SCHOOL OF ARCHITECTURE, BUILDING AND DESIGN
BUILDING STRUCTURES BLD61003 STRUCTURAL ANALYSIS OF A BUNGALOW
REST, RELAXATION AND COMMERCIAL CENTRE IN SEBANGKOI, SARIKEI, SARAWAK
TUTOR:
Mr Mohamed Rizal Mohamed
GROUP Chong Xian Jun Loi Chi Wun Ng Zien Loon Nicholas Wong Raemi Safri Yew Jey Yee
CONTENTS 1.0
INTRODUCTION
2.0
DRAWINGS
3.0
SUMMARY OF SPECIFICATIONS
4.0
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
1.0
INTRODUCTION
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
1.0 STRUCTURAL ANALYSIS OF BUNGALOW In a group of six, we were tasked to select and obtain drawings of a 2-3 storey bungalow, using our knowledge of structural theory to produce structural plans for the building. From the structural plans produced, we were then required to analyze the beams and columns of the building.
We chose the Rest, Relaxation and Commercial Centre (RRCC), a 3 storey building located in Sebangkoi, Sarikei, Sarawak. The building includes separate dormitories for both male and female occupants, and a seminar hall on the 2nd floor.
STRUCTURAL ANALYSIS OF A BUNGALOW
02
2.0
DRAWINGS ARCHITECTURAL FLOOR PLANS STRUCTURAL PLANS LOAD DISTRIBUTION PLANS COLUMN TRIBUTARY AREAS COLUMN AND BEAM DISTRIBUTION
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
2.1 ARCHITECTURAL DRAWINGS
GROUND FLOOR ARCHITECTURAL PLAN
1:300
FIRST FLOOR ARCHITECTURAL PLAN 1:300
STRUCTURAL ANALYSIS OF A BUNGALOW
04
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
2.1 ARCHITECTURAL DRAWINGS
SECOND FLOOR ARCHITECTURAL PLAN
ROOF ARCHITECTURAL PLAN
STRUCTURAL ANALYSIS OF A BUNGALOW
1:300
1:300
05
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
2.2 STRUCTURAL DRAWINGS
GROUND FLOOR STRUCTURAL PLAN
FIRST FLOOR STRUCTURAL PLAN
STRUCTURAL ANALYSIS OF A BUNGALOW
1:300
1:300
06
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
2.2 STRUCTURAL DRAWINGS
SECOND FLOOR STRUCTURAL PLAN
1:300
ROOF STRUCTURAL PLAN 1:300
STRUCTURAL ANALYSIS OF A BUNGALOW
07
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
2.3 LOAD DISTRIBUTION DRAWINGS
GROUND FLOOR LOAD DISTRIBUTION PLAN 1:300
FIRST FLOOR LOAD DISTRIBUTION PLAN 1:300
STRUCTURAL ANALYSIS OF A BUNGALOW
08
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
2.3 LOAD DISTRIBUTION DRAWINGS
SECOND FLOOR LOAD DISTRIBUTION PLAN 1:300
ROOF LOAD DISTRIBUTION PLAN 1:300
STRUCTURAL ANALYSIS OF A BUNGALOW
09
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
2.4 COLUMN TRIBUTARY DRAWINGS
GROUND FLOOR COLUMN TRIBUTARY PLAN 1:300
FIRST FLOOR COLUMN TRIBUTARY PLAN 1:300
STRUCTURAL ANALYSIS OF A BUNGALOW
10
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
2.4 COLUMN TRIBUTARY DRAWINGS
SECOND FLOOR COLUMN TRIBUTARY PLAN 1:300
ROOF COLUMN TRIBUTARY PLAN 1:300
STRUCTURAL ANALYSIS OF A BUNGALOW
11
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
2.5 COLUMN AND BEAM DISTRIBUTION
FIRST FLOOR LOAD DISTRIBUTION PLAN
CHONG XIAN JUN LOI CHI WUN NG ZIEN LOON NICHOLAS WONG YEW KHUNG RAEMI SAFRI YEW JEY YEE
STRUCTURAL ANALYSIS OF A BUNGALOW
12
3.0
SUMMARY OF SPECIFICATIONS
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
3.0 SUMMARY OF SPECIFICATIONS BEAM Dimension (width x length)
0.25m x 0.60m or 0.20m x 0.50m (refer to structural plans)
Material Density
24kN/m³ (reinforced concrete)
COLUMN Dimension (width x length x height)
0.30m x 0.30m x 3.00m
Material Density
24kN/m³ (reinforced concrete)
WALL Dimension (width x height)
0.15m x 3.00m
Material Density
19kN/m³ (brick)
SLAB Dimension (thickness)
0.125m
Material Density
24kN/m³ (reinforced concrete)
Live Load
1.50k/Nm²
ROOF Dead Load
1.00kN/m²
Live Load
0.50kN/m²
STRUCTURAL ANALYSIS OF A BUNGALOW
14
4.0
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
CHONG XIAN JUN 0332605 STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
FIRST FLOOR LOAD DISTRIBUTION PLAN
BEAM ANALYSIS BEAM B/2-3 (Uniformly Distributed Load) BEAM B-D/3 (Uniformly Distributed Load and Point Load from Beam B/2-4)
COLUMN ANALYSIS COLUMN A8 (Perimeter Column) COLUMN C6 (Interior Column)
STRUCTURAL ANALYSIS OF A BUNGALOW
17
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
BEAM ANALYSIS BEAM B/2-3
FIRST FLOOR LOAD DISTRIBUTION PLAN
BEAM B/2-3 CARRIES: Dead Load from beam self weight Dead Load from brick wall self weight Dead Load from slab self weight Live Load from slab
STRUCTURAL ANALYSIS OF A BUNGALOW
: Gridline B/2-3 : Gridline B/2-3 : Gridline B-C/2-3 : Gridline B-C/2-3
18
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
DEAD LOAD
2 3600
Beam Self Weight = Beam size x Density of reinforced concrete = (0.20 x 0.50) m² x 24 kN/m³ = 2.40 kN/m
2.40 kN/m
Brick Wall Self Weight = Wall height x Wall thickness x Density of brick = (3.00 x 0.15) m² x 19 kN/m³ = 8.55 kN/m
8.55 kN/m
Slab B-C/2-3 Self Weight = Slab thickness x Density of reinforced concrete x Lx/2 = (0.125m x 24 kN/m³) x 3.6/2 = 3 kN/m² x 1.8m = 5.40 kN/m
5.40 kN/m
16.35 kN/m
Total Dead Load For 2-3 = (2.40 + 8.55 + 5.40) kN/m = 16.35 kN/m
LIVE LOAD
2
Ultimate Dead Load = Total dead load x Load factor = 16.35 kN/m x 1.4 = 22.89 kN/m
STRUCTURAL ANALYSIS OF A BUNGALOW
3 3600
Slab B-C/2-3 = Live load (UBBL) x Lx/2 = 1.5 kN/m² x 3.6/2 = 2.70 kN/m
ULTIMATE LOAD
3
2.70 kN/m
2
3 3600
22.89 kN/m
19
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
Ultimate Live Load = Total live load x Load factor = 2.70 kN/m x 1.6 = 4.32 kN/m
2
3 4.32 kN/m
Total Ultimate Load For B/2-3 = (22.89 + 4.32) kN/m = 27.21 kN/m
REACTION FORCES
27.21 kN/m
2
3 3600
Total Load = 27.21 kN/m x 3.6 m = 97.96 kN
1800
1800
97.96 kN ΣM = 0 0 = M3B2 + (-M3B1) = (Ra x 3.6) - (97.96 x 1.8) = 3.6 Ra - 176.32 3.6 R2B = 176.32 R2B= 48.98 kN
ΣF = 0 0 = R2B +R3B + (-97.96) 0 = 48.98 + R3B -97.96 R3B = 97.96 - 48.98 = 48.98 kN
M3B2 M3B1
R2B
R3B
27.21 kN/m
48.98 kN
48.98 kN
SHEAR FORCES 48.98 - 97.96 = -48.98 kN -48.98 + 48.98 = 0 kN
48.98 kN -48.98 + 48.98 = 0kN
48.98 - 97.96 = -48.98 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
20
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
BENDING MOMENT Positive Area = 48.98 kN x 1.8 m x ½ = 44.08 kNm 44.08 kNm Negative Area = -48.98 kN x 1.8 m x ½ = -44.08 kNm
∴ Positive area = Negative area 44.08 kNm + (-44.08 kNm) = 0
STRUCTURAL ANALYSIS OF A BUNGALOW
0 kNm
44.08-44.08 = 0 kNm
21
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
BEAM C/2-4
FIRST FLOOR LOAD DISTRIBUTION PLAN
BEAM C/2-4 CARRIES: Dead Load from beam self weight Dead Load from brick wall self weight Dead Load from slab self weight Live Load from slab
: Gridline C/2-3, C/3-4 : Gridline C/ 2-3. C/3-4 : Gridline B-C/2-3, C-D/2-3, B-C/3-4, C-D/3-4 : Gridline B-C/2-3, C-D/2-3, B-C/3-4, C-D/3-4
2 DEAD LOAD Beam Self Weight = Beam size x Density of reinforced concrete = (0.25 x 0.60) m² x 24 kN/m³ = 7.20 kN/m
STRUCTURAL ANALYSIS OF A BUNGALOW
3
4
7200
7.20 kN/m
22
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
2 Brick Wall Self Weight = Wall thickness x Height x Density of reinforced concrete = (0.15 x 3) m² x 19 kN/m³ = 8.55 kN/m
Slab B-C/2-3 Self Weight = Slab thickness x Density of reinforced concrete x Lx/2 = (0.125m x 24 kN/m³) x 3.6/2 = 3 kN/m² x 1.8m = 5.40 kN/m
Slab C-D/2-3 Self Weight = Slab thickness x Density of reinforced concrete x Lx/2 = (0.125m x 24 kN/m³) x 3.6/2 = 3 kN/m² x 1.8m = 5.40 kN/m
Slab B-C/3-4 Self Weight = Slab thickness x Density of reinforced concrete x Lx/2 = (0.125m x 24 kN/m³) x 3.6/2 = 3 kN/m² x 1.8m = 5.40 kN/m
Slab C-D/3-4 Self Weight = Slab thickness x Density of reinforced concrete x Lx/2 = (0.125m x 24 kN/m³) x 3.6/2 = 3 kN/m² x 1.8m = 5.40 kN/m
STRUCTURAL ANALYSIS OF A BUNGALOW
3
4
8.55 kN/m
5.40 kN/m
5.40 kN/m
5.40 kN/m
5.40 kN/m
23
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
2
3
4
7200
Total Dead Load For 5-6 = (7.20 + 8.55 + 5.40 + 5.40) kN/m = 26.55 kN/m
26.55 kN/m
LIVE LOAD Slab B-C/2-3 = Live load (UBBL) x Lx/2 = 1.5 kN/m² x 3.6/2 = 2.70 kN/m
2.70 kN/m
Slab C-D/2-3 = Live load (UBBL) x Lx/2 = 1.5 kN/m² x 3.6/2 = 2.70 kN/m
2.70 kN/m
Slab B-C/3-4 = Live load (UBBL) x Lx/2 = 1.5 kN/m² x 3.6/2 = 2.70 kN/m
Slab C-D/3-4 = Live load (UBBL) x Lx/2 = 1.5 kN/m² x 3.6/2 = 2.70 kN/m
Total Live Load For 2-3 = (2.70 + 2.70 ) kN/m = 5.40 kN/m
2.70 kN/m
2.70 kN/m
5.40 kN/m
For 3-4 = (2.70 + 2.70) kN/m = 5.40 kN/m STRUCTURAL ANALYSIS OF A BUNGALOW
24
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
ULTIMATE LOAD
2
3
4
Ultimate Dead Load For 2-3 = Total dead load x Load factor = 26.55 kN/m x 1.4 = 37.17 kN/m For 3-4 = Total dead load x Load factor = 26.55 kN/m x 1.4 = 37.17 kN/m
3600
3600
37.17 kN/m
37.17 kN/m
Ultimate Live Load For 2-3 = Total dead load x Load factor = 5.40 kN/m x 1.6 = 8.64 kN/m For 3-4 = Total dead load x Load factor = 5.40 kN/m x 1.6 = 8.64 kN/m
8.64 kN/m
8.64 kN/m
45.81 kN/m
45.81 kN/m
164.91 kN
164.91 kN
7200
Total Ultimate Load For 2-3 = (37.17 + 8.64) kN/m = 45.81 kN/m For 3-4 = (37.17 + 8.64) kN/m = 45.81 kN/m
REACTION FORCES Total Load For 2-3 = 45.81 kN/m x 3.6 m = 164.91 kN For 3-4 = 45.81 kN/m x 3.6m = 164.91 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
R2C
R3C
R4C
25
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
2
3
4
7200 3600
For C/ 2-3, About Point C3, ΣM = 0 (164.91 x 1.8 - 3.6 RC2 ) kNm = 0 R2C = (164.91 x 1.8)/3.6 kN = 82.46 kN ΣF = 0 164.91kN - RC2 - RC3 = 0 R3C = (164.91 - 82.46) kN = 82.46 kN
3600
164.91 kN M3C1 M3C2
R2C
R3C 45.81 kN/m
82.46 kN
82.46 kN
164.91 kN
For C/ 3-4 ΣM = 0 (164.91 x 1.8 - 3.6 R2C ) kNm = 0 R4C = (164.91 x 1.8)/3.6 kN = 82.46 kN
M3C4
M3C3
R3C
ΣF = 0 164.91kN - RC4 - RC3 = 0 R3C = (164.91 - 82.46) kN = 82.46 kN
R4C 45.81 kN/m
82.46 kN
45.81 kN/m
Total Reaction Forces R3C (Total) = R3C (From C/ 2-3) + R3C (from C/ 3-4) = (82.46 + 82.46) kN = 164.92 kN 82.46 kN STRUCTURAL ANALYSIS OF A BUNGALOW
82.46 kN
164.92 kN
82.46 kN 26
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
BEAM B-D/3
FIRST FLOOR LOAD DISTRIBUTION PLAN
BEAM B-D/3 CARRIES: Dead Load from beam self weight Dead Load from slab self weight Live Load from slab Point Load from B/2-4
STRUCTURAL ANALYSIS OF A BUNGALOW
: Gridline B-C/3, C-D/3 : Gridline B-C/2-3, C-D/2-3, B-C/3-4, C-D/3-4 : Gridline B-C/2-3, C-D/2-3, B-C/3-4, C-D/3-4 : Gridline B/2-4
27
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
DEAD LOAD Beam Self Weight = Beam size x Density of reinforced concrete = (0.20 x 0.50) m² x 24 kN/m³ = 2.40 kN/m
B
C 7200
2.40 kN/m
Slab B-C/2-3 Self Weight = Slab thickness x Density of reinforced concrete x Lx/2 = (0.125m x 24 kN/m³) x 3.6/2 = 3 kN/m² x 1.8m = 5.40 kN/m
5.40 kN/m
Slab B-C/3-4 Self Weight = Slab thickness x Density of reinforced concrete x Lx/2 = (0.125m x 24 kN/m³) x 3.6/2 = 3 kN/m² x 1.8m = 5.40 kN/m
5.40 kN/m
Slab C-D/2-3 Self Weight = Slab thickness x Density of reinforced concrete x Lx/2 = (0.125m x 24 kN/m³) x 3.6/2 = 3 kN/m² x 1.8m = 5.40 kN/m
Slab C-D/3-4 Self Weight = Slab thickness x Density of reinforced concrete x Lx/2 = (0.125m x 24 kN/m³) x 3.6/2 = 3 kN/m² x 1.8m = 5.40 kN/m
STRUCTURAL ANALYSIS OF A BUNGALOW
D
5.40kN/m
5.40 kN/m
28
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
Total dead load from slab For B-C/3 = ( 5.40 + 5.40) kN = 10.80 kN
B
C
D
7200
10.80 kN/m
10.80 kN/m
For C-D/3 = ( 5.40 + 5.40) kN = 10.80 kN
Total uniformly distributed load = 2.40 + 10.80 = 13.20 kN/m
164.92 kN 10.80 kN/m
10.80 kN/m
Total point load from beams C/ 2-4 = R3C (Total) = 164.92 kN
LIVE LOAD Slab B-C/2-3 = Live load (UBBL) x Lx/2 = 1.5 kN/m² x 3.6/2 = 2.70 kN/m
Slab B-C/3-4 = Live load (UBBL) x Lx/2 = 1.5 kN/m² x 3.6/2 = 2.70 kN/m
Slab C-D/2-3 = Live load (UBBL) x Lx/2 = 1.5 kN/m² x 3.6/2 = 2.70 kN/m
STRUCTURAL ANALYSIS OF A BUNGALOW
2.70 kN/m
2.70 kN/m
2.70 kN/m
29
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
B
C
D
7200
Slab C-D/3-4 = Live load (UBBL) x Lx/2 = 1.5 kN/m² x 3.6/2 = 2.70 kN/m
Total Live Load For B-C = (2.70 + 2.70 ) kN/m = 5.40 kN/m
2.70 kN/m
5.40 kN/m
For C-D = (2.70 + 2.70 ) kN/m = 5.40 kN/m
ULTIMATE LOAD
18.48 kN/m
Ultimate uniformly distributed dead load (UDL) = ( 13.20 x 1.4 ) kN = 18.48 kN 8.64 kN/m Ultimate live load = ( 5.40 x 1.6 ) kN = 8.64 kN
Total Ultimate Load = ( 18.48 + 8.64 ) kN = 27.12 kN Ultimate dead point load = ( 164.92 x 1.4 ) kN = 230.89 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
230.89 kN 27.12 kN/m
30
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
REACTION FORCES
B
Total Load = 27.12 kN/m x 7.2 m + Point Load = ( 195.26 + 230.89) kN = 426.15 kN About point 3D ΣM = 0 0 = M3D1 + (-M3D2)) = (R3B x 7.2) - (426.15 x 3.6) = 7.2 R3B - 1534.14 7.2 R3B = 1534.14 R3B = 213.08 kN
C
D
7200
426.15 kN MD3 (1) MD3 (2)
R3B
R3D
230.89 kN 27.12 kN/m
ΣF = 0 0 = R3B +R3D + (-426.15) 0 = 213.08 + R3D - 426.15 R3D = 426.15 - 213.08 = 213.07 kN
SHEAR FORCES
213.08 kN
213.08 kN
27.12 x 3.6 = 97.63 kN 213.08 - 97.63 = 115.45 kN 115.45 - 230.89 = -115.44 kN -115.44 - 97.63 = -213.07 kN -213.07 + 213.07 = 0 kN
213.07 kN
213.08 - 97.63 = 115.45kN
115.45 - 230.89 = -115.44kN
BENDING MOMENT Positive Area = (213.08 + 115.45) kN x ½ x 3.6 m = 591.35 kNm
-213.07+213.07 = 0kN
-115.44-97.63 = -213.07 kN
591.35 kNm
Negative Area = (-115.45 - 213.07) kN x ½ x 3.6 m = -591.35 kNm ∴ Positive area = Negative area 591.35 kNm + (-591.35 kNm) = 0 STRUCTURAL ANALYSIS OF A BUNGALOW
0 kNm
591.35 - 591.35
= 0 kNm
31
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
COLUMN ANALYSIS COLUMN B2
ROOF LEVEL TRIBUTARY AREA
ROOF LEVEL DEAD LOAD
LIVE LOAD
Roof Weight = (1.8 x 1.8) m² x 1.0 kN/m² = 3.24 kN
Roof Weight = (1.8 x 1.8) m² x 0.5 kN/m² = 1.62kN
Roof Beam = (1.8 + 1.8) m x 1.44 kN/m = 5.18 kN
Total Dead Load = (3.24 + 5.18) kN = 8.42 kN STRUCTURAL ANALYSIS OF A BUNGALOW
32
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
SECOND FLOOR TRIBUTARY AREA
SECOND FLOOR DEAD LOAD Roof Self Weight = (3.60 x 2.70) m² x 1.0 kN/m² = 9.72 kN
LIVE LOAD Total Live Load from Roof = (3.60 x 2.70) m² x 0.5 kN/m² = 4.86 kN
Beam Self Weight = (1.80 + 1.80 + 3.60 + 0.90) m x 1.44 kN/m + 2.7 m x 1.44 kN/m x ½ = 11.66 kN + 1.94 kN = 13.60 kN
Brick Wall Self Weight = ( 1.80 + 1.80 )m x 10 kN/m = 36.00 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
33
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
Column Self Weight = (0.3 x 0.3 x 3.0) m³ x 24 kN/m³ = 6.48 kN
Total Dead Load = (9.72 + 13.60 + 36.00 + 6.48) kN = 65.80 kN
FIRST FLOOR TRIBUTARY AREA
STRUCTURAL ANALYSIS OF A BUNGALOW
34
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
FIRST FLOOR DEAD LOAD
LIVE LOAD
Slab Self Weight = (2.70 x 3.60) m² x 3.6 kN/m² = 34.99 kN
Total Live Load = (2.70 x 3.60) m² x 1.5 kN/m² = 14.58 kN
Beam Self Weight = (1.80 + 1.80 + 0.90 + 3.60) m x 1.44 kN/m + 2.70 m x 1.44 kN/m x ½ = 13.61 kN
Brick Wall Self Weight = (1.80 + 1.80 + 0.90) m x 10 kN/m = 45.00 kN
Column Self Weight = (0.3 x 0.3 x 3.0) m³ x 24 kN/m³ = 6.48 kN
Total Dead Load = (34.99 + 13.61 + 45.00 + 6.48) kN = 100.08 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
35
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
GROUND FLOOR TRIBUTARY AREA
GROUND FLOOR DEAD LOAD
LIVE LOAD
Slab Self Weight = (5.40 x 1.80 + 0.90 x 3.60) m² x 3.6 kN/m² = 46.66 kN
Total Live Load = (5.40 x 1.80 + 0.90 x 3.60) m² x 1.5 kN/m² = 19.44 kN
Beam Self Weight = (1.80 + 1.80 + 0.90 + 3.60) m x 1.44 kN/m + 2.70 m x 1.44 kN/m x ½ = 11.66 kN + 1.94 kN = 13.60 kN
Brick Wall Self Weight = (1.80 + 1.80 + 0.90) m x 10 kN/m = 45.00 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
36
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
Column Self Weight = (0.3 x 0.3 x 3.0) m³ x 24 kN/m³ = 6.48 kN
Total Dead Load = (46.66 + 13.60 + 45.00 + 6.48) kN = 111.74 kN
ULTIMATE LOAD Total Dead Load = (8.42 + 65.80 + 100.08 + 111.74) kN = 286.04 kN Ultimate Dead Load = 286.04 kN x 1.4 = 400.46 kN
Total Live Load = (1.62 + 4.86 + 14.88 + 19.94) kN = 41.00 kN Ultimate Live Load = 41.00 x 1.6 = 65.60 kN
Total Ultimate Load = Ultimate dead load + Ultimate live load = (400.46 + 65.60) kN = 466.06 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
37
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
COLUMN ANALYSIS COLUMN D3
SECOND FLOOR TRIBUTARY AREA
SECOND FLOOR DEAD LOAD
LIVE LOAD
Roof Self Weight = (7.20 x 4.50) m² x 1.0 kN/m² = 32.40 kN
Total Live Load from Roof = (7.20 x 4.50) m² x 0.5 kN/m² = 16.20 kN
Beam Self Weight = 4.5 m x 1.44 kN/m + 4.5 m x 2 x 1.44 kN/m x ½ = 12.96 kN Column Self Weight = (0.3 x 0.3 x 3.0) m³ x 24 kN/m³ = 6.48 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
38
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
Total Dead Load = (32.40 + 12.96 + 6.48) kN = 51.84 kN
FIRST FLOOR TRIBUTARY AREA
FIRST FLOOR DEAD LOAD
LIVE LOAD
Slab Self Weight = (7.20 x 4.50) m² x 3.6 kN/m² = 116.64 kN
Total Live Load = (7.20 x 4.50) m² x 1.5 kN/m² = 48.60 kN
Beam Self Weight = 4.50 m x 1.44 kN/m + 4.50 m x 2 x 1.44 kN/m x ½ = 12.96 kN Brick Wall Self Weight = 4.50 m x 10 kN/m + 4.50m x 2 x 10 kN/m x ½ = 90.00 kN STRUCTURAL ANALYSIS OF A BUNGALOW
39
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
Column Self Weight = (0.3 x 0.3 x 3.0) m³ x 24 kN/m³ = 6.48 kN
Total Dead Load = (116.64 + 12.96 + 90.00 + 6.48) kN = 226.08 kN
GROUND FLOOR TRIBUTARY AREA
GROUND FLOOR DEAD LOAD
LIVE LOAD
Slab Self Weight = (7.20 x 4.50) m² x 3.6 kN/m² = 116.64 kN
Total Live Load = (7.20 x 4.50) m² x 1.5 kN/m² = 48.60 kN
Beam Self Weight = 4.50 m x 1.44 kN/m + 4.50 m x 2 x 1.44 kN/m x ½ = 12.96 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
40
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
Brick Wall Self Weight = 4.50 m x 10 kN/m + 4.50m x 2 x 10 kN/m x ½ = 90.00 kN Column Self Weight = (0.3 x 0.3 x 3.0) m³ x 24 kN/m³ = 6.48 kN Total Dead Load = (116.64 + 12.96 + 90.00 + 6.48) kN = 226.08 kN
ULTIMATE LOAD Total Dead Load = (51.84 + 226.08 + 226.08) kN = 504.00 kN Ultimate Dead Load = 504.00 kN x 1.4 = 705.60 kN
Total Live Load = (16.20 + 48.60 + 48.60) kN = 113.40 kN Ultimate Live Load = 113.40 kN x 1.6 = 181.44 kN
Total Ultimate Load = Ultimate dead load + Ultimate live load = (705.60 + 113.40) kN = 819.00 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
41
LOI CHI WUN 0328652 STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
BEAM ANALYSIS BEAM E/6-8
FIRST FLOOR LOAD DISTRIBUTION PLAN
BEAM A/5-6 CARRIES: Dead Load from beam self weight Dead Load from brick wall self weight Dead Load from slab self weight Live Load from slab
STRUCTURAL ANALYSIS OF A BUNGALOW
: Gridline 6-8 : Gridline 6-8 : Gridline D-E/6-8 , E-F/6-8 : Gridline D-E/6-8 , E-F/6-8
43
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
DEAD LOAD
5 4200
Beam Self Weight = Beam size x Density of reinforced concrete = (0.25 x 0.60) m² x 24 kN/m³ = 3.60 kN/m
3.60 kN/m
Brick Wall Self Weight = Wall height x Wall thickness x Density of brick = (3.00 x 0.15) m² x 19 kN/m³ = 8.55 kN/m
8.55 kN/m
Slab A-B/5-6 Self Weight = Slab thickness x Density of reinforced concrete x Lx/2 = (0.125m x 24 kN/m³) x 3.6/2 = 3 kN/m² x 1.8m = 5.40 kN/m
5.40 kN/m
17.55 kN/m
Total Dead Load For 5-6 = (3.60 + 8.55 + 5.40) kN/m = 17.55 kN/m
LIVE LOAD
5
Ultimate Dead Load = Total dead load x Load factor = 17.55 kN/m x 1.4 = 24.57 kN/m
STRUCTURAL ANALYSIS OF A BUNGALOW
6 4200
Slab A-B/5-6 = Live load (UBBL) x Lx/2 = 1.5 kN/m² x 3.6/2 = 2.70 kN/m
ULTIMATE LOAD
6
2.70 kN/m
5
6 4200
24.57 kN/m
44
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
Ultimate Live Load = Total live load x Load factor = 2.70 kN/m x 1.6 = 4.32 kN/m
4.32 kN/m
28.89 kN/m
Total Ultimate Load For 5-6 = (24.57 + 4.32) kN/m = 28.89 kN/m
REACTION FORCES
5
6 4200
Total Load = 28.89 kN/m x 4.2 m = 121.34 kN By using 6A as reference point, ΣM = 0 0 = M6A1 + (-M6A2) = (R5A x 4.2) - (121.34 x 2.1) = 4.2 R5A - 254.81 4.2 R5A = 254.81 R5A = 60.67 kN
ΣFy = 0 0 = R5A +R6A + (-121.34) 0 = 60.67 + R6A -121.34 R6A = 121.34 - 60.67 = 60.67 kN
2100
M6A1
2100
121.34 kN
M6A2 R5A
R6A
28.89 kN/m
60.67 kN
60.67 kN
SHEAR FORCES 60.67 - 121.34 = -60.67 kN -60.67 + 60.67 = 0 kN
60.67 kN -60.67 + 60.67 = 0kN
60.60 - 121.34 = -60.67 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
45
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
BENDING MOMENT Positive Area = 60.67 kN x 2.1 m x ½ = 63.70 kNm 63.70 kNm Negative Area = -60.67 kN x 2.1 m x ½ = -63.70 kNm
∴ Positive area = Negative area 63.70 kNm + (-63.70 kNm) = 0
STRUCTURAL ANALYSIS OF A BUNGALOW
0 kNm
63.70 - 63.70 = 0 kNm
46
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
DEAD LOAD
6 4800
Beam Self Weight = Beam size x Density of reinforced concrete = (0.25 x 0.60) m² x 24 kN/m³ = 3.60 kN/m
3.60 kN/m
Brick Wall Self Weight = Wall height x Wall thickness x Density of brick = (3.00 x 0.15) m² x 19 kN/m³ = 8.55 kN/m
8.55 kN/m
Slab D-E/6-8 Self Weight = Slab thickness x Density of reinforced concrete x Lx/2 = (0.125m x 24 kN/m³) x 3.6/2 = 3 kN/m² x 1.8m = 5.40 kN/m
5.40 kN/m
Slab E-F/6-8 Self Weight = Slab thickness x Density of reinforced concrete x Lx/2 = (0.125m x 24 kN/m³) x 3.6/2 = 3 kN/m² x 1.8m = 5.40 kN/m
5.40 kN/m
22.95 kN/m
Total Dead Load For 6-8 = (3.60 + 8.55 + 5.40 + 5.40 ) kN/m = 22.95 kN/m
LIVE LOAD Slab D-E/6-8 = Live load (UBBL) x Lx/2 = 1.5 kN/m² x 3.6/2 = 2.70 kN/m
STRUCTURAL ANALYSIS OF A BUNGALOW
8
6
8 4800
2.70 kN/m
47
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
Slab D-E/6-8 = Live load (UBBL) x Lx/2 = 1.5 kN/m² x 3.6/2 = 2.70 kN/m
2.70 kN/m
5.40 kN/m
Total Live Load For 6-8 = (2.70 + 2.70) kN/m = 5.40 kN/m
ULTIMATE LOAD
6
4800
Ultimate Dead Load = Total dead load x Load factor = 22.95 kN/m x 1.4 = 32.13 kN/m
32.13 kN/m
Ultimate Live Load = Total live load x Load Factor = 5.4 kN/m x 1.6 = 8.64 kN/m
2.70 kN/m
Total Ultimate Load For 6-8 = (32.13 + 8.64) kN/m = 40.77 kN/m
40.77 kN/m
STRUCTURAL ANALYSIS OF A BUNGALOW
8
48
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
REACTION FORCES
6
8 4800
Total Load = 40.77 kN/m x 4.8 m = 195.70 kN By using 6E as reference point, ΣM = 0 0 = M6E1 + (-M6E2) = (R6E x 4.8) - (195.70 x 2.4) = 4.8 R6E - 469.68 4.8 R6E = 469.68 R6E = 97.85 kN
ΣFy = 0 0 = R6E +R8E + (-195.70) 0 = 97.85 + R6A -195.70 R6A = 195.70 - 97.85 = 97.85 kN
SHEAR FORCES
2400
M6E1
2400
195.70 kN
M6E2 R6E
R8E
40.77 kN/m
97.85 kN
97.85 kN
97.85 kN -97.85 + 97.85 = 0kN
97.85 - 195.70 = -97.85 kN -97.85 + 97.85 = 0 kN
97.85 - 195.70 = -97.85 kN
BENDING MOMENT Positive Area = 97.85 kN x 2.1 m x ½ = 102.74 kNm 102.74 kNm
Negative Area = -97.85 kN x 2.1 m x ½ = -102.74 kNm
∴ Positive area = Negative area 102.74 kNm + ( -102.74 kNm ) = 0 STRUCTURAL ANALYSIS OF A BUNGALOW
0 kNm
102.74-102.74 = 0 kNm 49
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
BEAM F/6-8
FIRST FLOOR LOAD DISTRIBUTION PLAN
BEAM F/6-8 CARRIES: Dead Load from beam self weight Dead Load from brick wall self weight Dead Load from slab self weight Live Load from slab
STRUCTURAL ANALYSIS OF A BUNGALOW
: Gridline 6-8 : Gridline 6-8 : Gridline E-F/6-8, F-G/6-8 : Gridline E-F/6-8, F-G/6-8
50
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
DEAD LOAD
6 4800
Beam Self Weight = Beam size x Density of reinforced concrete = (0.20 x 0.50) m² x 24 kN/m³ = 2.40 kN/m
2.40 kN/m
Brick Wall Self Weight = Wall height x Wall thickness x Density of brick = (3.00 x 0.15) m² x 19 kN/m³ = 8.55 kN/m
8.55 kN/m
Slab E-F/6-8 Self Weight = Slab thickness x Density of reinforced concrete x Lx/2 = (0.125m x 24 kN/m³) x 3.6/2 = 3 kN/m² x 1.8m = 5.40 kN/m
5.40 kN/m
Slab F-G/6-8 Self Weight = Slab thickness x Density of reinforced concrete x Lx/2 = (0.125m x 24 kN/m³) x 3.6/2 = 3 kN/m² x 1.8m = 5.40 kN/m
5.40 kN/m
21.75 kN/m
Total Dead Load For 6-8 = (2.40 + 8.55 + 5.40 + 5.40) kN/m = 21.75 kN/m
LIVE LOAD Slab E-F/6-8 = Live load (UBBL) x Lx/2 = 1.5 kN/m² x 3.6/2 = 2.70 kN/m
STRUCTURAL ANALYSIS OF A BUNGALOW
8
6
8 4800
2.70 kN/m
51
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
Slab F-G/6-8 = Live load (UBBL) x Lx/2 = 1.5 kN/m² x 3.6/2 = 2.70 kN/m
2.70 kN/m
5.40 kN/m
Total Live Load For 6-8 = (2.70 + 2.70) kN/m = 5.40 kN/m ULTIMATE LOAD Ultimate Dead Load = Total dead load x Load factor = 21.75 kN/m x 1.4 = 30.45 kN/m
Ultimate Live Load = Total live load x Load factor = 5.40 kN/m x 1.6 = 8.64 kN/m
6
8 4800
30.45 kN/m
8.64 kN/m
39.09 kN/m Total Ultimate Load For 6-8 = (30.45 + 8.64) kN/m = 39.09 kN/m
STRUCTURAL ANALYSIS OF A BUNGALOW
52
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
REACTION FORCES
6
8 4800
Total Load = 39.09 kN/m x 4.8 m = 187.63 kN By using 6F as reference point, ΣM = 0 0 = M6F1 + (-M6F2) = (R6F x 4.8) - (187.63 x 2.4) = 4.8 R6F - 450.32 4.2 R6F = 450.32 R5B = 93.82 kN
ΣFy = 0 0 = R6B +R8B + (-187.63) 0 = 93.82 + R8B -187.63 R8B = 187.63 - 93.82 = 93.82 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
2400
M6F1
2400
187.63 kN
M6F2
R6F
R8F
39.09 kN/m
93.82 kN
93.82 kN
53
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
BEAM F/5-6
FIRST FLOOR LOAD DISTRIBUTION PLAN
BEAM F/5-6 CARRIES: Dead Load from beam self weight Dead Load from brick wall self weight Dead Load from slab self weight Live Load from slab
STRUCTURAL ANALYSIS OF A BUNGALOW
: Gridline 5-6 : Gridline 5-6 : Gridline E-F/5-6, F-G/5-6 : Gridline E-F/5-6, F-G/5-6
54
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
DEAD LOAD
5
6 4200
Beam Self Weight = Beam size x Density of reinforced concrete = (0.25 x 0.50) m² x 24 kN/m³ = 2.40 kN/m
2.40 kN/m
Brick Wall Self Weight = Wall height x Wall thickness x Density of brick = (3.00 x 0.15) m² x 19 kN/m³ = 8.55 kN/m
8.55 kN/m
Slab E-F/5-6 Self Weight = Slab thickness x Density of reinforced concrete x Lx/2 = (0.125m x 24 kN/m³) x 3.6/2 = 3 kN/m² x 1.8m = 5.40 kN/m
5.40 kN/m
Slab F-G/5-6 Self Weight = Slab thickness x Density of reinforced concrete x Lx/2 = (0.125m x 24 kN/m³) x 3.6/2 = 3 kN/m² x 1.8m = 5.40 kN/m
5.40 kN/m
21.75 kN/m
Total Dead Load For 5-6 = (2.40 + 8.55 + 5.40 + 5.40 ) kN/m = 21.75 kN/m
LIVE LOAD
5
6 4200
Slab E-F/5-6 = Live load (UBBL) x Lx/2 = 1.5 kN/m² x 3.6/2 = 2.70 kN/m Slab F-G/5-6 = Live load (UBBL) x Lx/2 = 1.5 kN/m² x 3.6/2 = 2.70 kN/m STRUCTURAL ANALYSIS OF A BUNGALOW
2.70 kN/m
2.70 kN/m
55
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
Total Live Load For 5-6 = (2.70 + 2.70) kN/m = 5.40 kN/m
ULTIMATE LOAD
5.40kN/m
5
6
Ultimate Dead Load = Total dead load x Load factor = 21.75 kN/m x 1.4 = 30.45 kN/m
4200
30.45 kN/m
Ultimate Live Load = Total live load x Load factor = 5.40 kN/m x 1.6 = 8.64 kN/m
8.64 kN/m
39.09 kN/m
Total Ultimate Load For 5-6 = (30.45 + 8.64) kN/m = 39.09 kN/m REACTION FORCES Total Load = 39.09 kN/m x 4.2 m = 689.56 kN By using 6F as reference point, ΣM = 0 0 = M5F1 + (-M5F2) = (R5F x 4.2) - (689.56 x 2.1) = 4.2 R5F - 1448.07 4.2 R5F = 1448.07 R5F = 344.78 kN ΣFy = 0 0 = R5F +R6F + (-689.56) 0 = 344.78 + R6F -689.56 R6F = 689.56 - 344.78 = 344.78 kN STRUCTURAL ANALYSIS OF A BUNGALOW
5
6 4200 2100
M5F1
2100
689.56 kN
M5F2 R5F
R6F
39.09 kN/m
344.78 kN
344.78 kN 56
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
BEAM 6/E-G
FIRST FLOOR LOAD DISTRIBUTION PLAN
BEAM 6/E-G CARRIES: Dead Load from beam self weight Dead Load from brick wall self weight Dead Load from slab self weight Live Load from slab
STRUCTURAL ANALYSIS OF A BUNGALOW
: Gridline E-F : Gridline E-F : Gridline E-F/6-8, E-F/5-6, F-G/6-8, F-G/5-6 : Gridline E-F/6-8, E-F/5-6, F-G/6-8, F-G/5-6
57
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
DEAD LOAD Beam Self Weight = Beam size x Density of reinforced concrete = (0.20 x 0.50) m² x 24 kN/m³ = 2.40 kN/m
Slab E-F/6-8 Self Weight = Slab thickness x Density of reinforced concrete x Lx/2 x 2/3 = (0.125 m x 24 kN/m³) x 3.6/2 x 2/3 = 3 kN/m² x 1.8 m x 2/3 = 3.60 kN/m
Slab E-F/5-6 Self Weight = Slab thickness x Density of reinforced concrete x Lx/2 x 2/3 = (0.125 m x 24 kN/m³) x 3.6/2 x 2/3 = 3 kN/m² x 1.8 m x 2/3 = 3.60 kN/m
E
F 7200 3600
3600
2.40 kN/m
3.60 kN/m
3.60 kN/m
3.60 kN/m
Slab F-G/6-8 Self Weight = Slab thickness x Density of reinforced concrete x Lx/2 x 2/3 = (0.125 m x 24 kN/m³) x 3.6/2 x 2/3 = 3 kN/m² x 1.8 m x 2/3 = 3.60 kN/m
3.60 kN/m
Slab F-G/5-6 Self Weight = Slab thickness x Density of reinforced concrete x Lx/2 x 2/3 = (0.125 m x 24 kN/m³) x 3.6/2 x 2/3 = 3 kN/m² x 1.8 m x 2/3 = 3.60 kN/m Total Dead Load For E-F = (2.40 + 3.60 + 3.60) kN/m = 9.60 kN/m For F-G = (2.40 + 3.60 + 3.60) kN/m = 9.60 kN/m STRUCTURAL ANALYSIS OF A BUNGALOW
G
9.60 kN/m
9.60 kN/m
58
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
LIVE LOAD
E
Slab E-F/6-8 = Live load (UBBL) x Lx/2 x 2/3 = 1.5 kN/m² x 3.6/2 x 2/3 = 1.80 kN/m
F
G
7200 3600
3600
1.80 kN/m
Slab E-F/5-6 = Live load (UBBL) x Lx/2 x 2/3 = 1.5 kN/m² x 3.6/2 x 2/3 = 1.80 kN/m
1.80 kN/m
Slab F-G/6-8 = Live load (UBBL) x Lx/2 x 2/3 = 1.5 kN/m² x 3.6/2 x 2/3 = 1.80 kN/m
1.80 kN/m
Slab F-G/5-6 = Live load (UBBL) x Lx/2 x 2/3 = 1.5 kN/m² x 3.6/2 x 2/3 = 1.80 kN/m
1.80 kN/m
Total Live Load For E-F = (1.80 + 1.80) kN/m = 3.60 kN/m For F-G = (1.80 + 1.80) kN/m = 3.60 kN/m
ULTIMATE LOAD Ultimate Dead Load For E-F = Total dead load x Load factor = 9.60 kN/m x 1.4 = 13.44 kN/m For F-G = Total dead load x Load factor = 9.60 kN/m x 1.4 = 13.44 kN/m
STRUCTURAL ANALYSIS OF A BUNGALOW
3.60 kN/m
E
3.60 kN/m
F
G
7200 3600
3600
13.44 kN/m
13.44 kN/m
59
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
Ultimate Live Load For E-F = Total live load x Load factor = 3.60 kN/m x 1.6 = 5.76 kN/m For F-G = Total live load x Load factor = 3.60 kN/m x 1.6 = 5.76 kN/m
Total Ultimate Load For E-F = (13.44 + 5.76) kN/m = 19.20 kN/m For F-G = (13.44 + 5.76) kN/m = 19.20 kN/m
5.76 kN/m
5.76 kN/m
19.20 kN/m
19.20 kN/m
438.60 kN
Point Load = R6F (from Beam F/6-8) + R6F (from Beam F/5-6) = (93.82 + 344.78) kN = 438.60 kN
19.20 kN/m
19.20 kN/m
REACTION FORCES Total Load For E-F = 19.20 kN/m x 3.6 m = 69.12 kN For F-G = 19.20 kN/m x 3.6 m = 69.12 kN By using 6G as reference point, ΣM = 0 0 = M6G1 + (-M6G2) + (-M6G3) + (-M6G4) = (R6E x 7.2) - (69.12 x 5.4) - (438.60 x 3.6) - (69.12 x 1.8) = 7.2 R6E - 373.25 - 1578.96 - 124.42 7.2 R6E = 2076.73 R6E = 288.42 kN ΣFy = 0 0 = R6E +R6G + (-69.12) + (-438.60) + (-69.12) 0 = 288.42 + R6G - 69.12 - 438.60 - 69.12 R6G = -288.42 +69.12 +438.60 +69.12 = 288.42 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
F
E
G
7200 1800
1800
1800
1800
438.60 kN 69.12 kN 69.12 kN M6G1 M6G2
M6G3
M6G4
R6E
R6G 438.60 kN 19.20 kN/m
288.42 kN
19.20 kN/m
288.42 kN
60
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
SHEAR FORCES 288.42 - 69.12 = 219.30 kN 219.30 - 438.60 = -219.30 kN -219.30 - 69.12 = -288.42 kN -288.42+ 288.42 = 0 kN
1288.42 kN
288.42 - 69.12 = 219.30 kN
BENDING MOMENT Positive Area = (288.42 + 219.30) kN x ½ x 3.6 m = 913.90 kNm
219.30 - 438.60 = -219.30 kN
Negative Area = (-219.30 -288.42) kN x ½ x 3.6 m = -913.90
-288.42+ 288.42 = 0 kN
-219.30 - 69.12 = -288.42 kN
913.90 kNm
∴ Positive area ≈ Negative area 913.90 kNm + (-913.90) = 0 0 kNm
STRUCTURAL ANALYSIS OF A BUNGALOW
913.90 - 913.90
= 0 kNm
61
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
COLUMN ANALYSIS COLUMN E8
ROOF LEVEL TRIBUTARY AREA
ROOF LEVEL DEAD LOAD
LIVE LOAD
Roof Weight = (1.5 x 7.2) m² x 1.0 kN/m² = 16.20 kN
Roof Weight = (1.5 x 7.2) m² x 0.5 kN/m² = 5.4 kN
Roof Beam = (1.5 + 7.2) m x 1.44 kN/m = 12.53 kN
Total Dead Load = (16.20 + 12.53) kN = 28.73 kN STRUCTURAL ANALYSIS OF A BUNGALOW
62
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
SECOND FLOOR TRIBUTARY AREA
SECOND FLOOR DEAD LOAD
LIVE LOAD
Slab Self Weight = (1.5 x 7.2) m² x 3.6 kN/m² = 38.88 kN
Total Live Load = (1.50 x 7.2) m² x 1.5 kN/m² = 16.20 kN
Beam Self Weight = (1.5 + 7.2) m x 1.44 kN/m + [ (1.5+1.5)m x 1.44 kN/m x ½ ] = 12.53 kN + 2.16 kN = 14.69
Brick Wall Self Weight = 7.2 m x 10 kN/m = 72.00 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
63
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
Column Self Weight = (0.3 x 0.3 x 3.0) m³ x 24 kN/m³ = 6.48 kN
Total Dead Load = (38.88 + 14.69 + 72 + 6.48 )kN = 132.05 kN
FIRST FLOOR TRIBUTARY AREA
STRUCTURAL ANALYSIS OF A BUNGALOW
64
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
FIRST FLOOR DEAD LOAD
LIVE LOAD
Slab Self Weight = (1.5 x 7.2) m² x 3.6 kN/m² = 38.88 kN
Total Live Load = (1.50 x 7.2) m² x 1.5 kN/m² = 16.20 kN
Beam Self Weight = (1.5 + 7.2) m x 1.44 kN/m + [ (1.5+1.5)m x 1.44 kN/m x ½ ] = 12.53 kN + 2.16 kN = 14.69
Brick Wall Self Weight = 7.2 m x 10 kN/m = 72.00 kN
Column Self Weight = (0.3 x 0.3 x 3.0) m³ x 24 kN/m³ = 6.48 kN
Total Dead Load = (38.88 + 14.69 + 72 + 6.48) kN = 132.05 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
65
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
GROUND FLOOR TRIBUTARY AREA
GROUND FLOOR DEAD LOAD
LIVE LOAD
Slab Self Weight = (1.5 x 7.2) m² x 3.6 kN/m² = 38.88 kN
Total Live Load = (1.50 x 7.2) m² x 1.5 kN/m² = 16.20 kN
Beam Self Weight = (1.5 + 7.2) m x 1.44 kN/m + [ (1.5+1.5)m x 1.44 kN/m x ½ ] = 12.53 kN + 2.16 kN = 14.69
Brick Wall Self Weight = 7.2 m x 10 kN/m = 72.00 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
66
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
Column Self Weight = (0.3 x 0.3 x 3.0) m³ x 24 kN/m³ = 6.48 kN
Total Dead Load = (38.88 + 14.69 + 72 + 6.48) kN = 132.05 kN
ULTIMATE LOAD Total Dead Load = (28.73+132.05+132.05+132.05) kN = 424.88 kN Ultimate Dead Load = 424.88 kN x 1.4 = 594.83 kN
Total Live Load = (5.40 + 8.10 + 8.10 + 8.10 ) kN = 29.70 kN Ultimate Live Load = 29.70 x 1.6 = 47.52 kN
Total Ultimate Load = Ultimate dead load + Ultimate live load = (594.83 + 47.52) kN = 642.34 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
67
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
COLUMN ANALYSIS COLUMN G6
ROOF LEVEL TRIBUTARY AREA
ROOF LEVEL DEAD LOAD
LIVE LOAD
Roof Weight = { (2.4+2.1) [ (5.4/2) + 3.6 } m² x 1.0 kN/m² = 28.35 kN
Roof Weight = { (2.4+2.1) [ (5.4/2) + 3.6 } m² x 0.5 kN/m² = 14.18 kN
Roof Beam = { (2.4+2.1) [ (5.4/2) + 3.6 } m x 1.44 kN/m = 40.82 kN Total Dead Load =[ { (2.4+2.1) [ (5.4/2) + 3.6 } + 14.69 ] kN = 69.17 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
68
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
SECOND FLOOR TRIBUTARY AREA
SECOND FLOOR DEAD LOAD
LIVE LOAD
Slab Self Weight = { (2.4+2.1) [ (5.4/2) + 3.6 } m² x 3.6 kN/m² = 102.06 kN
Total Live Load = { (2.4+2.1) [ (5.4/2) + 3.6 } m² x 1.5 kN/m² = 42.53 kN
Beam Self Weight = { (2.4+2.1) [ (5.4/2) + 3.6 } m x 1.44 kN/m + 4.5 m x 1.44 kN/m x ½ = 15.55 kN + 3.24 kN = 18.79 kN Brick Wall Self Weight = 4.5 m x 10 kN/m = 45.00 kN Column Self Weight = (0.3 x 0.3 x 3.0) m³ x 24 kN/m³ = 6.48 kN STRUCTURAL ANALYSIS OF A BUNGALOW
69
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
Total Dead Load = (102.06 + 18.79 + 45.00 + 6.48) kN = 172.33 kN
FIRST FLOOR TRIBUTARY AREA
FIRST FLOOR DEAD LOAD
LIVE LOAD
Slab Self Weight = { (2.4+2.1) [ (5.4/2) + 3.6 } m² x 3.6 kN/m² = 102.06 kN
Total Live Load = { (2.4+2.1) [ (5.4/2) + 3.6 } m² x 1.5 kN/m² = 42.53 kN
Beam Self Weight = { (2.4+2.1) [ (5.4/2) + 3.6 } m x 1.44 kN/m + 4.5 m x 1.44 kN/m x ½ = 15.55 kN + 3.24 kN = 18.79 kN Brick Wall Self Weight = 4.5 m x 10 kN/m = 45.00 kN Column Self Weight = (0.3 x 0.3 x 3.0) m³ x 24 kN/m³ = 6.48 kN STRUCTURAL ANALYSIS OF A BUNGALOW
70
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
Total Dead Load = (102.06 + 18.79 + 45.00 + 6.48) kN = 172.33 kN
GROUND FLOOR TRIBUTARY AREA
GROUND FLOOR DEAD LOAD
Slab Self Weight = { (2.4+2.1) [ (5.4/2) + 3.6 } m² x 3.6 kN/m² = 102.06 kN
LIVE LOAD Total Live Load = { (2.4+2.1) [ (5.4/2) + 3.6 } m² x 1.5 kN/m² = 42.53 kN
Beam Self Weight = { (2.4+2.1) [ (5.4/2) + 3.6 } m x 1.44 kN/m + 4.5 m x 1.44 kN/m x ½ = 15.55 kN + 3.24 kN = 18.79 kN Brick Wall Self Weight = 4.5 m x 10 kN/m = 45.00 kN STRUCTURAL ANALYSIS OF A BUNGALOW
71
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
Column Self Weight = (0.3 x 0.3 x 3.0) m³ x 24 kN/m³ = 6.48 kN
Total Dead Load = (102.06 + 18.79 + 45.00 + 6.48) kN = 172.33 kN
ULTIMATE LOAD Total Dead Load = (69.17+ 172.33 + 172.33 + 172.33) kN = 586.17 kN Ultimate Dead Load = 586.17 kN x 1.4 = 820.64 kN Total Live Load = (14.18 + 42.53 + 42.53 + 42.53) kN = 141.77 kN Ultimate Live Load = 141.77 x 1.6 = 226.83 kN Total Ultimate Load = Ultimate dead load + Ultimate live load = (820.64 + 226.83) kN = 1047.44 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
72
NG ZIEN LOON 0328565 STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
FIRST FLOOR LOAD DISTRIBUTION PLAN
BEAM ANALYSIS BEAM A/5-6 (Uniformly Distributed Load) BEAM 5-A/C (Uniformly Distributed Load and Point Load from Beam B/5-6 & Beam B/4-5)
COLUMN ANALYSIS COLUMN A6 (Perimeter Column) COLUMN C5 (Interior Column)
STRUCTURAL ANALYSIS OF A BUNGALOW
74
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
BEAM ANALYSIS BEAM A/5-6
FIRST FLOOR LOAD DISTRIBUTION PLAN
BEAM A/5-6 CARRIES: Dead Load from beam self weight Dead Load from brick wall self weight Dead Load from slab self weight Live Load from slab
STRUCTURAL ANALYSIS OF A BUNGALOW
: Gridline 5-6 : Gridline 5-6 : Gridline A-B/5-6 : Gridline A-B/5-6
75
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
DEAD LOAD
5 4200
Beam Self Weight = Beam size x Density of reinforced concrete = (0.25 x 0.60) m² x 24 kN/m³ = 3.60 kN/m
3.60 kN/m
Brick Wall Self Weight = Wall height x Wall thickness x Density of brick = (3.00 x 0.15) m² x 19 kN/m³ = 8.55 kN/m
8.55 kN/m
Slab A-B/5-6 Self Weight = Slab thickness x Density of reinforced concrete x Lx/2 = (0.125m x 24 kN/m³) x 3.6/2 = 3 kN/m² x 1.8m = 5.40 kN/m
5.40 kN/m
17.55 kN/m
Total Dead Load For 5-6 = (3.60 + 8.55 + 5.40) kN/m = 17.55 kN/m
LIVE LOAD
5
Ultimate Dead Load = Total dead load x Load factor = 17.55 kN/m x 1.4 = 24.57 kN/m
STRUCTURAL ANALYSIS OF A BUNGALOW
6 4200
Slab A-B/5-6 = Live load (UBBL) x Lx/2 = 1.5 kN/m² x 3.6/2 = 2.70 kN/m
ULTIMATE LOAD
6
2.70 kN/m
5
6 4200
24.57 kN/m
76
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
Ultimate Live Load = Total live load x Load factor = 2.70 kN/m x 1.6 = 4.32 kN/m
4.32 kN/m
28.89 kN/m
Total Ultimate Load For 5-6 = (24.57 + 4.32) kN/m = 28.89 kN/m
REACTION FORCES
5
6 4200
Total Load = 28.89 kN/m x 4.2 m = 121.34 kN By using 6A as reference point, ΣM = 0 0 = M6A1 + (-M6A2) = (R5A x 4.2) - (121.34 x 2.1) = 4.2 R5A - 254.81 4.2 R5A = 254.81 R5A = 60.67 kN
ΣFy = 0 0 = R5A +R6A + (-121.34) 0 = 60.67 + R6A -121.34 R6A = 121.34 - 60.67 = 60.67 kN
2100
M6A1
2100
121.34 kN
M6A2 R5A
R6A
28.89 kN/m
60.67 kN
60.67 kN
SHEAR FORCES 60.67 - 121.34 = -60.67 kN -60.67 + 60.67 = 0 kN
60.67 kN -60.67 + 60.67 = 0kN
60.60 - 121.34 = -60.67 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
77
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
BENDING MOMENT Positive Area = 60.67 kN x 2.1 m x ½ = 63.70 kNm 63.70 kNm Negative Area = -60.67 kN x 2.1 m x ½ = -63.70 kNm
∴ Positive area = Negative area 63.70 kNm + (-63.70 kNm) = 0
STRUCTURAL ANALYSIS OF A BUNGALOW
0 kNm
63.70 - 63.70 = 0 kNm
78
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
BEAM B/5-6
FIRST FLOOR LOAD DISTRIBUTION PLAN
BEAM B/5-6 CARRIES: Dead Load from beam self weight Dead Load from brick wall self weight Dead Load from slab self weight Live Load from slab
STRUCTURAL ANALYSIS OF A BUNGALOW
: Gridline 5-6 : Gridline 5-6 : Gridline A-B/5-6, B-C/5-6 : Gridline A-B/5-6, B-C/5-6
79
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
DEAD LOAD
5 4200
Beam Self Weight = Beam size x Density of reinforced concrete = (0.20 x 0.50) m² x 24 kN/m³ = 2.40 kN/m
2.40 kN/m
Brick Wall Self Weight = Wall height x Wall thickness x Density of brick = (3.00 x 0.15) m² x 19 kN/m³ = 8.55 kN/m
8.55 kN/m
Slab A-B/5-6 Self Weight = Slab thickness x Density of reinforced concrete x Lx/2 = (0.125m x 24 kN/m³) x 3.6/2 = 3 kN/m² x 1.8m = 5.40 kN/m
5.40 kN/m
Slab B-C/5-6 Self Weight = Slab thickness x Density of reinforced concrete x Lx/2 = (0.125m x 24 kN/m³) x 3.6/2 = 3 kN/m² x 1.8m = 5.40 kN/m
5.40 kN/m
21.75 kN/m
Total Dead Load For 5-6 = (2.40 + 8.55 + 5.40 + 5.40) kN/m = 21.75 kN/m
LIVE LOAD Slab A-B/5-6 = Live load (UBBL) x Lx/2 = 1.5 kN/m² x 3.6/2 = 2.70 kN/m
STRUCTURAL ANALYSIS OF A BUNGALOW
6
5
6 4200
2.70 kN/m
80
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
Slab B-C/5-6 = Live load (UBBL) x Lx/2 = 1.5 kN/m² x 3.6/2 = 2.70 kN/m
2.70 kN/m
5.40 kN/m
Total Live Load For 5-6 = (2.70 + 2.70) kN/m = 5.40 kN/m ULTIMATE LOAD Ultimate Dead Load = Total dead load x Load factor = 21.75 kN/m x 1.4 = 30.45 kN/m
Ultimate Live Load = Total live load x Load factor = 5.40 kN/m x 1.6 = 8.64 kN/m
5
6 4200
30.45 kN/m
8.64 kN/m
39.09 kN/m Total Ultimate Load For 5-6 = (30.45 + 8.64) kN/m = 39.09 kN/m
STRUCTURAL ANALYSIS OF A BUNGALOW
81
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
REACTION FORCES
5
6 4200
Total Load = 39.09 kN/m x 4.2 m = 164.18 kN By using 6B as reference point, ΣM = 0 0 = M6B1 + (-M6B2) = (R5B x 4.2) - (164.18 x 2.1) = 4.2 R5B - 344.78 4.2 R5B = 344.78 R5B = 82.09 kN
ΣFy = 0 0 = R5B +R6B + (-164.18) 0 = 82.09 + R6B -164.18 R6B = 164.18 - 82.09 = 82.09 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
2100
M6B1
2100
164.18 kN
M6B2
R5B
R6B
39.09 kN/m
82.09 kN
82.09 kN
82
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
BEAM B/4-5
FIRST FLOOR LOAD DISTRIBUTION PLAN
BEAM B/4-5 CARRIES: Dead Load from beam self weight
: Gridline 4-5
DEAD LOAD
4 1800
Beam Self Weight = Beam size x Density of reinforced concrete = (0.20 x 0.50) m² x 24 kN/m³ = 2.40 kN/m ULTIMATE LOAD Ultimate Dead Load = Total dead load x Load factor = 2.40 kN/m x 1.4 = 3.36 kN/m
STRUCTURAL ANALYSIS OF A BUNGALOW
5 2.40 kN/m
4
5 1800
3.36 kN/m
83
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
REACTION FORCES
4
5 1800
Total Load = 3.36 kN/m x 1.8 m = 6.05 kN By using 5B as reference point, ΣM = 0 0 = M5B1 + (-M5B2) = (R4B x 1.8) - (6.05 x 0.9) = 1.8 R4B - 5.45 1.8 R4B = 5.45 R4B = 3.03 kN
ΣFy = 0 0 = R4B +R5B + (-6.05) 0 = 3.03 + R5B -6.05 R5B = 6.05 - 3.03 = 3.02 kN (≈3.03 kN)
STRUCTURAL ANALYSIS OF A BUNGALOW
900
900
6.05 kN M5B1 M5B2
R4B
R5B
39.09 kN/m
3.03 kN
3.02 kN
84
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
BEAM 5/A-C
FIRST FLOOR LOAD DISTRIBUTION PLAN
BEAM 5/A-C CARRIES: Dead Load from beam self weight Dead Load from brick wall self weight Dead Load from slab self weight Live Load from slab
STRUCTURAL ANALYSIS OF A BUNGALOW
: Gridline A-C : Gridline A-C : Gridline A-B/5-6, A-B/4-5, B-C/5-6 & B-C/4-5 : Gridline A-B/5-6, A-B/4-5, B-C/5-6 & B-C/4-5
85
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
DEAD LOAD Beam Self Weight = Beam size x Density of reinforced concrete = (0.20 x 0.50) m² x 24 kN/m³ = 2.40 kN/m
Brick Wall Self Weight = Wall height x Wall thickness x Density of brick = (3.00 x 0.15) m² x 19 kN/m³ = 8.55 kN/m
Slab A-B/5-6 Self Weight = Slab thickness x Density of reinforced concrete x Lx/2 x 2/3 = (0.125 m x 24 kN/m³) x 3.6/2 x 2/3 = 3 kN/m² x 1.8 m x 2/3 = 3.60 kN/m
Slab A-B/4-5 Self Weight = Slab thickness x Density of reinforced concrete x Lx/2 = (0.125 m x 24 kN/m³) x 1.8/2 = 3 kN/m² x 0.9 m = 2.70 kN/m
Slab B-C/5-6 Self Weight = Slab thickness x Density of reinforced concrete x Lx/2 x 2/3 = (0.125m x 24 kN/m³) x 3.6/2 x 2/3 = 3 kN/m² x 1.8m x 2/3 = 3.60 kN/m
Slab B-C/4-5 Self Weight = Slab thickness x Density of reinforced concrete x Lx/2 = (0.125 m x 24 kN/m³) x 1.8/2 = 3 kN/m² x 0.9 m = 2.70 kN/m STRUCTURAL ANALYSIS OF A BUNGALOW
A
B
C
7200 3600
3600
2.40 kN/m
8.55 kN/m
3.60 kN/m
2.70 kN/m
3.60 kN/m
2.70 kN/m
86
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
Total Dead Load For A-B = (2.40 + 8.55 + 3.60 + 2.70) kN/m = 17.25 kN/m For B-C = (2.40 + 8.55 + 3.60 + 2.70) kN/m = 17.25 kN/m
LIVE LOAD Slab A-B/5-6 = Live load (UBBL) x Lx/2 x 2/3 = 1.5 kN/m² x 3.6/2 x 2/3 = 1.80 kN/m
Slab A-B/4-5 = Live load (UBBL) x Lx/2 = 1.5 kN/m² x 1.8/2 = 1.35 kN/m
17.25 kN/m
A
17.25 kN/m
B
C
7200 3600
3600
1.80 kN/m
1.35 kN/m
Slab B-C/5-6 = Live load (UBBL) x Lx/2 x 2/3 = 1.5 kN/m² x 3.6/2 x 2/3 = 1.80 kN/m
1.80 kN/m
Slab B-C/4-5 = Live load (UBBL) x Lx/2 = 1.5 kN/m² x 1.8/2 = 1.35 kN/m
1.35 kN/m
Total Live Load For A-B = (1.80 + 1.35) kN/m = 3.15 kN/m For B-C = (1.80 + 1.35) kN/m = 3.15 kN/m
STRUCTURAL ANALYSIS OF A BUNGALOW
3.15 kN/m
3.15 kN/m
87
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
ULTIMATE LOAD Ultimate Dead Load For A-B = Total dead load x Load factor = 17.25 kN/m x 1.4 = 24.15 kN/m For B-C = Total dead load x Load factor = 17.25 kN/m x 1.4 = 24.15 kN/m
Ultimate Live Load For A-B = Total live load x Load factor = 3.15 kN/m x 1.6 = 5.04 kN/m For B-C = Total live load x Load factor = 3.15 kN/m x 1.6 = 5.04 kN/m
Total Ultimate Load For A-B = (24.15 + 5.04) kN/m = 29.19 kN/m For B-C = (24.15 + 5.04) kN/m = 29.19 kN/m
A
B
C
7200 3600
3600
24.15 kN/m
24.15 kN/m
5.04 kN/m
5.04 kN/m
29.19 kN/m
29.19 kN/m
85.11 kN Point Load = R5B (from Beam B/5-6) + R5B (from Beam B/4-5) = (82.09 + 3.02) kN = 85.11 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
29.19 kN/m
29.19 kN/m
88
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
REACTION FORCES Total Load For A-B = 29.19 kN/m x 3.6 m = 105.08 kN For B-C = 29.19 kN/m x 3.6 m = 105.08 kN By using 5C as reference point, ΣM = 0 0 = M5C1 + (-M5C2) + (-M5C3) + (-M5C4) = (R5A x 7.2) - (105.08 x 5.4) - (85.11 x 3.6) - (105.8 x 1.8) = 7.2 R5A - 567.43 - 306.40 - 189.14 7.2 R5A = 1062.97 R5A = 147.63 kN
ΣFy = 0 0 = R5A +R5C + (-105.08) + (-85.11) + (-105.08) 0 = 147.63 + R5C - 105.08 - 85.11 - 105.08 R5C = 105.08 + 85.11 + 105.08 - 147.63 = 147.64 kN (≈147.63 kN)
SHEAR FORCES
B
A
C
7200 1800
1800
1800
85.11 kN 105.08 kN 105.08 kN M5C1 M5C2
M5C3
R5C 85.11 kN 29.19 kN/m
29.19 kN/m
147.63 kN
147.63 kN
147.64 kN
147.63 - 105.08 = 42.55kN
42.55 - 85.11 = -42.56kN
BENDING MOMENT Positive Area = (147.63 + 42.55) kN x ½ x 3.6 m = 342.32 kNm
∴ Positive area ≈ Negative area 342.32 kNm + (-342.36 kNm) = -0.04 (≈0)
STRUCTURAL ANALYSIS OF A BUNGALOW
M5C4
R5A
147.63 - 105.08 = 42.55 kN 42.55 - 85.11 = -42.56 kN -42.56 - 105.08 = -147.64 kN -147.64 + 147.64 = 0 kN
Negative Area = (-42.56 - 147.64) kN x ½ x 3.6 m = -342.36 kNm (≈342.32 kNm)
1800
-147.64 + 147.64 = 0kN
-42.56 - 105.08 = -147.64 kN
342.32 kNm
0 kNm
342.32 - 342.35
≈ 0 kNm
89
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
COLUMN ANALYSIS COLUMN A6
ROOF LEVEL TRIBUTARY AREA
ROOF LEVEL DEAD LOAD
LIVE LOAD
Roof Weight = (4.5 x 3.6) m² x 1.0 kN/m² = 6.48 kN
Roof Weight = (4.5 x 3.6) m² x 0.5 kN/m² = 8.10 kN
Roof Beam = (4.5 + 3.6) m x 1.44 kN/m = 11.66 kN
Total Dead Load = (6.48 + 11.66) kN = 18.14 kN STRUCTURAL ANALYSIS OF A BUNGALOW
90
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
SECOND FLOOR TRIBUTARY AREA
SECOND FLOOR DEAD LOAD
LIVE LOAD
Slab Self Weight = (4.5 x 3.6) m² x 3.6 kN/m² = 58.32 kN
Total Live Load = (4.5 x 3.6) m² x 1.5 kN/m² = 24.30 kN
Beam Self Weight = (4.5 + 3.6) m x 1.44 kN/m + 4.5 m x 1.44 kN/m x ½ = 11.66 kN + 3.24 kN = 14.90 kN
Brick Wall Self Weight = 4.5 m x 10 kN/m = 45.00 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
91
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
Column Self Weight = (0.3 x 0.3 x 3.0) m³ x 24 kN/m³ = 6.48 kN
Total Dead Load = (58.32 + 14.90 + 45.00 + 6.48) kN = 124.70 kN
FIRST FLOOR TRIBUTARY AREA
STRUCTURAL ANALYSIS OF A BUNGALOW
92
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
FIRST FLOOR DEAD LOAD
LIVE LOAD
Slab Self Weight = (4.5 x 3.6) m² x 3.6 kN/m² = 58.32 kN
Total Live Load = (4.5 x 3.6) m² x 1.5 kN/m² = 24.30 kN
Beam Self Weight = (4.5 + 3.6) m x 1.44 kN/m + 4.5 m x 1.44 kN/m x ½ = 11.66 kN + 3.24 kN = 14.90 kN
Brick Wall Self Weight = 4.5 m x 10 kN/m + 4.5 m x 10 kN/m x ½ = 45.00 kN + 22.5 kN = 67.50 kN
Column Self Weight = (0.3 x 0.3 x 3.0) m³ x 24 kN/m³ = 6.48 kN
Total Dead Load = (58.32 + 14.90 + 67.50 + 6.48) kN = 147.20 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
93
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
GROUND FLOOR TRIBUTARY AREA
GROUND FLOOR DEAD LOAD
LIVE LOAD
Slab Self Weight = (4.5 x 3.6) m² x 3.6 kN/m² = 58.32 kN
Total Live Load = (4.5 x 3.6) m² x 1.5 kN/m² = 24.30 kN
Beam Self Weight = (4.5 + 3.6) m x 1.44 kN/m + 4.5 m x 1.44 kN/m x ½ = 11.66 kN + 3.24 kN = 14.90 kN
Brick Wall Self Weight = 4.5 m x 10 kN/m + 4.5 m x 10 kN/m x ½ = 45.00 kN + 22.5 kN = 67.50 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
94
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
Column Self Weight = (0.3 x 0.3 x 3.0) m³ x 24 kN/m³ = 6.48 kN
Total Dead Load = (58.32 + 14.90 + 67.50 + 6.48) kN = 147.20 kN
ULTIMATE LOAD Total Dead Load = (27.86 + 124.70 + 147.20 + 147.20) kN = 446.96 kN Ultimate Dead Load = 446.96 kN x 1.4 = 645.74 kN
Total Live Load = (8.10 + 24.30 + 24.30 + 24.30) kN = 81.00 kN Ultimate Live Load = 81.00 x 1.6 = 129.60 kN
Total Ultimate Load = Ultimate dead load + Ultimate live load = (625.74 + 129.60) kN = 755.34 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
95
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
COLUMN ANALYSIS COLUMN C5
ROOF LEVEL TRIBUTARY AREA
ROOF LEVEL DEAD LOAD
LIVE LOAD
Roof Weight = (3.0 x 7.2) m² x 1.0 kN/m² = 21.60 kN
Roof Weight = (3.0 x 7.2) m² x 0.5 kN/m² = 10.80 kN
Roof Beam = (3.0 + 7.2)m x 1.44 kN/m = 14.69 kN Total Dead Load = (21.60 + 14.69) kN = 36.29 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
96
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
SECOND FLOOR TRIBUTARY AREA
SECOND FLOOR DEAD LOAD
LIVE LOAD
Slab Self Weight = (3.0 x 7.2) m² x 3.6 kN/m² = 77.76 kN
Total Live Load = (3.0 x 7.2) m² x 1.5 kN/m² = 32.40 kN
Beam Self Weight = (3.0 + 7.2) m x 1.44 kN/m + (3.0 + 3.0) m x 1.44 kN/m x ½ = 14.69 kN + 4.32 kN = 19.01 kN Column Self Weight = (0.3 x 0.3 x 3.0) m³ x 24 kN/m³ = 6.48 kN Total Dead Load = (77.76 + 19.01 + 6.48) kN = 103.25 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
97
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
FIRST FLOOR TRIBUTARY AREA
FIRST FLOOR DEAD LOAD
LIVE LOAD
Slab Self Weight = (3.0 x 7.2) m² x 3.6 kN/m² = 77.76 kN
Total Live Load = (3.0 x 7.2) m² x 1.5 kN/m² = 32.40 kN
Beam Self Weight = (3.0 + 7.2) m x 1.44 kN/m + (3.0 + 3.0) m x 1.44 kN/m x ½ = 14.69 kN + 4.32 kN = 19.01 kN Brick Wall Self Weight = (2.1 + 7.2) m x 10 kN/m + (2.1 + 2.1) m x 10 kN/m x ½ = 93.00 kN + 21.00 kN = 114.00 kN Column Self Weight = (0.3 x 0.3 x 3.0) m³ x 24 kN/m³ = 6.48 kN STRUCTURAL ANALYSIS OF A BUNGALOW
98
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
Total Dead Load = (77.76 + 19.01 + 114.00 + 6.48) kN = 217.25 kN
GROUND FLOOR TRIBUTARY AREA
GROUND FLOOR DEAD LOAD
LIVE LOAD
Slab Self Weight = (3.0 x 7.2) m² x 3.6 kN/m² = 77.76 kN
Total Live Load = (3.0 x 7.2) m² x 1.5 kN/m² = 32.40 kN
Beam Self Weight = (3.0 + 7.2) m x 1.44 kN/m + (3.0 + 3.0) m x 1.44 kN/m x ½ = 14.69 kN + 4.32 kN = 19.01 kN Brick Wall Self Weight = (2.1 + 7.2) m x 10 kN/m + (2.1 + 2.1) m x 10 kN/m x ½ = 93.00 kN + 21.00 kN = 114.00 kN STRUCTURAL ANALYSIS OF A BUNGALOW
99
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
Column Self Weight = (0.3 x 0.3 x 3.0) m³ x 24 kN/m³ = 6.48 kN
Total Dead Load = (77.76 + 19.01 + 114.00 + 6.48) kN = 217.25 kN
ULTIMATE LOAD Total Dead Load = (36.29 + 103.25 + 217.25 + 217.25) kN = 574.04 kN Ultimate Dead Load = 574.04 kN x 1.4 = 803.66 kN Total Live Load = (10.80 + 32.40 + 32.40 + 32.40) kN = 108..00 kN Ultimate Live Load = 108.00 x 1.6 = 172.80 kN Total Ultimate Load = Ultimate dead load + Ultimate live load = (803.66 + 172.80) kN = 976.46 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
100
NICHOLAS WONG 0328559 STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
FIRST FLOOR LOAD DISTRIBUTION PLAN
BEAM ANALYSIS BEAM A/3-4 (Uniformly Distributed Load) BEAM 4/A-C(Uniformly Distributed Load and Point Load from Beam B/4-5 & Beam B/3-4)
COLUMN ANALYSIS
STRUCTURAL ANALYSIS OF A BUNGALOW
102
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
BEAM ANALYSIS BEAM A/3-4
FIRST FLOOR LOAD DISTRIBUTION PLAN
BEAM A/3-4 CARRIES: Dead Load from beam self weight Dead Load from brick wall self weight Dead Load from slab self weight Live Load from slab
STRUCTURAL ANALYSIS OF A BUNGALOW
: Gridline 3-4 : Gridline 3-4 : Gridline A-B/3-4 : Gridline A-B/3-4
103
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
DEAD LOAD
3
4 3600
Beam Self Weight = Beam size x Density of reinforced concrete = (0.25 x 0.60) m² x 24 kN/m³ = 3.60 kN/m
3.60 kN/m
8.55 kN/m Brick Wall Self Weight = Wall height x Wall thickness x Density of brick = (3.00 x 0.15) m² x 19 kN/m³ = 8.55 kN/m
12.15 kN/m
Total Dead Load For 3-4 = (3.60 + 8.55) kN/m = 12.15 kN/m
ULTIMATE LOAD Ultimate Dead Load = Total dead load x Load factor = 12.15 kN/m x 1.4 = 17.01 kN/m
3
4 3600
17.01 kN/m
Total Ultimate Load For 3-4 = 17.01 kN/m
STRUCTURAL ANALYSIS OF A BUNGALOW
104
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
REACTION FORCES
3
4 3600
Total Load = 24.57 kN/m x 3.6 m = 88.452 kN By using 6A as reference point, ΣM = 0 0 = M3A1 + (-M3A2) = (R3A x 3.6) - (88.452 x 1.8) = 3.6 R3A - 159.2136 -3.6 R3A = -159.213 R3A = 44.226kN
1800
M3A1
88.452 kN
M3A2 R3A
R4A
28.89 kN/m
ΣFy = 0 0 = R3A +R4A + (-44.226) 0 = 44.226+ R4A -88.452 R6A = 88.452-44.226 = 44.226 kN
44.226kN
SHEAR FORCES
44.226 kN
44.226-88.452 = -44.226 kN
1800
44.226kN
-44026 +44.226 = 0kN
-44.226+44.226 = 0 kN
44.226-88.452 = -44.226 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
105
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
BENDING MOMENT Positive Area = 44.226 kN x 1.8 m x ½ = 39.803 kNm 44.226 kNm
Negative Area = -44.226 kN x 1.8 m x ½ = -39.803 kNm
∴ Positive area = Negative area 39.803 kNm + (-39.803kNm) = 0
STRUCTURAL ANALYSIS OF A BUNGALOW
0 kNm
44.226-44.226 = 0 kNm
106
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
BEAM A/3-4
FIRST FLOOR LOAD DISTRIBUTION PLAN
BEAM B/4-5 CARRIES: Dead Load from beam self weight
: Gridline 4-5
DEAD LOAD
4 1800
Beam Self Weight = Beam size x Density of reinforced concrete = (0.20 x 0.50) m² x 24 kN/m³ = 2.40 kN/m ULTIMATE LOAD Ultimate Dead Load = Total dead load x Load factor = 2.40 kN/m x 1.4 = 3.36 kN/m
STRUCTURAL ANALYSIS OF A BUNGALOW
5 2.40 kN/m
4
5 1800
3.36 kN/m
107
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
DEAD LOAD
4 1800
Beam Self Weight = Beam size x Density of reinforced concrete = (0.20 x 0.50) m² x 24 kN/m³ = 2.40 kN/m ULTIMATE LOAD Ultimate Dead Load = Total dead load x Load factor = 2.40 kN/m x 1.4 = 3.36 kN/m
STRUCTURAL ANALYSIS OF A BUNGALOW
5 2.40 kN/m
4
5 1800
3.36 kN/m
108
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
REACTION FORCES
4
5 1800
Total Load = 3.36 kN/m x 1.8 m = 6.05 kN By using 5B as reference point, ΣM = 0 0 = M5B1 + (-M5B2) = (R4B x 1.8) - (6.05 x 0.9) = 1.8 R4B - 5.45 1.8 R4B = 5.45 R4B = 3.03 kN
ΣFy = 0 0 = R4B +R5B + (-6.05) 0 = 3.03 + R5B -6.05 R5B = 6.05 - 3.03 = 3.02 kN (≈3.03 kN)
STRUCTURAL ANALYSIS OF A BUNGALOW
900
900
6.05 kN M5B1 M5B2
R4B
R5B
39.09 kN/m
3.03 kN
3.02 kN
109
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
BEAM A/3-4
FIRST FLOOR LOAD DISTRIBUTION PLAN
BEAM B/3-4 CARRIES: Dead Load from beam self weight Dead Load from brick wall self weight Dead Load from slab self weight Live Load from slab
STRUCTURAL ANALYSIS OF A BUNGALOW
: Gridline 3-4 : Gridline 3-4 : Gridline B-C/3-4 : Gridline B-C/3-4
110
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
DEAD LOAD
3 3600
Beam Self Weight = Beam size x Density of reinforced concrete = (0.25 x 0.60) m² x 24 kN/m³ = 3.60 kN/m
3.60 kN/m
Brick Wall Self Weight = Wall height x Wall thickness x Density of brick = (3.00 x 0.15) m² x 19 kN/m³ = 8.55 kN/m
8.55 kN/m
Slab B-C/3-4 Self Weight = Slab thickness x Density of reinforced concrete x Lx/2 = (0.125m x 24 kN/m³) x 3.6/2 = 3 kN/m² x 1.8m = 5.40 kN/m
5.40 kN/m
17.55 kN/m
Total Dead Load For 3-4 = (3.60 + 8.55 + 5.40) kN/m = 17.55 kN/m
LIVE LOAD
3
Ultimate Dead Load = Total dead load x Load factor = 17.55 kN/m x 1.4 = 24.57 kN/m
STRUCTURAL ANALYSIS OF A BUNGALOW
4 3600
Slab B-C/3-4 = Live load (UBBL) x Lx/2 = 1.5 kN/m² x 3.6/2 = 2.70 kN/m
ULTIMATE LOAD
4
2.70 kN/m
3
4 3600
24.57 kN/m
111
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
Ultimate Live Load = Total live load x Load factor = 2.70 kN/m x 1.6 = 4.32 kN/m
4.32 kN/m
28.89 kN/m Total Ultimate Load For 3-4 = (24.57 + 4.32) kN/m = 28.89 kN/m
STRUCTURAL ANALYSIS OF A BUNGALOW
112
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
REACTION FORCES
3
4 3600
Total Load = 28.89 kN/m x 3.6 m = 104.004 kN By using 4A as reference point, ΣM = 0 0 = M3B1 + (-M3B2) = (R3B x 3.6) - (104.004 x 1.8) = 3.6 R3B - 187.2072 -3.6 R3B = -187.2072 R3B = 52.002 kN
ΣFy = 0 0 = R3B +R4B + (-104.004) 0 = 52.002+ R4B -104.004 R4B = 104.004-52.002 = 52.002 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
1800
M3B1
1800
104.004 kN
M3B2 R3B
R4B
28.89 kN/m
52.002 kN
52.002kN
113
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
BEAM 4/A-C
FIRST FLOOR LOAD DISTRIBUTION PLAN
BEAM 4/A-C CARRIES: Dead Load from beam self weight Dead Load from brick wall self weight Dead Load from slab self weight Live Load from slab
STRUCTURAL ANALYSIS OF A BUNGALOW
: Gridline 3-4 : Gridline 3-4 : Gridline A-B/4-5 , B-C 4-5, B-C/3-4 : Gridline A-B/4-5 , B-C 4-5, B-C/3-4
114
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
DEAD LOAD Beam Self Weight = Beam size x Density of reinforced concrete = (0.25 x 0.60) m² x 24 kN/m³ = 3.60 kN/m
Brick Wall Self Weight = Wall height x Wall thickness x Density of brick = (3.00 x 0.15) m² x 19 kN/m³ = 8.55 kN/m
Slab A-B/4-5 Self Weight = Slab thickness x Density of reinforced concrete x Lx/2 = (0.125m x 24 kN/m³) x 1.8/2 = 3 kN/m² x 0.9m = 2.70 kN/m
A
B 7200 3600
3600
3.6 kN/m
8.55 kN/m
2.70 kN/m
Slab B-C/4-5 Self Weight = Slab thickness x Density of reinforced concrete x Lx/2 = (0.125m x 24 kN/m³) x 1.8/2 = 3 kN/m² x 0.9m = 2.70 kN/m
2.70 kN/m
Slab B-C/3-4 Self Weight = Slab thickness x Density of reinforced concrete x Lx/2 = (0.125m x 24 kN/m³) x 3.6/2 = 3 kN/m² x 0.9m = 5.40 kN/m
Total Dead Load For A-B = (3.60+8.55+2.7) kN/m = 14.85 kN/m
C
5.40 kN/m
14.85 kN/m
20.25 kN/m
For B-C = (3.60+8.55+2.7+5.40) kN/m = 20.25 kN/m STRUCTURAL ANALYSIS OF A BUNGALOW
115
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
LIVE LOAD Slab A-B/4-5 = Live load (UBBL) x Lx/2 = 1.5 kN/m² x 1.8/2 = 1.35 kN/m
A
B 7200 3600
1.35 kN/m
Slab B-C /3-4 = Live load (UBBL) x Lx/2 = 1.5 kN/m² x 3.6/2 = 2.70 kN/m
STRUCTURAL ANALYSIS OF A BUNGALOW
3600
1.35 kN/m
Slab B-C/4-5 = Live load (UBBL) x Lx/2 = 1.5 kN/m² x 1.8/2 = 1.35 kN/m
Total Live Load For A-B = 1.35 kN/m For B-C = (2.70 + 1.35) kN/m = 4.05 N/m
C
2.70 kN/m
1.35 kN/m
4.05 kN/m
116
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
ULTIMATE LOAD Ultimate Dead Load For A-B = Total dead load x Load factor = 14.85 kN/m x 1.4 = 20.79 kN/m For B-C = Total dead load x Load factor = 20.25 kN/m x 1.4 = 28.35 kN/m
Ultimate Live Load For A-B = Total live load x Load factor = 1.35 kN/m x 1.6 = 2.16 kN/m For B-C = Total live load x Load factor = 4.05 kN/m x 1.6 = 6.48 kN/m
Total Ultimate Load For A-B = (20.79+2.16) kN/m = 22.95 kN/m For B-C = (28.35+6.48) kN/m = 34.83 kN/m
A
B
C
7200 3600
3600
24.15 kN/m
24.15 kN/m
2.16 kN/m
6.48kN/m
22.95kN/m
34.83 kN/m
55.022 kN Point Load = R5B (from Beam B/5-6) + R5B (from Beam B/4-5) = (52.002 + 3.02) kN = 55.022 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
22.95kN/m
34.83 kN/m
117
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
REACTION FORCES Total Load = 28.89 kN/m x 7.2 m = 208.01 kN By using 4C as reference point, ΣM = 0 0 = M4A1 + (-M4A2) = (R4A x 7.2) - (263.03 x3.6) = 7.2 R4A - 946.91 -7.2 R4A = -946.91 R4A = 131.51 kN
ΣFy = 0 0 = R4A +R4C + (-104.004) 0 = 52.002+ R4C -104.004 R4A = 104.004-52.002 = 52.002 kN
A
C 7200 3600
3600
263.03 kN
M4A1
M4A2 R4A
R4C 55.022kN 28.89 kN/m
131.51kN
131.51 kN
SHEAR FORCES 131.51 kN 131.51-104.00 = 27.51kN 27.51-55.02 = -27.51kN -27.51-104.00= -131.51 kN -131.51 + 131.51 = 0 kN
131.51-104.00 = 27.51kN
-11.51+131.51 = 0kN
27.51-55.02
=
STRUCTURAL ANALYSIS OF A BUNGALOW
--27.51kN
-27.51-104.00 = -131.51 kN
118
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
BENDING MOMENT Positive Area = (131.51+27.51) kN x 3.6 m x ½ = 329.58 kNm 329.58 kNm
Negative Area = (-131.51-27.51)kN x 3.6 m x ½ = -329.58 kNm
∴ Positive area = Negative area 329.58 kNm + (-329.58kNm) = 0
STRUCTURAL ANALYSIS OF A BUNGALOW
0 kNm
329.58-329.58 = 0 kNm
119
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
COLUMN ANALYSIS COLUMN A4
ROOF LEVEL TRIBUTARY AREA
ROOF LEVEL DEAD LOAD
LIVE LOAD
Roof Weight = (2.7 x 3.6) m² x 1.0 kN/m² = 9.72 kN
Roof Weight = (2.7x 3.6) m² x 0.5 kN/m² = 4.86 kN
Roof Beam = (2.7 + 3.6) m x 1.44 kN/m = 6.3 kN
Total Dead Load = (9.72+6.3) kN = 16.02 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
120
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
COLUMN ANALYSIS COLUMN A4
SECOND FLOOR
SECOND FLOOR TRIBUTARY AREA
DEAD LOAD Slab Self Weight = (0.9 x 3.6) m² x 3.6 kN/m² = 11.66 kN
Beam Self Weight = (0.9 + 3.6) m x 1.44 kN/m + 0.9 m x 1.44 kN/m x ½ = 6.48 kN + 1.3 kN = 7.78 kN
Brick Wall Self Weight = 0.9 m x 10 kN/m = 9 kN STRUCTURAL ANALYSIS OF A BUNGALOW
LIVE LOAD Total Live Load = (0.9 x 3.6) m² x 1.5 kN/m² = 4.86 kN Column Self Weight = (0.3 x 0.3 x 3.0) m³ x 24 kN/m³ = 6.48 kN
Total Dead Load = (11.66 + 7.78 + 9+ 6.48) kN = 34.92kN
121
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
COLUMN ANALYSIS COLUMN A4
FIRST FLOOR
FIRST FLOOR TRIBUTARY AREA
DEAD LOAD
LIVE LOAD
Slab Self Weight = (0.9 x 3.6) m² x 3.6 kN/m² = 11.66 kN
Total Live Load = (0.9 x 3.6) m² x 1.5 kN/m² = 4.86 kN
Beam Self Weight = (0.9 + 3.6) m x 1.44 kN/m + 0.9 m x 1.44 kN/m x ½ = 6.48 kN + 1.3 kN = 7.78 kN
Brick Wall Self Weight = 0.9 m x 10 kN/m + 0.9 m x 10 kN/m x ½ = 13.5 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
Column Self Weight = (0.3 x 0.3 x 3.0) m³ x 24 kN/m³ = 6.48 kN
Total Dead Load = (11.66 + 7.78 + 13.5+ 6.48) kN = 39.42 kN
122
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
COLUMN ANALYSIS COLUMN A4
GROUND FLOOR TRIBUTARY AREA
GROUND FLOOR DEAD LOAD
LIVE LOAD
Slab Self Weight = (1.8x 3.6) m² x 3.6 kN/m² = 23.32 kN
Total Live Load = (1.8 x 3.6) m² x 1.5 kN/m² = 9.72 kN
Beam Self Weight = (1.8+ 3.6) m x 1.44 kN/m + 1.8m x 1.44 kN/m x ½ = 7.77 kN + 1.3 kN = 9.07 kN
Column Self Weight = (0.3 x 0.3 x 3.0) m³ x 24 kN/m³ = 6.48 kN Total Dead Load = (23.32+9.07+27+ 6.48) kN = 65.87 kN
Brick Wall Self Weight = 1.8 m x 10 kN/m +1.8 m x 10 kN/m x ½ = 27 kN STRUCTURAL ANALYSIS OF A BUNGALOW
123
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
COLUMN ANALYSIS ULTIMATE LOAD Total Dead Load = (16.02+34.92+39.42+65.87) kN = 156.23 kN Ultimate Dead Load = 156.23 kN x 1.4 = 162.64 kN
Total Live Load = (4.86+4.86+4.86+9.72) kN = 24.3kN Ultimate Live Load = 24.3 x 1.6 = 30.13 kN
Total Ultimate Load = Ultimate dead load + Ultimate live load = (162.64+30.13) kN = 192.77 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
124
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
COLUMN ANALYSIS COLUMN C5
ROOF LEVEL TRIBUTARY AREA
ROOF LEVEL DEAD LOAD
LIVE LOAD
Roof Weight = (0.9 x 7.2) m² x 1.0 kN/m² = 6.48 kN
Roof Weight = (0.9 x 7.2) m² x 0.5 kN/m² = 3.24 kN
Roof Beam = (0.9 + 7.2) m x 1.44 kN/m = 11.664 kN
Total Dead Load = (6.48+11.664) kN = 18.144 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
125
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
COLUMN ANALYSIS COLUMN C5
SECOND FLOOR DEAD LOAD Slab Self Weight = (0.9 x 7.2 m² x 3.6 kN/m² = 23.33 kN
Beam Self Weight = (0.9 + 7.2) m x 1.44 kN/m + 0.9 m x 1.44 kN/m x ½ = 11.66 kN + 1.3 kN = 12.96 kN
Brick Wall Self Weight = 0.9 m x 10 kN/m = 9 kN STRUCTURAL ANALYSIS OF A BUNGALOW
LIVE LOAD Total Live Load = (0.9 x 7.2) m² x 1.5 kN/m² = 9.72 kN Column Self Weight = (0.3 x 0.3 x 3.0) m³ x 24 kN/m³ = 6.48 kN
Total Dead Load = (23.33 + 12.96 + 9+ 6.48) kN = 51.77 kN
126
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
COLUMN ANALYSIS COLUMN A4
FIRST FLOOR DEAD LOAD
FIRST FLOOR TRIBUTARY AREA
Slab Self Weight = (2.7x 7.2) m² x 3.6 kN/m² = 69.98 kN
Beam Self Weight = (2.7+ 7.2) m x 1.44 kN/m + 2.7m x 1.44 kN/m x ½ = 14.25 kN + 3.88 kN =18.13 kN
Brick Wall Self Weight =2.7 m x 10 kN/m + 2.7 m x 10 kN/m x ½ = 40.5 kN STRUCTURAL ANALYSIS OF A BUNGALOW
LIVE LOAD Total Live Load = (2.7 x 7.2) m² x 1.5 kN/m² = 29.16 kN Column Self Weight = (0.3 x 0.3 x 3.0) m³ x 24 kN/m³ = 6.48 kN
Total Dead Load = (69.98+18.13+40.5+6.48) kN = 135.09 kN
127
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
COLUMN ANALYSIS COLUMN A4
GROUND FLOOR
GROUND FLOOR TRIBUTARY AREA
DEAD LOAD Slab Self Weight = (2.7x 7.2) m² x 3.6 kN/m² = 69.98 kN
Beam Self Weight = (2.7+ 7.2) m x 1.44 kN/m + 2.7m x 1.44 kN/m x ½ = 14.25 kN + 3.88 kN =18.13 kN
Brick Wall Self Weight =2.7 m x 10 kN/m + 2.7 m x 10 kN/m x ½ = 40.5 kN STRUCTURAL ANALYSIS OF A BUNGALOW
LIVE LOAD Total Live Load = (2.7 x 7.2) m² x 1.5 kN/m² = 29.16 kN Column Self Weight = (0.3 x 0.3 x 3.0) m³ x 24 kN/m³ = 6.48 kN
Total Dead Load = (69.98+18.13+40.5+6.48) kN = 135.09 kN
128
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
COLUMN ANALYSIS COLUMN A4 ULTIMATE LOAD Total Dead Load = (18.144+51.77+135.09+135.09) kN = 340.1 kN Ultimate Dead Load = 340.1 kN x 1.4 = 476.14 kN
Total Live Load = (3.24+9.72+29.16+29.16) kN = 71.28kN Ultimate Live Load = 71.28 x 1.6 = 114.05 kN
Total Ultimate Load = Ultimate dead load + Ultimate live load = (476.14+114.05) kN = 590.19 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
129
RAEMI SAFRI 0328385 STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
FIRST FLOOR LOAD DISTRIBUTION PLAN
BEAM ANALYSIS BEAM A/6-8 (Uniformly Distributed Load) BEAM A-C/8 (Uniformly Distributed Load and Point Load from Beam B/6-8)
COLUMN ANALYSIS COLUMN A8 (Perimeter Column) COLUMN C6 (Interior Column)
STRUCTURAL ANALYSIS OF A BUNGALOW
131
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
BEAM ANALYSIS BEAM A/6-8
FIRST FLOOR LOAD DISTRIBUTION PLAN
BEAM A/6-8 CARRIES: Dead Load from beam self weight Dead Load from brick wall self weight Dead Load from slab self weight Live Load from slab
STRUCTURAL ANALYSIS OF A BUNGALOW
: Gridline 6-8 : Gridline 6-8 : Gridline A-B/6-8 : Gridline A-B/6-8
132
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
DEAD LOAD
6 4800
Beam Self Weight = Beam size x Density of reinforced concrete = (0.25 x 0.60) m² x 24 kN/m³ = 3.60 kN/m
3.60 kN/m
Brick Wall Self Weight = Wall height x Wall thickness x Density of brick = (3.00 x 0.15) m² x 19 kN/m³ = 8.55 kN/m
8.55 kN/m
Slab A-B/6-8 Self Weight = Slab thickness x Density of reinforced concrete x Lx/2 = (0.125m x 24 kN/m³) x 3.6/2 = 3 kN/m² x 1.8m = 5.40 kN/m
5.40 kN/m
17.55 kN/m
Total Dead Load For 6-8 = (3.60 + 8.55 + 5.40) kN/m = 17.55 kN/m
LIVE LOAD
6
Ultimate Dead Load = Total dead load x Load factor = 17.55 kN/m x 1.4 = 24.57 kN/m
STRUCTURAL ANALYSIS OF A BUNGALOW
8 4800
Slab A-B/5-6 = Live load (UBBL) x Lx/2 = 1.5 kN/m² x 3.6/2 = 2.70 kN/m
ULTIMATE LOAD
8
2.70 kN/m
6
8 4800
24.57 kN/m
133
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
Ultimate Live Load = Total live load x Load factor = 2.70 kN/m x 1.6 = 4.32 kN/m
4.32 kN/m
28.89 kN/m
Total Ultimate Load For 6-8 = (24.57 + 4.32) kN/m = 28.89 kN/m
REACTION FORCES
6
8 4800
Total Load = 28.89 kN/m x 4.8 m = 138.67 kN By using 8A as reference point, ΣM = 0 0 = M8A1 + (-M8A2) = (R6A x 4.8) - (138.67 x 2.4) = 4.8 R6A - 332.81 4.8 R6A = 332.81 R6A = 69.34 kN
ΣFy = 0 0 = R6A +R8A + (138.67) 0 = 69.34 + R8A -138.67 R8A = 138.67 - 69.34 = 69.33 (≈69.34 kN)
2400
M8A1
2400
138.67
M8A2 R6A
R8A
28.89 kN/m
69.34 kN
69.33 kN
SHEAR FORCES 69.34 - 138.67 = -69.33 kN -69.33 + 69.33 = 0 kN
69.34 kN -69.33 + 69.33 = 0kN
69.34 - 138.67 = -69.33 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
134
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
BENDING MOMENT Positive Area = 69.34 kN x 2.4 m x ½ = 83.21 kNm 83.21 kNm Negative Area = -69.33 kN x 2.4 m x ½ = -83.20 kNm
∴ Positive area = Negative area 83.21 kNm + (-83.20 kNm) = 0.1 (≈0)
STRUCTURAL ANALYSIS OF A BUNGALOW
0 kNm
83.21 - 83.20
≈ 0 kNm
135
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
BEAM B/6-8
FIRST FLOOR LOAD DISTRIBUTION PLAN
BEAM B/6-8 CARRIES: Dead Load from beam self weight Dead Load from brick wall self weight Dead Load from slab self weight Live Load from slab
STRUCTURAL ANALYSIS OF A BUNGALOW
: Gridline 6-8 : Gridline 6-8 : Gridline A-B/6-8, B-C/6-8 : Gridline A-B/6-8, B-C/6-8
136
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
DEAD LOAD
6 4800
Beam Self Weight = Beam size x Density of reinforced concrete = (0.20 x 0.50) m² x 24 kN/m³ = 2.40 kN/m
2.40 kN/m
Brick Wall Self Weight = Wall height x Wall thickness x Density of brick = (3.00 x 0.15) m² x 19 kN/m³ = 8.55 kN/m
8.55 kN/m
Slab A-B/6-8 Self Weight = Slab thickness x Density of reinforced concrete x Lx/2 = (0.125m x 24 kN/m³) x 3.6/2 = 3 kN/m² x 1.8m = 5.40 kN/m
5.40 kN/m
Slab B-C/6-8 Self Weight = Slab thickness x Density of reinforced concrete x Lx/2 = (0.125m x 24 kN/m³) x 3.6/2 = 3 kN/m² x 1.8m = 5.40 kN/m
5.40 kN/m
21.75 kN/m
Total Dead Load For 6-8 = (2.40 + 8.55 + 5.40 + 5.40) kN/m = 21.75 kN/m
LIVE LOAD Slab A-B/6-8 = Live load (UBBL) x Lx/2 = 1.5 kN/m² x 3.6/2 = 2.70 kN/m
STRUCTURAL ANALYSIS OF A BUNGALOW
8
6
8 4200
2.70 kN/m
137
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
Slab B-C/6-8 = Live load (UBBL) x Lx/2 = 1.5 kN/m² x 3.6/2 = 2.70 kN/m
2.70 kN/m
5.40 kN/m
Total Live Load For 6-8 = (2.70 + 2.70) kN/m = 5.40 kN/m ULTIMATE LOAD Ultimate Dead Load = Total dead load x Load factor = 21.75 kN/m x 1.4 = 30.45 kN/m
Ultimate Live Load = Total live load x Load factor = 5.40 kN/m x 1.6 = 8.64 kN/m
6
8 4800
30.45 kN/m
8.64 kN/m
39.09 kN/m Total Ultimate Load For 5-6 = (30.45 + 8.64) kN/m = 39.09 kN/m
STRUCTURAL ANALYSIS OF A BUNGALOW
138
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
REACTION FORCES
6
8 4800
Total Load = 39.09 kN/m x 4.8 m = 187.63 kN
2400
187.63 kN
By using 8b as reference point; ΣM = 0 0 = M8b1 + (-M8b2) = (R6b x 4.8) - (187.63 x 2.4) = 4.8 R6b - 450.31 4.8 R6b = 450.31 R6b = 93.81 kN
ΣFy = 0 0 = R6b +R8b + (-187.63) 0 = 93.81 + R8b -187.63 R8b = 187.63 - 93.81 = 93.82 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
2400
M8b1 M8b2
R6b
R8b
187.63 kN/m
93.81 kN
93.82 kN
139
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
BEAM 8/A-C
FIRST FLOOR LOAD DISTRIBUTION PLAN
BEAM 8/A-C CARRIES: Dead Load from beam self weight Dead Load from brick wall self weight Dead Load from slab self weight Live Load from slab
STRUCTURAL ANALYSIS OF A BUNGALOW
: Gridline A-C : Gridline A-C : Gridline A-B/6-8 & B-C/6-8 : Gridline A-B/6-8 & B-C/6-8
140
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
DEAD LOAD Beam Self Weight = Beam size x Density of reinforced concrete = (0.25 x 0.60) m² x 24 kN/m³ = 3.60 kN/m
Brick Wall Self Weight = Wall height x Wall thickness x Density of brick = (3.00 x 0.15) m² x 19 kN/m³ = 8.55 kN/m
Slab A-B/6-8 Self Weight = Slab thickness x Density of reinforced concrete x Lx/2 x 2/3 = (0.125 m x 24 kN/m³) x 3.6/2 x 2/3 = 3 kN/m² x 1.8 m x 2/3 = 3.60 kN/m
A
B 7200 3600
3600
3.60 kN/m
8.55 kN/m
3.60 kN/m
Slab B-C/7-8 Self Weight = Slab thickness x Density of reinforced concrete x Lx/2 x 2/3 = (0.125m x 24 kN/m³) x 3.6/2 x 2/3 = 3 kN/m² x 1.8m x 2/3 = 3.60 kN/m
Total Dead Load For A-B = (3.60 + 8.55 + 3.60) kN/m = 15.75 kN/m For B-C = (3.60 + 8.55 + 3.60) kN/m = 15.75 kN/m
STRUCTURAL ANALYSIS OF A BUNGALOW
C
3.60 kN/m
15.75 kN/m
15.75 kN/m
141
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
LIVE LOAD Slab A-B/6-8 = Live load (UBBL) x Lx/2 x 2/3 = 1.5 kN/m² x 3.6/2 x 2/3 = 1.80 kN/m
A
B 7200 3600
STRUCTURAL ANALYSIS OF A BUNGALOW
3600
1.80 kN/m
1.80 kN/m
Slab B-C/6-8 = Live load (UBBL) x Lx/2 x 2/3 = 1.5 kN/m² x 3.6/2 x 2/3 = 1.80 kN/m
Total Live Load For A-B = 1.80 kN/m For B-C = 1.80 kN/m
C
1.80 kN/m
1.80 kN/m
142
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
ULTIMATE LOAD Ultimate Dead Load For A-B = Total dead load x Load factor = 15.75 kN/m x 1.4 = 22.05 kN/m For B-C = Total dead load x Load factor = 15.75 kN/m x 1.4 = 22.05 kN/m
Ultimate Live Load For A-B = Total live load x Load factor = 1.80 kN/m x 1.6 = 2.88 kN/m For B-C = Total live load x Load factor = 1.80 kN/m x 1.6 = 2.88 kN/m
Total Ultimate Load For A-B = (22.05 + 2.88) kN/m = 24.93 kN/m For B-C = (22.05 + 2.88) kN/m = 24.93 kN/m
A
B
C
7200 3600
3600
22.05 kN/m
22.05 kN/m
2.88 kN/m
2.88 kN/m
24.93 kN/m
24.93 kN/m
93.82 kN Point Load = R8b = 93.82 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
24.93 kN/m
24.93 kN/m
143
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
REACTION FORCES Total Load For A-B = 24.93 kN/m x 3.6 m = 89.75 kN For B-C = 24.93 kN/m x 3.6 m = 89.75 kN
B
A
C
7200 1800
1800
1800
1800
93.82 kN 89.75 kN 89.75 kN M8c1
By using 8c as reference point, ΣM = 0 0 = M8c1 + (-M8c2) + (-M8c3) + (-M8c4) = (R8a x 7.2) - (89.75 x 5.4) - (93.82 x 3.6) - (89.75 x 1.8) = 7.2 R5a - 484.65 - 337.75 - 161.55 7.2 R8a = 983.95 R8a = 136.66 kN
ΣFy = 0 0 = R8a +R8c + (-89.75) + (-93.82) + (-89.75) 0 = 136.66 + Rb - 89.75 - 93.82 - 89.75 R8c = 89.75 + 93.82 + 89.75 - 136.66 = 136.66 kN
M8c2
M8c3
M8c4
R8a
R8c 93.82 kN 24.93 kN/m
24.93 kN/m
136.66 kN
136.66 kN SHEAR FORCES 136.66 - 89.75 = 46.91 kN 46.91 - 93.82 = -46.91 kN -46.91 - 89.75 = -136.66 kN -136.66 + 136.66 = 0 kN
136.66 kN
136.66 - 89.75 = 46.91kN
46.91 - 93.82 = -46.91kN
BENDING MOMENT Positive Area = (136.66 + 46.91) kN x ½ x 3.6 m = 221.01 kNm
-136.66 + 136.66 = 0kN
-46.91 - 89.75 = -136.66 kN
221.01 kNm
Negative Area = (-46.91 - 136.66) kN x ½ x 3.6 m = -221.01 kNm ∴ Positive area = Negative area 0 STRUCTURAL ANALYSIS OF A BUNGALOW
0 kNm
221.01 - 221.01
= 0 kNm
144
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
COLUMN ANALYSIS COLUMN A8
ROOF LEVEL TRIBUTARY AREA
ROOF LEVEL DEAD LOAD
LIVE LOAD
Roof Weight = (2.4 x 3.6) m² x 1.0 kN/m² = 8.64 kN
Roof Weight = (2.4 x 3.6) m² x 0.5 kN/m² = 4.32 kN
Roof Beam = (2.4 + 3.6) m x 1.44 kN/m = 8.64 kN
Total Dead Load = (8.64 + 8.64) kN = 17.28 kN STRUCTURAL ANALYSIS OF A BUNGALOW
145
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
SECOND FLOOR TRIBUTARY AREA
SECOND FLOOR DEAD LOAD
LIVE LOAD
Slab Self Weight = (2.4 x 3.6) m² x 3.6 kN/m² = 31.10 kN
Total Live Load = (2.4 x 3.6) m² x 1.5 kN/m² = 12.96 kN
Beam Self Weight = (2.4 + 3.6) m x 1.44 kN/m + 2.4 m x 1.44 kN/m x ½ = 8.64 kN + 1.73 kN = 10.37 kN
Brick Wall Self Weight = (2.4 + 3.6) x 10 kN/m = 60 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
146
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
Column Self Weight = (0.3 x 0.3 x 3.0) m³ x 24 kN/m³ = 6.48 kN
Total Dead Load = (31.10 + 10.37 + 60 + 6.48) kN = 107.95 kN
FIRST FLOOR TRIBUTARY AREA
STRUCTURAL ANALYSIS OF A BUNGALOW
147
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
FIRST FLOOR DEAD LOAD
LIVE LOAD
Slab Self Weight = (2.4 x 3.6) m² x 3.6 kN/m² = 31.10 kN
Total Live Load = (2.4 x 3.6) m² x 1.5 kN/m² = 12.96 kN
Beam Self Weight = (2.4 + 3.6) m x 1.44 kN/m + 2.4 m x 1.44 kN/m x ½ = 8.64 kN + 1.73 kN = 10.37 kN
Brick Wall Self Weight = (2.4+3.6) m x 10 kN/m + 2.4 x 10 kN/m x ½ = 72 kN
Column Self Weight = (0.3 x 0.3 x 3.0) m³ x 24 kN/m³ = 6.48 kN
Total Dead Load = (31.10 + 10.37 + 72 + 6.48) kN = 119.95 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
148
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
GROUND FLOOR TRIBUTARY AREA
GROUND FLOOR DEAD LOAD
LIVE LOAD
Slab Self Weight = (2.4 x 3.6) m² x 3.6 kN/m² = 31.10 kN
Total Live Load = (2.4 x 3.6) m² x 1.5 kN/m² = 12.96 kN
Beam Self Weight = (2.4 + 3.6) m x 1.44 kN/m + 2.4 m x 1.44 kN/m x ½ = 8.64 kN + 1.73 kN = 10.37 kN
Brick Wall Self Weight = (2.4+3.6) m x 10 kN/m + 2.4 x 10 kN/m x ½ = 72 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
149
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
Column Self Weight = (0.3 x 0.3 x 3.0) m³ x 24 kN/m³ = 6.48 kN
Total Dead Load = (31.10 + 10.37 + 72 + 6.48) kN = 119.95 kN
ULTIMATE LOAD Total Dead Load = (17.28 + 107.95 + 119.95 + 119.95) kN = 365.13 kN Ultimate Dead Load = 365.13 kN x 1.4 = 511.18 kN
Total Live Load = (4.32 + 12.96 + 12.96 + 12.96) kN = 43.2 kN Ultimate Live Load = 43.2 x 1.6 = 69.12 kN
Total Ultimate Load = Ultimate dead load + Ultimate live load = (511.18 + 69.12) kN = 580.30 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
150
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
COLUMN ANALYSIS COLUMN C6
ROOF LEVEL TRIBUTARY AREA
ROOF LEVEL DEAD LOAD
LIVE LOAD
Roof Weight = (4.5 x 7.2) m² x 1.0 kN/m² = 32.4 kN
Roof Weight = (4.5 x 7.2) m² x 0.5 kN/m² = 16.2 kN
Roof Beam = (4.5 + 7.2)m x 1.44 kN/m = 16.85 kN Total Dead Load = (32.4 + 16.85) kN = 49.25 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
151
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
SECOND FLOOR TRIBUTARY AREA
SECOND FLOOR DEAD LOAD
LIVE LOAD
Slab Self Weight = (4.5 x 7.2) m² x 3.6 kN/m² = 116.64 kN
Total Live Load = (4.5 x 7.2) m² x 1.5 kN/m² = 48.6 kN
Beam Self Weight = (4.5 + 7.2) m x 1.44 kN/m + (4.5 + 4.5) m x 1.44 kN/m x ½ = 16.85 kN + 6.48 kN = 23.33 kN Column Self Weight = (0.3 x 0.3 x 3.0) m³ x 24 kN/m³ = 6.48 kN Total Dead Load = (116.64 + 23.33 + 6.48) kN = 146.45 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
152
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
FIRST FLOOR TRIBUTARY AREA
FIRST FLOOR DEAD LOAD
LIVE LOAD
Slab Self Weight = (4.5 x 7.2) m² x 3.6 kN/m² = 116.64 kN
Total Live Load = (4.5 x 7.2) m² x 1.5 kN/m² = 48.6 kN
Beam Self Weight = (4.5 + 7.2) m x 1.44 kN/m + (4.5 + 4.5) m x 1.44 kN/m x ½ = 16.85 kN + 6.48 kN = 23.33 kN Brick Wall Self Weight = 4.5 m x 10 kN/m + (4.5 + 4.5) m x 10 kN/m x ½ = 45 kN + 45 kN = 90 kN Column Self Weight = (0.3 x 0.3 x 3.0) m³ x 24 kN/m³ = 6.48 kN STRUCTURAL ANALYSIS OF A BUNGALOW
153
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
Total Dead Load = (116.64 + 23.33 + 90 + 6.48) kN = 236.45 kN
GROUND FLOOR TRIBUTARY AREA
GROUND FLOOR DEAD LOAD
LIVE LOAD
Slab Self Weight = (4.5 x 7.2) m² x 3.6 kN/m² = 116.64 kN
Total Live Load = (4.5 x 7.2) m² x 1.5 kN/m² = 48.6 kN
Beam Self Weight = (4.5 + 7.2) m x 1.44 kN/m + (4.5 + 4.5) m x 1.44 kN/m x ½ = 16.85 kN + 6.48 kN = 23.33 kN Brick Wall Self Weight = 4.5 m x 10 kN/m + (4.5 + 4.5) m x 10 kN/m x ½ = 45 kN + 45 kN = 90 kN STRUCTURAL ANALYSIS OF A BUNGALOW
154
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
Column Self Weight = (0.3 x 0.3 x 3.0) m³ x 24 kN/m³ = 6.48 kN
Total Dead Load = (116.64 + 23.33 + 90 + 6.48) kN = 236.45 kN
ULTIMATE LOAD Total Dead Load = (49.25 + 146.45 + 236.45 + 236.45) kN = 668.6 kN Ultimate Dead Load = 668.6 kN x 1.4 = 936.04 kN Total Live Load = (16.20 + 48.60 + 48.60 + 48.60) kN = 162 kN Ultimate Live Load = 162 x 1.6 = 259.20 kN Total Ultimate Load = Ultimate dead load + Ultimate live load = (936.04 + 259.20) kN = 1195.24 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
155
YEW JEY YEE 0327708 STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
FIRST FLOOR LOAD DISTRIBUTION PLAN
BEAM ANALYSIS BEAM 8/G-H (Uniformly Distributed Load) BEAM H/6-8 (Uniformly Distributed Load and Point Load from Beam 7/H-I)
COLUMN ANALYSIS COLUMN G8 (Perimeter Column) COLUMN H6 (Interior Column)
STRUCTURAL ANALYSIS OF A BUNGALOW
157
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
BEAM ANALYSIS BEAM 8/G-H
FIRST FLOOR LOAD DISTRIBUTION PLAN
BEAM 8/G-H CARRIES: Dead Load from beam self weight Dead Load from brick wall self weight Dead Load from slab self weight Live Load from slab
STRUCTURAL ANALYSIS OF A BUNGALOW
: Gridline G-H : Gridline G-H : Gridline G-H/6-8 : Gridline G-H/6-8
158
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
DEAD LOAD
G 5400
Beam Self Weight = Beam size x Density of reinforced concrete = (0.25 x 0.60) m² x 24 kN/m³ = 3.60 kN/m
3.60 kN/m
Brick Wall Self Weight = Wall height x Wall thickness x Density of brick = (3.00 x 0.15) m² x 19 kN/m³ = 8.55 kN/m
8.55 kN/m
Slab G-H/6-8 Self Weight = Slab thickness x Density of reinforced concrete x Lx/2 = (0.125m x 24 kN/m³) x 4.8/2 = 3 kN/m² x 2.4m = 7.20 kN/m
7.20 kN/m
19.35 kN/m
Total Dead Load For G-H = (3.60 + 8.55 + 7.20) kN/m = 19.35 kN/m
LIVE LOAD
G
Ultimate Dead Load = Total dead load x Load factor = 19.35 kN/m x 1.4 = 27.09 kN/m
STRUCTURAL ANALYSIS OF A BUNGALOW
H 5400
Slab G-H/6-8 = Live load (UBBL) x Lx/2 = 1.5 kN/m² x 4.8/2 = 3.60 kN/m
ULTIMATE LOAD
H
3.60 kN/m
G
H 5400
27.09 kN/m
159
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
Ultimate Live Load = Total live load x Load factor = 3.60 kN/m x 1.6 = 5.76 kN/m
5.76 kN/m
32.85 kN/m
Total Ultimate Load For G-H = (27.09 + 5.76) kN/m = 32.85 kN/m
REACTION FORCES
G
H 5400
Total Load = 32.85 kN/m x 5.4 m = 177.39 kN By using 8H as reference point, ΣM = 0 0 = M8H1 + (-M8H2) = (R8G x 5.4) - (177.39 x 2.7) = 5.4 R8G - 478.95 5.4 R8G = 478.95 R8G = 88.70 kN
ΣFy = 0 0 = R8G +R8G + (-177.39) 0 = 88.70 + R8G - 177.39 R8G = 177.39 - 88.70 = 88.70 kN
2700
M8H1
2700
177.39 kN
M8H2 R8G
R8H
32.85 kN/m
88.70 kN
88.70 kN
SHEAR FORCES 88.70 - 177.39 = -88.70 kN -88.70 + 88.70 = 0 kN
88.70 kN -88.70 + 88.70 = 0kN
88.70 - 177.39 = -88.70 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
160
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
BENDING MOMENT Positive Area = 88.70 kN x 2.7 m x ½ = 119.74 kNm 119.74 kNm Negative Area = -88.70 kN x 2.7 m x ½ = -119.74 kNm
∴ Positive area = Negative area 119.74 kNm + (-119.74 kNm) = 0
STRUCTURAL ANALYSIS OF A BUNGALOW
0 kNm
119.74 - 119.74 = 0 kNm
161
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
BEAM 7/H-I
FIRST FLOOR LOAD DISTRIBUTION PLAN
BEAM 7/H-I CARRIES: Dead Load from beam self weight Dead Load from brick wall self weight
STRUCTURAL ANALYSIS OF A BUNGALOW
: Gridline H-I : Gridline H-I
162
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
DEAD LOAD
H
I 3000
Beam Self Weight = Beam size x Density of reinforced concrete = (0.20 x 0.60) m² x 24 kN/m³ = 3.60 kN/m
3.60 kN/m
Brick Wall Self Weight = Wall height x Wall thickness x Density of brick = (3.00 x 0.15) m² x 19 kN/m³ = 8.55 kN/m
8.55 kN/m
Total Dead Load For H-I = (3.60 + 8.55) kN/m = 12.15 kN/m
12.15 kN/m
H ULTIMATE LOAD Ultimate Dead Load = Total dead load x Load factor = 12.15 kN/m x 1.4 = 17.01 kN/m
STRUCTURAL ANALYSIS OF A BUNGALOW
I 3000
17.01 kN/m
163
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
REACTION FORCES
H
I 3000
Total Load = 17.01 kN/m x 3 m = 51.03 kN By using 7I as reference point, ΣM = 0 0 = M7I1 + (-M7I2) = (R7H x 3) - (51.03 x 1.5) = 3 R7H - 76.55 3 R7H = 76.55 R7H = 25.52 kN
ΣFy = 0 0 = R7H +R7I + (-51.03) 0 = 25.52 + R7I -51.03 R7I = 51.03 -25.52 = 25.52 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
1500
M7I1
1500
51.03 kN
M7I2
R7H
R7I
17.01 kN/m
25.52 kN
25.52 kN
164
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
BEAM H/6-8
FIRST FLOOR LOAD DISTRIBUTION PLAN
BEAM 5/A-C CARRIES: Dead Load from beam self weight Dead Load from brick wall self weight Dead Load from slab self weight Live Load from slab
STRUCTURAL ANALYSIS OF A BUNGALOW
: Gridline 6-8 : Gridline 6-8 : Gridline G-H/6-8 : Gridline G-H/6-8
165
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
DEAD LOAD
6
Beam Self Weight = Beam size x Density of reinforced concrete = (0.20 x 0.60) m² x 24 kN/m³ = 3.60 kN/m
8
4800 3300
1500
3.60 kN/m
Brick Wall Self Weight = Wall height x Wall thickness x Density of brick = (3.00 x 0.15) m² x 19 kN/m³ = 8.55 kN/m
8.55 kN/m
Slab G-H/6-8 Self Weight = Slab thickness x Density of reinforced concrete x Lx/2 x 2/3 = (0.125 m x 24 kN/m³) x 5.4/2 x 2/3 = 3 kN/m² x 2.7 m x 2/3 = 5.40 kN/m
5.40 kN/m
15.55 kN/m
Total Dead Load For 6-8 = (3.60 + 8.55 + 5.40) kN/m = 15.55 kN/m
LIVE LOAD
7
6
7
8
4800
Slab G-H/6-8 = Live load (UBBL) x Lx/2 x 2/3 = 1.5 kN/m² x 5.4/2 x 2/3 = 2.7 kN/m
STRUCTURAL ANALYSIS OF A BUNGALOW
3300
1500
5.40 kN/m
166
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
ULTIMATE LOAD Ultimate Dead Load For 6-8 = Total dead load x Load factor = 15.55 kN/m x 1.4 = 21.77 kN/m
Ultimate Live Load For 6-8 = Total live load x Load factor = 2.7 kN/m x 1.6 = 4.32 kN/m
Total Ultimate Load For 6-8 = (21.77 + 4.32) kN/m = 26.09 kN/m
Point Load = R7H (from Beam 7/H-I) = 21.52 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
6
7
8
4800 3300
1500
21.77 kN/m
4.32 kN/m
26.09 kN/m
21.52 kN 26.09 kN/m
167
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
REACTION FORCES
7
6
Total Load For 6-7 = 26.09 kN/m x 3.3 m = 125.22
By using 8H as reference point, ΣM = 0 0 = M8H1 + (-M8H2) + (-M8H3) = (R8H x 4.8) - (125.22 x 2.4) - (25.52 x 1.5) = 4.8 R6H - 300.53 - 38.28 4.8 R6H = 338.81 R6H = 70.59 kN
ΣFy = 0 0 = R6H +R8H + (-86.10) + (-39.12) + (-25.52) 0 = 70.59 + R8H - 150.73 R8H = 150.74 - 70.59 = 80.15
8
4800 2400
800
1500
25.52 kN M8H1
125.22 kN
M8H2
M8H3
R6H
R8H 25.52 kN 26.09 kN/m
70.59 kN
80.15 kN
SHEAR FORCES 70.59 - 86.10 = -15.51 kN -15.51 - 25.52 = -41.03 kN -41.03 - 39.13 = -80.16 kN -80.16 + 80.15 = -0.01 kN (≈0 kN)
70.59 kN 70.59 - 86.10 = -15.51kN
-41.03 - 39.13 = -80.15 kN
Positive Area = (147.63 + 42.55) kN x ½ x 3.6 m = 342.32 kNm 342.32 kNm
Negative Area = (-42.56 - 147.64) kN x ½ x 3.6 m = -342.36 kNm (≈342.32 kNm)
STRUCTURAL ANALYSIS OF A BUNGALOW
≈ 0 kN
-15.51 - 25.52 = -41.03kN
BENDING MOMENT
∴ Positive area ≈ Negative area 342.32 kNm + (-342.36 kNm) = -0.04 (≈0)
-80.16 - 80.10
0 kNm
342.32 - 342.35
≈ 0 kNm
168
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
BENDING MOMENT 3.3 - 0.8
Positive Area 15,51/70.59 = x/3.30 x = 0.80
= 2.50
x = 0.8
3.3 - 0.80 = 2.50 = ½(70.59 x 2.50) + ½(15.51 x 0.73) = 88.23 + 5.66 = 93.09 kNm
80.15 - 41.03
= 39.12
Negative Area 80.15 - 41.03 = 39.12
93.09 kNm
= (1.5 x 41.03) + ½(1.5 x 39.12) = 61.77 + 31.34 = 93.11 ∴ Positive area ≈ Negative area 93.09 kNm + (-93.11 kNm) = -0.02 (≈0)
STRUCTURAL ANALYSIS OF A BUNGALOW
0 kNm
93.09 - 93.11
≈ 0 kNm
169
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
COLUMN ANALYSIS COLUMN G8
ROOF LEVEL TRIBUTARY AREA
ROOF LEVEL DEAD LOAD
LIVE LOAD
Roof Weight = (6.3 x 2.4) m² x 1.0 kN/m² = 15.12 kN
Roof Weight = (6.3 x 2.4) m² x 0.5 kN/m² = 7.56 kN
Roof Beam = (6.3 + 2.4) m x 1.44 kN/m = 12.53 kN
Total Dead Load = (15,12 + 12.53) kN = 27.65 kN STRUCTURAL ANALYSIS OF A BUNGALOW
170
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
SECOND FLOOR TRIBUTARY AREA
SECOND FLOOR DEAD LOAD Slab Self Weight = (6.3 x 2.4) m² x 3.6 kN/m² = 54.43 kN
Column Self Weight = (0.3 x 0.3 x 3.0) m³ x 24 kN/m³ = 6.48 kN
Beam Self Weight = (6.3 + 2.4) m x 1.44 kN/m + (2.4 m x 1.44 kN/m x ½) = 12.53 kN + 1.73 kN = 14.26 kN
Total Dead Load = (54.43 + 14.26 + 97.20 + 6.48) kN = 172.47 kN
Brick Wall Self Weight = (3.6 + 2.7) m x 10 kN/m = 97.20 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
LIVE LOAD Total Live Load = (6.3 x 2.4) m² x 1.5 kN/m² = 22.68 kN
171
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
FIRST FLOOR TRIBUTARY AREA
FIRST FLOOR DEAD LOAD Slab Self Weight = (6.3 x 2.4) m² x 3.6 kN/m² = 54.43 kN
Column Self Weight = (0.3 x 0.3 x 3.0) m³ x 24 kN/m³ = 6.48 kN
Beam Self Weight = (6.3 + 2.4) m x 1.44 kN/m + (2.4 m x 1.44 kN/m x ½ ) = 12.53 kN + 1.73 kN = 14.26 kN
Total Dead Load = (54.43 + 14.26 + 114 + 6.48) kN = 189.17 kN
Brick Wall Self Weight = (6.3 + 2.7 + 2.4) m x 10 kN/m = 114 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
LIVE LOAD Total Live Load = (6.3 x 2.4) m² x 1.5 kN/m² = 22.68 kN
172
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
GROUND FLOOR TRIBUTARY AREA
GROUND FLOOR DEAD LOAD Slab Self Weight = (6.3 x 2.4) m² x 3.6 kN/m² = 54.43 kN
Column Self Weight = (0.3 x 0.3 x 3.0) m³ x 24 kN/m³ = 6.48 kN
Beam Self Weight = (6.3 + 2.4) m x 1.44 kN/m + (2.4 m x 1.44 kN/m x ½ ) = 12.53 kN + 1.73 kN = 14.26 kN
Total Dead Load = (54.43 + 14.26 + 87 + 6.48) kN = 162.27 kN
LIVE LOAD Brick Wall Self Weight = (6.3+2.4) m x 10 kN/m = 87 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
Total Live Load = (6.3 x 2.4) m² x 1.5 kN/m² = 22.68 kN
173
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
ULTIMATE LOAD Total Dead Load = (27.65 + 172.47 + 189.17 + 162.27) kN = 551.56 kN Ultimate Dead Load = 551.56 kN x 1.4 = 772.18 kN
Total Live Load = (7.56 + 22.68 + 22.68 + 22.68) kN = 75.60 kN Ultimate Live Load = 75.60 x 1.6 = 120.96 kN
Total Ultimate Load = Ultimate dead load + Ultimate live load = (772.18 + 120.96) kN = 893.14 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
174
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
COLUMN ANALYSIS COLUMN H6
ROOF LEVEL TRIBUTARY AREA
ROOF LEVEL DEAD LOAD
LIVE LOAD
Roof Weight = (4.2 x 3.75) m² x 1.0 kN/m² = 15.75 kN
Roof Weight = (4.2 x 3.75) m² x 0.5 kN/m² = 7.88 kN
Roof Beam = (4.2 + 3.75)m x 1.44 kN/m = 11.45 kN Total Dead Load = (15.75 + 11.45) kN = 27.20 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
175
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
SECOND FLOOR TRIBUTARY AREA
SECOND FLOOR DEAD LOAD
LIVE LOAD
Slab Self Weight = (2.7 x 3.75) m² x 3.6 kN/m² = 23.22 kN
Total Live Load = (2.7 x 3.75) m² x 1.5 kN/m² = 15.19 kN
Beam Self Weight = (2.7 + 3.75) m x 1.44 kN/m = 9.28 kN Brick Wall Self Weight = (3.75 + 2.7) m x 10 kN/m = 64.50 kN Column Self Weight = (0.3 x 0.3 x 3.0) m³ x 24 kN/m³ = 6.48 kN Total Dead Load = (23.22 + 9.28 + 64.50 + 6.48) kN = 103.48 kN STRUCTURAL ANALYSIS OF A BUNGALOW
176
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
FIRST FLOOR TRIBUTARY AREA
FIRST FLOOR DEAD LOAD
LIVE LOAD
Slab Self Weight = (2.7 x 3.75) m² x 3.6 kN/m² = 23.22 kN
Total Live Load = (2.7 x 3.75) m² x 1.5 kN/m² = 15.19 kN
Beam Self Weight = (2.7 + 3.75) m x 1.44 kN/m = 9.28 kN Brick Wall Self Weight = 3.75 m x 10 kN/m = 37.50 kN Column Self Weight = (0.3 x 0.3 x 3.0) m³ x 24 kN/m³ = 6.48 kN Total Dead Load = (23.22 + 9.28 + 37.50 + 6.48) kN = 76.48 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
177
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
GROUND FLOOR TRIBUTARY AREA
GROUND FLOOR DEAD LOAD
LIVE LOAD
Slab Self Weight = (4.2 x 3.75) m² x 3.6 kN/m² = 56.7 kN
Total Live Load = (4.2 x 3.75) m² x 1.5 kN/m² = 23.63 kN
Beam Self Weight = (4.2 + 3.75) m x 1.44 kN/m = 11.45 kN Brick Wall Self Weight = 3.75 m x 10 kN/m = 37.50 kN Column Self Weight = (0.3 x 0.3 x 3.0) m³ x 24 kN/m³ = 6.48 kN Total Dead Load = (56.7 + 11.45 + 37.50 + 6.48) kN = 112.13 kN STRUCTURAL ANALYSIS OF A BUNGALOW
178
STRUCTURAL ANALYSIS OF BEAMS & COLUMNS
ULTIMATE LOAD Total Dead Load = (27.20 + 103.48 + 76.48 + 112.13) kN = 319.29 kN Ultimate Dead Load = 319.29 kN x 1.4 = 447 kN Total Live Load = (7.88 + 15.19 + 15.19 + 23.63) kN = 61.89 kN Ultimate Live Load = 61.89 x 1.6 = 99.02 kN Total Ultimate Load = Ultimate dead load + Ultimate live load = (447 + 99.02) kN = 546.02 kN
STRUCTURAL ANALYSIS OF A BUNGALOW
179