[1]陈庆军,潘忠尧,蔡健,等.冷挤压套筒连接装配式梁柱节点抗震性能试验研究[J].东南大学学报(自然科学版),2019,49(5):918-925.[doi:10.3969/j.issn.1001-0505.2019.05.015]
 Chen Qingjun,Pan Zhongyao,Cai Jian,et al.Experimental research on seismic behaviors of assembled beam-column joints with rebars spliced by pressed sleeves[J].Journal of Southeast University (Natural Science Edition),2019,49(5):918-925.[doi:10.3969/j.issn.1001-0505.2019.05.015]
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冷挤压套筒连接装配式梁柱节点抗震性能试验研究()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
49
期数:
2019年第5期
页码:
918-925
栏目:
土木工程
出版日期:
2019-09-20

文章信息/Info

Title:
Experimental research on seismic behaviors of assembled beam-column joints with rebars spliced by pressed sleeves
作者:
陈庆军12潘忠尧1蔡健12梁竣杰1朱东烽3陈祺荣3
1华南理工大学土木与交通学院, 广州 510641; 2华南理工大学亚热带建筑科学国家重点试验室, 广州 510641; 3广东精宏建设有限公司, 云浮 527400
Author(s):
Chen Qingjun12 Pan Zhongyao1 Cai Jian12 Liang Junjie1 Zhu Dongfeng3 Chen Qirong3
1School of Civil and Transportation Engineering, South China University of Technology, Guangzhou 510641, China
2State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou 510641, China
关键词:
冷挤压套筒连接 装配式梁柱节点 破坏形态 抗震性能
Keywords:
rebars spliced by pressed sleeve assembled beam-column joint failure mode seismic behavior
分类号:
TU375
DOI:
10.3969/j.issn.1001-0505.2019.05.015
摘要:
为研究冷挤压套筒连接装配式梁柱节点的抗震性能,完成了7个装配式梁柱节点和1个现浇节点试件的拟静力试验,研究了试件的破坏形态、滞回特性、延性性能和耗能能力.结果表明,在相似的参数条件下,装配式梁柱节点具有与现浇节点相当的耗能能力和综合抗震性能.设计成梁端弯曲破坏、柱压弯破坏和节点核心区剪切破坏的节点均实现了预期的破坏形态.装配式试件等效极限层间位移角均大于1/33;设计成梁端破坏的试件延性系数均大于3.6,归一化总滞回耗能均大于4.5,在极限状态下,等效黏滞阻尼系数均大于0.2;设计成柱破坏和节点破坏的试件延性系数均小于3.0,归一化总滞回耗能均小于2.2,极限状态下等效黏滞阻尼系数均小于0.15.合理设计的钢筋冷挤压套筒连接装配式节点具有良好的抗震性能.
Abstract:
To investigate the seismic behaviors of assembled beam-column joints with rebars spliced by pressed sleeves, quasi-static tests were performed on seven assembled beam-column joints and one cast-in-situ joint specimen. The failure patterns, the hysteretic characteristics, the ductility, and the energy dissipation of the specimens were analyzed. The results show that with similar parameters, the energy-dissipating capacity and the overall seismic performance of the assembled beam-column joints are equal to those of the cast-in-situ joints. The joints with expected flexural failure at the beam end, bending failure of the column, and shear failure in the joint core area achieve the expected failure modes. The equivalent ultimate inter-story drift ratios of the assembly specimens are greater than 1/33. The ductility coefficients of the specimens with failure at the beam end are greater than 3.6; the normalized total hysteretic dissipative energy values are greater than 4.5; the equivalent viscous damping coefficients at the limit state are greater than 0.2. The ductility coefficients of the specimens with bending failure of the column and shear failure in the joint zone are less than 3.0; the normalized total hysteretic dissipative energy values are less than 2.2; the equivalent viscous damping coefficients at the limit state are less than 0.15. Reasonable designed assembly beam-column joints with rebars spliced by pressed sleeves exhibit good seismic behaviors.

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备注/Memo

备注/Memo:
收稿日期: 2019-03-02.
作者简介: 陈庆军(1975—),男,博士,副教授,qjchen@scut.edu.cn.
基金项目: 国家自然科学基金资助项目(51578246)、广东省自然科学基金资助项目(2017A030313263)、华南理工大学亚热带建筑科学国家重点实验室自主研究课题资助项目(2018ZC11).
引用本文: 陈庆军,潘忠尧,蔡健,等.冷挤压套筒连接装配式梁柱节点抗震性能试验研究[J].东南大学学报(自然科学版),2019,49(5):918-925. DOI:10.3969/j.issn.1001-0505.2019.05.015.
更新日期/Last Update: 2019-09-20