Structural Analysis & Design of MSB
description
Transcript of Structural Analysis & Design of MSB
![Page 1: Structural Analysis & Design of MSB](https://reader030.fdocuments.net/reader030/viewer/2022020401/56d6beb61a28ab3016934a04/html5/thumbnails/1.jpg)
Structural Analysis And Design of
Multi-storeyed Building
![Page 2: Structural Analysis & Design of MSB](https://reader030.fdocuments.net/reader030/viewer/2022020401/56d6beb61a28ab3016934a04/html5/thumbnails/2.jpg)
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.
![Page 3: Structural Analysis & Design of MSB](https://reader030.fdocuments.net/reader030/viewer/2022020401/56d6beb61a28ab3016934a04/html5/thumbnails/3.jpg)
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
![Page 4: Structural Analysis & Design of MSB](https://reader030.fdocuments.net/reader030/viewer/2022020401/56d6beb61a28ab3016934a04/html5/thumbnails/4.jpg)
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
![Page 5: Structural Analysis & Design of MSB](https://reader030.fdocuments.net/reader030/viewer/2022020401/56d6beb61a28ab3016934a04/html5/thumbnails/5.jpg)
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
![Page 6: Structural Analysis & Design of MSB](https://reader030.fdocuments.net/reader030/viewer/2022020401/56d6beb61a28ab3016934a04/html5/thumbnails/6.jpg)
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
![Page 7: Structural Analysis & Design of MSB](https://reader030.fdocuments.net/reader030/viewer/2022020401/56d6beb61a28ab3016934a04/html5/thumbnails/7.jpg)
• 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
![Page 8: Structural Analysis & Design of MSB](https://reader030.fdocuments.net/reader030/viewer/2022020401/56d6beb61a28ab3016934a04/html5/thumbnails/8.jpg)
Manual calculation
• Dead Load – Slab
– Beam
– Wall
– column
• Live load
• Centre of mass
• Centre of rigidity
• Eccentricity
![Page 9: Structural Analysis & Design of MSB](https://reader030.fdocuments.net/reader030/viewer/2022020401/56d6beb61a28ab3016934a04/html5/thumbnails/9.jpg)
SAP Analysis
![Page 10: Structural Analysis & Design of MSB](https://reader030.fdocuments.net/reader030/viewer/2022020401/56d6beb61a28ab3016934a04/html5/thumbnails/10.jpg)
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
![Page 11: Structural Analysis & Design of MSB](https://reader030.fdocuments.net/reader030/viewer/2022020401/56d6beb61a28ab3016934a04/html5/thumbnails/11.jpg)
Slab Detailing
![Page 12: Structural Analysis & Design of MSB](https://reader030.fdocuments.net/reader030/viewer/2022020401/56d6beb61a28ab3016934a04/html5/thumbnails/12.jpg)
Torsional Detail in Slab
![Page 13: Structural Analysis & Design of MSB](https://reader030.fdocuments.net/reader030/viewer/2022020401/56d6beb61a28ab3016934a04/html5/thumbnails/13.jpg)
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
![Page 14: Structural Analysis & Design of MSB](https://reader030.fdocuments.net/reader030/viewer/2022020401/56d6beb61a28ab3016934a04/html5/thumbnails/14.jpg)
Staircase Detailing
![Page 15: Structural Analysis & Design of MSB](https://reader030.fdocuments.net/reader030/viewer/2022020401/56d6beb61a28ab3016934a04/html5/thumbnails/15.jpg)
![Page 16: Structural Analysis & Design of MSB](https://reader030.fdocuments.net/reader030/viewer/2022020401/56d6beb61a28ab3016934a04/html5/thumbnails/16.jpg)
![Page 17: Structural Analysis & Design of MSB](https://reader030.fdocuments.net/reader030/viewer/2022020401/56d6beb61a28ab3016934a04/html5/thumbnails/17.jpg)
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
![Page 18: Structural Analysis & Design of MSB](https://reader030.fdocuments.net/reader030/viewer/2022020401/56d6beb61a28ab3016934a04/html5/thumbnails/18.jpg)
Beam Detailing
![Page 19: Structural Analysis & Design of MSB](https://reader030.fdocuments.net/reader030/viewer/2022020401/56d6beb61a28ab3016934a04/html5/thumbnails/19.jpg)
Contd.
![Page 20: Structural Analysis & Design of MSB](https://reader030.fdocuments.net/reader030/viewer/2022020401/56d6beb61a28ab3016934a04/html5/thumbnails/20.jpg)
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 %
![Page 21: Structural Analysis & Design of MSB](https://reader030.fdocuments.net/reader030/viewer/2022020401/56d6beb61a28ab3016934a04/html5/thumbnails/21.jpg)
Column Detailing
![Page 22: Structural Analysis & Design of MSB](https://reader030.fdocuments.net/reader030/viewer/2022020401/56d6beb61a28ab3016934a04/html5/thumbnails/22.jpg)
![Page 23: Structural Analysis & Design of MSB](https://reader030.fdocuments.net/reader030/viewer/2022020401/56d6beb61a28ab3016934a04/html5/thumbnails/23.jpg)
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
![Page 24: Structural Analysis & Design of MSB](https://reader030.fdocuments.net/reader030/viewer/2022020401/56d6beb61a28ab3016934a04/html5/thumbnails/24.jpg)
Detailing of Basement wall
![Page 25: Structural Analysis & Design of MSB](https://reader030.fdocuments.net/reader030/viewer/2022020401/56d6beb61a28ab3016934a04/html5/thumbnails/25.jpg)
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
![Page 26: Structural Analysis & Design of MSB](https://reader030.fdocuments.net/reader030/viewer/2022020401/56d6beb61a28ab3016934a04/html5/thumbnails/26.jpg)
Lift Detailing
![Page 27: Structural Analysis & Design of MSB](https://reader030.fdocuments.net/reader030/viewer/2022020401/56d6beb61a28ab3016934a04/html5/thumbnails/27.jpg)
Design of Foundation Shorter span reinforcement Longer span reinforcement
20 mmφ @ 175 mm c/c 20 mmφ @ 200 mm c/c
![Page 28: Structural Analysis & Design of MSB](https://reader030.fdocuments.net/reader030/viewer/2022020401/56d6beb61a28ab3016934a04/html5/thumbnails/28.jpg)
Raft Footing Detailing
![Page 29: Structural Analysis & Design of MSB](https://reader030.fdocuments.net/reader030/viewer/2022020401/56d6beb61a28ab3016934a04/html5/thumbnails/29.jpg)
THANK YOU