| 钢管混凝土拱肋有限元模拟的影响因素分析研究 |
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| 引用本文： | 王继祥.钢管混凝土拱肋有限元模拟的影响因素分析研究[J].城市道桥与防洪,2020(5):236-238,M0024. |
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| 作者姓名： | 王继祥 |
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| 作者单位： | 1.上海市政工程设计研究总院集团浙江市政设计院有限公司 |
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| 摘 要： | 对某500 m级钢管混凝土拱桥的拱肋两种模拟方法进行了详细的研究,借助Midas/Civil软件,采用联合截面和双单元法分别建立全桥空间有限元模型,对比分析了两种方法对各主要施工阶段关键截面的钢管应力、核心混凝土应力及位移的异同。并对拱肋模拟的影响因素进行了分析,可为相关大跨径混凝土拱桥提供参考。
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| 关 键 词： | 钢管混凝土拱肋 联合截面 双单元 影响因素 |
Analysis and Study on Influence Factors of Finite Element Simulation of Concrete Filled Steel Tube Arch Rib |
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| WANG Jixiang.Analysis and Study on Influence Factors of Finite Element Simulation of Concrete Filled Steel Tube Arch Rib[J].Urban Roads Bridges & Flood Control,2020(5):236-238,M0024. |
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| Authors: | WANG Jixiang |
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| Abstract: | Two simulation methods of arch ribs of a 500-meter-class concrete filled steel tube(CFST)arch bridge are studied in detail.The joint cross section and the two-unit method are used to establish the full-bridge spatial finite element model by means of Midas/Civil software.The similarities and differences among the steel pipe stress,the core concrete stress and the displacement of the key sections in the main construction stages by two methods are compared and analyzed.And the influence factors of arch rib simulation are analyzed,which can provide a reference for the relevant long-span concrete arch bridges. |
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| Keywords: | concrete filled steel tube arch rib joint cross section double-unit influence factors |
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