Structural Modelling using Etabs 2018

Aim: To run a modal response spectrum analysis and check analysis results of the Etabs model for the inter-story drift requirements, vertical and planar irregularities, minimum shear wall requirements, maximum axial load ratio for column and shear walls, an effective moment of inertia for beams

Procedure:

Open new Etabs file

set the modal initialization as shown

Next select edit grid

Now set the grids as shown

Now select the edit story data

Now set the storys as required

now we get the grids as shown

Now define the material properties as shown below

Now define the section properties as shown below

Now define the slab sections as shown

Now define the wall sections

by using quick beam,quick column and floor options draw the building as shown below

Define load patterns and mass source

Define pier

Assign live loads

Assign wall loads

Define response spectrum

Now define load combinations for concrete

check the model and run analysis

check the base reactions table

check the modal participation ratio

Result: