Implementation method for linear adjustment and cable force adjustment of overall bridge floor of suspension bridge

Abstract

The invention discloses an implementation method for linear adjustment and cable force adjustment of an overall bridge floor of a suspension bridge. The implementation steps are as follows: 1, performing field measurement identification; 2, establishing a finite element analysis model; 3, analyzing the structural sensitivity; step 4, establishing a relation matrix; 5, determining a basic adjustment target; step 6, formulating a scheme; step 7, formulating a solution; step 8, performing effect simulation verification; step 9, performing on-site implementation; and step 10, performing result verification. The invention mainly solves the problems that the bridge floor line shape adjustment and the sling force adjustment planning of the suspension bridge are coordinated and synchronously carried out, a to-be-achieved multi-target plan is planned, the bridge floor line shape and the sling force are simultaneously adjusted in place at a time, and the conditions that on-site repeated trial adjustment is conducted, the adjustment result is not ideal, and the line shape and the sling force cannot be considered at the same time are improved.

Description

technical field [0001] The invention relates to the technical field related to the implementation of suspension bridges, and specifically relates to a method for realizing alignment adjustment and cable force adjustment of the overall deck of a suspension bridge. Background technique [0002] In order to meet the complex terrain and large transportation needs in the western mountainous areas, China built some small-span suspension bridges in the western mountainous areas in the early stage. Affected by a series of factors such as construction conditions at that time, later management and maintenance, operating environment, and overloading, these bridges appeared one after another. The deflection of the bridge deck line and the uneven distribution of cable force, in order to prevent this disease from continuing to develop and affect the traffic of vehicles, the local management department has taken corresponding measures to rectify the bridge with this problem. This patent is ...

AI Technical Summary

Problems solved by technology

The present invention mainly solves the problems of coordination and synchronous planning of the alignment adjustment of the suspension bridge deck and the adjustment of the sling force, plans the multi-objective plan to be achieved, adjusts the line shape of the bridge deck and the sling force in place at one time, and improves the multiple trial adjustments and adjustments on site. The adjustment result is not ideal, and the adjustment cannot take into account the situation of line shape and cable force, etc.

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