| 大偏心距夹心梁柱节点抗震性能试验 |
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| 引用本文： | 华建民,陈祥,曹晖.大偏心距夹心梁柱节点抗震性能试验[J].重庆大学学报(自然科学版),2011,34(8):128-133. |
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| 作者姓名： | 华建民 陈祥 曹晖 |
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| 作者单位： | 重庆大学土木工程学院;重庆大学山地城镇建设与新技术教育部重点实验室; |
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| 基金项目： | 重庆市科技攻关资助项目(CSTC,2010AB0007) |
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| 摘 要： | 完成了3个梁柱偏心距大于1/4柱宽的夹心十字型平面节点试件的低周反复加载试验,对试件的抗震性能、损伤过程、失效模式、位移延性、节点区受剪承载力等方面进行了分析。结果表明此类偏心夹心节点具有良好的承载能力和抗震性能,并且可以用X筋替代部分节点区箍筋承担节点区剪力,但梁筋在节点区的锚固性能较弱。与普通夹心节点相比,大偏心夹心节点核芯区附近柱纵筋受力较为不利。
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| 关 键 词： | 大偏心夹心梁柱节点 抗剪承载力 抗震性能 混凝土强度 失效模式 |
| 收稿时间： | 5/4/2011 12:00:00 AM |
Experimental study on seismic behavior of beam-column sandwich joints with big beam-column eccentricity |
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| HUA Jian Min,CHEN Xiang and CAO Hui.Experimental study on seismic behavior of beam-column sandwich joints with big beam-column eccentricity[J].Journal of Chongqing University(Natural Science Edition),2011,34(8):128-133. |
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| Authors: | HUA Jian Min CHEN Xiang and CAO Hui |
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| Institution: | HUA Jian Mina,b,CHEN Xianga,CAO Huia,b (a.College of Civil Engineering,b.Key Laboratory of New Technology for Construction of Cities in Mountain Area,Ministry of Education,Chongqing University,Chongqing 400045,P.R.China) |
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| Abstract: | Three specimens of sandwich joints with eccentricity being larger than a quarter of the column width in middle floor of frame are designed and loaded under cyclic loading.Their shear capacity,failure modes,and ductility,as well as energy dissipation are analyzed.The results show that the performance of sandwich joints with big eccentricity is good under cyclic loading.X-type reinforcements can be used to substitute for stirrups in the joint to bear shear forces.But the anchorage of longitudinal bars of beam... |
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| Keywords: | sandwich beam-column joint of big beam-column eccentricity shear strength seismic performance concrete strength failure modes |
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