单线铁路双跨简支π梁桥在列车动载作用下力学性能的研究 |
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引用本文: | 付江涛,魏周博.单线铁路双跨简支π梁桥在列车动载作用下力学性能的研究[J].福建建材,2011(9):4-5,13. |
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作者姓名: | 付江涛 魏周博 |
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作者单位: | 兰州交通大学土木工程学院 |
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摘 要: | 对青藏铁路某简支板梁桥进行现场动载试验,得到该桥梁结构在列车通过时的动力响应;同时采用midas/civil软件建模对该桥进行动力学的有限元分析得到数值解,将实测值和计算值进行对比分析,判断了其承载力和工作性能,为桥梁的加固与否提供依据。
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关 键 词: | 双跨简支π梁桥 动载试验 动力性能 有限元分析 状态评估 桥梁加固 |
Dynamic Load Test and Finite Element Analysis of Existing Double-span Simply Supported Plate Girder Bridge in the Railway Line |
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Authors: | FU Jiang-tao WEI Zhou-bo |
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Affiliation: | (School of Civil Engineering,Lanzhou Jiaotong University,Lanzhou 730070) |
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Abstract: | With the rapidly developing of our the country’s economy,railway transportation was proposed high-speed and heavy-load requirements.Due to the design,construction and Bridges long-serving reason,bridge diseases which have existed severely and affect the operation safety and railway transport capacity,are urgently needed reinforcement.The scene dynamic load tests are carried out on the double-span simply supported plate girder bridge in Qinghai-Tibet railway,which studied the dynamic response of the bridge structure when the train running on it.And the model was established by midas/civil to get numerical solutions of the dynamic behaviors which were comparatively analysed in order to evaluate the carrying capacity of the bridge.It provides reference datas for bridge strengthening. |
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Keywords: | simply supported plate girder bridge dynamic 1oad test dynamic performance finite element analysis state assessment |
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