| 站前大道下承式钢管混凝土系杆拱桥设计 |
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| 作者单位： | ;1.中铁工程设计咨询集团有限公司郑州设计院 |
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| 摘 要： | 郑州市中牟县站前大道桥采用单跨85 m、桥宽44.8 m的下承式钢管混凝土系杆拱,这种结构是一种无推力的梁拱组合体系,在跨线控制工程上较多采用。介绍该桥方案设计、结构有限元计算要点和主要计算成果,并介绍利用Midas有限元模型对吊杆的张拉顺序和拱轴线进行优化的方法。计算分析显示该桥设计合理,各设计值满足规范要求。
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| 关 键 词： | 公路桥 钢管混凝土 系杆拱 结构设计 计算 |
Design of Concrete-filled Steel Tube Tied Arch Bridge for Station Avenue |
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| Institution: | ,Zhengzhou Design Institute,China Railway Engineering Consulting Group Co.,Ltd. |
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| Abstract: | the station avenue bridge located in Zhongmu county of Zhengzhou city is designed with 85 mspan and 44. 8 m-width concrete filled steel tubular tied arch. Such structure is a non-thrust beam-arch combination system,which is widely used in the control project of cross-line engineering. This paper briefly introduces the bridge design,main points of structural finite element calculation and major calculation results,and presents the method of using Midas finite element model to optimize the tension sequence of sling and arch axis. The calculation and analysis show that the design of the bridge is reasonable and the design values meet the requirements of the specification. |
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| Keywords: | Highway bridge Concrete filled steel tube Tied arch Structure design Calculation |
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