纵肋叠合剪力墙竖向分布钢筋搭接性能试验研究  

Experimental study on performance of the lapped vertical distributed rebars of composite shear wall with rib

作　　者：王俊 田春雨 朱凤起 李洋 杨思忠 刘洋 Wang Jun;Tian Chunyu;Zhu Fengqi;Li Yang;Yang Sizhong;Liu Yang(China Academy of Building Research,Beijing 100013,China;Chengde Green Building Energy Saving Technology Co.Ltd,Chengde 067000,China;Beijing Building IndustrializationGroupCo.Ltd,Beijing100161,China)

机构地区：[1]中国建筑科学研究院有限公司,北京100013 [2]承德绿建建筑节能科技股份有限公司,河北承德067000 [3]北京市住宅产业化集团有限公司,北京100161

出　　处：《建筑科学》2022年第9期129-135,182,共8页Building Science

基　　金：住房和城乡建设部科学技术计划项目“装配整体式纵肋叠合剪力墙结构关键技术研究”(2019-K-095)。

摘　　要：为研究纵肋叠合剪力墙结构体系中竖向分布钢筋搭接传力性能,对10组20个试件进行搭接钢筋拉拔试验。通过试验现象,总结了搭接破坏模式,研究了钢筋端部锚固构造、后浇混凝土强度等对钢筋搭接传力性能的影响。结果表明:直锚搭接、弯锚搭接均可在竖向分布钢筋中应用;钢筋搭接通过新旧混凝土结合面受剪传力,应严格控制新旧混凝土结合面质量;提高混凝土强度有利于搭接传力。In order to study the performance of the lapped vertical distributed rebars of composite shear wall with rib, pull-out tests on 20 specimens are carried out. Based on the test results, the failure mode and stress transfer mechanism of lapped rebars are summarized. The results show that both the straight and curved anchorage lapped rebars can be applied in vertical distributed reinforcement;the structural performance of the lapped rebars depends on the shear capacity of the new-old concrete interface, so the quality of the new-old concrete interface shall be strictly controlled;increasing the concrete strength is beneficial to the structural performance of the lapped rebars.

关 键 词：纵肋叠合剪力墙 竖向分布钢筋 钢筋搭接 临界搭接长度 拉拔试验 

分 类 号：TU398.3[建筑科学—结构工程]