Shear Deformations of Slender Reinforced Concrete Walls under Seismic Loading

摘要

Experimental results gained from quasi-static cyclic tests on 34 slender structural reinforced concrete walls available in the literature are used to examine the shear deformations for displacement demands in the inelastic range. Based on these results, the distribution of shear strains within the walls and the variation of shear deformations with top displacements is discussed. It is shown that for shear walls whose shear-transfer mechanism is not significantly deteriorating, the ratio of shear-to-flexural deformations remains approximately constant over the entire range of imposed displacement ductilities, whereas for walls whose shear-transfer mechanism is significantly degrading, the ratio of shear-to-flexural deformations increases. For the former, a simple model is proposed that allows the estimation of the ratio of shear-to-flexural deformations.