Vibration reduction type bridge expansion joint device

Abstract

The utility model relates to the technical field of bridge expansion joints, and discloses a vibration reduction type bridge expansion joint device which comprises a concrete bridge deck slab, asphalt pavement layers and a filling layer, the asphalt pavement layers and the filling layer are arranged on the concrete bridge deck slab, and the filling layer is arranged between the asphalt pavement layers. A filling layer is arranged on the concrete bridge deck slab, high-strength resin concrete is arranged in the filling layer, an expansion joint gap is formed in the butt joint position of the concrete bridge deck slab, a joint crossing plate is arranged on the expansion joint gap, an extruded sheet is arranged on the joint crossing plate, and the extruded sheet divides the high-strength resin concrete into two sections. The device has the advantages of simple structure, high construction efficiency and long-acting durability.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge expansion joint technical field, concretely relates to a kind of damping type bridge expansion joint device. BACKGROUND

[0002] Bridge expansion joint is an important component in bridge structure, it is usually set between two beam ends, beam end and abutment or hinged position of bridge. This design is to meet the requirements of bridge deformation, to ensure that bridge can maintain stability and safety under various natural factors and human factors. Bridge expansion joint generally has butt joint type, steel supporting type, combined shear type (plate type), modulus supporting type and elastic device, wherein butt joint type: according to its structural form and stress characteristics, it can be divided into two kinds of filling butt joint type and embedded butt joint type. The filling butt joint type expansion device is filled with gap with asphalt, wood board, cotton wadding, rubber and other materials, and expansion body is in compression state in any case. This kind of expansion device is generally used in conventional bridge engineering with expansion amount below 40mm;When the expansion deformation amount of bridge exceeds 50mm, steel expansion device is usually used. When vehicle passes, the expansion device often produces beating action due to beam end rotation or deflection deformation, with loud noise, and the structure is easy to be damaged. Therefore, the device with bolt spring is used to fix sliding steel plate, to reduce beating and noise, and the structure of expansion joint is relatively complex.

[0003] Chinese patent document CN105369732A discloses a bridge expansion joint structure with cross-gap plate, which comprises expansion joint and sealing structure arranged on the expansion joint, and the gap between two adjacent bridge decks forms the expansion joint. Bridge deck pavement layer is arranged on each bridge deck, and the bridge deck pavement layer is shorter than the bridge deck to leave installation gap.

[0004] Chinese patent document CN105541180A discloses an epoxy mortar for bridge expansion joint and construction method, wherein the bridge expansion joint structure comprises adjacent bridge deck pavement layer 1, bridge deck base layer 5 and polystyrene foam plate 3. The polystyrene foam plate 3 is clamped in the gap between two bridge deck base layers 5, the adjacent bridge deck pavement layer is arranged on the bridge deck base layer 5, and a long groove is formed between the adjacent bridge deck pavement layer and the polystyrene foam plate 3. The epoxy mortar material is filled in the long groove. The height of the epoxy mortar layer 2 filled with epoxy mortar material is flush with the height of the bridge deck pavement layer 1, and the height of the epoxy mortar layer 2 is higher than the height of the polystyrene foam plate 3. The gap between the two adjacent epoxy mortar layers 2 and the foam plate is expandable.

[0005] The prior art has the following disadvantages: the anti-deformation amount of the integrated sealing structure in the prior bridge expansion joint is small and the durability is poor; and the bridge expansion joint provided with the polystyrene foam board is suitable for bridge engineering with expansion joint gap below 80mm, and cannot be used for expansion joint gap above 80mm. Content of the utility model

[0006] The utility model provides a kind of vibration-damping type bridge expansion joint device suitable for horizontal deformation amount ≤80mm, and expansion joint gap distance >80mm, including concrete bridge deck, asphalt pavement and filling layer, and the concrete bridge deck is asphalt pavement and filling layer, and the filling layer is between the asphalt pavement, it is characterized in that, high-strength resin concrete is arranged in the filling layer, the butt joint of the concrete bridge deck is expansion joint gap, expansion joint gap is equipped with cross joint plate, cross joint plate is equipped with extruded sheet, and extruded sheet divides high-strength resin concrete into two sections.

[0007] In order to avoid high-strength resin concrete and cross joint plate bonding closely and affecting deformation, and at the same time avoid water seepage corrosion cross joint plate, a transition layer is provided on the cross joint plate.

[0008] Further, the highest point of the extruded sheet is lower than the horizontal plane of the filling layer, and the expansion joint gap between the two sections of the filling layer is filled with a sealing agent.

[0009] Preferably, the highest point of the sealing agent is lower than the horizontal plane of the filling layer.

[0010] In order to facilitate paving while ensuring overall performance, a cross joint plate is provided in the horizontal direction on the expansion joint gap, an extruded sheet is provided in the vertical direction on the cross joint plate, the extruded sheet is perpendicular to the cross joint plate, and the width of the extruded sheet is less than the expansion joint gap.

[0011] Preferably, the extruded sheet is located above the middle of the cross joint plate, the expansion joint gap is located below the middle of the cross joint plate, and the extruded sheet and the expansion joint gap are in the same vertical plane.

[0012] Preferably, the expansion joint gap distance is >80mm.

[0013] Preferably, a layer of bonding agent is provided on the surface of the high-strength resin concrete, and anti-skid aggregate is provided on the bonding agent.

[0014] The utility model has the following beneficial effects:

[0015] The utility model discloses simple structure, construction efficient, long -term durability can exempt from section steel, comb tooth board structure, greatly shorten construction time, and high -strength resin concrete maintenance time is short, can be controlled within 2h, and the influence to traffic is less, through the setting cross -joint plate and transition layer, can be applicable to the bridge expansion joint of horizontal deformation amount ≤80mm, and expansion joint gap distance > 80mm. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the schematic diagram of the embodiment of the damping type bridge expansion joint device of the utility model. DETAILED DESCRIPTION

[0017] The following is further explained in detail by specific implementation:

[0018] 1, definition: extruded sheet, also known as extruded polystyrene board, XPS board, is a kind of hard foam plastic plate that is heated and extruded, which is made of polystyrene resin and other additives through extrusion process, and has a continuous and uniform surface layer and a closed-cell honeycomb structure, and is the third generation of rigid foam insulation material, and is a kind of building construction insulation material.

[0019] 2, the reference signs in the drawings of the specification include: concrete bridge deck 1, expansion joint gap 2, cross joint plate 3, transition layer 4, asphalt pavement 5, filling layer 6, sealant 7, extruded sheet 8.

[0020] Example 1

[0021] As shown in Figure 1 A damping type bridge expansion joint device, comprising a concrete bridge deck 1, an asphalt pavement 5 and a filling layer 6, the concrete bridge deck 1 is provided with the asphalt pavement 5 and the filling layer 6, the filling layer 6 is between the asphalt pavement 5, high-strength resin concrete is arranged in the filling layer 6, the butt joint of the concrete bridge deck 1 is an expansion joint gap 2, a cross joint plate 3 is arranged above the expansion joint gap 2, an extruded sheet 8 is arranged above the cross joint plate 3, and the extruded sheet 8 divides the high-strength resin concrete into two sections.

[0022] A transition layer 4 is arranged on the cross joint plate 3, and the transition layer 4 is made of rubber.

[0023] The highest point of the extruded sheet 8 is lower than the horizontal plane of the filling layer 6, the gap between the two sections of the filling layer 6 is filled with a sealant 7, and the sealant 7 is made of a single-component polyurea material.

[0024] The highest point of the sealant 7 is lower than the horizontal plane of the filling layer 6.

[0025] The cross joint plate 3 is arranged in the horizontal direction on the expansion joint gap 2, the extruded sheet 8 is arranged in the vertical direction on the cross joint plate 3, and the extruded sheet 8 is perpendicular to the cross joint plate 3.

[0026] The extruded plate 8 is located above the middle of the cross joint plate 3, the expansion joint gap 2 is located below the middle of the cross joint plate 3, and the extruded plate 8 is in the same vertical plane as the expansion joint gap 2.

[0027] The distance of the expansion joint gap 2 is >80mm.

[0028] The high-strength resin concrete surface is provided with a layer of adhesive, and the adhesive is provided with anti-skid aggregate.

[0029] The above is only an embodiment of the present application, and the common knowledge of specific structures and properties in the scheme is not described in detail, the ordinary skilled in the art knows all the ordinary technical knowledge in the technical field of the present application before the filing date or the priority date, can know all the prior art in the field, and has the ability to apply conventional experimental means before that date, the ordinary skilled in the art can improve and implement the present scheme under the guidance of the present application, some typical known structures or known methods should not be an obstacle for the ordinary skilled in the art to implement the present application. It should be pointed out that for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, which will not affect the effect and practicality of the present application. The scope of protection claimed in the present application should be subject to the content of its claims, and the specific implementation mode in the specification can be used to explain the content of the claims.

Claims

1. A vibration-damping bridge expansion joint device comprising a concrete bridge deck slab (1), an asphalt pavement layer (5) and a filler layer (6), the asphalt pavement layer (5) and the filler layer (6) being on the concrete bridge deck slab (1), the filler layer (6) being between the asphalt pavement layers (5), characterized in that, The high-strength resin concrete is arranged in the filling layer (6), the abutting place of the concrete bridge deck slab (1) is the expansion joint gap (2), the expansion joint gap (2) is provided with the cross joint plate (3), the cross joint plate (3) is provided with the extruded plate (8), and the extruded plate (8) divides the high-strength resin concrete into two sections.

2. The vibration-damping bridge expansion joint apparatus of claim 1, wherein: The cross joint plate (3) is provided with a transition layer (4).

3. The vibration-damping bridge expansion joint apparatus of claim 2, wherein: The highest point of the extruded plate (8) is lower than the horizontal plane of the filling layer (6), and the gap between the two sections of the filling layer (6) is filled with a sealing agent (7).

4. The vibration-damping bridge expansion joint apparatus of claim 3, wherein: The highest point of the sealing agent (7) is lower than the horizontal plane of the filling layer (6).

5. The vibration-damping bridge expansion joint apparatus of any one of claims 1-4, wherein: The cross joint plate (3) is arranged on the expansion joint gap (2) in the horizontal direction, the extruded plate (8) is arranged on the cross joint plate (3) in the vertical direction, the extruded plate (8) is perpendicular to the cross joint plate (3), and the width of the extruded plate (8) is less than the width of the expansion joint gap (2).

6. The vibration-damping bridge expansion joint apparatus of claim 5, wherein: The extruded plate (8) is located above the middle of the cross joint plate (3), the expansion joint gap (2) is located below the middle of the cross joint plate (3), and the extruded plate (8) and the expansion joint gap (2) are in the same vertical plane.

7. The vibration-damping bridge expansion joint apparatus of claim 6, wherein: The distance between the expansion joint gap (2) is greater than 80 mm.

8. The vibration-damping bridge expansion joint apparatus of claim 6 or 7, wherein: The high-strength resin concrete is provided with a layer of bonding agent, and the bonding agent is provided with anti-skid aggregate.

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