某公路大桥钢箱梁裂纹成因分析及处治对策  

Cause Analysis and Treatment Method of Cracks in Steel Box Girder of a Highway Bridge

作　　者：陈子壕 雷建平[1] 

机构地区：[1]武汉理工大学交通学院,武汉430063

出　　处：《交通科技》2017年第5期53-55,共3页Transportation Science & Technology

摘　　要：钢箱梁桥在运营阶段普遍存在开裂病害。结合某公路大桥钢箱梁开裂的实际情况,根据裂纹的位置与发展形态,将裂纹进行统计分类,运用ANSYS建立钢箱梁的有限元模型,计算在车辆荷载作用下的应力分布情况,根据计算结果分析开裂原因,介绍目前钢箱梁裂纹的处治方法,并提出综合治理方案。The steel box girder bridge has the crack disease during the operation process. Combined with the actual crack situation of the steel box girder of a highway bridge,the crack is counted and classified by its location and development pattern. ANSYS software is used to establish the finite element model of steel box girder and calculatethe distribution of stress under vehicle load. According to the calculation results,the causes of crack are analyzed. The treatment method of steel box girder crackis introduced,and the comprehensive treatment schemeis put forward.

关 键 词：钢箱梁 裂纹 成因分析 处治方法 

分 类 号：U445.585[建筑科学—桥梁与隧道工程]