| 轻骨料矩形钢管混凝土框架抗震性能试验研究 |
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| 引用本文： | 李斌,张飞.轻骨料矩形钢管混凝土框架抗震性能试验研究[J].包头钢铁学院学报,2010(3). |
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| 作者姓名： | 李斌 张飞 |
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| 作者单位： | 内蒙古科技大学建筑与土木工程学院; |
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| 摘 要： | 为了探讨轻骨料矩形钢管混凝土框架的抗震性能,以柱截面含钢率、梁截面形式为参数进行了4榀框架试件在恒定轴力与低周反复水平荷载共同作用下的试验研究.研究结果表明,轻骨料矩形钢管混凝土框架结构的滞回曲线较为饱满,没有明显的捏缩现象,表现出良好的抗震耗能能力;各试件位移延性系数在3.00~3.74之间,能量耗散系数在1.438~2.324之间,表明轻骨料矩形钢管混凝土框架结构具有良好的塑性变形能力和抗震耗能能力;随着柱含钢率的增大,框架的承载力、延性和耗能能力有不同程度的提高;在相同柱截面含钢率情况下,采用工字型钢梁的框架与采用轻骨料矩形钢管混凝土的框架相比,延性与耗能能力有小幅的提升,刚度退化较为平缓.
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| 关 键 词： | 轻骨料矩形钢管混凝土 框架 抗震性能 延性 耗能 |
Experimental research on seismic behavior of lightweight aggregate concrete filled RST frames |
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| LI Bin,ZHANG Fei.Experimental research on seismic behavior of lightweight aggregate concrete filled RST frames[J].Journal of Baotou University of Iron and Steel Technology,2010(3). |
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| Authors: | LI Bin ZHANG Fei |
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| Affiliation: | LI Bin,ZHANG Fei(Architecture , Civil Engineering School,Inner Mongolia University of Science , Technology Baotou 014010,China) |
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| Abstract: | In order to realize the seismic behavior of lightweight aggregate concrete filled RST(rectangular steel tube)frames,four test specimens were experimentally studied under constant axial load and cyclical lateral load.The form of beam section and steel ratio of column section are considered as experimental parameters.The examination results show that the hysteretic curves of lateral load versus lateral displacement of the frames are of plump shuttle in shape,indicating that the frames have excellent seismic b... |
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| Keywords: | lightweight aggregate concrete filled RST frame seismic behavior ductility energy dissipation |
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