The Integer Design and Innovation Technology of Maocaojie Bridge

摘要

Each main arch rib of the main span includes 23 segments, 11 on each side and 1 closure segment in the middle. The maximum one weighs 65t. It is adopted non-support cable erection stay buckling method for construction. The main span of the cable crane is 368 m and the height of tower is 125m with the design lifting capacity of 75 t. It is adopted φ 15.24mm steel strand for the buckling rope. And there are 11 bonds of buckling rope at upstream and downstream of each buckling tower respectively, among which, 5 bonds of temporary buckling rope and 6 bonds of permanent buckling rope. It is the first time in China that so many segments to be erected in low-laying land in lake area by high-tower and with non-support cableway and to be spliced in the air one by one.