湖南大学学报(自然科学版)2017,Vol.44Issue(3):55-60,6.DOI:10.16339/j.cnki.hdxbzkb.2017.03.007
不同连接构造的装配式混凝土剪力墙抗震性能试验研究
Experimental Investigation on Seismic Performance of Precast Concrete Shear Walls with Different Connections
摘要
Abstract
Two different types of horizontal connections for precast concrete shear walls are proposed and tested to evaluate their seismic performance.One is dry connection with vertical reinforcing bars anchored into the grout-filled metal bellows embedded in the precast wall,while the other is hybrid connection where the boundary elements are formed by locally placing concrete with vertical reinforcing bars lapping in the cast-in-place concrete,and the reinforcing bars placement is the same that of the dry connection.Three full-scale specimens of the dry connection,hybrid connection,and cast-in-place connection were prefabricated and tested under the low-cycle reverse loading.The measured results showed that both the precast specimens performed similarly,such as the strength,stiffness,displacement ductility,and energy dissipation capacity,and they possessed comparable seismic performance when compared with the cast-in-place specimen.Meanwhile,the seismic behavior of the hybrid connection was obviously dependent on the pouring quality of the locally placing concrete.Because of the complexity in the construction technology for the concrete placing of hybrid connection,it is difficult to ensure the quality,and the seismic performance is considerably weakened.Therefore,it is not recommended to apply the hybrid connection in precast concrete shear walls.关键词
预制混凝土/剪力墙/抗震性能/干式连接/混合连接Key words
precast concrete/shear walls/seismic performance/dry connection/hybrid connection分类
建筑与水利引用本文复制引用
朱张峰,郭正兴,朱寅,李亚坤..不同连接构造的装配式混凝土剪力墙抗震性能试验研究[J].湖南大学学报(自然科学版),2017,44(3):55-60,6.基金项目
"十二五"国家科技支撑计划项目(2011BAJ10B03),12th Five-year National Science and Technology Support Program(2011BAJ10B03) (2011BAJ10B03)