| 瓯江大桥钢混结合段局部受力分析 |
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| 引用本文： | 程龙,胡剑.瓯江大桥钢混结合段局部受力分析[J].交通科技,2011(5). |
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| 作者姓名： | 程龙 胡剑 |
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| 作者单位： | 中国公路工程咨询集团有限公司; |
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| 摘 要： | 运用大型有限元软件ANSYS对瓯江大桥主桥钢混结合段在运营过程中最不利荷载工况下的应力状态进行了分析。分析结果表明,除钢箱梁锚垫板下预应力管道支承钢板以及与混凝土箱梁结合面折角处存在应力集中现象、部分拉应力超出混凝土的抗拉强度外,结构总体受力合理,内部应力满足设计要求。针对钢混结合段的构造与受力复杂情况,对此部分的混凝土箱梁采用钢纤维混凝土作为加强措施。
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| 关 键 词： | 连续刚构桥 钢混结合段 传力机理 应力分布 |
Analysis of Local Stress of Steel-concrete Beam Linked Part of Oujiang River Bridge |
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| Cheng Long,Hu Jian.Analysis of Local Stress of Steel-concrete Beam Linked Part of Oujiang River Bridge[J].Transportation Science & Technology,2011(5). |
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| Authors: | Cheng Long Hu Jian |
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| Institution: | Cheng Long,Hu Jian(China Highway Engineering Consulting Group Company Ltd.,Beijing 100097,China) |
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| Abstract: | The paper analyzed the stress state of steel-concrete beam linked part of Oujiang River Bridge of the most disadvantage in the operation process.The results showed that the stress of general structure is reasonable,meanwhile the internal stress meets the design requirements,except for the phenomenon that stress concentration and some tensile stress exceeds the tensile strength of concrete.In consideration of the complicated structure of steel and concrete composite,the concrete box girder is adopted steel f... |
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| Keywords: | continuous rigid frame steel-concrete beam linked part stress transfer mechanism stress distribution |
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