How to use rigidLink correctly?

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PHPBBCXW
Posts: 2
Joined: Thu Oct 07, 2021 10:22 pm

How to use rigidLink correctly?

Post by PHPBBCXW » Thu Oct 07, 2021 11:18 pm

Hello everyone,

How can I set the retained and constrained nodes of the rigid links so that the simplification shown in the following picture can be achieved?
Image

I did it like this:

rigidLink beam 1 2
rigidLink beam 1 3
rigidLink beam 4 5
rigidLink beam 6 7
rigidLink beam 5 8
rigidLink beam 7 8

the bears are simulated by zerolength elements, equaDOF command is used:

equaDOF 2 4 3 4 5 6
equaDOF 3 6 3 4 5 6

but the response of the structure turned out to be incorrect. Can anybody help me with this?

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