四川轻化工大学学报（自然科学版）2024，Vol.37Issue(1)：93-100,8.DOI:10.11863/j.suse.2024.01.12
既有建筑与加装电梯的可滑移节点抗震研究
Study on the Seismic Performance of Slippable Joints of Existing Buildings and Elevators
摘要
Abstract
The new slippable node can significantly improve the damping effect,and effectively improve the seismic performance of existing buildings with elevators.The new slippable node model proposed in this paper is to connect the elevator entry platform with the existing building by using high-strength bolts,circular orifice plates and rubber pads.The purpose is to dissipate energy through the friction between bolts and circular orifice plates and the cushion plate and rubber pad,resist seismic action and reduce structural deformation.In order to study the stress of this joint,the displacement loading test of 4 specimens is carried out in the paper.The main parameters of the test are whether there is a rubber pad in the base and the hole shape of the bolt.The experimental results show that the maximum energy dissipation of the traditional node is 0.62,and the maximum energy dissipation of the slippable node is 1.45.The shape of the bolt hole has a significant impact on the performance of the specimen.The addition of rubber pad increases the energy dissipation of the specimen,and the seismic resistance of the slippable node specimen is improved compared with the traditional node,giving full play to the energy dissipation capacity of the structure.The parametric analysis shows that the rubber pad and the shape of the hole obviously affect the deformation ability of the specimen.The hysteretic curve of the new slippable joints is relatively full,showing a certain"pinch"phenomenon.The whole structure has good seismic performance and energy dissipation capacity.The test results are in good agreement with the finite element analysis results.关键词
加装电梯/可滑移节点/抗震性能/有限元分析Key words
installing elevators/slippable node/seismic performance/finite element analysis分类
建筑与水利引用本文复制引用
陈东,甄雪虎,李今保,张保谦..既有建筑与加装电梯的可滑移节点抗震研究[J].四川轻化工大学学报（自然科学版）,2024,37(1):93-100,8.基金项目
安徽省教育厅高校自然科学研究项目(KJ2021A0608) （KJ2021A0608）
安徽省住房城乡建设科学技术计划项目(2020-YF47) （2020-YF47）
