预应力混凝土连续梁桥悬臂施工过程空间分析  

Spatial Analysis for Cantilever Construction of Prestressed Concrete Continuous Box-girder Bridge

作　　者：董继恩[1] 刘东升[1] 

机构地区：[1]中交第二公路勘察设计研究院,武汉430052

出　　处：《交通科技》2010年第4期16-18,共3页Transportation Science & Technology

摘　　要：结合混凝土连续梁桥设计和有限元理论,运用有限元分析程序ANSYS,对一座典型的3跨变截面预应力混凝土连续箱梁桥施工过程进行空间受力分析,讨论了悬臂施工各阶段预应力效应和温度变化对空间应力分布的影响。In this paper,the construction process of prestressed concrete continuous box-girder bridge with varying depth is simulated by FEM.The influence of dead load and temperature change on the displacement and stress of the bridge is explored and some meaningful conclusions are drawn for the construction control of continuous box-girder bridge.

关 键 词：预应力混凝土 连续箱梁桥 空间分析 

分 类 号：U[交通运输工程]