摘要
为进一步促进绿色装配式复合结构的发展,特此提出在剪力墙底部用干式连接方法,通过L型钢连接件将高强螺栓分别与底梁、剪力墙上下层结构连接起来。通过ABAQUS模拟软件,对整体现浇式剪力墙与带有水平缝螺栓连接的绿色装配式复合剪力墙分别进行拟静力试验研究。通过施加低周往复的荷载进行有限元模拟得到的钢筋应力分布云图、墙体应力分布云图、滞回曲线分析等,对比模拟数据得发现两个剪力墙刚度基本一致,可以满足初始的的设计目标,并且滞回曲线较为饱满,剪力墙的整体力学性能有了一定的提升,对比两组试件的墙体应力分布图与钢筋应力分布图,带水平缝螺栓连接的剪力墙受力性能更为良好,刚度退化较为平缓。此干式连接方式施工简单,能够积极响应保护环境减碳节能的要求,为进一步实现碳中和做出贡献。
In order to further promote the development of green prefabricated composite structures,a dry connection method is proposed at the bottom of the shear wall,and high-strength bolts are connected to the bottom beam and the lower structure of the shear wall through L-shaped steel connectors.Through the ABAQUS simulation software,the pseudo-static test research was carried out on the integral cast-in-place shear wall and the green prefabricated composite shear wall with horizontal joint bolt connection.By applying a low-cycle reciprocating load and performing finite element simulation,the reinforcement stress distribution cloud map,wall stress distribution cloud map,and hysteresis curve analysis,etc.are obtained.Comparing the simulation data,it is found that the stiffness of the two shear walls is basically the same,which can meet the initial design.The hysteresis curve is relatively full,and the overall mechanical properties of the shear wall have been improved to a certain extent.Comparing the wall stress distribution diagram and the reinforcement stress distribution diagram of the two groups of specimens,the shear wall with horizontal joint bolt connection is stressed.Better performance and less stiffness degradation.This dry connection method is simple to construct,can actively respond to the requirements of environmental protection,carbon reduction and energy saving,and contributes to the further realization of carbon neutrality.
作者
李妍
成骞
LI Yan;CHENG Qian(School of Civil Engineering,Jilin Jianzhu University,Changchun 130118,China;Jilin Province Engineering Research Center for Cold Region Green Building Technology,Changchun 130118,China)
出处
《建筑结构》
CSCD
北大核心
2022年第S01期1784-1787,共4页
Building Structure
基金
国家重点研发计划项目(2017YFC080610)
吉林省科技厅国际科技合作项目(20210402073GH)
关键词
干式连接
水平接缝
抗震性能
装配式剪力墙
dry connection
horizontal seams
seismic performance
prefabricated shear wall
