Floor Diaphgram and Moment Release

Question

0245.struc.STD 
 1) After applying floor diaphgram i am getting following warning 
 *WARNING- ZERO STIFFNESS IN DIRECTION 2 AT JOINT 32 EQN.NO. 188 
 ***WARNING - INSTABILITY AT JOINT 980 DIRECTION = MY 
 2) Have i applied the moment release correctly . I do not want any torsion in main beam due to secondary beams 
 3) I am getting this error 
 WARNING:Reinforcement % exceeds maximum limit 
 even after increasing size the size of column to 300 X 700 mm. and if I correct 1 column by increasing its size then other designed column fails 
 4) Is my wind application is correct

Sye · Answer

I took a very quick look at the model and noted some improper releases at nodes like say 31, 32, 33 &hellip;. You have applied MZ releases to ALL members connecting at these nodes. You should only release the MZ for the supported members whereas the main supporting members (like 46 to 53 for example)should not have these releases as these beams should behave as a continuous member. Check other locations where you may have the same issue. Please get these fixed before getting into the design phase. I did not see an issue with the wind load generation as such.

Floor Diaphgram and Moment Release

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