高墩大跨径预应力混凝土连续刚构空间仿真方法研究  

Research on Space Simulation Methods for High-pier Large-span Pre-stressed Concrete and Consecutive Steel Structures

作　　者：袁卓亚[1] 马毓泉[2] 冯威[1] 

机构地区：[1]长安大学公路学院,西安710064 [2]西安公路研究所,西安710054

出　　处：《公路交通技术》2007年第6期34-37,47,共5页Technology of Highway and Transport

摘　　要：在我国尤其是西部地区,高墩大跨桥梁建设数量越来越多,其施工安全、承载能力等问题已经引起了广大桥梁工作者的重视。以陕西省禹阎高速公路徐水河特大桥为例,提出建立包括分阶段施工混凝土箱梁、薄壁空心墩、主梁预应力钢束及高墩普通钢筋的空间有限元模型,并实现施工、运营全过程空间仿真分析的思路和方法,为此类桥梁的进一步深入研究提供参考。Along with the fact that more and more high - pier large - span bridges have been constructed in China, especially in western regions of China, the issues relevant to construction safety, load capacity, etc. have attracted duly attention of many bridge workers. Taking Xushuihe Super Bridge of Yumenkou - Yanliang Expressway in Shanxi Province as an example, the limited space element models including phase construction concrete box beams, thin - wall hollow piers, pre - stressed main beam steel clusters, high piers, and common steel bars, etc, are proposed to be established in this paper. Thoughts and methods are developed for analysis of the space simulation during full - course construction and operation, and references are given for further research on this kind of bridges.

关 键 词：高墩大跨径 预应力混凝土连续刚构 空间仿真 双重非线性 承载力 

分 类 号：U448.23[建筑科学—桥梁与隧道工程]