Modular expansion device for bridge

Abstract

The utility model discloses a bridge modular expansion device, which relates to the technical field of bridge construction, and comprises a middle beam profile steel, a first cavity is arranged on the side wall of the middle beam profile steel, and a first clamping part is arranged at the opening of the first cavity; the boundary beam profile steel is arranged on one side of the middle beam profile steel, a second cavity is formed in the side wall of the boundary beam profile steel and is opposite to the first cavity, and a second clamping part is arranged at an opening of the second cavity; a sunken part is arranged in the middle of the water stop piece, and bending parts which can be clamped with the first clamping part and the second clamping part are arranged at the two ends of the water stop piece; the auxiliary clamping pieces are arranged in the first cavity and the second cavity correspondingly so that the bent parts at the two ends of the water stop piece can be limited to the first clamping part and the second clamping part correspondingly. The utility model solves the problem in the prior art that the normal operation of the lower railway is influenced because the water stop rubber strip on the bridge with the highway-railway double-layer structure falls onto the lower railway.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge construction technical field more specifically relates to a bridge modulus formula telescopic device. BACKGROUND

[0002] At present, for the bridge or super large bridge of foundation engineering complex, pier and platform cost is higher, and near city, railway and highway are relatively dense and need to build railway bridge and highway bridge to connect the line, in order to reduce cost and shorten the construction period, highway, railway is often built simultaneously shared bridge, called highway-railway combined bridge.

[0003] The upper part of highway-railway double-layer structure bridge is highway surface, and the lower part is railway surface, and the structure will appear that the water stop rubber strip of upper highway bridge telescopic device falls on the lower railway bridge, and the operation of the lower railway bridge is affected. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model provides a bridge modulus formula telescopic device, aims at solving the problems in the above background art, prevents the water stop rubber strip on highway-railway double-layer structure bridge from falling on the lower railway, and further affects the normal operation of the lower railway.

[0005] In order to realize the above purpose, the utility model adopts the following technical scheme:

[0006] A bridge modulus formula telescopic device, comprising:

[0007] The side wall of the middle beam profile steel is provided with a first cavity, and the opening of the first cavity is provided with a first clamping part;

[0008] The side wall of the side beam profile steel is provided with a second cavity, and the second cavity is arranged opposite to the first cavity, and the opening of the second cavity is provided with a second clamping part;

[0009] The water stop part has a recess in the middle, and both ends of the water stop part have a bending part capable of clamping the first clamping part and the second clamping part;

[0010] The auxiliary clamping part is arranged in the first cavity and the second cavity respectively, so that the bending parts at both ends of the water stop part are limited on the first clamping part and the second clamping part respectively.

[0011] According to the bridge modulus formula telescopic device provided by the utility model, the side beam profile steel is provided with two, the two side beam profile steels are symmetrically arranged on both sides of the middle beam profile steel, and the two side beam profile steels are mirror image structures with the middle beam profile steel, the first cavity and the first clamping part are arranged on both sides of the middle beam profile steel, and the water stop part is arranged between the two side beam profile steels and the middle beam profile steel.

[0012] According to the bridge modular expansion device, the rubber fixing strip is used for limiting the transverse displacement of the water stop element in the first cavity and the second cavity, and the rubber locking strip is used for limiting the longitudinal displacement of the water stop element in the first cavity and the second cavity.

[0013] According to the bridge modular expansion device, grooves are arranged on the inner walls of the first cavity and the second cavity, and the grooves are used for limiting the rubber locking strip.

[0014] According to the bridge modular expansion device, the rubber locking strip has a cavity along the axial direction of the rubber locking strip.

[0015] According to the bridge modular expansion device, the first clamping part and the second clamping part are in a hook shape.

[0016] According to the bridge modular expansion device, the first clamping part and the second clamping part at the two ends of the water stop element are in a symmetrical structure.

[0017] According to the technical scheme, compared with the prior art, the bridge modular expansion device is provided, the first cavity is arranged on the side wall of the middle beam profile steel, the second cavity is arranged on the side wall of the side beam profile steel, the first clamping part is arranged at the opening of the first cavity, the second clamping part is arranged at the opening of the second cavity, the two ends of the water stop element are provided with the bending parts which are clamped with the first clamping part and the second clamping part respectively, the two ends of the water stop element can be clamped in the first cavity and the second cavity respectively, the auxiliary clamping part is arranged in the first cavity and the second cavity, and the bending parts at the two ends of the water stop element can be limited on the first clamping part and the second clamping part, so that the two ends of the water stop element can be prevented from being separated from the first cavity and the second cavity, and the problem that the water stop rubber strip on the double-layer structure bridge of the existing technology falls on the lower railway and affects the normal operation of the lower railway is solved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only embodiments of the present application, and other drawings can be obtained by the provided drawings without creative labor for those skilled in the art.

[0019] Figure 1 The structural schematic diagram of the bridge modular expansion device provided by the present application is shown in the figure.

[0020] Figure 2 The utility model provides a structure schematic drawing of the middle beam type steel;

[0021] Figure 3 The utility model provides a structure schematic drawing of the side beam type steel;

[0022] Figure 4 The utility model provides a structure schematic drawing of the water stop.

[0023] Among them: 1 is middle beam type steel, 2 is side beam type steel, 3 is water stop, 4 is auxiliary clamping part, 41 is rubber fixed strip, 42 is rubber locking strip, 5 is first cavity, 6 is first clamping part, 7 is second cavity, 8 is second clamping part, 9 is bending part, 10 is recess, 11 is recess, 12 is cavity. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the utility model.

[0025] Referring to Figures 1-4 The utility model embodiment discloses a bridge module type expansion joint, including: middle beam type steel 1, side beam type steel 2, water stop 3 and auxiliary clamping part 4.

[0026] The side wall of the middle beam type steel 1 is provided with the first cavity 5, and the first clamping part 6 is arranged at the opening of the first cavity 5. Preferably, the first clamping part 6 is arranged at the opening of the first cavity 5, the first clamping part 6 is a protruding structure extending to the bottom of the first cavity 5, the upper surface of the first clamping part 6 is a plane, and the lower surface of the first clamping part 6 has a gap with the inner wall of the first cavity 5.

[0027] The side beam type steel 2 is arranged at one side of the middle beam type steel 1, the side wall of the side beam type steel 2 is provided with the second cavity 7, the second cavity 7 is arranged opposite to the first cavity 5, and the second clamping part 8 is arranged at the opening of the second cavity 7. Preferably, the second clamping part 8 is arranged at the opening of the second cavity 7, the second clamping part 8 is a protruding structure extending to the bottom of the second cavity 7, the upper surface of the second clamping part 8 is a plane, the lower surface of the second clamping part 8 has a gap with the inner wall of the second cavity 7, and the structure of the second clamping part 8 is same with that of the first clamping part 6.

[0028] The water stop 3 has a recess 10 in the middle, and both ends of the water stop 3 have a bent portion 9 capable of being clamped with the first clamping portion 6 and the second clamping portion 8. In the embodiment, the bent portion 9 at both ends of the water stop 3 can be clamped on the first clamping portion 6 and the second clamping portion 8 respectively, the bent portion 9 can be in contact with the surface of the first clamping portion 6 and the second clamping portion 8, and then the two ends of the water stop 3 can be clamped on the side walls of the middle beam profiled steel 1 and the side beam profiled steel 2 to prevent the water stop 3 from falling off the middle beam profiled steel 1 and the side beam profiled steel 2. Preferably, the water stop 3 is made of stainless steel, which has good corrosion resistance. The recess 10 in the middle of the water stop 3 has a U-shaped or V-shaped structure, or other structures, as long as it can guide the rainwater.

[0029] The auxiliary clamping member 4 is arranged in the first cavity 5 and the second cavity 7 respectively, so that the bent portion 9 at both ends of the water stop 3 is limited in the first clamping portion 6 and the second clamping portion 8 respectively. The auxiliary clamping member 4 can be arranged in the first cavity 5 and the second cavity 7, thereby limiting the bent portion 9 of the water stop 3, so that the bent portion 9 at both ends of the water stop 3 is in contact with the first clamping portion 6 and the second clamping portion 8.

[0030] It should be noted that by arranging the first cavity 5 on the side wall of the middle beam profiled steel 1, the second cavity 7 on the side wall of the side beam profiled steel 2, the first clamping portion 6 at the opening of the first cavity 5, the second clamping portion 8 at the opening of the second cavity 7, and the bent portion 9 at both ends of the water stop 3 capable of being clamped with the first clamping portion 6 and the second clamping portion 8 respectively, the two ends of the water stop 3 can be clamped in the first cavity 5 and the second cavity 7 respectively. By arranging the auxiliary clamping member 4 in the first cavity 5 and the second cavity 7, the bent portion 9 at both ends of the water stop 3 can be limited in the first clamping portion 6 and the second clamping portion 8, thereby preventing the two ends of the water stop 3 from being separated from the first cavity 5 and the second cavity 7, and solving the problem that the water stop rubber strip on the existing public and railway double-layer structure bridge falls onto the lower railway and affects the normal operation of the lower railway.

[0031] According to the bridge modular expansion device, the two side beam steels 2 and the middle beam steel 1 form a symmetrical structure, in other embodiments, the middle beam steel 1 can be provided with a plurality of middle beam steels 1, the plurality of middle beam steels 1 are sequentially connected through the water stop pieces 3, the two end middle beam steels 1 are respectively connected with one side beam steel 2 through the water stop pieces 3, and the number of the middle beam steels 1 can be set according to the width of the road, and the number of the middle beam steels 1 is not limited.

[0032] According to the bridge modular expansion device, the auxiliary clamping piece 4 includes a rubber fixing strip 41 and a rubber locking strip 42, the rubber fixing strip 41 is used for limiting the transverse displacement of the water stop piece 3 in the first cavity 5 and the second cavity 7, and the rubber locking strip 42 is used for limiting the longitudinal displacement of the water stop piece 3 in the first cavity 5 and the second cavity 7.

[0033] According to the bridge modular expansion device, the first cavity 5 and the second cavity 7 are provided with grooves 11 on the inner walls, and the grooves 11 are used for limiting the rubber locking strip 42.

[0034] According to the bridge modular expansion device, the rubber locking strip 42 has a cavity 12 along the axial direction.

[0035] According to the bridge modular expansion device, the first clamping part 6 and the second clamping part 8 are both in the shape of a hook.

[0036] According to the bridge modular expansion device, the first clamping part 6 and the second clamping part 8 at the two ends of the water stop part 3 are symmetrical structures.

[0037] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same or similar parts of each embodiment can be mutually referred to. For the device disclosed by the embodiments, since it corresponds to the method disclosed by the embodiments, the description is relatively simple, and the related parts can be referred to the method part.

[0038] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A modular expansion joint for bridges, characterized in that, include: A central beam steel section, wherein a first cavity is provided on the side wall of the central beam steel section, and a first snap-fit ​​part is provided at the opening of the first cavity; A side beam steel section is provided on one side of the middle beam steel section. A second cavity is provided on the side wall of the side beam steel section. The second cavity is opposite to the first cavity. A second snap-fit ​​part is provided at the opening of the second cavity. A water-stopping component, wherein the water-stopping component has a recessed portion in the middle, and both ends of the water-stopping component have bent portions that can engage with the first snap-fit ​​portion and the second snap-fit ​​portion. Auxiliary snap-fit ​​components are respectively disposed in the first cavity and the second cavity, so that the bent portions at both ends of the waterstop are respectively restricted on the first snap-fit ​​portion and the second snap-fit ​​portion.

2. The modular expansion joint for bridges according to claim 1, characterized in that, Two side beams are provided, and the two side beams are symmetrically arranged on both sides of the middle beam. The two side beams are mirror images of the middle beam. The middle beam has the first cavity and the first snap-fit ​​part on both sides. The water-stopping component is provided between the two side beams and the middle beam.

3. The modular expansion joint for bridges according to claim 1, characterized in that, The auxiliary snap-fit ​​component includes a rubber fixing strip and a rubber locking strip. The rubber fixing strip is used to limit the lateral displacement of the water-stop component in the first cavity and the second cavity, and the rubber locking strip is used to limit the longitudinal displacement of the water-stop component in the first cavity and the second cavity.

4. The modular expansion joint for bridges according to claim 3, characterized in that, The inner walls of both the first cavity and the second cavity are provided with grooves, which are used to limit the rubber locking strip.

5. The modular expansion joint for bridges according to claim 3, characterized in that, The rubber locking strip has a through-body cavity along its axial direction.

6. The modular expansion joint for bridges according to claim 1, characterized in that, Both the first and second snap-fit ​​parts are hook-shaped.

7. The modular expansion joint for bridges according to claim 1, characterized in that, The first and second locking parts at both ends of the water-stopping component have a symmetrical structure.

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