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JensenBreck

Eurocode 2 concrete stress-strain curve in SAP2000

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Hi,

    

I've noticed there is a difference between the predefined stress-strain curve in SAP2000 v16 for concrete (in Nonlinear Material Data) and the one specified by Eurocode 2. For instance the curve in SAP2000 has a maximum at the characteristic compressive cylinder strength while Eurocode 2 states that the mean value of the cylinder compressive strength should be used as a maximum while performing a nonlinear analysis. There is also a difference in the compressive strain values corresponding to the maximum and ultimate compressive strength between table 3.1 in EC2 and the values used in SAP2000. I can't remember exactly but I think I've seen the same difference in a recent ETABS version. 

Does anyone know why is this so? Am I missing something?

Please help.
Thanks!
I didn't find the right solution from the Internet.
References:http://www.eng-tips.com/viewthread.cfm?qid=393614

 

3d medical animation

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