Modelling of 25 storey building with the specified properties using ETABS

1.Open new file in ETABS

2.Set the Indian Code and SI units

3.Provide the Grid data as per the Building plan requirement

4.Provide the Storey data , no of storeys

5.Define the material properties M30, Fe 415 ,Fe 500 ,Fe 550

6.Provide the Cross section of the Elements ( Beam ,Cloumn ,Slab)

7.Provide the Reinforcement data

8.Give the Property stiffness data as per IS 1893 - 2016 for Beams , Columns

9. Assigning the slab for all the storeies of the Building

10.Assign Pinned support to the Column bases

11.Assign Floor load = 3 KN/m2

12.Assign UDL for Beams = 10 KN/m

13.Assign Earthquake loads

14.Assign Mass source data for Earthquake loading

15.Provide the Load combinations (1 Dead load + 0.25 Live load)

As per the code

if live load is < 3 KN/m2 then the multiplier for L.L is taken as 0.25

if live load is > 3 KN/m2 then the multiplier for L.L is taken as 0.50

16.Assign Diaphragm

17. Now apply the MODAL CASE DATA

18.Run the Analysis

19.Final results of the Modal Analysis are obtained

20.Material list after analysis