黏土砖再生粗骨料混凝土短肢抗震墙的试验研究

为了研究黏土砖再生粗骨料混凝土短肢抗震墙的受力和变形性能,设计了2个黏土砖再生粗骨料混凝土短肢墙试件和1个普通钢筋混凝土短肢墙对比试件,试件的尺寸、配筋和轴压比等参数均相同。采用低周反复的加载方式,测试了各试件的受力与变形性能,并对试件的承载力、刚度、延性、耗能能力和破坏形态进行了对比分析。研究结果表明:在相同的配筋和轴压比下,黏土砖再生粗骨料混凝土短肢抗震墙试件比普通混凝土短肢抗震墙试件的承载力有所降低,延性和耗能能力也有所降低,但降低幅度较小;黏土砖再生粗骨料混凝土短肢抗震墙的承载力和变形性能均能满足结构的抗震要求。

Experimental Study of Short-leg Shear Wall of Concrete with Recycled Brick Aggregate

In order to investigate the structural performance of the recycled brick coarse aggregate concrete shear wall,two short-leg shear wall specimen of concrete with recycled clay brick aggregate and a common reinforced concrete short-leg shear wall contrast specimen were designed,and the parameters (size,reinforcement and axial compression ratio) of the specimen are the same.The stress and deformation behavior of the specimen were tested under low cyclic reversed loading.Furthermore,the bearing capacity,stiffness,ductility,energy dissipation capacity and failure pattern of the specimen were also compared and analyzed.Results show that the bearing capacity of recycled brick aggregate concrete short-leg shear wall specimen was lower than that of the common reinforced concrete short-leg shear wall specimen under the same reinforcement ratio and axial compression ratio.In addition,the ductility and energy dissipation capacity were also reduced.Therefore,short-leg shear wall of recycled concrete with brick aggregate can be used in seismic structures.