| CRB550级箍筋混凝土柱抗震性能试验研究 |
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| 引用本文： | 韩小雷,戚永乐,关柱良,徐伟硕,谢纯.CRB550级箍筋混凝土柱抗震性能试验研究[J].建筑结构学报,2011,32(12):235-241. |
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| 作者姓名： | 韩小雷 戚永乐 关柱良 徐伟硕 谢纯 |
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| 作者单位： | （1.华南理工大学 亚热带建筑科学国家重点实验室， 广东广州 510640；;
2.华南理工大学 土木与交通学院， 广东广州 510640； 3.广东高效钢筋技术有限公司， 广东广州 510530) |
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| 基金项目： | “十一五”国家科技支撑计划项目(2006BAJ04A12); 亚热带建筑科学国家重点实验室自主研究项目(2009ZA04) |
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| 摘 要： | 为研究配置CRB550级箍筋的混凝土柱的抗震性能，设计了32个不同钢材种类的箍筋、箍筋直径、纵筋配筋率、轴压比等的钢筋混凝土柱试件，并对其进行低周反复水平荷载作用下的拟静力试验，分组对比了配置HPB235、HRB335和CRB550三种强度等级箍筋的混凝土柱试件的骨架曲线、延性、耗能性能、强度和刚度退化规律。结果表明：采用较小直径的CRB550级高强钢筋代替HPB235和HRB335级钢筋作为混凝土柱的箍筋，即使在高轴压比（0.7、0.8、0.9）的情况下，抗震性能差异不大。在CRB550钢筋满足GB 13788-2008《冷轧带肋钢筋》各项材料性能要求的前提下，CRB550级钢筋能按等强原则代替HPB235和HRB335级钢筋作为箍筋使用，从而达到节省钢筋用量，节约能源的目的。
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| 关 键 词： | CRB550级箍筋 钢筋混凝土柱 骨架曲线 耗能 拟静力试验 延性 |
Comparative experimental research on earthquake-resistant behavior of reinforced concrete columns with CRB550 stirrups |
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| HAN Xiaolei,QI Yongle,GUAN Zhuliang,XU Weishuo,XIE Chun.Comparative experimental research on earthquake-resistant behavior of reinforced concrete columns with CRB550 stirrups[J].Journal of Building Structures,2011,32(12):235-241. |
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| Authors: | HAN Xiaolei QI Yongle GUAN Zhuliang XU Weishuo XIE Chun |
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| Affiliation: | (1.State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou 510640, China;;
2.College of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510640, China;;
3.Guangdong High Efficient Reinforced Technology Co., Ltd, Guangzhou 510530, China) |
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| Abstract: | In order to reveal the seismic performance of concrete columns with CRB550 stirrups,32 reinforced concrete columns which used different grade,amount and diameter of stirrups were designed and quasi-static experiments under low cyclic loading were carried out.The skeleton curve,ductility,energy dissipation,strength and stiffness degradation rule were compared.The results show that,columns with smaller diameter high-strength steel CRB550 stirrups,instead of HPB235 and HRB335 steel bar,still have good seismic ... |
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| Keywords: | RC column CRB550 steel bar quasi-static test skeleton curve ductility energy dissipation |
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