Combination beam assembly incremental launching construction platform

Abstract

The utility model relates to a combined beam assembling and pushing construction platform which is arranged on a temporary trestle and comprises an assembling support, a pile top cross beam and a sliding rail. A group of steel pipe piles are correspondingly arranged on the two sides of the assembling support, each group of steel pipe piles comprises at least four steel pipe piles, a connecting structure is arranged between every two adjacent steel pipe piles, and connecting plates used for welding and fixing are arranged between the bottoms of the steel pipe piles and the temporary trestle foundation. The pile top cross beam is arranged at the top of the group of steel pipe piles. The sliding rail is arranged between the two pile top cross beams, and a sliding carrier capable of reciprocating along the sliding rail is arranged on the sliding rail. A temporary trestle structure is fully utilized, the incremental launching construction platform is directly arranged on the trestle to form a double-layer structure, the process that a large number of buried steel pipe pile foundations need to be reset for a traditional incremental launching construction platform is avoided, the arrangement number and the work amount of the steel pipe pile foundations are reduced, and the construction cost is reduced; and additional foundation treatment work caused by complex geological conditions is also avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge construction technical field, concretely relates to a combined beam assembling push construction platform. BACKGROUND

[0002] The push construction platform is important construction equipment widely used in super bridge construction, and is usually used for bridge segment assembling and sliding push construction.

[0003] However, the traditional push platform mostly needs to set a large number of steel pipe pile foundations at the construction site again, and the steel pipe pile structure directly into the earth has long construction period, large engineering quantity, and high foundation treatment requirement, is limited by the site geological condition, increases the construction difficulty and cost. UTILITY MODEL CONTENTS

[0004] The utility model discloses a combined beam assembling push construction platform, can fully utilize the temporary trestle structure, sets the push construction platform directly on the trestle and forms double-layer structure, avoids the complicated construction technology that the traditional push construction platform needs to set a large number of steel pipe pile foundations again, not only reduces the setting quantity and engineering quantity of steel pipe pile foundation, reduces the construction cost, also avoids the additional foundation treatment work caused by the complex geological condition.

[0005] To achieve the above-mentioned purpose, the utility model provides a combined beam assembling push construction platform, sets up on the temporary trestle, and includes:

[0006] The assembling support is provided with a group of steel pipe piles on both sides, and the group of steel pipe piles includes at least four steel pipe piles, and a connecting structure is arranged between the adjacent two steel pipe piles, and a connecting plate for welding fixation is arranged between the bottom of the steel pipe pile and the temporary trestle foundation.

[0007] The pile top cross beam is arranged at the top of the group of steel pipe piles.

[0008] The sliding track is arranged between the two pile top cross beams, and the sliding track is provided with a sliding carrier for pushing the combined beam and reciprocally moving along the sliding track.

[0009] Optionally, the size specification of the steel pipe pile under the sliding track in the group of steel pipe piles is the largest.

[0010] Optionally, the connecting structure includes:

[0011] At least one set of horizontal couplings is provided between two adjacent steel pipe piles, and one set of horizontal couplings includes two horizontal couplings;

[0012] A vertical rod is installed between two horizontal bracing members within the same group;

[0013] The diagonal brace is installed within the rectangular frame formed by the adjacent steel pipe piles, the vertical rods, and a group of horizontal bracing.

[0014] Optionally, a shock-absorbing device or a sliding damping device is provided at the connection between the steel pipe pile and the temporary trestle foundation.

[0015] Optionally, the pile top beam and the steel pipe pile are connected by a flange or an insert sleeve.

[0016] Optionally, a reinforcing plate for enhancing the stiffness of the joint is provided between the steel pipe pile and the pile top beam, and between the horizontal brace and the vertical rod and the diagonal brace.

[0017] Optionally, the two ends of the pile top beam are respectively provided with side box assembly supports for supporting the composite beam.

[0018] The beneficial effects of this utility model are as follows: By fully utilizing the temporary trestle structure, the jacking construction platform is directly set on the trestle to form a double-layer structure, avoiding the cumbersome construction process of traditional jacking construction platforms that require the re-installation of numerous steel pipe pile foundations. This not only reduces the number of steel pipe pile foundations and the amount of work, lowering construction costs, but also avoids additional foundation treatment work due to complex geological conditions. Simultaneously, at least four steel pipe piles are installed on each side of the assembly support, with connecting structures between adjacent steel pipe piles, forming a robust support system that effectively distributes the load and enhances the ability to resist lateral forces, significantly improving the overall stability and load-bearing capacity of the jacking construction platform.

[0019] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0020] Figure 1 This is a schematic structural diagram of a combined beam assembly and jacking construction platform according to an embodiment of the present invention;

[0021] In the diagram: 1. Assembly support; 2. Pile top beam; 3. Sliding track; 4. Steel pipe pile; 5. Connecting structure; 51. Horizontal bracing; 52. Vertical rod; 53. Diagonal bracing; 6. Sliding vehicle; 7. Side box assembly support. Detailed Implementation

[0022] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," 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 utility model 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 utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0025] Please see Figure 1 A preferred embodiment of this application shows a composite beam assembly and jacking construction platform, set on a temporary trestle, including an assembly support 1, a pile top crossbeam 2, and a sliding track 3. A set of steel pipe piles 4 are arranged on both sides of the assembly support 1, each set including at least four steel pipe piles 4. A connecting structure 5 is provided between adjacent steel pipe piles 4, and a connecting plate for welding and fixing is provided between the bottom of the steel pipe pile 4 and the foundation of the temporary trestle. The pile top crossbeam 2 is located on top of the set of steel pipe piles 4. The sliding track 3 is located between two pile top crossbeams 2, and a sliding carrier 6 is provided on the sliding track 3, which can reciprocate along the sliding track 3 and is used for jacking the composite beam.

[0026] According to the embodiment of this utility model, by making full use of the temporary trestle structure, the jacking construction platform is directly set on the trestle to form a double-layer structure. This avoids the cumbersome construction process of traditional jacking construction platforms that require the re-installation of a large number of steel pipe piles 4 for foundation. This not only reduces the number of steel pipe piles 4 foundations and the amount of work, lowering construction costs, but also avoids additional foundation treatment work due to complex geological conditions. Simultaneously, at least four steel pipe piles 4 are installed on each side of the assembly support 1, and a connecting structure 5 is installed between adjacent steel pipe piles 4, forming a robust support system that effectively distributes the load and enhances the ability to resist lateral forces, significantly improving the overall stability and load-bearing capacity of the jacking construction platform.

[0027] The following detailed description uses specific examples:

[0028] Among the group of steel pipe piles 4, the steel pipe pile 4 located under the sliding track 3 has the largest size, meaning that the size of this steel pipe pile 4 located under the sliding track 3 is larger than that of the other steel pipe piles 4. Specifically, in this embodiment, the group of steel pipe piles 4 includes five piles, arranged along the width of the bridge deck. Among them, the two steel pipe piles 4 under the sliding track 3 have a size of φ800×8mm, and the size of the remaining steel pipe piles 4 is φ630×6mm. The pile top beam 2 is made of 3-section HN500×200mm steel, and the sliding track 3 is made of 4-section HN700×300mm steel. Compared with the traditional method of uniformly configuring steel pipe piles 4 of the same specification, this hierarchical design can not only optimize the load design and make the load-bearing more stable, but also save material costs and improve resource utilization efficiency. The selection of the pile top beam 2 and the sliding track 3 can ensure that the load can be smoothly distributed to each pile top beam 2 during the process of transferring from the track to the steel pipe piles 4, avoiding the problem of local stress concentration.

[0029] Please see Figure 1The connecting structure 5 includes at least one set of horizontal bracing 51, vertical rods 52, and diagonal braces 53. The at least one set of horizontal bracing 51 is disposed between two adjacent steel pipe piles 4, and each set of horizontal bracing 51 includes two horizontal bracing 51s. The vertical rods 52 are disposed between two horizontal bracing 51s within the same set. The diagonal braces 53 are disposed within a rectangular frame formed by adjacent steel pipe piles 4, vertical rods 52, and a set of horizontal bracing 51. Specifically, in this embodiment, the horizontal bracing 51, vertical rods 52, and diagonal braces 53 of the steel pipe piles 4 in the bridge length direction are all made of φ426×6mm steel pipes; the horizontal bracing 51 of the steel pipe piles 4 in the bridge width direction is made of φ426×6mm steel pipes; the vertical rods 52 are made of φ273×6mm steel pipes; and the diagonal braces 53 are made of [20 channel steel.] Through multi-stage force transmission via the pile top beam 2, steel pipe piles 4, horizontal bracing 51, vertical rods 52, and diagonal bracing 53, the structural stress path is fully optimized, avoiding overloading of single components, reducing local stress concentration, and further improving the platform's service life and construction safety. Furthermore, the connecting structures 5 in the bridge's length and width directions can be further connected by steel pipes to form a three-dimensional frame structure, enhancing overall shear and torsional resistance and ensuring the stability and durability of the support during the jacking construction.

[0030] The connection between the steel pipe pile 4 and the temporary trestle foundation is equipped with a vibration damping device or a sliding damping device. This device is used to mitigate potential vibrations or horizontal displacements during construction.

[0031] The top beam 2 of the pile is connected to the steel pipe pile 4 via a flange or an insert sleeve. The flange connection and insert sleeve design facilitate installation and disassembly, meeting the actual needs of temporary construction scaffolding.

[0032] Reinforcing plates are installed between the steel pipe pile 4 and the pile top beam 2, and between the horizontal brace 51, the vertical rod 52, and the diagonal brace 53 to enhance the stiffness of the joints. By designing reinforcing plates at the joints, the stiffness of the joints can be enhanced and stress concentration can be reduced.

[0033] Please see Figure 1 The top beam 2 of the pile is equipped with side box assembly supports 7 at both ends to support the composite beam. The side box assembly supports 7 can support the composite beam during the assembly process.

[0034] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0035] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A composite beam assembly and jacking construction platform, set on a temporary trestle, characterized in that, include: The assembly support frame has a set of steel pipe piles on both sides, and the set of steel pipe piles includes at least four steel pipe piles. A connecting structure is provided between two adjacent steel pipe piles, and a connecting plate for welding and fixing is provided between the bottom of the steel pipe pile and the foundation of the temporary trestle bridge. A pile top beam is installed on top of a group of steel pipe piles; A sliding track is provided between the two pile top beams, and a sliding carrier is provided on the sliding track to move back and forth along the sliding track and to push the composite beam.

2. The composite beam assembly and launching construction platform according to claim 1, characterized in that, The steel pipe pile located under the sliding track in the group of steel pipe piles has the largest size.

3. The composite beam assembly and launching construction platform according to claim 1, characterized in that, The connection structure includes: At least one set of horizontal couplings is provided between two adjacent steel pipe piles, and one set of horizontal couplings includes two horizontal couplings; A vertical rod is installed between two horizontal bracing members within the same group; The diagonal brace is installed within the rectangular frame formed by the adjacent steel pipe piles, the vertical rods, and a group of horizontal bracing.

4. The composite beam assembly and jacking construction platform according to claim 1, characterized in that, The connection between the steel pipe piles and the temporary trestle foundation is equipped with a shock absorption device or a sliding damping device.

5. The composite beam assembly and launching construction platform according to claim 1, characterized in that, The pile top beam is connected to the steel pipe pile via a flange or an insert sleeve.

6. The composite beam assembly and launching construction platform according to claim 3, characterized in that, A reinforcing plate is provided between the steel pipe pile and the pile top beam, and between the horizontal brace and the vertical rod and the diagonal brace to enhance the stiffness of the joint.

7. The composite beam assembly and launching construction platform according to claim 1, characterized in that, The two ends of the pile top beam are respectively provided with side box assembly supports for supporting the composite beam.

Images