A method for quickly replacing rubber waterproof belts of bridge expansion joints

Abstract

The invention belongs to the technical field of bridge expansion joints, and particularly relates to a method for quickly changing a rubber waterproof tape of a bridge expansion joint. The method comprises the steps that firstly, drawing mechanisms are symmetrically arranged at the two ends of the bridge expansion joint, digging ropes of the drawing mechanisms are connected with the front end and the rear end of a removal and installation mechanical arm respectively, the digging ropes are located at the horizontal axis of the expansion joint, and the left end and the right end of the removal and installation mechanical arm are arranged in grooves of beam body profiled bars and can slide back and forth along the expansion joint; secondly, the to-be-removed rubber waterproof tape and the removal and installation mechanical arm are fixed at the first drawing mechanism, and the second drawing mechanism is started to draw the removal and installation mechanical arm to strip the to-be-removed rubber waterproof tape away; thirdly, a to-be-installed rubber waterproof tape and the removal and installation mechanical arm are fixed at the second drawing mechanism, and the first drawing mechanism is started to draw the removal and installation mechanical arm to lay the to-be-installed rubber waterproof tape into the grooves of the beam body profiled bars; fourthly, the removal and installation mechanical arm is taken back, the drawing mechanisms are removed, and the work face of the bridge expansion joint is cleaned. The method has the advantages of being high in changing efficiency and good in installation quality.

Description

technical field [0001] The invention belongs to the technical field of bridge expansion joints, and in particular relates to a quick replacement method for rubber waterproof belts of bridge expansion joints. Background technique [0002] Expansion joints are important components of bridges, and their waterproof performance directly affects the service life of the lower components of the bridge. After a certain period of use, the waterproof rubber belts of expansion joints of railway bridges will inevitably appear aging, falling off, cracking and disconnection. , causing water leakage to corrode the substructure of the bridge. [0003] On the basis of improving the design requirements, production standards, and installation quality of expansion joints, regular inspections and daily maintenance must be strengthened, and the damaged waterproof rubber belts of expansion joints should be promptly repaired and replaced. However, after the railway bridge is completed and put into u...

AI Technical Summary

Problems solved by technology

[0002] Expansion joints are important components of bridges, and their waterproof performance directly affects the service life of the lower components of the bridge. After a certain period of use, the waterproof rubber belts of expansion joints of railway bridges will inevitably appear aging, falling off, cracking and disconnection. , causing water leakage to corrode the substructure of the bridge

[0003] On the basis of improving the design requirements, production standards, and installation quality of expansion joints, regular inspections and daily maintenance must be strengthened, and the damaged waterproof rubber belts of expansion joints should be promptly repaired and replaced. However, after the railway bridge is completed and put into use, other Most of the expansion joints are covered by the track slabs, ballast and cover plates laid above. When the waterproof rubber belt needs to be repaired and replaced, the operating space is very narrow, and the traditional wrench prying method needs to stop using the bridge for a long time , which affects the economic utility, and the construction volume of maintenance and replacement is large, laborious and laborious, and the capital investment is large

[0004] The utility model patent with the notification number CN203834350U discloses a waterproof rubber strip replacement device for railway bridge expansion joints, which includes a clamping and fixing frame arranged at one end of the waterproof rubber strip, and the clamping and fixing frame is provided with a movable plate and fixing bolts, and clamps The fixed frame is connected with the traction and winding device through a wire rope. During use, the device is aimed at the integrated waterproof rubber strip, and requires a gap between the flange (that is, the fixed part) of the waterproof rubber strip and the groove of the special-shaped steel. There is a certain gap, but it is not suitable for the situation where the waterproof rubber belt and the groove of the profiled material need to be closely fitted, and it cannot be replaced quickly

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