Effect of infill masonry wall with central opening on seismic behaviour of reinforced concrete structure
by Sayed Qudratullah Sharafi; Taiki Saito
International Journal of Masonry Research and Innovation (IJMRI), Vol. 8, No. 6, 2023

Abstract: Un-reinforced masonry walls are commonly used as partition walls inside the reinforced concrete (RC) buildings in most of the countries. Although, the infill masonry walls are not accounted in structural design process (non-structural elements) but they can significantly change the seismic performance of structures such as strength, stiffness, story drift and energy dissipation. Several analytical and experimental research have been performed to find out the influence of infill masonry walls with opening inside the RC structure, by changing the opening location, opening size, aspect ratio of opening, infill wall connection with frame, material properties and so on. The current research aims to propose a new method (net area of masonry wall and average struts angle) to estimate the capacity of infill masonry wall with central opening and study the effect on the seismic performance of the RC structure. The shear strength of the infill masonry obtained by the proposed method was compared with experimental results as well as with the analysis methods to confirm its accuracy. The nonlinear frame analysis program, STERA 3D, developed by one of the authors was used for the analysis.

Online publication date: Fri, 13-Oct-2023

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