| 八边形中空夹层钢管混凝土偏心受压柱的试验研究 |
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| 引用本文： | 杨俊杰,高子瑶,吴祖成.八边形中空夹层钢管混凝土偏心受压柱的试验研究[J].工业建筑,2009,39(3). |
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| 作者姓名： | 杨俊杰 高子瑶 吴祖成 |
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| 作者单位： | 1. 浙江工业大学建工学院,杭州,310014
2. 台州电业局,浙江台州,317000 |
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| 基金项目： | 浙江省建设厅科技项目 |
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| 摘 要： | 以长细比和偏心率为变化参数,对4个八边形中空夹层钢管混凝土偏心受压构件进行试验研究。通过对试验现象和试验结果的详细分析,总结出此类构件的一些力学特点,并与相同条件下的圆中空夹层钢管混凝土、方中空夹层钢管混凝土进行比较,发现其承载能力比方形截面柱高,比圆形截面柱稍低。其承载力影响因素主要有构件的轴压性能、抗弯性以及偏心率。在分析试验结果和利用数值分析的基础上,提出压弯构件承载力验算公式,与试验结果吻合良好。
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| 关 键 词： | 中空夹层 八边形 长细比 偏心率 荷载-位移曲线 承载力 |
EXPERIMENTAL STUDY OF CONCRETE-FILLED DOUBLE SKIN STEEL TUBULAR COLUMNS WITH OCTAGON SECTION UNDER ECCENTRIC LOADS |
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| Yang Junjie,Gao Zijun,Wu Zuxian.EXPERIMENTAL STUDY OF CONCRETE-FILLED DOUBLE SKIN STEEL TUBULAR COLUMNS WITH OCTAGON SECTION UNDER ECCENTRIC LOADS[J].Industrial Construction,2009,39(3). |
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| Authors: | Yang Junjie Gao Zijun Wu Zuxian |
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| Abstract: | The main parameters varied in the study are the slenderness ratio and eccentricity of load.Four concrete-filled double skin steel tubular(CFDSST) columns under eccentric loads and two columns under axial compression are studied.Based on the analysis of the experimental phenomenon in detail,some mechanic characteristics are put forward.Through the comparison with other two kinds of CFDSST(one with circular section,and the other with square section),the bearing capacity of the members is larger than that of the former and lesser than that of the latter.Finally,a simplified formula is proposed in the paper,and the calculated results are in good agreement with the test results or the mathematic results.The results are valuable for engineering designers. |
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| Keywords: | double skin octagon slenderness ratio eccentricity load-displacement curve bearing capacity |
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