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| 钢骨-钢管混凝土柱抗震性能试验研究 | |
| 引用本文： | 徐亚丰,赵敬义,张世宪,卢小一.钢骨-钢管混凝土柱抗震性能试验研究[J].建筑钢结构进展,2009,11(3). |
| 作者姓名： | 徐亚丰 赵敬义 张世宪 卢小一 |
| 作者单位： | 1. 沈阳建筑大学,土木工程学院,沈阳,110168 2. 中国航天建筑设计研究院济南分院,济南,250012 3. 中国建筑北京设计研究院有限公司,北京,100037 4. 浙江城建建设集团有限公司,杭州,310007 |
| 基金项目： | 辽宁省教育厅科研计划 |
| 摘 要： | 了解钢骨-钢管混凝土柱在低周往复荷载作用下的力学性能,为钢骨-钢管混凝土柱的推广应用提供依据.本文对5根构件开展拟静力试验并对试验结果进行了分析,得到不同轴压比和不同含骨率下的荷载-位移滞回曲线,并分析比较了轴压比和含钢率对构件耗能及延性的影响.结果表明,钢骨-钢管混凝土柱抗震性能良好,含骨率的增加和轴压比的减小都有利于试件承载力的提高;随着试验位移增大,试件累积耗能和等效粘滞阻尼系数都增大,表明试件耗能能力不断增大,如此就能有效地抵御地震作用,而且试件轴压比越小,含骨率越大试件的耗能能力越强;含骨率的增大可以减缓试件的刚度退化,轴压比的减小对减缓刚度退化影响显著;即使在高轴压比下钢骨-钢管混凝土柱仍能满足规范对抗震极限位移角的要求,试件延性系数随含骨率增大而增大,随轴压比的增大而减小. |
| 关 键 词： | 抗震性能 耗能 刚度退化 延性 |
Experimental Research on Seismic Behavior of Circular Steel Tube Composite Column Filled with Steel Reinforced Concrete |
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| XU Ya-feng,ZHAO Jing-yi,ZHANG Shi-xian,LU Xiao-yi.Experimental Research on Seismic Behavior of Circular Steel Tube Composite Column Filled with Steel Reinforced Concrete[J].Progress in Steel Building Structures,2009,11(3). | |
| Authors: | XU Ya-feng ZHAO Jing-yi ZHANG Shi-xian LU Xiao-yi |
| Abstract: | To understand mechanical properties of circular steel tube composite columns filled with steel reinforced concrete under cyclic loading,the tests were conducted,which provide basis for the application of these columns.Five circular steel tube composite columns filled with steel reinforced concrete under horizontal cyclic loading are tested,and the hesteretic curves of the columns with different steel ratios under different compression ratios are obtained.The effects of different axial compression ratios and... |
| Keywords: | seismic performance energy dissipation stiffness degradation ductility |
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