绿色再生轻骨料混凝土短肢剪力墙抗震性能的研究

分析绿色再生轻骨料混凝土不同取代率"L"形截面短肢剪力墙力学性能,研究普通混凝土和最优配合比剪力墙试件抗震性能。试验结果表明:最优配合比试件比废砖掺量为0和100%的试件墙体达到屈服的时间较晚;竖向钢筋配置较多的会使钢筋较晚的进入屈服状态,能承受水平往复荷载的能力更强;较高的竖向钢筋配筋率能提高试件的耗能能力。最优配合比能提高试件耗能能力、承载能力、延性系数、结构耗能能力。研究的成果可为绿色再生轻骨料混凝土短肢剪力墙构件的设计和实际工程应用提供参考,同时为该类构件的深入研究打下基础。

Study on Seismic Behavior of Green Recycled Light Aggregate Concrete Short-leg Shear Wall

The mechanical properties of green recycled lightweight aggregate concrete short-leg shear wall with different substitution ratios of L-shaped section are analyzed.The seismic performance of ordinary concrete and optimal mix ratio shear wall specimens is studied.The test results show that the optimum mix ratio specimen has a later yield time than that of the wall with 0 and 100%waste bricks;the more vertical reinforcement is deployed,the later the reinforcement enters the yield state,the stronger the ability to withstand horizontal reciprocating load;and the higher vertical reinforcement ratio can improve the energy dissipation capacity of the specimen.The optimum mix ratio can improve the energy dissipation capacity,load-bearing capacity,ductility coefficient and structure energy dissipation capacity of the specimens.The research results can provide reference for the design and practical engineering application of green recycled lightweight aggregate concrete short-leg shear wall components,and lay a foundation for further research of such components.