Global stability analysis of an asymmetrical long-span concrete-filled steel tube arch bridge

机译：大跨度非对称钢管混凝土拱桥的整体稳定性分析

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A proposed asymmetrical deck-type concrete-filled steel tube (CFST) arch bridge with a span of 380 m was analyzed for its global stability in both the construction and service stages by using Midas/Civil 7.0. In order to evaluate the influence of the general arrangement of the proposed bridge on its stability, the buckling modes and factors of the proposed bridge and another two bridges were compared. The two bridges are the same as the proposed bridge except that they are symmetrically arranged and have the spans of 404m and 358m, respectively. The results of the global stability analysis demonstrate that the bridge has adequate safety against collapse not only in the construction stage but also in the service stage. However, the asymmetrical arrangement of the proposed bridge reduces its stability. The load carrying capacity is lower than that of symmetrically arranged bridges even with a longer span length of 404m.

机译：使用Midas / Civil 7.0，分析了拟建的跨距380 m的非对称桥面式钢管混凝土拱桥的整体稳定性。为了评估拟议桥梁的总体布置对其稳定性的影响，比较了拟议桥梁和另外两座桥梁的屈曲模式和屈曲因素。除了对称布置并且跨度分别为404m和358m之外，这两个桥与建议的桥相同。整体稳定性分析的结果表明，该桥梁不仅在施工阶段而且在使用阶段都具有足够的防塌安全性。然而，所提出的桥的不对称布置降低了其稳定性。即使跨度较长，甚至达到404m，其承载能力也低于对称布置的桥梁。

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《Proceedings of the 6th international conference on arch bridges.》|2010年|p.716-722|共7页
会议地点 Fuzhou(CN);Fuzhou(CN)
作者
Shengyong Li; Christian Kohlmeyer; Frank Mtiller; Baochun Chen;
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作者单位

College of Civil Engineering, Fuzhou University, Fuzhou, China;

Technische Universitat Kaiserslautern, Institute of Concrete Structures and Structural Engineering,Kaiserslautern, Germany;

Technische Universitat Kaiserslautern, Institute of Concrete Structures and Structural Engineering,Kaiserslautern, Germany;

College of Civil Engineering, Fuzhou University, Fuzhou, China;

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原文格式 PDF
正文语种 eng
中图分类拱式桥;拱式桥;
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Global stability analysis of an asymmetrical long-span concrete-filled steel tube arch bridge

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