An embedded comb-tooth plate expansion device and its use method

Abstract

The invention discloses an embedded comb plate telescopic device and an application method thereof. The embedded comb plate telescopic device comprises a first moving comb plate, a second moving combplate, a stilling comb plate, a shock absorption rubber supporting seat, a fastening screw, anchoring devices, a stainless steel sliding plate and a water stop; the first moving comb plate is embeddedin concrete of an abutment, the second moving comb plate is connected with the first moving comb plate through the fastening screw, the stilling comb plate is parallel to the road surface and connected with the abutment on the other side through the concrete, gaps for meeting the transverse displacement of a bridge are reserved between combs of the mutual cooperation of the first moving comb plate, the second moving comb plate and the stilling comb plate in the transverse direction of the bridge surface; the stainless steel sliding plate is located below the abutment on one side of the stilling comb plate and used for sliding of the first moving comb plate; the shock absorption rubber supporting seat is located between the first moving comb plate and the second moving comb plate; the anchoring devices are connected to the upper surface and the lower surface of the first moving comb plate and used for connecting the concrete; and the anchoring devices are further connected to the lowersurface of the stilling comb plate.

Description

technical field [0001] The invention belongs to the technical field of bridge engineering, and in particular relates to an embedded comb-tooth plate telescoping device and a using method. Background technique [0002] In bridge engineering, under normal bridge service conditions, the bridge deck will deform due to concrete creep, temperature or traffic load changes. Therefore, it is necessary to set bridge expansion joints between the two ends of the bridge, between the beam end and the abutment, or at the hinged position of the bridge, and install bridge expansion devices at the bridge expansion joints to meet the needs of bridge deck deformation and ensure driving safety. safety and comfort as well as the safety of the bridge structure. [0003] At present, the expansion devices for highway bridges mainly include modular expansion devices and comb-tooth plate expansion devices. Among them, the comb-tooth plate telescopic device is more and more widely used in bridges due...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art, provide an embedded comb-tooth plate expansion device and its use method, and overcome the shortcomings of the existing comb-tooth plate type expansion device that the comb-tooth plate is easy to peel off from the concrete and has a low service life

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