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How can I model post-pretensioned beams?

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Posts: 4
Topic starter
(@tuvw229)
New Member
Joined: 16 years ago

As we know, we can add prestress stress to some elements in ABAQUS by *NITIAL CONDITIONS, TYPE=STRESS. If we want to hold the stress in elements, it says that we can use *PRESTRESS HOLD. But I tried many times but failed.

1. I embedded truss element into solid element, I can add prestressing stress like pre-tensioning method but can not hold the stress like post-tensioning method.

2. Then I tried *NITIAL CONDITIONS, TYPE=STRESS, REBAR by surface element with rebar layer. I could add the stress to the rebar layer and even I could get the stress in rebar layer. But the girder did not deform like post-tensioned beam. Whats the problem? Does someone give me some idears? Thanks first!

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Posts: 3998
(@jorgen)
Member
Joined: 5 years ago

Hmm, I have not tried to do what you are describing.
I am not sure why it did not work. Someone else with more info??

- Jorgen

2 Replies
Posts: 4
Topic starter
(@tuvw229)
New Member
Joined: 16 years ago

Thank you. Doctor Jorgen.

I have solved this problem by using Rebar layer.

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