Challenge

Modelling of 25 storey building with the specified properties using ETABS

PROCEDURE TO BE FOLLOWED:

Open the ETABS software
click the file menu and choose to create a new modal option
after choosing a new model a dialogue box will appear
choose the built in setting option and select the display unit
after the modal is intialized select the grid and storey inputs from the new modal quick templates
in this dialogue choose the custom grid spacing and custom storey dara which is used to provide the inputs specified
Enter X grid data at a distance of 4 metre and Y grid data as 4m at distance
Now edit the stories by using the user defined storey input by assigning plinth as 1.5m and all othe floors as 3m

select material properties
define the material of concrete as m30 and for longitudinal rebars as fe500 and for shear rebars as fe415
Select section property under define
click the frame section and creat a new property as beam with depth 400 and width 300
define column as 800*800
click the shell section and add a new property for slab of thickness 150mm
now draw the beam column and slabs with the help of quick draw tool
select assign and click on pin joint support for the base

now define the load patterns:\
Go to define, select load patterns, define dead load,live load, brick load, earthquake load at X axis and Y axis at +ve and -ve direction

click on shell load under the assign tab
click on live load and give value as 3kn/m2
click on apply
similarly add live load of 10kn/m2 on all the beam
for that select all the beams from select object type beams
goto the frame load and click on the distributed load and enter the value as 10kn/m2

Now click on display>show tables> analysis results> structure output> modal information> modal periods and frequencies
we get the result for time period at x-axis and y-axis and all

The modelling is completed and analysed.

Ship work like this
in your own course.