Lapping repair method of main cable wire of suspension bridge and lapping component of method

Abstract

The invention discloses a lapping repair method of a main cable wire of a suspension bridge. The method comprises the steps as follows: 1), a dynamometer is used for measuring wire tension of the main cable wire before repair; 2), a corroded section of the main cable wire is cut, so that two opening ends are formed; 3), one end of the new wire is in meshing connection with one of the opening ends through a first connecting piece, the other end of the new wire is in meshing connection with a second connecting piece, and the other opening end is in meshing connection with a third connecting piece; 4), a fourth connecting piece with internal threads in two ends is in threaded connection with the second connecting piece and the third connecting piece respectively, wherein the internal threads in two ends of the fourth connecting piece rotate reversely; and 5), the fourth connecting piece is rotated, so that the fourth connecting piece draws or loosens the second connecting piece and the third connecting piece respectively, and lapping repair of the main cable wire is realized. The invention further discloses a lapping component adopting the method. According to the lapping repair method and the lapping component, the corroded main cable wire can be repaired conveniently and rapidly, and the tension of the main cable wire can be adjusted easily.

Description

[0001] technical field [0002] The invention relates to a maintenance technology of a suspension bridge, in particular to a method for repairing a main cable steel wire bridge of a suspension bridge, and also relates to a bridge component adopting the method. Background technique [0003] The main cable of the suspension bridge is the main load-bearing part of the suspension bridge. The steel wire of the main cable is generally made of low-carbon galvanized steel. After long-term use, the corrosion of the steel wire of the main cable will affect the durability of the main cable. The main cause of steel wire corrosion is that there are many gaps in the main cable, and the steel wires are directly corroded after moisture is accumulated in the gaps. At present, there are anti-corrosion main cables, which can play a certain anti-corrosion effect on steel wires. However, for the suspension bridge built earlier, after long-term use, the steel wire of the main cable has been seri...

AI Technical Summary

Problems solved by technology

However, for the suspension bridge built earlier, after long-term use, the steel wire of the main cable has been seriously corroded. In this case, the general maintenance method is to replace the entire steel wire of the main cable, which consumes a lot of money and costs. Moreover, the length of the steel wire needs to be strictly selected , and then check the pulling force to achieve sufficient steel wire pulling force. The steel wire is easy to rotate by itself when replacing, and it is difficult to be fixed, which makes it difficult to replace the main cable steel wire

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