沈阳市富民桥主梁局部应力的有限元分析  

Finite Element Analysis of Local Stress in Main Girder of Fumin Bridge in Shenyang

作　　者：李洋[1] 关典[2] 王福春[1] 宋建嫱[1] 

机构地区：[1]沈阳市市政工程设计研究院,辽宁沈阳110015 [2]沈阳市基本建设工程预决算审核中心,辽宁沈阳110003

出　　处：《桥梁建设》2004年第B05期14-16,共3页Bridge Construction

摘　　要：沈阳市富民桥为(89+242+89)m的折线形双塔单索面预应力混凝土斜拉桥。主梁为近似倒三角形断面,单箱三室。简要叙述富民桥施工过程中主梁重点节段的局部应力分析过程,通过空间有限元计算结果初步总结主梁纵向内力在梁体内的分布特点,并对斜拉索锚下的混凝土进行局部承压应力分析。The main bridge of Fumin Bridge in Shenyang is a prestressed concrete cablestayed bridge with span arrangement （89 ＋242 ＋89） m, and with double kinked pylons and single cable plane. The main girder of the Bridge is designed as an approximate inverted triangular section of triple cells and single box. This paper briefs the local stress analysis process of the important segments of the main girder being constructed, summarizes the distribution features of the longitudinal int,ernal forces in the main girder according to the finite element calculations, and also analyzes the local compressive stress of concrete under the stay cable anchorages.

关 键 词：斜拉桥 主梁 箱形梁 预应力混凝土结构 内力 应力分析 有限元法 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]