Shock absorption and noise reduction integral welding type comb plate expansion joint

Abstract

The invention discloses a shock absorption and noise reduction integral welding type comb plate expansion joint, and belongs to the technical field of bridge expansion joints, the comb plate expansion joint comprises a fixed tooth plate, a movable tooth plate and a bracket; the fixed toothed plate and the movable toothed plate are supported on the bracket, anchoring rings and welding studs are fixed to the fixed toothed plate and the movable toothed plate, the anchoring rings are fixed to the outer side of the fixed toothed plate and the outer side of the movable toothed plate, and the welding studs are fixed to the bottom of the fixed toothed plate and the bottom of the movable toothed plate and located on the two opposite sides of the bracket. The bracket comprises a sliding base plate, a slurry baffle and a waterproof adhesive tape, the fixed toothed plate and the movable toothed plate are supported on the sliding base plate, the slurry baffle comprises a first slurry baffle and a second slurry baffle, the first slurry baffle is fixed on the sliding base plate, a gap is formed between the first slurry baffle and the second slurry baffle, and the waterproof adhesive tape is located at the top in the gap and below the movable toothed plate. The comb plate and the anchoring component are welded into a whole, the hidden danger that a bolt and an anchoring bolt are prone to loosening is eradicated, and the construction efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of bridge expansion joints, in particular to a shock-absorbing and noise-reducing integrally welded comb-tooth plate expansion joint. Background technique [0002] At present, my country's road construction is paying more and more attention to the impact of driving on the surrounding environment of the road. Because of the tooth-like staggered structure on the surface of the comb plate, there is no impact caused by the traditional modular shrinkage groove, and the wheels can continue to roll the road. The feature of making the sound lower when the vehicle is passing has been widely used in urban road construction. The current traditional comb plates in my country are in the JT / T327-2008 standard of the Ministry of Communications and the expansion joints of various comb plates produced by various manufacturers at the present stage are all plate structures of one meter and one piece of plate structure and the u...

AI Technical Summary

Problems solved by technology

[0003] 1. During installation, the tooth plate bracket must be welded first, and then the concrete is poured to level the tooth plate one by one, and the bolts are tightened again after the concrete is initially set, which will lead to low efficiency and long time consumption during installation;

[0004] 2. The existing comb-tooth plate expansion joints have inherently weak earthquake resistance and the difficulty of bolt fastening and anti-loosening. Frequent vibration makes the anchor bolts easy to loosen, resulting in a large amount of damage to the comb plate, which is easy to cause safety accidents, and the maintenance and repair costs are high

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