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Erratical Results Of ETABS in Longitudual Reinforcements

Erratical Results Of ETABS in Longitudual Reinforcements

Erratical Results Of ETABS in Longitudual Reinforcements

(OP)
hi all,

yesterday I have encountered a very strange outputs of etabs. I was analysing single storey structure, load case was only with gravity uniform loads on floors (rigid diaphragm), everything went so normal run the analysis and after that i run the design/check( concrete frame,EuroCode-2) i get some longitudual reinforcement outputs for columns on the screen thinking that these are normal results program supposed to create. Then I added some additional(4) storeys on top of the ground floor (load case and code was same).  But even now the structure was comprised of 5 floor, the longitudual reinforcement was same with last result on the ground floor columns.

It made me think that longitudual reinforcement is provided only with min percentage specified on code(Eurocode-2) as long as concrete cross section bears all the axial-load capacity.

Any idea??


Best Regards,

RE: Erratical Results Of ETABS in Longitudual Reinforcements

Of course, you set the min & max value for the percentage of reniforcement.

Pls change the min value to 0.001 and check the steel requirement.

Hope this helps

Cheers

RE: Erratical Results Of ETABS in Longitudual Reinforcements

you need to check the min values for column. If that is not being exceeded your output will not change. try reducing column size.

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