高轴压比纵肋叠合混凝土剪力墙抗震性能试验研究  

Experimental study on seismic behavior of composite shear wall with rib under high axial ratios

作　　者：王俊 田春雨 杨思忠 朱凤起 刘洋 李洋 黎威昱 Wang Jun;Tian Chunyu;Yang Sizhong;Zhu Fengqi;Liu Yang;Li Yang;Li Weiyu(China Academy of Building Research,Beijing 100013,China;Beijing Building Industrialization Group Corp.Ltd,Beijing 100161,China;Chengde Green Building Energy Saving Technology Co.Ltd,Chengde 067000,China)

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

出　　处：《建筑科学》2023年第3期27-36,共10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：纵肋叠合剪力墙结构是一种新型的装配整体式混凝土叠合剪力墙结构,预制墙板构件底部设有空腔,顶部伸出封闭环状钢筋,上下层墙板纵筋在底部空腔搭接传力。墙板构件的边缘构件通常采用预制,现场安装完成后形成叠合边缘构件,同时,为方便墙板构件调平及增加墙体整体性,墙板构件底部与楼板之间设有5cm后浇层。为研究带叠合边缘构件及底部后浇层的纵肋叠合剪力墙的抗震性能,对高轴压比的足尺剪力墙试件进行低周往复荷载试验,对比参数包括剪跨比、构造形式、轴压比。试验结果表明,轴压比不超过0.6时,纵肋叠合剪力墙无论采用全预制方式还是预制现浇结合的方式,其受力性能均与现浇剪力墙大致相同,边缘构件采用叠合构造是可行的,底部后浇层对墙体受力性能无影响,可按与现浇结构相同的方法进行此类纵肋叠合剪力墙结构及构件的设计。The structure of composite shear wall with rib is a new type structure of assembled monolithic concrete composite shear wall,the pre-cast members contain bottom cavities and ring steel rebars extending out of the top.The force transmissions of the longitudinal rebars of upper and lower components are achieved by lapping.The edge components of members are usually composite,at the same time,a 5cm post pouring layer is set between the bottom of wallboard and the floor for convenient leveling and high integrity.To study the seismic performance of the composite shear wall with rib with composite edge component and post pouring layer,the full-scale shear wall specimens with high axial compression ratio are tested under low cyclic loading including comparison parameters of different shear span ratio,different forms and different axial compression ratio.The test results show that,when the axial compression ratio is no more than 0.6,the mechanical performance of the composite shear wall with rib is almost as the same as that of the cast-in-place shear wall,whether the wallboard is produced by fully prefabrication or combination of precast and cast-in-place.It is feasible to adopt that the composite edge members and the post pouring layer has no effect on the mechanical performance of the wall,so the design of the structure of composite shear wall with rib can be carried out in the same way as that of the cast-in-place structure.

关 键 词：纵肋叠合剪力墙 拟静力试验 高轴压比 跨高比 抗震性能 

分 类 号：TU375.2[建筑科学—结构工程]