Arch rib closure device, closure method thereof and bridge arch rib

Abstract

The invention belongs to the technical field of bridge engineering, and discloses an arch rib closure device, a closure method thereof and a bridge arch rib, the arch rib closure device comprises a first pipe body and a second pipe body, a sleeve is slidably arranged in the first pipe body, a driving piece is arranged at the end, away from the second pipe body, of the sleeve, and the driving piece is connected with the second pipe body. The driving part is used for driving the sleeve to move in the axial direction of the first pipe body, and when the sleeve moves towards the side close to the second pipe body, the sleeve can be inserted into the second pipe body to achieve connection of the first pipe body and the second pipe body. According to the arch rib closure device, rapid and accurate butt joint of the first pipe body and the second pipe body can be achieved, the closure process is simplified, the construction efficiency is improved, the arch rib installation precision and quality are high, and the good application prospect is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of bridge engineering, and in particular relates to an arch rib closure device and a closure method thereof, and a bridge arch rib. Background Art

[0002] With the continuous development of science and technology, various bridge construction methods have emerged, especially arch bridge construction. Common arch bridge construction methods include bracket assembly method, cable crane assembly method, overall lifting method, rotation method, etc. These arch bridge construction methods all have a closure process. The existing arch rib closure of steel tube arch bridges has the problems of complex operation and low efficiency. Summary of the Invention

[0003] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide an arch rib closure device and a closure method thereof, and a bridge arch rib. The arch rib closure device can at least improve the installation accuracy and quality of the arch rib, and is simple to operate and highly efficient.

[0004] The present invention provides an arch rib closure device, comprising: a first tube body and a second tube body, wherein a sleeve is slidably arranged in the first tube body, and a driving member is provided at one end of the sleeve away from the second tube body, wherein the driving member is used to drive the sleeve to move along the axial direction of the first tube body, and when the sleeve moves toward the side close to the second tube body, the sleeve can be inserted into the second tube body to realize the connection between the first tube body and the second tube body.

[0005] The arch rib closure device provided by the present invention has a simple structure. Through the design of the sliding sleeve and the driving member, the first pipe body and the second pipe body can be quickly and accurately connected, the closure process is simplified, and the construction efficiency is improved. The manual operation is simple and convenient, the investment is small, the difficulty of high-altitude operations is reduced, and the safety is high. At the same time, the installation accuracy and installation quality are also improved, and it has a good application prospect.

[0006] In addition, the arch rib closure device of the present invention may also have the following additional technical features: In some embodiments, the driving member includes a falcon plate, which is fixedly connected to the sleeve. A falcon hole extending axially thereof is provided on one side of the first tube body close to the second tube body, and the falcon plate at least partially passes through the falcon hole and extends out of the first tube body.

[0007] In some embodiments, there are at least two falcon plates, each of which is evenly distributed on the sleeve in a circumferential direction, and the falcon holes are arranged in a one-to-one correspondence with the falcon plates.

[0008] In some embodiments, the driving member further includes a driving device, the driving device is fixedly connected to the falcon plate, and the driving device is used to drive the falcon plate to move linearly along the falcon hole.

[0009] In some embodiments, a guide head is provided at one end of the sleeve close to the second tube body.

[0010] In some embodiments, the device further includes a first arc-shaped member and a second arc-shaped member arranged opposite to each other, the first arc-shaped member and the second arc-shaped member are covered outside the sleeve and are fixedly connected to the first tube body and the second tube body, the first arc-shaped member and the second arc-shaped member are buckled together to form a ring member, and the first arc-shaped member and the second arc-shaped member are fixedly connected.

[0011] A second aspect of the present invention provides a method for closure of an arch rib, the method being used to obtain the arch rib closure device described in any embodiment of the present application, the method comprising: A sleeve is slidably arranged in the first tube body; The driving member drives the sleeve to move in the first tube body along the side close to the second tube body, so that the sleeve is inserted into the second tube body, and the two ends of the sleeve are respectively welded and fixed to the inner walls of the first tube body and the second tube body to achieve the connection and fixation of the first tube body and the second tube body.

[0012] In some embodiments, the driving member includes a falcon plate fixedly connected to the sleeve, and a falcon hole extending along the axial direction of the first tube body is provided on a side of the first tube body close to the second tube body; After the two ends of the sleeve are respectively welded and fixed to the inner walls of the first tube body and the second tube body, the method further includes: The falcon plate extending out of the first tube body is cut off, and the falcon hole is filled by plug welding.

[0013] In some embodiments, after the plug welding is performed on the falcon hole, the method further includes: The first arc-shaped member and the second arc-shaped member are buckled onto the outside of the sleeve, and both ends of the first arc-shaped member and the second arc-shaped member are welded and fixed to the first tube body and the second tube body, and the ends of the first arc-shaped member and the second arc-shaped member close to each other are welded and fixed.

[0014] A third aspect of the present invention provides a bridge arch rib, comprising the arch rib closure device described in any embodiment of the present application, or comprising the arch rib closure device obtained by the arch rib closure method described in any embodiment of the present application.

[0015] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings: Figure 1This is an elevation view of the arch rib closure device provided in an embodiment of the present application before closure; Figure 2 A top view of the arch rib closure device provided in an embodiment of the present application before closure; Figure 3 A diagram showing the matching of the sleeve and the falcon plate provided in an embodiment of the present application; Figure 4 This is an elevation view of the arch rib closure device after closure provided in an embodiment of the present application; Figure 5 A top view of the arch rib closure device provided in an embodiment of the present application after closure; In the above picture: 10 first tube body; 20 second tube body; 30 sleeve; 301 guide head; 40 falcon hole; 50 falcon plate; 60 first curved member; 70 second curved member. DETAILED DESCRIPTION

[0017] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the relevant invention and are not intended to limit the invention. It should also be noted that, for ease of description, only portions relevant to the invention are shown in the accompanying drawings.

[0018] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0019] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The singular forms "a," "the," and "the" used in this application and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

[0020] Unless the context requires otherwise, throughout the specification and claims, the term "comprising" is to be construed in an open, inclusive sense, that is, meaning "including, but not limited to."

[0021] Throughout the specification, terms such as "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific example," or "some examples" are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of the present disclosure. Schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be included in any one or more embodiments or examples in any appropriate manner.

[0022] The terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, unless otherwise specified, "plurality" means two or more.

[0023] refer to Figures 1 to 5 An embodiment of the present application provides an arch rib closure device, comprising: a first tube body 10 and a second tube body 20, a sleeve 30 being slidably arranged in the first tube body 10, and a driving member being provided at one end of the sleeve 30 away from the second tube body 20, the driving member being used to drive the sleeve 30 to move along the axial direction of the first tube body 10, and when the sleeve 30 moves toward the side close to the second tube body 20, the sleeve 30 can be inserted into the second tube body 20 to realize the connection between the first tube body 10 and the second tube body 20.

[0024] Specifically, the driving member can drive the sleeve 30 to move linearly along its axis inside the first tube body 10, and the axis movement direction is Figure 4 and Figure 5 The direction indicated by the dotted arrow in the figure is the direction in which the sleeve 30 is pulled by a driving device such as a hand hoist. When the sleeve 30 moves toward the side close to the second tube body 20, the sleeve 30 can be inserted into the second tube body 20. The length of the sleeve 30 is set according to the distance between the first tube body 10 and the second tube body 20. The length of the sleeve 30 is greater than the distance between the first tube body 10 and the second tube body 20. This ensures that when one end of the sleeve 30 is inserted into the interior of the second tube body 20, the other end of the sleeve 30 is always located in the first tube body 10, thereby achieving a fixed connection between the first tube body 10 and the second tube body 20. The first tube body 10 can be a pre-embedded section of the abutment steel pipe, and the second tube body 20 can be a hoisted steel pipe.

[0025] Traditional arch rib closure methods rely on hoisting adjustments, temporary supports, or flange docking, which are complex and time-consuming. The arch rib closure device of this application, through the design of a slidable sleeve 30 and a drive element, achieves rapid and precise docking of the arch rib tubes (first tube 10 and second tube 20), simplifying the closure process and improving construction efficiency.

[0026] In the arch rib closure device provided in the embodiment of the present application, the sleeve 30 plays a guiding role during the sliding process, ensuring that the axes of the first tube body 10 and the second tube body 20 are aligned, thereby reducing the deviation of the steel bar closure. After the sleeve 30 is inserted into the second tube body 20, a double tube wall structure is formed, which enhances the joint stiffness, reduces the concentration of welding stress, reduces the need for high-altitude workers to directly adjust the closure mouth, reduces the risk of falling, and does not require a large temporary support frame, saving construction costs and reducing the space occupied by on-site equipment. It is suitable for the construction of large-span arch bridges and avoids repeated corrections caused by temperature deformation or hoisting errors. After being inserted into the second tube body 20, the sleeve 30 can be fixed by welding or bolts, that is, both ends of the outer wall of the sleeve 30 are welded and fixed to the inner walls of the first tube body 10 and the second tube body 20, thereby enhancing the stability and reliability of the connection.

[0027] In some embodiments, reference Figures 1 to 3 The driving member includes a falcon plate 50, which is fixedly connected to the sleeve 30. A falcon hole 40 extending along the axial direction of the first tube body 10 is provided on one side of the first tube body 10 close to the second tube body 20. The falcon plate 50 at least partially passes through the falcon hole 40 and extends out of the first tube body 10.

[0028] Specifically, the falcon plate 50 is fixed to the outer wall of the sleeve 30 and can be connected and fixed by welding, screwing, riveting, etc. The falcon hole 40 is opened along the axial direction of the first tube body 10 to form a linear slide structure, ensuring that the sleeve 30 can only move along the axis of the first tube body 10 to avoid deflection. The length of the falcon hole 40 determines the maximum stroke of the sleeve 30 to avoid deformation of the first tube body 10 caused by excessive jacking. The falcon hole 40 is designed as a long strip through hole to facilitate observation of the jacking progress and adjustment of the position. The part of the falcon plate 50 extending outside the first tube body 10 can be used as an operating ear plate to facilitate the suspension of driving equipment such as hand winches or hydraulic jacks, reducing the difficulty of high-altitude operations. After the steel pipe arch ribs are completed, the falcon plate 50 can be removed and the falcon hole 40 can be plug-welded to improve the shear resistance of the node.

[0029] In this example, by directly pushing the extended end of the falcon plate 50 with an external tool (such as a jack or a hand hoist), the sleeve 30 can be driven to be smoothly inserted into the second pipe body 20, without the need for complex equipment and with convenient operation.

[0030] It should be noted that the falcon hole 40 extends along the axial direction of the first tube body 10 and does not pass through the end of the first tube body 10, so as to prevent the sleeve 30 from falling off from the first tube body 10 during the sliding process, thereby ensuring the connection performance of the first tube body 10 and the second tube body 20.

[0031] In some embodiments, reference Figure 3 There are at least two falcon plates 50 , and each of the falcon plates 50 is evenly distributed on the sleeve 30 in the circumferential direction. The falcon holes 40 are arranged in a one-to-one correspondence with the falcon plates 50 .

[0032] Specifically, multiple slats 50 are evenly distributed along the outer wall of the casing 30. For example, two slats 50 are symmetrically distributed on the outer wall of the casing 30. This allows for uniform force during lifting, preventing the casing 30 from becoming stuck or shifting due to unilateral force. If a single slat 50 becomes unstable due to manufacturing errors or wear, the remaining slats 50 can still ensure normal lifting of the casing 30, reducing the risk of construction interruption.

[0033] In some embodiments, reference Figure 4 and Figure 5 The driving member further includes a driving device, which is fixedly connected to the falcon plate 50 and is used to drive the falcon plate 50 to move linearly along the falcon hole 40.

[0034] Specifically, the driving device includes a hydraulic cylinder, a hand hoist or a spiral jacking mechanism, etc. The driving device can drive the falcon plate 50 to move linearly along the falcon hole 40, driving the casing 30 to be inserted into the second pipe body 20, reducing the high-altitude adjustment time and improving the closure rate.

[0035] In some embodiments, reference Figures 1 to 5 A guide head 301 is provided at one end of the sleeve 30 close to the second tube body 20 .

[0036] Specifically, the guide head 301 is conical, has an arc transition or a sloped structure (preferably with a slope angle of 15°-30°), wedge-shaped, etc., which automatically corrects the position deviation of the second tube body 20 when the casing 30 is lifted, reducing manual adjustment time, and can achieve smooth insertion of the casing 30 into the second tube body 20, thereby improving the efficiency of the joint closure.

[0037] In some embodiments, reference Figure 4 The device also includes a first arc-shaped member 60 and a second arc-shaped member 70 that are arranged opposite to each other. The first arc-shaped member 60 and the second arc-shaped member 70 are covered on the outside of the sleeve 30 and are fixedly connected to the first tube body 10 and the second tube body 20. The first arc-shaped member 60 and the second arc-shaped member 70 are buckled together to form a ring member. The first arc-shaped member 60 and the second arc-shaped member 70 are fixedly connected.

[0038] Specifically, the first curved member 60 and the second curved member 70 are covered on the outside of the sleeve 30 at the joint position of the first tube body 10 and the second tube body 20, and the first curved member 60 and the second curved member 70 can be welded and fixed to the first tube body 10 and the second tube body 20. The ends of the first curved member 60 and the second curved member 70 that are close to each other are welded and fixed. The first curved member 60 and the second curved member 70 can be semicircular plates. The two semicircular plates can be buckled together to form a circular plate. The circular plate is attached to the outer wall of the first tube body 10 and the second tube body 20 at the joint position. The buckling direction of the first curved member 60 and the second curved member 70 is Figure 4The solid arrow in the figure indicates the direction.

[0039] A second aspect of the present invention provides a method for closure of an arch rib, the method being used to obtain the arch rib closure device described in any embodiment of the present application, the method comprising: The sleeve 30 is slidably arranged in the first tube body 10; The driving member drives the sleeve 30 to move in the first tube body 10 along the side close to the second tube body 20, so that the sleeve 30 is inserted into the second tube body 20, and the two ends of the sleeve 30 are respectively welded and fixed to the inner walls of the first tube body 10 and the second tube body 20, thereby realizing the connection and fixation of the first tube body 10 and the second tube body 20.

[0040] Specifically, a sleeve 30 is first embedded in the first tube body 10. The sleeve 30 can slide along its axial direction in the first tube body 10. The driving member drives the sleeve 30 to move along the side close to the second tube body 20. When the sleeve 30 is lifted and inserted into the second tube body 20, both ends of the outer wall of the sleeve 30 are fully welded to the first tube body 10 and the second tube body 20 to form a continuous force path, thereby avoiding the stress concentration problem caused by traditional external welding.

[0041] In this example, the sleeve 30 is driven by a driving member such as a hydraulic jack or a hand winch to move axially along the first tube body 10 and directly inserted into the second tube body 20, thereby reducing the complex process of traditional flange docking or external splicing, shortening construction time, and improving construction efficiency; and relying on the self-guiding of the sleeve 30 and the constraint of the inner wall of the first tube body 10, there is no need for additional support frames, which is particularly suitable for high-altitude or obstacle-crossing construction.

[0042] In some embodiments, the driving member includes a falcon plate 50 fixedly connected to the sleeve 30, and a falcon hole 40 extending along the axial direction of the first tube body 10 is provided on a side close to the second tube body 20; After the two ends of the sleeve 30 are respectively welded to the inner walls of the first tube body 10 and the second tube body 20, the following steps are further included: The falcon plate 50 extending out of the first tube body 10 is cut off, and the falcon hole 40 is filled by plug welding.

[0043] Specifically, after the leak-proof plate 50 outside the first tube body 10 is cut off, the external protrusions are eliminated, so that the outer surface of the first tube body 10 is smooth and continuous, avoiding stress concentration; after the hole 40 is filled with plug welding, the first tube body 10 restores its complete annular cross-section. Sealing the hole 40 can completely block the intrusion channel of moisture and corrosive media, thereby improving the service life of the first tube body 10.

[0044] In some embodiments, after the plug welding is performed on the falcon hole 40, the method further includes: The first arc member 60 and the second arc member 70 are buckled onto the outside of the sleeve 30, and both ends of the first arc member 60 and the second arc member 70 are welded and fixed to the first tube body 10 and the second tube body 20, and the ends of the first arc member 60 and the second arc member 70 that are close to each other are welded and fixed.

[0045] Specifically, a first curved member 60 and a second curved member 70 are added to the exterior of the sleeve 30 and secured by full-circumferential welding, significantly improving the overall stiffness and load-bearing capacity of the joint. Both ends of the sleeve 30 are welded to the inner walls of the first and second tube bodies 10 and 20 to ensure axial force transmission. The annular sheath formed by the first and second curved members 60 and 70 provides circumferential constraint, forming a composite force-bearing system. The adjacent ends of the first and second curved members 60 and 70 are butt-welded to enhance connection stability, comprehensively improving the mechanical performance of the arch rib closure device.

[0046] It should be noted that the first curved member 60 and the second curved member 70 can be curved steel pipe tiles, and the side surfaces at one end of the first curved member 60 and the second curved member 70 that are close to each other can be inclined surfaces. The setting of the inclined surfaces can increase the welding area of ​​the first curved member 60 and the second curved member 70 and improve the welding strength.

[0047] The following describes the arch rib closure method provided in the embodiment of the present application using a specific embodiment, including: A sleeve 30 (or piston bolt tube) is installed in the first tube body 10. The end of the sleeve 30 close to the second tube body 20 has a guide head 301 to facilitate the insertion of the sleeve 30 into the last section of the second tube body 20 when the sleeve 30 is lifted. The first tube body 10 is provided with a tenon hole extending along its axial direction. A falcon plate 50 fixed to the side wall of the sleeve 30 extends through the tenon hole and out of the first tube body 10. The falcon plate 50 is lifted by a hand chain hoist to allow the sleeve 30 to be inserted into the second tube body 20. The ends of the outer wall of the sleeve 30 are fixedly connected to the first tube body 10 and the second tube body 20 by welding. Cut off the falcon plate 50 extending outside the first tube body 10, fill the mortise and tenon holes on the first tube body 10 with plug welding, and finally install the first arc member 60 and the second arc member 70 at the upper and lower parts of the joint, weld the connection position and the circumferential position, and complete the arch rib joint construction.

[0048] The arch rib closure method provided in the embodiment of the present application can solve the problem of spatial positioning of the arch rib closure position. The structure required for the closure is prepared or installed in advance, and can be completed quickly when it is time to install. The manual operation is simple and convenient, the investment is small, the difficulty of high-altitude operations is reduced, and the safety is high. At the same time, the installation accuracy and quality are also improved, and it has a good application prospect.

[0049] A third aspect of the present invention provides a bridge arch rib, comprising the arch rib closure device described in any embodiment of the present application, or comprising the arch rib closure device obtained by the arch rib closure method described in any embodiment of the present application.

[0050] It can be understood that the specific technical features and technical effects of the bridge arch rib provided in the embodiment of the present application are consistent with the arch rib closure device and the arch rib closure method, and the embodiments of the present application will not be repeated.

[0051] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the invention herein is not limited to technical solutions formed by a specific combination of the aforementioned technical features. It also encompasses other technical solutions formed by any combination of the aforementioned technical features or their equivalents, without departing from the inventive concept. For example, a technical solution formed by replacing the aforementioned features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. An arch rib closure device, characterized in that: include: A first tube body (10) and a second tube body (20), wherein a sleeve (30) is slidably provided in the first tube body (10), and a driving member is provided at one end of the sleeve (30) away from the second tube body (20), wherein the driving member is used to drive the sleeve (30) to move along the axial direction of the first tube body (10), and when the sleeve (30) moves toward a side close to the second tube body (20), the sleeve (30) can be inserted into the second tube body (20) to achieve connection between the first tube body (10) and the second tube body (20).

2. The arch rib closure device according to claim 1, characterized in that: The driving member comprises a falcon plate (50), the falcon plate (50) being fixedly connected to the sleeve (30), a falcon hole (40) extending along the axial direction of the first tube body (10) being provided on a side close to the second tube body (20), the falcon plate (50) at least partially passing through the falcon hole (40) and extending out of the first tube body (10).

3. The arch rib closure device according to claim 2, characterized in that: There are at least two falcon plates (50), each of the falcon plates (50) is evenly distributed on the sleeve (30) in the circumferential direction, and the falcon holes (40) are arranged in a one-to-one correspondence with the falcon plates (50).

4. The arch rib closure device according to claim 2, characterized in that: The driving member further comprises a driving device, wherein the driving device is fixedly connected to the falcon plate (50), and the driving device is used to drive the falcon plate (50) to move linearly along the falcon hole (40).

5. The arch rib closure device according to any one of claims 1 to 4, characterized in that: A guide head (301) is provided at one end of the sleeve (30) close to the second tube body (20).

6. The arch rib closure device according to any one of claims 1 to 4, characterized in that: The device further comprises a first arc-shaped member (60) and a second arc-shaped member (70) arranged opposite to each other, wherein the first arc-shaped member (60) and the second arc-shaped member (70) are covered on the outside of the sleeve (30) and are fixedly connected to the first tube body (10) and the second tube body (20), and the first arc-shaped member (60) and the second arc-shaped member (70) are buckled together to form an annular member, and the first arc-shaped member (60) and the second arc-shaped member (70) are fixedly connected.

7. A method for closure of an arch rib, characterized in that: The method is used to obtain the arch rib closure device according to any one of claims 1 to 6, and the method comprises: A sleeve (30) is slidably arranged in the first tube body (10); The driving member drives the sleeve (30) to move along a side close to the second tube body (20) in the first tube body (10), so that the sleeve (30) is inserted into the second tube body (20), and the two ends of the sleeve (30) are respectively welded and fixed to the inner walls of the first tube body (10) and the second tube body (20), thereby achieving the connection and fixation of the first tube body (10) and the second tube body (20).

8. The arch rib closure method according to claim 7, characterized in that: The driving member comprises a falcon plate (50) fixedly connected to the sleeve (30); a falcon hole (40) extending along the axial direction of the first tube body (10) is provided on a side close to the second tube body (20); After the two ends of the sleeve (30) are respectively welded and fixed to the inner walls of the first tube body (10) and the second tube body (20), the method further comprises: The falcon plate (50) extending outside the first tube body (10) is cut off, and the falcon hole (40) is plug-welded and filled.

9. The arch rib closure method according to claim 8, characterized in that: After the falcon hole (40) is plug-welded and filled, the method further comprises: The first arc-shaped member (60) and the second arc-shaped member (70) are buckled onto the outside of the sleeve (30), and both ends of the first arc-shaped member (60) and the second arc-shaped member (70) are welded and fixed to the first tube body (10) and the second tube body (20), and the ends of the first arc-shaped member (60) and the second arc-shaped member (70) that are close to each other are welded and fixed.

10. A bridge arch rib, characterized in that: The invention comprises the arch rib closure device according to any one of claims 1 to 6, or the arch rib closure device obtained by the arch rib closure method according to any one of claims 7 to 9.

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