Structural Modelling using Etabs 2018
AIM : To create architectural drawings for a G+7 residential building in zone 5
INTRODUCTION :
The structural modelled with provisions of IS 1893, IS 13920 and IS 875 part 2
Materials taken as
- Concrete M30
- Steel HYSD 415, HYSD500
Section sizes taken as
- Beam 300x400
- Column 400x900
- Column 600x600
- Slab 150mm
- Shearwall 300mm
Live load for taken as IS 875 Part 2
Time period is calculated using 0.09*h/`sqrtd` and got time period as 0.486sec
PROCEDURE :
- Open etabs and enter grid data
- Assign Storeys
- Add new material property
- Create Beams, Columns, Slabs, Walls
- Now draw Beams, Columns, Slabs, Shear walls according to the given plan
- Add load patterns
- Assign Live loads
- Assign Brick wall load
- Water tank assigned at mumty level
- Assign Mass source
- Select floor and assign "Diaphragms
- Define Model cases
- Check model and Run analysis
- Save this model into 2 other files. Total three files are created in which one model has full moment is taken, in second model gross moment is taken and third model analysed for response spectrum
- For Response spectrum analysis - Define response function and load cases
Add load cases as shown below
- Define load combinations and check for RSX, RSY
- Check and Run analysis
RESULTS :
Go to display and click on show tables for structure output
Model 1 : Full moment model results
Storey displacement
Model 2 : Gross moment model results
Storey displacement
Model 3 : Response spectrum analysis results
Modified scale factors
Storey displacement
