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通过两片T形截面墙片在恒定竖向荷载下的低周反复荷载试验,研究了墙片发生剪切破坏时的破坏过程、破坏形态、受力性能、变形能力和耗能能力。试验结果表明,发生剪切破坏时,配筋砌块短肢砌体剪力墙与钢筋混凝土短肢剪力墙具有相似的破坏形态。根据国内59片符合配筋砌块短肢砌体剪力墙基本要求的配筋砌块砌体剪力墙抗剪承载力试验数据,考虑了灌孔砌体强度、剪跨比、竖向压力、水平钢筋等因素的影响,给出了与试验数据吻合较好的配筋砌块短肢砌体剪力墙抗剪承载力计算公式。
Through the low-cycle repeated loading test of two T-shaped cross-section walls under constant vertical load, the failure process, failure mode, mechanical property, deformation capacity and energy dissipation capacity of the wall were studied. The experimental results show that the reinforced concrete short-leg shear walls have similar failure modes when the shear failure occurs. According to the test data of shear strength of 59 reinforced masonry shear walls with the requirements of the basic requirements of reinforced short block masonry shear walls of masonry blocks in China, considering the strength of grouting holes, shear span ratio, vertical pressure , Horizontal reinforcement and other factors, gives the calculation formula of shear strength of reinforced masonry short pier masonry shear wall in good agreement with the experimental data.