Overwater trestle

Abstract

The utility model relates to an overwater trestle which comprises a bridge abutment structure, an overwater trestle body and an overwater trestle body. The trestle structures extend in the longitudinal bridge direction, and one end of one trestle structure is connected to the bridge abutment structure; the trestle structure comprises a plurality of rows of first pile bodies arranged at intervals in the longitudinal bridge direction, each row of first pile bodies comprises a plurality of first steel pipe piles arranged at intervals in the transverse bridge direction, a groove is formed in the top face of each first steel pipe pile, first supporting profile steel extending in the transverse bridge direction is clamped in the groove, and an upper structure is supported on the first supporting profile steel. The overwater trestle is arranged in the shallow water area, the first steel pipe piles in the water body can occupy a small area compared with an island building or filling mode, all structures in the overwater trestle can be detached and transported to a next bridge construction site, and the construction cost is effectively saved.

Description

Technical Field

[0001] The present application relates to the field of water construction, and in particular to a water trestle. Background Art

[0002] At present, when carrying out water bridge construction in some shallow water areas with suitable conditions, such as pile foundation, cofferdam, capping platform, etc., it is necessary to build a temporary channel. In order to facilitate water construction, most of the related technologies use island building and filling to build temporary channels. However, the use of island building and filling will affect the natural flow state of the water body around the temporary channel, and it has a high construction cost. Summary of the invention

[0003] The present application provides a water pier, which can solve the technical problems in the related technology that the island building and filling methods used will affect the natural flow state of the water body around the temporary passage, and have high construction costs.

[0004] In a first aspect, an embodiment of the present application provides a water pier, comprising: an abutment structure, one end of which is used to connect to land; at least one pier structure, which extends along the longitudinal direction of the bridge, and one end of one of the pier structures is connected to the abutment structure; the pier structure comprises a plurality of rows of first pile bodies arranged at intervals along the longitudinal direction of the bridge, each row of the first pile bodies comprises a plurality of first steel pipe piles arranged at intervals along the transverse direction of the bridge, a groove is provided on the top surface of each of the first steel pipe piles, a first supporting steel extending along the transverse direction of the bridge is clamped in the groove, and an upper structure is supported on the first supporting steel.

[0005] In combination with the first aspect, in one embodiment, the pier structure also includes a second pile body, which is installed on a side of the pier structure away from the abutment structure, and the second pile body and the first pile body are spaced apart along the longitudinal direction of the bridge, and the second pile body includes: multiple rows of support columns, two adjacent rows of support columns are spaced apart along the longitudinal direction of the bridge, and each row of the support columns includes multiple second steel pipe piles spaced apart along the transverse direction of the bridge; the multiple second steel pipe piles spaced apart along the longitudinal direction of the bridge are connected by a longitudinal distribution beam installed on the top surface of the second steel pipe piles, and the top end of the longitudinal distribution beam is spaced apart along the longitudinal direction of the bridge and two groups of second support steel sections extending along the transverse direction of the bridge are arranged, and the top surface of at least one group of the second support steel sections supports the upper structure.

[0006] In combination with the first aspect, in one embodiment, two adjacent second steel pipe piles spaced apart along the longitudinal bridge direction are connected by a longitudinal connection system group, and the longitudinal connection system group includes a plurality of first connection systems arranged in parallel along an extension direction perpendicular to the second steel pipe piles, and the two ends of the first connection system are respectively fixed to the two second steel pipe piles, and two adjacent first connection systems are connected by a second connection system, and the two ends of the second connection system are respectively connected to the two second steel pipe piles.

[0007] In combination with the first aspect, in one embodiment, the superstructure includes a plurality of groups of single-span beams spaced apart along the transverse direction of the bridge, each group of the single-span beams extends along the longitudinal direction of the bridge, and each group of the single-span beams is supported by the first supporting steel section and the second supporting steel section.

[0008] In combination with the first aspect, in one embodiment, two adjacent groups of the single-span beams spaced apart in the transverse direction of the bridge are connected by a connecting structure.

[0009] In combination with the first aspect, in one embodiment, the superstructure also includes a plurality of first I-beams and a bridge deck arranged at intervals along the longitudinal direction of the bridge, the first I-beams all extend along the transverse direction of the bridge, and each of the first I-beams is installed on the top surface of multiple groups of the single-span beams, and the single-span beams and the bridge deck are arranged on both sides of the first I-beams.

[0010] In combination with the first aspect, in one embodiment, the single-span beam and the first I-beam are fixed by U-shaped bolts.

[0011] In combination with the first aspect, in one embodiment, the single-span beam body is constructed on the top surface of at least one group of the second supporting steel sections, and the top surface of the second supporting steel sections is provided with a limiting structure that cooperates with the single-span beam body.

[0012] In combination with the first aspect, in one embodiment, two adjacent second steel pipe piles in each row of the support columns are connected by a transverse connection system.

[0013] In combination with the first aspect, in one embodiment, the water pier includes a plurality of pier structures extending along the longitudinal bridge direction, the upper structures of two adjacent pier structures are arranged at intervals, and the upper structures of two adjacent pier structures are supported on the same first pile body.

[0014] The beneficial effects brought by the technical solution provided in the embodiments of the present application include:

[0015] By setting up an overwater trestle in a shallow water area, workers can stand on the upper structure to carry out bridge construction. At this time, multiple first steel pipe piles are fixed in the water body to support the upper structure. The first steel pipe piles set in the water body can occupy a smaller area than using island building or filling methods. A groove is provided on the top surface of the first steel pipe pile to place the first supporting steel, which can effectively prevent the first supporting steel from tipping over. After a drilling work is completed, each structure in the overwater trestle can be disassembled and transported to the next construction site, which can effectively save construction costs and solve the technical problems in related technologies that the use of island building and filling methods will affect the natural flow state of the water body around the temporary channel and have high construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. 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 creative work.

[0017] Figure 1 A schematic diagram of the structure of the water trestle provided in the embodiment of the present application;

[0018] Figure 2 A schematic structural diagram of a water trestle provided in an embodiment of the present application from another perspective;

[0019] Figure 3 A schematic diagram of the connection structure between the first pile body and the upper structure provided in an embodiment of the present application;

[0020] Figure 4 A schematic diagram of the connection structure between the second pile body and the upper structure provided in an embodiment of the present application;

[0021] Figure 5 A schematic diagram of the structure of a second pile body provided in an embodiment of the present application;

[0022] Figure 6 This is a schematic structural diagram of the first steel pipe pile provided in an embodiment of the present application.

[0023] In the figure:

[0024] 1. Abutment structure;

[0025] 2. first pile body; 21. first steel pipe pile; 211. groove; 212. steel plate; 213. limit plate; 22. first supporting steel;

[0026] 3. Superstructure; 31. Single-span beam; 32. Connection structure; 33. First I-beam; 34. Bridge deck;

[0027] 4. Second pile body; 41. Support column; 411. Second steel pipe pile; 42. Longitudinal distribution beam; 43. Second supporting steel; 44. First connection system; 45. Second connection system; 46. Transverse connection system group. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0029] The embodiment of the present application provides a water pier, which can solve the technical problems in the related technology that the island building and filling methods used will affect the natural flow state of the water body around the temporary passage, and that it has a high construction cost.

[0030] See also Figure 1 As shown, a water trestle provided by an embodiment of the present application comprises: an abutment structure 1, one end of the abutment structure 1 is used to connect to land; at least one trestle structure, the trestle structure extends along the longitudinal direction of the bridge, one end of one of the trestle structures is connected to the abutment structure 1, that is, when there are multiple trestle structures, only one of the trestle structures closest to the abutment structure 1 needs to be connected to the abutment structure 1, and multiple rows of steel pipe piles can be set at the position where the abutment structure 1 is connected to the trestle structure; the trestle structure comprises multiple rows of first pile bodies 2 arranged at intervals along the longitudinal direction of the bridge, and each row of the first pile bodies 2 comprises a plurality of first pile bodies 2 arranged along the longitudinal direction of the bridge. A plurality of first steel pipe piles 21 are arranged at intervals in the transverse direction of the bridge. The number of first steel pipe piles 21 in each row of first pile bodies 2 can be determined according to the actual demand for drilling work or the environmental conditions of the water area. A groove 211 is provided on the top surface of each of the first steel pipe piles 21. A first supporting steel 22 extending along the transverse direction of the bridge is clamped in the groove 211. In the present embodiment, a first supporting steel 22 is fixed in the groove 211 of all the first steel pipe piles 21 in a row of first pile bodies 2, and each row of first pile bodies 2 has a first supporting steel 22, and the first supporting steel 22 supports an upper structure 3.

[0031] In the embodiment of the present application, a water trestle is set up in a shallow water area so that the workers can stand on the upper structure 3 to carry out bridge construction. At this time, multiple first steel pipe piles 21 are fixed in the water body to support the upper structure 3. The first steel pipe piles 21 can occupy a smaller area in the water body compared to the island building or filling method. The first steel pipe piles 21 can also be fixed with a steel plate 212 of a certain thickness by welding near the groove 211, so that the steel plate 212 can also be used to bear the weight of the first supporting steel 22. The top surface of the first steel pipe pile 21 is provided with a groove 211 to place the first supporting steel 22, which can effectively prevent the first supporting steel 22 from tipping over. In this embodiment, the first supporting steel 22 is set as two parallel I-beams, and the upper wing plate of the I-beam can be aligned with the upper Structure 3 is connected, and the lower wing plate is placed at the bottom of the groove 211. At this time, there is some gap between the waist plate in the I-beam and the side wall of the groove 211. Preferably, a limit plate 213 is welded at a position of the first steel pipe pile 21 close to the side of the groove 211, so that the web plate in the I-beam and the limit plate 213 can be welded, further enhancing the stability of the first supporting steel 22, and can effectively enhance the stability of the first supporting steel 22 in multiple first steel pipe piles 21. After the drilling work is completed once, each structure in the water trestle can also be disassembled and transported to the next bridge construction site, which can effectively save construction costs and solve the technical problems that the island building and filling methods used in the related technology will affect the natural flow state of the water body around the temporary channel and have a high construction cost.

[0032] In some optional embodiments, the trestle structure further includes a second pile body 4, which is installed on a side of the trestle structure away from the abutment structure 1, that is, the second pile body 4 can be arranged at the farthest distance from the abutment structure 1 in a trestle structure, and the second pile body 4 and the first pile body 2 are spaced apart along the longitudinal direction of the bridge, and the second pile body 4 includes: a plurality of rows of support columns 41, two adjacent rows of the support columns 41 are spaced apart along the longitudinal direction of the bridge, and each row of the support columns 41 includes a plurality of second steel pipe piles 411 spaced apart along the transverse direction of the bridge. In this embodiment, the number of the second steel pipe piles 411 in each row of support columns 41 is equal to the number of the first steel pipe piles 2 in each row. 1, and there may be different numbers in other embodiments; a plurality of second steel pipe piles 411 spaced apart along the longitudinal bridge direction are connected by a longitudinal distribution beam 42 installed on the top surface of the second steel pipe pile 411, and the top of the longitudinal distribution beam 42 is spaced apart along the longitudinal bridge direction and two groups of second support steel sections 43 extending along the transverse bridge direction, and the top surface of at least one group of the second support steel sections 43 supports the upper structure 3, that is, the second support steel sections 43 and the first support steel sections 22 jointly support the upper structure 3, and at this time, the top surface of the second support steel sections 43 can support the upper structure 3 farthest from the abutment structure 1 in a trestle structure. The first steel pipe pile 21 is set in the middle position of the trestle structure at this time, and can be regarded as an intermediate pier, which is only used to provide vertical support. Preferably, the first support steel section 22 and each group of the second support steel sections 43 include two parallel I-beams.

[0033] In some optional embodiments, two adjacent second steel pipe piles 411 spaced apart along the longitudinal bridge direction are connected by a longitudinal connection system group. In this embodiment, the second pile body 4 includes two rows of support columns 41, each row of support columns 41 includes multiple second steel pipe piles 411, and two second steel pipe piles 411 spaced apart along the longitudinal bridge direction in the two rows of support columns 41 are connected by a longitudinal connection system group, and the longitudinal connection system group includes multiple first connection systems 44 arranged in parallel along an extension direction perpendicular to the second steel pipe piles 411, and the two ends of the first connection system 44 are respectively fixed to the two second steel pipe piles 411, and two adjacent first connection systems 44 are connected by a second connection system 45, and the two ends of the second connection system 45 are respectively connected to the two second steel pipe piles 411, that is, a triangular structure can be formed between the first connection system 44, the second connection system 45 and the second steel pipe piles 411 to enhance the support stability of the second pile body 4.

[0034] In some optional embodiments, the upper structure 3 includes a plurality of groups of single-span beams 31 spaced apart along the transverse direction of the bridge. Preferably, each group of single-span beams 31 may include a plurality of Bailey beams, each group of the single-span beams 31 extends along the longitudinal direction of the bridge, and each group of the single-span beams 31 is supported on the first supporting steel 22 and the second supporting steel 43. Bailey beams are common structures in bridge construction, and it is more convenient to directly use Bailey beams as bridge deck structures. In this embodiment, a distribution beam is also provided on the top surface of the first supporting steel 22, and the single-span beam 31 is directly supported on the top of the distribution beam, and a connecting piece is also provided between two adjacent first steel pipe piles 21 spaced apart along the transverse direction of the bridge.

[0035] In some optional embodiments, two adjacent groups of the single-span beams 31 spaced apart along the transverse direction of the bridge are connected by a connecting structure 32. In this embodiment, a "321-type" Bailey beam can be used. The "321-type" Bailey beam can be pre-assembled in a factory to directly form multiple groups of single-span beams 31. This method can save more time when building a temporary water pier.

[0036] In some optional embodiments, the superstructure 3 also includes a plurality of first I-beams 33 and a bridge deck 34 spaced apart along the longitudinal direction of the bridge. In the present embodiment, the bridge deck 34 is a patterned steel plate 212. The patterned steel plate 212 and the first I-beam 33 are prefabricated into blocks in the factory and directly hoisted into place at the construction site, and then simply fixed with the "321 type" Bailey beam. The first I-beams 33 all extend along the transverse direction of the bridge, and each of the first I-beams 33 is installed on the top surface of multiple groups of the single-span beams 31. The single-span beams 31 and the bridge deck 34 are arranged on both sides of the first I-beam 33, that is, the first I-beam 33 is clamped between the single-span beam 31 and the bridge deck 34 after the construction is completed. The first I-beam 33 and the patterned steel plate 212 are also common structures in the field of bridge construction. The first I-beam 33 and the patterned steel plate 212 are only welded and fixed in the factory, which can ensure the overall lightness and save construction time of the pier at the construction site.

[0037] Preferably, the single-span beam 31 and the first I-beam 33 are fixed by U-bolts, and the bottom surface of the bridge deck has a back rib. The U-bolts are bolted on the back rib with the opening facing downward. The use of U-bolts can cause less damage to the first I-beam 33 and the single-span beam 31 of the bridge. The U-bolts act as a clamp between the first I-beam 33 and the single-span beam 31 to fasten the two. Fastening with U-bolts is not only convenient for later disassembly but also allows the first I-beam 33 and the single-span beam 31 to be used in the next project with minimal damage.

[0038] In some optional embodiments, the single-span beam body 31 is erected on the top surface of at least one group of the second supporting steel sections 43, that is, after multiple groups of single-span beam bodies 31, the first I-beam 33 and the bridge deck 34 together form the upper structure 3, due to its large mass, the upper structure 3 can be directly erected on the top surface of the second supporting steel sections 43 so that it can be easy to erect and disassemble while also meeting the supporting force of the pier. Preferably, the top surface of the second supporting steel sections 43 is provided with a limiting structure that cooperates with the single-span beam body 31, and the limiting structure is arranged below the "321 type" Bailey beam, and the lower chord of the Bailey beam is limited on the top surface of the second supporting steel section 43. The limiting structure can be an annular channel steel with an opening, and the annular channel steel fixes the second supporting steel section 43 and the lower chord of the Bailey beam from the top surface of the second supporting steel section 43 downwardly, and the opening of the annular channel steel is fixed on the top surface of the longitudinal distribution beam 42.

[0039] In some optional embodiments, two adjacent second steel pipe piles 411 in each row of the support columns 41 are connected by a transverse connection group 46, that is, the second steel pipe piles 411 spaced apart along the transverse bridge direction also have a connection structure 32, and the transverse connection group 46 can have the same structure as the longitudinal connection group to improve the supporting performance between each second steel pipe pile 411.

[0040] In some optional embodiments, the water trestle includes a plurality of trestle structures extending along the longitudinal bridge direction, the upper structures 3 of two adjacent trestle structures are arranged at intervals, and the upper structures 3 of the two adjacent trestle structures are supported on the same first pile body 2, that is, the two adjacent trestle structures can have the same structure. In this embodiment, two trestle structures are built, one of which is close to the abutment structure 1 for the first trestle, and the other is the second trestle, the upper structure 3 of the first trestle is supported on the second support steel 43 on the side of the first pile body 2 close to the abutment structure 1 in the first trestle, and the upper structure 3 of the second trestle close to the first trestle is supported on the second support steel 43 on the side of the first pile body 2 away from the abutment structure 1 in the first trestle, and there can be a gap between the upper structure 3 of the first trestle and the upper structure 3 of the second trestle, that is, an expansion joint, to facilitate normal passage on the bridge deck. The water trestle can be continuously extended by different numbers of trestle structures, and the turnover and versatility of the water trestle are strong, and can be used in a variety of different trestle structures to save a lot of construction costs.

[0041] Preferably, when the water trestle is built, while the abutment structure 1 is being constructed, the "321 type" Bailey beam, the first I-beam 33 and the bridge deck 34, the first pile body 2 and the second pile body 4 in the upper structure 3 are prefabricated in the factory, and then the first steel pipe pile 21 and the second steel pipe pile 411 and other structures are driven into the ground by a vibrating hammer, and the burying depth of the first steel pipe pile 21 and the second steel pipe pile 411 is confirmed according to the soil layer parameters and the trestle traffic load calculation. A single first steel pipe pile 21 or second steel pipe pile 411 can be directly driven into place as a whole, or it can be extended in sections and driven in section by section; after the first steel pipe pile 21 and the second steel pipe pile 411 are driven into place, the connection system between the pipe piles and the pile top distribution beam are installed. The upper structure 3 of the factory-fabricated water trestle is assembled horizontally on site to form a single-span complete trestle bridge body. Guardrails can also be set on both sides of the bridge deck 34 to ensure the safety of personnel passing through. When the trestle bridge deck adopts a lane layout with separated lanes for people and vehicles, anti-collision guardrails need to be set between the sidewalk and the driving lane.

[0042] In the description of the present application, it should be noted that the terms "upper", "lower", etc. 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 the present application and simplifying the description, rather than indicating or implying 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 the present 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 it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0043] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such 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 including 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, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0044] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A water trestle, characterized in that: It includes: A bridge abutment structure (1), one end of the bridge abutment structure (1) being used for connection to land; At least one trestle structure, the trestle structure extending in the longitudinal direction of the bridge, wherein one end of one of the trestle structures is connected to the abutment structure (1); The trestle structure comprises a plurality of rows of first pile bodies (2) arranged at intervals along the longitudinal direction of the bridge, each row of the first pile bodies (2) comprises a plurality of first steel pipe piles (21) arranged at intervals along the transverse direction of the bridge, a groove (211) is provided on the top surface of each first steel pipe pile (21), a first supporting steel (22) extending along the transverse direction of the bridge is clamped in the groove (211), and an upper structure (3) is supported on the first supporting steel (22).

2. The water trestle according to claim 1, characterized in that: The trestle structure further comprises a second pile body (4), the second pile body (4) being installed on a side of the trestle structure away from the abutment structure (1), the second pile body (4) being spaced apart from the first pile body (2) along the longitudinal direction of the bridge, and the second pile body (4) comprising: A plurality of rows of support columns (41), wherein two adjacent rows of support columns (41) are spaced apart along the longitudinal direction of the bridge, and each row of support columns (41) comprises a plurality of second steel pipe piles (411) spaced apart along the transverse direction of the bridge; A plurality of second steel pipe piles (411) spaced apart along the longitudinal direction of the bridge are connected by a longitudinal distribution beam (42) installed on the top surface of the second steel pipe piles (411); two groups of second support steel sections (43) extending along the transverse direction of the bridge are spaced apart along the longitudinal direction of the bridge at the top end of the longitudinal distribution beam (42); and the top surface of at least one group of the second support steel sections (43) supports the upper structure (3).

3. The water trestle as claimed in claim 2, characterized in that: Two adjacent second steel pipe piles (411) spaced apart along the longitudinal bridge direction are connected by a longitudinal connection system group, the longitudinal connection system group includes a plurality of first connection systems (44) arranged in parallel along an extension direction perpendicular to the second steel pipe piles (411), the two ends of the first connection system (44) are respectively fixed to the two second steel pipe piles (411), two adjacent first connection systems (44) are connected by a second connection system (45), and the two ends of the second connection system (45) are respectively connected to the two second steel pipe piles (411).

4. The water trestle as claimed in claim 2, characterized in that: The upper structure (3) comprises a plurality of groups of single-span beams (31) spaced apart along the transverse direction of the bridge, each group of the single-span beams (31) extending along the longitudinal direction of the bridge, and each group of the single-span beams (31) supported by the first supporting steel section (22) and the second supporting steel section (43).

5. The water trestle as claimed in claim 4, characterized in that: Two adjacent groups of single-span beam bodies (31) spaced apart in the transverse direction of the bridge are connected via a connecting structure (32).

6. The water trestle as claimed in claim 4, characterized in that: The upper structure (3) further comprises a plurality of first I-beams (33) and a bridge deck (34) which are spaced apart along the longitudinal direction of the bridge, wherein the first I-beams (33) extend along the transverse direction of the bridge, and each of the first I-beams (33) is installed on the top surface of a plurality of groups of the single-span beams (31), and the single-span beams (31) and the bridge deck (34) are arranged on both sides of the first I-beams (33).

7. The water trestle according to claim 6, characterized in that: The single-span beam (31) and the first I-beam (33) are fixed by U-shaped bolts.

8. The water trestle as claimed in claim 4, characterized in that: The single-span beam body (31) is mounted on the top surface of at least one group of the second supporting steel sections (43), and the top surface of the second supporting steel sections (43) is provided with a limiting structure that cooperates with the single-span beam body (31).

9. The water trestle as claimed in claim 2, characterized in that: Two adjacent second steel pipe piles (411) in each row of the support columns (41) are connected via a transverse connection system (46).

10. The water trestle as claimed in claim 2, characterized in that: The water trestle comprises a plurality of trestle structures extending in the longitudinal direction of the bridge, the upper structures (3) of two adjacent trestle structures are arranged at intervals, and the upper structures (3) of two adjacent trestle structures are supported on the same first pile body (2).

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