Auxiliary supporting device for bridge construction

Abstract

The utility model provides an auxiliary supporting device for bridge construction, and relates to the technical field of bridge construction, the auxiliary supporting device for bridge construction comprises a top pedestal, a bottom pedestal and a middle pedestal, the top pedestal and the bottom pedestal are detachably connected to two ends of the middle pedestal respectively; the middle cushion seat comprises a plurality of cushion blocks which are stacked in the vertical direction, any two adjacent cushion blocks are detachably connected with each other, and a transverse connecting system and a longitudinal connecting system which are used for enhancing the structural stability are arranged on the outer wall of each cushion block. Compared with the prior art, the auxiliary supporting device for bridge construction has the advantages that the steel beams can be lowered directionally by gradually reducing the number of layers of the cushion blocks in a limited operation space, operation is facilitated, construction risks are reduced, and construction operability and efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, and more specifically, to an auxiliary support device for bridge construction. Background Technology

[0002] Steel structure bridges are a widely used and historically significant type of bridge structure in bridge engineering. They have advantages such as light weight, uniform material, and stable quality. Due to their unique structural advantages and excellent performance, they have become the mainstream choice for long-span bridges.

[0003] The incremental launching method is a commonly used method in steel bridge construction, particularly suitable for the construction of long-span bridges such as suspension bridges and cable-stayed bridges. However, when using the incremental launching method for steel bridge construction, it is necessary to reduce the overall height of the pads according to the working conditions. Conventional pad systems are bulky and heavy, making operation inconvenient, especially in confined spaces.

[0004] For example, the Longwangxi Bridge is a high-pier, long-span bridge. There are only four pier tops at the bridge site as support points for construction. This means that the jacking and lowering of the steel beams can only be carried out on the pier tops, which is a difficult operation due to the limited space. Utility Model Content

[0005] The problem this utility model aims to solve is: how to facilitate the jacking and lowering of steel beams in a limited working space.

[0006] This utility model provides a bridge construction auxiliary support device, including: a top pad, a bottom pad, and a middle pad. The top pad and the bottom pad are detachably connected to both ends of the middle pad. The middle pad includes a plurality of pads stacked vertically, and any two adjacent pads are detachably connected to each other. Each pad has a transverse connection system and a longitudinal connection system on its outer wall to enhance structural stability.

[0007] The bridge construction auxiliary support device provided by this utility model has the following beneficial effects compared with related technologies:

[0008] The bridge construction auxiliary support device described in this utility model can be used to simultaneously arrange, for example, four such devices on the top of a pier to meet different construction requirements. These four devices can be arranged in a rectangular pattern. The transverse and longitudinal connecting systems on each device are then interconnected to increase overall structural stability. During jacking or lowering of the beam, the overall height of the auxiliary support device needs to be reduced according to the working conditions. Taking beam lowering as an example, the auxiliary support device, in conjunction with a jack system, lowers the beam in a stepped manner. Each time the beam is lowered, the top support is removed, then the topmost support block of the middle support is removed, and the top support block is reinstalled on top of the middle support. This process maintains a fixed lowering height each time, hence the name "stepped lowering." This operation is repeated until the beam reaches the design elevation. Compared to related technologies, this bridge construction auxiliary support device allows for the directional lowering of steel beams within a limited working space by gradually reducing the number of support blocks, facilitating operation, reducing construction risks, and improving construction operability and efficiency.

[0009] Optionally, each end of the pad has a plurality of first ear plates evenly distributed along its circumferential outer wall, and each first ear plate has a first connecting hole. The first ear plates on any two adjacent pads are used to abut against each other, and the first connecting holes on any two abutting first ear plates are used to connect by bolts.

[0010] Optionally, the lower end of the top pad has a plurality of second ear plates evenly distributed along its circumferential outer wall, and each second ear plate has a second connecting hole. The plurality of second ear plates are used to abut against the plurality of first ear plates on the uppermost pad of the middle pad, and the second connecting hole on the second ear plate and the first connecting hole on the corresponding first ear plate are used to be connected by bolts.

[0011] Optionally, the upper end of the bottom pad is provided with a plurality of third ear plates along its circumferential outer wall, and each of the third ear plates is provided with a third connecting hole. The plurality of third ear plates are used to abut against the plurality of first ear plates on the pad block at the lowest end of the middle pad, and the third connecting hole on the third ear plate and the first connecting hole on the corresponding first ear plate are used to be connected by bolts.

[0012] Optionally, one end of the pad is provided with a first positioning boss and the other end is provided with a first positioning groove, and any two adjacent pads are used for positioning and installation by means of the first positioning boss and the first positioning groove on them respectively.

[0013] Optionally, the lower end of the top pad is provided with a second positioning boss, which is used for positioning and installation with the first positioning groove on the uppermost pad of the middle pad.

[0014] Optionally, the upper end of the bottom pad is provided with a second positioning groove, which is used for positioning and installation with the first positioning boss on the pad block at the lowest end of the middle pad.

[0015] Optionally, the top pad includes a top plate, a first steel pipe body, and a first stiffening plate. The top plate is connected to the upper end of the first steel pipe body, and the first stiffening plate is connected to the interior of the first steel pipe body.

[0016] Optionally, the bottom pad includes a base plate, a second steel pipe body, a second stiffening plate, and a third stiffening plate. The base plate is connected to the lower end of the second steel pipe body, the second stiffening plate is connected to the interior of the second steel pipe body, and a plurality of the third stiffening plates are circumferentially connected between the second steel pipe body and the base plate.

[0017] Optionally, the transverse connection system includes a first steel plate, which is connected to the outer wall of the pad, and a first mounting hole is provided on the first steel plate;

[0018] The longitudinal connection system includes a second steel plate, which is connected to the outer wall of the pad, and a second mounting hole is provided on the second steel plate. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the bridge construction auxiliary support device according to an embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the pad block in an embodiment of the present utility model. Figure 1 ;

[0021] Figure 3 This is a schematic diagram of the structure of the pad block in an embodiment of the present utility model. Figure 2 ;

[0022] Figure 4 This is a schematic diagram of the structure of the top pad according to an embodiment of the present utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the bottom pad in an embodiment of the present utility model;

[0024] Figure 6 This is a schematic diagram of the structure of four bridge construction auxiliary support devices connected in an embodiment of this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] Top pad 1, second ear plate 11, second positioning boss 12, top plate 13, first steel pipe body 14, first stiffening plate 15;

[0027] Bottom pad 2, third ear plate 21, second positioning groove 22, bottom plate 23, second steel pipe body 24, second stiffening plate 25, third stiffening plate 26;

[0028] Pad 3, First Ear Plate 31, First Positioning Boss 32, First Positioning Groove 33;

[0029] First steel plate 4;

[0030] Second steel plate 5; Detailed Implementation

[0031] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0032] In the description of this utility model, the orientation or positional relationship indicated by terms such as "up", "down", "left", "right", "top", "bottom", "front", "back", "inner" and "outer" is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing this utility model and is not intended to indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the scope of protection of this utility model.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] In the description of this specification, references to terms such as "embodiment," "one embodiment," and "one implementation" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or implementation of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.

[0035] Furthermore, in the attached diagram, the Z-axis represents the vertical direction, that is, the up and down position, and the positive direction of the Z-axis (that is, the direction the arrow of the Z-axis points) represents up, and the negative direction of the Z-axis (that is, the direction opposite to the positive direction of the Z-axis) represents down.

[0036] It should also be noted that the aforementioned Z-axis designation is only for the purpose of facilitating the description of this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on this utility model.

[0037] like Figure 1 As shown, the bridge construction auxiliary support device of this utility model includes: a top pad 1, a bottom pad 2 and a middle pad. The top pad 1 and the bottom pad 2 are detachably connected to the two ends of the middle pad. The middle pad includes a plurality of pad blocks 3 stacked in the vertical direction, and any two adjacent pad blocks 3 are detachably connected to each other. Each pad block 3 has a transverse connection system and a longitudinal connection system on its outer wall to enhance structural stability.

[0038] In this embodiment, to meet different construction requirements, for example, four auxiliary support devices for bridge construction can be simultaneously arranged on the top of one pier as needed. These devices are fixed to the top of the pier by bottom pads 2, and the four auxiliary support devices can be arranged in a rectangular pattern (see attached diagram). Figure 6 (As shown), then the transverse and longitudinal connecting systems on each bridge construction auxiliary support device are interconnected to increase the overall structural stability. During jacking or beam lowering construction, the overall height of this bridge construction auxiliary support device needs to be reduced according to the working conditions. Taking beam lowering construction as an example, this bridge construction auxiliary support device, in conjunction with the jack system, lowers the beam in a stepped manner. That is, each time the beam is lowered, the top pad 1 is removed first, and then a pad located at the very top of the middle pad (see attached) is removed. Figure 1 The pad 3 (in the positive Z-axis direction) is placed on top of the middle pad, and then the top pad 1 is reinstalled on top of the middle pad. This ensures a fixed height for each beam drop, hence the name "stepped beam drop." This process is repeated until the beam reaches the design elevation. Compared to related technologies, this bridge construction auxiliary support device allows for the directional lowering of steel beams within a limited working space by gradually reducing the number of pad layers. This facilitates operation, reduces construction risks, and improves construction operability and efficiency.

[0039] Optionally, multiple first ear plates 31 are evenly distributed along the circumferential outer wall at both ends of the pad 3, and each first ear plate 31 is provided with a first connecting hole. The first ear plates 31 on any two adjacent pads 3 are used to abut against each other, and the first connecting holes on any two abutting first ear plates 31 are used to connect by bolts.

[0040] In this embodiment, in conjunction with the appendix Figure 2 and attached Figure 3 As shown, the pad 3 can be a cylindrical structure, which can reduce the overall weight of the pad 3 while ensuring its structural strength. Multiple first ear plates 31 are evenly distributed along the circumferential outer wall at both ends of the pad 3, for example, as shown in the attached diagram. Figure 2 and attached Figure 3 The pad 3 shown has four first ear plates 31 evenly distributed along its circumferential outer wall at both ends. Each first ear plate 31 has a first connecting hole, which can be a threaded hole. When any two pads 3 need to be connected to each other, the two pads 3 are first stacked together so that the first ear plates 31 on the two pads 3 abut against each other and the first connecting holes on them are coaxial. In this way, the two pads 3 can be connected into one piece by bolts. Then the above operation is repeated until all the pads 3 are connected into one piece.

[0041] Optionally, a plurality of second ear plates 11 are evenly distributed along the circumferential outer wall of the lower end of the top pad 1, and each second ear plate 11 is provided with a second connecting hole. The plurality of second ear plates 11 are used to abut against a plurality of first ear plates 31 on the uppermost pad block 3 of the middle pad, and the second connecting hole on the second ear plate 11 and the first connecting hole on the corresponding first ear plate 31 are used to connect by bolts.

[0042] In this embodiment, in conjunction with the appendix Figure 4 As shown, multiple second ear plates 11, the same number as the first ear plates 31, are evenly distributed along the circumferential outer wall of the lower end of the top pad 1. Each second ear plate 11 is provided with a second connecting hole, which can be a threaded hole. When the top pad 1 needs to be connected to the pad block 3 at the top of the middle pad, the top pad 1 is first stacked on the pad block 3, so that the second ear plates 11 on the top pad 1 and the first ear plates 31 on the pad block 3 abut against each other, and the second connecting hole on the second ear plate 11 is coaxial with the first connecting hole on the first ear plate 31. In this way, the top pad 1 and the pad block 3 can be connected as one unit by bolts.

[0043] Optionally, the upper end of the bottom pad 2 is provided with a plurality of third ear plates 21 evenly distributed along its circumferential outer wall, and each of the third ear plates 21 is provided with a third connecting hole. The plurality of third ear plates 21 are used to abut against the plurality of first ear plates 31 on the pad block 3 at the lowest end of the middle pad, and the third connecting hole on the third ear plate 21 and the first connecting hole on the corresponding first ear plate 31 are used to connect by bolts.

[0044] In this embodiment, in conjunction with the appendix Figure 5 As shown, at the upper end of the bottom pad 2 (attached) Figure 1Multiple third ear plates 21, the same number as the first ear plate 31, are evenly distributed along the outer circumferential direction of the Z-axis. Each third ear plate 21 has a third connecting hole, which can be a threaded hole. When the pad 3 at the bottom of the middle pad needs to be connected to the top of the bottom pad 2, the pad 3 is first stacked on the bottom pad 2, so that the third ear plate 21 on the bottom pad 2 abuts against the first ear plate 31 on the pad 3, and the third connecting hole on the third ear plate 21 is coaxial with the first connecting hole on the first ear plate 31. In this way, the bottom pad 2 and the pad 3 can be connected as one unit by bolts.

[0045] Optionally, one end of the pad 3 is provided with a first positioning boss 32 and the other end is provided with a first positioning groove 33. Any two adjacent pads 3 are used for positioning and installation by means of the first positioning boss 32 and the first positioning groove 33 on them respectively.

[0046] In this embodiment, in conjunction with the appendix Figure 2 and attached Figure 3 As shown, the main structure of the pad 3 can be a cylindrical structure. A first positioning boss 32 is provided on one end face of the pad 3. The first positioning boss 32 can be an annular protrusion. A first positioning groove 33 is provided on the other end face of the pad 3. The first positioning groove 33 can be a stepped groove that matches the shape of the first positioning boss 32. Any two adjacent pads 3 can be positioned and installed by the first positioning boss 32 and the first positioning groove 33 on them respectively.

[0047] In other embodiments, inclined surfaces can be milled on the first positioning boss 32 and the first positioning groove 33 by machining. This will help to position and install the pad 3 and facilitate the transmission of force.

[0048] Optionally, a second positioning boss 12 is provided at the lower end of the top pad 1, and the second positioning boss 12 is used for positioning and installation with the first positioning groove 33 on the uppermost pad block 3 of the middle pad.

[0049] In this embodiment, in conjunction with the appendix Figure 1 and attached Figure 4 As shown, the lower end face of the top pad 1 (attached) Figure 1 A second positioning boss 12 is provided in the opposite direction of the Z-axis. The second positioning boss 12 can be a ring-shaped protrusion. The top pad 1 can be positioned and installed in the first positioning groove 33 on the pad block 3 located at the uppermost end of the middle pad through the second positioning boss 12.

[0050] In other embodiments, the second positioning boss 12 can be machined with a beveled surface, which facilitates the positioning of the stepped bevel of the first positioning groove 33 mounted on the pad block 3, and also helps in the transmission of force.

[0051] Optionally, the upper end of the bottom pad 2 is provided with a second positioning groove 22, which is used for positioning and installation with the first positioning boss 32 on the pad block 3 at the lowest end of the middle pad.

[0052] In this embodiment, in conjunction with the appendix Figure 1 and attached Figure 5 As shown, the upper end face of the bottom pad 2 (attached) Figure 1 A second positioning groove 22 is provided in the positive direction of the Z-axis. The second positioning groove 22 can be a stepped groove that matches the shape of the first positioning boss 32. The pad 3 can be positioned and installed in the second positioning groove 22 through the first positioning boss 32.

[0053] Optionally, the top pad 1 includes a top plate 13, a first steel pipe body 14, and a first stiffening plate 15. The top plate 13 is connected to the upper end of the first steel pipe body 14, and the first stiffening plate 15 is connected to the interior of the first steel pipe body 14.

[0054] In this embodiment, in conjunction with the appendix Figure 4 As shown, the top plate 13 can be connected to one end of the first steel pipe body 14 by welding or integral molding. The top plate 13 can be a circular plate, and the diameter of the top plate 13 is larger than the diameter of the first steel pipe body 14. The upper end of the top plate 13 is used to support the steel beam, the jack system, and the transverse movement system, etc. A first stiffening plate 15 is connected inside the first steel pipe body 14. The first stiffening plate 15 includes a transverse stiffening plate and a longitudinal stiffening plate, which plays the role of strengthening the structural strength of the top pad 1.

[0055] Optionally, the bottom pad 2 includes a base plate 23, a second steel pipe body 24, a second stiffening plate 25, and a third stiffening plate 26. The base plate 23 is connected to the lower end of the second steel pipe body 24, the second stiffening plate 25 is connected to the interior of the second steel pipe body 24, and a plurality of the third stiffening plates 26 are circumferentially connected between the second steel pipe body 24 and the base plate 23.

[0056] In this embodiment, in conjunction with the appendix Figure 5As shown, the base plate 23 can be connected to one end of the second steel pipe body 24 by welding or integral molding. The base plate 23 can be a rectangular plate, and the size of the base plate 23 is larger than the end face size of the second steel pipe body 24. The base plate 23 is used to contact the top of the pier. A second stiffening plate 25 is connected inside the second steel pipe body 24. The second stiffening plate 25 includes a transverse stiffening plate and a longitudinal stiffening plate, which plays a role in strengthening the structural strength of the bottom pad 2. Furthermore, multiple third stiffening plates 26 are connected at intervals between the second steel pipe body 24 and the base plate 23 to further strengthen the structural strength of the bottom pad 2.

[0057] Optionally, the transverse connection system includes a first steel plate 4, which is connected to the outer wall of the pad 3, and a first mounting hole is provided on the first steel plate 4;

[0058] The longitudinal connection system includes a second steel plate 5, which is connected to the outer wall of the pad block 3, and a second mounting hole is provided on the second steel plate 5.

[0059] In this embodiment, in conjunction with the appendix Figure 6 As shown, the first steel plate 4 can be connected to the outer wall of the pad 3 by welding, and a first mounting hole is provided on the first steel plate 4. The first mounting hole can be a threaded hole. Two adjacent pads 3 can be connected to the two first steel plates 4 respectively by channel steel. The length of the channel steel can be processed as needed, and holes are drilled at both ends. In this way, the channel steel can be connected between the two first steel plates 4 by bolts, thereby enhancing the overall structural stability.

[0060] Similarly, the second steel plate 5 can be welded to the outer wall of the pad 3, and a second mounting hole is provided on the second steel plate 5. The second mounting hole can be a threaded hole. Two longitudinally adjacent pads 3 can be connected to the two second steel plates 5 respectively by channel steel. The length of the channel steel can be processed as needed, and holes are drilled at both ends. In this way, the channel steel can be bolted between the two second steel plates 5, thereby enhancing the overall structural stability.

[0061] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature.

[0062] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. A bridge construction auxiliary support device characterized by, The utility model relates to a kind of modularized cushion block and modularized cushion block system, including: Top pad (1), bottom pad (2) and middle pad, the top pad (1) and the bottom pad (2) are respectively detachably connected at two ends of the middle pad, the middle pad includes a plurality of vertically stacked cushion blocks (3), and any two adjacent cushion blocks (3) are detachably connected with each other, a lateral connecting system and a longitudinal connecting system for enhancing structural stability are respectively provided on the outer wall of each cushion block (3).

2. The bridge construction auxiliary support device according to claim 1, characterized in that, A plurality of first lugs (31) are uniformly distributed along the circumferential outer wall of both ends of the cushion block (3), and a first connecting hole is formed in each first lug (31), the first lugs (31) on any two adjacent cushion blocks (3) are used to abut against each other, and the first connecting holes in any two abutting first lugs (31) are used to be connected by bolts.

3. The bridge construction auxiliary support apparatus according to claim 2, wherein A plurality of second lugs (11) are uniformly distributed along the circumferential outer wall of the lower end of the top pad (1), and a second connecting hole is formed in each second lug (11), the plurality of second lugs (11) are used to abut against the plurality of first lugs (31) on the cushion blocks (3) at the uppermost end of the middle pad respectively, and the second connecting holes in the second lugs (11) and the first connecting holes in the corresponding first lugs (31) are used to be connected by bolts.

4. The bridge construction auxiliary support device according to claim 2, characterized by, A plurality of third lugs (21) are uniformly distributed along the circumferential outer wall of the upper end of the bottom pad (2), and a third connecting hole is formed in each third lug (21), the plurality of third lugs (21) are used to abut against the plurality of first lugs (31) on the cushion blocks (3) at the lowermost end of the middle pad respectively, and the third connecting holes in the third lugs (21) and the first connecting holes in the corresponding first lugs (31) are used to be connected by bolts.

5. The bridge construction auxiliary support device according to claim 1, characterized by One end of the cushion block (3) is provided with a first positioning boss (32), and the other end is provided with a first positioning groove (33), any two adjacent cushion blocks (3) are used to be positioned and installed through the first positioning boss (32) and the first positioning groove (33) thereon respectively.

6. The bridge construction auxiliary support device according to claim 5, wherein The lower end of the top pad (1) is provided with a second positioning boss (12), which is used to be positioned and installed with the first positioning groove (33) on the cushion block (3) at the uppermost end of the middle pad.

7. The bridge construction auxiliary support device according to claim 5, characterized by The upper end of the bottom pad (2) is provided with a second positioning groove (22), which is used to be positioned and installed with the first positioning boss (32) on the cushion block (3) at the lowermost end of the middle pad.

8. The bridge construction auxiliary support device according to claim 1, characterized by, The top pad (1) includes a top plate (13), a first steel pipe body (14), and a first stiffening plate (15), the top plate (13) is connected to the upper end of the first steel pipe body (14), and the first stiffening plate (15) is connected to the inside of the first steel pipe body (14).

9. The bridge construction auxiliary support device according to claim 1, characterized by, The bottom pad (2) comprises a bottom plate (23), a second steel pipe body (24), a second stiffening plate (25) and a third stiffening plate (26), the bottom plate (23) is connected to the lower end of the second steel pipe body (24), the second stiffening plate (25) is connected to the inside of the second steel pipe body (24), and a plurality of third stiffening plates (26) are connected between the second steel pipe body (24) and the bottom plate (23) in the circumferential direction.

10. The bridge construction auxiliary support device according to claim 1, characterized by, The transverse connecting system comprises a first steel plate (4), the first steel plate (4) is connected to the outer wall of the cushion block (3), and a first mounting hole is formed in the first steel plate (4); The longitudinal connecting system comprises a second steel plate (5), the second steel plate (5) is connected to the outer wall of the cushion block (3), and a second mounting hole is formed in the second steel plate (5).

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