大跨连续刚构桥T构悬臂施工阶段受力分析  

Stress analysis of T structure cantilever construction stage of long span continuous rigid frame bridge

作　　者：关伟[1] 

机构地区：[1]山西省交通科学研究院,山西太原030006

出　　处：《山东交通科技》2017年第1期59-63,共5页

摘　　要：以浮山县丞相河特大桥为背景,该桥为一座预应力混凝土连续刚构桥,主桥跨径为66.5 m+120 m+66.5 m,横断面为单箱双室截面。采用Midas FEA有限元软件对该桥主桥T构进行仿真实体建模,对其悬臂施工阶段进行静力、动力及稳定性分析,得出T构悬臂施工阶段结构的力学特性。This article is based on the background of the Chengxiang River large bridge in Fushan County. The bridge is a prestressed concrete continuous rigid frame bridge. The main span is 66. 5 ＋ 120 ＋ 66. 5m. Its cross section is a single box double room section. The Midas FEA software is used on the simulation modeling of T - frame of the main bridge. The static force, dynamic force and stability in the cantilever construction stage are analyzed, and then the mechanical properties in the T - frame bridge cantilever construction stage is obtained.

关 键 词：桥梁工程 T构 力学特性 应力 振型 模态 

分 类 号：U448.23[建筑科学—桥梁与隧道工程]