Interaction Effects per ASCE 7-16 §12.7.2
Interaction effect is defined by users.
If the moment frames are adjacent to more rigid elements that are not part of the seismic force-resisting system, these elements should be designed so that any failure of these frames should not affect the vertical load and seismic force-resisting capability of the frame. Also, the seismic design should satisfy these rigid elements on the structural system at structural deformations corresponding to the design story drift.
The interaction requirements are intended to prevent unexpected failures in members of moment resisting frames. When masonry infill is fitted without any separation with reinforced concrete columns, hinges are occurred at the top of the column and at the top of the masonry as ıt has seen figure.
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