摘要
采用空间有限元方法，分析了腹板呈空间受力、锚固构造独特的杨浦大桥索梁锚固区应力状况，计算结果与三维光弹试验结果吻合。对锚固区腹板的局部稳定作了检算。
In the Yangpu cable-stayed bridge,the inverted 'Y' shape was used. In order to analyse the stress distribution of the cable-girder anchorage joint,the spatial finite element methods were used.The results of the stress distribution and deformation of the web plate were offered.It's coincided with the photic-elastic model test datas.The buckling of the web plate with horizontal stiffened bar was also studied.Some suggestions to improve the structure of this joint were also offered.
关键词
斜拉桥
结构分析
锚固
可靠性
索梁
应力分析
cable stayed bridges,structural analysis,anchoring reliability
