摘要
应用有限元分析程序ANSYS,对某大跨度三塔斜拉桥双边箱形主梁节段建立了有限元模型,综合分析了箱形主梁在自重、索力和预应力作用下成桥阶段的空间应力效应,进而总结出此类预应力混凝土双边箱倒梯形截面的应力分布特点;同时分析了在不同工况下的锚固区空间应力分布的基本情况,研究结果可供同类斜拉桥索梁锚固区的设计和施工参考。
By using the structural analysis software ANSYS,the finite element model was established based on long-span cable-stayed bridges box girders.Moreover,the weight,cable force and pre-stressed force were considered.Based on the above,the three-dimensional stresses of the box girder with different situations were analyzed and got the stress distributions properties of this kind of sections.While this paper summarizes stress distribution conditions of the cable-to-girder anchor zone and the research results give suggestions for the related designs and construction.
出处
《安徽建筑工业学院学报（自然科学版）》
2010年第1期14-16,41,共4页
Journal of Anhui Institute of Architecture(Natural Science)
关键词
斜拉桥
索梁锚固区
有限元法
应力分析
cable-stayed bridge
cable-to-girder anchor zone
finite element method
stress analysis
