| 轨道交通槽形梁试验研究 |
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| 引用本文： | 吴迅,付坤.轨道交通槽形梁试验研究[J].城市轨道交通研究,2005,8(6):47-50. |
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| 作者姓名： | 吴迅 付坤 |
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| 作者单位： | 同济大学桥梁工程系,200092,上海 |
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| 摘 要： | 介绍了跨径为29.26 m的预应力槽形梁足尺模型试验,并将试验结果与有限元分析结果进行了对比。分析表明:槽形梁道床板的收缩可按道床板降温30℃计算;道床板的剪力滞效应与理论计算相符;槽形梁的抗扭能力较弱;道床板的收缩和徐变的影响使开裂荷载值下降,建议加强道床板的预应力配置。
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| 关 键 词： | 槽形梁 桥梁试验 有限元分析 |
| 收稿时间： | 2005-05-29 |
| 修稿时间： | 2005年5月29日 |
An Experimental Study on the Trough Girder for Rail Transit |
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| Wu Xun,Fu Kun.An Experimental Study on the Trough Girder for Rail Transit[J].Urban Mass Transit,2005,8(6):47-50. |
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| Authors: | Wu Xun Fu Kun |
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| Institution: | Department of Bridge Ergineering, Tongji University, 200092, Shanghai, China |
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| Abstract: | With an introduction of the full scale test of a trough shaped prestressed concrete girders with a span of 29.26 m,this paper compares the results of the test and a finite element analysis,discusses the shrinkage on girder slab,the shear lag on girder slab,the performance of the girder torsion and the capacity of the girder contra-crack,argues that an effective solution shall be a strengthened disposition of the prestressed force on girder slab. |
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| Keywords: | trough girder bridge testing finite element analysis |
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