Design of combined footing for four randomly positioned columns

Project:www.sefindia.org
Component:Miscellaneous
Category:task
Priority:normal
Assigned:Unassigned
Status:active
Description

Dear Engineers,
We have a footing supporting four columns which are at random positions. How do we approach for design of such footing. It is appreciable, if we can get a standard method to solve this problem.
The thing is when we analyse the system (using plates and providing sub grade stiffness) in staad, we have abnormal results of Mxy ranging more than 541kNm.

Updates

#1 submitted by bubby_bond on Thu, 02/26/2015 - 08:59

"sub grade stiffness" may be replaced with "modulus of sub grade reaction" in the above description please