BUILDING STRUCTURES (BLD61003) ASSIGNMENT 2 : STRUCTURAL ANALYSIS OF A BUNGALOW
AKANAKA RESIDENCE, JAKARTA, INDONESIA (RAW ARCHITECTS)
TUTOR: MR. MOHD. ADIB RAMLI
CHEN LIAN LIAN (AGNES) CHONG MIN (CADENCE) LEE JIA YEE (REBECCA) NG JING YUAN NANG AYE MYAT MON SIM LI MEI
0333357 0333339 0333311 0331472 0328627 0328623
TABLE OF CONTENTS
1.0
Introduction
2.0
Architectural Plans 2.1 2.2 2.3
Ground Floor Plan First Floor Plan Roof Plan
3.0
Structural Brief
4.0
Structural Plans 4.1 4.2 4.3
5.0
9
10 11 12
Ground Floor Load Distribution Plan First Floor Load Distribution Plan Roof Load Distribution Plan
13 14 15
Column Tributary Area Diagrams 6.1 6.2 6.3
7.0
6 7 8
Load Distribution Plans 5.1 5.2 5.3
6.0
Ground Floor Structural Plan First Floor Structural Plan Roof Structural Plan
5
Ground Floor Columns Tributary Area Diagram First Floor Columns Tributary Area Diagram Roof Columns Tributary Area Diagram
16 17 18
Sim Li Mei - Beam and Column Analysis
19
7.1
Selected Beams and Columns
20
7.2
Beam Analysis 7.2.1 Uniform Distribution Load 7.2.2 Point Load & UDL
21 25
Column Analysis 7.3.1 Perimeter Column 7.3.2 Internal Column
31 35
7.3
2
8.0
Nang Aye Myat Mon - Beam and Column Analysis
39
8.1
Selected Beams and Columns
40
8.2
Beam Analysis 8.2.1 Uniform Distribution Load 8.2.2 Point Load & UDL
41 45
Column Analysis 8.3.1 Perimeter Column 8.3.2 Internal Column
51 55
8.3
9.0
Ng Jing Yuan - Beam and Column Analysis
59
9.1
Selected Beams and Columns
60
9.2
Beam Analysis 9.2.1 Uniform Distribution Load 9.2.2 Point Load & UDL
61 65
Column Analysis 9.3.1 Perimeter Column 9.3.2 Internal Column
71 75
9.3
10.0 Lee Jia Yee - Beam and Column Analysis
79
10.1 Selected Beams and Columns
80
10.2 Beam Analysis 10.2.1 Uniform Distribution Load 10.2.2 Point Load & UDL
81 85
10.3 Column Analysis 10.3.1 Perimeter Column 10.3.2 Internal Column
91 95
3
11.0 Chong Min - Beam and Column Analysis
99
11.1 Selected Beams and Columns
100
11.2 Beam Analysis 11.2.1 Uniform Distribution Load 11.2.2 Point Load & UDL
101 105
11.3 Column Analysis 11.3.1 Perimeter Column 11.3.2 Internal Column
113 117
12.0 Chen Lian Lian - Beam and Column Analysis
121
12.1 Selected Beams and Columns
122
12.2 Beam Analysis 12.2.1 Uniform Distribution Load 12.2.2 Point Load & UDL
123 127
12.3 Column Analysis 12.3.1 Perimeter Column 12.3.2 Internal Column
133 137
4
1.0
INTRODUCTION
Exterior (above) and interior (right) view of Akanaka Residence, Jakarta, Indonesia. (Archdaily, 2016)
In this group cum individual assignment, we were given to task to obtain a set of architectural drawings for a 2-storey bungalow. We were then required to redraw and simplify the plans to only grid lines, dimensions and room labels. The bungalow plan drawings used in this assignment was obtained from an online source: https://www.archdaily.com/791281/akanaka-raw-architecture. This bungalow, named Akanaka, is located in Jakarta, Indonesia designed by RAW Architects. The architectural plan was redrawn and modified in AutoCAD requirements of the assignment.
in order to suit the
Among the lists of drawings produced were ground floor structural plan, first floor structural plan and the roof structural plan.The subsequent structural plans were then duplicated in order to be turned into load distribution plans and columns tributary area, 2 beams and 2 columns were chosen among the group members, prior in conducting the structural analysis and respective calculations: - One (1) beam with point load and uniformly distributed load - One (1) beam with only uniformly distributed load - One internal column (from roof to ground level) - One perimeter column (from roof to ground level) Along with the calculations, we were also required to produce load diagrams, shear force diagrams and bending moment diagrams, whereas for the column, the ultimate load for the column is analysed.
5 Images above shows the interior spaces of the house. (Archdaily, 2016)
2.0
ARCHITECTURAL PLANS 2.1
GROUND FLOOR PLAN
Ground Floor Plan Scale 1:200 6
2.0
ARCHITECTURAL PLANS 2.2
FIRST FLOOR PLAN
First Floor Plan Scale 1:200 7
2.0
ARCHITECTURAL PLANS 2.3
ROOF PLAN
Roof Plan Scale 1:200 8
3.0
STRUCTURAL BRIEF
(Quantity Life and Dead Loads Acting on Structure) Dimension of structure Structure
Dimension
Slab
0.15m (thickness)
Wall
0.15m X 3.0m (thickness X height)
Beam
0.2m X 0.3 m (width X depth)
Column
0.3m X 0.3m X 3.0m (width X length X height)
Standard Weight of Material Material
Standard Weight (kN/m³)
Brickwork
19
Reinforced concrete
24
Structure Self-Weight Structure
Calculation
Self-weight
Concrete slab
0.15m X 24kN/m³
3.6kN/m²
Brick wall
0.15m X 3.0m X 19kN/m³
8.6kN/m
Beam
0.2m X 0.3m X 24kN/m³
1.4kN/m
Column
0.3m X 0.3m X 3.0m X 24kN/m³
6.5kN/m²
Roof
-
1.0kN/m² 9
4.0
STRUCTURAL PLANS 4.1
GROUND FLOOR STRUCTURAL PLAN
Ground Level Structural Plan Scale 1:200
10
4.0
STRUCTURAL PLANS 4.2
FIRST FLOOR STRUCTURAL PLAN
First Level Structural Plan Scale 1:200
11
4.0
STRUCTURAL PLANS 4.3
ROOF STRUCTURAL PLAN
Roof Structural Plan Scale 1:200
12
5.0
LOAD DISTRIBUTION PLANS 5.1
GROUND FLOOR LOAD DISTRIBUTION PLAN
Ground Level (Load Distribution Plan) Scale 1:200
13
5.0
LOAD DISTRIBUTION PLANS 5.2
FIRST FLOOR LOAD DISTRIBUTION PLAN
First Level (Load Distribution Plan) Scale 1:200
14
5.0
LOAD DISTRIBUTION PLANS 5.3
ROOF LOAD DISTRIBUTION PLAN
Roof Level (Roof Load Distribution Plan) Scale 1:200
15
6.0
COLUMNS TRIBUTARY AREA DIAGRAM 6.1
GROUND FLOOR COLUMNS TRIBUTARY AREA DIAGRAM
Ground Level (Columns Tributary Area Diagram) Scale 1:200
16
6.0
COLUMNS TRIBUTARY AREA DIAGRAM 6.2
FIRST FLOOR COLUMNS TRIBUTARY AREA DIAGRAM
First Level (Columns Tributary Area Diagram) Scale 1:200
17
6.0
COLUMNS TRIBUTARY AREA DIAGRAM 6.3
ROOF LEVEL COLUMNS TRIBUTARY AREA DIAGRAM
Roof Level (Columns Tributary Area Diagram) Scale 1:200
18
7.0
SIM LI MEI
BEAM AND COLUMN ANALYSIS 7.1
Selected Beams and Columns
7.2 Beam Analysis 7.2.1 Uniform Distribution Load -First Floor Beam B-C / 14a 7.2.2 Point Load & UDL -First Floor Beam B/13-15 7.3 Column Analysis 7.3.1 Perimeter Column -Column C/13 7.3.2 Internal Column -Column B/13
19
7.1
SELECTED BEAMS AND COLUMNS
Perimeter Column - Column B / 13
Point Load & UDL - Beam B/ 13-15
Internal Column - Column C / 13
Uniform Distribution Load Beam Beam B-C / 14a
20
7.2
BEAM ANALYSIS 7.2.1 UNIFORM DISTRIBUTION LOADS
First Floor Beam B-C / 14a First Floor Beam B-C / 14a carries: -
Dead load from beam self weight: gridline B-C/14a
-
Dead load from brick wall weight: gridline B-C/14a
-
Dead load from slab: gridline B-C/13-14a & B-C/14a - 15
-
Live load from slab: gridline B-C/13-14a & B-C/14a-15
First floor structural plan
First floor load distributary plan
21
7.2
BEAM ANALYSIS 7.2.1 UNIFORM DISTRIBUTION LOADS
First Floor Beam B-C / 14a B Dead Load
C 3.43m 1.4kN/m
Beam self weight = (0.2 X 0.3) m² X 24kN/m³ = 1.44kN/m
8.6kN/m Brick wall self weight = (0.15 x 3.0) m² X 19kN/m³ = 8.6kN/m
Slab B-C/13-14a = (2.77m/2) X (0.15m X 24kN/m³) = 1.385m X 3.6kN/m³ = 5kN/m
5kN/m
2.7kN/m Slab B-C/14a-15 = (1.48m/2)X (0.15m X 24kN/m³) = 0.74m X 3.6kN/m³ = 2.7kN/m
17.7kN/m Total Dead Load = 1.4kN/m + 8.6kN/m + 5kN/m + 2.7kN/m = 17.7kN/m
22
7.2
BEAM ANALYSIS 7.2.1 UNIFORM DISTRIBUTION LOADS
First Floor Beam B-C / 14a Live Load Slab B-C/13-14a = (2.77m/2) X 1.5kN/m² = 1.385m X 1.5kN/m² = 2.1kN/m
Slab B-C/14a - 15 = (1.48m/2) X 1.5kN/m² = 0.74m X 1.5kN/m² = 1.1kN/m
Total live load = 2.1kN/m + 1.1kN/m = 3.3kN/m
B
C 3.43m 2.1kN/m
1.1kN/m
3.3kN/m
Ultimate Load 24.8kN/m Ultimate dead load = 17.7kN/m X 1.4 = 24.8kN/m
5.3kN/m Ultimate live load = 3.3kN/m X 1.6 = 5.3kN/m
30.1kN/m Total ultimate load = 24.8kN/m + 5.3kN/m = 30.1kN/m 23
7.2
BEAM ANALYSIS 7.2.1 UNIFORM DISTRIBUTION LOADS
First Floor Beam B-C / 14a B
C
3.43m
Resultant Force
30.1kN/m
= 30.1kN/m X 3.43m = 103.2kN
3.43m Reaction Force ∑MD = 0 = Rb (3.43) – 103.2(3.43/2) = 3.43Rb – 177 Rb = 51.6kN
1.715m
1.715m
Fᵣ = 103.2kN
∑Fy = 0 = Rc + 51.6 - 103.2 Rc = 51.6kN
Rb
Ra
3.43m 1.715m
1.715m
30.1kN/m
Rb = 51.6kN
Rc = 51.6kN
Shear force diagram 51.6kN - 103.2kN = -51.6kN
51.6kN -51.6kN+51.6kN = 0kN
+
-51.6kN + 51.6kN = 0kN 0kN
Bending moment diagram 44.2kNm
Positive area 51.6kN X 1.715m X (½) = 44.2kNm Negative area 51.6kN X 1.715m X (½) = 44.2kNm Hence, Positive area = Negative area
0kN
51.6kN - 103.2kN = -51.6kN
0kN 24
7.2
BEAM ANALYSIS 7.2.2 POINT LOAD & UDL
First Floor Beam B / 13-15
First Floor Beam B/13-15 carries: -
Dead load from beam self weight: gridline B/13-15
-
Dead load from brick wall weight: gridline B/13-14a
-
Dead load from slab: gridline B-C/13-14a
-
Live load from slab: gridline B-C/13-14a
-
Point load at point B/14a from beam B-C/14a
First floor structural plan
First floor load distributary plan
25
7.2
BEAM ANALYSIS 7.2.2 POINT LOAD & UDL
First Floor Beam B / 13-15 Dead Load
13
14a 4.25m 2.77m
15 1.48m
1.4kN/m
Beam self weight = (0.2 x 0.3) m² x 24kN/m³ = 1.4kN/m
8.6kN/m Brick wall self weight = (0.15 x 3.0) m² x 19kN/m³ = 8.6kN/m
3.2kN/m Slab B-C/13-14a = [(2.77m / 2) (⅔)] x (0.15m x 24kN/m³) = 0.9m x 3.6kN/m³ = 3.2kN/m 13.2kN/m Total Dead Load
1.4kN/m
Beam B/13-14a = 1.4kN/m + 8.6kN/m + 3.2kN/m = 13.2kN/m Beam B/14a-15 = 1.4kN/m
26
7.2
BEAM ANALYSIS 7.2.2 POINT LOAD & UDL
First Floor Beam B / 13-15 13 Live Load Slab B-C/13-14a = [(2.77m / 2) (⅔)] x 1.5kN/m² = 0.9m x 1.5kN/m² = 1.4kN/m
14a 4.25m 2.77m 1.4kN/m
15 1.48m
1.4kN/m Total Live Load Beam B/13-14a = 1.4kN/m
27
7.2
BEAM ANALYSIS 7.2.2 POINT LOAD & UDL
First Floor Beam B / 13-15 Ultimate Load
13
14a 4.25m 2.77m
15 1.48m
Ultimate dead load Beam B/13-14a = 13.2kN/m x 1.4 = 18.5kN/m
18.5kN/m 2kN/m
Beam B/14a-15 = 1.4kN/m x 1.4 = 2kN/m
2.7kN/m Ultimate live load Beam B/13-14a = 1.4kN/m x 1.6 = 2.7kN/m
Total ultimate load
21.2kN/m 2kN/m
Beam B/13-14a = 18.5kN/m + 2.7kN/m = 21.2kN/m Beam B/14a-15 = 2kN/m
51.6kN 21.2kN/m Point Load from beam B-C/14a = 51.6kN
2kN/m
28
7.2
BEAM ANALYSIS 7.2.2 POINT LOAD & UDL
First Floor Beam B / 13-15
13
14a 4.25m 2.77m
Resultant Force Point load at point B/14a = 51.6kN
15 1.48m
51.6kN/m 21.2kN/m
Resultant Force, Fr1 = 21.2kN/m x 2.77m = 58.7kN
2kN/m
Resultant Force, Fr2 = 2kN/m x 1.48m = 3kN
Reaction Force ∑M =0 = Ra(4.25) + [-58.7 (2.865)] + [-51.6(1.48)] + [-3(0.74)] = 4.25Ra – 168.176 – 76.368– 2.22 4.25Ra = 246.764 Ra = 58.1kN
4.25m 2.77m 1.385m
1.48m
1.385m
0.74m 0.74m
51.6kN/m 21.2kN/m 2kN/m
∑Fy = 0 = 58.1 + Rb + (–58.7) + (–51.6) + (–3) Rb = 55.2kN Ra = 58.1kN
Rb = 55.2kN
29
7.2
BEAM ANALYSIS 7.2.2 POINT LOAD & UDL
13
14a
15
First Floor Beam B / 13-15 4.25m 2.77m
Shear force diagram 58.1kN - [21.2kN/m (2.77m)] = 58.1kN - 58.7kN = -0.6kN
1.385m
1.48m
1.385m
0.74m 0.74m
51.6kN/m
– 0.6kN – 51.6kN = –52.2kN
21.2kN/m
2kN/m
– 52.2kN – [2kN/m (1.48m)] = – 52.2kN – 3kN = – 55.2kN – 55.2kN + 55.2kN = 0kN Ra = 58.1kN
Rb = 55.2kN
2.77
58.1
58.1kN
x
–55.2kN + 55.2kN = 0kN
+
0.6 0kN
Triangular proportion method x / 2.77 = 0.6 / (0.6+58.1) x = 0.028
58.1kN - 58.7kN = – 0.6kN
– -0.6kN - 51.6kN = – 52.2kN
Bending moment diagram Positive area = 0.5 X 58.1 X (2.77 - 0.028 ) = 0.5 X 58.1 X 2.742 = 79.7 kNm Negative area = [0.5 (0.6) (0.028)] + [0.5(52.2 + 55.2)(1.48)] = 0.008 + 77.4 = 79.5 kNm Positive area - negative area = 79.7kNm - 79.5kNm = 0.2kNm ≈ 0kNm
– 52.2kN – 3kN = – 55.2kN
79.5kNm
30
7.3
COLUMN ANALYSIS 7.3.1 PERIMETER COLUMN - Column B/13
ROOF LEVEL
Roof level columns tributary area diagram
Dead load Roof weight = (3.175m x 1.715m) x 1.0kN/m² = 5.4kN
Total dead load = 5.4kN + 6.8kN = 12.2kN
Live Load Roof beam = (3.175 + 1.715)m x 1.4kN/m = 6.8kN
Roof weight = (3.175m x 1.715m) x 0.5kN/m² = 2.7kN
31
7.3
COLUMN ANALYSIS 7.3.1 PERIMETER COLUMN - Column B/13
FIRST LEVEL
First floor columns tributary area diagram Dead load Concrete slab = (3.175m x 1.715m) x 3.6kN/m² = 19.6kN
Total dead load = 19.6kN + 6.8kN + 27.3kN + 6.5kN = 60.2kN
Beam self weight = (3.175 + 1.715)m x 1.4kN/m = 6.8kN
Live Load
Brick wall = 3.175m x 8.6kN/m = 27.3kN
Concrete slab = (3.175m x 1.715m) x 1.5kN/m² = 8.2kN
Column self weight = (0.3 x 0.3 x 3.0)m x 24kN/m³ = 6.5kN 32
7.3
COLUMN ANALYSIS 7.3.1 PERIMETER COLUMN - Column B/13
GROUND LEVEL
Ground floor columns tributary area diagram Dead load Concrete slab = (3.175m x 1.715m) x 3.6kN/m² = 19.6kN Beam self weight = (3.175 + 1.715)m x 1.44kN/m = 6.8kN
Total dead load = 19.6kN + 6.8kN + 27.3kN + 6.5kN = 60.2kN
Live Load Brick wall = 3.175m x 8.6kN/m = 27.3kN Column self weight = (0.3 x 0.3 x 3.0)m x 24kN/m³ = 6.5kN
Concrete slab = (3.175m x 1.715m) x 1.5kN/m² = 8.2kN
33
7.3
COLUMN ANALYSIS 7.3.1 PERIMETER COLUMN - Column B/13
Ultimate Load Total dead load = 12.2kN + 60.2kN + 60.2kN = 132.6kN Total live load = 2.7kN + 8.2kN + 8.2kN = 19.1kN
Ultimate dead load = 132.6kN x 1.4 = 185.6kN
Ultimate live load = 19.1kN x 1.6 = 30.6kN
Total ultimate load = 185.6kN + 30.6kN = 216.2kN
34
7.3
COLUMN ANALYSIS 7.3.1 INTERNAL COLUMN - Column C/13
ROOF LEVEL
Dead load Roof weight = (3.42m x 4.08m) x 1.0kN/m² = 14kN
Total dead load = 14kN + 10.5kN = 24.5kN
Live Load Roof beam = (3.42m + 4.08m) x 1.4kN/m = 10.5kN
Roof weight = (3.42m x 4.08m) x 0.5kN/m² = 7kN
35
7.3
COLUMN ANALYSIS 7.3.1 INTERNAL COLUMN - Column C/13
FIRST LEVEL
Dead load Concrete slab = [(3.42m x 4.08m)]x 3.6kN/m² = 14m² x 3.6kN/m² = 50.4kN Beam self weight = (3.42m + 4.08m) x 1.4kN/m = 10.5kN Brick wall = 4.08m x 8.6kN/m = 35.1kN
Total dead load = 50.4kN + 10.5kN + 35.1kN + 6.5kN = 102.3kN
Live Load Concrete slab = [(3.42m x 4.08m)] x 1.5kN/m² = 14m² x 1.5 kN/m² = 21kN
Column self weight = (0.3 x 0.3 x 3.0)m x 24kN/m³ = 6.5kN 36
7.3
COLUMN ANALYSIS 7.3.1 INTERNAL COLUMN - Column C/13
GROUND LEVEL
Dead load Concrete slab = (3.42m x 4.08m) x 3.6kN/m² = 50.2kN
Total dead load = 50.2kN + 10.5kN + 35.1kN + 6.5kN = 102.3kN
Beam self weight = (3.42m + 4.08m)x 1.4kN/m = 10.5kN
Live Load
Brick wall = 4.08m x 8.6kN/m = 35.1kN
Concrete slab = (3.42m x 4.08m) x 1.5kN/m² = 20.9kN
Column self weight = (0.3 x 0.3 x 3.0)m x 24kN/m³ = 6.5kN 37
7.3
COLUMN ANALYSIS 7.3.1 INTERNAL COLUMN - Column C/13
Ultimate Load Total dead load = 24.5kN + 102.3kN + 102.3kN = 229.1kN Total live load = 7kN + 21kN + 20.9kN = 48.9kN
Ultimate dead load = 229.1kN x 1.4 = 320.7kN
Ultimate live load = 48.9kN x 1.6 = 78.2kN
Total ultimate load = 320.7kN + 78.2kN = 398.9kN
38
8.0
NANG AYE MYAT MON
BEAM AND COLUMN ANALYSIS 8.1 Selected Beams and Columns 8.2 Beam Analysis 8.2.1 Uniform Distribution Load -First Floor Beam B-C / 3a 8.2.2 Point Load & UDL -First Floor Beam B/3-4 8.3 Column Analysis 8.3.1 Perimeter Column -Column C/3 8.3.2 Internal Column -Column B/3
39
8.1
SELECTED BEAMS AND COLUMNS
Perimeter Column - Column B / 3
Point Load & UDL - Beam B/ 3-4
Internal Column - Column C / 3
Uniform Distribution Load Beam Beam B-C / 3a
40
8.2
BEAM ANALYSIS 8.2.1 UNIFORM DISTRIBUTION LOADS
First Floor Beam B-C / 3a First Floor Beam B-C / 3a carries: -
Dead load from beam self weight: gridline B-C/3a
-
Dead load from brick wall weight: gridline B-C/3a
-
Dead load from slab: gridline B-C/3-3a & B-C/3a - 4
-
Live load from slab: gridline B-C/3-3a & B-C/3a - 4
First floor structural plan
First floor load distributary plan
41
8.2
BEAM ANALYSIS 8.2.1 UNIFORM DISTRIBUTION LOADS
First Floor Beam B-C / 3a
Dead Load
B
3.43m
C
1.4kN/m Beam self weight = (0.2 X 0.3) m² X 24kN/m³ = 1.44kN/m
8.6kN/m Brick wall self weight = (0.15 x 3.0) m² X 19kN/m³ = 8.6kN/m
Slab B-C/3-3a = (1.83m/2) X (0.15m X 24kN/m³) = 0.915m X 3.6kN/m³ = 3.3kN/m
3.3kN/m
2.61kN/m Slab B-C/4-4a = (1.45m/2)X (0.15m X 24kN/m³) = 0.725m X 3.6kN/m³ = 2.61kN/m
15.9kN/m Total Dead Load = 1.4kN/m + 8.6kN/m +3.3kN/m + 2.61kN/m = 15.9kN/m
42
8.2
BEAM ANALYSIS 8.2.1 UNIFORM DISTRIBUTION LOADS
First Floor Beam B-C / 3a Live Load Slab B-C/3-3a = (1.83m/2) X 1.5kN/m² = 0.915m X 1.5kN/m² = 1.4kN/m
Slab B-C/3a - 4 = (1.45m/2) X 1.5kN/m² = 0.725m X 1.5kN/m² = 1.1kN/m
Total live load = 1.4kN/m + 1.1kN/m = 2.5kN/m
B
C 3.43m 1.4kN/m
1.1kN/m
2.5kN/m
Ultimate Load 22.3kN/m Ultimate dead load = 15.9kN/m X 1.4 = 22.3kN/m
4kN/m Ultimate live load = 2.5kN/m X 1.6 = 4kN/m
26.3kN/m Total ultimate load = 22.3kN/m + 4kN/m = 26.3kN/m 43
8.2
BEAM ANALYSIS 8.2.1 UNIFORM DISTRIBUTION LOADS
First Floor Beam B-C / 3a B
C
3.43m
Resultant Force
26.3kN/m
= 26.3kN/m X 3.43m = 90.2kN
3.43m Reaction Force ∑MD = 0 = Rb (3.43) – 90.2(3.43/2) = 3.43Rb – 154.7 Rb = 45.1kN
1.715m
1.715m
Fᵣ = 90.2kN
∑Fy = 0 = Rc + 45.1 - 90.2 Rc = 45.1kN
Rb
Ra
3.43m 1.715m
1.715m
26.3kN/m
Rb = 45.1kN
Rc = 45.1kN
Shear force diagram 45.1kN - 90.2kN = -45.1kN
45.1kN -45.1kN+45.1kN = 0kN
+
-45.1kN + 45.1kN = 0kN 0kN
Bending moment diagram 38.7kNm
Positive area 45.1kN X 1.715m X (½) = 38.7kNm Negative area 45.1kN X 1.715m X (½) = 38.7kNm Hence, Positive area = Negative area
0kN
45.1kN - 90.2kN = -45.1kN
0kN 44
8.2
BEAM ANALYSIS 8.2.2 POINT LOAD & UDL
First Floor Beam B / 3-4
First Floor Beam B/3-4 carries: -
Dead load from beam self weight: gridline B/3-4
-
Dead load from brick wall weight: gridline B/3-4
-
Dead load from slab: gridline B-C/3-4
-
Live load from slab: gridline B-C/3-4
-
Point load at point B/3a from beam B-C/3a
First floor structural plan
First floor load distributary plan
45
8.2
BEAM ANALYSIS 8.2.2 POINT LOAD & UDL
First Floor Beam B / 3-4 Dead Load
3
3a 3.28m 1.83m
4 1.45m
1.4kN/m
Beam self weight = (0.2 x 0.3) m² x 24kN/m³ = 1.4kN/m
8.6kN/m Brick wall self weight = (0.15 x 3.0) m² x 19kN/m³ = 8.6kN/m
2.2kN/m Slab B-C/3-3a = [(1.83m / 2) (⅔)] x (0.15m x 24kN/m³) = 0.61m x 3.6kN/m³ = 2.2kN/m 12.2kN/m Total Dead Load
1.4kN/m
Beam B/3-3a = 1.4kN/m + 8.6kN/m + 2.2kN/m = 12.2kN/m Beam B/3a-4 = 1.4kN/m
46
8.2
BEAM ANALYSIS 8.2.2 POINT LOAD & UDL
First Floor Beam B / 3-4 3 Live Load Slab B-C/3-3a = [(1.83m / 2) (⅔)] x 1.5kN/m² = 0.61m x 1.5kN/m² = 0.9kN/m
3a 3.28m 1.83m 0.9kN/m
4 1.45m
0.9kN/m Total Live Load Beam B/3-3a = 0.9kN/m
47
8.2
BEAM ANALYSIS 8.2.2 POINT LOAD & UDL
First Floor Beam B / 3-3a Ultimate Load
3
3a 3.28m 1.83m
4 1.45m
Ultimate dead load Beam B/13-14a = 12.2kN/m x 1.4 = 17.1kN/m
17.1kN/m 2kN/m
Beam B/14a-15 = 1.4kN/m x 1.4 = 2kN/m
1.3kN/m Ultimate live load Beam B/3-3a =0.9kN/m x 1.6 = 1.3kN/m
Total ultimate load
18.4kN/m 2kN/m
Beam B/3-3a = 17.1kN/m + 1.3kN/m = 18.4kN/m Beam B/3a-4 = 2kN/m
45.1kN 18.4kN/m Point Load from beam B-C/3a = 45.1kN
2kN/m
48
8.2
BEAM ANALYSIS 8.2.2 POINT LOAD & UDL
First Floor Beam B / 3-4
3
3a 3.28m 1.83m
Resultant Force Point load at point B/3a = 45.1kN
4 1.45m
45.1kN/m 17.1kN/m
Resultant Force, Fr1 = 17.1kN/m x 1.83m = 31.3kN
2kN/m
Resultant Force, Fr2 = 2kN/m x 1.45m = 3kN
Reaction Force ∑M =0 = Ra(3.28) + [-31.3 (2.365)] + [-45.1(1.45)] + [-3(0.725)] = 3.28Ra – 74 – 65.4– 2.175 3.28Ra = 141.575 Ra = 43.2kN
3.28m 1.83m 0.915m
1.45m
0.915m 0.725m 0.725m 45.1kN/m
17.1kN/m 2kN/m
∑Fy = 0 = 43.2 + Rb + (–31.3) + (–45.1) + (–3) Rb = 36.2kN Ra = 43.2kN
Rb = 36.2kN
49
8.2
BEAM ANALYSIS 8.2.2 POINT LOAD & UDL 3
First Floor Beam B / 3-4
3a
4
3.28m 1.83m
Shear force diagram 43.2kN - [17.1kN/m (1.83m)] = 43.2kN - 31.3kN = 11.9kN
0.915m
1.45m
0.915m
0.725m 0.725m
45.1kN/m
11.9kN – 45.1kN = –33.2kN
17.1kN/m
2kN/m
– 33.2kN – [2kN/m (1.45m)] = – 33.2kN – 3kN = – 36.2kN Ra = 43.2kN
Rb = 36.2kN
– 36.2kN + 36.2kN = 0kN 43.2KN
(43.2-31.3) 11.9KN
+
Bending moment diagram
0KN
0KN Positive area (43.2kN + 11.9kN)X 1.83m X (½) = 50.4kNm
-33.2KN (11.9-45.1)
Negative area (-33.2kN + (-36.2kN)X 1.45m X (½) = 50.3 kNm
-
Shear Force DIagram
Positive area - Negative area =50.4 kNm - 50.3 kNm =0.1kNm
-36.2KN (-33.2-3)
50.4KNm
0.1kNm ≈ 0kNm Hence, Positive Area = Negative Area 0KN
0KN
Bending Moment DIagram
50
8.3
COLUMN ANALYSIS 8.3.1 PERIMETER COLUMN - Column B/3
ROOF LEVEL
Roof level columns tributary area diagram
Dead load Roof weight = (3.35m x 1.715m) x 1.0kN/m² = 5.7kN
Total dead load = 5.7kN + 8.3kN = 14kN
Live Load Roof beam = (3.35 + 1.715)m x 1.44kN/m = 8.3kN
Roof weight = (3.35m x 1.715m) x 0.5kN/m² = 2.85kN
51
8.3
COLUMN ANALYSIS 8.3.1 PERIMETER COLUMN - Column B/3
FIRST LEVEL
First floor columns tributary area diagram Dead load Concrete slab = (3.35m x 1.715m) x 3.6kN/m² = 20.7kN
Total dead load = 20.7kN + 7.1kN + 28.8kN + 6.5kN = 63.1kN
Beam self weight = (3.35 + 1.715)m x 1.4kN/m = 7.1kN
Live Load
Brick wall = 3.35m x 8.6kN/m = 28.8kN
Concrete slab = (3.35m x 1.715m) x 1.5kN/m² = 8.6kN
Column self weight = (0.3 x 0.3 x 3.0)m x 24kN/m³ = 6.5kN 52
8.3
COLUMN ANALYSIS 8.3.1 PERIMETER COLUMN - Column B/3
GROUND LEVEL
Ground floor columns tributary area diagram Dead load Concrete slab = (3.35m x 1.715m) x 3.6kN/m² = 20.7kN Beam self weight = (3.35 + 1.715)m x 1.44kN/m = 7.1kN
Total dead load = 20.7kN + 7.1kN + 28.8kN + 6.5kN = 63.1kN
Live Load Brick wall = 3.35m x 8.6kN/m = 28.8kN Column self weight = (0.3 x 0.3 x 3.0)m x 24kN/m³ = 6.5kN
Concrete slab = (3.35m x 1.715m) x 1.5kN/m² = 8.6kN
53
8.3
COLUMN ANALYSIS 8.3.1 PERIMETER COLUMN - Column B/3
Ultimate Load Total dead load = 14kN + 63.1kN + 63.1kN = 140.2kN Total live load = 2.85kN + 8.6kN + 8.6kN = 20kN
Ultimate dead load = 140.2kN x 1.4 = 196.3kN
Ultimate live load = 20kN x 1.6 = 32kN
Total ultimate load = 196.3kN + 32kN = 228.3kN
54
8.3
COLUMN ANALYSIS 8.3.1 INTERNAL COLUMN - Column C/3
ROOF LEVEL
Dead load Roof weight = (3.35m x 3.42m) x 1.0kN/m² = 11.5kN
Total dead load = 11.5kN + 9.7kN = 21.2kN
Live Load Roof beam = (3.435m + 3.42m) x 1.44kN/m = 9.7kN
Roof weight = (3.35m x 3.42m) x 0.5kN/m² = 5.7kN
55
8.3
COLUMN ANALYSIS 8.3.1 INTERNAL COLUMN - Column C/3
FIRST LEVEL
Dead load Concrete slab = [(3.35m x 3.42m) - (1.715m x 1.705m)]x 3.6kN/m² = (11.5 - 2.9)m² x 3.6kN/m² = 8.6m² x 3.6 kN/m² = 31kN
Total dead load = 31kN + 9.5kN + 28.8kN + 6.5kN = 75.8kN
Beam self weight = (3.35m + 3.42m) x 1.4kN/m = 9.5kN
Live Load
Brick wall = 3.35m x 8.6kN/m = 28.8kN Column self weight = (0.3 x 0.3 x 3.0)m x 24kN/m³ = 6.5kN
Concrete slab = [(3.35m x 3.42m) - (1.715m x 1.705m)] x 1.5kN/m² = (11.5 - 2.9)m² x 1.5kN/m² = 8.6m² x 1.5 kN/m² = 12.9kN 56
8.3
COLUMN ANALYSIS 8.3.1 INTERNAL COLUMN - Column C/3
GROUND LEVEL
Dead load Concrete slab = (3.35m x 3.42m) x 3.6kN/m² = 41.2kN
Total dead load = 41.2kN +16kN + 29.4kN + 6.5kN = 93.1kN
Beam self weight = (3.35m x 3.42m)x 1.4kN/m = 16kN
Live Load
Brick wall = 3.42m x 8.6kN/m = 29.4kN
Concrete slab = (3.35m x 3.42m) x 1.5kN/m² = 17.2kN
Column self weight = (0.3 x 0.3 x 3.0)m x 24kN/m³ = 6.5kN 57
8.3
COLUMN ANALYSIS 8.3.1 INTERNAL COLUMN - Column C/3
Ultimate Load Total dead load = 21.2kN + 75.8kN + 93.1kN = 190.1kN Total live load = 5.7kN + 12.9kN + 17.2kN = 35.8kN
Ultimate dead load = 190.1kN x 1.4 = 266.14kN
Ultimate live load = 35.8kN x 1.6 = 57.3kN
Total ultimate load = 266.14kN + 57.3kN = 323.44kN
58
9.0
NG JING YUAN
BEAM AND COLUMN ANALYSIS 9.1 Selected Beams and Columns 9.2 Beam Analysis 9.2.1 Uniform Distribution Load -First Floor Beam E-F/14a 9.2.2 Point Load & UDL -First Floor Beam E/12-15 9.3 Column Analysis 9.3.1 Perimeter Column -Column G/14 9.3.2 Internal Column -Column F/14
59
9.1
SELECTED BEAMS AND COLUMNS
First floor structural plan Scale 1:200
Perimeter Column - Column G / 14
Point Load & UDL - Beam E/12-15
Internal Column - Column F/ 14
Uniform Distribution Load Beam Beam E-F/14a
60
9.2
BEAM ANALYSIS 9.2.1 UNIFORM DISTRIBUTION LOADS
First Floor Beam E-F/14a First Floor Beam E-F/14a carries: -
Dead load from beam self weight: gridline E-F/14a
-
Dead load from brick wall weight: gridline E-F/14a
-
Dead load from slab: gridline E-F/12-14a & E-F/14a - 15
-
Live load from slab: gridline E-F/12-14a & E-F/14a - 1
First floor structural plan
First floor load distributary plan
61
9.2
BEAM ANALYSIS 9.2.1 UNIFORM DISTRIBUTION LOADS
First Floor Beam E-F/14a E Dead Load
F 3.75.m 1.4kN/m
Beam self weight = Beam size x density of concrete = (0.2 X 0.3) m² X 24kN/m³ = 1.4kN/m
Brick wall self weight = Brick wall size x density of brickwork = (0.15 x 3.0) m² X 19kN/m³ = 8.6kN/m
Slab E-F/12-14a =( ᴸˣ/₂ X ²/₃ ) X slab self-weight = ( 3.75/₂ X ²/₃ ) X (0.15m X 24kN/m³) = 4.5kN/m
8.6kN/m
4.5kN/m
2.7kN/m Slab E-F/14a - 15 = ( ᴸˣ/₂ ) X slab self-weight = ( 1.48/₂ ) X (0.15m X 24kN/m³) = 2.7kN/m
17.2kN/m Total Dead Load = 1.4kN/m + 8.6kN/m + 4.5kN/m + 2.7kN/m = 17.2kN/m
62
9.2
BEAM ANALYSIS 9.2.1 UNIFORM DISTRIBUTION LOADS
First Floor Beam E-F/14a Live Load Slab E-F/12-14a =( ᴸˣ/₂ X ²/₃ ) X live load (UBBL) = ( 3.75/₂ X ²/₃ ) X 1.5kN/m² = 1.9kN/m
E
F 3.75m 1.9kN/m
1.1kN/m Slab E-F/14a - 15 = ( ᴸˣ/₂ ) X live load (UBBL) = ( 1.48/₂ ) X 1.5kN/m² = 1.1 kN/m
3.0kN/m Total live load = 1.9kN/m + 1.1kN/m = 3.0kN/m
Ultimate Load
24.1kN/m
Ultimate dead load = 17.2kN/m X 1.4 = 24.1kN/m
4.8kN/m Ultimate live load = 3.0kN/m X 1.6 = 4.8kN/m
28.9kN/m Total ultimate load = 24.1kN/m + 4.8kN/m = 28.9kN/m 63
9.2
BEAM ANALYSIS 9.2.1 UNIFORM DISTRIBUTION LOADS
First Floor Beam E-F/14a E
F
3.75m
Resultant Force
28.9kN/m
= 28.9kN/m X 3.75m =108.4kN
3.75m Reaction Force ∑MF = 0 (Ra x 3.75 ) - (108.4 x 1.875) = 0 3.75Ra = 203.25 Ra = 54.2kN
∑Fy = 0 54.2 - 108.4 + Rb = 0 Rb = 54.2kN
1.875m
1.875m
Fᵣ = 108.4kN
Rb =54.2kN
Ra=54.2kN
54.2kN
Shear force diagram (V) 54.2kN - 108.4kN = -54.2kN
-54.2kN+54.2kN = 0kN
+ 0kN
-
-54.2kN + 54.2kN = 0kN 54.2kN - 108.4kN = -54.2kN
Bending moment diagram (M) Positive area 54.2kN X 1.875m X (½) = 50.8kNm
50.8kNm
Negative area 54.2kN X 1.875m X (½) = 50.8kNm Hence, Positive area = Negative area (50.8-50.8)kNm = 0
0kN
0kN
64
9.2
BEAM ANALYSIS 9.2.2 POINT LOAD & UDL
First Floor Beam E/ 12-15
First Floor Beam E/12-15 carries: -
Dead load from beam self weight: gridline E/12-15
-
Dead load from brick wall weight: gridline E/12-14a
-
Dead load from slab: gridline E-F/12-14a
-
Live load from slab: gridline E-F/12-14a
-
Point load at point E/14a from beam E-F /14a
First floor structural plan
First floor load distributary plan
65
9.2
BEAM ANALYSIS 9.2.2 POINT LOAD & UDL
First Floor Beam E/ 12-15 Dead Load
12
14a 5.07m
Slab E-F/12-14a = ( ᴸˣ/₂ ) X slab self-weight = ( 3.75/₂ ) x (0.15m x 24kN/m³) = 6.8kN/m
Total Dead Load
6.55m
1.48m
1.4kN/m
Beam self weight = Beam size x density of concrete = (0.2 x 0.3) m² x 24kN/m³ = 1.4kN/m
Brick wall self weight = Brick wall size x density of brickwork = (0.15 x 3.0) m² x 19kN/m³ = 8.6kN/m
15
8.6kN/m
6.8kN/m
16.8kN/m
1.4kN/m
Beam E/12-14a = 1.4kN/m + 8.6kN/m + 6.8kN/m = 16.8kN/m Beam E/14a-15 = 1.4kN/m
66
9.2
BEAM ANALYSIS 9.2.2 POINT LOAD & UDL
First Floor Beam E/ 12-15 12
14a
Live Load Slab E-F/12-14a = ( ᴸˣ/₂ ) X live load (UBBL) = ( 3.75/₂ ) X 1.5kN/m² = 2.8 kN/m
Total Live Load Beam E/ 12-14a = 2.8 kN/m
15
6.55m 5.07m 1.8kN/m
1.48m
1.4kN/m
67
9.2
BEAM ANALYSIS 9.2.2 POINT LOAD & UDL
First Floor Beam E/ 12-15
12
14a
15
6.55m
Ultimate Load 5.07m
1.48m
Ultimate dead load Beam E/12-14a = 16.8kN/m x 1.4 = 23.5kN/m
23.5kN/m 2.0kN/m
Beam E/14a-15 = 1.4kN/m x 1.4 = 2.0kN/m
4.5kN/m Ultimate live load Beam E/ 12-14a = 2.8kN/m x 1.6 = 4.5kN/m
Total ultimate load
28.0kN/m 2.0kN/m
Beam E/12-14a = 23.5kN/m + 4.5kN/m = 28.0kN/m Beam E/14a-15 = 2.0kN/m
54.2kN 28.0kN/m Point Load from beam E-F /14a = 54.2kN
2.0kN/m
68
9.2
BEAM ANALYSIS 9.2.2 POINT LOAD & UDL
First Floor Beam E/ 12-15
12
14a 6.55m
Resultant Force 5.07m Point load at point E/14a = 54.2kN Resultant Force, Fr1 = 28.0kN/m x 5.07m = 142.0kN
15 1.48m
54.2kN/m 28.0kN/m 28.0kN/m
2.0kN/m
Resultant Force, Fr2 = 2.0kN/m x 1.48m = 3.0kN
Reaction Force ∑M15 = 0 (Ra x 6.55) - [142.0 x (2.535+1.48)] - (54.2 x 1.48) - (3.0 x 0.74) = 0 6.55Ra = 652.566 Ra = 99.6kN
5.07m 2.535m
6.55m 1.48m
2.535m
0.74m 0.74m
54.2kN/m 28.0kN/m 2.0kN/m
∑Fy = 0 99.6 - 142.0 - 54.2 - 3.0 + Rb = 0 Rb = 99.6kN Ra = 99.6kN
Rb = 99.6kN
69
9.2
BEAM ANALYSIS 9.2.2 POINT LOAD & UDL
12
14a
First Floor Beam E/ 12-15 5.07m Shear force diagram (V) 99.6kN - [28.0kN/m x (5.07m)] =99.6kN - 141.96kN = -42.4kN
2.535m
15
6.55m 1.48m
2.535m
0.74m 0.74m
54.2kN/m 28.0kN/m
– 42.4kN – 54.2kN = –96.6kN
2.0kN/m
– 96.6kN – [2.0kN/m (1.48m)] =-96.6kN - 2.96kN = – 99.6kN – 99.6kN + 99.6kN = 0kN 5.07
Ra = 99.6kN
Rb = 99.6kN
x 99.6kN 99.6 –99.6kN + 99.6kN = 0kN
+
42.4 0kN
99.6kN - 141.96kN = – 42.4kN
Triangular proportion method x / 5.07 = 42.4 / (99.6 + 42.4) x = 1.5 m
Bending moment diagram (M) Positive area = 0.5 X 99.6 X (5.07 - 1.5 ) = 177.6kNm
-42.4kN - 54.2kN = – 96.6kN
–
– 96.6kN – 2.96kN = – 99.6kN
177.8kNm
Negative area = (0.5 x 42.4 x 1.5) + [0.5(96.6+99.6) x 1.48] = 177.0kNm Positive area - negative area = 177.6kNm - 177.0kNm = 0.6kNm ≈ 0kNm 70
9.3
COLUMN ANALYSIS 9.3.1 PERIMETER COLUMN - Column G/14
ROOF LEVEL
Roof level columns tributary area diagram
Dead load Roof weight = (3.175m x 2.0m) x 1.0kN/m² = 6.4kN
Total dead load = 6.4kN + 7.5kN = 13.9kN
Live Load Roof beam = (3.175 + 2.0 )m x 1.44kN/m = 7.5kN
Roof weight = (3.175m x 2.0m) x 0.5kN/m² = 3.2kN
71
9.3
COLUMN ANALYSIS 9.3.1 PERIMETER COLUMN - Column G/14
FIRST LEVEL
First floor columns tributary area diagram Dead load Concrete slab = (3.175m x 2.0m) x 3.6kN/m² = 22.9kN
Total dead load = 22.9kN + 7.5kN + 17.2kN + 6.5kN = 54.1kN
Beam self weight = (3.175 + 2.0)m x 1.44kN/m = 7.5kN
Live Load
Brick wall = 2.0m x 8.6kN/m = 17.2kN
Concrete slab = (3.175m x 2.0m) x 1.5kN/m² = 9.5kN
Column self weight = (0.3 x 0.3 x 3.0)m x 24kN/m³ = 6.5kN 72
9.3
COLUMN ANALYSIS 9.3.1 PERIMETER COLUMN - Column G/14
GROUND LEVEL
Ground floor columns tributary area diagram Dead load Concrete slab = (3.175m x 2.0m) x 3.6kN/m² = 22.9kN Beam self weight = (3.175 + 2.0)m x 1.44kN/m = 7.5kN
Total dead load = 22.9kN + 7.5kN + 34.4kN + 6.5kN = 71.3kN
Live Load Brick wall = ( 2.0m x2 ) x 8.6kN/m = 34.4kN Column self weight = (0.3 x 0.3 x 3.0)m x 24kN/m³ = 6.5kN
Concrete slab = (3.175m x 2.0m) x 1.5kN/m² = 9.5kN
73
9.3
COLUMN ANALYSIS 9.3.1 PERIMETER COLUMN - Column G/14
Ultimate Load Total dead load = 13.9kN + 54.1kN + 71.3kN = 139.3kN Total live load = 3.2kN + 9.5kN + 9.5kN = 22.2kN
Ultimate dead load = 139.3kN x 1.4 = 195.0kN
Ultimate live load = 22.2kN x 1.6 = 35.5kN
Total ultimate load = 195.0kN + 35.5kN = 230.5kN
74
9.3
COLUMN ANALYSIS 9.3.1 INTERNAL COLUMN - Column F/14
ROOF LEVEL
Dead load Roof weight = (3.875m x 3.175m) x 1.0kN/m² = 12.3kN
Total dead load = 12.3kN + 7.5kN = 19.8kN
Live Load Roof beam = (3.175m + 2.0m) x 1.44kN/m = 7.5kN
Roof weight = (3.875m x 3.175m) x 0.5kN/m² = 6.1kN
75
9.3
COLUMN ANALYSIS 9.3.1 INTERNAL COLUMN - Column F/14
FIRST LEVEL
Dead load Concrete slab = (3.875m x 3.175m) x 3.6kN/m² = 44.3kN
Total dead load = 44.3kN + 7.5kN + 47.1kN + 6.5kN = 105.4kN
Beam self weight = (2.0 + 3.175)m x 1.4kN/m = 7.5kN
Live Load
Brick wall = (1.875 + 1.6 + 2.0)m x 8.6kN/m = 47.1kN
Concrete slab = (3.875m x 3.175m) x 1.5kN/m² = 18.5kN
Column self weight = (0.3 x 0.3 x 3.0)m x 24kN/m³ = 6.5kN 76
9.3
COLUMN ANALYSIS 9.3.1 INTERNAL COLUMN - Column F/14
GROUND LEVEL
Dead load Concrete slab = (3.875m x 3.175m) x 3.6kN/m² = 44.3kN
Total dead load = 44.3kN + 7.5kN + 60.6kN + 6.5kN = 118.9kN
Beam self weight = (2.0 + 3.175)m x 1.44kN/m = 7.5kN
Live Load
Brick wall = (2.0 + 3.175 + 1.875)m x 8.6kN/m = 60.6kN
Concrete slab = (3.875m x 3.175m) x 1.5kN/m² = 18.5kN
Column self weight = (0.3 x 0.3 x 3.0)m x 24kN/m³ = 6.5kN 77
9.3
COLUMN ANALYSIS 9.3.1 INTERNAL COLUMN - Column F/14
Ultimate Load Total dead load = 19.8kN + 105.4kN + 118.9kN =244.1kN Total live load = 6.1kN + 18.5kN + 18.5kN = 43.1kN
Ultimate dead load = 244.1kN x 1.4 = 341.7kN
Ultimate live load = 43.1kN x 1.6 = 69.0kN
Total ultimate load = 341.78kN + 69.0kN = 410.7kN
78
10.0
LEE JIA YEE
BEAM AND COLUMN ANALYSIS 10.1 Selected Beams and Columns 10.2 Beam Analysis 10.2.1 Uniform Distribution Load -First Floor Beam E-F / 14a 10.2.2 Point Load & UDL -First Floor Beam E/12-15 10.3 Column Analysis 10.3.1 Perimeter Column -Column E/12 10.3.2 Internal Column -Column F/12
79
10.1 SELECTED BEAMS AND COLUMNS Ground Floor Plan
Perimeter Column - Column E/ 12
Point Load & UDL - Beam E/ 12-15
Internal Column - Column F / 12
Uniform Distribution Load Beam Beam E-F / 14a
80
10.2 BEAM ANALYSIS 10.2.1 UNIFORM DISTRIBUTION LOADS
Ground Floor Beam E-F / 14a Ground Floor Beam E-F / 14a carries: -
Dead load from beam self weight: gridline E-F /14a
-
Dead load from brick wall weight: gridline E-F /14a
-
Dead load from slab: gridline E-F /12-14a & E-F /14a-15
-
Live load from slab: gridline E-F /12-14a & E-F /14a-15
Ground floor structural plan
Ground floor load distributary plan
81
10.2 BEAM ANALYSIS 10.2.1 UNIFORM DISTRIBUTION LOADS Ground Floor Beam E-F / 14a
Dead Load
E
3.75m
F
1.4kN/m Beam self weight = (0.2 X 0.3) m² X 24kN/m³ = 1.4kN/m
8.6kN/m Brick wall self weight = (0.15 x 3.0) m² X 19kN/m³ = 8.6kN/m
Slab E-F/12-14a = (4.87m/2) X (0.15m X 24kN/m³) = 2.4m X 3.6kN/m³ = 8.6kN/m
8.6kN/m
2.5kN/m Slab E-F/14a-15 = (1.48m/2)X (0.15m X 24kN/m³) = 0.7m X 3.6kN/m³ = 2.5kN/m
21.1kN/m Total Dead Load = 1.4kN/m + 8.6kN/m + 8.6kN/m + 2.5kN/m = 21.1kN/m
82
10.2 BEAM ANALYSIS 10.2.1 UNIFORM DISTRIBUTION LOADS Ground Floor Beam E-F / 14a Live Load Slab E-F/12-14a = (4.87m/2) X 1.5kN/m² = 2.4m X 1.5kN/m² = 3.6kN/m
Slab E-F/14a-15 = (1.48m/2) X 1.5kN/m² = 0.74m X 1.5kN/m² = 1.1kN/m
Total live load = 3.6kN/m + 1.1kN/m = 4.7kN/m
E
F 3.75m 3.6kN/m
1.1kN/m
4.7kN/m
Ultimate Load 29.5kN/m Ultimate dead load = 21.1kN/m X 1.4 = 29.5kN/m
7.5kN/m Ultimate live load = 4.7kN/m X 1.6 = 7.5kN/m
37kN/m Total ultimate load = 29.5kN/m + 7.5kN/m = 37kN/m 83
10.2 BEAM ANALYSIS 10.2.1 UNIFORM DISTRIBUTION LOADS Ground Floor Beam E-F / 14a E
F
3.75m
Resultant Force
37kN/m
= 37kN/m X 3.75m = 138.8kN
3.75m Reaction Force ∑MD = 0 = Rb (3.75) – 138.8(3.75/2) = 3.75Rb – 260.25 Rb = 69.4kN
1.875m
1.875m
Fᵣ = 138.8kN
∑Fy = 0 = Rc + 69.4 - 138.8 Rc = 69.4kN
Rb
Ra
3.75m 1.875m
1.875m
138.8kkN/m
Rb = 69.4kN
Rc = 69.4kN
Shear force diagram 69.4kN - 138.8kN = -69.4kN
69.4kN -69.4kN + 69.4kN = 0kN
+
-69.4kN + 69.4kN = 0kN 0kN
Bending moment diagram 65kNm
Positive area 69.4kN X 1.875m X (½) = 65kNm Negative area 69.4kN X 1.875m X (½) = 65kNm Hence, Positive area = Negative area
0kN
69.4kN - 138.8kN = -69.4kN
0kN 84
10.2 BEAM ANALYSIS 10.2.2 POINT LOAD & UDL Ground Floor Beam E / 12-15
Ground Floor Beam E / 12-15 carries: -
Dead load from beam self weight: gridline E/12-15
-
Dead load from brick wall weight: gridline E/12-14a
-
Dead load from slab: gridline E-F/12-14a
-
Live load from slab: gridline E-F/12-14a
-
Point load at point E/14a from beam E-F/14a
Ground floor structural plan
Ground floor load distributary plan
85
10.2 BEAM ANALYSIS 10.2.2 POINT LOAD & UDL Ground Floor Beam E / 12-15 Dead Load Beam self weight = (0.2 x 0.3) m² x 24kN/m³ = 1.4kN/m
Brick wall self weight = (0.15 x 3.0) m² x 19kN/m³ = 8.6kN/m
Slab E-F/12-14a = [(4.87m / 2) x (2/3)] x (0.15m x 24kN/m³) = 1.6m x 3.6kN/m³ = 5.8kN/m
12
14a 6.35m 4.87m
15 1.48m
1.4kN/m
8.6kN/m
5.8kN/m
Total Dead Load Beam E/12-14a = 1.4kN/m + 8.6kN/m + 5.8kN/m = 15.8kN/m
15.8kN/m
1.4kN/m
Beam E/14a-15 = 1.4kN/m
86
10.2 BEAM ANALYSIS 10.2.2 POINT LOAD & UDL Ground Floor Beam E / 12-15 12 Live Load Slab E-F/12-14a = [(4.87m / 2) x (2/3)] x 1.5kN/m² = 1.6m x 1.5kN/m² = 2.4kN/m
14a 6.35m 4.87m 2.4kN/m
15 1.48m
2.4kN/m Total Live Load Beam E/12-14a = 2.4kN/m
87
10.2 BEAM ANALYSIS 10.2.2 POINT LOAD & UDL Ground Floor Beam E / 12-15 Ultimate Load
12
14a 6.35m 4.87m
15 1.48m
Ultimate dead load Beam E/12-14a = 15.8kN/m x 1.4 = 22.1kN/m
22.1kN/m 2kN/m
Beam E/14a-15 = 1.4kN/m x 1.4 = 2kN/m
3.8kN/m Ultimate live load Beam E/12-14a = 2.4kN/m x 1.6 = 3.8kN/m
Total ultimate load
25.9kN/m 2kN/m
Beam E/12-14a = 22.1kN/m + 3.8kN/m = 25.9kN/m Beam E/14a-15 = 2kN/m
69.4kN 25.9kN/m Point Load from beam E-F/14a = 69.4kN
2kN/m
88
10.2 BEAM ANALYSIS 10.2.2 POINT LOAD & UDL Ground Floor Beam E / 12-15
12
14a 6.35m 4.87m
Resultant Force Point load at point E/14a = 69.4kN
15 1.48m
69.4kN/m 25.9kN/m
Resultant Force, Fr1 = 25.9kN/m x 4.87m = 126.1kN
2kN/m
Resultant Force, Fr2 = 2kN/m x 1.48m = 3kN
Reaction Force ∑M =0 = Ra(6.35) + [-126.1 (3.9)] + [-69.4(1.48)] + [-3(0.74)] = 6.35Ra – 491.8 – 102.7– 2.2 6.35Ra = 596.7 Ra = 94kN
6.35m 4.87m 2.435m
1.48m
2.435m
0.74m 0.74m
69.4kN/m 25.9kN/m 2kN/m
∑Fy = 0 = 94 + Rb + (–126.1) + (–69.4) + (–3) Rb = 104.5kN Ra = 94kN
Rb = 104.5kN
89
10.2 BEAM ANALYSIS 10.2.2 POINT LOAD & UDL
12
14a
15
Ground Floor Beam E / 12-15 6.35m 4.87m
Shear force diagram 94kN - [25.9kN/m (4.87m)] = 94kN - 126.1kN = -32.1kN
2.435m
1.48m
2.435m
0.74m 0.74m
69.4kN/m
– 32.1kN – 69.4kN = –101.5kN
25.9kN/m
2kN/m
– 101.5N – [2kN/m (1.48m)] = – 101.5kN – 3kN = – 104.5kN – 104.5N + 104.5kN = 0kN Ra = 94kN
Rb = 104.5kN
4.87
94kN 94.4 x
– 104.5N + 104.5kN = 0kN
+ 31.7 0kN
Triangular proportion method x / 4.87 = 32.1 / (32.1+94) x = 1.2
94kN - 126.1kN = –32.1kN
– -32.1kN - 69.4kN = – 101.5kN
Bending moment diagram Positive area = (½) X [94 (4.87 - 1.2)] = (½) X 345 = 172.5 kNm Negative area = [½ X (32.1 X 1.2)] + [½ X 1.48 X (101.1+104.1)] = 19.3 + 152.4 = 171.7 kNm Positive area - negative area = 172.5 kNm - 171.7 kNm = 0.8kNm ≈ 0kNm
–101.5kN – 3kN = – 104.5kN
171.7kNm
90
10.3 COLUMN ANALYSIS 10.3.1 PERIMETER COLUMN - Column E/12 ROOF LEVEL
Roof level columns tributary area diagram
Dead load Roof weight = (4.5 x 1.76)m x 1.0kN/m² = 7.9kN
Total dead load = 7.9kN + 9kN = 16.9kN
Live Load Roof beam = (4.5 + 1.76)m x 1.44kN/m = 9kN
Roof weight = (4.5 x 1.76)m x 0.5kN/m² = 4kN
91
10.3 COLUMN ANALYSIS 10.3.1 PERIMETER COLUMN - Column E/12 FIRST LEVEL
First floor columns tributary area diagram Dead load Concrete slab = (4.5 x 1.76)m x 3.6kN/m² = 28.5kN
Total dead load = 28.5kN + 11.1kN + 53.8kN + 6.5kN = 99.9kN
Beam self weight = (4.5 + 1.76)m x 1.4kN/m = 11.1N
Live Load
Brick wall = (4.5 + 1.76)m x 8.6kN/m = 53.8kN
Concrete slab = (4.5 x 1.76)m x 1.5kN/m² = 11.9kN
Column self weight = (0.3 x 0.3 x 3.0)m x 24kN/m³ = 6.5kN 92
10.3 COLUMN ANALYSIS 10.3.1 PERIMETER COLUMN - Column E/12 GROUND LEVEL
Ground floor columns tributary area diagram Dead load Concrete slab = (4.5 x 1.76)m x 3.6kN/m² = 28.5kN
Total dead load = 28.5kN + 11.1kN + 6.5kN = 46.1kN
Beam self weight = (4.5 + 1.76)m x 1.4kN/m = 11.1N
Live Load
Column self weight = (0.3 x 0.3 x 3.0)m x 24kN/m³ = 6.5kN
Concrete slab = (4.5 x 1.76)m x 1.5kN/m² = 11.9kN
93
10.3 COLUMN ANALYSIS 10.3.1 PERIMETER COLUMN - Column E/12
Ultimate Load Total dead load = 16.9kN + 99.9kN + 46.1kN = 162.9kN Total live load = 4kN + 11.9kN + 11.9kN = 27.8kN
Ultimate dead load = 162.9kN x 1.4 = 228.1kN
Ultimate live load = 27.8kN x 1.6 = 44.5kN
Total ultimate load = 228.1kN + 44.5kN = 272.6kN
94
10.3 COLUMN ANALYSIS 10.3.2 INTERNAL COLUMN - Column F/12 ROOF LEVEL
Roof level columns tributary area diagram
Dead load Roof weight = (4.4m x 3.9m) x 1.0kN/m² = 17.2kN
Total dead load = 17.2kN + 11.6kN = 28.8kN
Live Load Roof beam = (4.4m + 3.9m) x 1.4kN/m = 11.6kN
Roof weight = (4.4m x 3.9m) x 0.5kN/m² = 8.6kN
95
10.3 COLUMN ANALYSIS 10.3.2 INTERNAL COLUMN - Column F/12 FIRST LEVEL
First floor columns tributary area diagram Dead load Concrete slab = [(2.9m x 3.9m)]x 3.6kN/m² = 11.3m² x 3.6kN/m² = 40.7kN Beam self weight = (2.9m + 3.9m) x 1.4kN/m = 9.5kN Brick wall = (2.9m + 3.9m)x 8.6kN/m = 58.5kN Column self weight = (0.3 x 0.3 x 3.0)m x 24kN/m³ = 6.5kN
Total dead load = 40.7kN + 9.5kN + 58.5kN + 6.5kN = 115.2kN
Live Load Concrete slab = [(2.9m x 3.9m)] x 1.5kN/m² = 11.3m² x 1.5 kN/m² = 17kN
96
10.3 COLUMN ANALYSIS 10.3.2 INTERNAL COLUMN - Column F/12 GROUND LEVEL
Ground floor columns tributary area diagram Dead load Concrete slab = [(2.9m x 3.9m)]x 3.6kN/m² = 11.3m² x 3.6kN/m² = 40.7kN Beam self weight = (2.9m + 3.9m) x 1.4kN/m = 9.5kN Brick wall = (2.9m + 1.9m)x 8.6kN/m = 41.3kN Column self weight = (0.3 x 0.3 x 3.0)m x 24kN/m³ = 6.5kN
Total dead load = 40.7kN + 9.5kN + 41.3kN + 6.5kN = 98kN
Live Load Concrete slab = [(2.9m x 3.9m)] x 1.5kN/m² = 11.3m² x 1.5 kN/m² = 17kN
97
10.3 COLUMN ANALYSIS 10.3.2 INTERNAL COLUMN - Column F/12
Ultimate Load Total dead load = 28.8kN + 115.2kN + 98kN = 242kN Total live load = 8.6kN + 17kN + 17kN = 42.6kN
Ultimate dead load = 242kN x 1.4 = 338.8kN
Ultimate live load = 42.6kN x 1.6 = 68.2kN
Total ultimate load = 338.8kN + 68.2kN = 407kN
98
11.0
CHONG MIN
BEAM AND COLUMN ANALYSIS 11.1 Selected Beams and Columns 11.2 Beam Analysis 11.2.1 Uniform Distribution Load Ground Floor Beam B-C / 7 11.2.2 Point Load & UDL -Ground Floor Beam B/4-7 11.3 Column Analysis 11..3.1 Perimeter Column -Column B/7 11.3.2 Internal Column -Column C/7
99
11.1 SELECTED BEAMS AND COLUMNS
Perimeter Column - Column B / 7
Point Load & UDL - Beam B/ 4-7
Internal Column - Column C / 7
Uniform Distribution Load Beam Beam B-C / 7
100
11.2 BEAM ANALYSIS 11.2.1 UNIFORM DISTRIBUTION LOADS
Ground Floor Beam B-C / 7 First Floor Beam B-C / 3a carries: -
Dead load from beam self weight: gridline B-C / 7
-
Dead load from brick wall weight: gridline B-C / 7
-
Dead load from slab: gridline Slab B-C/5-7 & Slab B-C/7-9
-
Live load from slab: gridline Slab B-C/5-7 & Slab B-C/7-9
Ground floor structural plan
Ground floor load distributary plan
101
11.2 BEAM ANALYSIS 11.2.1 UNIFORM DISTRIBUTION LOADS Ground Floor Beam B-C / 7
Dead Load
Beam self weight = (0.2 X 0.3) m² X 24kN/m³ = 1.44kN/m
Brick wall self weight = (0.15 x 3.0) m² X 19kN/m³ = 8.55kN/m
Slab B-C/5-7 = (3m/2) X (0.15m X 24kN/m³) = 1.5m X 3.6kN/m³ = 5.4kN/m
Slab B-C/7-9 = (3.4m/2) X (2/3) X (0.15m X 24kN/m³) = 1.1m X 3.6kN/m³ = 4.1kN/m
Total Dead Load = 1.4kN/m + 8.55kN/m +5.4kN/m + 4.1kN/m = 19.5kN/m
102
11.2 BEAM ANALYSIS 11.2.1 UNIFORM DISTRIBUTION LOADS Ground Floor Beam B-C / 7 Live Load Slab B-C/5-7 = (3m/2) X 1.5kN/m² = 1.5m X 1.5kN/m² = 2.3kN/m
Slab B-C/7-9 = (3.4m/2) X (2/3) X 1.5kN/m² = 1.1m X 1.5kN/m² = 1.7kN/m
Total live load = 2.3kN/m + 1.7kN/m = 4.0kN/m
Ultimate Load
Ultimate dead load = 19.5N/m X 1.4 = 27.3kN/m
Ultimate live load = 4.0kN/m X 1.6 = 6.4kN/m
Total ultimate load = 27.3kN/m + 6.4kN/m = 33.7kN/m 103
11.2 BEAM ANALYSIS 11.2.1 UNIFORM DISTRIBUTION LOADS Ground Floor Beam B-C / 7
Resultant Force = 33.7kN/m X 3.4m = 115kN
Reaction Force ∑MD = 0 Rb (3.4) = 115(1.7) Rb = 57.5kN ∑Fy = 0 Rc + Rb = 115 Rc = 57.5kN
Shear force diagram 57.5kN -115kN = -57.5N -57.5kN + 57.5kN = 0kN
Bending moment diagram Positive area 57.5kN X 3.4m X (½) = 97.8kNm Negative area 45.1kN X 1.715m X (½) = 38.7kNm Hence, Positive area = Negative area 104
11.2 BEAM ANALYSIS 11.2.2 POINT LOAD & UDL Ground Floor Beam B/4-7
Ground Floor Beam B/4-7 carries: -
Dead load from beam self weight: gridline B/4-7
-
Dead load from brick wall weight: gridline B/4-7
-
Dead load from slab: gridline B-C/4-5
-
Live load from slab: gridline B-C/5-7
-
Point load at point B/5 from beam B-C/5
Ground floor structural plan
Ground floor load distributary plan
105
11.2 BEAM ANALYSIS 11.2.2 POINT LOAD & UDL Ground Floor Beam B/4-7 Dead Load
Beam self weight = (0.2 x 0.3) m² x 24kN/m³ = 1.44kN/m
Brick wall self weight = (0.15 x 3.0) m² x 19kN/m³ = 8.55kN/m
Slab B-C/4-5 = (1.5m / 2) x (0.15m x 24kN/m³) = 2.7kN/m
Slab B-C/5-7 = (3m / 2) x (2/3) X (0.15m x 24kN/m³) = 3.6kN/m
Total Dead Load Slab B-C/4-5 = 1.4kN/m + 8.6kN/m + 2.7kN/m = 12.3kN/m Slab B-C/5-7 = 1.4kN/m + 8.6kN/m + 3.6kN/m = 13.4kN/m
106
11.2 BEAM ANALYSIS 11.2.2 POINT LOAD & UDL Ground Floor Beam B/4-7
Total Live Load Slab B-C/4-5 = (1.5m / 2) x 1.5kN/m² = 1.1kN
Slab B-C/5-7 = (3m / 2) x (2/3) 1.5kN/m² = 1.5kN
107
11.2 BEAM ANALYSIS 11.2.2 POINT LOAD & UDL Ground Floor Beam B/4-7 Ultimate Load Ultimate dead load Beam B/4-5 = 12.3kN/m x 1.4 = 17.2kN/m Beam B/5-7 = 13.4kN/m x 1.4 = 18.8kN/m
Ultimate live load Beam B/4-5 =1.1kN/m x 1.6 = 1.8kN/m Beam B/5-7 =1.5kN/m x 1.6 = 2.4kN/m
Total ultimate load BeamB/4-5 = 17.2kN/m + 1.8kN/m = 19.0kN/m Beam B/5-7 = 18.8kN/m + 2.4kN/m = 21.2kN/m
Point Load from beam B-C/3a = 45.1kN
108
11.2 BEAM ANALYSIS 11.2.2 POINT LOAD & UDL Point Load at Point B/5 Dead Load
Beam self weight = (0.2 x 0.3) m² x 24kN/m³ = 1.44kN/m
Brick wall self weight = (0.15 x 3.0) m² x 19kN/m³ = 8.55kN/m
Slab B-C/4-5 = (1.5m / 2) x (0.15m x 24kN/m³) = 2.7kN/m
Slab B-C/5-7 =(3m / 2) x (0.15m x 24kN/m³) = 5.4kN/m
Total Dead Load Slab B-C/4-5 = 1.4kN/m + 8.6kN/m + 2.7kN/m + 5.4kN/m = 18.1kN/m Live Load Slab B-C/4-5 = (1.5m / 2) x 1.5kN/m² = 1.1kN
Slab B-C/5-7 = (3m / 2) x 1.5kN/m² = 2.3kN Total Live Load = 1.1kN + 2.3kN = 3.4kN 109
11.2 BEAM ANALYSIS 11.2.2 POINT LOAD & UDL Point Load at Point B/5
Ultimate Load
Ultimate dead load = 18.1N/m X 1.4 = 25.3kN/m
Ultimate live load = 3.4N/m X 1.6 = 5.5kN/m
Total ultimate load = 25.3kN/m + 5.5kN/m = 30.8kN/m
Resultant Force = 30.8kN/m X 3.4m = 105kN
110
11.2 BEAM ANALYSIS 11.2.2 POINT LOAD & UDL First Floor Beam B / 3-4 Resultant Force Point load at point B/5 = 105kN Resultant Force, Fr1 = 19kN/m x 1.5m = 28.5kN Resultant Force, Fr2 = 21.1kN/m x 3m = 63.6kN
Fr=105 kN
Reaction Force ∑MD = 0 {28.5 [4.5-(1.5/2)]} + [63.6(3/2)] + (105X3)= 4. Rb Rb = 115.3kN ∑Fy = 0 Rc + Rb = 28.5+63.6+105 Rc = 81.8kN
111
11.2 BEAM ANALYSIS 11.2.2 POINT LOAD & UDL First Floor Beam B / 3-4 Shear force diagram 115.3kN -28.5kN=86.8kN 86.8kN -105kN=-18.2kN -18.2kN+63.6kN=-81.8kN -81.8kN + 81.1kN=0
Bending moment diagram Positive area (115.3kN + 86.8kN)X 1.5m X (½) = 151 kNm Negative area (81.8kN + 18.2kN)X 3m X (½) = 150 kNm Positive area - Negative area =151 kNm - 150 kNm =1kNm 1kNm ≈ 0kNm Hence, Positive area = Negative area
112
11.3 COLUMN ANALYSIS 11.3.1 PERIMETER COLUMN - Column B/7 ROOF LEVEL
Roof level columns tributary area diagram
Dead load Roof weight = (1.7mX4.2m) x 1.0kN/m² =7.1kN
Total dead load = 7.1kN + 9.5kN =16.6kN
Live Load Roof beam = (1.7m+4.2m) x 1.44kN/m = 9.5kN
Roof weight = (1.7m+4.2m) x 0.5kN/m² =2.95kN
113
11.3 COLUMN ANALYSIS 11.3.1 PERIMETER COLUMN - Column B/7 FIRST LEVEL
First floor columns tributary area diagram
Dead load Concrete slab = (1.7mx4.2m) x 3.6kN/m² = 25.7kN
Total dead load = 25.7kN +8.3kN + 50.7kN + 6.5kN = 91.2kN
Beam self weight = (4.2m+1.7m) x 1.4kN/m = 8.3kN
Live Load
Brick wall =(4.2m+1.7m) x 8.6kN/m = 50.7kN
Concrete slab = (1.7mx4.2m) x 1.5kN/m² = 10.7kN
Column self weight = (0.3 x 0.3 x 3.0)m x 24kN/m³ = 6.5kN 114
11.3 COLUMN ANALYSIS 11.3.1 PERIMETER COLUMN - Column B/7 GROUND LEVEL
Ground floor columns tributary area diagram
Dead load Concrete slab = (1.7mx4.2m) x 3.6kN/m² = 25.7kN
Total dead load = 25.7kN +8.3kN + 50.7kN + 6.5kN = 91.2kN
Beam self weight = (4.2m+1.7m) x 1.4kN/m = 8.3kN
Live Load
Brick wall =(4.2m+1.7m) x 8.6kN/m = 50.7kN
Concrete slab = (1.7mx4.2m) x 1.5kN/m² = 10.7kN
Column self weight = (0.3 x 0.3 x 3.0)m x 24kN/m³ = 6.5kN 115
11.3 COLUMN ANALYSIS 11.3.1 PERIMETER COLUMN - Column B/7
Ultimate Load Total dead load = 16.6kN + 91.2kN + 91.2kN = 199kN Total live load =2.95KN +10.7kN +10.7kN = 24.4kN
Ultimate dead load = 199kN x 1.4 = 278.6
Ultimate live load = 24.4kN x 1.6 = 39.0kN
Total ultimate load = 278.6kN + 39.0kN = 317.6kN
116
11.3 COLUMN ANALYSIS 11.3.2 INTERNAL COLUMN - Column C/7 ROOF LEVEL
Roof level columns tributary area diagram
Dead load Roof weight = (3.4mX4.2m) x 1.0kN/m² =14.3kN
Total dead load = 14.3kN + 11kN = 25.3kN
Live Load Roof beam = (3.4m+4.2m)m x 1.44kN/m = 11.0kN
Roof weight = (3.4m x 4.2m) x 0.5kN/m² = 7.14kN
117
11.3 COLUMN ANALYSIS 11.3.2 INTERNAL COLUMN - Column C/7 FIRST LEVEL
First floor columns tributary area diagram
Dead load Concrete slab = (3.4mx4.2m) x 3.6kN/m² = 51.4kN
Total dead load = 51.4kN +10.6kN + 65.4kN + 6.5kN = 133.9kN
Beam self weight = (3.4m+4.2m) x 1.4kN/m = 10.6kN
Live Load
Brick wall = (3.4m+4.2m) x 8.6kN/m = 65.4kN
Concrete slab = (3.4mx4.2m) x 1.5kN/m² = 21.4kN
Column self weight = (0.3 x 0.3 x 3.0)m x 24kN/m³ = 6.5kN 118
11.3 COLUMN ANALYSIS 11.3.2 INTERNAL COLUMN - Column C/7 GROUND LEVEL
Ground floor columns tributary area diagram
Dead load Concrete slab = (3.4mx4.2m) x 3.6kN/m² = 51.4kN
Total dead load = 51.4kN +10.6kN + 65.4kN + 6.5kN = 133.9kN
Beam self weight = (3.4m+4.2m) x 1.4kN/m = 10.6kN
Live Load
Brick wall = (3.4m+4.2m) x 8.6kN/m = 65.4kN
Concrete slab = (3.4mx4.2m) x 1.5kN/m² = 21.4kN
Column self weight = (0.3 x 0.3 x 3.0)m x 24kN/m³ = 6.5kN 119
11.3 COLUMN ANALYSIS 11.3.2 INTERNAL COLUMN - Column C/7
Ultimate Load Total dead load = 25.3kN + 104.6kN + 104.6kN = 234.5kN Total live load =7.14N + 21.4kN +21.4kN = 50.0kN
Ultimate dead load = 234.5kN x 1.4 = 328.3kN
Ultimate live load = 50.0kN x 1.6 = 80.0kN
Total ultimate load = 328.3kN + 80.0kN = 408.3kN
120
12.0
CHEN LIAN LIAN
BEAM AND COLUMN ANALYSIS
12.1 Selected Beams and Columns 12.2 Beam Analysis 12.2.1 Uniform Distribution Load -First Floor Beam B-C/8a 12.2.2 Point Load & UDL -First Floor Beam B/7-9 12.3 Column Analysis 12.3.1 Perimeter Column -Column B/7 12.3.2 Internal Column -Column C/7
121
12.1 SELECTED BEAMS AND COLUMNS First Floor Plan
Perimeter Column - Column B / 9
Point Load & UDL - Beam B/ 7-9
Internal Column - Column C / 7
Uniform Distribution Load Beam Beam B-C / 9
122
12.2 BEAM ANALYSIS 12.2.1 UNIFORM DISTRIBUTION LOADS
First Floor Beam B-C / 8a First Floor Beam B-C / 8a carries: -
Dead load from beam self weight: gridline B-C/8a
-
Dead load from brick wall weight: gridline B-C/8a
-
Dead load from slab: gridline B-C/7-8a & B-C/8a-9
-
Live load from slab: gridline B-C/7-8a & B-C/8a-9
First floor structural plan
First floor load distributary plan
123
12.2 BEAM ANALYSIS 12.2.1 UNIFORM DISTRIBUTION LOADS First Floor Beam B-C / 8a B Dead Load
C 3.43m 1.4kN/m
Beam self weight = (0.2 X 0.3) m² X 24kN/m³ = 1.4kN/m
8.6kN/m Brick wall self weight = (0.15 x 3.0) m² X 19kN/m³ = 8.6kN/m
Slab B-C/ 7-8a = [(2.35m/2) X (⅔)] X (0.15m X 24kN/m³) = 0.78m X 3.6kN/m³ = 2.8kN/m
2.8kN/m
2.5kN/m Slab B-C/ 8a-9 = (1.4m/2)X (0.15m X 24kN/m³) = 0.7m X 3.6kN/m³ = 2.5kN/m
15.3kN/m Total Dead Load = 1.4kN/m + 8.6kN/m + 2.8kN/m + 2.5kN/m = 15.3kN/m
124
12.2 BEAM ANALYSIS 12.2.1 UNIFORM DISTRIBUTION LOADS First Floor Beam B-C / 8a Live Load Slab B-C/ 7-8a = [(2.35m/2) X (⅔)] X 1.5kN/m² = 0.78m X 1.5kN/m² = 1.2kN/m
Slab B-C/ 8a-9 = (1.4m/2) X 1.5kN/m² = 0.7m X 1.5kN/m² = 1.1kN/m
Total live load = 1.2kN/m + 1.1kN/m = 2.3kN/m
B
C 3.43m 1.2kN/m
1.1kN/m
2.3kN/m
Ultimate Load 21.4kN/m Ultimate dead load = 15.3kN/m X 1.4 = 21.4kN/m
3.7kN/m Ultimate live load = 2.3kN/m X 1.6 = 3.7kN/m
25.1kN/m Total ultimate load = 21.4kN/m + 3.7kN/m = 25.1kN/m 125
12.2 BEAM ANALYSIS 12.2.1 UNIFORM DISTRIBUTION LOADS First Floor Beam B-C / 8a B
C
3.43m
Resultant Force
25.1kN/m
= 25.1kN/m X 3.43m = 86kN
3.43m Reaction Force ∑MD = 0 = Rb (3.43) – 86(3.43/2) = 3.43Rb – 147.5 Rb = 43kN
1.715m
1.715m
Fᵣ = 86kN
∑Fy = 0 = Rc + 43 - 86 Rc = 43kN
Rb
Ra
3.43m 1.715m
1.715m
25.1kN/m
Rb = 43kN
Rc = 43kN
Shear force diagram 43kN - 86kN = -43kN
43kN -43kN+43kN = 0kN
+
-43kN + 43kN = 0kN 0kN
Bending moment diagram 36.9kNm
Positive area 43kN X 1.715m X (½) = 36.9kNm Negative area 43kN X 1.715m X (½) = 36.9kNm Hence, Positive area = Negative area
0kN
43kN - 86kN = -43kN
0kN 126
12.2 BEAM ANALYSIS 12.2.2 POINT LOAD & UDL First Floor Beam B / 7-9
First Floor Beam B/ 7-9 carries: -
Dead load from beam self weight: gridline B/ 7-9
-
Dead load from brick wall weight: gridline B/ 7-8a
-
Dead load from slab: gridline B-C/ 7-8a
-
Live load from slab: gridline B-C/ 7-8a
-
Point load at point B/ 8a from beam B-C/ 8a
First floor structural plan
First floor load distributary plan
127
12.2 BEAM ANALYSIS 12.2.2 POINT LOAD & UDL First Floor Beam B / 7-9 Dead Load
7
8a 4.17m 2.77m
9 1.4m
1.4kN/m
Beam self weight = (0.2 x 0.3) m² x 24kN/m³ = 1.4kN/m
8.6kN/m Brick wall self weight = (0.15 x 3.0) m² x 19kN/m³ = 8.6kN/m
5kN/m Slab B-C/ 7-8a = (2.77m/2)x (0.15m x 24kN/m³) = 1.39m x 3.6kN/m³ = 5kN/m 15kN/m Total Dead Load
1.4kN/m
Beam B/ 7-8a = 1.4kN/m + 8.6kN/m + 5kN/m = 15kN/m Beam B/ 8a-9 = 1.4kN/m
128
12.2 BEAM ANALYSIS 12.2.2 POINT LOAD & UDL First Floor Beam B / 7-9 7 Live Load Slab B-C/ 7-8a = (2.77m / 2) x 1.5kN/m² = 1.39m x 1.5kN/m² = 2.1kN/m
8a 4.17m 2.77m 2.1kN/m
9 1.4m
2.1kN/m Total Live Load Beam B/ 7-8a = 2.1kN/m
129
12.2 BEAM ANALYSIS 12.2.2 POINT LOAD & UDL First Floor Beam B / 7-9 Ultimate Load
7
8a 4.17m 2.77m
9 1.4m
Ultimate dead load Beam B/ 7-8a = 15kN/m x 1.4 = 21kN/m
21kN/m 2kN/m
Beam B/ 8a-9 = 1.4kN/m x 1.4 = 2kN/m
3.7kN/m Ultimate live load Beam B/ 7-8a = 2.1kN/m x 1.6 = 3.7kN/m
Total ultimate load
24.7kN/m 2kN/m
Beam B/ 7-8a = 21kN/m + 3.7kN/m = 24.7kN/m Beam B/ 8a-9 = 2kN/m
43kN 24.7kN/m Point Load from beam B-C/ 8a = 43kN
2kN/m
130
12.2 BEAM ANALYSIS 12.2.2 POINT LOAD & UDL First Floor Beam B / 7-9
7
8a
9
4.17m 2.77m
Resultant Force Point load at point B/ 8a = 43kN
1.4m 43kN/m
21kN/m
Resultant Force, Fr1 = 21kN/m x 2.77m = 58.2kN
2kN/m
Resultant Force, Fr2 = 2kN/m x 1.4m = 2.8kN
Reaction Force ∑M =0 = Ra(4.17) + [-58.2 (2.77)] + [-43(1.4)] + [-2.8(0.7)] = 4.17Ra – 161.21 – 6.02– 1.98 4.17Ra = 169.21 Ra = 40.6kN
4.17m 2.77m 1.385m
1.4m
1.385m
0.7m
0.7m
43kN/m 21kN/m 2kN/m
∑Fy = 0 = 40.6 + Rb + (–58.2) + (–43) + (–2.8) Rb = 63.4kN
Ra = 40.6kN
Rb = 63.4kN
131
12.2 BEAM ANALYSIS 12.2.2 POINT LOAD & UDL
7
8a
First Floor Beam B / 7-9
9
4.17m
Shear force diagram 40.6kN - (21kN/m X 2.77m) = 40.6kN - 58.2kN = -17.6kN
2.77m 1.385m
1.4m
1.385m
0.7m 0.7m
43kN/m
– 17.6kN – 43kN = –60.6kN
21kN/m
2kN/m
– 60.6kN – (2kN/m X 1.4m) = – 60.6kN – 2.8kN = – 63.4kN – 63.4kN + 63.4kN = 0kN
Ra = 40.6kN
Rb = 63.4kN
2.77
40.6
40.6kN
x
–63.4kN + 63.4kN = 0kN
+
17.6 0kN
40.6kN - 58.2kN = – 17.6kN
Triangular proportion method x / 2.77 = 17.6 / (17.6+40.6) x = 0.84
– -17.6kN - 43kN = – 60.6kN
Bending moment diagram Positive area = (½) X [40.6 (2.77 - 0.84)] = (½) X (112.5 X 34.1) = (½) X 78.4 = 39.2 kNm Negative area = [½ X (-17.6 X 0.84)] + [½ X 1.4 X 63.4] = -7.4 + 46.4 = 39 kNm Positive area - negative area = 39.2kNm - 39kNm = 0.2kNm ≈ 0kNm
– 60.6kN – 2.8kN = – 63.4kN
39kNm
132
12.3 COLUMN ANALYSIS 12.3.1 PERIMETER COLUMN - Column B/7 ROOF LEVEL
Roof level columns tributary area diagram
Dead load Roof weight = (4.15m x 1.715m) x 1.0kN/m² = 7.1kN
Total dead load = 7.1kN + 10.3kN = 17.4kN
Live Load Roof beam = (4.15 x 1.715)m x 1.44kN/m = 10.3kN
Roof weight = (4.15m x 1.715m) x 0.5kN/m² = 3.6kN 133
12.3 COLUMN ANALYSIS 12.3.1 PERIMETER COLUMN - Column B/7 FIRST LEVEL
First floor columns tributary area diagram Dead load Concrete slab = (4.15m x 1.715m) x 3.6kN/m² = 25.6kN
Total dead load = 25.6kN + 8.2kN + 41.5kN + 6.5kN = 81.8kN
Beam self weight = (4.15 + 1.715)m x 1.4kN/m = 8.2kN
Live Load
Brick wall = 4.15m x 10kN/m = 41.5kN
Concrete slab = (4.15m x 1.715m) x 1.5kN/m² = 10.7kN
Column self weight = (0.3 x 0.3 x 3.0)m x 24kN/m³ = 6.5kN
134
12.3 COLUMN ANALYSIS 12.3.1 PERIMETER COLUMN - Column B/7 GROUND LEVEL
Ground floor columns tributary area diagram Dead load Concrete slab = (4.17m x 1.715m) x 3.6kN/m² = 25.7kN Beam self weight = (4.17 + 1.715)m x 1.44kN/m = 8.5kN
Total dead load = 25.7kN + 8.5kN + 41.7kN + 6.5kN = 75.9kN
Live Load Brick wall = 4.17m x 8.6kN/m = 41.7kN Column self weight = (0.3 x 0.3 x 3.0)m x 24kN/m³ = 6.5kN
Concrete slab = (4.17m x 1.715m) x 1.5kN/m² = 10.7kN
135
12.3 COLUMN ANALYSIS 12.3.1 PERIMETER COLUMN - Column B/7
Ultimate Load Total dead load = 17.4kN + 81.8kN + 75.9kN = 175.1kN Total live load = 3.6kN + 10.7kN + 10.7kN = 25kN
Ultimate dead load = 178.7kN x 1.4 = 245.1kN
Ultimate live load = 25kN x 1.6 = 40kN
Total ultimate load = 245.1kN + 40kN = 285.1kN
136
12.3 COLUMN ANALYSIS 12.3.1 INTERNAL COLUMN - Column C/7 ROOF LEVEL
Roof level columns tributary area diagram
Dead load Roof weight = (4.15m x 3.42m) x 1.0kN/m² = 14.2kN
Total dead load = 14.2kN + 20.4kN = 34.6kN
Live Load Roof beam = (4.15m x 3.42m) x 1.44kN/m = 20.4kN
Roof weight = (4.15m x 3.42m) x 0.5kN/m² = 7.1kN
137
12.3 COLUMN ANALYSIS 12.3.1 INTERNAL COLUMN - Column C/7 FIRST LEVEL
First level columns tributary area diagram Dead load Concrete slab = (4.15m X 3.42m) X 3.6kN/m² = 51.1kN
Total dead load = 51.1kN + 10.6kN + 41.5kN + 6.5kN = 109.7kN
Beam self weight = (4.15m + 3.42m) x 1.4kN/m = 10.6kN
Live Load
Brick wall = 4.15m x 10kN/m = 41.5kN
Concrete slab = (4.15m x 3.42m) x 1.5kN/m² = 21.3kN
Column self weight = (0.3 x 0.3 x 3.0)m x 24kN/m³ = 6.5kN
138
12.3 COLUMN ANALYSIS 12.3.1 INTERNAL COLUMN - Column C/7 GROUND LEVEL
Ground level columns tributary area diagram Dead load Concrete slab = (4.16m x 3.42m) x 3.6kN/m² = 51.2kN
Total dead load = 51.2kN + 10.6kN + 41.6kN + 6.5kN = 110kN
Beam self weight = (4.16m + 3.42m)x 1.4kN/m = 10.6kN
Live Load
Brick wall = 4.16m x 10kN/m = 41.6kN
Concrete slab = (4.16m x 3.42m) x 1.5kN/m² = 21.3kN
Column self weight = (0.3 x 0.3 x 3.0)m x 24kN/m³ = 6.5kN 139
12.3 COLUMN ANALYSIS 12.3.1 INTERNAL COLUMN - Column C/7
Ultimate Load Total dead load = 34.6kN + 109.7kN + 110kN = 254.3kN Total live load = 7.1kN + 21.3kN + 21.3kN = 49.7kN
Ultimate dead load = 254.3kN x 1.4 = 356kN
Ultimate live load = 49.7kN x 1.6 = 79.5kN
Total ultimate load = 356kN + 79.5kN = 435.5kN
140