Analysis of Seismic Response of Fully Grouted Reinforced Concrete Masonry Shear Walls

Abstract eng:
This paper presents detailed analyses of an experimental study conducted to evaluate the possibility of achieving high levels of ductility and energy dissipation in reinforced concrete masonry shear walls failing in flexure. The test program consisted of testing six reinforced concrete masonry shear walls to failure under reversed cyclic lateral loading. The current study focuses on documenting the levels of ductility attained by the walls, evaluating the contribution of flexure and shear deformations to the overall wall lateral displacement, and estimating the amount of energy dissipated by hysteretic damping. The measured and predicted wall capacities are discussed with respect to the MSJC code (2005) and the CSA S304.1 (2004). Analysis of the measured displacements showed that the shear displacement contribution of the test walls (all with height-to-length ratio of 2.0) to the overall wall displacement was significant but was not the same for all the walls. It was also shown that reinforced masonry shear walls can exhibit high levels of energy dissipation.

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