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悬索桥施工过程主塔受力及定位研究

Transportation Science & Technology(2019)

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Abstract
以襄阳庞公大桥为工程背景,运用有限元软件midas Civil建立结构模型,对影响悬索桥主塔定位及受力的因素进行分析.研究结果表明,索鞍门架吊装对主塔的受力偏移影响有限;风荷载是影响桥塔受力变形的主要因素,应避免在大风环境下施工;桥塔应设置一定的预抬高量来抵消恒载、徐变作用下的桥塔压缩变形;温度变化会对桥塔受力、变形产生影响.
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