绿色再生轻骨料混凝土短肢剪力墙承载力的研究

Study on Bearing Capacity of Green Recycled Lightweight Aggregate Concrete Short-leg Shear Wall

研究绿色再生轻骨料混凝土短肢剪力墙,对比分析不同配合比短肢剪力墙的承载力、刚度、延性性能。设计了1个普通混凝土短肢剪力墙试件和5个再生轻骨料混凝土短肢剪力墙试件,研究分析普通混凝土和最优配合比剪力墙试件的承载力、刚度、延性性能。试验结果表明:轴压比小的试件极限承载力略微高于轴压比大的试件;较多竖向钢筋配筋率的试件的承载力较大,较晚地进入屈服状态,裂缝开展速度较晚,能承受水平往复荷载的能力更强;同时还对绿色再生轻骨料混凝土短肢剪力墙进行了基本假定,为该类构件的深入研究打下基础。

This paper studies the short-leg shear wall of green recycled lightweight aggregate concrete and compares and analyzes the bearing capacity,stiffness and ductility performance of the short-leg shear wall with different mix ratios.One short-leg shear wall specimen of ordinary concrete and five short-leg shear wall specimens of recycled lightweight aggregate concrete were designed,and the bearing capacity,stiffness and ductility properties of the specimens of ordinary concrete and optimal composite shear wall were studied and analyzed.The test results show that the ultimate bearing capacity of the specimens with small axial compression ratio is slightly higher than that of the joints with large axial compression ratio;the specimens with more vertical reinforcement ratio have higher bearing capacity,later enter the yield state,and later crack development speed,and are more capable of bearing horizontal reciprocating load.At the same time,the basic assumption of green recycled lightweight aggregate concrete short leg shear wall was assumed,which lays the foundation for the further study of this kind of component.