| 集中荷载作用下无粘结预应力混凝土梁的试验研究 |
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| 引用本文： | 刘丰,陈晓宝. 集中荷载作用下无粘结预应力混凝土梁的试验研究[J]. 合肥工业大学学报(自然科学版), 2001, 24(5): 880-884 |
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| 作者姓名： | 刘丰 陈晓宝 |
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| 作者单位： | 1. 广州大学土木工程学院
2. 合肥工业大学土木建筑工程学院 |
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| 基金项目： | 国家自然科学基金资助项目 ( 5 930 80 71 |
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| 摘 要： | 针对无粘结预应力梁的特点 ,对集中荷载作用下抛物线布筋的无粘结部分预应力混凝土简支梁和连续梁进行对比试验 ,分析了它们的受弯性能。结果表明 ,合理配筋的两跨同时对称加载的连续梁能在形成充分塑性铰后而破坏 ,无粘筋极限应力增量有所提高 ,而连续梁的极限承载力有较大提高。
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| 关 键 词： | 无粘结预应力混凝土 连续梁 试验研究 |
| 文章编号： | 1003-5060(2001)05-0880-05 |
| 修稿时间： | 2001-04-19 |
Experimental study of unbonded prestressed concrete beams under concentrated load |
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| LIU Feng ,CHEN Xiao bao. Experimental study of unbonded prestressed concrete beams under concentrated load[J]. Journal of Hefei University of Technology(Natural Science), 2001, 24(5): 880-884 |
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| Authors: | LIU Feng CHEN Xiao bao |
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| Affiliation: | LIU Feng 1,CHEN Xiao bao 2 |
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| Abstract: | Two continuous beams have been compared with two simply supported beams through experimental study of the beams of unbonded prestressed concrete with tendons of parabolic curve profile under concentrated load.Tests on bending behavior show that two span contiuous beam with certain reinforcement index under symmetric loads may fail when three plastic hinges occur. Compared with the simply supported beams, the continuous beams have gained a little higher increment of ultimate stresses and a much higher ultimate bending capactity. |
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| Keywords: | unbonded prestressed concrete continuous beam experimental study |
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