4 Storey Offive Bulding
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Transcript of 4 Storey Offive Bulding
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A 4-Storey Steel Office BuildingP re s e n t e d t o : D r. A n j a n B h o w m i c k
P re s e n t e d b y : B e ny a m e B a h i r u , J e s s i c a C a r m o s i n o , ( Ka r i s ) H o Yu e n C h e u n g , S a l v a t o re L e e G i u l i o n e , Ro b i n R a m i re z , A n d re w Ta m
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Quebec City• Located in North-Eastern
Quebec in the Saint-Lawrence River valley
• 2 ½ hour drive from Montreal
• Population: 765 000• Average high temperature:
22°C to 25°C• Average low temperature: -
13°C to -18°C• Last major earthquake: 1663
Charlevoix earthquake with a moment magnitude of between 7.3 and 7.9
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4 Storey Office BuildingDesign according to National Building Code of Canada (NBCC 2010) and the Canadian Standard for Design and Construction of Steel Building (CSA-S16-09).
Plan Dimensions: Length = 55m, Width = 30m
First Floor Height: 5.8m
Typical Storey Height: 3.75m
Total Elevation: 17.05m (low-rise)
CBF’s on either side of building to resist lateral loads (wind & earthquake)
2 staircases: East & West side of building
Designed the office building by determining the live, dead, snow, wind, and earthquake load that the structure must resist under specific conditions that vary in Quebec City.
Also designed the CBF’s to satisfy safety standards.
AutoCAD for the structural and architectural drawings.
ETABS for analysis of the structure.
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AssumptionsDead Load Calculation: 10% steel allowance
Importance Factor, I: 1.0 (normal building)
Open terrain environment
CBF stiffness, K = 1
Building is situated on top of very dense soil and soft rocks -> Class C
No storage load for each floor
Considered the beams as laterally supported
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IntroductionObjective: A four story office building
Location: Quebec City, Quebec
Climatic Data:
Table1: Climatic Data of Québec City (Appendix C – Climate Data)
Province and
Location
Elev. (m)
Design Temperature
Degree- DaysBelow 18oC
Snow Load,
kPa 1/50
HourlyWind
Pressures, kPa
Seismic Data
January July 2.5%
2.5% oC
1%oC
DryoC
Wet oC
Ss Sr 1/50 Sa(0.2) Sa(0.5) Sa(1.0) Sa(2.0) PGA
Québec 120 -25 -28 28 22 5080 3.6 0.6 0.41 0.55 0.32 0.15 0.052 0.30
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Load CalculationsGround Floor 2nd Storey 3rd Storey 4th Storey Roof
Dead Load, kPa 4.51 4.51 4.51 4.51 1.045
Live Load, kPa 4.80 2.40 2.40 2.40 1.00
Snow Load, kPa - - - - 3.48
Wind Load E-W direction, kN - 47.30 37.18 37.18 18.89
Wind Load N-S direction, kN - 84.72 66.54 66.54 33.29
Earthquake Load E-W, kN - 222.91 367.03 511.15 151.83
Earthquake Load N-S, kN - 231.05 380.44 529.83 157.38
Table2: Load Calculations
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Structural Plan
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Structural Plan
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Structural
Plan in
East and
West
Direction
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Structural
Plan in
North and
South
Direction
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Selected Sections for Beams: Hand Calculations
Floor Ground 2nd Story 3rd Story Roof
Floor Beam W310x33 W310x28 W310x28 W310x33
Main Beam W530x74 W460x68 W460x68 W460x68
Edge Beam W410x54 W360x39 W360x39 W410x46
Table3: Selected Sections
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Selected Sections for Columns: Hand Calculations
Columns Section
Interior W310x118
Edge Horizontal W310x86
Edge Vertical W360x74
Corner W360x74
Table4: Selected Sections
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Elevation with Final Beam and Column Sections (ETABS)
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EAST AND WEST CBF
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NORTHAND SOUTH CBF
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Deflected Shape
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Deflected Shape 3D
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Mode Shape
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Architectural –Ground Floor Plan Layout
- 1 Security Desk- 1 Coffee Shop- 2 Staircases- 2 Entrances- 2 Washrooms
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Architectural –Typical Floor Plan Layout
- 1 Electrical Room- 1 Store Room- 2 Lunch Rooms- 2 Washrooms- 2 Conference Rooms- 2 Reception Areas- 2 Staircases- 2 General Manager
Office Rooms- 10 Office Rooms- 128 Cubical Offices
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Architectural Elevation- North
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Architectural Elevation- South
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Architectural Elevation- West
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Cost EstimationProject: 4 Story Office BuildingType of Work:Owner:Contactor:Period Ending:
Item Unit Estimated Quantity Unit Price Amount
Total W section Beam/Columns lb 504,890.32 $ 1.50 $ 757,335.48
Total HSS Section ft 263.82 $ 4.50 $ 1,187.19
Deliver Steel Members lump sum 1 $ 25,000.00 $ 25,000.00
Erection of Steel Members lump sum 1 $ 20,000.00 $ 20,000.00
Steel Deck square foot 71041.8 $ 6.50 $ 461,771.70
Slab Concrete cubic meter 471.9 $ 1,050.00 $ 495,495.00
Floor Finish square foot 71041.8 $ 8.03 $ 570,465.65
Wall (Brick) square foot 2936.39 $ 16.25 $ 47,716.34
Dry Wall Partition square foot 14734.39 $ 3.49 $ 51,423.02
Exterior Glass square meter 2625.7 $ 41.65 $ 109,360.41
Gravel cubic yard 0.566 $ 29.50 $ 16.70
HVAC System lump sum 1 $ 41,675.00 $ 41,675.00
Total $ 2,581,446.48 Table3: Cost Estimation
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