Hi,
I've designed a masonry wall (reinforced concrete frame with infill and links)with some load applied. When I delete the infill, the results change but when I put the specific weight to zero, I obtained the results of the deleted infill too (forces, displacements).
It seems that the frame is not stiffened by the infill panel.
What could be the problem ?
Can masonry wall be used with static analysis? If I can't, what could I use to simulate a masonry wall?
Thank you very much
Masonry wall, static analysis
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seismosoft
- Posts: 1316
- Joined: 06 Jul 2007, 04:55
Re: Masonry wall, static analysis
Hi,
Yes, the infill panel model can be used in static analysis.
We have not been able to reproduce the problem you describe (perhaps we have misunderstood it?), hence cannot be of any further assistance, we are afraid.
You might want to change the properties of the infill panel, even using quite exaggerated material/geometric values, to make sure that the infill is really playing a role in the response of your structure.
You should also ensure that your structural configuration is such that the presence of the infill will indeed be felt (e.g. if you have infill panels only in the upper floors, then the base shear capacity will not be changed).
Seismosoft Support
Yes, the infill panel model can be used in static analysis.
We have not been able to reproduce the problem you describe (perhaps we have misunderstood it?), hence cannot be of any further assistance, we are afraid.
You might want to change the properties of the infill panel, even using quite exaggerated material/geometric values, to make sure that the infill is really playing a role in the response of your structure.
You should also ensure that your structural configuration is such that the presence of the infill will indeed be felt (e.g. if you have infill panels only in the upper floors, then the base shear capacity will not be changed).
Seismosoft Support
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seismosoft
- Posts: 1316
- Joined: 06 Jul 2007, 04:55
Re: Masonry wall, static analysis
Dear Maxime,
We realise that this response comes with a very long delay and that you may have solved the matter by yourself.
In any case, and also for the benefit of others who may be interested in the issue, we note that the behaviour that you observed (no apparent influence of infill panels in the response of the infilled frame) was related to the fact that strength and stiffness of infill elements are introduced in the analysis only after the application of the initial loads, so that the former do not resist to gravity loads (which are normally absorbed by the surrounding frame, erected first).
In other words, if you wish the infills to resist gravity loads, then you should define the latter as non-initial loads.
Renewed apologies for the delay,
Seismosoft Support
We realise that this response comes with a very long delay and that you may have solved the matter by yourself.
In any case, and also for the benefit of others who may be interested in the issue, we note that the behaviour that you observed (no apparent influence of infill panels in the response of the infilled frame) was related to the fact that strength and stiffness of infill elements are introduced in the analysis only after the application of the initial loads, so that the former do not resist to gravity loads (which are normally absorbed by the surrounding frame, erected first).
In other words, if you wish the infills to resist gravity loads, then you should define the latter as non-initial loads.
Renewed apologies for the delay,
Seismosoft Support