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RISA 3d beginner - Civil Engineering Student

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motrcolt

Civil/Environmental
Joined
Jun 9, 2015
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1
Location
US
I'm beginning to work with RISA 3d and I'm having a problem when going to solve my problems, I'm getting all 0 values for my deflections and reactions and I can't find out why.


The grid is 8@5 in both direcions

This is what I have for Load Combinations, can anyone help me with why I'm no getting any values

 
It looks like every one of your nodes has a support so therefore there will be no deflection at any joint.
You need to edit your boundary conditions to only provide support where there actually will be support.

Check out Eng-Tips Forum's Policies here:
faq731-376
 
JAE is correct, not sure why you have supports everywhere. Your screenshot of the load combinations also shows no load factor input. Maybe you added that later, but not having a factor of 1 there would result in 0 reactions.

You should go through RISA's tutorials step-by-step. They have great examples and documentation.

You might also try asking some of your fellow students. This site is really intended for practicing professionals.
 
I also agree with JAE here.

Mike McCann, PE, SE (WA)


 
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