Patent ID: 6728987
Filing Date: 2004-05-04
Classification: E01D

Abstract:
A method of modifying a vertical profile of a cable supported bridge having one or more towers supporting a plurality of cables attached to a bridge superstructure, each of the plurality of cables having a lower attachment point, an upper attachment point, and a distance between the lower attachment point and the upper attachment point, the method comprising:a. sequentially adjusting, by applying a force, a position of the lower attachment point of each cable in a series of the plurality of cables by a specified linear distance per cable, such that the position of the lower attachment point is modified relative to the bridge superstructure; and b. sequentially adjusting an attachment structure associated with the lower attachment point of each adjusted cable to maintain, when the force is removed, the linear distance the position of the lower attachment point of the cable has been modified relative to the bridge superstructure, whereby the distance between the upper attachment point and the lower attachment point remains substantially unchanged when the force is removed from each cable in the series of the plurality of cables.