Pushing support based on existing bridge pier

Abstract

The utility model relates to a pushing support based on an existing pier, and relates to the technical field of bridge pushing operation support construction, the pushing support comprises a pier top support force transmission structure, the pier top support force transmission structure is used for being arranged at the top of an existing pier column, and the two ends of the pier top support force transmission structure extend out of the vertical projection range of the existing pier column in the transverse bridge direction; the pier top support force transmission structure is located between an existing pier column and an original bridge steel plate beam. And the vertical force transmission structures are arranged at the two ends, extending out of the vertical projection range of the existing pier column in the transverse bridge direction, of the pier top support force transmission structures, located on the outer side of the original bridge steel plate beam in the transverse bridge direction and used for supporting the pushing platform. Due to the fact that the pier top support force transmission structure is located between the existing pier column and the original bridge steel plate beam, the two ends of the pier top support force transmission structure extend out of the vertical projection range of the existing pier column in the transverse bridge direction, the vertical force transmission structures are arranged at the two ends, extending out of the vertical projection range of the existing pier column in the transverse bridge direction, of the pier top support force transmission structure, the pier top support force transmission structure can be arranged in a small space, and the structure is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge jacking operation support construction, in particular to a jacking support based on an existing bridge pier. Background Art

[0002] With the rapid development of the bridge industry and the continuous improvement of construction technology, jacking construction has become a common method during bridge construction and demolition. Jacking platforms are indispensable for long-distance jacking. During the jacking platform installation process, problems often arise, such as conflicts between existing structures and the jacking platform, limited clearance due to the existing structure, and difficulties in structural installation. Furthermore, narrow piers make it difficult to install bracket systems, the surrounding environment cannot support the use of large lifting equipment, and the pier top support structure cannot be directly hoisted to the designated location for installation.

[0003] In the prior art, there is a space-constrained inclined vertical jacking pier support with patent number CN114808672A, which includes a pedestal, a pier body arranged in the middle of the pedestal, and a vertical support structure arranged around the outer ring of the pier body. The vertical support structure gradually inclines outward from the pedestal toward the pier body, one end of the vertical support structure is fixed on the pedestal, and the other end of the vertical support structure is fixed to the pier body through a prestressed tension structure. A buttress structure is also arranged between the vertical support structure and the pier body. The present invention uses its own pedestal as the foundation of the pier side support, and there is no need to re-drive piles and bored piles next to the pier, thereby reducing temporary structures and avoiding the problem of limited construction space. At the same time, its structural form is simple and reasonable, safe and reliable, and can meet the force requirements of steel beam jacking.

[0004] However, the space is limited and a vertical support structure needs to be installed on the base in the inclined jacking pier support, which requires a large vertical space. When the pier column is too high, the height of the vertical support needs to be further increased, resulting in complex structure, troublesome installation, and waste of materials. Utility Model Content

[0005] The present application provides a jacking bracket based on an existing bridge pier, which can solve the problem in the prior art that the space is limited and the inclined jacking pier side bracket needs to install a vertical support structure on the base, which has a large requirement for vertical space. When the pier column is too high, the height of the vertical support needs to be further increased, resulting in complex structure, troublesome installation, and waste of materials.

[0006] In a first aspect, an embodiment of the present application provides a jacking support based on an existing bridge pier, comprising:

[0007] A pier top support force transmission structure is used to be installed on the top of the existing pier column, with both ends extending in the transverse direction of the bridge beyond the vertical projection range of the existing pier column, and the pier top support force transmission structure is located between the existing pier column and the original bridge steel plate girder;

[0008] A vertical force transmission structure is arranged at both ends of the vertical projection range of the existing pier column extending out along the transverse direction of the bridge from the pier top support force transmission structure, and is located on the outside of the original bridge steel plate beam along the transverse direction of the bridge. The vertical force transmission structure is used to support the jacking platform.

[0009] In combination with the first aspect, in one embodiment, the pier top support force transmission structure includes two transverse distribution beams arranged at intervals along the longitudinal bridge direction, and the two transverse distribution beams are used to be arranged at both ends of the existing support, and the lower side of the transverse distribution beam is used to connect with the top of the existing pier column, and the two ends of the transverse distribution beam extend out of the vertical projection range of the existing pier column along the transverse bridge direction, and both ends of the transverse distribution beam are provided with vertical force transmission structures.

[0010] In combination with the first aspect, in one embodiment, the pier top support force transmission structure further includes a connection system, which is arranged between the two transverse distribution beams and is respectively connected to the two transverse distribution beams.

[0011] In combination with the first aspect, in one embodiment, the connection system includes a plurality of first connection systems, each of which is located between adjacent existing supports, and each of which includes:

[0012] Two first connecting rods are spaced apart along the transverse direction of the bridge, the first connecting rods are arranged along the longitudinal direction of the bridge, and both ends of the first connecting rods are respectively connected to the two transverse distribution beams;

[0013] Two first cross rod units are arranged along the longitudinal bridge direction, and the first cross rod unit is X-shaped, with two sides respectively connected to the two first connecting rods.

[0014] In combination with the first aspect, in one embodiment, the connection system further includes two second connection systems, the two second connection systems are respectively located at both ends of the transverse distribution beam and correspond to the positions of the vertical force transmission structure, and the second connection systems include:

[0015] Two second connecting rods are spaced apart along the transverse direction of the bridge, the second connecting rods are arranged along the longitudinal direction of the bridge, and both ends of the second connecting rods are respectively connected to the two transverse distribution beams;

[0016] The second cross rod unit is in an X shape, and two sides thereof are respectively connected to two second connecting rods.

[0017] In combination with the first aspect, in one embodiment, the vertical force transmission structure includes a column and a column head and a column foot respectively arranged at the upper and lower ends of the column, and the column is used to support the jacking platform through the column head and is connected to the transverse distribution beam through the column foot.

[0018] In combination with the first aspect, in one embodiment, a third connection system is provided between the two columns located on the same side of the two transverse distribution beams, and the third connection system includes:

[0019] Two third connecting rods spaced apart in the height direction, with both ends of the third connecting rods connected to the corresponding two columns respectively;

[0020] The connecting oblique rod is located between the two third connecting rods, and both ends of the connecting oblique rod are respectively connected to the two third connecting rods.

[0021] In combination with the first aspect, in one embodiment, diagonal braces are respectively provided on both sides of the column along the transverse direction of the bridge, one end of the diagonal brace is connected to the column, and the other end is connected to the transverse distribution beam.

[0022] In combination with the first aspect, in one embodiment, it further includes a plurality of embedded parts, which are used to be arranged on the top of the existing pier and used to connect the transverse distribution beam.

[0023] In combination with the first aspect, in one embodiment, the height of the pier top support force transmission structure is less than the height of the existing support.

[0024] The beneficial effects of the technical solutions provided in the embodiments of the present application include:

[0025] When constructing the jacking support based on the existing bridge pier, the pier top support force transmission structure is moved between the existing pier column and the original bridge steel plate beam by hoisting and connected to the existing pier column, and the vertical force transmission structure is moved to the two ends of the vertical projection range of the pier top support force transmission structure along the transverse direction of the bridge extending from the existing pier column by hoisting. Since the pier top support force transmission structure is located between the existing pier column and the original bridge steel plate beam, and both ends extend along the transverse direction of the bridge extending from the vertical projection range of the existing pier column, the vertical force transmission structure is arranged at the two ends of the vertical projection range of the pier top support force transmission structure along the transverse direction of the bridge extending from the existing pier column, and can be arranged in a smaller space with a simple structure. This solves the problem in the prior art that the space is limited in the inclined jacking pier support, and the vertical space requirement is large. When the pier column is too high, the height of the vertical support needs to be further increased, resulting in a complex structure, troublesome installation, and waste of materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0027] Figure 1 This is a structural schematic diagram of an embodiment of the utility model of a jacking support based on an existing bridge pier.

[0028] Figure 2 This is a side structural schematic diagram of an embodiment of the utility model of a jacking support based on an existing bridge pier.

[0029] Figure 3 This is a schematic top view of the structure of an embodiment of a jacking support based on an existing bridge pier of the utility model.

[0030] Figure 4 This is a structural schematic diagram of installing a transverse distribution beam in an embodiment of a jacking support construction method based on an existing bridge pier in the utility model.

[0031] Figure 5 This is a structural schematic diagram of installing a vertical force transmission structure in an embodiment of the utility model's method for constructing a jacking support based on an existing bridge pier.

[0032] Figure 6 This is a structural schematic diagram of installing a cushion beam in an embodiment of a jacking support construction method based on an existing bridge pier in the utility model.

[0033] In the figure: 1. Pier top support force transmission structure; 11. Horizontal distribution beam; 12. Connection system; 121. First connection system; 1211. First connecting rod; 1212. First cross rod unit; 122. Second connection system; 1221. Second connecting rod; 1222. Second cross rod unit; 13. Embedded parts; 2. Existing pier columns; 3. Original bridge steel plate beam; 4. Vertical force transmission structure; 41. Column; 42. Column head; 43. Column foot; 44. Diagonal brace; 5. Existing support; 6. Third connection system; 61. Third connecting rod; 62. Connecting diagonal rod; 7. Pad beam; 8. Transport vehicle; 9. Shoulder pole beam; 10. Ballast block. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0035] The embodiment of the present application provides a jacking bracket based on an existing bridge pier, which can solve the problem in the prior art that the space is limited and the inclined jacking pier side bracket needs to install a vertical support structure on the base, and the vertical space requirement is large. When the pier column is too high, the height of the vertical support needs to be further increased, resulting in complex structure, troublesome installation, and waste of materials.

[0036] In the prior art, an existing support 5 is provided on the existing pier 2 , and the original bridge steel plate beam 3 is supported by the existing support 5 .

[0037] like Figure 1-Figure 3 As shown, on the one hand, the present application provides a jacking support based on an existing bridge pier, which includes:

[0038] The pier top support force transmission structure 1 is used to be installed on the top of the existing pier column 2, and both ends extend out of the vertical projection range of the existing pier column 2 along the transverse direction of the bridge. The pier top support force transmission structure 1 is located between the existing pier column 2 and the original bridge steel plate girder 3;

[0039] The vertical force transmission structure 4 is arranged at both ends of the vertical projection range of the existing pier column 2 extending out of the pier top support force transmission structure 1 along the transverse direction of the bridge, and is located on the outside of the original bridge steel plate beam 3 along the transverse direction of the bridge. The vertical force transmission structure 4 is used to support the jacking platform.

[0040] When constructing the jacking support based on the existing bridge pier, the pier top support force transmission structure 1 is moved between the existing pier column 2 and the original bridge steel plate beam 3 by hoisting and connected to the existing pier column 2, and the vertical force transmission structure 4 is moved to the two ends of the vertical projection range of the pier top support force transmission structure 1 extending along the transverse direction of the bridge from the existing pier column 2 by hoisting. Since the pier top support force transmission structure 1 is located between the existing pier column 2 and the original bridge steel plate beam 3, and both ends extend along the transverse direction of the bridge from the vertical projection range of the existing pier column 2, the vertical force transmission structure 4 is arranged at the two ends of the vertical projection range of the pier top support force transmission structure 1 extending along the transverse direction of the bridge from the existing pier column 2, and can be arranged in a smaller space with a simple structure. This solves the problem in the prior art that the space is limited in the inclined jacking pier support, and the vertical space requirement is large. When the pier column is too high, the height of the vertical support needs to be further increased, resulting in a complex structure, troublesome installation, and waste of materials.

[0041] like Figure 1-Figure 3 As shown, in some optional embodiments, the pier top support force transmission structure 1 includes two transverse distribution beams 11 spaced apart along the longitudinal bridge direction, the two transverse distribution beams 11 are used to be set at both ends of the existing support 5, the lower side of the transverse distribution beam 11 is used to connect with the top of the existing pier 2, and the two ends of the transverse distribution beam 11 extend out of the vertical projection range of the existing pier 2 along the transverse bridge direction, and both ends of the transverse distribution beam 11 are provided with a vertical force transmission structure 4.

[0042] In this embodiment, the structure of the pier top support force transmission structure 1 is specifically described. The pier top support force transmission structure 1 includes two transverse distribution beams 11 spaced apart along the longitudinal bridge direction. The two transverse distribution beams 11 are used to be set at both ends of the existing support 5. The lower side of the transverse distribution beam 11 is used to connect with the top of the existing pier 2. The two ends of the transverse distribution beam 11 extend out of the vertical projection range of the existing pier 2 along the transverse bridge direction. Both ends of the transverse distribution beam 11 are provided with vertical force transmission structures 4. The structure is simple, easy to install, and easy to manufacture.

[0043] like Figure 3 As shown, in some optional embodiments, the pier top support force transmission structure 1 further includes a connection system 12 , which is disposed between the two transverse distribution beams 11 and is respectively connected to the two transverse distribution beams 11 .

[0044] In this embodiment, the pier top support force transmission structure 1 also includes a connection system 12, which is arranged between the two transverse distribution beams 11 and is respectively connected to the two transverse distribution beams 11, thereby strengthening the structural strength of the pier top support force transmission structure 1 and improving the safety of the jacking support based on the existing bridge pier.

[0045] like Figure 3 As shown, in some optional embodiments, the connection system 12 includes a plurality of first connection systems 121. The first connection systems 121 are located between adjacent existing supports 5. The first connection systems 121 include:

[0046] Two first connecting rods 1211 are spaced apart along the transverse direction of the bridge. The first connecting rods 1211 are arranged along the longitudinal direction of the bridge, and both ends of the first connecting rods 1211 are respectively connected to the two transverse distribution beams 11;

[0047] The two first cross rod units 1212 are arranged along the longitudinal bridge direction. The first cross rod unit 1212 is X-shaped, and the two sides are respectively connected to the two first connecting rods 1211.

[0048] In this embodiment, the connection system 12 includes multiple first connection systems 121, and the first connection system 121 is located between adjacent existing supports 5. The first connection system 121 includes two first connection rods 1211 and two first cross rod units 1212 arranged at intervals along the transverse bridge direction. The first connection rod 1211 is arranged along the longitudinal bridge direction, and its two ends are respectively connected to the two transverse distribution beams 11. The two first cross rod units 1212 are arranged along the longitudinal bridge direction. The first cross rod unit 1212 is X-shaped, and its two sides are respectively connected to the two first connection rods 1211. It has a simple structure, is easy to manufacture, and has high structural stability, which further improves the safety of the jacking support based on the existing bridge piers.

[0049] like Figure 3As shown, in some optional embodiments, the connection system 12 further includes two second connection systems 122, which are respectively located at both ends of the transverse distribution beam 11 and correspond to the positions of the vertical force transmission structure 4. The second connection system 122 includes:

[0050] Two second connecting rods 1221 are spaced apart along the transverse direction of the bridge. The second connecting rods 1221 are arranged along the longitudinal direction of the bridge, and both ends of the second connecting rods 1221 are respectively connected to the two transverse distribution beams 11;

[0051] The second cross rod unit 1222 is in an X shape, and its two sides are respectively connected to the two second connecting rods 1221.

[0052] In this embodiment, the connection system 12 also includes two second connection systems 122, which are respectively located at the two ends of the transverse distribution beam 11 and correspond to the position of the vertical force transmission structure 4. The second connection system 122 includes two second connection rods 1221 spaced apart along the transverse bridge direction and a second cross rod unit 1222, wherein the second connection rod 1221 is arranged along the longitudinal bridge direction, and its two ends are respectively connected to the two transverse distribution beams 11, and the second cross rod unit 1222 is X-shaped, and its two sides are respectively connected to the two second connection rods 1221. It has a simple structure, is easy to manufacture, and has high structural stability, which further improves the safety of the jacking support based on the existing bridge piers.

[0053] like Figure 1-Figure 3 As shown, in some optional embodiments, the vertical force transmission structure 4 includes a column 41 and a column head 42 and a column foot 43 respectively arranged at the upper and lower ends of the column 41. The column 41 is used to support the jacking platform through the column head 42 and is connected to the transverse distribution beam 11 through the column foot 43.

[0054] In this embodiment, the structure of the vertical force transmission structure 4 is specifically described. The vertical force transmission structure 4 includes a column 41 and a column head 42 and a column foot 43 respectively arranged at the upper end and the lower end of the column 41. The column 41 is used to support the jacking platform through the column head 42 and is connected to the horizontal distribution beam 11 through the column foot 43. The structure is simple and easy to manufacture.

[0055] In this example, a cushion beam 7 is provided at the upper ends of the two columns 41 located on the same side of the two transverse distribution beams 11 , and the column heads 42 are connected to the cushion beam 7 .

[0056] like Figure 2 As shown, in some optional embodiments, a third connection system 6 is provided between two columns 41 located on the same side of two transverse distribution beams 11. The third connection system 6 includes:

[0057] Two third connecting rods 61 spaced apart in the height direction, with both ends of the third connecting rod 61 connected to the corresponding two upright posts 41 respectively;

[0058] The connecting oblique rod 62 is located between the two third connecting rods 61 , and both ends of the connecting oblique rod 62 are respectively connected to the two third connecting rods 61 .

[0059] In this embodiment, a third connecting system 6 is provided between the two columns 41 on the same side of the two transverse distribution beams 11. The third connecting system 6 includes two third connecting rods 61 spaced apart along the height direction and a connecting diagonal rod 62, wherein the two ends of the third connecting rod 61 are respectively connected to the corresponding two columns 41, the connecting diagonal rod 62 is located between the two third connecting rods 61, and the two ends of the connecting diagonal rod 62 are respectively connected to the two third connecting rods 61. The structure is simple, easy to manufacture, and has high structural stability, which further improves the safety of the jacking support based on the existing bridge pier.

[0060] like Figure 1 As shown, in some optional embodiments, diagonal braces 44 are provided on both sides of the column 41 along the transverse bridge direction, and one end of the diagonal brace 44 is connected to the column 41 and the other end is connected to the transverse distribution beam 11.

[0061] In this embodiment, diagonal braces 44 are provided on both sides of the column 41 along the transverse direction of the bridge. One end of the diagonal brace 44 is connected to the column 41, and the other end is connected to the transverse distribution beam 11, thereby improving the stability of the column 41 and further improving the safety of the jacking support based on the existing bridge pier.

[0062] like Figure 3 As shown, in some optional embodiments, a plurality of embedded parts 13 are further included. The embedded parts 13 are used to be arranged on the top of the existing pier 2 and to connect the transverse distribution beam 11.

[0063] In this embodiment, the jacking support based on the existing bridge pier also includes a plurality of embedded parts 13. The embedded parts 13 are used to be arranged on the top of the existing pier column 2 and to connect the transverse distribution beam 11 for easy connection.

[0064] In some optional embodiments, the height of the pier top support force transmission structure 1 is less than the height of the existing support 5 .

[0065] In this embodiment, the height of the pier top support force transmission structure 1 is smaller than the height of the existing support 5 , which facilitates placing the pier top support force transmission structure 1 between the existing pier column 2 and the original bridge steel plate beam 3 .

[0066] In this example, the pier top support force transmission structure 1 can also be filled with rigid materials to facilitate clamping and form a system that bears common force.

[0067] like Figures 1-6 As shown, on the other hand, the present application also provides a method for constructing a jacking support based on an existing bridge pier, which is used to construct the above-mentioned jacking support based on an existing bridge pier, including the following steps:

[0068] Move the pier top support force transmission structure 1 between the existing pier column 2 and the original bridge steel plate beam 3 by hoisting, and connect it to the existing pier column 2;

[0069] The vertical force transmission structure 4 is moved by hoisting to the two ends of the vertical projection range of the pier top support force transmission structure 1 extending out of the existing pier column 2 along the transverse direction of the bridge.

[0070] When constructing the jacking support based on the existing bridge pier, the pier top support force transmission structure 1 is moved between the existing pier column 2 and the original bridge steel plate beam 3 by hoisting and connected to the existing pier column 2, and the vertical force transmission structure 4 is moved to the two ends of the vertical projection range of the pier top support force transmission structure 1 extending along the transverse direction of the bridge from the existing pier column 2 by hoisting. Since the pier top support force transmission structure 1 is located between the existing pier column 2 and the original bridge steel plate beam 3, and both ends extend along the transverse direction of the bridge from the vertical projection range of the existing pier column 2, the vertical force transmission structure 4 is arranged at the two ends of the vertical projection range of the pier top support force transmission structure 1 extending along the transverse direction of the bridge from the existing pier column 2, and can be arranged in a smaller space with a simple structure. This solves the problem in the prior art that the space is limited in the inclined jacking pier support, and the vertical space requirement is large. When the pier column is too high, the height of the vertical support needs to be further increased, resulting in a complex structure, troublesome installation, and waste of materials.

[0071] In this case, before the pier top support force transmission structure 1 is moved between the existing pier column 2 and the original bridge steel plate beam 3 by hoisting and connected to the existing pier column 2, the top surface of the existing pier column 2 should be leveled and debris and dust should be removed. The installation and layout position of the embedded parts 13 should be measured, holes should be drilled and chemical anchoring agents should be injected, and the embedded parts 13 and chemical anchor bolts should be inserted into the holes to ensure that the tops of the embedded parts 13 are level and the elevations of the embedded parts 13 are consistent. After the chemical anchor bolts are thoroughly anchored, the gaps between the embedded parts 13 and the pier top concrete are filled with grouting to make them dense. After the grouting is completed and the concrete surface is finally set, rinse the concrete surface and remove debris.

[0072] In this example, the lifting method is to move the shoulder pole beam 9 through the transport vehicle 8, and the shoulder pole beam 9 is lifted by a wire rope. Ballast blocks 10 are provided at the corresponding positions of the shoulder pole beam 9 and the transport vehicle 8.

[0073] In some optional embodiments, the pier top support force transmission structure 1 is moved between the existing pier column 2 and the original bridge steel plate girder 3 by hoisting, and connected to the existing pier column 2, including:

[0074] The transverse distribution beam 11 is connected by a combination of a wire rope and a hand hoist. The wire rope is connected to the middle of the transverse distribution beam 11 through a shackle. The hand hoist is then connected to the wire rope, and a rotatable hook is installed between the wire rope and the hoist.

[0075] Tighten the hand chain hoist, lift the transverse distribution beam 11, move it to the installation point at a constant speed, lower the transverse distribution beam 11 to the bottom of the original bridge steel plate beam 3, pull the guy rope to rotate the transverse distribution beam 11 to be perpendicular to the original bridge steel plate beam 3, adjust the position of the transverse distribution beam 11, lower it to the top of the existing pier 2, and connect it to the existing pier 2;

[0076] The first connection system 121 and the second connection system 122 are lowered and connected to the transverse distribution beam 11 .

[0077] In this embodiment, the installation process of the pier top support force transmission structure 1 is specifically described. The transverse distribution beam 11 is connected by a combination of a wire rope and a hand hoist. The wire rope is connected to the middle part of the transverse distribution beam 11 through a shackle. The hand hoist is then connected to the wire rope, and a rotatable hook is installed between the wire rope and the hoist; the hand hoist is tightened, the transverse distribution beam 11 is lifted, and moved to the installation point at a uniform speed, and the transverse distribution beam 11 is lowered to the bottom of the original bridge steel plate beam 3. The guy rope is pulled to rotate the transverse distribution beam 11 to be perpendicular to the original bridge steel plate beam 3, and the position of the transverse distribution beam 11 is adjusted, and it is lowered to the top of the existing pier 2 and connected to the existing pier 2; the first connection system 121 and the second connection system 122 are lowered and connected to the transverse distribution beam 11. The installation method is simple and improves construction efficiency.

[0078] In this example, after lowering the first connection system 121 and the second connection system 122 and connecting them to the transverse distribution beam 11, the vertical force transmission structure 4 is hoisted as a whole to both ends of the transverse distribution beam 11 and the pad beam 7 is installed.

[0079] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this 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 cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0080] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0081] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A jacking support based on an existing bridge pier, characterized in that: include: A pier top support force transmission structure (1) is used to be arranged on the top of an existing pier column (2), and both ends extend beyond the vertical projection range of the existing pier column (2) in the transverse direction of the bridge. The pier top support force transmission structure (1) is located between the existing pier column (2) and the original bridge steel plate beam (3); A vertical force transmission structure (4) is arranged at both ends of the vertical projection range of the pier top support force transmission structure (1) extending out of the existing pier column (2) along the transverse direction of the bridge, and is located on the outside of the original bridge steel plate beam (3) along the transverse direction of the bridge. The vertical force transmission structure (4) is used to support the jacking platform.

2. The jacking support based on an existing bridge pier according to claim 1, characterized in that: The pier top support force transmission structure (1) comprises two transverse distribution beams (11) spaced apart along the longitudinal bridge direction, the two transverse distribution beams (11) being used to be arranged at both ends of the existing support (5), the lower side of the transverse distribution beam (11) being used to be connected to the top of the existing pier column (2), the two ends of the transverse distribution beam (11) extending out of the vertical projection range of the existing pier column (2) along the transverse bridge direction, and both ends of the transverse distribution beam (11) being provided with a vertical force transmission structure (4).

3. The jacking support based on an existing bridge pier as claimed in claim 2, characterized in that: The pier top support force transmission structure (1) further comprises a connection system (12), wherein the connection system (12) is arranged between the two transverse distribution beams (11) and is respectively connected to the two transverse distribution beams (11).

4. The jacking support based on an existing bridge pier as claimed in claim 3, characterized in that: The connection system (12) includes a plurality of first connection systems (121), wherein the first connection systems (121) are located between adjacent existing supports (5), and the first connection systems (121) include: Two first connecting rods (1211) are spaced apart and arranged along the transverse direction of the bridge, wherein the first connecting rods (1211) are arranged along the longitudinal direction of the bridge, and both ends of the first connecting rods are respectively connected to the two transverse distribution beams (11); Two first cross rod units (1212), the two first cross rod units (1212) are arranged along the longitudinal bridge direction, the first cross rod unit (1212) is X-shaped, and the two sides are respectively connected to the two first connecting rods (1211).

5. The jacking support based on an existing bridge pier as claimed in claim 4, characterized in that: The connection system (12) further includes two second connection systems (122), the two second connection systems (122) being respectively located at two ends of the transverse distribution beam (11) and corresponding to the positions of the vertical force transmission structure (4), the second connection system (122) including: Two second connecting rods (1221) are spaced apart and arranged along the transverse direction of the bridge, wherein the second connecting rods (1221) are arranged along the longitudinal direction of the bridge, and both ends of the second connecting rods are respectively connected to the two transverse distribution beams (11); The second cross rod unit (1222) is in an X-shape, and its two sides are respectively connected to the two second connecting rods (1221).

6. The jacking support based on an existing bridge pier as claimed in claim 2, characterized in that: The vertical force transmission structure (4) includes a column (41) and a column head (42) and a column foot (43) respectively arranged at the upper end and the lower end of the column (41); the column (41) is used to support the jacking platform through the column head (42) and is connected to the transverse distribution beam (11) through the column foot (43).

7. The jacking support based on an existing bridge pier according to claim 6, characterized in that: A third connection system (6) is provided between the two upright columns (41) located on the same side of the two transverse distribution beams (11), and the third connection system (6) includes: Two third connecting rods (61) are spaced apart in the height direction, and both ends of the third connecting rods (61) are respectively connected to the corresponding two upright posts (41); The connecting oblique rod (62) is located between the two third connecting rods (61), and both ends of the connecting oblique rod (62) are respectively connected to the two third connecting rods (61).

8. The jacking support based on an existing bridge pier according to claim 6, characterized in that: The columns (41) are respectively provided with diagonal braces (44) on both sides along the transverse bridge direction. One end of the diagonal brace (44) is connected to the columns (41), and the other end is connected to the transverse distribution beam (11).

9. The jacking support based on an existing bridge pier as claimed in claim 2, characterized in that: It also includes a plurality of embedded parts (13), wherein the embedded parts (13) are used to be arranged on the top of the existing pier (2) and to connect the transverse distribution beam (11).

10. The jacking support based on an existing bridge pier according to claim 1, characterized in that: The height of the pier top support force transmission structure (1) is smaller than the height of the existing support (5).

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