中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2013, Vol. 32 ›› Issue (增1): 864-868.DOI: 10.3969/j.issn.1674-0696.2013.sup.1.33

• 桥梁结构分析 • 上一篇    下一篇

曲线连续刚构桥的变形和受力特性分析

王帆,祝兵,窦胜谭,索文嘉,赵宁,黄瑞峰   

  1. 西南交通大学土木工程学院,四川成都610031
  • 收稿日期:2013-02-28 修回日期:2013-04-09 出版日期:2013-06-30 发布日期:2015-03-12
  • 作者简介:王帆(1990—),男,陕西铜川人,硕士研究生,主要从事现代桥式及桥梁结构设计理论研究。E-mail:f_wang1990@163.com.

Deformation and Mechanical Characteristics of Curved Girder Continuous Rigid Frame Bridge

Wang Fan,Zhu Bing,Dou Shengtan,Suo Wenjia,Zhao Ning,Huang Ruifeng   

  1. School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,Sichuan,China
  • Received:2013-02-28 Revised:2013-04-09 Online:2013-06-30 Published:2015-03-12

摘要: 采用有限元软件MIDAS/Civil建立了相同跨度的预应力混凝土变截面单箱单室连续刚构直梁模型和弯梁模 型,分析了在恒载、活载作用下和成桥运营阶段直梁桥和弯梁桥的变形、反力和内力特征;考虑建模方法对最终结果 可能造成的差异,对弯梁模型还采用梁格法进行建模分析,并将所得结果作为重要参考以验证结果的准确性,得到 弯梁桥和直梁桥在受力和变形上的差异,从而更准确的分析弯梁桥的受力。

关键词: 连续刚构桥, 弯梁, 变形, 内力, 有限元分析

Abstract: The prestressed concrete continuous rigid frame straight beam model and the bending beam model were established by the finite element software MIDAS /Civil,with the same span and variable cross-section single cell box. The deformation, the reaction force and stress behaviours were analyzed under the influence of dead load and live load and at the operation stage of bridge. At the same time,the modelling method that may cause differences in the final results was considered, so the grillage method was adopted to do the modelling analysis for the curved girder. The obtained results are regarded as important reference to verify the accuracy of data,which finds out the differences of the curved girder bridge and straight girder bridge in the force and deformation. Therefore,the mechanical characteristics of the curved girder bridge are analyzed more accurately.

Key words: continuous rigid frame bridge, bending beam, deformation, internal forces, finite element analysis

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