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| 连续刚构桥合拢温度的合理确定及高温合拢对策 | |
| 引用本文： | 周光伟,陈得良,刘榕.连续刚构桥合拢温度的合理确定及高温合拢对策[J].长沙交通学院学报,2006,22(3):15-19. |
| 作者姓名： | 周光伟 陈得良 刘榕 |
| 作者单位： | 1. 同济大学土木工程学院,上海,200092 2. 长沙理工大学,桥梁与结构工程学院,湖南,长沙,410076 3. 湖南省交通勘察规划设计院,桥梁勘察设计处,湖南,长沙,410011 |
| 摘 要： | 以一座大跨预应力混凝土连续刚构桥为工程背景,分析了不同的合拢温度对桥梁结构内力的影响,并指出合拢温度对于连续刚构桥设计的影响主要是对桥墩与桩等有关控制截面最不利组合内力的影响,在一般情况下选择低温合拢对结构受力是有利的;结合该桥高温合拢的实际情况,提出了连续刚构桥在高温合拢情况下采取预施加反顶力的施工对策,并通过结构分析与工程实践证明了采用该措施的有效性。 |
| 关 键 词： | 连续刚构桥 温度效应 高温合拢 |
| 文章编号： | 1000-9779(2006)03-0015-05 |
| 收稿时间： | 03 27 2006 12:00AM |
| 修稿时间： | 2006年3月27日 |
Study on Rational of Determination Joining Temperature of PC Continuous Rigid Frame Bridge and Their Resolutions |
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| ZHOU Guang-wei,CHEN De-liang,LIU Rong.Study on Rational of Determination Joining Temperature of PC Continuous Rigid Frame Bridge and Their Resolutions[J].Journal of Changsha Communications University,2006,22(3):15-19. | |
| Authors: | ZHOU Guang-wei CHEN De-liang LIU Rong |
| Institution: | 1. College of Civil Engineering, Tongji University, Shanghai 200092, China; 2. College of Bridge and Structure, Changsha University of Science and Technology,Changsha 410076, China; 3. Department of Bridge Survey and Design, Hunan Provincial Communications Planning Survey and Design Institute, Changsha 410011, China |
| Abstract: | Based on a long-span PC continuous rigid frame bridge across Xiangjiang River during its construction,the internal forces in the structure of this type bridge caused by different joining temperature were analyzed,It is concluded that the internal forces caused by different joining temperature have important effects on the controlling sections of the bridge piers and piles,and a lower joining temperature is significant in bridge design.When Baishui Bridge is closed at high temperature,a reasonable measurement applied to jacking counterforce has been put forward to ensure the bridge closed successfully in the higher air temperature. |
| Keywords: | PC continuous rigid frame bridge temperature effects high temperature closure |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |