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PostPosted: Thu Nov 24, 2016 2:24 pm 
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Joined: Sun Jan 24, 2016 3:35 pm
Posts: 20
Hi there,

I have created a post-tensioned balanced cantilever bridge using CSM. I have a following questions:

1) which combination is the most appropriate for reactions. According to CSM manual for internal forces combinations 4xyz should be taken but, what about long term losses for prestressing? Combinations 4xyz don't take creep and shrinkage into consideration, only combinations 7xyz do it, but they are only for stresses.
2) I picked combinations 7xyz and using maxima I have transfered them to internal forces. The results were the same comparing them to 7xyz (internal forces), but transfering this new result into stresses (using AQB) gave me different values then stresses in 7xyz. I believe they should be the same. I also couldn't get reactions from this new result.

I would be grateful if someone could help me.

Best regards


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