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[SEAOC] Re: [SEAOC] Rigid frame with masonry walls

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My only similar experience is with the retrofit of unreinforced masonry
buildings that require the addition of a rigid frame where the pier action
is not sufficient enough to resist the lateral load.
The code requires (UBC) that when a steel moment frame is used to resist
lateral in the plane of  a masonry wall that the steel frame deflection be
limited to 0.0025h or twice the stiffness of an all steel structure. This
should reduce the frame deflection to be within the limits of the masonry
I hope it's of some help.
Dennis Wish PE