Extension gap device capable of reducing impact damage and achieving waterproofing and sound insulation and construction method of extension gap device

Abstract

The invention discloses an extension gap device capable of reducing vehicle impact damage and achieving waterproofing and sound insulation. The extension gap device is composed of a first movable comb plate, a second movable comb plate, an elastic dustproof sound insulating plate, wavy water stop rubber, a metal support plate of the water stop rubber, an anti-impact wedge-shaped block, an edge beam, a connecting steel bar, a positioning steel bar and bolts. According to the extension gap device capable of reducing the vehicle impact damage and achieving waterproofing and the sound insulation, the anti-impact wedge-shaped block is arranged in the direction perpendicular to the axial line of a bridge, which is used for buffering vehicle impact force; the elastic dustproof sound insulating plate is arranged below the two movable comb plates, which can prevent the water stop rubber from being in contact with sundries like glass and stones, the structural characteristic of the device itself also makes the device with sound insulation performance, and a laminating structure composed of the elastic dustproof sound insulating plate and the wavy water stop rubber achieves the effect of waterproofing and sound insulation at the same time. The tail of the metal support plate of the water stop rubber faces downward, which can prevent the tail of the metal support plate from damaging the wavy water stop rubber; the tails of the two movable comb plates face downward, which can further buffer the vehicle impact force to reduce the damage and noise of the vehicle impact force to an extension gap.

Description

technical field [0001] The invention belongs to the field of bridge engineering, and in particular relates to a novel expansion joint device capable of reducing impact damage, waterproof and sound insulation, and a construction method thereof. Background technique [0002] When a car encounters a bridge expansion joint during driving, it often jumps at the junction of the expansion joint and the concrete, which not only affects the driving comfort, but also increases the impact damage to the expansion joint device and the surrounding concrete. Nowadays, many bridge expansion joint devices are equipped with water-stop rubber, but hard debris such as glass stones are easy to remain on the water-stop rubber, which will not only puncture the rubber, but also affect the expansion and contraction performance of the corrugated water-stop rubber. There is often a road under the bridge, so the bridge expansion joint device should have a good waterproof and sound insulation function t...

AI Technical Summary

Problems solved by technology

Some bridge expansion joint devices have a metal support plate under the water-stop rubber, but the metal support plate is easy to puncture the water-stop rubber

The current bridge expansion joint device adopts a comb-tooth plate structure in order to reduce the noise when vehicles pass through the bridge expansion joint device. However, when the vehicle load directly acts on the comb-tooth plate without buffering, it will not only make noise, but also Will increase damage to expansion joints

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