| 500MPa级钢筋混凝土偏心受压柱受力性能的试验研究 |
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| 引用本文： | 刘立新,李洪彦,张艳丽,李千.500MPa级钢筋混凝土偏心受压柱受力性能的试验研究[J].郑州大学学报(工学版),2007,28(2):30-34. |
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| 作者姓名： | 刘立新 李洪彦 张艳丽 李千 |
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| 作者单位： | 郑州大学,土木工程学院,河南,郑州,450001 |
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| 基金项目： | 国家高技术研究发展计划(863计划);国家自然科学基金 |
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| 摘 要： | 通过对9根350 mm×200 mm×2200 mm 500 MPa级钢筋混凝土偏心受压柱受力性能的试验,分析了偏心受压柱荷载—挠度曲线、荷载—钢筋应变曲线、荷载—混凝土压应变曲线以及破坏形态的特点.试验研究结果表明,500 MPa级钢筋在柱中与混凝土协同工作性能较好,其强度得到了充分发挥.在试验和理论分析的基础上,提出了500 MPa级钢筋在混凝土柱中的强度设计取值fy=450 MPa和受压承载力计算公式的建议.
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| 关 键 词： | 500MPa级钢筋 偏心受压柱 试验研究 |
| 文章编号： | 1671-6833（2007）02-0030-05 |
| 修稿时间： | 2006-12-012007-02-28 |
Experimental Study on Behavior of Eccentrically Loaded R.C. Columns with 500 MPa Steel Bars |
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| LIU Li-xin,LI Hong-yan,ZHANG Yan-li,LI Qian.Experimental Study on Behavior of Eccentrically Loaded R.C. Columns with 500 MPa Steel Bars[J].Journal of Zhengzhou University: Eng Sci,2007,28(2):30-34. |
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| Authors: | LIU Li-xin LI Hong-yan ZHANG Yan-li LI Qian |
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| Affiliation: | School of Civil Engineering, Zhengzhou University, Zhengzhou 450001, China |
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| Abstract: | By experiment of nine eccentrically loaded columns with 500 MPa steel bars,the load-deflection curves ,the load-strain curves of the steel bar, the load-compression strain curves of concrete and failure modes were analyzed . The experiment shows that 500 MPa steel bar works harmonically with concrete. Finally, the design value of 500 MPa steel bar is 450 MPa in column and the formula of calculating the ultimate strength are proposed based on the experiment and the comprehensive theoretical analysis. |
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| Keywords: | 500 MPa steel bar eccentrically loaded reinforced concrete column experimental study |
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