Project 1

1. Design a multi-storey Residential Building located in Bangalore using STAAD Pro Connect Edition. The specification must be as follows:

    

Building floors	G + 6 + R
Plan dimension	B = 25m ,  L = 16m
Storey Height	h = 3.5m
Soil	Hard soil
Use	Residential Purpose
Safe Bearing Capacity	180 kN/m2
Maximum slab thickness	150mm

Assume suitable sections for structural elements. Follow IS456, IS1893 and IS 875

1. Prepare a Design Basis Report for the project
2. Create structural model using STAAD Pro Connect Edition
3. Prepare DL, LL, WL and EQL load calculations as per IS 875 standards
4. Design slab element using MS – Excel
5. Design beam and column element using STAAD RCDC. Attach the design calculation report.
6. Design Foundations using STAAD Foundation.
7. Prepare bar bending schedule for beam and column using STAAD RCDC
8. Attach necessary sketches and drawings wherever required.
9. All stipulations, assumptions and design parameter must adhere to Indian Standards

Aim: To Design a multi-storey Residential Building located in Bangalore using STAAD Pro Connect Edition

Procedure:- 

1 Prepare a Design Basis Report for the project

Let the Parameter be,
Unit weight of materials
RCC =25 KN/m3
PCC =24 KN/m3
Cement Concrete Screed =20 KN/m3
Cement Masonary Units =22 KN/m3
Structural Steel =78.5 KN/m3
Soil = 18 KN/m3
SBC =180 KN/m2

as per IS 875 part2 Floor Slab

Dead Load
{Dead load=Volume x unit weight of RCC  Unit weight of RCC=25 KN/M^3}
Floor slab

Slab weight = 3.75 KN/m2 (0.15m×25KN/m3)

Partitions = 1.5 KN/m2

Floor Finish = 2.5 KN/m2

Miscellaneous = 1 KN/m2

Total Floor Load = 8.75 KN/m2

Roof slab

Slab weight = 3.75 KN/m2(0.15m×25KN/m3)

Insulations and Water Proofing = 0.5 KN/m2

MEP Services = 0.5 KN/m2

Miscellaneous = 0.5KN/m2

Total Roof Load = 5.25 KN/m2

Live Load
Floor slab

Common Corridor = 3 KN/m2

Total Floor Load = 3 KN/m2

Roof slab

Accessible Roof = 1.5KN/m2

Total Roof Load = 1.5 KN/m2

2 Create structural model using STAAD Pro Connect Edition

Now create the building in STAAD Pro connect

3 Prepare DL, LL, WL and EQL load calculations as per IS 875 standards

Dead Load

Live Load
  

Excel Calculation of Seismic Load (IS 1893 Part l)

STAAD Pro Calculation of Seismic Load (IS 1893 Part l)

 Assignigng the Seismic Load

Calculation of Wind Load (IS 875 - Part 3)

Wind load calculation -(IS 875 Part 3)

Step 1:Determine deign wind speed

Vz=Vbxk1xk2xk3xk4

where Vb-basic wind speed, k1-Probability factor ,k2- Terrain factor , k3- Topography factor 

k4- Importance factor 

Step 2:Determine deign wind pressure 

Pz=0.6 Vz^2

Step 3:Determine wind load

F=CfxAexPd

Cf- force coefficient 

Ae- effective frontal area for 1m width

Assign the exposure factor

 

 

 

 

 

 

Design of slab element using MS – Excel

Load Combinations

5 Design beam and column element using STAAD RCDC. Attach the design calculation report.

Open RCDC in STAAD Pro for desiging column

Design settings

 

Reinforcement settings

Detailing and drawing

To Run the analysis
First specify the loads > Click Auto Design

Result

 Open RCDC in STAAD Pro for designing beam

RCDC Beam Design

Design Output

6 Design Foundations using STAAD Foundation.

7 Prepare bar bending schedule for beam and column using STAAD RCDC

BBS

BBS

8 Attach necessary sketches and drawings wherever required.