A bridge movable joint device and construction method

Abstract

The present application provides a bridge movable joint device and a construction method, which relate to the field of bridge engineering. The bridge movable joint device includes a first structural member, a second structural member, a joint head, a joint socket and a first elastic member. The second structural member is arranged on the top of the first structural member. The joint head is connected to the first structural member. The joint socket cover is arranged at one end of the joint head, and the joint socket is connected to the second structural member. A joint cavity is formed between the joint head and the joint socket. The first elastic member is arranged in the joint cavity, and the first elastic member is configured to allow the joint head and the joint socket to move relative to each other. The bridge movable joint device is connected to the first structural member through the joint head, and is connected to the second structural member through the joint socket. A first elastic member is arranged between the joint head and the joint socket, which can allow the first structural member to move relative to the second structural member, thereby releasing the bending moment and torque of the first structural member and the second structural member, improving the structural stress, and extending the life of the bridge.

Description

Technical Field

[0001] The present application relates to the field of bridge engineering, and more specifically, to a bridge movable joint device and a construction method. Background Art

[0002] Bridges generally refer to structures built across rivers, lakes, and seas to allow vehicles and pedestrians to pass smoothly. In order to adapt to the modern high-speed development of the transportation industry, bridges are also extended to buildings that are built across mountain streams, poor geology, or to meet other transportation needs to make travel more convenient.

[0003] At present, rigid connections are often used when building bridges, which makes it difficult to release the bending moment and torque of the bridge and shortens the life of the bridge. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a bridge movable joint device and a construction method, which aims to improve the problem of short bridge life in related technologies.

[0005] In a first aspect, an embodiment of the present application provides a bridge movable joint device, which includes a first structural member, a second structural member, a joint head, a joint socket and a first elastic member, wherein the second structural member is arranged on the top of the first structural member; the joint head is connected to the first structural member; the joint socket cover is arranged at one end of the joint head, the joint socket is connected to the second structural member, and a joint cavity is formed between the joint head and the joint socket; the first elastic member is arranged in the joint cavity, and the first elastic member is configured to allow the joint head and the joint socket to move relative to each other.

[0006] In the above technical solution, the movable joint device of the bridge is connected to the first structural member through the joint head, and is connected to the second structural member through the joint socket. A first elastic member is arranged between the joint head and the joint socket, which can allow the first structural member and the second structural member to move relative to each other, thereby releasing the bending moment and torque of the first structural member and the second structural member, improving the structural stress, and extending the life of the bridge.

[0007] As an optional technical solution of an embodiment of the present application, the first elastic member is arranged between the outer surface of the joint head and the inner surface of the joint socket, and the first elastic member is used to seal the joint head and the joint socket.

[0008] In the above technical solution, the first elastic member is arranged between the outer surface of the joint head and the inner surface of the joint socket so that the first elastic member can play a sealing role and seal the joint head and the joint socket. In this way, the air is isolated from the outer surface of the joint head and the inner surface of the joint socket, so that the outer surface of the joint head and the inner surface of the joint socket are not easily corroded by the action of air, which is conducive to extending the service life of the joint head and the joint socket, that is, extending the service life of the bridge movable joint device. In addition, the first elastic member can also increase the contact surface between the joint head and the joint socket, preventing the joint head or the joint socket from being damaged due to large local force under the action of horizontal shear force.

[0009] As an optional technical solution of an embodiment of the present application, the bridge movable joint device includes a second elastic member, which is arranged between the first structural member and the second structural member, and the second elastic member is configured to allow the joint head and the joint socket to move relative to each other, and the second elastic member seals the first structural member and the second structural member.

[0010] In the above technical scheme, by setting the second elastic member, not only can the first structural member and the second structural member be allowed to move relative to each other, thereby releasing the bending moment and torque of the first structural member and the second structural member, improving the structural stress, and extending the life of the bridge, but the first structural member and the second structural member can also be sealed to prevent air from entering from the gap between the first structural member and the second structural member and reacting with the articular head and the articular socket, thereby preventing the articular head and the articular socket from being corroded by air, which is beneficial to extending the service life of the articular head and the articular socket, that is, extending the life of the movable joint device of the bridge.

[0011] As an optional technical solution of an embodiment of the present application, the bridge movable joint device includes a joint throat, which is mounted on the joint head, the upper surface of the joint throat is in contact with the second structural member, and the lower surface of the joint throat is in contact with the first structural member.

[0012] In the above technical solution, a joint throat is arranged to be sleeved on the joint head, and the upper surface of the joint throat is in contact with the second structural member, and the lower surface is in contact with the first structural member, so that the joint throat can directly bear the axial force transmitted by the second structural member, and the joint head does not have to bear the axial force, which is beneficial to improving the structural stress and extending the life of the bridge movable joint device.

[0013] As an optional technical solution of an embodiment of the present application, the lower surface is an inclined surface, and / or the upper surface is a curved surface.

[0014] In the above technical solution, the lower surface is set as an inclined surface to avoid air holes between the joint throat and the first structural member when the joint throat is cast with the first structural member. The upper surface is set as a curved surface to facilitate relative movement between the first structural member and the second structural member.

[0015] As an optional technical solution of the embodiment of the present application, the joint head has a filling cavity for filling with reinforcing filler.

[0016] In the above technical solution, the strength of the joint head can be enhanced by providing a filling cavity in the joint head for filling with reinforcing filler.

[0017] As an optional technical solution of an embodiment of the present application, the bridge movable joint device includes a tensile member, which is partially accommodated in the filling cavity, and one end of the tensile member passes through the joint socket away from the side of the joint head.

[0018] In the above technical solution, by setting the tensile member, it can not only meet the deformation requirements of the bridge movable joint device under normal use, but also meet the tensile and pull-out requirements of the bridge movable joint device under special circumstances, and prevent the occurrence of structural cavitation and overturning problems. In addition, since the tensile member is partially accommodated in the filling cavity, the reinforcing filler filled in the filling cavity can also play a positioning role for the tensile member.

[0019] As an optional technical solution of an embodiment of the present application, the joint head includes a tube body and a shear member, one end of the tube body is covered by the joint socket, and the other end of the tube body is used to connect with the first structural member; the shear member is protruded from the outer peripheral surface of the tube body, and the shear member is buried in the first structural member.

[0020] In the above technical solution, by protruding a shear member on the outer circumferential surface of the tube body, the connection strength between the joint head and the first structural member can be enhanced, so as to enhance the connection strength between the bridge movable joint device and the first structural member.

[0021] As an optional technical solution of an embodiment of the present application, the surfaces of the joint head and the joint socket both have an anti-corrosion layer.

[0022] In the above technical solution, by providing an anti-corrosion layer on the surface of the joint head and the joint socket, the possibility of corrosion of the joint head and the joint socket can be reduced, and the service life of the bridge movable joint device can be extended.

[0023] In the second aspect, an embodiment of the present application also provides a construction method for constructing the above-mentioned bridge movable joint device, the construction method comprising casting a first pre-cast part of the first structural member, and reserving a first post-cast space in the first pre-cast part; placing the joint head in the first post-cast space and connecting it to the first pre-cast part; casting the first post-cast space to form a first post-cast part; arranging the joint socket cover on the joint head and arranging the first elastic member in the joint cavity; casting the second pre-cast part of the second structural member, and reserving a second post-cast space in the second pre-cast part; placing the joint socket in the second post-cast space and connecting it to the second pre-cast part; casting the second post-cast space to form a second post-cast part. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A schematic diagram of the structure of a bridge movable joint device provided in an embodiment of the present application;

[0026] Figure 2 for Figure 1 Sectional view at the AA position;

[0027] Figure 3 A flowchart of the construction method provided in the embodiment of the present application.

[0028] Icons: 10-bridge movable joint device; 100-first structural member; 110-first pre-cast part; 111-first embedded steel bar; 120-first post-cast part; 200-second structural member; 210-second pre-cast part; 211-second embedded steel bar; 220-second post-cast part; 300-joint head; 310-tube body; 311-filling cavity; 320-shear member; 330-spiral bar; 400-joint socket; 500-first elastic member; 600-second elastic member; 700-joint throat; 800-tensile member. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0032] In the description of the embodiments of the present application, it should be understood that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the products of the application are conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0033] Furthermore, the terms “first”, “second”, “third”, etc. are merely used for distinguishing descriptions and are not to be understood as indicating or implying relative importance.

[0034] In the description of the embodiments of the present application, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0035] Example

[0036] Please refer to Figure 1The present embodiment provides a bridge movable joint device 10, which includes a first structural member 100, a second structural member 200, a joint head 300, a joint socket 400 and a first elastic member 500. The second structural member 200 is arranged on the top of the first structural member 100. The joint head 300 is connected to the first structural member 100. The joint socket 400 is covered at one end of the joint head 300, and the joint socket 400 is connected to the second structural member 200, and a joint cavity is formed between the joint head 300 and the joint socket 400. The first elastic member 500 is arranged in the joint cavity, and the first elastic member 500 is configured to allow the joint head 300 and the joint socket 400 to move relative to each other.

[0037] The bridge movable joint device 10 is connected to the first structural member 100 through the joint head 300, and is connected to the second structural member 200 through the joint socket 400. A first elastic member 500 is arranged between the joint head 300 and the joint socket 400, which can allow the first structural member 100 and the second structural member 200 to move relative to each other, thereby releasing the bending moment and torque of the first structural member 100 and the second structural member 200, improving the structural stress, and extending the life of the bridge.

[0038] In some embodiments, the first structural member 100 includes a first precast portion 110 and a first postcast portion 120. The first precast portion 110 may be a prefabricated structure or a cast-in-place structure. A first postcast space is reserved on the first precast portion 110, and the first postcast space is used to cast the first postcast portion 120. In some embodiments, the first structural member 100 further includes a first embedded steel bar 111, which is embedded in the first precast portion 110 and extends into the first postcast space. When constructing the first postcast portion 120 in the first postcast space, the first embedded steel bar 111 is embedded in the first postcast portion 120.

[0039] In some embodiments, the second structural member 200 includes a second precast portion 210 and a second postcast portion 220. The second precast portion 210 may be a prefabricated structure or a cast-in-place structure. A second postcast space is reserved on the second precast portion 210, and the second postcast space is used to cast the second postcast portion 220. In some embodiments, the second structural member 200 further includes a second embedded steel bar 211, which is embedded in the second precast portion 210 and extends into the second postcast space. When constructing the second postcast portion 220 in the second postcast space, the second embedded steel bar 211 is embedded in the second postcast portion 220.

[0040] The first structural member 100 and the second structural member 200 include but are not limited to structures such as main beam and cap beam, cap beam and pier, main beam and pier, cap and pier, cap and pile foundation, foundation and arch foot, etc. Among them, the second structural member 200 has a relatively large stiffness or strength, and the first structural member 100 has a relatively small stiffness or strength.

[0041] In some embodiments, the joint head 300 includes a tube body 310 and a shearing member 320, one end of the tube body 310 is covered by the joint socket 400. The other end of the tube body 310 is used to connect with the first structural member 100. The shearing member 320 is convexly arranged on the outer peripheral surface of the tube body 310, and the shearing member 320 is embedded in the first structural member 100.

[0042] Optionally, one end of the tube body 310 is accommodated in the first post-casting space, and the other end of the tube body 310 extends into the second post-casting space. The portion of the tube body 310 accommodated in the first post-casting space is fixedly connected to the first embedded steel bar 111, for example, by welding. One end of the portion of the tube body 310 extending into the second post-casting space is covered by the joint socket 400. After the first post-casting portion 120 is cast in the first post-casting space, the portion of the tube body 310 accommodated in the first post-casting space is buried in the first post-casting portion 120. After the second post-casting portion 220 is cast in the second post-casting space, the portion of the tube body 310 accommodated in the second post-casting space is buried in the second post-casting portion 220.

[0043] In some embodiments, the end surface of the tube body 310 extending into the second post-casting space is a curved surface to facilitate the relative movement of the joint head 300 and the joint socket 400 .

[0044] The portion of the outer circumferential surface of the tube body 310 protruding with the shear member 320 is accommodated in the first post-cast space. After the first post-cast part 120 is cast in the first post-cast space, the shear member 320 is buried in the first post-cast part 120 .

[0045] In some embodiments, the shear member 320 is columnar, one end of the shear member 320 is connected to the outer peripheral surface of the tube body 310, and the shear member 320 extends outward along the radial direction of the tube body 310. Optionally, the shear member 320 is a shear nail.

[0046] In some embodiments, the joint head 300 includes multiple circles of shearing members 320, which are arranged along the axial direction of the tube body 310. Each circle of shearing members 320 includes multiple shearing members 320, which are arranged at intervals along the circumference of the tube body 310.

[0047] By protruding the shear member 320 on the outer circumferential surface of the tube body 310 , the connection strength between the joint head 300 and the first structural member 100 can be enhanced, so as to enhance the connection strength between the bridge movable joint device 10 and the first structural member 100 .

[0048] In some embodiments, the joint head 300 further includes a spiral rib 330, which is wound around the outer circumference of the tube body 310, and is accommodated in the first post-casting space. After the first post-casting part 120 is cast in the first post-casting space, the spiral rib 330 is buried in the first post-casting part 120. By providing the spiral rib 330, the structural strength near the tube body 310 can be enhanced to enhance the horizontal shear resistance of the bridge movable joint device 10.

[0049] In some embodiments, please refer to Figure 1 , with reference Figure 2 The joint head 300 has a filling cavity 311 for filling a reinforcing filler. Optionally, the hollow portion of the tube body 310 is the filling cavity 311. The filling cavity 311 can be filled with a reinforcing filler, such as concrete. By providing the filling cavity 311 for filling a reinforcing filler in the joint head 300, the strength of the joint head 300 can be enhanced.

[0050] In some embodiments, the bridge movable joint device 10 includes a tensile member 800 , and the tensile member 800 is partially accommodated in the filling cavity 311 . One end of the tensile member 800 passes through the side of the joint socket 400 away from the joint head 300 .

[0051] A portion of the tensile member 800 is accommodated in the filling cavity 311, and when the filling cavity 311 is filled with reinforcing filler, the tensile member 800 can be pre-buried in the filling cavity 311. Another portion of the tensile member 800 extends into the second post-casting space, and one end of the tensile member 800 extending into the second post-casting space passes through the side of the joint socket 400 away from the joint head 300. When the second post-casting portion 220 is cast in the second post-casting space, the portion of the tensile member 800 extending into the second post-casting space is buried in the second post-casting portion 220.

[0052] Optionally, the tensile member 800 has a first stopper and a main body, a portion of the main body extends into the first post-casting space, and another portion of the main body extends into the second post-casting space and passes through the side of the joint socket 400 away from the joint head 300. The first stopper is connected to the main body and abuts against the side of the joint socket 400 away from the joint head 300 to prevent the main body from being disengaged downward from the joint socket 400. The first stopper may be a bolt, which is threadedly connected to the main body.

[0053] In some embodiments, the tensile member 800 further has a second stopper connected to one end of the main body portion accommodated in the first post-casting space, and the second stopper is used to prevent the main body portion from upwardly separating from the joint socket 400.

[0054] Optionally, a cavity is separated at the lower end of the tube body 310, and one end of the main body extends into the cavity. The second stopper is connected to the end of the main body extending into the cavity, and the second stopper abuts against the inner wall of the cavity to prevent the main body from upwardly disengaging from the joint socket 400. Specifically, the cavity is separated by two steel plates spaced apart along the axial direction of the tube body 310. The second stopper abuts against the lower side of the steel plate located above. The second stopper can be a bolt, and the second stopper is threadedly connected to the main body.

[0055] By setting the tensile member 800, the deformation requirements of the bridge movable joint device 10 under normal use can be met, and the tensile resistance requirements of the bridge movable joint device 10 under special circumstances can be met, so as to prevent the occurrence of structural detachment and overturning problems. In addition, since the tensile member 800 is partially accommodated in the filling cavity 311, the reinforcing filler filled in the filling cavity 311 can also play a positioning role for the tensile member 800. Furthermore, the tensile member 800 can also limit the relative position between the joint head 300 and the joint socket 400, play a positioning role, and prevent the joint head 300 and the joint socket 400 from shifting under the influence of external force when pouring the second post-casting part 220.

[0056] In some embodiments, the joint socket 400 includes a plate body and a surrounding body, and the surrounding body is arranged around the edge of the plate body. The plate body is provided with a through hole for the main body to pass through. The plate body covers one end of the tube body 310, and the surrounding body is arranged around the outer periphery of the tube body 310, so that the joint socket 400 is covered at one end of the joint head 300.

[0057] In some embodiments, the joint socket 400 is a cover structure, that is, the overall structure formed by the plate body and the surrounding body is the cover structure.

[0058] When the joint socket 400 is covered at one end of the joint head 300, a joint cavity is formed between the joint head 300 and the joint socket 400. The first elastic member 500 is arranged in the joint cavity, and the first elastic member 500 can be deformed to allow the joint head 300 and the joint socket 400 to move relative to each other. In some embodiments, the first elastic member 500 is arranged between the outer surface of the joint head 300 and the inner surface of the joint socket 400, and the first elastic member 500 is used to seal the joint head 300 and the joint socket 400. By arranging the first elastic member 500 between the outer surface of the joint head 300 and the inner surface of the joint socket 400, the first elastic member 500 can play a sealing role, and the joint head 300 and the joint socket 400 are sealed. In this way, the air is isolated from the outer surface of the joint head 300 and the inner surface of the joint socket 400, so that the outer surface of the joint head 300 and the inner surface of the joint socket 400 are not easily corroded by the air, which is beneficial to prolonging the service life of the joint head 300 and the joint socket 400, that is, prolonging the service life of the bridge movable joint device 10. In addition, the first elastic member 500 can also increase the contact surface between the joint head 300 and the joint socket 400, preventing the joint head 300 or the joint socket 400 from being damaged due to large local force under the action of horizontal shear force.

[0059] In some embodiments, a portion of the first elastic member 500 is accommodated between the ends of the plate body and the tube body 310, and another portion of the first elastic member 500 is accommodated between the outer circumferential surface of the surrounding body and the tube body 310, so as to fully contact the inner surface of the joint socket 400 and the outer surface of the joint head 300, thereby allowing the joint head 300 and the joint socket 400 to deform while also being able to seal the joint head 300 and the joint socket 400 to extend their service life.

[0060] Optionally, the first elastic member 500 is vulcanized rubber. Selecting vulcanized rubber as the first elastic member 500 can meet its elastic deformation requirements and also have a good sealing effect. Of course, the first elastic member 500 can also be made of other rubber materials.

[0061] In some embodiments, please refer to Figure 1 , with reference Figure 2 The bridge movable joint device 10 includes a second elastic member 600, which is disposed between the first structural member 100 and the second structural member 200. The second elastic member 600 is configured to allow the joint head 300 and the joint socket 400 to move relative to each other, and the second elastic member 600 seals the first structural member 100 and the second structural member 200.

[0062] Optionally, the second elastic member 600 separates all contact surfaces of the first structural member 100 and the second structural member 200 , and the thickness of the second elastic member 600 should meet the requirement of designing active deformation between the first structural member 100 and the second structural member 200 .

[0063] By setting the second elastic member 600, not only can the first structural member 100 and the second structural member 200 be allowed to move relative to each other, thereby releasing the bending moment and torque of the first structural member 100 and the second structural member 200, improving the structural stress, and extending the life of the bridge, but the first structural member 100 and the second structural member 200 can also be sealed to prevent air from entering from the gap between the first structural member 100 and the second structural member 200 and reacting with the joint head 300 and the joint socket 400, thereby preventing the joint head 300 and the joint socket 400 from being corroded by air, which is beneficial to extending the service life of the joint head 300 and the joint socket 400, that is, extending the life of the bridge movable joint device 10.

[0064] Optionally, the second elastic member 600 is a rubber pad. Selecting the rubber pad as the second elastic member 600 can satisfy the elastic deformation requirement and also have a good sealing effect.

[0065] In some embodiments, the bridge movable joint device 10 includes a joint throat 700, which is sleeved on the joint head 300 (specifically, sleeved on the tube body 310). The upper surface of the joint throat 700 contacts the second structural member 200, and the lower surface of the joint throat 700 contacts the first structural member 100. By setting the joint throat 700 sleeved on the joint head 300, and making the upper surface of the joint throat 700 contact the second structural member 200, and the lower surface contacting the first structural member 100, the joint throat 700 can directly bear the axial force transmitted by the second structural member 200, and the joint head 300 does not need to bear the axial force, which is conducive to improving the structural stress and extending the life of the bridge movable joint device 10.

[0066] Optionally, the lower surface of the joint throat 700 is an inclined surface. By setting the lower surface as an inclined surface, it is avoided that air holes are generated between the joint throat 700 and the first structural member 100 when the joint throat 700 is cast with the first structural member 100 .

[0067] The upper surface of the joint throat 700 is an arc surface, for example, a circular arc surface. By setting the upper surface as an arc surface, the first structural member 100 and the second structural member 200 can move relative to each other.

[0068] In some embodiments, the surfaces of the joint head 300, the joint socket 400 and the joint throat 700 are all provided with an anti-corrosion layer. By providing the anti-corrosion layer on the surfaces of the joint head 300, the joint socket 400 and the joint throat 700, the possibility of corrosion of the joint head 300, the joint socket 400 and the joint throat 700 can be reduced, and the service life of the bridge movable joint device 10 can be extended.

[0069] Optionally, the anti-corrosion layer is formed by zinc plating on the surface of the joint head 300 , the joint socket 400 or the joint throat 700 .

[0070] Of course, in other embodiments, the joint head 300, the joint socket 400 and the joint throat 700 can be made of stainless steel, which also has strong corrosion resistance and durability.

[0071] The bridge movable joint device 10 provided in this embodiment can be constructed and manufactured as follows:

[0072] Cast the first pre-cast part 110, and reserve the first post-cast space, lay out and locate the position of the joint head 300 (including the tube body 310, the shear member 320, and the spiral rib 330), and weld the tube body 310 to the first embedded steel bar 111. Then insert the tensile member 800 into the tube body 310, and cast the first post-cast part 120 in the first post-cast space. Before the first post-cast part 120 is initially solidified, install the joint throat 700. After the first post-cast part 120 reaches the preset strength, adjust the position of the tensile member 800 so that it is located in the center of the tube body 310. Fill the steel pipe with reinforcing filler and lay the second elastic member 600. After the reinforcing filler filled in the tube body 310 reaches the preset strength, cover the joint head 300 with the joint socket 400, and pass the tensile member 800 through the joint socket 400. Here, a part of the joint head 300 and the joint socket 400 are located in the second post-cast space. The joint socket 400 is welded to the second embedded steel bar 211. Finally, the second post-casting part 220 is cast in the second post-casting space.

[0073] The bridge movable joint device 10 provided in this embodiment can realize the flexible connection between two structural members, and has good durability, low cost, and simple implementation method. The bridge movable joint device 10 can ensure that the first structural member 100 and the second structural member 200 connected can move relative to each other, so that the bending moment and torque between the first structural member 100 and the second structural member 200 can be completely released. In addition, the tensile structure of the bridge movable joint device 10 can not only meet the rotation deformation requirements of the bridge movable joint device 10 under normal use, but also realize the anti-pulling function to prevent the occurrence of problems such as the connected structure being detached and overturned. The bridge movable joint device 10 is provided with a second elastic member 600 on the contact surface of the first structural member 100 and the second structural member 200, and the joint cavity is also filled with the first elastic member 500, which can play a role in isolating the air. The joint socket 400, the joint head 300 and the joint throat 700 are made of durable materials such as stainless steel or hot-dip galvanizing, and the joint head 300 is galvanized for corrosion protection. These measures greatly improve the durability of the bridge movable joint device 10, extend the life of the bridge movable joint device 10, make it maintenance-free during the life cycle of the bridge, and reduce the full life cycle cost of the bridge.

[0074] Please refer to Figure 3 This embodiment also provides a construction method for constructing the above-mentioned bridge movable joint device 10. The construction method includes:

[0075] Step S1: Casting a first pre-cast part 110 of a first structural member 100, and reserving a first post-cast space in the first pre-cast part 110;

[0076] Step S2: placing the joint head 300 in the first post-casting space and connecting it to the first pre-casting part 110;

[0077] Step S3: pouring the first post-casting space to form a first post-casting part 120;

[0078] Step S4: Cover the joint socket 400 on the joint head 300 and arrange the first elastic member 500 in the joint cavity;

[0079] Step S5: Casting the second pre-cast part 210 of the second structural member 200, and reserving a second post-cast space in the second pre-cast part 210;

[0080] Step S6: placing the joint socket 400 in the second post-casting space and connecting it to the second pre-casting part 210;

[0081] Step S7: Casting the second post-casting space to form a second post-casting part 220.

[0082] In some embodiments, the construction method further comprises:

[0083] In step S3 (ie, in the step of pouring the first post-casting space to form the first post-casting part 120 ), the joint throat 700 is installed before the first post-casting part 120 initially sets.

[0084] In some embodiments, the construction method further comprises:

[0085] After step S2 (ie, after the step of placing the joint head 300 in the first post-casting space and connecting it to the first pre-casting part 110 ), the tensile member 800 is placed on the joint head 300 .

[0086] In step S3 (i.e., in the step of pouring the first post-cast space to form the first post-cast part 120), after the first post-cast part 120 reaches the set strength, the position of the tensile member 800 is adjusted so that the tensile member 800 is located at the center of the joint head 300.

[0087] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A bridge movable joint device, characterized in that: include: a first structural member; A second structural member, disposed on top of the first structural member; A joint head connected to the first structural member; A joint socket, which is covered at one end of the joint head, the joint socket is connected to the second structural member, and a joint cavity is formed between the joint head and the joint socket; A first elastic member, disposed in the joint cavity, wherein the first elastic member is configured to allow the joint head and the joint socket to move relative to each other; The bridge movable joint device includes a joint throat, which is sleeved on the joint head. The upper surface of the joint throat is an arc surface, which contacts the second structural member. The lower surface of the joint throat is an inclined surface, which contacts the first structural member.

2. The bridge movable joint device according to claim 1, characterized in that: The first elastic member is disposed between the outer surface of the joint head and the inner surface of the joint socket, and the first elastic member is used for sealing the joint head and the joint socket.

3. The bridge movable joint device according to claim 2, characterized in that: The bridge movable joint device includes a second elastic member, which is arranged between the first structural member and the second structural member. The second elastic member is configured to allow the joint head and the joint socket to move relative to each other, and the second elastic member seals the first structural member and the second structural member.

4. The bridge movable joint device according to claim 1, characterized in that: The joint head is provided with a filling cavity for filling with reinforcing filler.

5. The bridge movable joint device according to claim 4, characterized in that: The bridge movable joint device includes a tensile member, wherein the tensile member is partially accommodated in the filling cavity, and one end of the tensile member passes through the joint socket away from the side of the joint head.

6. The bridge movable joint device according to claim 1, characterized in that: The joint head comprises: A tube body, one end of which is covered by the joint socket, and the other end of which is used to connect with the first structural member; The shearing member is protrudingly arranged on the outer peripheral surface of the tube body, and the shearing member is embedded in the first structural member.

7. The bridge movable joint device according to claim 1, characterized in that: The surfaces of the joint head and the joint socket are both provided with an anti-corrosion layer.

8. A construction method, characterized in that: Used for constructing the bridge movable joint device according to any one of claims 1 to 7, the construction method comprises: Casting a first pre-cast part of the first structural member, and reserving a first post-cast space in the first pre-cast part; The joint head is placed in the first post-casting space and connected to the first pre-casting part; Casting the first post-casting space to form a first post-casting part, and installing the joint throat before the first post-casting part begins to set; The socket cover is arranged on the joint head and the first elastic member is arranged in the joint cavity; Casting a second first-cast part of the second structural member, and reserving a second post-cast space in the second first-cast part; The joint socket is placed in the second post-cast space and connected to the second pre-cast part; The second post-cast space is cast to form a second post-cast part.

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