Reinforcing treatment method for steel structure bridge

Abstract

The invention relates to a reinforcing treatment method for a steel structure bridge. A steel structure bridge reinforcing treatment device is used in the method. The steel structure bridge reinforcing treatment device comprises a main body mechanism and a fixing mechanism, wherein the lower end of the main body mechanism is connected with existing working ground in a sliding fit manner; and the fixing mechanism is mounted at the lower end of the body mechanism. According to the invention, the design concept of multiple controllable clamping and fixing structures is adopted to reinforce the steel structure bridge; a triangle-like structure adopted by the device can play a role in increasing the stability degree of the right-angle connecting position of a steel frame by utilizing the principle of triangle supporting, so the probability of relative deviation of the steel frame in the welding process is reduced, and fixed-point welding quality is improved; and meanwhile, the overall height of the device can be adaptively and accurately changed according to clamping and fixing requirements.

Description

technical field [0001] The invention relates to the technical field of bridge erection, in particular to a steel structure bridge reinforcement treatment method. Background technique [0002] Steel bridge, the bridge whose main load-bearing structure adopts steel, that is, steel structure bridge, steel bridge, and the leg or pier (platform) body form a rigid connection, and the structural form can be divided into portal rigid frame bridge, oblique leg rigid frame bridge, T Formal rigid frame bridge and continuous rigid frame bridge, bridge reinforcement generally refers to restoring or improving the bearing capacity of the existing bridge through the reinforcement of components and the improvement of structural performance, so as to prolong its service life and adapt to the requirements of modern transportation, etc. On the one hand, steel structure bridges have outstanding structural stability and rigidity conditions, and play an important role in the construction of transp...

AI Technical Summary

Problems solved by technology

[0003] 1. During the butt welding process between steel frames, manual support or a single clamping structure is often used to achieve the relative fixation of the butt joint, but the effect of the relative fixation is low, and the relative deviation between the steel frames is easy to occur. Moreover, the compactness of the connection parts of the steel frame is low, so that the overall welding effect is not ideal and affects the performance of the bridge;

[0004] 2. During the butt joint process of steel frames connected at right angles, the vertical steel frame as a whole tends to be in a state of being heavy at the top and light at the bottom due to the clamping of a single part, and the state of being heavy at the top and light at the bottom makes the vertical steel frame During the welding process, it is easy to be deflected due to external forces. At the same time, common processing devices have the phenomenon that the overall height is not variable or the height is variable but cannot be precisely controlled.

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