| 钢管高强混凝土组合柱抗震性能试验研究 |
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| 引用本文： | 钱稼茹,康洪震.钢管高强混凝土组合柱抗震性能试验研究[J].建筑结构学报,2009,30(4):85-93. |
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| 作者姓名： | 钱稼茹 康洪震 |
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| 作者单位： | 清华大学结构工程与振动教育部重点实验室;唐山学院土木工程系; |
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| 基金项目： | 国家自然科学基金重大研究计划重点项目(90815025) |
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| 摘 要： | 为研究钢管高强混凝土组合柱的抗震性能,完成了10个试件的拟静力试验。试验主要变化参数为轴压比和配箍特征值,探讨了组合柱在反复水平荷载作用下的破坏形态、滞回特性、位移延性、耗能比、截面应变分布和承载力等受力性能。试验结果表明:10个试件的破坏形态为柱根部混凝土压溃而丧失竖向承载力,力-位移滞回曲线饱满,位移延性系数在4.0以上,极限位移角大于1/40,以耗能比表示的耗能能力接近。用平截面假定和叠加法计算得到的试件在轴压力作用下的正截面承载力与试验结果符合较好,《钢管混凝土叠合柱结构技术规程》(CECS 188:2005)方法计算的正截面承载力偏小较多。
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| 关 键 词： | 钢管高强混凝土组合柱 抗震性能 拟静力试验 配箍特征值 轴压比 |
| 收稿时间： | 2009-08-05 |
| 修稿时间： | 2009-08-05 |
Experimental study on seismic behavior of high-strength concrete-filled steel tube composite columns |
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| QIAN Jiaru,KANG Hongzhen.Experimental study on seismic behavior of high-strength concrete-filled steel tube composite columns[J].Journal of Building Structures,2009,30(4):85-93. |
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| Authors: | QIAN Jiaru KANG Hongzhen |
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| Affiliation: | 1.Key Laboratory for Structure Engineering and Vibration of Ministry of Education;Tsinghua University;Beijing 100084;China;2.Department of Civil Engineering;Tangshan College;Tangshan 063000;China |
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| Abstract: | To study the seismic behavior of high-strength concrete-filled steel tube composite columns,quasi-static tests on 10 specimens were conducted.The experimental parameters included the axial force ratio and the stirrup characteristic value.The failure modes,hysteretic characteristics,ductility,energy dissipation ability,seciton strain distribution and load-carrying capacity were studied.The experimental results indicate that the failure mode of the specimens is the crushing of bottom concrete and loss of vert... |
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| Keywords: | high-strength concrete-filled steel tube composite column pseudo-static test axial compressive force ratio stirrup characteristic value seismic behavior |
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