南京五桥索塔钢壳吊装运输及抛锚定位研究

The hoisting transportation and anchoring positioning research of steel shell with Nanjing No.5 Yangtze river bridge

南京五桥创新性采用纵向钻石型钢—混组合塔,标准节段高度4.8 m,最大节段纵桥向宽14.5 m,横桥向宽约13.8 m。针对大节段钢壳体积大、重量重、变形要求小的特点,对全过程的吊装运输方式和受力变形计算以及现场抛锚定位等进行分析研究,为同类型的施工作业提供重要借鉴。

The Nanjing No.5 Yangtze river bridge is innovatively using the longitudinal diamond type steel-concrete composite tower,and the height of standard section is 4.8 m,and the longitudinal width of the largest section is 14.5m,and the transverse width is about 13.8 m.In view of the characteristics of large section steel shell,such as large volume,heavy weight and small deformation requirements,the whole process of hoisting transportation mode,stress deformation calculation and site anchoring positioning are analyzed,which provides important reference for the same type of construction.