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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。
In order to study the seismic performance of semi-fabricated RC shear wall structures composed of prefabricated wall panels and core cast-in-place parts, two vertical and horizontal shear walls and in-situ T-shaped edge members Full-scale I-shaped cross-section shear wall specimens were low-cycle repeated loading test. The experimental results show that the plastic deformation of the semi-assembled RC shear wall structure under horizontal earthquake mainly concentrates near the horizontal connection between the shear wall and the foundation, while the damage of the wall itself is slight. The specimen has sufficient strength And stable hysteretic characteristics. When the width of the horizontal connection gap is large, part of the tensile strength of the tensioned steel bars will be reduced due to the excessive deformation, which leads to the decrease of the ductility of the members, but it still has sufficient deformation capacity to meet the requirements of China’s standard rare earthquakes Under the deformation requirements; cast-in-place T-shaped edge members can work effectively with the laminated wall panels.