35
Ø60
35 35 625 345
820
35
6mm gap between decking to provide greater ventilation and allow for expansion and contraction
35
2890 section
450
AREA D 0.17m2
AREA A 24.0m2
ENGAGED PIER 2 TRIBUTARY AREA 3.77m2
FOOTING 5 TRIBUTARY AREA 4.93m2
FOOTING 6 TRIBUTARY AREA 3.83m2
35
Staggering of decking boards to allow for expansion and contraction. Decking lengths: 450 2750 1375 3175 2275 5450
ENGAGED PIER 1 TRIBUTARY AREA 1.93m2
AREA E 0.75m2
AREA B 6.24m2
elev
4150
2
4
section
A
3
35
35
1890
4780
elev
1
section
Scale: 1:50
120 120 120 225
ELEVATION 1
520
Scale: 1:50
Construction as Alchemy ARCH10002
1950
C L
1950
6740
2019 Semester 1
Studio Leader: Yi Lobachevsky Studio: 03
C L
430
120 120 120 225
150
Groundline
4850
ELEVATION 2
FOOTING 4 TRIBUTARY AREA 3.82m2
For edge detailing see B3
610
4 3 2 1
FOOTING 2 FOOTING 3 TRIBUTARY AREA TRIBUTARY AREA 4.49m2 5.30m2
230 x 230 engaged pier to provide support for 75 wide bearer
Edge detailing 3 / 35 x 120 decking boards stacked vertically with 13mm gap to cover bearers and joists
1790 610
2400
350 x 230 engaged pier to provide support for 150 wide bearer
C L
DECK AREA PLAN
B
Scale: 1:50
1890
AREA C 0.34m2
Mitre joint for edge detailing, strengthened with splines
6740
1790
0
35
1
DECK PLAN
150 150 150 150
FOOTING 1 TRIBUTARY AREA 1.93m2
2
805
100 100 205
2400
35
A
610
section
Concrete stairs 1890mm in length, 4 risers 152mm, 3 going 300mm as per AS1657
N
5520
Decking board cut to follow curve of brick wall, 10mm distance, max cantilever
900
ADDITIONAL INFORMATION: - Decking boards to be fixed by 75mm x No.14 Type 17 Batten Screw - Bolt holes to be drilled at a size of bolt diameter + 10% - Sawn upperface to be used for greater long-term weathering - 3mm arris used for top corners of decking - End-grain to be sealed after sawing with a suitable sealer such as Mobilcer-M Wax Emulsion
900
35
35
1280
780
35
450
35
B
35
355
Ø60 315 405
405
Decking cut-out to allow growth of tree
100 3395
815
5520
Scale: 1:50
Name: Will Scobie Student Number: 892855
Part 1B : Relaxation Deck
B1
1550
150
355
400
B
35 x 120
780 400
150 x 50
C LC L
450
100
450
JOISTS
450 450
C L
5450
3400
3700
450 450 450
C L
BEARERS
2 / 200 x 75
450
C L
*B (175 x 75)
C L
F14 unseasoned Red Ironbark
450
Stair width
1890
Stair length 400
Pad footing spacing
400
1090 400
Joist span and cantilever
425
Bearer spacing
460
Joist lengths
75
C L
elev
1
290
400
1770
1880
150
C L
1550
1800
1950
2340
section
B
400 150
C L
1550
1800
1950
150
C L
355
430
Scale: 1:50
Studio Leader: Yi Lobachevsky Studio: 03
cross section: 400 x 400 depth: 200
Name: Will Scobie Student Number: 892855
Ref. Table: 6 - Deck Joists - Unseasoned
single span: 3700 *(2300) maximum cantilever: 925 *(575) continuous span: 3900 maximum cantilever: 975
Floor Load Width [FLW]: 2400
Height above ground 225 *(250) Ref. Table: AS2870
Concrete
Tributary area: Pad footings able to support 10m2 Maximum actual tributary area is 5.30m2
Ref. Table: AS2870 Residential Slabs and Footings
height: 635 (*660)
PAD FOOTINGS
maximum cantilever: 450
Varies- N/A joists/ bearers 1950 3800
Ref. Table: 7 - Deck Bearers Unseasoned Timber
DECK AREA CALCULATIONS: (see B1 for Area Plan) Area A = 4404 x 5450 = 24m2 Area B = 2270 x 2750 = 6.24m2 Area C = 370 x 900 = 0.34m2 Area D = 380 x 450 = 0.17m2 Area E = 890 x 850 = 0.75m2
4330
BEARER AND JOIST LAYOUT PLAN
2019 Semester 1
cross section: 100 x 100
Red Ironbark used to due to its high strength grade and durability. https://www. woodsolutions.com.au/ wood-species/ ironbark-red
Concrete
400
100
Bearer length
400
STUMPS
single span: 1300 *2500 maximum cantilever: 325 *625 continuous span: 1800
1950
770
Bearer span and cantilever
gap between boards (mm): 6
F14 un-seasoned Red Ironbark
C L
450
C L
300 300 300
450
A
A
C L
section
section
Construction as Alchemy ARCH10002
450
Ref. Table: 4 -Allowable Decking Board Spans
450
400
100 280 770
N/A
*F22 unseasoned Red Ironbark used for single-span joist
C L C L
2
Bearer B: 75 x 150 bearer used due to shorter span, adjusted height of stump totaling 820
2275
2750
3400
elev
N
F14 unseasoned Forest Red Gum
C L 300 C LC L 850
570
110
100
MEMBER SCHEDULE DECKING
Joist spacing
230
230
Pad footing spacing
Hung joist length
section
Engaged piers spacing
Bearer B length and span
F22 single-span joist used due to deck cut-out, 2820 length with 365 and 355 cantilever
OTHER INFORMATION + REFERENCE TABLE
400
1800
430
MAX. ALLOWABLE SPAN (mm)
1740
150
C L
C L
925
350
1950
F22 joist used due to small member cantilever and hung joist
Shorter joist span (1770) due to bearer being centred on engaged pier
Bearer span and cantilever with engaged pier
1690
1800
C L
MAX. ALLOWABLE SPACING (mm)
230 Engaged pier and pad footing spacing
380
150
1950
[e.g. F7 unseasoned Cypress]
Joist span and cantilever
455
HEIGHT (mm) x WIDTH (mm)
Bearer spacing
4785 C L
MATERIAL (stress grade + timber type)
Total joist length
Total Area = A + B + C + D - E = 24m2 + 6.24m2 + 0.34m2 + 0.17m2 - 0.75 = 30m2
Part 1B : Relaxation Deck
B2
6mm spacing between decking boards
F14 unseasoned Red Ironbark 150 x 50 joists spaced at 450 for maximum efficiency
75 120 120 120
F14 unseasoned Red Forest Gum 35 x 120 4.5kN point load decking boards only span 400 due to max joist spacing of 450
150
35 150 200
610
610
200
150
225
225
35
Hung joist used to fix edge detailing
120 120 120
Joist header used to fix edge detailing
225
Edge detailing for cut-out surrounding tree only two 35x120 decking boards deep
Edge detailing 3 / 35 x 120 decking boards stacked vertically with 13mm gap to cover bearers and joists
Groundline
100x100 cross section concrete stump
2 / 200 x 75 F14 un-seasoned Red Ironbark used due to large spanning capacity creating efficiency of design
400
400 x 400 x 200 pad footing
SECTION A SHOWING EDGE
2019 Semester 1
See B2 for dimension on stairs and strip footings supporting stairs
Pad footing supporting Bearer B offset due to shorter bearer span and spacing of stairs
SECTION B SHOWING EDGE
Scale: 1:20
Construction as Alchemy ARCH10002
200
600
200
600
400
Groundline
Scale: 1:20
Studio Leader: Yi Lobachevsky Studio: 03
Name: Will Scobie Student Number: 892855
Part 1B : Relaxation Deck
B3
Large deck surface area enables multi-functional use of space as both a deck for relaxing but potentially as a performative space as a stage for various events
Stairs 1890 wide to allow for two-directional foot-traffic.
Decking to be coated with oil based stain and water repellant to prevent staining from food or drink
Tree interacts with deck to provide shading from afternoon sun Side of stairs runs flush with deck edge detailing to provide a continuous, aesthetic surface Deck cut-out engages with site-plan and allows for future growth of tree
Cantilevered section provides seating aligned with alcove and curve in brick wall to provide a space for contemplation
Deck allows acces for interaction with the tree at ground level, producing two separate spaces
3D HERO VIEW
Construction as Alchemy ARCH10002
2019 Semester 1
Studio Leader: Yi Lobachevsky Studio: 03
Name: Will Scobie Student Number: 892855
Part 1B : Relaxation Deck
B4
Inefficiency of joists due to deck cut-out
F22 stress grade joist used to provide greater structural support for small individual member Joist hangers used to support cross-members to create opening for tree
Double joists used to provide greater structural support around opening
Concrete stairs 1890mm in length, riser 152mm, going 300mm as per AS1657 F22 stress grade joist used to enable greater singlespan and cantilever due to the deck cut-out
400 x 900 x 600 Reinforced concrete footings for stairs
PERSPECTIVE 1
Concrete stairs extend 160 below ground,preventing slippage of earth around base
Sculpture to be placed in alcove to create a feature that interacts with sunlight passing through gaps in the brick wall
PERSPECTIVE 2
Hung joist used to fix deck edging
Pad footing offset in comparison to other pad footings on southern side due to shorter bearer length and position of stairs
Header joist used to to fix deck edging
Cut-out around tree supported by joist hangers
10 mm gap between bearers and brick wall
Top brick of engaged pier cut to height 50mm to support bearer
Engaged piers supporting bearers
PERSPECTIVE 3 Construction as Alchemy ARCH10002
230 x 230 engaged pier
Mitre joint used on each edge detailing corner, strengthened with splines
Efficient deck design using 6 pad footings and 2 engaged piers
Double joist used for extra structural integrity supporting the cut-out
230 x 350 Engaged pier
Brick wall footings
PERSPECTIVE 4 2019 Semester 1
Studio Leader: Yi Lobachevsky Studio: 03
Name: Will Scobie Student Number: 892855
Part 1B : Relaxation Deck
B5