| 既有多跨公路桥梁整体顶升主梁安全性分析 |
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| 引用本文： | 辛国平,李建慧,陈建国.既有多跨公路桥梁整体顶升主梁安全性分析[J].公路交通技术,2013(4):85-89,92. |
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| 作者姓名： | 辛国平 李建慧 陈建国 |
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| 作者单位： | [1]中铁隧道集团一处有限公司,重庆401121 [2]南京国博土木工程技术有限公司,南京210013 |
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| 基金项目： | 中铁隧道集团有限公司科技创新项目（隧研合2010-07） |
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| 摘 要： | 顶升技术是桥梁技术改造的重要方法。多跨桥梁整体顶升过程中主梁安全性是关键。结合工程实例,建立数值分析模型,分析不同工况条件下的主梁变形和截面应力,为确定安全的施工方案提供依据。
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| 关 键 词： | 桥梁 整体顶升 MIDAS 稳定性 |
Analysis for Safety of Girder during Integral Jacking of Existing Multi-span Highway Bridge |
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| XIN Guoping,LI Jianhui,CHEN Jianguo.Analysis for Safety of Girder during Integral Jacking of Existing Multi-span Highway Bridge[J].Technology of Highway and Transport,2013(4):85-89,92. |
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| Authors: | XIN Guoping LI Jianhui CHEN Jianguo |
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| Abstract: | Lifting technology is an key measure in bridge technical renovation.the main beam safety is critical in integral lifting of multi-span bridges.The author set up numeric analytical model with help of engineering examples to analyze main beam distortion and sectional stress under different working conditions,so to provide basis for safe construction solutions. |
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| Keywords: | Bridge Integral lifting MIDAS stability |
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