| 单肢薄壁高墩连续刚构施工稳定性分析 |
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| 引用本文： | 金鹏,王金磊.单肢薄壁高墩连续刚构施工稳定性分析[J].交通科技与经济,2013,15(3):64-66,70. |
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| 作者姓名： | 金鹏 王金磊 |
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| 作者单位： | 1. 重庆交通大学土木建筑学院,重庆,400074
2. 重庆万桥交通科技发展有限公司,重庆,400067 |
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| 摘 要： | 近年来，单肢薄壁连续刚构桥施工失稳破坏频繁发生，损失严重。以西南某桥为背景，先对每个施工阶段进行线性分析，找出各阶段最不利荷载组合，然后分析出最大悬臂阶段各荷载工况、高墩初始缺陷、是否考虑几何非线性等因素对稳定性的影响程度。最后，提出处理建议和措施。
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| 关 键 词： | 稳定性分析 单肢薄壁 高墩初始缺陷 荷载位移曲线 特征值 |
The construction stability analysis of single-limb thin-walled high-pier continuous rigid frame bridge |
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| JIN Peng
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WANG Jin-lei.The construction stability analysis of single-limb thin-walled high-pier continuous rigid frame bridge[J].Technology & Economy in Areas of Communications,2013,15(3):64-66,70. |
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| Authors: | JIN Peng WANG Jin-lei |
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| Institution: | 1. School of Civil Architecture, Chongqing Jiaotong University, Chongqing 400074, China; 2. Chongqing Wanqiao Communication-tech co. , ltd, Chongqing 400067, China) |
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| Abstract: | In recent years, the construction instability and failure of singleqimb thin-walled continuous rigid frame bridge have taken place frequently resulting in serious losses. Based on an example of caluculation of some bridge in southwest of China. Firstly the linear analysis is made in each stage of construction to find out the most unfavorable load combination~ then the influece levels are checked on the constuetion stability from the load cases, high-pier initial defects, geometric nonlinear fact-fors in the maximum cantilever stage; finally a summary of the above analysis is obtained, complete with some recommendations and measures.： |
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| Keywords: | stability analysis Single-lAmb Thin-walled high-pier initial defects load-displacement curve eigenvalue |
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