| 型钢-混凝土后锚固节点抗震性能试验研究 |
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| 引用本文： | 谢群,王欣. 型钢-混凝土后锚固节点抗震性能试验研究[J]. 华中科技大学学报(城市科学版), 2011, 28(3) |
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| 作者姓名： | 谢群 王欣 |
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| 作者单位： | 1. 济南大学土木建筑学院,山东济南250022;山东省建筑结构鉴定加固与改造重点实验室,山东济南250101
2. 山东省建筑结构鉴定加固与改造重点实验室,山东济南,250101 |
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| 基金项目： | 山东省建筑结构鉴定加固与改造重点实验室开放课题(JG01); 济南大学博士基金(XBS0802) |
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| 摘 要： | 进行了四个型钢与混凝土后锚固连接节点的低周反复加载试验,采用化学植筋式连接方式.试件破坏前钢筋均达到屈服,仅钢筋周围的混凝土发生局部破坏,可判断为钢材破坏.随着埋深的增加,试件的屈服荷载和峰值荷载均有不同程度的提高.滞回曲线、刚度退化曲线、延性及耗能等抗震指标均显示该类节点具有较好的抗震性能,达到峰值荷载后承载力无明显降低,仍能以自身的变形能力吸收地震能力,增加埋深和植筋数量有助于提高节点的抗震性能.
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| 关 键 词： | 低周反复 后锚固 型钢-混凝土节点 延性 |
Experimental Study on Seismic Behavior of Post-Installed Anchors in Steel-to-Concrete Connections |
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| XIE Qun,WANG Xin. Experimental Study on Seismic Behavior of Post-Installed Anchors in Steel-to-Concrete Connections[J]. Journal of Huazhong University of Science and Technology, 2011, 28(3) |
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| Authors: | XIE Qun WANG Xin |
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| Affiliation: | XIE Qun1,2,WANG Xin2 (1.School of Civil Engineering and Architecture,University of Jinan,Jinan 250 022,China,2.Shandong Provincial Key Lab of Appraisal and Retrofitting in Building Structu res,Jinan 250101,China) |
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| Abstract: | Four steel-to-concrete connections made with bonded-in reinforcement under re versed cyclic loading have been tested.The results show that steel bars reach y ield strength before connection failure and the ultimate capacity is governed by strength of reinforcement following slight concrete cone failure nearby.Both y ield load and ultimate capacity of connections increase individually with more e mbedment depth of bonded-in reinforcement.Seismic characteristics of hysteresi s curves,ductility and dissipation... |
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| Keywords: | reversed cyclic loading post-installed anc hors steel-to-concrete connections ductility |
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