Steel box girder sliding system

Abstract

The utility model relates to a steel box girder sliding system which comprises a sliding support, a longitudinal moving sliding block, a winch and a transverse moving driving mechanism. The longitudinal moving slide block is slidably arranged on the slide way beam; the winch is connected with a longitudinal moving sliding block through a steel wire rope, and the longitudinal moving sliding block is provided with a transverse moving sliding block. The transverse movement driving mechanism is connected with the transverse movement sliding block and is configured to drive the transverse movement sliding block to move transversely. The longitudinal moving sliding block is arranged on the sliding way beam in a sliding mode, the transverse moving sliding block is installed on the longitudinal moving sliding block, the steel box beam placed on the transverse moving sliding block can longitudinally slide through cooperation of the winch and the steel wire rope, the transverse moving driving mechanism is used for driving the transverse moving sliding block to transversely slide, and the sliding process of the steel box beam is controllable. The problems that in the prior art, a steel box girder segment sliding system is low in stability, long in sliding time, low in sliding precision and the like in the sliding process, and construction efficiency and construction quality are affected are solved.

Description

Technical Field

[0001] This application relates to the field of bridge engineering, specifically to a steel box girder sliding system. Background Technology

[0002] Currently, steel box girders are constructed using segmental assembly and sliding in the construction of long-span bridges. Segmental sliding is one of the key technologies for achieving rapid and efficient bridge construction.

[0003] In related technologies, the steel box girder segment sliding system requires disassembling and welding the entire steel box girder segment, and then carrying out inter-segment jacking construction to achieve the movement of the steel box girder. Problems such as low stability, long sliding time, and low sliding accuracy during the sliding process affect construction efficiency and construction quality.

[0004] Therefore, it is necessary to design a new steel box girder sliding system to overcome the above problems. Utility Model Content

[0005] This application provides a steel box girder sliding system that can solve the problems of low stability, long sliding time, and low sliding accuracy in related technologies, which affect construction efficiency and quality.

[0006] In a first aspect, embodiments of this application provide a steel box girder sliding system, comprising: a sliding support, a longitudinal sliding block, a winch, and a lateral driving mechanism. The sliding support is provided with a slide beam; the longitudinal sliding block is slidably disposed on the slide beam; the winch is connected to the longitudinal sliding block via a wire rope, and the longitudinal sliding block is equipped with a lateral sliding block; the lateral driving mechanism is connected to the lateral sliding block, and the lateral driving mechanism is configured to drive the lateral sliding block to move laterally.

[0007] The system comprises a longitudinal sliding block on which a transverse sliding block is mounted, and a steel box girder is placed on the transverse sliding block. After welding, the steel box girder is transported by ship and hoisted onto the transverse sliding block. A winch pulls the longitudinal sliding block along the slide beam longitudinally via a wire rope, thereby achieving longitudinal sliding of the steel box girder. When the steel box girder slides longitudinally to a set position, the longitudinal sliding operation ends. During the longitudinal sliding of the steel box girder, the longitudinal sliding block and the transverse sliding block are fixed. After the longitudinal sliding of the steel box girder is completed, the transverse sliding operation begins. The transverse driving mechanism drives the transverse sliding block to slide laterally, thereby achieving transverse sliding of the steel box girder. When the steel box girder slides laterally to a set position, the entire sliding operation ends. The steel box girder sliding system has strong strength, stability, and high sliding accuracy, achieving precise positioning and adjustment of the steel box girder. Furthermore, the longitudinal sliding block and the transverse sliding block are assembled, facilitating installation and disassembly. It has high jacking efficiency, requires no stopping or switching, and can directly slide into place, shortening the sliding time.

[0008] In conjunction with the first aspect, in one embodiment, the bottom of the longitudinal sliding block is provided with a shackle, and the wire rope passes through the shackle to connect the longitudinal sliding block and the winch.

[0009] The longitudinal sliding block is connected to the wire rope via the shackle, which facilitates adjusting the sliding direction of the longitudinal sliding block according to the traction direction.

[0010] In conjunction with the first aspect, in one embodiment, the sliding support is provided with a pair of sliding beams, each of the sliding beams is slidably fitted with one longitudinal sliding block, and the two longitudinal sliding blocks are connected by a tie rod.

[0011] The sliding support is the basic structure of the steel box girder sliding system. The sliding beam is used to support and guide the longitudinal sliding of the longitudinal sliding block. The two longitudinal sliding blocks are connected by the tie rod to form a whole to support the steel box girder to slide longitudinally on a pair of sliding beams.

[0012] In conjunction with the first aspect, in one embodiment, each longitudinal sliding block includes a plurality of steel profiles arranged in parallel, with adjacent steel profiles fixed, and the shackles are provided at the bottom of the plurality of steel profiles.

[0013] The steel sections are fixed by a support frame, the top of the steel sections forms a support platform for the steel box girder, and the bottom of the steel sections is provided with shackles to connect to the winch.

[0014] In conjunction with the first aspect, in one embodiment, an MGE plate is fixed to the bottom of a plurality of the steel profiles, and the MGE plate is slidably mounted on the slide beam.

[0015] The MGE plate has a low coefficient of friction and is slidably mounted on the slide beam, making the longitudinal slider more stable during sliding.

[0016] In conjunction with the first aspect, in one embodiment, the lateral movement drive mechanism includes a jack connected to the lateral movement slider via a precision-rolled threaded steel bar.

[0017] The transverse slider includes a support frame, the support frame is provided with a threaded mounting plate, the finely rolled threaded steel bar is threadedly connected to the threaded mounting plate, and the jack drives the transverse slider to slide laterally through the finely rolled threaded steel bar.

[0018] In conjunction with the first aspect, in one embodiment, a plurality of bogies are provided between the longitudinal sliding block and the winch, and the wire rope passes through the plurality of bogies to connect the longitudinal sliding block and the winch.

[0019] The multiple bogies adjust the direction of the wire rope, so that the traction force of the winch is converted into the power for the longitudinal sliding of the longitudinal slider through the wire rope, thereby improving the connection stability between the wire rope and the winch.

[0020] In conjunction with the first aspect, in one embodiment, the sliding support includes multiple steel pipe piles, with multiple connecting piles between adjacent steel pipe piles, and the multiple steel pipe piles are supported on the sliding beam.

[0021] The steel pipe piles are supported on the ground, and multiple connecting piles are set between two adjacent steel pipe piles. The multiple connecting piles can be set in a V-shape or a rectangle to connect two adjacent steel pipe piles, thereby improving the connection stability of the two adjacent steel pipe piles and lowering the center of gravity of the two adjacent steel pipe piles, thereby improving the overturning resistance of the two adjacent steel pipe piles.

[0022] In conjunction with the first aspect, in one embodiment, a Bailey beam is provided between the sliding support and the slide beam, and the slide beam is supported on the Bailey beam.

[0023] The Bailey bridge beam is placed on multiple steel pipe piles, and the slide beam is fixed on the Bailey bridge beam to improve the connection stability and support strength of the slide beam.

[0024] In conjunction with the first aspect, in one embodiment, the sliding support is provided with a pair of slide beams, the pair of slide beams being connected by a connecting rod.

[0025] The pair of slide beams are connected by the connecting rod, forming a whole, allowing the longitudinal slider to slide along the longitudinal direction of the slide beam and the transverse slider to slide along the transverse direction of the slide beam.

[0026] The beneficial effects of the technical solutions provided in this application include:

[0027] By installing longitudinal sliding blocks on the sliding beam and lateral sliding blocks on the longitudinal sliding blocks, the steel box girder placed on the lateral sliding blocks can be longitudinally slid by the cooperation of a winch and wire rope, and the lateral sliding blocks can be laterally slid by the lateral driving mechanism. This makes the sliding process of the steel box girder controllable and solves the problems of low stability, long sliding time and low sliding accuracy of steel box girder segment sliding systems in related technologies, which affect construction efficiency and construction quality. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a longitudinal structural schematic diagram of a steel box girder sliding system provided in an embodiment of this application;

[0030] Figure 2 This is a schematic diagram of the transverse structure of a steel box girder sliding system provided in an embodiment of this application;

[0031] Figure 3 This is a schematic diagram of the structure of the longitudinal sliding slider and the transverse sliding slider provided in the embodiments of this application;

[0032] Figure 4 This is a schematic diagram of the structure of the longitudinal sliding block provided in an embodiment of this application;

[0033] Figure 5 This is a schematic diagram of the structure of the transverse slider provided in an embodiment of this application;

[0034] Figure 6 This is a schematic diagram of the slide beam provided in an embodiment of this application.

[0035] In the diagram: 1. Sliding support; 101. Steel pipe pile; 102. Connecting pile; 2. Sliding beam; 3. Longitudinal sliding block; 31. Section steel; 32. MGE plate; 4. Winch; 5. Wire rope; 6. Lateral sliding block; 7. Shackle; 8. Tie rod; 9. Jack; 10. Precision rolled threaded steel bar; 11. Bogie; 12. Bailey bridge beam. Detailed Implementation

[0036] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0037] This application provides a steel box girder sliding system that can solve the technical problems of low sliding accuracy, low stability during sliding, and long sliding time in steel box girder segment sliding systems, which affect construction efficiency and construction quality.

[0038] See Figure 1-3As shown in the figure, this application provides a steel box girder sliding system, which includes: a sliding support 1, a longitudinal sliding block 3, a winch 4, and a lateral driving mechanism. The sliding support 1 is provided with a slide beam 2; the longitudinal sliding block 3 is slidably disposed on the slide beam 2; the winch 4 is connected to the longitudinal sliding block 3 through a steel wire rope 5, and the longitudinal sliding block 3 is equipped with a lateral sliding block 6; the lateral driving mechanism is connected to the lateral sliding block 6, and the lateral driving mechanism is configured to drive the lateral sliding block 6 to move laterally.

[0039] In this embodiment, the transverse slider 6 is installed on the longitudinal sliding slider 3, and a steel box girder is placed on the transverse sliding slider 6. After welding, the steel box girder is transported by ship and hoisted onto the transverse sliding slider 6. The winch 4 pulls the longitudinal sliding slider 3 along the slide beam 2 longitudinally via the wire rope 5, thereby realizing the longitudinal sliding of the steel box girder. When the steel box girder slides longitudinally to the set position, the longitudinal sliding operation ends. During the longitudinal sliding of the steel box girder, the longitudinal sliding slider 3 and the transverse sliding slider 6 are fixed, and the steel box girder... After the longitudinal sliding is completed, the lateral sliding condition begins. The lateral driving mechanism drives the lateral sliding slider 6 to slide laterally, thereby realizing the lateral sliding of the steel box girder. When the steel box girder slides laterally to the set position, the entire sliding condition ends. The steel box girder sliding system has strong strength, stability and high sliding accuracy, realizing precise positioning and adjustment of the steel box girder. Moreover, the longitudinal sliding slider 3 and the lateral sliding slider 6 are assembled, which is convenient for installation and disassembly. The jacking efficiency is high, no interruption or conversion is required, and it can slide directly into place, shortening the sliding time.

[0040] In this embodiment, the longitudinal sliding block 3 is slidably mounted on the sliding beam 2, and the transverse sliding block 6 is installed on the longitudinal sliding block 3. The steel box girder placed on the transverse sliding block 6 can be longitudinally slid by the winch 4 and the wire rope 5, and the transverse sliding block 6 is driven by the transverse driving mechanism to achieve lateral sliding. This makes the sliding process of the steel box girder controllable and solves the problems of low stability, long sliding time and low sliding accuracy of steel box girder segment sliding systems in related technologies, which affect construction efficiency and construction quality.

[0041] Further, see Figure 1 and Figure 3 As shown, in some embodiments, the bottom of the longitudinal slider 3 is provided with a shackle 7, and the wire rope 5 passes through the shackle 7 to connect the longitudinal slider 3 and the winch 4.

[0042] In this embodiment, the longitudinal sliding block 3 is connected to the wire rope 5 via the shackle 7, which facilitates adjusting the sliding direction of the longitudinal sliding block 3 according to the traction direction.

[0043] Further, see Figure 1 , Figure 3 and Figure 6 As shown, in some embodiments, the sliding bracket 1 is provided with a pair of sliding beams 2, each of the sliding beams 2 is slidably mounted with a longitudinal slider 3, and the two longitudinal sliders 3 are connected by a tie rod 8.

[0044] In this embodiment, the sliding support 1 is the basic structure of the steel box girder sliding system, the sliding beam 2 is used to support and guide the longitudinal sliding of the longitudinal sliding block 3, and the two longitudinal sliding blocks 3 are connected by the tie rod 8 to form a whole to support the steel box girder to slide longitudinally on a pair of sliding beams 2.

[0045] Further, see Figure 3 and Figure 4 As shown, in some embodiments, each longitudinal slider 3 includes a plurality of steel profiles 31, the plurality of steel profiles 31 are arranged in parallel, and two adjacent steel profiles 31 are fixed, and the shackles 7 are provided at the bottom of the plurality of steel profiles 31.

[0046] In this embodiment, multiple steel sections 31 are fixed by a support frame, the top of the multiple steel sections 31 forms a support platform for the steel box girder, and the bottom of the multiple steel sections 31 is provided with the shackle 7 to connect the winch 4.

[0047] Further, see Figure 1 and Figure 4 As shown, in some embodiments, an MGE plate 32 is fixed to the bottom of a plurality of the steel profiles 31, and the MGE plate 32 is slidably mounted on the slide beam 2.

[0048] In this embodiment, the MGE plate (engineering plastic alloy plate) 32 has the characteristic of low friction coefficient. The MGE plate 32 is slidably mounted on the slide beam 2, so that the longitudinal slider 3 is more stable during the sliding process.

[0049] Further, see Figure 2 , Figure 3 and Figure 5 As shown, in some embodiments, the lateral movement drive mechanism includes a jack 9, which is connected to the lateral movement slider 6 via a precision-rolled threaded steel bar 10.

[0050] In this embodiment, the transverse slider 6 includes a support frame, the support frame is provided with a threaded mounting plate, the finely rolled threaded steel bar 10 is threadedly connected to the threaded mounting plate, and the jack 9 drives the transverse slider 6 to slide laterally through the finely rolled threaded steel bar 10.

[0051] Further, see Figure 1As shown, in some embodiments, a plurality of bogies 11 are provided between the longitudinal sliding block 3 and the winch 4, and the wire rope 5 passes through the plurality of bogies 11 to connect the longitudinal sliding block 3 and the winch 4.

[0052] In this embodiment, the multiple bogies 11 adjust the direction of the wire rope 5 so that the traction force of the winch 4 is converted into the longitudinal sliding power of the longitudinal sliding block 3 through the wire rope 5, thereby improving the connection stability between the wire rope 5 and the winch 4.

[0053] Further, see Figure 1 As shown, in some embodiments, the sliding support 1 includes multiple steel pipe piles 101, and multiple connecting piles 102 are provided between two adjacent steel pipe piles 101. The multiple steel pipe piles 101 are supported on the sliding beam 2.

[0054] In this embodiment, multiple steel pipe piles 101 are supported on the ground, and multiple connecting piles 102 are provided between two adjacent steel pipe piles 101. The multiple connecting piles 102 can be set as V-shaped or rectangular to connect two adjacent steel pipe piles 101, thereby improving the connection stability of two adjacent steel pipe piles 101 and lowering the center of gravity of two adjacent steel pipe piles 101, thereby improving the overturning resistance of two adjacent steel pipe piles 101.

[0055] Further, see Figure 1 As shown, in some embodiments, a Bailey beam 12 is provided between the sliding support 1 and the slide beam 2, and the slide beam 2 is supported on the Bailey beam 12.

[0056] In this embodiment, the Bailey beam 12 is placed on multiple steel pipe piles 101, and the slide beam 2 is fixed on the Bailey beam 12, thereby improving the connection stability and support strength of the slide beam 2.

[0057] Further, see Figure 1 and Figure 6 As shown, in some embodiments, the sliding bracket 1 is provided with a pair of slide beams 2, and the pair of slide beams 2 are connected by a connecting rod.

[0058] In this embodiment, a pair of slide beams 2 are connected by the connecting rod, so that the pair of slide beams 2 form a whole, allowing the longitudinal slider 3 to slide along the longitudinal direction of the slide beam 2, and the transverse slider 6 to slide along the transverse direction of the slide beam 2.

[0059] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship 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, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0060] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0061] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this 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 this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A steel box girder sliding system, characterized in that, It includes: A sliding support (1) is provided with a sliding beam (2); A longitudinal sliding block (3) is slidably mounted on the slide beam (2); A winch (4) is connected to the longitudinal sliding block (3) via a wire rope (5), and the longitudinal sliding block (3) is equipped with a transverse sliding block (6); A lateral movement drive mechanism is connected to the lateral movement slider (6) and is configured to drive the lateral movement slider (6) to move laterally.

2. The steel box girder sliding system as described in claim 1, characterized in that, The bottom of the longitudinal sliding block (3) is provided with a shackle (7), and the wire rope (5) passes through the shackle (7) to connect the longitudinal sliding block (3) and the winch (4).

3. The steel box girder sliding system as described in claim 2, characterized in that, The sliding bracket (1) is provided with a pair of sliding beams (2), and each sliding beam (2) is slidably mounted with a longitudinal slider (3). The two longitudinal sliders (3) are connected by a tie rod (8).

4. The steel box girder sliding system as described in claim 2, characterized in that, Each longitudinal sliding block (3) includes multiple steel profiles (31), which are arranged in parallel and two adjacent steel profiles (31) are fixed. The bottom of the multiple steel profiles (31) is provided with the shackle (7).

5. The steel box girder sliding system as described in claim 4, characterized in that, MGE plates (32) are fixed to the bottom of multiple steel sections (31), and the MGE plates (32) are slidably mounted on the slide beam (2).

6. The steel box girder sliding system as described in claim 1, characterized in that, The transverse drive mechanism includes a jack (9), which is connected to the transverse slider (6) via a finely rolled threaded steel bar (10).

7. The steel box girder sliding system as described in claim 1, characterized in that, Multiple bogies (11) are provided between the longitudinal sliding block (3) and the winch (4), and the wire rope (5) passes through the multiple bogies (11) to connect the longitudinal sliding block (3) and the winch (4).

8. The steel box girder sliding system as described in claim 1, characterized in that, The sliding support (1) includes multiple steel pipe piles (101), and multiple connecting piles (102) are provided between two adjacent steel pipe piles (101). The multiple steel pipe piles (101) are supported on the sliding beam (2).

9. The steel box girder sliding system as described in claim 1, characterized in that, A Bailey beam (12) is provided between the sliding support (1) and the slide beam (2), and the slide beam (2) is supported on the Bailey beam (12).

10. The steel box girder sliding system as described in claim 1, characterized in that, The sliding support (1) is provided with a pair of slide beams (2), and the pair of slide beams (2) are connected by a connecting rod.

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