| 大跨径多孔拱桥设计关键技术 |
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| 引用本文： | 周青;,戴捷;,倪宝伟;.大跨径多孔拱桥设计关键技术[J].现代交通技术,2012,9(5):26-29. |
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| 作者姓名： | 周青; 戴捷; 倪宝伟; |
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| 作者单位： | 江苏省交通规划设计院股份有限公司,江苏南京,210005 |
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| 摘 要： | 通过乐山岷江二桥设计,全面阐述了大跨径多孔拱桥的设计过程及计算分析方法。在拱桥计算分析时,详细考虑了桩土共同作用、连拱效应、混凝土收缩徐变等因素对拱桥受力性能的影响,并重点分析了某一拱跨破坏时,单向推力墩的极限承载能力,以确保拱桥不发生整体垮塌。
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| 关 键 词： | 桥梁工程 桩土共同作用 连拱效应 混凝土收缩徐变 单向推力墩 |
Key Technologies for the Design of Large Span Bridge with Multi-Arch |
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| Zhou Qing,Dai Jie,Ni Baowei.Key Technologies for the Design of Large Span Bridge with Multi-Arch[J].Modern Transportation Technology,2012,9(5):26-29. |
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| Authors: | Zhou Qing Dai Jie Ni Baowei |
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| Institution: | (Jiangsu Provincial Communication Planning and Desion Institnte Co. ,Ltd.,Nanjing 210005 ,China) |
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| Abstract: | In this paper,design process,calculation and analysis methods of multi-arch bridge are comprehensively expounded based on the design of the Second Leshan Minjiang bridge. Effects of the interaction between pile and soil, the multi-arch effect, concrete shrinkage and creep on the performance of the arch bridge are considered in detail when the arch bridge is calculated and analyzed. The ultimate bearing capacity of single direction thrusted pier is analyzed emphatically when one arch is damaged to ensure that the arch bridge will not completely collapse. |
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| Keywords: | bridge engineering interaction between pile and soil multi-arch effect concrete shrinkage and creep single direction thrusted pier |
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