2012, Volume 14, Issue 5
Strategic Study of CAE >> 2012, Volume 14, Issue 5
Approximate calculation method of main cables PPWS construction traction force for extralarge span suspension bridgeWang
1. Jiangsu Provincial Yangtze River Highway Bridge Construction Commanding Department, Taizhou, Jiangsu 225321, China;
2. CCC-SHB Second Engineering Co. Ltd., Xi'an 710119, China
Next Previous
Abstract
For the large number of wire strands and the long distance of strand traction, the wire strands are erected normally with gantry pulling traction system that allows continuous pylon passing in the construction of main cables with PPWS(prefabricated parrel wire strand) method for an extra-large span suspension bridge. The accurate calculation of traction force is of realistic significance to the selection of traction equipment and ensuring smooth construction. In early days of suspension bridge construction, the capacity demand and type of traction equipment were determined mainly based on experience. In this article, exploration was made for the traction force calculation method of the gantry pulling traction system for PPWS construction, and the results were compared with measured data on work site. It proves that the calculation result is reliable and can be used in construction calculation.
Keywords
suspension bridge ; main cable ; PPWS ; wire strand ; traction force
Figures
图1
图2
图3
图4
图5
图6
京公网安备 11010502051620号
