新型装配式剪力墙单向往复/单调加载试验  

Unidirectional reciprocating/monotonic loading test of new assembled shear wall

作　　者：樊禹江[1,2] 余滨杉 许锦宝 陈玉喜 熊二刚[2] 孙克清 FAN Yujiang;YU Binshan;XU Jinbao;CHEN Yuxi;XIONG Ergang;SUN Keqing(School of Architecture,Chang'an University,Xi'an 710061,Shaanxi,China;School of Civil Engineering,Chang'an University,Xi'an 710061,Shaanxi,China;School of Mechanics,Civil Engineering and Architecture,Northwestern Polytechnical University,Xi'an 710072,Shaanxi,China)

机构地区：[1]长安大学建筑学院,陕西西安710061 [2]长安大学建筑工程学院,陕西西安710061 [3]西北工业大学力学与土木建筑学院,陕西西安710072

出　　处：《山东大学学报（工学版）》2024年第2期136-142,152,共8页Journal of Shandong University（Engineering Science）

基　　金：国家自然科学基金青年资助项目(51808046);陕西省重点研发计划资助项目(2023-YBSF-315、2021SF-521);陕西省自然科学基金资助项目(2023-JC-YB-470)。

摘　　要：为明确装配式剪力墙结构水平连接的传力机理,获得更优异的耗能能力,提出一种新型装配式剪力墙结构。针对此结构,设计制作4片缩尺比例为1∶1.54的不同螺栓配置数量、轴压比和边缘构件纵筋配筋率的新型装配式剪力墙结构模型,完成单向往复/单调加载试验。4片试件破坏模式相似,墙体保持弹性状态,且未发现明显裂缝;之后墙体混凝土发生破坏,裂缝多开展于1/3墙高下侧,最终破坏时沿墙身对角线向墙角贯通。轴压比/边缘构件纵筋配筋率减小导致试件各特征荷载降低。试验结果表明,增加螺栓配置数量虽然对试件的特征荷载影响不大,但能有效限制墙体侧移,提高试件的整体性和水平连接装置的传力性能;新型装配式剪力墙具有更强的变形能力,极限承载力与现浇墙体基本一致。In order to obtain a clearer force transmission mechanism of the horizontal connection of the assembled shear wall structure and have better energy dissipation capacity,the research group proposed a new type of assembled shear wall structure.For this structure,four new assembled shear wall structural models with different number of bolt configurations,axial compression ratio and longitudinal reinforcement ratio of edge members in a scale of 1:1.54 were designed and fabricated.The unidirectional reciprocal/monotonic loading tests were completed.The failure modes of the four specimens were similar.The walls remained elastic and no obvious cracks were found.After that,the concrete of the wall was damaged,and the cracks were mostly carried out at the lower side of 1/3 of the wall height.The final damage was penetrated along the diagonal of the wall toward the corner.The decrease of axial compression ratio/longitudinal reinforcement ratio of edge member would lead to the decrease of each characteristic load of specimen.The test results showed that the increase of the number of bolt configurations could effectively limit the lateral displacement of the wall and improve the integrity of the specimen and the force transfer performance of the horizontal connection device,although it had little effect on the characteristic load of the specimen.The new assembled shear wall had stronger deformation capacity and the ultimate bearing capacity was basically the same as the cast-in-place wall.

关 键 词：新型装配式剪力墙 耗能 水平连接装置 单向往复加载 单调加载 

分 类 号：TU45[建筑科学—岩土工程]