140 t cable crane design of small river super large Bridge over Hu-Rong national road

The construction of a reinforced concrete deck box arch bridge was carried out by segment precasting,cable crane installation and cantilever erection by the aid of stayed cables with the cables fixed by the anchors embedded in rocks.

This paper presents the design of twinspan(2×653 m) 70t cable cranes by way of computation models established with ALGOR finite element software.

Application of cable erection and strayed knotting method to construction of concrete filled steel tubular arch bridge;

Through the construction of box arch in Wuyang river grand bridge,the author mainly introduces the construction technology and construction method of large-span arch bridge erection with cableway,carries out checking computations on overall arrangement of cable erection system and cable system,and draws a conclusion that the erection technology has well economic and social benefits.

This paper mainly introduces the cable erection construction experience and the key control points of main span arch boxes of Wentanghe Extra Large Bridge on Chongqing-Linshui Expressway.