自锚式钢箱梁悬索桥锚箱空间应力分析

Analysis of spatial stress in anchorage box in self-anchored steel box girder suspension bridge

三汊矶大桥首次采用横竖板结合型锚箱，构造新颖独特。采用空间有限元方法分析了锚箱的应力分布状况，并对腹板的局部稳定做了检算，对锚箱的优化提出了建议。

Anchorage box composed of vertical and tranversed panel is firstly adopted by San Chaji Bridge, such construction is unique. The stress in the anchorage box is analysed with a spatial finite element method, the local stability of the web in the anchorage box is also confirmed through checking calculation and the proposals for optimizing the anchorage box are finally made.