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Title: Shear and Flexure-Shear Strengths of Autoclaved Aerated Concrete Confined Masonry Walls

Author(s): Jorge Varela-Rivera, Luis Fernandez-Baqueiro, and Joel Moreno-Herrera

Publication: Structural Journal

Volume: 120

Issue: 3

Appears on pages(s): 207-215

Keywords: autoclaved aerated concrete (AAC); confined masonry walls; flexure-shear strength; in-plane reversed cyclic loads; shear strength

DOI: 10.14359/51738511

Date: 5/1/2023

Abstract:
An experimental study on the shear behavior of autoclaved aerated concrete (AAC) confined masonry walls is presented. A total of eight full-scale confined walls were tested in the laboratory under in-plane reverse cyclic loads. The variables studied were the aspect ratio and the axial compressive stress of walls. The shear behavior was characterized by diagonal cracks or flexure-shear and diagonal cracks. The final cracking pattern of the walls was defined by the traditional “X��� pattern. Equations for shear strength and flexure-shear strength based on experimental data obtained in this and previous studies are proposed for AAC confined walls. A limit is established for the shear strength of walls as a function of axial compressive stress. The proposed equations predicted well the experimental strength of the AAC confined walls considered in this study.