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RE: lateral load[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: seaint(--nospam--at)seaint.org
- Subject: RE: lateral load
- From: Mike Brown <mike.brown(--nospam--at)cshqa.com>
- Date: Thu, 19 Nov 1998 09:28:56 -0700
I believe this would depend on the connection between the concrete wall and mezzanine. If the mezzanine is tied to the wall, the mezzanine will either deflect with the wall (going along for the ride) or if stiff enough, resist the load from the wall. If there is no connection between the mezz and wall, then care should be taken to avoid pounding between the two elements. My assumption is that the mezzanine is tied to the wall. I would just compare the stiffness of the wall to the mezzanine. If the wall is much stiffer than the mezzanine, you could argue that the mezzanine is going along for the ride. An accurate analysis would be to distribute the force from the wall to the mezzanine according to the relative stiffness and vise versa. Please note that the analysis mentioned above is dealing with only the wall element (not the entire structure). I do not believe the mezzanine will effect the overall base shear of the entire structure. As for base shears, the analysis should be carried out as two separate structures. I do not have all the information and the assumptions that I am making are based off of similar projects that we have done in our office and the procedures that we have used. -----Original Message----- From: Dave Anderson [mailto:dnae(--nospam--at)home.com] Sent: Thursday, November 19, 1998 8:30 AM To: seaoc Subject: lateral load Hi everyone If a mezzanine is constructed inside tilt up concrete building and the walls are supported at roof and foundation do i have to consider seismic load on mezzanine diaphragm or the load will go direct to strong connection at roof and foundation it is another plan check correction! thanks D.A.
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