| 武汉天兴洲公铁两用长江大桥主桥荷载验收试验研究 |
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| 引用本文： | 武勇.武汉天兴洲公铁两用长江大桥主桥荷载验收试验研究[J].桥梁建设,2010(1). |
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| 作者姓名： | 武勇 |
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| 作者单位： | 成都铁路局,四川,成都,610081 |
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| 摘 要： | 武汉天兴洲公铁两用长江大桥主桥为(98+196+504+196+98)m双塔三索面钢桁梁斜拉桥,上层6车道公路、下层4线铁路,是目前世界上主跨跨度、设计荷载最大的公铁两用钢桁梁斜拉桥。大桥的荷载验收工作突破常规,采用科研的思路和方法。主要内容有静力试验、动载试验和前期关键技术研究成果的实桥验证,首次从系统动力学的角度出发对车辆、桥梁和轨道的动力特性及动力响应进行了全面、系统的评估。根据相关标准、规范系统总结出一套完善的新型结构公铁两用桥梁荷载验收的标准和方法。第一期试验结果表明:大桥在设计荷载作用下具有足够的强度和刚度,满足设计要求;在试验速度80 km/h下,列车运行的平稳性、安全性和主桥结构的动力性能满足相关规范和设计要求。
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| 关 键 词： | 天兴洲大桥 公路铁路两用桥 荷载试验 静力试验 动载试验 验收标准 |
Study of Acceptance Load Testing of Main Bridge of Wuhan Tianxingzhou Changjiang River Rail-cum-Road Bridge |
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| WU Yong.Study of Acceptance Load Testing of Main Bridge of Wuhan Tianxingzhou Changjiang River Rail-cum-Road Bridge[J].Bridge Construction,2010(1). |
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| Authors: | WU Yong |
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| Institution: | WU+Yong(Chengdu+Railway+Administration,Chengdu+610081,China) |
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| Abstract: | The main bridge of Wuhan Tianxingzhou Changjiang River Rail-cum-Road Bridge is a double pylon and triple cable plane steel truss girder cable-stayed bridge with span arrangement(98+196+504+196+98) m and with a six-lane roadway arranged on the upper deck and a four-track railway arranged on the lower deck of the bridge.The bridge is currently a rail-cum-road steel truss girder cable-stayed bridge having the longest main span and the heaviest designed load in the world.The acceptance load testing of the bridg... |
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| Keywords: | Tainxingzhou Bridge rail-cum-road bridge load test static load test dynamic load test evaluation criterion |
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