Effects of Brick Masonry Infill on Seismic Performance of R/C Building

Abstract

This paper presents the brick infill effects on seismic performance of R/C building. Brick masonry infill in R/C frame structure was evaluated by applying an equivalent diagonal strut model that representing elements of a brick infill. In this model, distributed compression transferred diagonally between infill/frame interfaces where the frame-infill contact length can be evaluated by static equilibriums related to compression balance and lateral displacement compatibility. The seismic performances of existing R/C building were evaluated considering infill effects by applying the diagonal strut model. Two calculations of seismic performance of R/C building: without and with considering brick infill, were conducted. Consequently, the brick masonry infill significantly increases the lateral strength and lateral stiffness of the R/C building.

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