斜拉桥钢箱梁横隔板受力分析研究

Research on stressed analysis of diaphragm plate of steel box girder at cable-stayed bridge

针对横隔板在轮载作用下的受力特性进行了研究,选取一个节间的钢箱梁节段建立空间模型进行有限元分析,结果表明在设计荷载作用下,横隔板除开孔处会出现应力集中外,其他应力水平均满足规范要求,在钢箱梁设计中应合理开孔并控制开孔尺寸。

The study researches the stress features of the diaphragm plate under the wheel load,undertakes the finite element analysis by selecting one internode steel box girder part to establish the space model,proves by the result that other stresses of the diaphragm plate can meet the demands of the regulation under the design load,except the stress concentration at the hole inner part,and indicates the holing should be reasonable and the hole sizes also should be controlled in the design of the steel box girder.