| 体外预应力钢-混凝土组合梁抗弯承载能力计算公式及试验研究 |
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| 引用本文： | 冉嵬,王景全,刘钊.体外预应力钢-混凝土组合梁抗弯承载能力计算公式及试验研究[J].现代交通技术,2005,2(5):24-27. |
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| 作者姓名： | 冉嵬 王景全 刘钊 |
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| 作者单位： | 东南大学土木工程学院,江苏,南京,210096 |
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| 摘 要： | 本文对体外预应力钢一混凝土简支组合梁的抗弯承载能力进行了静载全过程试验研究。根据4根试验梁在两点对称集中加载下的试验结果，分析了体外预应力钢一混凝土组合梁抗弯承载能力的主要影响因素，建立了抗弯承载能力的计算模型，并推导了相应的计算公式。结果表明，其计算值与实测值吻合良好。
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| 关 键 词： | 桥梁 体外预应力 钢-混凝土组合梁 抗弯承载能力 滑移效应 |
| 文章编号： | 1672-9889（2005）05-0024-04 |
| 收稿时间： | 2005-05-17 |
| 修稿时间： | 2005年5月17日 |
Calculating Formula and Experiment Study on Ultimate Flexural Capacity of External Prestressed Composite Steel- Concrete Beams |
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| RAN Wei,WANG Jing -quan,LIU Zhao.Calculating Formula and Experiment Study on Ultimate Flexural Capacity of External Prestressed Composite Steel- Concrete Beams[J].Modern Transportation Technology,2005,2(5):24-27. |
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| Authors: | RAN Wei WANG Jing -quan LIU Zhao |
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| Institution: | College of Civil Engineering, Southeast University, Nanjing 210096, China |
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| Abstract: | Experiments have been conducted on the ultimate flexural capacity in composite steel -concrete beams with external post - tensioning tendons. In terms of the test results of 4 beam specimens under two symmetrical concentrated loads, the factors affecting the ultimate flexural capacity are discussed and analyzed in detail. Models have been established and formulae derived from predicting the ultimate flexural capacity in the composite beams with external prestressing. The predicted values are in good agreement with experimental results. |
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| Keywords: | bridge external prestressing composite steel - concrete beam ultimate flexural capacity slip effect |
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