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Structural Analysis And Design of
Multi-storeyed Building
Project members:
Rajesh Dhakal (066/BCE/57)
Sandeep Shrestha (06...
Objectives
• Learn the concept of lateral and vertical loading
on the building.
• Identification of structural arrangement...
Major Scope
• Seismic coefficient method is used
• Code of practices: IS456:2000,
IS875:1987(Part 1,2), IS1893:2000,
IS139...
Salient Features
• Name: Bharbhacho Complex
• Location: Dhudhpati, Bhaktapur
• Building Type: Commercial
• System: RCC fra...
Preliminary Design
• Design of Slab :
as per deflection control
Slab Depth Effective depth (d) Total depth (D)
Without sec...
Design of beam:
as per deflection control
Beam type Width (b) Total depth (D)
Primary Beam 400 mm 550 mm
Secondary beam 25...
• Design of column
– Loaded from slab, wall, beam and self weight of
column considered
– Factored load calculated
– 20% EQ...
Manual calculation
• Dead Load
– Slab
– Beam
– Wall
– column
• Live load
• Centre of mass
• Centre of rigidity
• Eccentric...
SAP Analysis
Design of Structural members
• Design of Slab
Xm Ym Xs Ys
Ast
required
112.25 98.04 141.51 132.27
Ast
provided
452.36 376....
Slab Detailing
Torsional Detail in Slab
Design of Staircase
Staircase
Main reinforcement Distribution bar Development length
Required Provided Required Provided R...
Staircase Detailing
Design of Beam
Beam Type
Support reinforcement Mid reinforcement
Top bar Bottom bar Top bar Bottom bar
Primary beam (400x5...
Beam Detailing
Contd.
Design of Column
Column Types Reinforcement percent
Small (400x400) 8-28 Φ 2.43 %
Big (600x600) 12-25 Φ 1.64 %
Ramp (500x6...
Column Detailing
Design of Basement wall
Reinforcement pattern Face Reinforcement
Vertical Both 16 mm Φ @ 190 mm
Horizontal
Front 8 mm Φ @1...
Detailing of Basement wall
Design of Lift
Lift Types
Vertical Reinforcement Horizontal Reinforcement
Required Provided Required Provided
Capsule 14 Φ...
Lift Detailing
Design of Foundation
Shorter span reinforcement Longer span reinforcement
20 mmφ @ 175 mm c/c 20 mmφ @ 200 mm c/c
Raft Footing Detailing
THANK YOU
Multi storey building design of 7 storey commercial building
Multi storey building design of 7 storey commercial building
Multi storey building design of 7 storey commercial building
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Multi storey building design of 7 storey commercial building

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KHWOPA COLLEGE OF ENGINEERING. ( TRIBHUWAN UNIVERSITY)

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  • Engr. Razes Dhakal !! if possible, plz send me the copy of this stuff on: muhammadwasim936@yahoo.com
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Multi storey building design of 7 storey commercial building

  1. 1. Structural Analysis And Design of Multi-storeyed Building Project members: Rajesh Dhakal (066/BCE/57) Sandeep Shrestha (066/BCE/70) Santanu Shrestha (066/BCE/73) Shyam Kumar Sinkemana (066/BCE/80) Supervisor: Asst. Prof. Prachand Man Pradhan
  2. 2. Objectives • Learn the concept of lateral and vertical loading on the building. • Identification of structural arrangement of the plan. • Modeling of the building for the structural analysis. • Detail structural analysis using SAP 2000. • Sectional design of structural components. • Structural detailing of members and the system.
  3. 3. Major Scope • Seismic coefficient method is used • Code of practices: IS456:2000, IS875:1987(Part 1,2), IS1893:2000, IS13920:1993, SP16,SP34 • The bearing capacity of foundation is assumed to be 140 kN/m2. • The project does not take into account the soil pressure in elements at the basement as well as the possible impact loads due to vehicles
  4. 4. Salient Features • Name: Bharbhacho Complex • Location: Dhudhpati, Bhaktapur • Building Type: Commercial • System: RCC framed Structure • No. of storeys: 7 • Floor ht: 3.3m • Foundation type: Raft foundation
  5. 5. Preliminary Design • Design of Slab : as per deflection control Slab Depth Effective depth (d) Total depth (D) Without secondary beam 190 mm 220 mm With secondary beam 120 mm 150 mm
  6. 6. Design of beam: as per deflection control Beam type Width (b) Total depth (D) Primary Beam 400 mm 550 mm Secondary beam 250 mm 300 mm
  7. 7. • Design of column – Loaded from slab, wall, beam and self weight of column considered – Factored load calculated – 20% EQ load considered – Equating total load with Puz=0.45fckAc+0.75fyAst – Assuming Pt=3% – Ag calculated and size of column adopted Column Type Dimension (B×D) mm2 Type I 400×400 Type II 400×400 Type III 500×500
  8. 8. Manual calculation • Dead Load – Slab – Beam – Wall – column • Live load • Centre of mass • Centre of rigidity • Eccentricity
  9. 9. SAP Analysis
  10. 10. Design of Structural members • Design of Slab Xm Ym Xs Ys Ast required 112.25 98.04 141.51 132.27 Ast provided 452.36 376.967 376.967 376.967
  11. 11. Slab Detailing
  12. 12. Torsional Detail in Slab
  13. 13. Design of Staircase Staircase Main reinforcement Distribution bar Development length Required Provided Required Provided Required Provided Doglegged 12Φ 559c/c 12Φ 200 c/c 8 Φ@279c/c 8 Φ@270c/c 810 mm 820 mm Openwell 1st flight 12Φ391.65 c/c 12Φ300 c/c 8 Φ@279c/c 8 Φ@270c/c 483 mm 485 mm 2nd flight 12Φ398.26 c/c 12Φ195c/c 8 Φ@279c/c 8 Φ@270c/c 600 mm 700 mm
  14. 14. Staircase Detailing
  15. 15. Design of Beam Beam Type Support reinforcement Mid reinforcement Top bar Bottom bar Top bar Bottom bar Primary beam (400x550) 5-25 Φ 4-20 Φ 2-20 Φ 2-25 Φ Stair beam (400x 550) 2-20 Φ 2-20 Φ 2-20 Φ 4-20 Φ Secondary beam (250x300) 3-16 Φ 2-16 Φ 2-16 Φ 3-16 Φ
  16. 16. Beam Detailing
  17. 17. Contd.
  18. 18. Design of Column Column Types Reinforcement percent Small (400x400) 8-28 Φ 2.43 % Big (600x600) 12-25 Φ 1.64 % Ramp (500x600) 12-28 Φ 2.46 %
  19. 19. Column Detailing
  20. 20. Design of Basement wall Reinforcement pattern Face Reinforcement Vertical Both 16 mm Φ @ 190 mm Horizontal Front 8 mm Φ @160 mm Inner 8 mm Φ @320mm
  21. 21. Detailing of Basement wall
  22. 22. Design of Lift Lift Types Vertical Reinforcement Horizontal Reinforcement Required Provided Required Provided Capsule 14 Φ @ 109.36 14 Φ @ 100 12 Φ @ 253.85 12 Φ @ 250 Middle capsule 14 Φ @ 331.14 14 Φ @ 320 12 Φ @ 253.85 12 Φ @ 250 Service 14 Φ @ 367.67 14 Φ @ 350 12 Φ @ 253.85 12 Φ @ 250
  23. 23. Lift Detailing
  24. 24. Design of Foundation Shorter span reinforcement Longer span reinforcement 20 mmφ @ 175 mm c/c 20 mmφ @ 200 mm c/c
  25. 25. Raft Footing Detailing
  26. 26. THANK YOU

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