I was testing a beam column joint under various loading conditions (Static time history, pushover Analysis etc.) which has a bilinear kinematic link element at the beam-column joint. After every analysis I was getting beam deflection and moment values at the very first time step. At that time I thought it is due to the self weight. Later I noticed that even if I run a static analysis without self weight or any other load I still get those same deflection and moment values. I think this is a bug and should be debugged as soon as possible because without load the structure should not get any deflection or bending moments. Please check the following files (Model+screen shots) for details.
http://www.4shared.com/file/GZ2spgkn/20 ... matic.html
http://www.4shared.com/photo/ZXwfpUgn/B ... ments.html
http://www.4shared.com/photo/ry566g0x/B ... _Link.html
http://www.4shared.com/photo/VcJUubr-/E ... ivity.html
http://www.4shared.com/photo/je-lfuOQ/Nodes.html
http://www.4shared.com/photo/CgT-1dLM/S ... eight.html
http://www.4shared.com/photo/irI5iXt7/Section.html
http://www.4shared.com/photo/VUPBatCz/V ... ement.html
Best Regards,
A. B. M. Rafiqul Haque
Graduate Research Assistant
The University of British Columbia
School of Engineering
EME 3205, 1137 Alumni ave
Kelowna, BC, Canada V1V 1V7
Mobile: +1 (250) 859 6873
Possible analysis bug using link elements
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Stelios_Antoniou
- Posts: 89
- Joined: 17 Jul 2011, 20:08
Re: Possible analysis bug using link elements
Your ElasticBox elfrm class has a self-weight different than zero, equal to 0.06042813. If you set it to zero you will get no deformations