| FRP强约束混凝土配筋柱稳定承载力的试验研究 |
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| 引用本文： | 潘景龙,胡忠君,徐田.FRP强约束混凝土配筋柱稳定承载力的试验研究[J].工业建筑,2005,35(9):24-28. |
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| 作者姓名： | 潘景龙 胡忠君 徐田 |
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| 作者单位： | 哈尔滨工业大学,土木工程学院,哈尔滨,150090;哈尔滨工业大学,土木工程学院,哈尔滨,150090;哈尔滨工业大学,土木工程学院,哈尔滨,150090 |
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| 摘 要： | 通过长细比Lb为4.5～17.5的6根截面经圆弧化处理、外包FRP后的矩形截面的钢筋混凝土柱的轴心受压试验,研究了长细比对稳定承载力的影响。结果表明:长细比对FRP约束混凝土柱的稳定承载力影响远比螺旋配筋柱和普通钢筋混凝土严重,但当长细比不大于17.5时,其稳定承载力仍比未包裹柱高20%(约束比ξ=0.188)以上。讨论了影响稳定系数φ的因素,给出了稳定系数的参考值,可供工程设计人员参考。
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| 关 键 词： | FRP 约束混凝土 轴心受压 稳定系数 中长柱 |
| 收稿时间： | 11 26 2004 12:00AM |
| 修稿时间： | 2004年11月26 |
STABLE BEARING CAPACITY EXPERIMENTAI STUDY OF THE AXIAL-COMPRESSION REINFORCED CONCRETE SLENDER COLUMNS CONFINED BY FIBER REINFORCED PLASTIC |
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| Pan Jinglong,Hu Zhongjun,Xu Tian.STABLE BEARING CAPACITY EXPERIMENTAI STUDY OF THE AXIAL-COMPRESSION REINFORCED CONCRETE SLENDER COLUMNS CONFINED BY FIBER REINFORCED PLASTIC[J].Industrial Construction,2005,35(9):24-28. |
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| Authors: | Pan Jinglong Hu Zhongjun Xu Tian |
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| Abstract: | By the axial compression tests of total of 6 reinforced concrete slender columns wrapped with fiber reinforced plastics(the column has elliptical section and slenderness ratio is from 4.5～17.15),the influence of slenderness on the stable bearing capacity of the column is studied.The results indicate:slenderness has more influence on the stable bearing capacity of FRP confined concrete column than RC column,when slenderness ratio is less than 17.5,the stable bearing capacity of FRP confined concrete column is still 20% higher than that of the RC column(confined ratio ξ=0.188).Some factors that maybe influence stable factor are also discussed.At last,the simplified calculating formulas of stable factor are summarized,which can provide a reference for engineering designer. |
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| Keywords: | fiber reinforced plastics(FRP) reinforced concrete axial compression stable factor slender column |
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