Civil Engineering/ETABS

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Question
dear sir,
thanks for your answer.. now i'm really relieved..
sir usually displacements increases from hard soil to soft soil.
but my results are decreasing that is hard soil is having large displacement. i tried in STAAD Pro. with exact same inputs i'm getting correct result i.e soft soil with higher displacement.
In ETABS i couldnt find the fault... is there any way to find ?

thanks in advance

Answer
Dear Manju

As I stated before you can assign springs with defined stiffness to foundation nodes. But you must remove support restraints first. Don't have doubt when reducing spring stiffness the displacements increase.

Please try it and contact me again.

Regards
BEH  

Civil Engineering

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Babak Esmailzadeh Hakimi

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I can answer questions in Structural Engineering, Earthquake Engineering, Project Management and Project Control topics!

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I am experienced in the area of earthquake engineering in electrical power industry, i.e. Lifeline Earthquake Engineering. My focus has been on structural seismic design of power installations. Recently I have got involved in project management in the category of constructional engineering.

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Bs degree in Civil Engineering from Ferdowsi University ,1988, Mashhad Iran, Ms degree in Earthquake Engineering, Sharif University of Technology, 1993, Tehran, Iran

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