装配整体式钢筋混凝土剪力墙子结构抗震性能试验研究

发布时间：2018-03-05 16:39

本文选题：装配整体式剪力墙结构　切入点：干式连接　出处：《建筑结构学报》2017年06期 　论文类型：期刊论文

【摘要】：对一栋3层足尺的新型装配整体式混凝土剪力墙子结构进行拟静力试验。该结构中包含4种连接构造,即同层同跨内预制墙的竖缝采用干式连接,同层相互垂直墙体间采用现浇转角墙连接,上、下预制墙间采用型钢抗剪键和后浇型钢边缘构件2种连接构造进行连接。试验结果表明:该类型装配整体式型钢剪力墙结构具有良好的抗震性能;连梁在整个抗侧力体系中起到第一道防线的作用,加载结束时,连梁发生明显剪切破坏,具有较强的耗能能力;干式连接在试验中陆续进入屈服,可作为结构的第二道耗能防线;试验后期,部分干式连接的焊缝出现断裂,无法继续限制墙肢对楼板的冲切作用。型钢边缘构件和后浇RC转角墙中的纵筋分别在层间位移角达到1/150和1/100时发生屈服;整体模型在层间位移角达到1/75后,未出现承载力失效或楼板构件脱落现象,可认为该结构体系的抗震性能等同于现浇剪力墙结构。
[Abstract]:The quasi-static test was carried out on a three-story full-scale new assembled integral concrete shear wall substructure. The structure consists of four kinds of connection structures, that is, the vertical joint of the same story and the inner precast wall is dry-jointed. The vertical wall of the same layer is connected with the cast-in-place corner wall. The bottom precast wall is connected by two kinds of connection structures: section steel shear key and post-cast steel edge member. The test results show that this type of integral steel shear wall structure has good seismic performance. The connecting beam acts as the first line of defense in the whole lateral force resistance system. At the end of loading, the coupling beam has obvious shear failure and has a strong energy dissipation capacity. It can be used as the second energy dissipation line of the structure. It is impossible to limit the punching effect of the wall limb on the floor. The longitudinal reinforcement in the steel edge member and RC corner wall yield when the interstory displacement angle reaches 1/150 and 1/100 respectively, and the integral model reaches 1/75 when the interstory displacement angle reaches 1/75. There is no failure of bearing capacity or shedding of floor members, so the seismic behavior of the structure is equal to that of cast-in-place shear wall structure.
【作者单位】：中国地震局工程力学研究所;北京市建筑设计研究院有限公司;
【基金】：国家国际科技合作专项(2014DFA70950) 中国地震局工程力学研究所基本科研业务专项(2016A06) 国家科技支撑计划项目(2015BAK17B02)
【分类号】：TU352.11;TU398.2

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