高强箍筋约束高强混凝土柱的偏心受压试验研究

史庆轩; 杨坤; 姜维山; 张兴虎; 孟和

doi:10.13204/j.gyjz200910019

高强箍筋约束高强混凝土柱的偏心受压试验研究

doi: 10.13204/j.gyjz200910019

1.
1. 西安建筑科技大学土木工程学院,西安 710055;
2.
2. 长安大学建筑工程学院,西安 710064

基金项目:

国家自然科学基金资助项目(50778149);陕西省自然科学基础研究基金(SJ08E202);陕西省教育厅专项科研项目资助(07JK291)

详细信息

作者简介:
史庆轩，男，1963年4月出生，教授，博导。E-mail:qingxuanshi@sina.com

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- 文章访问数: 74
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- 被引次数: 0
出版历程
- 收稿日期: 2008-10-10
- 刊出日期: 2009-10-20

RESEARCH OF HSC COLUMNS BEHAVIOR CONFINED BY HIGH-STRENGTH STIRRUPS UNDER ECCENTRIC LOADING

1.
1. School of Civil Eng. ,Xi’an Univ. of Arch. &Tech. ,Xi’an 710055,China;
2.
2. School of Civil Eng. ,Chang’an Univ. ,Xi’an 710064,China

摘要

摘要: 以箍筋间距、箍筋形式和偏心矩为变化参数,对10根高强箍筋约束高强混凝土柱进行偏心受压试验,研究这类柱的偏心受压性能。通过试验,观察高强箍筋约束高强混凝土柱分别在大小偏心受压时的破坏过程与破坏形态,并记录各个试件荷载挠度曲线;各个加载阶段的截面应变分布;对比分析各个试件的弯矩-曲率关系曲线;试验表明:箍筋间距较小的高强连续复合箍筋约束高强混凝土柱具有非常好的延性性能,且试验测得柱的受压承载能力均高于按现行规范的计算值;采用约束混凝土本构关系对试件进行截面分析,得到弯矩-曲率关系曲线,且与试验曲线吻合较好。
- 约束混凝土 /
- 高强箍筋 /
- 偏心受压 /
- 有限元分析
Abstract: A total of 10 high-strength concrete columns confined by high-strength stirrups were tested under eccentric loading.The test parameters included the arrangement,spacing of confinement reinforcement and the eccentricities.Test results indicate that,columns confined by stirrups with small spacing and high strength show extremely ductile behavior.Also the experimental column capacities are well above the analytical capacities indicated by the interaction diagrams based on the code.The analytical moment-curvature curves obtained using confined concrete model are in good agreement with the experimental ones.
- confined concrete /
- high-strength stirrups /
- eccentric loading /
- finite element analysis

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参考文献(7)

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