详细阐述了椒江二桥防撞钢套箱的设计思路,采用Midas空间有限元软件对钢套箱底篮、内支撑、吊装系统等按不同的工况进行了详细的计算;并对钢套箱安装方案和关键控制点加以详细说明,通过反复精确测量开孔、设置封堵板、设置限位装置等多项措施,确保了套箱在短时间内精确安装到位。 The design idea of ​​the anti-collision steel sleeve box of Jiaojiang No.2 Bridge was expounded in detail. Midas space finite element software was used to calculate steel box bottom basket, internal support and lifting system according to different working conditions. Programs and key control points to be described in detail, through the repeated accurate measurement of openings, set the blocking plate, set the limit device and many other measures to ensure that the box in a short period of time accurately installed in place.