Bridge deck sidewalk expansion joint structure

Abstract

The utility model relates to a bridge deck sidewalk expansion joint structure, which belongs to the field of municipal administration and highway engineering in the building industry and comprises a bridge deck pavement layer, a sidewalk structure layer is arranged above the bridge deck pavement layer, a sleeper beam is arranged at the end of the sidewalk structure layer, a fixed beam is arranged at the top of the sleeper beam, and the fixed beam is connected with the sidewalk structure layer. Expansion joint panels are fixedly connected to the fixing beams on the two sides of the expansion joint, and a sidewalk pavement layer is arranged above the sidewalk structure layer, so that by improving the structure of the bridge deck sidewalk expansion joint, after the expansion joint is installed, the service time is long, the maintenance cost is low, and the service life of the bridge deck sidewalk is prolonged. And the sealing effect is good, and the phenomenon of water leakage at the position of the expansion joint is avoided.

Description

Technical Field

[0001] This technical solution belongs to the fields of municipal and highway engineering in the construction industry, specifically the expansion joint structure of the bridge sidewalk. Background Art

[0002] In order to meet the requirements of bridge deck deformation, expansion joints are usually set between the two beam ends during the construction of the bridge sidewalk. The current technical practice is often to mark the position of the expansion joint before the construction of the sidewalk structural layer. After the construction of the sidewalk structural layer is completed, the sidewalk structural layer at the corresponding position of the expansion joint is cut, and the joint is filled with polysulfide sealant.

[0003] However, the inventor found that the prior art has the following drawbacks: the colloid is easy to fall off, and there is water leakage at the expansion joint.

[0004] In order to solve the above problems: the existing technology often replaces the colloid poured into the expansion joint. However, affected by the service time of the colloid, it needs to be replaced again after aging and falling off. The problem of high maintenance cost. Summary of the Invention

[0005] The purpose of the present invention is to provide an expansion joint structure for the bridge sidewalk. By improving the structure of the expansion joint of the bridge sidewalk, after the installation of the expansion joint, it has a long service time, low maintenance cost, good sealing effect, and prevents water leakage at the expansion joint position. The specific scheme is as follows:

[0006] An expansion joint structure for the bridge sidewalk, comprising:

[0007] Bridge deck paving layer: There is a sidewalk structural layer above the bridge deck paving layer. There is a sleeper beam at the end of the sidewalk structural layer. There is a fixed beam on the top of the sleeper beam. Expansion joint panels are fixedly connected to the fixed beams on both sides of the expansion joint. There is a sidewalk paving layer above the sidewalk structural layer.

[0008] Furthermore, the height of the sleeper beam is lower than the thickness of the sidewalk structural layer, so that both the upper and lower surfaces and the side surfaces of the sleeper beam are wrapped by the sidewalk structural layer, enhancing the stability of the sleeper beam;

[0009] Preferably, one side of the sleeper beam facing the expansion joint may not be wrapped by the sidewalk structural layer.

[0010] Preferably; the sleeper beam is made of C30 reinforced concrete.

[0011] Furthermore, the expansion joint panel is made of metal material. There is a V-shaped groove in the middle of the expansion joint panel that matches the width of the expansion joint, so that the ductility of the metal can be used in cooperation with the V-shaped groove to meet the expansion requirements of the expansion joint.

[0012] Further, bolt fixing holes are provided on the top surface of the fixed beam, and the fixed beam is fixed on the crossbeam by fixed beam fixing bolts.

[0013] Further, the expansion joint panel is fixedly connected to the fixed beams on both sides of the expansion joint.

[0014] Further, fixing plates extend downward on both sides of the expansion joint panel. A number of through holes are provided on the fixing plates. Bolt fixing holes are provided at positions on the side surface of the fixed beam corresponding to the through holes on the fixing plates for fixing the expansion joint panel to the fixed beam through the fixing plates using fixing bolts for the fixing plates.

[0015] Further, the depth of the V-shaped groove is 2 cm. Extension surfaces that are in contact with the surface of the fixed beam extend from both sides of the V-shaped groove of the expansion joint panel. The extension surfaces are perpendicular to the fixing plates, enabling the expansion joint panel to be inserted onto the fixed beams on both sides of the expansion joint and fixing the expansion joint panel to the fixed beams on both sides of the expansion joint through the fixing bolts for the fixing plates.

[0016] Further, the spacing between the bolt fixing holes in the same column on the fixed beam can be selected as needed.

[0017] Preferably, the spacing between the bolt fixing holes in the same column on the fixed beam is ≤ 0.5 m, and the bolt anchoring depth between the fixed beam and the crossbeam is ≥ 10 cm.

[0018] Further, a gasket is provided at the connection between the fixed beam and the crossbeam, enabling the fixed beam, the gasket, and the crossbeam to be fixed together through the fixed beam fixing bolts, and enabling the elevation to be adjusted through the gasket.

[0019] Compared with the prior art, a bridge deck sidewalk expansion joint structure of the present utility model has the following beneficial effects:

[0020] This application provides a bridge deck sidewalk expansion joint structure. By improving the structure of the bridge deck sidewalk expansion joint, after the expansion joint is installed, it has a long service life, low maintenance cost, good sealing effect, and eliminates the occurrence of water leakage at the expansion joint position. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of the present utility model;

[0022] Among them, 1. Bridge deck paving layer, 2. Sidewalk structural layer, 3. Crossbeam, 4. Fixed beam, 5. Expansion joint panel, 6. Sidewalk paving layer, 7. Gasket, 8. Fixing plate, 9. Fixed beam fixing bolt, 10. Fixing bolt for the fixing plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly defined and limited, the terms "installation", "provided with", "sheathed / connected", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0025] Embodiment 1: A bridge deck sidewalk expansion joint structure, comprising:

[0026] Bridge deck paving layer 1: Above the bridge deck paving layer 1, there is a sidewalk structure layer 2. At the end of the sidewalk structure layer 2, there is a sleeper beam 3. The sleeper beam 3 is made of C30 reinforced concrete. The height of the sleeper beam 3 is lower than the thickness of the sidewalk structure layer 2, so that both the upper and lower surfaces and the side surfaces of the sleeper beam 3 are wrapped by the sidewalk structure layer 2, enhancing the stability of the sleeper beam 3. On the top of the sleeper beam 3, there is a fixed beam 4. On the fixed beams 4 on both sides of the expansion joint, there is a fixed connection with an expansion joint panel 5. Above the sidewalk structure layer 2, there is a bridge deck paving layer 1. The expansion joint panel 5 is made of metal. In the middle of the expansion joint panel 5, there is a V-shaped groove matching the width of the expansion joint, so that the ductility of the metal can be used in cooperation with the V-shaped groove to meet the expansion and contraction requirements of the expansion joint. On the top surface of the fixed beam 4, there are bolt fixing holes. The fixed beam 4 is fixed on the sleeper beam 3 through a fixed beam fixing bolt 9. The expansion joint panel 5 is fixedly connected with the fixed beams 4 on both sides of the expansion joint. On both sides of the expansion joint panel 5, there are downward-extending fixing plates 8. There are several through holes on the fixing plates 8. At the places on the side surface of the fixed beam 4 corresponding to the through holes on the fixing plates 8, there are bolt fixing holes for fixing the expansion joint panel 5 on the fixed beam 4 through the fixing plates 8 using fixing plate fixing bolts 10. On both sides of the V-shaped groove of the expansion joint panel 5, there are extension surfaces that are in contact with the surface of the fixed beam 4. The extension surfaces are perpendicular to the fixing plates 8, so that the expansion joint panel 5 can be inserted into the fixed beams 4 on both sides of the expansion joint, and the expansion joint panel 5 can be fixed on the fixed beams 4 on both sides of the expansion joint through the fixing plate fixing bolts 10. The distance between the bolt fixing holes in the same column on the fixed beam 4 can be selected according to needs.

[0027] In addition, the utility model also discloses the following technical solutions on the basis of the above embodiments;

[0028] 1. The spacing between the bolt fixing holes in the same column on the fixed beam 4 is ≤ 0.5 m, and the bolt anchoring depth between the fixed beam 4 and the sleeper beam 3 is ≥ 10 cm.

[0029] 2. One side of the sleeper beam 3 facing the expansion joint may not be wrapped by the sidewalk structural layer 2.

[0030] 3. A gasket 7 is provided at the connection between the fixed beam 4 and the sleeper beam 3, so that the fixed beam 4, the gasket 7 and the sleeper beam 3 can be fixed together through the fixed beam fixing bolt 9, and the elevation can be adjusted through the gasket 7.

[0031] The construction method of the utility model is as follows:

[0032] Construction of the bridge deck paving layer 1;

[0033] After the bridge slab hoisting is completed, the bridge deck paving layer 1 is constructed, and its structure is reinforced concrete.

[0034] Construction of the expansion joint sleeper beam 3;

[0035] After the bridge deck paving layer 1 is completed, the expansion joint sleeper beam 3 is constructed along the expansion joint direction, using a C30 reinforced concrete structure, and its height is lower than the thickness of the sidewalk structural layer 2.

[0036] Installation of the fixed beam 4;

[0037] The fixed beam 4 is made of square steel with a wall thickness ≥ 5 mm. During the installation process, the elevation can be adjusted by using the gasket 7. The fixed beam 4 is fixed on the sleeper beam 3 through the steel beam fixing bolt. The bolt fixing spacing is ≤ 0.5 m, and the bolt anchoring depth is ≥ 10 cm.

[0038] Installation of the expansion joint panel 5

[0039] The expansion joint panel 5 is processed from a 2-mm-thick stainless steel plate. The "V"-shaped groove of the panel has a depth of 2 cm to provide a margin for expansion and contraction deformation. It is fixed on the steel beam through the panel fixing bolt. The bolt fixing spacing is ≤ 0.5 m.

[0040] Construction of the sidewalk structural layer 2;

[0041] After the panel is installed, the sidewalk structural layer 2 and the sidewalk paving layer 6 are constructed in sequence. Pay attention to protecting the expansion device during the construction process.

[0042] The above are only specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claimed rights.

Claims

1. A bridge deck sidewalk expansion joint structure, characterized in that: include: Bridge deck pavement layer: A sidewalk structural layer is arranged above the bridge deck pavement layer, a bolster is arranged at the end of the sidewalk structural layer, a fixed beam is arranged on the top of the bolster, expansion joint panels are fixedly connected to the fixed beams on both sides of the expansion joint, and a sidewalk pavement layer is arranged above the sidewalk structural layer.

2. The bridge deck pedestrian expansion joint structure according to claim 1, characterized in that: The height of the sleeper beam is lower than the thickness of the sidewalk structure layer.

3. The bridge deck pedestrian expansion joint structure according to claim 2, characterized in that: The sleeper beam is made of C30 reinforced concrete.

4. According to the bridge deck pedestrian expansion joint structure according to claim 1, it is characterized in that: A V-shaped groove matching the width of the expansion joint is provided in the middle of the expansion joint panel.

5. The bridge deck pedestrian expansion joint structure according to claim 1, characterized in that: The top surface of the fixed beam is provided with a bolt fixing hole, and the fixed beam is fixed on the bolster by means of the fixed beam fixing bolts.

6. The bridge deck pedestrian expansion joint structure according to claim 1, characterized in that: The expansion joint panel is fixedly connected to the fixed beams on both sides of the expansion joint.

7. The bridge deck pedestrian expansion joint structure according to claim 1, characterized in that: Fixed plates are extended downward on both sides of the expansion joint panel, and a plurality of through holes are provided on the fixed plates. Bolt fixing holes are provided on the side surfaces of the fixed beam corresponding to the through holes on the fixed plates for fixing the expansion joint panel to the fixed beam through the fixed plates using the fixing plate fixing bolts.

8. The bridge deck pedestrian expansion joint structure according to claim 4, characterized in that: The depth of the V-shaped groove is 2 cm. Both sides of the V-shaped groove of the expansion joint panel extend with extended surfaces that are in contact with the surface of the fixed beam. The extended surfaces are perpendicular to the fixed plate, so that the expansion joint panel can be inserted into the fixed beams on both sides of the expansion joint, and the expansion joint panel can be fixed to the fixed beams on both sides of the expansion joint through the fixing plate fixing bolts.

9. A bridge deck pedestrian expansion joint structure according to any one of claims 5 to 8, characterized in that: The spacing between the bolt fixing holes in the same row on the fixing beam is ≤0.5m, and the bolt anchoring depth between the fixing beam and the pillow beam is ≥10cm.

10. The bridge deck pedestrian expansion joint structure according to claim 9, characterized in that: A gasket is provided at the connection between the fixed beam and the bolster, so that the fixed beam, the gasket and the bolster can be fixed together by the fixed beam fixing bolts.

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