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Dear Colleagues, Which type of steel sections is more economical to be used for design of steel structures; American sections or European sections? Thanks for your feedback in advance.

Dear Colleagues, I'm currently preparing FEA model for steel circular tank tank. I would like to know how to calculate the area spring stiffness to simulate full contact between : 1- Tank bottom plate and RC beam 2- Tank Bottom plate and sand soil. Thanks for your support and advice in advance.

Dear Colleagues, I'm currently preparing FEA model for steel circular tank tank. I would like to know to to calculate the area spring stiffness to simulate full contact between : 1- Tank bottom plate and RC beam 2- Tank Bottom plate and sand soil. Thanks for your support and advice in...

Thanks TLHS & JStephen for your feedback Unfortunately, analysis of tank by using SAP2000 is a client request and i have to follow!!

Thanks a lot JStephen for your valuable feedback..... The purpose of SAP2000 model is to check the stresses due to Aluminum dome roof reactions in shell, wind girder and bottom. Also, there is another problem in the "already" fabricated annular plate that outer projected part is only 80mm...

Dear Colleagues, I'm currently preparing SAP2000 model for circular steel tank with 107 meters diameter. Actually i need you advice how to model restraints for base joints knowing that tank is rested on ring beam under shell area and remaining bottom area it's rested on soil. How to calculate...