Quick connecting structure of fabricated bridge steel structure box piece

Abstract

The invention provides a quick connecting structure of a fabricated bridge steel structure box piece, which comprises a plurality of bridge pier columns, cross beams are fixed on two sides of the bridge pier columns, outer sliding beams are arranged in the cross beams, supporting beams are arranged at the lower ends of the outer sliding beams, two adjacent outer sliding beams are fixedly connected through connecting pieces, a plurality of cantilevers are erected on the outer sliding beams, and a sliding seat is arranged at one end of each cantilever. The pier column is provided with a plurality of supporting points, a pushing assembly is arranged among the supporting points, and the pushing assembly comprises a base and two hydraulic pushing machines. The temporary support has the beneficial effects that the temporary support is convenient for constructors to mount, the dismounting, moving and mounting time is saved, the construction progress is accelerated, the work amount of the temporary support is reduced, and the construction cost is saved; the two pier columns are connected through the outer sliding beams, and stable supporting force is achieved through the supporting beams and the connecting pieces. By means of the sliding combined structure of the cantilever and the outer sliding beam, the whole pushing assembly can be horizontally moved to the next pier column in a sliding mode at the high position, and operation is convenient and fast.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of prefabricated buildings, and in particular to a quick connection structure of prefabricated bridge steel box components. Background Art

[0002] The steel structure box of the bridge is a component of the prefabricated bridge. Due to the large volume of the steel structure box, the size of each assembly part that makes up the steel structure box is also large, the assembly is difficult and inefficient, and the transportation is difficult. Therefore, it is necessary to reduce the size of the assembly parts to solve such problems; The maximum length of a bridge steel box is usually 40 meters, but its weight reaches thousands of tons. The steel boxes are all segmented structures. Due to their own heavy weight, they need to be manufactured in professional factories, moved by special transport vehicles, and hoisted by large hoisting equipment. The current method is to build abutments and assemble them section by section from one end of the abutment through several construction methods such as pushing, pulling, jacking, and clamping.

[0003] The inventor discovered the following defects during the operation of the specific embodiment: During current construction, multiple temporary supports need to be built between each pier to install thrusters. When moving to the next section, they need to be dismantled in time and reinstalled in preparation for the next section of piers. The support work is large, which increases the time for installation and dismantling and affects the progress of the project.

[0004] It should be noted that the above contents belong to the technical cognition scope of the inventor. Since the technical contents in this field are vast and too complicated, the above contents of this application do not necessarily constitute prior art. Summary of the invention

[0005] 1. Technical problem to be solved by the invention: The present invention provides a quick connection structure of assembled bridge steel structure box members, which is used to solve the technical problems existing in the above-mentioned background technology.

[0006] 2. Technical solution: To achieve the above-mentioned purpose, the technical solution provided by the present invention is: a quick connection structure of an assembled bridge steel box, comprising a plurality of piers, cross beams are fixed on both sides of the piers, an outer sliding beam is arranged inside the cross beam, a support beam is arranged at the lower end of the outer sliding beam, two adjacent outer sliding beams are fixedly connected by a connecting piece, a plurality of cantilevers are mounted on the outer sliding beam, a sliding seat is arranged at one end of the cantilever, a plurality of supporting points are provided on the pier, a pushing assembly is arranged between the plurality of supporting points, and the pushing assembly comprises a base and two hydraulic pushing machines.

[0007] Furthermore, a sliding groove is provided on the outer sliding beam, and the sliding seat is embedded in the sliding groove and slidably connected thereto.

[0008] Furthermore, the sliding seat includes a guide wheel, a sliding block is provided at the upper end of the guide wheel, and a lifting ring is provided on one side of the sliding block.

[0009] Furthermore, the cantilever is fixedly connected to the slider, the upper end of the cantilever has a supporting end surface, one side of the supporting end surface has a guiding surface, and a roller group is provided on the guiding surface.

[0010] Furthermore, the roller group is located at the end of the cantilever, and the roller group includes a plurality of supporting wheels, and the plurality of supporting wheels are embedded in the cantilever.

[0011] Furthermore, the base includes a fixing portion and an extension section, the fixing portion is fixedly connected to the pier column by bolts, and a plurality of lifting rings 2 are provided at one end and both sides of the extension section.

[0012] Furthermore, the two hydraulic jacking machines are arranged in parallel, and the two hydraulic jacking machines are fixedly arranged on the fixing part.

[0013] Furthermore, the support beam is fixed on both sides of the pier column in a Y shape, and the upper end of the support beam is fixedly connected to the outer sliding beam by bolts.

[0014] Furthermore, the connecting member is T-shaped and includes a connecting end and a positioning end. The connecting end is embedded in the middle of the two outer sliding beams, and the positioning end is fixed to the lower ends of the two outer sliding beams.

[0015] 3. Beneficial effects: Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: The invention has a reasonable design, is convenient for construction workers to install, saves time for disassembly, movement and installation, speeds up construction progress, reduces the amount of work for temporary brackets, and saves construction costs; The connection between the two piers is achieved by setting an external sliding beam, and a stable supporting force is achieved by supporting beams and connecting parts; By utilizing the sliding combination structure of the cantilever and the outer sliding beam, the entire jacking assembly can be slid and translated to the next pier column at a high place, which is convenient and quick to operate.

[0016] It should be noted that the structures not introduced in the present invention are the same as the prior art or can be implemented by using the prior art, and are not described in detail here because they do not involve the design points and improvement directions of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the local structure of the present invention; Figure 3 Another partial structural schematic diagram of the present invention; Figure 4 It is a schematic diagram of the cantilever structure of the present invention; Figure 5 It is a schematic diagram of the structure of the push assembly of the present invention.

[0018] Reference numerals: 1. Bridge pier column; 2. Cross beam; 3. Outer sliding beam; 31. Sliding groove; 4. Connector; 41. Connecting end; 42. Positioning end; 5. Cantilever; 51. Support end surface; 52. Guide surface; 53. Roller group; 531. Support wheel; 6. Support point; 7. Pushing assembly; 71. Base; 711. Fixed part; 712. Extension section; 713. Lifting ring 2; 72. Hydraulic pushing machine; 8. Sliding seat; 81. Guide wheel; 82. Sliding block; 83. Lifting ring 1; 9. Support beam. DETAILED DESCRIPTION

[0019] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0022] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", "provided on" and the like 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 the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0023] See attached Figure 1-5 A quick connection structure of an assembled bridge steel box includes a plurality of bridge piers 1, cross beams 2 are fixed on both sides of the bridge piers 1, an outer sliding beam 3 is arranged inside the cross beam 2, a support beam 9 is arranged at the lower end of the outer sliding beam 3, two adjacent outer sliding beams 3 are fixedly connected by a connecting member 4, a plurality of cantilevers 5 are arranged on the outer sliding beam 3, a sliding seat 8 is arranged at one end of the cantilever 5, a plurality of supporting points 6 are provided on the bridge pier 1, and a jacking assembly 7 is arranged between the plurality of supporting points 6, the jacking assembly 7 includes a base 71 and two hydraulic jacking machines 72, and in the technical scheme, the hydraulic jacking machine 72 is a prior art.

[0024] See attached Figure 1-5 A sliding groove 31 is provided on the outer sliding beam 3, and the sliding seat 8 is embedded in the sliding groove 31 and slidably connected therewith. The outer sliding beam 3 is fixedly arranged on both sides of the pier column 1 through the cross beam 2. Two adjacent outer sliding beams 3 are fixedly connected by a connecting piece 4. The lower end of the outer sliding beam 3 realizes bearing capacity through a Y-shaped support beam 9. The lateral dimension of the cross beam 2 is larger than that of the pier column 1, which increases the contact surface between the cross beam 2 and the outer sliding beam 3 and strengthens the fixation.

[0025] See attached Figure 1-5The cantilever 5 is slidably connected to the outer sliding beam 3 through the sliding seat 8 as a whole. The cantilever 5 is arranged in pairs between the two bridge piers 1. The cantilever 5 slides back and forth between the two bridge piers 1 along the outer sliding beam 3. The sliding seat 8 includes a guide wheel 81. A slider 82 is provided at the upper end of the guide wheel 81. The guide wheel 81 is slidably connected to the sliding groove 31, and a limited support is formed by the sliding seat 8 and the sliding groove 31 to provide a stable supporting force for one end of the cantilever 5. A lifting ring 83 is provided on one side of the slider 82. The cantilever 5 is fixedly connected to the slider 82. The upper end of the cantilever 5 has a support end The support end face 51 has a guide surface 52 on one side, and a roller group 53 is arranged on the guide surface 52. The guide surface 52 is an inclined surface. The upper end of the roller group 53 is arranged lower than the support end face 51. The roller group 53 is located at the end of the cantilever 5. The roller group 53 includes a plurality of support wheels 531. The plurality of support wheels 531 are embedded in the cantilever 5. During installation, the roller group 53 is kept facing the side that needs to bear the pushing assembly 7. The pushing assembly 7 uses the roller group 53 to make the support end face 51 slide more easily under the extension section 712, thereby providing support force for the extension section 712.

[0026] See attached Figure 1-5 The base 71 includes a fixing portion 711 and an extension section 712. The fixing portion 711 is fixedly connected to the pier column 1 by bolts. The lower end of the extension section 712 is connected to the fixing portion 711 with an inclined step, so that the extension section 712 is slightly lifted upward. A plurality of lifting rings 713 are provided at one end and both sides of the extension section 712. Both the lifting ring 1 83 and the lifting ring 2 713 can cooperate with the chain hook to realize the dragging operation.

[0027] See attached Figure 1-5 The two hydraulic jacking machines 72 are arranged in parallel, and the two hydraulic jacking machines 72 are fixed on the fixing part 711. The hydraulic jacking machines 72 are installed on the inner side of multiple supporting points 6 of the pier column 1, and the overall height of the hydraulic jacking machines 72 is smaller than the supporting points 6. The hydraulic jacking machines 72 are fixed to the base 71 to form a whole.

[0028] See attached Figure 1-5 The support beam 9 is fixed on both sides of the pier column 1 in a Y shape, and the upper end of the support beam 9 is fixedly connected to the outer sliding beam 3 by bolts. The Y-shaped support beam 9 is distributed on both sides of the pier column 1, forming a stable triangular support structure with the outer sliding beam 3.

[0029] See attached Figure 1-5 The connecting member 4 is T-shaped and includes a connecting end 41 and a positioning end 42 . The connecting end 41 is embedded in the middle of the two outer sliding beams 3 , and the positioning end 42 is fixed to the lower ends of the two outer sliding beams 3 .

[0030] In this embodiment, after completing the assembly of a stage of steel structure box parts, the bolts on the jacking assembly 7 are removed, the jacking assembly 7 is separated from the bridge pier column 1, and the jacking assembly 7 is pushed to the next assembly stage. At the same time, chain hooks are put on the lifting ring 1 83 and the lifting ring 2 713, and the two chain hooks are pulled in opposite directions on the ground to pull the jacking assembly 7 and the cantilever 5 to move relative to each other, so that the jacking assembly 7 as a whole first slides over the first cantilever 5, so that it is placed under the extension section 712 of the bottom plate 71, and then the second cantilever 5 is pulled until both cantilever 5 are located under the extension section 712 of the bottom plate 71, ensuring that the supporting end surfaces 51 of the two cantilever 5 are supported under the bottom plate 71, and finally, the chain hooks put on the lifting ring 1 83 and the lifting ring 2 713 are pulled in the same direction on the ground to slide the jacking assembly 7 as a whole and the two cantilever 5 along the outer sliding beam 3, and at the same time pull to the next bridge pier column 1; After reaching the next pier 1, pull the chain hook on the second lifting ring 713 separately, pull the jacking assembly 7, until the jacking assembly 7 is placed on the pier 1 as a whole, re-fix the jacking assembly 7 on the next pier 1, then remove the front section of the cross beam 1, the outer sliding beam 2 and the supporting beam 9, and move to the next splicing section for installation, so that the jacking assembly 7 can be transported by sliding and translating in the horizontal direction, without the need to dismantle it and then transport it to the ground and then perform the hoisting operation, thus saving construction time.

[0031] In another embodiment, the cross beam 1 can be pre-installed on the next bridge pier 1. After the connection between the outer sliding beam 2, the support beam 9 and the previous bridge pier 1 is released, the outer sliding beam 2 and the support beam 9 can be directly moved as a whole to the next bridge pier 1 by lateral pushing and then fixed. Before pushing, the cantilever 5 can be removed above the bridge deck, and there is no need to remove each one individually and then perform turnover, transportation, hoisting and other operations on the ground, which further saves construction time.

[0032] In the technical solution, the chain hook used in conjunction can be dragged on the ground according to actual construction needs, or can be operated on the assembled bridge deck.

[0033] In summary, after the two bridge piers 1 are connected by the outer sliding beam 3, the jacking assembly 7 can be slid as a whole to the next bridge pier 1 at a high place by utilizing the sliding connection structure between the cantilever 5 and the outer sliding beam 3, which is convenient for construction workers to install, reduces the workload of temporary supports, saves disassembly, movement and installation time, and speeds up the construction progress.

[0034] The above-described embodiments only express a certain implementation mode of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A quick connection structure for assembled bridge steel box components, comprising a plurality of bridge piers (1), characterized in that: Cross beams (2) are fixed on both sides of the bridge pier column (1), an outer sliding beam (3) is arranged inside the cross beam (2), a support beam (9) is arranged at the lower end of the outer sliding beam (3), two adjacent outer sliding beams (3) are fixedly connected via a connecting member (4), a plurality of cantilevers (5) are mounted on the outer sliding beam (3), a sliding seat (8) is arranged at one end of the cantilever (5), a plurality of supporting points (6) are arranged on the bridge pier column (1), a jacking assembly (7) is arranged between the plurality of supporting points (6), and the jacking assembly (7) comprises a base (71) and two hydraulic jacking machines (72).

2. The quick connection structure of the assembled bridge steel box according to claim 1 is characterized in that: The outer sliding beam (3) is provided with a sliding groove (31), and the sliding seat (8) is embedded in the sliding groove (31) and is slidably connected thereto.

3. The quick connection structure of the assembled bridge steel box according to claim 1 is characterized in that: The sliding seat (8) comprises a guide wheel (81), a sliding block (82) is provided at the upper end of the guide wheel (81), and a lifting ring (83) is provided at one side of the sliding block (82).

4. The quick connection structure of the assembled bridge steel box member according to claim 3 is characterized by: The cantilever (5) is fixedly connected to the slider (82); the upper end of the cantilever (5) has a supporting end surface (51); one side of the supporting end surface (51) has a guiding surface (52); and a roller group (53) is provided on the guiding surface (52).

5. The quick connection structure of the assembled bridge steel box member according to claim 1 is characterized in that: The roller group (53) is located at the end of the cantilever (5), and the roller group (53) comprises a plurality of support wheels (531), and the plurality of support wheels (531) are embedded in the cantilever (5).

6. The quick connection structure of the assembled bridge steel box according to claim 1 is characterized by: The base (71) comprises a fixing portion (711) and an extension section (712); the fixing portion (711) is fixedly connected to the bridge pier column (1) via bolts; and a plurality of lifting rings (713) are provided at one end and both sides of the extension section (712).

7. The quick connection structure of the assembled bridge steel box member according to claim 6 is characterized by: The two hydraulic jacking machines (72) are arranged in parallel, and the two hydraulic jacking machines (72) are fixedly arranged on the fixing part (711).

8. The quick connection structure of the assembled bridge steel box member according to claim 1 is characterized by: The support beam (9) is fixed in a Y shape on both sides of the pier column (1), and the upper end of the support beam (9) is fixedly connected to the outer sliding beam (3) by bolts.

9. The quick connection structure of the assembled bridge steel box member according to claim 1 is characterized by: The connecting member (4) is T-shaped and comprises a connecting end (41) and a positioning end (42); the connecting end (41) is embedded in the middle of the two outer sliding beams (3); and the positioning end (42) is fixed to the lower ends of the two outer sliding beams (3).

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