We have tried adaptive pushover analyses of RC building in Seismostruct.
We are unable to get the post yielding part of the pushover curve.
Analysis stop due to numerical error just after the peak. Can we get the pushover curve atleast upto 80% of the peak load.
Please give some insights on this.
Post yield behavior in pushover analysis
Re: Post yield behavior in pushover analysis
Same problem,
Please give your suggestions
Please give your suggestions
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seismosoft
- Posts: 1271
- Joined: 06 Jul 2007, 04:55
Re: Post yield behavior in pushover analysis
robind,
If you do not introduce vertical loads in your model (in addition to the self-weight of the frame members), it is indeed unlikely that you will see an accentuated post-yield softening response. You should thus render your model a bit more realistic, by adding the necessarily present vertical loads.
Since you are using DAP on a 2D frame, you may also wish to consider selecting only the X inertia direction (Settings -> Gravity and Mass), so as to eliminate spurious modes from your calculations.
The use of a displacement response spectrum for the scaling of the adaptive pushover displacement loads is also advisable, as the program notes, upon running the analysis.
Seismosoft Support
If you do not introduce vertical loads in your model (in addition to the self-weight of the frame members), it is indeed unlikely that you will see an accentuated post-yield softening response. You should thus render your model a bit more realistic, by adding the necessarily present vertical loads.
Since you are using DAP on a 2D frame, you may also wish to consider selecting only the X inertia direction (Settings -> Gravity and Mass), so as to eliminate spurious modes from your calculations.
The use of a displacement response spectrum for the scaling of the adaptive pushover displacement loads is also advisable, as the program notes, upon running the analysis.
Seismosoft Support