[quote user="Sye"]Which software is this related to ? Can you please upload the file ? On a general note, even before you get into the design part, please check the column forces and see if you are getting any unrealistic values or not. Check the displacements too and see if there are any abnormal values. If these are OK then check the controlling parameters for the design. If all of these look OK and the design is still failing, you may have to go for a bigger section. However one can only comment on that after taking a look at the model file.
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