| 预应力高强混凝土梁延性性能分析与试验研究 |
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| 引用本文： | 张利梅, 赵顺波, 黄承逵. 预应力高强混凝土梁延性性能分析与试验研究[J]. 工程力学, 2005, 22(3): 166-171. |
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| 作者姓名： | 张利梅 赵顺波 黄承逵 |
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| 作者单位： | 1.大连理工大学土木水利学院, 辽宁, 大连, 116023;2. 华北水利水电学院土木工程系, 河南, 郑州, 450011 |
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| 摘 要： | 介绍了24根预应力混凝土梁的延性性能试验结果,试验梁的混凝土强度等级为C40~C80、预应力比率为0.6~1.0、配筋指数为0.17~0.32、钢绞线的延伸率为5.0%和3.6%.结合试验梁的荷载~挠度全曲线分析计算结果,研究了混凝土强度等级、钢绞线延伸率、预应力比率、配筋指数等因素对预应力混凝土梁位移延性系数和极限承载破坏形态的影响规律,提出了设计建议.
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| 关 键 词： | 结构工程 预应力混凝土 高强混凝土 梁 延性 |
| 文章编号： | 1000-4750(2005)03-0166-06 |
| 收稿时间： | 2003-07-03 |
| 修稿时间： | 2003-10-01 |
EXPERIMENTAL STUDY OF DUCTILILY OF PRESTRESSED HIGH-STRENGTH CONCRETE BEAMS |
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| ZHANG Li-mei, ZHAO Shun-bo, HUANG Cheng-kui. EXPERIMENTAL STUDY OF DUCTILILY OF PRESTRESSED HIGH-STRENGTH CONCRETE BEAMS[J]. Engineering Mechanics, 2005, 22(3): 166-171. |
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| Authors: | ZHANG Li-mei ZHAO Shun-bo HUANG Cheng-kui |
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| Affiliation: | 1.Institute of Civil &Hydraulic Engineering, Dalian University of Technology, Liaoning, Dalian 116023, China;2. Dept. of Civil Engineering, North China Institute of Water Conservancy and Hydropower, Henan, Zhengzhou 450011, China |
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| Abstract: | Experimental results about ductility of 24 prestressed concrete beams under static test are presented. For the test beams, the grade of concrete strength is from C40 to C80, the prestress ratio is from 0.6 to 1.0; the reinforcement index is from 0.17 to 0.32; and the uniform extended ratio of strand is 3.6% and 5.0%. The analysis of load deflection relationship of test beams is conducted. The effects of the concrete strength, the extended ratio of strand, the prestress ratio, and the reinforcement index on the displacement ductility and the failure states of prestressed concrete beams are studied. Design suggestions are proposed. |
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| Keywords: | structural engineering prestressed concrete high-strength concrete beam ductility |
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