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Layane Hamzeh, Ahmed Ashour and Khaled Galal

Layane Hamzeh, PhD Student, Concordia University, Building, Civil and Environmental Eng., 1515 Ste-Catherine Street West, Montréal, QC, Canada,l_hamze@encs.concordia.ca
Ahmed Ashour, Assistant Professor Faculty of Engineering, Cairo University, Cairo, Egypt. Former Postdoctoral Fellow, Concordia University, Building, Civil and Environmental Eng., 1515 Ste-Catherine Street West, Montréal, QC, Canada, eng.ahmed3ashour@gmail.com
Khaled Galal, Professor, Concordia University, Building, Civil and Environmental Eng. 1515 Ste-Catherine Street West, Montréal, QC, Canada, galal@bcee.concordia.ca

ABSTRACT
Reinforced masonry shear walls with boundary elements (RMSW-BE) showed enhanced lateral performance and displacement ductility compared to rectangular walls. However, few studies focused on the seismic performance of RMSW-BE. Predicting inelastic responses of RMSW-BE require accurate and effective numerical modelling tools that incorporate important material characteristics and behavioural response features. Therefore, there is a need for developing simplified numerical tools for reliable evaluation of the seismic response of RMSW-BE in order to facilitate the adoption of RMSW-BE in different design and assessment frameworks. In this paper, a numerical study is presented using a macro-modelling approach that is embedded in the software SeismoStruct to simulate the in-plane response of flexural dominated RMSW-BE. Model validation is conducted by comparing the lateral force-displacement responses computed from the model predictions against the experimental data of four RMSW-BE tested under quasistatic cyclic loading from the literature. A parametric study is performed to evaluate the influence of various levels of axial compressive stress, and vertical reinforcement ratio in BE on the load-displacement response of the RMSW-BE under quasi-static cyclic loading. All walls had a high level of displacement ductility under different levels of axial stress and vertical reinforcement ratio.

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