半装配式工字形横截面钢筋混凝土剪力墙抗震试验研究  

TEST ON THE SEISMIC BEHAVIOR OF I-SHAPED SECTION SEMI-PRECAST REINFORCED CONCRETE SHEAR WALLS

作　　者：种迅[1] 叶献国[1] 徐林[1] 李宁[1] 高鹏[1] 

机构地区：[1]合肥工业大学土木与水利工程学院,安徽合肥230009

出　　处：《工程力学》2013年第2期247-253,共7页Engineering Mechanics

基　　金：国家自然科学基金项目(50908071;51278519)

摘　　要：为研究由两侧预制墙板和核心现浇部分组成的半装配式钢筋混凝土剪力墙结构的抗震性能,对两个由纵向、横向剪力墙和相交处的现浇T形边缘构件组成的足尺工字型横截面剪力墙试件进行了低周反复加载试验。试验结果表明:半装配式钢筋混凝土剪力墙结构在水平地震作用下的塑性变形主要集中在剪力墙与基础间水平连接位置附近,而墙体本身的破坏较轻微;试件具有足够的强度和稳定的滞回特性;水平连接缝隙张开宽度较大时,部分受拉钢筋由于变形过大而拉断,导致构件延性有所降低,但仍具有足够的变形能力,满足我国规范罕遇地震下的变形要求;现浇T形边缘构件能够与叠合墙板有效地共同工作。To evaluate the seismic performance of semi-precast reinforced concrete （RC） shear wall which is composed of two precasted panels and cast-in-place core concrete, two full-scale I-shaped section specimens consisting of the perpendicular walls and the T-shaped edge elements were tested under cyclic reversed loads. The test results indicate that inelastic deformation of the semi-precast RC wall concentrated around the horizontal connections of the wall and foundation, while damage of the wall panel is relative minor. The specimens have enough strength and stable hysteresis behavior. Althrough excessive opening of the horizontal gap between the wall and foundation causes part of the longitudinal reinforcing bars broken, resulting in decreasing of the ductility, the specimens have enough deformation ability, and the maximum deformation requirement of Chinese seismic design code could be fulfilled. The cast in place T-shaped edge member could work well with the superimposed walls.

关 键 词：半装配 钢筋混凝土剪力墙 工字型横截面 边缘构件 抗震性能 低周反复加载试验 

分 类 号：TU375[建筑科学—结构工程] TU317.1