Arch type seamless expansion joint module made of continuous materials, structure, construction method and bridge

Abstract

The invention relates to an arch type seamless expansion joint module made of continuous materials, a structure, a construction method and a bridge. According to the seamless expansion joint structure, the corrugated steel plate upwards supports the elastic material in an arch shape in the longitudinal bridge direction, the vertical rigidity of the combined elastic body is improved, and the situation that the road surface is unsmooth due to too large vertical deflection deformation of the combined elastic body under vertical wheel loads is prevented; the corrugated steel plate can enhance the coupling with the upper elastic material, reduce the deformation constraint on the elastic material, and give enough deformation coordination and release capability to the elastic material during axial tension and compression deformation and corner deformation, so that the corrugated steel plate is not easy to separate from the upper elastic material, and the upper elastic material can be continuously supported; the rigidity transition from the bridge floor to the expansion joint is smooth, the increase of vehicle load impact is avoided, the bumping of vehicles during passing is reduced, and the driving comfort is improved; the end plate can be anchored on the bridge deck pavement of the main beam body on the corresponding side of the expansion joint through the bridge deck anchoring structure, connection between the end plate and the bridge deck pavement is not prone to damage, and the service life is longer.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge seamless expansion joints, and particularly to an arch - type seamless expansion joint module with continuous materials, a structure, a construction method and a bridge. Background Art

[0002] An expansion joint is a general accessory structure in bridge engineering. It is usually set at the bridge deck connection positions between two - span bridges, between the bridge end and the abutment, and is used to compensate for the bridge deformation caused by temperature loads, live loads under normal conditions, and earthquake loads, impact loads and settlement displacements under emergency conditions, release the internal force of the main bridge structure, and avoid structural damage.

[0003] Under the influence of daily and annual temperature differences, the beam body expands and contracts thermally, and the expansion joint is accordingly squeezed and stretched. Under the action of live loads, the beam end rotates upward, and the expansion joint accordingly undergoes bending deformation. Therefore, it is necessary to have a longitudinal bridge - direction linear stiffness and a rotational stiffness matching the structure to adapt to the deformation, and the structure needs to meet the fatigue - resistance performance requirements of repeated expansion and contraction deformation and bending deformation. As a connection structure of the bridge deck structure, the expansion joint needs to have a certain vertical stiffness to ensure the continuity of the bridge deck and the driving comfort. Under the action of vehicle flow, the expansion joint is repeatedly subjected to vehicle impact loads, and the surface and the weak connection surface of the structure are easily damaged, so it needs to have high durability. In addition, the expansion joint should also take into account many functions such as dust prevention, seepage prevention, shock absorption and noise reduction, and convenient construction and replacement.

[0004] Through years of engineering applications, it has been found that traditional comb - type expansion joints and modular expansion joints have many problems: (1) After the expansion joint adapts to the rotation of the beam end, the steel section bulges upward, resulting in vehicle jumping when the vehicle passes, seriously affecting driving comfort; (2) The gap between the steel sections on the top surface of the expansion joint cannot prevent rain, snow and dust, resulting in the accumulation of water and dirt, which affects the deformation ability of the expansion joint; (3) The stiffness transition from the bridge deck to the expansion joint is not smooth, resulting in an increase in vehicle load impact and serious wear and cracking of the concrete on the connection surface with the steel section.

[0005] The "Provisional Technical Conditions for Elastomeric Expansion Joints of Railway Concrete Bridges" issued in 2013 proposed a seamless expansion joint with an arch - shaped structure formed by matching an arch - shaped steel plate 300 with an elastomer (elastic material 302) on the main beam bodies 101 on both sides of the expansion joint, as Figure 1As shown in the figure, the arched steel plate 300 provides stiffness for the elastomer. However, the deformation of the arched steel plate 300 is not exactly the same as that of the elastomer, making it easy for the contact surface between the two to form a void, which in turn causes the top surface of the arched steel plate 300 to be unable to support the elastomer, and thus unable to provide stiffness for the elastomer. This results in an uneven stiffness transition from the bridge deck to the expansion joint, increasing the vehicle load impact and causing the vehicle to jump when passing through, seriously affecting the driving comfort. In addition, the elastomer and the bridge girder are bonded by the material properties of the elastic material, and the connection between the two is easily damaged, thereby affecting the expansion and contraction ability of the elastomer. And under no constraint conditions, due to the out-of-plane deformation constraint of the bottom arched steel plate 300 on the bottom surface of the elastomer being greater than that on the top surface, the elastomer will be extruded upward after being compressed, and a certain arc will be formed on the top surface. For railway bridges, the track slab on the beam is placed above the expansion joint, similar to a cover plate, which can limit the upward extrusion deformation of the elastomer. However, for highway bridges, without the constraint of the track slab, this deformation will cause the road surface to be uneven, resulting in vehicle jumping, affecting driving comfort, and thus making it not suitable for use in the expansion joints of highway bridges. Summary of the Invention

[0006] The purpose of the present invention is to overcome the deficiencies of the seamless expansion joint with an arched structure formed by the cooperation of an arched steel plate and an elastomer in the prior art, namely, "it is easy for the contact surface between the arched steel plate and the elastomer to form a void, which in turn causes the top surface of the arched steel plate to be unable to support the elastomer, unable to provide stiffness for the elastomer, resulting in an uneven stiffness transition from the bridge deck to the expansion joint, increasing the vehicle load impact and causing the vehicle to jump when passing through, seriously affecting the driving comfort; in addition, the elastomer and the bridge girder are bonded by the material properties of the elastic material, and the connection between the two is easily damaged, thereby affecting the expansion and contraction ability of the elastomer", and to provide a continuous material arch-type seamless expansion joint module, structure, construction method and bridge.

[0007] In a first aspect, the present invention provides a continuous material arch-type seamless expansion joint module, comprising: a combined elastomer and a bridge deck anchoring structure. The combined elastomer includes an expansion plate and an elastic material. The expansion plate includes a corrugated steel plate in the middle in the longitudinal bridge direction and end plates provided at both ends in the longitudinal bridge direction. The corrugation bending direction of the corrugated steel plate is arranged along the longitudinal bridge direction, and the corrugated steel plate is arched upward in the longitudinal bridge direction. The elastic material is coupled directly above the corrugated steel plate and is located between the end plates at both ends in the longitudinal bridge direction. The end plates at both ends in the longitudinal bridge direction are respectively attached to both sides of the elastic material in the longitudinal bridge direction.

[0008] The end plate can be anchored to the bridge deck concrete layer of the bridge deck paving on the main beam body on the corresponding side of the expansion joint through the bridge deck anchoring structure; and / or, the end plate can be anchored to the main beam body.

[0009] The continuous arch - type seamless expansion joint module of the material described in the present invention is composed of an expansion plate formed by a corrugated steel plate and end plates respectively connected to both longitudinal - bridge - direction ends of the corrugated steel plate, and an elastic material between the corrugated steel plate and the end plates, jointly forming a composite elastic body. Since the corrugation bending direction of the corrugated steel plate is arranged along the longitudinal - bridge direction, that is, the axial tension - compression stiffness and flexural stiffness in the longitudinal - bridge direction are less than those in the transverse - bridge direction, it can cooperate with the elastic material to deform together. The corrugated steel plate is arranged in an upward - arched shape in the longitudinal - bridge direction, so as to convert the vertical load from an external surface force into an in - plane axial force, improve the vertical stiffness of the composite elastic body, and prevent excessive vertical deflection deformation of the composite elastic body under the vertical load. The corrugated steel plate can enhance the coupling with the upper elastic material, and at the same time reduce the deformation constraint on the elastic material, giving the elastic material sufficient deformation coordination and release ability during axial tension - compression deformation and angular deformation, so that the corrugated steel plate and the upper elastic material are not easily separated, can continuously support the upper elastic material, making the stiffness transition from the bridge deck to the expansion joint smooth, avoiding an increase in vehicle - load impact, reducing vehicle bounce when passing through, and improving driving comfort. Moreover, the end plate can be anchored to the bridge - deck concrete layer of the bridge - deck pavement above the main - beam body on the corresponding side of the expansion joint through the bridge - deck anchoring structure, and / or the end plate can be anchored to the main - beam body, so that the connection between the composite elastic body and the two - side bridge main - structure is not easily damaged and has a longer service life.

[0010] Preferably, the bridge - deck anchoring structure includes a plurality of perforated steel plates welded to the side of the end plate facing away from the elastic material. The perforated steel plates are arranged along the longitudinal - bridge direction, and the perforated steel plates welded to each end plate are spaced apart along the transverse - bridge direction. The perforated steel plates are used to be buried in the bridge - deck concrete layer on the corresponding side of the expansion joint on both longitudinal - bridge - direction sides. The shear keys formed by the concrete in the holes of the perforated steel plates are used to form the anchoring connection between the continuous - material arch - type seamless expansion joint module and the corresponding - side bridge - deck concrete layer, strengthening the anchoring of the composite elastic body and the bridge - deck pavement, avoiding the connection surface between the bridge - deck pavement and the composite elastic body from becoming a tensile - weak surface, and being able to improve the durability of the seamless expansion joint structure.

[0011] Preferably, at least two widths of the perforated steel plates are set in the longitudinal - bridge direction, and the perforated steel plates with different longitudinal - bridge - direction widths are alternately arranged on the end plate along the transverse - bridge direction.

[0012] The widths of the perforated steel plates in the longitudinal - bridge direction are set to two or more sizes, and different sizes are alternately placed in the transverse - bridge direction to prevent stress concentration in the bridge - deck concrete layer due to sudden stiffness change, resulting in the section where the edge of the perforated steel plate is located becoming a vulnerable weak surface, affecting the service life of the seamless expansion joint structure and the driving smoothness.

[0013] Preferably, the wave height d1 of the corrugations of the corrugated steel plate is 5 mm - 20 mm, and the wave pitch d2 of the corrugations of the corrugated steel plate is 10 mm - 25 mm; under the condition of ensuring processing accuracy, waveforms with a higher wave height and a smaller wave pitch are preferably adopted as much as possible to increase the coupling area with the elastic material, enhance the coordinated deformation ability, and provide a larger deformation release space for the elastic material;

[0014] And / or, the thickness of the corrugated steel plate is 0.5 mm - 3 mm. The corrugated steel plate has a relatively thin thickness so that the corrugated area coupled with the elastic material has a smaller structural stiffness and better deformation coordination ability; the thickness of the end plates is 3 mm - 6 mm. The two end plates have a relatively thick thickness, providing sufficient side formwork stiffness, preventing them from being melted and burned through due to heat concentration during welding with the perforated steel plate, reducing the welding difficulty, and improving the welding quality;

[0015] And / or, the elastic material is polyurethane, polyurea grouting liquid or rubber, which has a small stiffness, a large elasticity, and good bonding properties with concrete and steel;

[0016] And / or, the two end plates on both sides are L-shaped and arranged oppositely. The L-shaped includes a horizontal plate and a vertical plate. The horizontal plate is located below the vertical plate. The horizontal plates of the two L-shaped are arranged oppositely. The horizontal plates of the two end plates on both sides are connected to the wave troughs at the corresponding ends of the corrugated steel plate in the longitudinal bridge direction, which is convenient for connecting with the corrugated steel plate and for connecting with the bridge deck pavement.

[0017] Preferably, it further includes a downward pulling structure, which is used to connect the lower side of the corrugated steel plate to the main beam body, and the downward pulling structure can provide a downward pulling force for the corrugated steel plate.

[0018] By connecting the lower side of the corrugated steel plate to the main beam body through the downward pulling structure, the main beam body can be used to provide a downward pulling force for the corrugated steel plate, solving the problem of unevenness caused by the upward extrusion deformation of the elastomer when the traditional arch - type seamless expansion joint of railway bridges is applied to highway bridges.

[0019] Preferably, the downward pulling structure includes a plurality of main beam anchoring structures arranged at intervals in the transverse bridge direction. The main beam anchoring structure includes two elastic connectors, a first connector welded to the bottom of the corrugated steel plate and in the middle in the longitudinal bridge direction, and a second connector used to be respectively anchored on the top surface of the main beam bodies on both sides in the longitudinal bridge direction. The two elastic connectors respectively connect the first connector and the second connectors on both sides in the longitudinal bridge direction.

[0020] The two elastic connectors are respectively obliquely connected to the second connectors on the top surfaces of the main beam bodies on both sides and the first connector at the bottom of the corrugated steel plate. The vertical component forces provided by them can limit the upward displacement of the corrugated steel plate, prevent the combined elastomer from being extruded upward due to longitudinal compression in the bridge direction, and the horizontal component forces can limit the longitudinal displacement of the combined elastomer at the mid - span position.

[0021] Preferably, the first connecting member is welded to the center of the corrugated steel plate in the longitudinal bridge direction to ensure symmetric deformation of the combined elastomer in the longitudinal bridge direction.

[0022] In a second aspect, the present invention provides an arch - type seamless expansion joint structure with continuous materials. The top surface of the seamless expansion joint structure is flush, and it includes:

[0023] Two adjacent main beam bodies of the bridge. Opposite installation notches are provided at the ends of the two main beam bodies on both sides of the expansion joint.

[0024] The bridge deck pavement, which includes a bridge deck concrete layer and an asphalt concrete layer. The bridge deck concrete layer is fixed above the main beam body, and the asphalt concrete layer is fixed above the bridge deck concrete layer.

[0025] The arch - type seamless expansion joint module with continuous materials is arranged at the installation notches of the two main beam bodies, and the combined elastomer is arranged between the installation notches on both sides in the longitudinal bridge direction.

[0026] The bridge deck anchoring structure anchors the corresponding side of the combined elastomer in the longitudinal bridge direction into the bridge deck concrete layer of the corresponding side of the bridge deck pavement; and / or, the end plate is anchored to the main beam body.

[0027] For the arch - type seamless expansion joint structure with continuous materials of the present invention, the combined elastomer of the arch - type seamless expansion joint module with continuous materials has good vertical stiffness, preventing excessive vertical deflection deformation of the combined elastomer under vertical wheel loads and causing uneven road surface. The corrugated steel plate of the combined elastomer can enhance the coupling with the upper elastic material, while reducing the deformation constraint on the elastic material, giving the elastic material sufficient deformation coordination and release ability during axial tensile - compression deformation and angular deformation, making it difficult for the corrugated steel plate to separate from the upper elastic material, being able to continuously support the upper elastic material, making the stiffness transition from the bridge deck to the expansion joint smooth, avoiding an increase in vehicle load impact, reducing vehicle jumping when passing through, and improving driving comfort. And the end plate can be anchored into the bridge deck concrete layer of the bridge deck pavement above the main beam body on the corresponding side of the expansion joint through the bridge deck anchoring structure; and / or, the end plate is anchored to the main beam body, making the connection between the combined elastomer and the two - side bridge main body structure not easily damaged and having a longer service life.

[0028] Preferably, a covering layer is provided on the top of the arch - type seamless expansion joint module with continuous materials, and the top surface of the covering layer is flush with the top surface of the bridge deck pavement. The covering layer is laid on the combined elastomer and serves as the direct acting layer for wheel loads, protecting the elastic material from wear and improving the service life of the seamless expansion joint structure.

[0029] And / or, the top surface height of the end plate is 1 cm - 2 cm smaller than the top surface height of the bridge deck concrete layer, which can reduce the connection surface area between the elastic material and the bridge deck concrete layer, and can prevent the connection surface from becoming a weak surface and being damaged first under tensile and compressive deformations, thereby causing vehicle jumping and affecting driving comfort.

[0030] Preferably, when there is a covering layer on the top of the continuously-material arch-type seamless expansion joint module, the interface between the covering layer and the asphalt concrete layer is offset 10 cm - 20 cm towards the sides where the two main beam bodies are located respectively, with the boundaries of the combined elastomer on both sides in the longitudinal bridge direction as the reference, so as to prevent the interface between the covering layer and the asphalt concrete layer from being in the same cross-section as the connection surface between the combined elastomer and the bridge deck concrete layer, resulting in the cross-section becoming a weak cross-section under the action of vehicle loads due to sudden stiffness change and complex connection, and affecting the durability of the seamless expansion joint structure.

[0031] In a third aspect, the present invention provides a construction method for a continuously-material arch-type seamless expansion joint structure, using the described continuously-material arch-type seamless expansion joint structure, with a covering layer provided on the top of the continuously-material arch-type seamless expansion joint module; the continuously-material arch-type seamless expansion joint module further includes a downward-pulling structure, and the downward-pulling structure includes a plurality of main beam anchoring structures arranged at intervals in the transverse bridge direction, and each main beam anchoring structure includes two elastic connectors, a first connector welded to the bottom of the corrugated steel plate and in the middle in the longitudinal bridge direction, and a second connector used for respectively anchoring on the top surfaces of the main beam bodies on both sides in the longitudinal bridge direction, and the two elastic connectors respectively connect the first connector and the second connectors on both sides in the longitudinal bridge direction;

[0032] The construction method includes the following steps:

[0033] S1: Reserve an installation notch at the top of one end of the main beam body where the continuously-material arch-type seamless expansion joint module needs to be installed, and embed the second connector on the top surface of the main beam body in the installation notch;

[0034] Prefabricate the corrugated steel plate and the end plate in the factory so that the corrugated steel plate and the end plate form an integral expansion plate, pour elastic material between the corrugated steel plate and the end plate, and let it stand until it completely solidifies to form a combined elastomer, weld the bridge deck anchoring structure on the end plate, and weld the first connector at the bottom of the corrugated steel plate;

[0035] S2: Transport the combined elastomer, the bridge deck anchoring structure and the first connector as a whole to the construction site, and place them at the position of the installation notch reserved on the main beam body;

[0036] S3: Connect the elastic connectors between the second connector and the first connector;

[0037] S4: Pour the bridge deck concrete layer, the asphalt concrete layer and the covering layer above the main beam body in sequence, and the construction is completed.

[0038] The construction method of the continuous arch - type seamless expansion joint structure of the material described in the present invention is to construct the continuous arch - type seamless expansion joint module of the material at the position of the installation notch reserved on the main beam body by means of prefabrication and installation. Its construction accuracy is high, and by successively casting the bridge deck concrete layer, asphalt concrete layer and covering layer, the stability of the connection and the accuracy of each contact surface can be ensured, which is beneficial to ensuring the flatness of the top surface of the seamless expansion joint structure and is beneficial to driving.

[0039] In the fourth aspect, the present invention provides a bridge, which includes the above - mentioned continuous arch - type seamless expansion joint structure of the material. The bridge structure is safer, the road surface arranged on the bridge is smoother, the vehicle passage is smoother, and driving is safer.

[0040] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0041] 1. The present invention provides a continuous arch - type seamless expansion joint module of the material. The corrugated steel plate is arranged in an arch shape upward in the longitudinal bridge direction so as to convert the vertical load from the external surface force into the in - plane axial force, improve the vertical stiffness of the composite elastomer, and prevent excessive vertical deflection deformation of the composite elastomer under the vertical load; the corrugated steel plate can enhance the coupling with the upper elastic material, and at the same time reduce the deformation constraint on the elastic material, giving the elastic material sufficient deformation coordination and release ability during axial tensile and compressive deformation and angular deformation, so that the corrugated steel plate and the upper elastic material are not easily separated, and can continuously support the upper elastic material, making the stiffness transition from the bridge deck to the expansion joint smooth, avoiding the increase of vehicle load impact, reducing the vehicle bounce when passing through, and improving driving comfort; and the end plate can be anchored to the bridge deck paving of the main beam body on the corresponding side of the expansion joint through the bridge deck anchoring structure, and / or, the end plate (303) can be anchored to the main beam body (101), so that the connection between the composite elastomer and the two - side bridge main body structure is not easily damaged and has a longer service life.

[0042] 2. The present invention provides a continuous arch - type seamless expansion joint structure of the material, which improves the vertical stiffness of the composite elastomer, and prevents the excessive vertical deflection deformation of the composite elastomer under the vertical wheel load from causing road surface unevenness; the corrugated steel plate can enhance the coupling with the upper elastic material, and at the same time reduce the deformation constraint on the elastic material, giving the elastic material sufficient deformation coordination and release ability during axial tensile and compressive deformation and angular deformation, so that the corrugated steel plate and the upper elastic material are not easily separated, and can continuously support the upper elastic material, making the stiffness transition from the bridge deck to the expansion joint smooth, avoiding the increase of vehicle load impact, reducing the vehicle bounce when passing through, and improving driving comfort; and the connection between the end plate of the composite elastomer and the two - side bridge main body structure is not easily damaged and has a longer service life.

[0043] 3. The present invention provides a construction method for a continuous material arch - type seamless expansion joint structure. By using a prefabrication and installation method, a continuous material arch - type seamless expansion joint module is constructed at the installation notch position reserved on the main beam body. Its construction accuracy is high, and by successively casting the bridge deck concrete layer, asphalt concrete layer and covering layer, the stability of the connection and the accuracy of each contact surface can be ensured, which is conducive to ensuring the flatness of the top surface of the seamless expansion joint structure and is beneficial to vehicle driving.

[0044] 4. The present invention provides a bridge, with a safer bridge structure, a smoother road surface arranged on the bridge, smoother vehicle passage and safer driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 is a schematic structural diagram of a traditional arch - type seamless expansion joint of a railway bridge in the prior art;

[0046] Figure 2 is a three - dimensional schematic diagram of a continuous material arch - type seamless expansion joint structure (partially removed to show the structural layering);

[0047] Figure 3 is a longitudinal sectional view of a continuous material arch - type seamless expansion joint structure;

[0048] Figure 4 is a horizontal layout schematic diagram of a perforated steel plate;

[0049] Figure 5 is a connection schematic diagram of a corrugated steel plate and end plates on both longitudinal bridge sides.

[0050] Reference numerals in the figures: 101, main beam body; 102, expansion joint; 103, installation notch; 2, bridge deck pavement; 201, bridge deck concrete layer; 202, asphalt concrete layer; 3, combined elastomer; 300, arched steel plate; 301, corrugated steel plate; 302, elastic material; 303, end plate; 401, perforated steel plate; 5, main beam anchoring structure; 501, first connecting piece; 502, second connecting piece; 503, elastic connecting piece; 601, covering layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0051] The following further describes the present invention in detail with reference to specific embodiments. However, this should not be construed as limiting the scope of the above - mentioned subject matter of the present invention to the following embodiments. All technologies implemented based on the content of the present invention belong to the scope of the present invention.

[0052] Unless otherwise specified, in the description of the specific embodiments of the present invention, the expression terms indicating the orientation or positional relationship such as "upper", "lower", "left", "right", "center", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the invention product / device / installation is commonly used. These terms of orientation or positional relationship are only for the convenience of describing the solution of the present invention or simplifying the description in the specific embodiments, facilitating technicians to quickly understand the solution, rather than indicating or implying that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, it should not be construed as a limitation to the present invention.

[0053] In addition, if terms such as "horizontal", "vertical", "hanging", "parallel", etc. appear, it does not mean that the corresponding device / component / element is required to be absolutely horizontal or vertical or hanging or parallel, but it can be slightly inclined or have a deviation. For example, "horizontal" only means that its direction is relatively more horizontal compared to "vertical", and does not mean that the structure must be completely horizontal, but it can be slightly inclined. Or, it can be simply understood that the corresponding device / component / element is arranged in the directions of "horizontal", "vertical", "hanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still perform its function in the solution of the present invention.

[0054] In addition, the expressions such as "first", "second", "third", etc. appearing in the terms are only used to distinguish the description of the same or similar components, and should not be understood as emphasizing or implying the relative importance of a specific component.

[0055] In addition, in the description of the embodiments of the present invention, "several", "multiple", "a number of" represent at least 2. It can be any situation such as 2, 3, 4, 5, 6, 7, 8, 9, etc., or even more than 9.

[0056] In addition, in the description of the technical solution of the present invention, unless otherwise clearly specified / defined / limited, where terms such as "set", "installed", "connected", "connected to", "provided with", "laid", "arranged" appear, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be connection means commonly used in the art such as welding, riveting, bolting, screw connection, etc. This connection can be a mechanical connection, an electrical connection or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements.

[0057] Example 1

[0058] As shown Figures 2 - 5 in the figure, a continuous arch - type seamless expansion joint module for materials includes: a combined elastomer 3 and a bridge deck anchoring structure. The combined elastomer 3 includes an expansion plate and an elastic material 302. The expansion plate includes a corrugated steel plate 301 in the middle in the longitudinal bridge direction and end plates 303 arranged at both ends in the longitudinal bridge direction.

[0059] As shown Figures 2 - 5 in the figure, the left - right direction is the longitudinal bridge direction; Figure 4 in the figure, the up - down direction is the transverse bridge direction.

[0060] As shown Figure 2 and Figure 3 in the figure, the elastic material 302 is coupled directly above the corrugated steel plate 301. The corrugated steel plate 301 is respectively connected with the end plates 303 at both ends in the longitudinal bridge direction. The end plates 303 at both ends in the longitudinal bridge direction respectively adhere to both sides of the elastic material 302 in the longitudinal bridge direction, so that the corrugated steel plate 301, the end plates 303 respectively connected to both ends of the corrugated steel plate 301 in the longitudinal bridge direction form an integral expansion plate, and the elastic material 302 between the corrugated steel plate 301 and the end plates 303 together form the combined elastomer 3, which can bear force together.

[0061] The corrugated steel plate 301 refers to a steel plate that is rolled into a corrugated or wavy shape in one direction, such that there are significant differences in the axial tension-compression stiffness and flexural stiffness of the steel plate in two orthogonal directions, including but not limited to the styles of the corrugated steel plates used in the embodiments herein. The corrugation bending direction of the corrugated steel plate 301 is arranged along the longitudinal bridge direction, that is, the axial tension-compression stiffness and flexural stiffness in the longitudinal bridge direction are less than those in the transverse bridge direction, and it can cooperate with the elastic material 302 to deform together; the corrugated steel plate 301 is arranged in an arch shape upward in the longitudinal bridge direction, so as to convert the vertical load from an external surface force into an in-plane axial force, improve the vertical stiffness of the composite elastic body, and prevent excessive vertical deflection deformation of the composite elastic body under the vertical load; the corrugated steel plate 301 can enhance the coupling with the upper elastic material, while reducing the deformation constraint on the elastic material, giving the elastic material sufficient deformation coordination and release ability during axial tension-compression deformation and angular deformation, such that the corrugated steel plate 301 and the upper elastic material are not easily separated, and can continuously support the upper elastic material, making the stiffness transition from the bridge deck to the expansion joint smooth, avoiding an increase in the impact of vehicle loads, reducing vehicle bounce when passing through, and improving driving comfort. Flat plate regions with sufficient lengths are reserved on both sides of the corrugated steel plate 301 in the longitudinal bridge direction and are bent into vertical plates as end plates. The vertical plates of the end plates serve both as the side formwork for pouring the elastic material and as the connection surface for connecting or welding to the bridge deck anchoring structure. Among them, the end plates are used to anchor the corresponding side of the bridge main structure. The bridge main structure refers to the main girder body 101 and the bridge deck pavement arranged above the main girder body 101. The bridge deck pavement includes a bridge deck concrete layer 201 located above the main girder body 101 and an asphalt concrete layer 202 located above the bridge deck concrete layer 201.

[0062] In an alternative embodiment, the elastic material 302 is polyurethane, polyurea grouting liquid, or rubber, which has low stiffness, high elasticity, and good bonding performance with concrete and steel. For an 80-type expansion joint, its hardness is 20A - 50A (Shore), and the tensile elastic modulus ≤ 0.6 MPa; for a 160-type expansion joint, its hardness is 20A - 30A (Shore), and the tensile elastic modulus ≤ 0.5 MPa, ensuring that the formed composite elastic body has a sufficiently low stiffness to meet the deformation requirements under the design load. The tensile strength of the elastic material 302 ≥ 3.0 MPa, the bonding strength ≥ 1.5 MPa, and the elongation at break ≥ 900%, ensuring that under the ultimate deformation amount, the expansion joint structure will not cause debonding failure at the connection surface between the elastic material and steel or concrete, and the elastic material will not crack due to the internal force being greater than the tensile strength.

[0063] In an alternative embodiment, as Figure 5As shown, the wave height d1 of the corrugations of the corrugated steel plate 301 is 5 mm - 20 mm, and the wave pitch d2 of the corrugations of the corrugated steel plate 301 is 10 mm - 25 mm; under the condition of ensuring processing accuracy, a corrugation with a higher wave height and a smaller wave pitch is preferably adopted as much as possible to increase the coupling area with the elastic material, enhance the coordinated deformation ability, and provide a larger deformation release space for the elastic material.

[0064] In an alternative embodiment, as Figure 5 shown, the two end plates 303 on both sides are L-shaped and arranged opposite to each other. The L-shape includes a horizontal plate and a vertical plate. The horizontal plate is located below the vertical plate. The horizontal plates of the two L-shapes are arranged opposite to each other. The horizontal plates of the two end plates 303 on both sides are connected to the wave troughs at the corresponding ends of the corrugated steel plate 301 in the longitudinal bridge direction, which is convenient for connecting with the corrugated steel plate 301 and also convenient for connecting with the bridge deck pavement.

[0065] In an alternative embodiment, the thickness of the corrugated steel plate 301 is 0.5 mm - 3 mm. The corrugated steel plate 301 has a relatively thin thickness so that the corrugated area coupled with the elastic material 302 has a smaller structural stiffness and better deformation coordination ability.

[0066] In this embodiment, as Figure 2 and Figure 3 shown, the end plate 303 can be anchored to the bridge deck concrete layer 201 of the bridge deck pavement 2 of the main girder 101 on the corresponding side of the expansion joint 102 through the bridge deck anchoring structure, and / or the end plate 303 can be anchored to the main girder 101; that is, the main function of the end plate is to anchor the corresponding side of the bridge main structure. When the main girder 101 of the bridge main structure is a reinforced concrete structure, the end plate 303 can be anchored to the bridge deck concrete layer 201 of the bridge deck pavement 2 of the main girder 101 on the corresponding side of the expansion joint 102 only through the bridge deck anchoring structure; when the main girder 101 of the bridge main structure is a steel structure, the end plate 303 can be anchored to the bridge deck concrete layer 201 of the bridge deck pavement 2 of the main girder 101 on the corresponding side of the expansion joint 102 through the bridge deck anchoring structure, and the end plate 303 is directly or indirectly welded to the main girder 101; when the main girder 101 of the bridge main structure is a steel structure, it can also be directly or indirectly welded to the main girder 101 only through the end plate 303; these connection methods utilize the end plate to cooperate to realize the anchoring of the combined elastic body and the bridge main structure, and the connection between the two is not easily damaged and has a longer service life.

[0067] In an alternative embodiment, as Figures 2 - 4As shown, the bridge deck anchoring structure includes a number of perforated steel plates 401 welded to the side of the end plate 303 facing away from the elastic material 302. The thickness of the perforated steel plate 401 is 2 mm - 6 mm, and the diameter of the opening is 2 cm - 4 cm. The perforated steel plates 401 are arranged along the longitudinal direction of the bridge. The perforated steel plates 401 welded to each end plate 303 are distributed at intervals along the transverse direction of the bridge. The perforated steel plates 401 are used to be buried in the bridge deck concrete layer 201 of the corresponding side on both longitudinal sides of the expansion joint 102. The shear key formed by the concrete in the openings of the perforated steel plates 401 is used to form the anchoring connection between the arch-type seamless expansion joint module with continuous materials and the corresponding side of the bridge deck concrete layer 201, strengthening the anchoring of the combined elastomer and the bridge deck paving, preventing the connection surface between the bridge deck paving and the combined elastomer from becoming a weak tensile surface, and improving the durability of the seamless expansion joint structure.

[0068] Further, as Figure 4 shown, the width of the perforated steel plate 401 in the longitudinal direction of the bridge is set to at least two types. The perforated steel plates 401 with different widths in the longitudinal direction of the bridge are arranged alternately along the transverse direction of the end plate 303. The perforated steel plates are provided in a variety of sizes according to different widths in the longitudinal direction of the bridge and different numbers of openings. The width of the perforated steel plate in the longitudinal direction of the bridge is set to 2 types or more, and different sizes are placed alternately in the transverse direction, preventing stress concentration from occurring in the bridge deck concrete layer due to sudden changes in stiffness, resulting in the cross-section where the edge of the perforated steel plate is located becoming a vulnerable weak surface, affecting the service life of the seamless expansion joint structure and the riding comfort; and ensuring the uniform transition of the cross-section stiffness of the bridge deck concrete layer along the longitudinal direction of the bridge, preventing the appearance of vulnerable weak surfaces due to sudden changes in stiffness and affecting the structural durability and driving safety. And as Figure 4 shown, the end plates 303 on both the left and right sides of the expansion joint 102 are also arranged staggeredly in the transverse direction.

[0069] In an optional implementation manner, the thickness of the end plate 303 is different from that of the corrugated steel plate 301. The thickness of the end plate 303 is 3 mm - 6 mm. The end plates 303 on both longitudinal sides are thicker, providing sufficient stiffness for the side formwork for pouring the elastic material, and preventing it from being melted and burned through due to heat concentration during welding with the perforated steel plate, reducing the welding difficulty and improving the welding quality.

[0070] In an optional implementation manner, as Figure 2 and Figure 3 shown, the arch-type seamless expansion joint module with continuous materials further includes a downward pull structure. The lower side of the corrugated steel plate 301 is connected to the main beam body 101 through the downward pull structure, which can utilize the main beam body 101 to provide a downward pulling force for the corrugated steel plate 301, solving the problem of unevenness caused by the upward extrusion deformation of the elastomer when the traditional arch-type seamless expansion joint of railway bridges is applied to highway bridges.

[0071] Further, as Figure 2 andFigure 3 As shown, the pull-down structure includes a plurality of main beam anchoring structures 5 arranged at intervals along the transverse bridge direction, and the main beam anchoring structure 5 includes two elastic connectors 503, a first connector 501 welded at the bottom of the corrugated steel plate 301 and in the middle of the longitudinal bridge direction, and a second connector 502 for anchoring at the top surface of the main beam body 101 on both sides of the longitudinal bridge direction. In an optional embodiment, the bottom of the second connector 502 on the top surface of the main beam body is pre-buried in the installation notches of the main beam bodies on both sides, and is welded and connected with the steel bars in the installation notches to achieve anchoring. The two elastic connectors 503 respectively connect the first connector 501 and the second connector 502 on both sides of the longitudinal bridge direction, that is, the two elastic connectors respectively obliquely connect the second connector 502 on the top surface of the main beam body 101 on both sides and the first connector 501 at the bottom of the corrugated steel plate. The vertical component force provided by the elastic connector can limit the upward displacement of the corrugated steel plate, prevent the combined elastic body from being extruded and deformed upward due to the longitudinal bridge pressure, and the horizontal component force can limit the longitudinal bridge displacement of the combined elastic body at the mid-span position. Furthermore, the first connecting member 501 is welded to the center of the corrugated steel plate 301 in the longitudinal bridge direction to ensure symmetrical deformation of the combined elastomer in the longitudinal bridge direction.

[0072] Furthermore, the elastic connecting member 503 may be an elastic connecting rod, such as a spring rod.

[0073] Example 2

[0074] The present invention provides an arch-type seamless expansion joint structure with continuous materials, such as Figure 2 and Figure 3 As shown, the top surface of the seamless expansion joint structure is flush, that is, the bridge deck road surface is flush, including: two adjacent main beam sections 101 of the bridge, the bridge deck pavement 2 and the arched seamless expansion joint module with continuous materials described in Example 1. The arched seamless expansion joint module with continuous materials described in Example 1 includes a combined elastomer 3 and a bridge deck anchoring structure. The combined elastomer 3 is composed of a corrugated steel plate 301, an elastic material 302 and an end plate 303.

[0075] The main beam body 101 can be any form of concrete main beam or steel structure main beam. Before the main beam body is cast or welded, a mounting notch 103 needs to be reserved on the top of the beam to place the combined elastic body 3, that is, the ends of the two sections of the main beam body 101 located on both sides of the expansion joint 102 are provided with opposite mounting notches 103;

[0076] The bridge deck pavement 2 is fixed above the top surface of the main beam body 101; in an optional embodiment, Figure 2 and Figure 3As shown in the figure, the bridge deck pavement 2 is arranged on the top surface of the main girder body in the non-expansion joint area, which is the same as the conventional structure of highway bridges. From bottom to top, there are a 201 bridge deck concrete layer with a thickness of 8 cm - 20 cm and a 202 asphalt concrete layer with a thickness of 5 cm - 10 cm, so that the bridge deck concrete layer 201 is fixed above the main girder body 101, and the asphalt concrete layer 202 is fixed above the bridge deck concrete layer 201;

[0077] The arch - type seamless expansion joint module with continuous materials is arranged at the installation notch 103 of the two main girder bodies 101. The combined elastomer 3 is arranged between the installation notches 103 on both sides in the longitudinal bridge direction. The bridge deck anchoring structure anchors the corresponding side of the combined elastomer 3 in the longitudinal bridge direction to the bridge deck concrete layer 201 of the corresponding side of the bridge deck pavement 2, and / or the end plate 303 can be anchored to the main girder body 101, so that the connection between the combined elastomer and the bridge main body structures on both sides is not easily damaged and has a longer service life.

[0078] In this embodiment, the top surface of the bridge deck pavement 2 can be flush with the top surface of the elastic material 302 of the combined elastomer 3, so that the top surface of the seamless expansion joint structure is flush.

[0079] In an optional implementation manner, a covering layer 601 is provided on the top of the arch - type seamless expansion joint module with continuous materials. The top surface of the covering layer 601 is flush with the top surface of the bridge deck pavement 2, so that the top surface of the seamless expansion joint structure is flush. The covering layer 601 is laid on the combined elastomer, and wear - resistant materials with deformation capabilities similar to those of the elastic material 302, such as modified asphalt and polyurethane asphalt, can be selected as the direct acting layer for wheel loads to protect the elastic material 302 from wear and improve the service life of the seamless expansion joint structure. After the covering layer 601 is cured, its elastic modulus is equivalent to that of the elastic material 302, ensuring that the two can deform coordinately. Its tensile, compressive, and shear strengths at normal temperature are not less than those of the asphalt concrete layers 202 on both sides, and the bonding strength ≥ 1.5 MPa to ensure that the connection surface between the two does not undergo tensile debonding failure, and the durability performance of the covering layer 601 under long - term loads is not inferior to that of the asphalt concrete layer 202. As Figure 3 As shown in the figure, when the bridge deck pavement 2 includes the bridge deck concrete layer 201 and the asphalt concrete layer 202, the top surface height of the end plate 303 is 1 cm - 2 cm less than the top surface height of the bridge deck concrete layer 201, which can reduce the connection surface area between the elastic material 302 and the bridge deck concrete layer 201, and can avoid this connection surface from becoming a weak surface and being damaged first under tensile and compressive deformations, thus causing the vehicle jumping phenomenon and affecting the driving comfort. As Figure 3As shown in the figure, when there is a covering layer 601 on the top of the continuous arch type seamless expansion joint module of the material, the interface between the covering layer 601 and the asphalt concrete layer 202 offsets 10 cm - 20 cm respectively towards the sides where the two main girder bodies 101 are located, taking the boundaries of the combined elastomer 3 on both sides in the longitudinal bridge direction as the reference. This is to avoid the interface between the covering layer 601 and the asphalt concrete layer 202 being in the same cross-section as the connection surface between the combined elastomer and the bridge deck concrete layer 201, which may cause the cross-section to become a weak section under the action of vehicle loads due to sudden changes in stiffness and complex connections, thus affecting the durability of the seamless expansion joint structure.

[0080] As Figure 3 shown in the figure, the bridge deck concrete layer 201 is located above the top surface of the part of the main girder body 101 where the installation notch 103 is not provided. The top surface of the bridge deck concrete layer 201 is flush with the top surface of the elastic material 302 of the combined elastomer 3, and the side surface of the bridge deck concrete layer 201 is in contact with the side surface of the combined elastomer 3. The side surface of the combined elastomer 3 is in contact with the side surface of the installation notch 103; the asphalt concrete layer 202 is located above the top surface of the bridge deck concrete layer 201, and there is no asphalt concrete layer 202 above the top surface of the bridge deck concrete layer 201 near the expansion joint 102. The covering layer 601 covers the top surfaces of the bridge deck concrete layers 201 near the expansion joint 102 on both sides in the longitudinal bridge direction and covers the elastic material 302. The two sides in the longitudinal bridge direction of the covering layer 601 are in contact with the side surfaces of the asphalt concrete layer 202, and the top surface of the covering layer 601 is flush with the top surface of the asphalt concrete layer 202, making the overall integrity, durability and smoothness of the bridge pavement of the continuous arch type seamless expansion joint structure of the material good.

[0081] In the continuous arch type seamless expansion joint structure of the material described in this embodiment, the corrugated steel plate 301 is arched upwards in the longitudinal bridge direction so as to convert the vertical wheel load from surface external force into in-plane axial force, improve the vertical stiffness of the combined elastomer, and prevent excessive vertical deflection deformation of the combined elastomer under the vertical wheel load, which may cause unevenness of the road surface; the corrugated steel plate 301 can enhance the coupling with the upper elastic material, and at the same time reduce the deformation constraint on the elastic material, giving the elastic material sufficient deformation coordination and release ability during axial tension and compression deformation and angular deformation, so that the corrugated steel plate 301 and the upper elastic material are not easily separated, and can continuously support the upper elastic material, making the stiffness transition from the bridge deck to the expansion joint smooth, avoiding the increase of vehicle load impact, reducing the vehicle bounce when passing through, and improving the driving comfort; and the end plate 303 can be anchored to the bridge deck concrete layer 201 of the bridge deck pavement 2 of the main girder body 101 on the corresponding side of the expansion joint 102 through the bridge deck anchoring structure, and the connection between the two is not easily damaged, and the service life is longer.

[0082] By replacing the arched steel bottom plate of the prior art with a corrugated steel plate and setting the main beam anchoring structure 5 with an elastic connecting piece 503 capable of providing tensile force, the axial tensile and compressive and rotational deformation capabilities of the composite elastic body are improved. While ensuring the vertical stiffness, the problem that the elastic body extrudes upward and deforms, resulting in the uneven top surface of the seamless expansion joint structure, which occurs when the traditional arched seamless expansion joint of railway bridges is applied to highway bridges, is solved. By setting the bridge deck anchoring structure with perforated steel plates, the anchoring of the elastic body and the bridge deck is strengthened, the connection surface between the bridge deck concrete layer and the composite elastic body is prevented from becoming a weak tensile surface, and the durability of the seamless expansion joint structure is improved.

[0083] Embodiment 3

[0084] A construction method for a continuous material arched seamless expansion joint structure, using the continuous material arched seamless expansion joint structure described in Embodiment 2, the construction method includes the following steps:

[0085] S1: Reserve an installation notch 103 at the top of one end of the main beam body 101 where the continuous material arched seamless expansion joint module needs to be installed, and embed the second connecting piece 502 on the top surface of the main beam body 101 in the installation notch 103;

[0086] Prefabricate the corrugated steel plate 301 and the end plate 303 in the factory, so that the corrugated steel plate 301 and the end plate 303 form an integral expansion plate, pour the elastic material 302 between the corrugated steel plate 301 and the end plate 303, and let it stand until completely solidified to form the composite elastic body 3, and weld the bridge deck anchoring structure on the end plate 303, and weld the first connecting piece 501 at the bottom of the corrugated steel plate 301;

[0087] Optionally, reserve an installation notch at the top of one end of the main beam body 101 where the expansion joint module needs to be installed, and embed the second connecting piece 502 on the top surface of the main beam body 101. The second connecting piece 502 can be a connecting plate structure, and reference can be made to Figure 4 Arrangement;

[0088] Then prefabricate the corrugated steel plate 301 and the end plate 303 in the factory. The corrugated steel plate 301 and the end plate 303 can be prefabricated integrally, that is, first process the corrugated steel plate 301 in the middle of a steel plate, and then process the end plates 303 on both longitudinal bridge sides of the corrugated steel plate 301 to form an expansion plate. Then, use the corrugated steel plate 301 and the end plate 303 as the bottom formwork and side formwork, and add other formworks, so that the elastic material 302 can be poured between the corrugated steel plate 301 and the end plate 303. The elastic material stands until completely solidified, so that the corrugated steel plate 301, the end plate 303 and the elastic material 302 form the composite elastic body 3;

[0089] Then, weld the bridge deck anchoring structures on the outer sides of the vertical plates of the end plates 303 on both longitudinal bridge sides of the corrugated steel plate 301. The bridge deck anchoring structures are several perforated steel plates 401; and weld several first connecting members 501 at the bottom of the corrugated steel plate 301. The first connecting members 501 can also be connecting plate structures.

[0090] S2: Transport the combined elastomer 3, the bridge deck anchoring structures, and the first connecting members 501 as a whole to the construction site and place them at the position of the installation notch 103 reserved on the main beam body 101.

[0091] S3: Connect the elastic connecting member 503 between the second connecting member 502 and the first connecting member 501, so as to generate a vertically downward tensile component and a horizontally longitudinal bridge-side component on the corrugated steel plate 301.

[0092] S4: Pour the bridge deck concrete layer 201, the asphalt concrete layer 202, and the covering layer 601 above the main beam body 101 in sequence, and the construction is completed. After pouring the bridge deck concrete layer 201, the perforated steel plates 401 are buried longitudinally in the bridge deck concrete layer; since one longitudinal end of the perforated steel plate 401 is welded to the end plates at both ends of the corrugated steel plate, the combined elastomer is anchored to the bridge deck concrete layer through the concrete shear keys formed at the openings and the welded seams.

[0093] The construction method of the continuous material arch - type seamless expansion joint structure of the present invention uses the prefabrication and installation method to construct the continuous material arch - type seamless expansion joint module at the position of the installation notch 103 reserved on the main beam body 101. Its construction accuracy is high, and by pouring the bridge deck concrete layer 201, the asphalt concrete layer 202, and the covering layer 601 in sequence, the stability of the connection and the accuracy of each contact surface can be ensured, and it is beneficial to ensure the flatness of the top surface of the seamless expansion joint structure, which is beneficial to vehicle driving.

[0094] Embodiment 4

[0095] A bridge includes a continuous material arch - type seamless expansion joint structure described in Embodiment 2. The bridge structure is safer, the road surface arranged on the bridge is smoother, the vehicle passage is more unobstructed, and driving is safer.

[0096] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An arch - type seamless expansion joint module with continuous materials, characterized in that, Comprising: A combined elastomer (3) and a bridge deck anchoring structure, wherein the combined elastomer (3) includes a telescopic plate and an elastic material (302), the telescopic plate includes a corrugated steel plate (301) in the middle in the longitudinal bridge direction and end plates (303) arranged at both ends in the longitudinal bridge direction; the corrugation bending direction of the corrugated steel plate (301) is arranged along the longitudinal bridge direction, and the corrugated steel plate (301) is arched upward in the longitudinal bridge direction; the elastic material (302) is coupled directly above the corrugated steel plate (301) and is located between the end plates (303) at both ends in the longitudinal bridge direction, and the end plates (303) at both ends in the longitudinal bridge direction are respectively attached to both sides of the elastic material (302) in the longitudinal bridge direction. The end plate (303) can be anchored to the bridge deck concrete layer (201) of the bridge deck paving (2) of the main beam body (101) on the corresponding side of the expansion joint (102) through the bridge deck anchoring structure; and / or, the end plate (303) can be anchored to the main beam body (101).

2. A continuous material arch - type seamless expansion joint module according to claim 1, characterized in that, The bridge deck anchoring structure includes a plurality of perforated steel plates (401) welded to the side of the end plate (303) facing away from the elastic material (302), the perforated steel plates (401) are arranged along the longitudinal bridge direction, and the perforated steel plates (401) welded to each end plate (303) are distributed at intervals in the transverse bridge direction. The perforated steel plates (401) are used to be buried in the bridge deck concrete layer (201) of the corresponding side of the expansion joint (102) on both sides in the longitudinal bridge direction, and the shear keys formed by the concrete in the openings of the perforated steel plates (401) are used to form the anchoring connection between the arch - type seamless expansion joint module with continuous materials and the corresponding side bridge deck concrete layer (201).

3. The arch - type seamless expansion joint module with continuous materials according to claim 2, characterized in that, The width of the perforated steel plates (401) in the longitudinal bridge direction is at least set in two types, and the perforated steel plates (401) with different widths in the longitudinal bridge direction are arranged alternately in the transverse bridge direction on the end plate (303).

4. A continuous material arch - type seamless expansion joint module according to claim 1, characterized in that, The wave height d1 of the corrugations of the corrugated steel plate (301) is 5 mm - 20 mm, and the wave pitch d2 of the corrugations of the corrugated steel plate (301) is 10 mm - 25 mm; and / or, the thickness of the corrugated steel plate (301) is 0.5 mm - 3 mm, and the thickness of the end plate (303) is 3 mm - 6 mm; and / or, the elastic material (302) is polyurethane, polyurea grouting liquid or rubber; and / or, the two side end plates (303) are L - shaped and arranged oppositely. The L - shape includes a horizontal plate and a vertical plate, the horizontal plate is located below the vertical plate, the horizontal plates of the two L - shapes are arranged oppositely, and the horizontal plates of the two side end plates (303) are connected to the wave trough bottom of the corresponding end of the corrugated steel plate (301) in the longitudinal bridge direction.

5. A continuous arch seamless expansion joint module made of the material according to any one of claims 1-4, characterized in that It further includes a downward pulling structure, the downward pulling structure is used to connect to the lower side of the corrugated steel plate (301) and the main beam body (101), and the downward pulling structure can provide a downward pulling force for the corrugated steel plate (301).

6. The arch - type seamless expansion joint module with continuous materials according to claim 5, characterized in that, The drop-down structure includes a number of main girder anchoring structures (5) arranged at intervals along the transverse direction of the bridge. The main girder anchoring structure (5) includes two elastic connectors (503), a first connector (501) welded to the bottom of the corrugated steel plate (301) and in the middle of the longitudinal direction of the bridge, and a second connector (502) for respectively anchoring to the top surfaces of the main girder bodies (101) on both sides in the longitudinal direction of the bridge. The two elastic connectors (503) respectively connect the first connector (501) and the second connectors (502) on both sides in the longitudinal direction of the bridge.

7. A continuously material arch - type seamless expansion joint module according to claim 6, characterized in that, The first connector (501) is welded to the center of the corrugated steel plate (301) in the longitudinal direction of the bridge.

8. An arch - type seamless expansion joint structure with continuous materials, the top surface of the seamless expansion joint structure is flush. It is characterized in that, Comprising: Two adjacent main girder bodies (101) of the bridge. Opposite mounting notches (103) are provided at the ends of the two main girder bodies (101) on both sides of the expansion joint (102). The bridge deck paving (2) includes a bridge deck concrete layer (201) and an asphalt concrete layer (202). The bridge deck concrete layer (201) is fixed above the main girder body (101), and the asphalt concrete layer (202) is fixed above the bridge deck concrete layer (201). The continuous material arch-type seamless expansion joint module as described in any one of claims 1-7. The continuous material arch-type seamless expansion joint module is arranged at the mounting notches (103) of the two main girder bodies (101), and the combined elastomer (3) is arranged between the mounting notches (103) on both sides in the longitudinal direction of the bridge. The bridge deck anchoring structure anchors the corresponding side of the combined elastomer (3) in the longitudinal direction into the bridge deck concrete layer (201) of the corresponding side of the bridge deck paving (2); and / or, the end plate (303) is anchored to the main girder body (101).

9. A continuous material arch - type seamless expansion joint structure according to claim 8, characterized in that, A covering layer (601) is provided on the top of the continuous material arch-type seamless expansion joint module, and the top surface of the covering layer (601) is flush with the top surface of the bridge deck paving (2). And / or The top surface height of the end plate (303) is 1 cm - 2 cm less than the top surface height of the bridge deck concrete layer (201).

10. A continuous material arch - type seamless expansion joint structure according to claim 9, characterized in that, When a covering layer (601) is provided on the top of the continuous material arch-type seamless expansion joint module, the interface between the covering layer (601) and the asphalt concrete layer (202) is offset 10 cm - 20 cm respectively towards the sides where the two main girder bodies (101) are located with the boundaries of the combined elastomer (3) on both sides in the longitudinal direction as the reference.

11. A construction method for an arch - type seamless expansion joint structure with continuous materials, characterized in that, Adopting a continuous material arch-type seamless expansion joint structure as described in any one of claims 8-10. A covering layer (601) is provided on the top of the continuous material arch-type seamless expansion joint module; the continuous material arch-type seamless expansion joint module further includes a drop-down structure. The drop-down structure includes a number of main girder anchoring structures (5) arranged at intervals along the transverse direction of the bridge. The main girder anchoring structure (5) includes two elastic connectors (503), a first connector (501) welded to the bottom of the corrugated steel plate (301) and in the middle of the longitudinal direction of the bridge, and a second connector (502) for respectively anchoring to the top surfaces of the main girder bodies (101) on both sides in the longitudinal direction of the bridge. The two elastic connectors (503) respectively connect the first connector (501) and the second connectors (502) on both sides in the longitudinal direction of the bridge. The construction method comprises the following steps: S1: Reserve an installation notch (103) at the top of one end of the main beam body (101) where a continuously installed material arch - type seamless expansion joint module is required, and embed a second connector (502) on the top surface of the main beam body (101) in the installation notch (103); Prefabricate a corrugated steel plate (301) and an end plate (303) in a factory to make the corrugated steel plate (301) and the end plate (303) an integral expansion plate. Pour an elastic material (302) between the corrugated steel plate (301) and the end plate (303), let it stand until completely solidified to form a combined elastic body (3), weld the bridge deck anchoring structure on the end plate (303), and weld a first connector (501) at the bottom of the corrugated steel plate (301); S2: Transport the combined elastic body (3), the bridge deck anchoring structure and the first connector (501) as a whole to the construction site, and place them at the position of the installation notch (103) reserved on the main beam body (101); S3: Connect an elastic connector (503) between the second connector (502) and the first connector (501); S4: Pour a bridge deck concrete layer (201), an asphalt concrete layer (202) and a covering layer (601) above the main beam body (101) in sequence, and the construction is completed.

12. A bridge, characterized in that, It includes an arch - type seamless expansion joint structure with continuous materials as described in any one of claims 8 - 10.

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