新型叠合式剪力墙试验研究及抗震性能分析

在德国技术生产的钢筋混凝土叠合墙板的基础上,提出一种结构性能优良、施工快速便利、造价合理,同时又能满足环保要求的新型剪力墙结构形式。通过低周反复加载试验,得到墙板的荷载-位移滞回曲线、荷载-应变关系曲线,研究现浇剪力墙板和叠合式剪力墙板的承载能力（开裂荷载、屈服荷载、极限荷载）、变形性能和耗能能力。试验结果分析表明：拼缝处的暗柱和水平筋起到传递剪力的作用;格构钢筋是叠合式剪力墙板的整体性形成的主要原因;与现浇剪力墙板相比,延性变差、耗能减弱,但承载能力增加。为新型叠合剪力墙结构的推广应用及其抗震设计提供有意义的理论依据。

Experimental Research on New-type Superposed Shear Wall and Its Seismic Performance Analysis

On the basis of reinforced concrete superimposed shear wall made by German technology,a new-type shear wall structure was put forward,which has good behave of structure,convenient construction,reasonable cost of building,and meets requirements of environmental protection.Load-displacement hysteretic curve and load-strain curve of shear wall were obtained by quasi-static tests.Carrying capacity（crack load,yield load and ultimate load）,formability and energy dissipation capacity of cast-in-situ shear wall and superimposed shear wall were studied.Experiment results indicated that embedded column in vertical gap joint and horizontal reinforce have function of shearing force transfer;reinforcing mesh is the reason of integrity formation of superimposed shear wall;comparing with cast-in-situ shear wall,superposed shear wall has worse ductility,smaller energy dissipation capacity,and bigger bearing capacity.The results provide meaningful theoretic basis for popularization and aseismic design of the newtype superposed shear wall.