Temporary pier support structure convenient to disassemble and assemble

Abstract

The utility model discloses a temporary pier support structure convenient to disassemble and assemble, which is formed by splicing a plurality of sections, and each section comprises a steel pipe column block and a parallel connection block; the steel pipe column blocks comprise steel pipe columns, first transverse rods and first inclined rods, the steel pipe columns are connected through the first transverse rods and the first inclined rods to form the steel pipe column blocks, and the steel pipe column blocks are stacked, connected and fixed in the vertical direction to form a temporary pier column body; and the parallel connection block piece comprises second transverse rods, second inclined rods and parallel connection vertical rods, the second transverse rods, the second inclined rods and the parallel connection vertical rods are connected to form the parallel connection block piece, and the parallel connection block piece is used for connecting and fixing the temporary pier column bodies. According to the utility model, by adopting the sectional and faceted design, backfield modular prefabrication and on-site component installation, the risk of high-altitude operation is reduced, and the erection quality of the bracket is guaranteed, so that the overall operation efficiency of dismantling the temporary pier stud bracket structure is improved, the construction speed of bridge engineering is accelerated, the project construction period is shortened, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary construction of road and bridge engineering, in particular to a temporary pier support structure which is easy to disassemble and assemble. Background Art

[0002] During the construction of bridge projects, especially large-span bridge sections, it is often necessary to build temporary pier support structures to assist in the construction of bridges. These temporary pier support structures serve as temporary support and fixation for the bridge sections to facilitate the connection and construction between the bridge deck segments. After the construction of the bridge deck segments is completed, these temporary pier support structures need to be dismantled. Existing temporary pier supports are usually built entirely by on-site welding. On the one hand, the installation and construction efficiency is low, lifting equipment resources are wasted, and the construction period is long; on the other hand, there are many operating steps and processes, and the welding and construction quality of the temporary pier supports is difficult to guarantee. For this reason, it is necessary to design and develop temporary pier support structures that are easy to disassemble and assemble, so as to improve the overall efficiency of the temporary pier support structure dismantling, speed up the construction of bridge projects, shorten the project period, and reduce costs. Utility Model Content

[0003] In order to solve the above problems, the present invention provides a temporary pier support structure that is easy to disassemble and assemble. The technical solution of the present invention is:

[0004] A temporary pier support structure that is easy to disassemble and assemble is composed of several segments, the segments including steel pipe column blocks and parallel connecting blocks; the steel pipe column blocks include steel pipe columns, first cross bars and first diagonal bars, the steel pipe columns are connected to form the steel pipe column blocks through several first cross bars and first diagonal bars, and the steel pipe column blocks are vertically stacked and fixed to form a temporary pier column body; the parallel connecting block includes a second cross bar, a second diagonal bar and parallel connecting vertical bars, several of the second cross bars, second diagonal bars and parallel connecting vertical bars are connected to form the parallel connecting block, and the parallel connecting block is used to connect and fix the temporary pier column bodies.

[0005] As a further description of the present invention, the steel pipe column block includes one or more first prefabricated modules, and the first prefabricated module is an integral prefabricated structure composed of a plurality of steel pipe columns, a first cross bar and a first diagonal bar.

[0006] Furthermore, the parallel connection block includes one or more second prefabricated modules, and the second prefabricated module is an integral prefabricated structure composed of a plurality of second transverse rods and second diagonal rods.

[0007] Furthermore, a plurality of first connecting corbels are provided on the steel pipe column, and the first connecting corbels are provided at the connection between the first cross bar and / or the first diagonal bar and the steel pipe column.

[0008] Furthermore, the number of the parallel connection blocks is less than the number of the segments, and the parallel connection blocks are arranged at intervals between the temporary pier columns along the vertical direction.

[0009] Furthermore, a plurality of second connecting corbels are provided on the second cross bar, and the second connecting corbels are provided at the connection between the second cross bar, the second diagonal bar and the parallel vertical bar.

[0010] Beneficial effects of the utility model:

[0011] The temporary pier support structure of this utility model adopts a segmented and faceted design, modular prefabrication in the back field, and component installation on site. Compared with the traditional support installation, it reduces the risk of high-altitude operations and ensures the quality of support erection, thereby improving the overall efficiency of the dismantling of the temporary pier support structure, accelerating the speed of bridge construction, shortening the project period, and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is an overall diagram of a temporary pier support structure that is easy to disassemble and assemble according to an embodiment of the utility model;

[0013] Figure 2 This is a diagram of the disassembly operation of the temporary pier support structure that is easy to disassemble and assemble according to the embodiment of the utility model. Figure 1 ;

[0014] Figure 3 This is a diagram of the disassembly operation of the temporary pier support structure that is easy to disassemble and assemble according to the embodiment of the utility model. Figure 2 .

[0015] Figure numerals: steel pipe column block 1, steel pipe column 101, first cross bar 102, first diagonal bar 103, parallel block 2, second cross bar 201, second diagonal bar 202, parallel vertical bar 203, first connecting corbel frame 3, second connecting corbel frame 4, bridge deck longitudinal movement trolley 5, crawler crane 6, work platform 7, steel box girder 8. DETAILED DESCRIPTION

[0016] Example:

[0017] The following is a detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0018] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0019] As attached Figure 1 As shown, a temporary pier support structure that is easy to disassemble and assemble in this embodiment is spliced ​​together by several segments, and the segments include a steel pipe column block 1 and a parallel block 2; the steel pipe column block 1 includes a steel pipe column 101, a first cross bar 102 and a first diagonal bar 103, and the steel pipe columns 101 are connected to form the steel pipe column block 1 through several first cross bars 102 and first diagonal bars 103, and the steel pipe column blocks 1 are vertically stacked and fixed to form a temporary pier column body; the parallel block 2 includes a second cross bar 201, a second diagonal bar 202 and a parallel vertical bar 203, and several of the second cross bars 201, the second diagonal bar 202 and the parallel vertical bar 203 are connected to form the parallel block 2, and the parallel block 2 is used for connecting and fixing the temporary pier column bodies. This new temporary pier support structure adopts a segmented and faceted design, modular prefabrication in the back field, and on-site component installation. Compared with traditional support installation, it reduces the risk of high-altitude operations and ensures the quality of support erection, thereby improving the overall efficiency of the temporary pier support structure dismantling, speeding up the bridge construction speed, shortening the project period, and reducing costs.

[0020] As a further illustration of the present invention, the steel pipe column block 1 includes one or more first prefabricated modules, and the first prefabricated module is an integral prefabricated structure consisting of a plurality of steel pipe columns 101, a first cross bar 102, and a first diagonal bar 103. In this way, the steel pipe column block 1 of this embodiment is divided into a plurality of small modules, each of which is prefabricated by modularization in the back field. When installation is required, these prefabricated small modules are transported to the working platform 7 of the temporary pier support, and are hoisted and welded in blocks by hoisting equipment to realize on-site component installation, thereby improving the installation efficiency of the temporary pier support.

[0021] Similarly, the parallel block 2 of this embodiment includes one or more second prefabricated modules, and the second prefabricated module is an integral prefabricated structure composed of a plurality of second horizontal bars 201, a second diagonal bar 202 and a parallel vertical bar 203. In this way, the parallel block 2 of this embodiment is also divided into a plurality of small modules, each of which is prefabricated by modularization in the back field. When installation is required, these prefabricated small modules are transported to the working platform 7 of the temporary pier support, and are hoisted and welded in blocks through hoisting equipment to realize on-site component installation, thereby improving the installation efficiency of the temporary pier support.

[0022] In this embodiment, a number of first connecting corbels 3 are provided on the steel pipe column 101. Specifically, these first connecting corbels 3 are provided at the connection between the first cross bar 102 and / or the first diagonal bar 103 and the steel pipe column 101, and are used to install the scaffolding platform of the steel pipe column block 1.

[0023] In this embodiment, the number of the parallel connecting blocks 2 is less than the number of the segments, and the parallel connecting blocks 2 are arranged at intervals between the temporary pier columns along the vertical direction. On the premise of ensuring that the overall structural strength of the temporary pier support meets the design requirements, the material usage is reduced and the cost is lowered.

[0024] In this embodiment, a plurality of second connecting corbels 4 are provided on the second cross bar 201 . Specifically, these second connecting corbels 4 are provided at the connection between the second cross bar 201 and the second diagonal bar 202 and the parallel vertical bar 203 , and are used for installing the scaffolding platform of the parallel block 2 .

[0025] For details, please refer to the attached Figure 2-3 As shown in the figure, the temporary pier support structure of this embodiment is easy to disassemble and assemble, and can be disassembled in sections and blocks after use. Figure 2-3 As shown, in an actual application, the temporary pier support of this embodiment includes 5 segments, namely the 1st segment, the 2nd segment, the 3rd segment, the 4th segment and the 5th segment from top to bottom. During the dismantling process of the temporary pier support, first, the original tensioning platform base (the base is equipped with 6 sets of tank wheels, and the 3t winch fixed to the base completes the traction longitudinal walking function) is used to make a bridge deck longitudinal moving trolley 5 on the bridge deck, and the two tensioning platform bases are connected into a whole through 4 sets of 21-meter Bailey beams, spanning the single-span bridge deck. The Bailey beam and the tensioning platform are fixed in a riding style with channel steel. Two 8t winches and pulley groups are installed on the Bailey truss as a hoist system. The winch is fixed on the double-piece I25 industrial steel, and the industrial steel and the Bailey beam are fixed in a riding style with [10 channel steel. On the bottom platform of the beam, 4 sets of 21-meter-long Baileys are assembled into a beam spanning the width of the single-span bridge as a load-bearing shoulder beam. The two winch lifting systems of the bridge deck trusses are used to connect the shoulder beams, and the bottom support of the beams is removed by using the longitudinal moving trolley to complete the lifting and moving functions.

[0026] See attached Figure 3 As shown, the steel pipe column 101 is removed in sections and pieces. The first (top) section is 12 meters long, and the maximum total weight of a single section with three parallel joints is approximately 20 tons. Two 8-ton winches equipped with a 4-speed pulley block are used to lift the bridge deck gantry crane, meeting the needs of the demolition. After connecting the section to be removed with a jack rope, the winch is raised to fully load the gantry crane. The connection between the section to be removed and the section to be removed is then released. The winch then lifts the removed steel pipe column 101 (parallel joint) free, then moves it longitudinally out of the top of the bracket and slowly and steadily lowers it to the platform. Then, a crawler crane 6 is used to turn it over and hoist it to the work platform 7 for disassembly, completing the removal of the top section.

[0027] After the first section of steel pipe column 101 was removed, there was room for crawler crane 6 to operate under the beam. Therefore, the remaining sections of steel pipe column 101 were aligned to the corresponding height range and removed using crawler crane 6. Crawler crane 6 connected steel pipe column 101 (aligned), then released the connection restraints between steel pipe column 101 and the cushion beam. The floating crane was then slowly and steadily raised approximately 0.5m, laterally moving steel pipe column 101 out from under the steel box girder 8 for loading onto the ship, completing the removal. While operating under the steel box girder 8, crawler crane 6 was required to avoid collisions between the crane arm and other parts of the crane with the steel box girder 8.

[0028] The above description is only for the preferred embodiment of the present invention, which should not be construed as limiting the claims. The present invention is not limited to the above embodiment, and its specific structure is allowed to be varied. In short, all variations made within the scope of protection of the independent claims of the present invention are also within the scope of protection of the present invention.

Claims

1. A temporary pier support structure that is easy to disassemble and assemble, characterized by: It is composed of several segments, and the segments include steel pipe column blocks and parallel connecting blocks; the steel pipe column blocks include steel pipe columns, first cross bars and first diagonal bars, and the steel pipe columns are connected to each other through several first cross bars and first diagonal bars to form the steel pipe column blocks, and the steel pipe column blocks are vertically stacked and fixed to form a temporary pier column body; the parallel connecting block includes a second cross bar, a second diagonal bar and parallel connecting vertical bars, and several second cross bars, second diagonal bars and parallel connecting vertical bars are connected to form the parallel connecting block, and the parallel connecting block is used to connect and fix the temporary pier column bodies.

2. The temporary pier support structure that is easy to disassemble and assemble according to claim 1 is characterized in that: The steel pipe column block includes one or more first prefabricated modules, and the first prefabricated module is an integral prefabricated structure consisting of a plurality of steel pipe columns, a first cross bar and a first diagonal bar.

3. The temporary pier support structure that is easy to disassemble and assemble according to claim 1 is characterized in that: The paralleling block comprises one or more second prefabricated modules, and the second prefabricated module is an integral prefabricated structure consisting of a plurality of second transverse rods, second oblique rods and paralleling vertical rods.

4. The temporary pier support structure that is easy to disassemble and assemble according to claim 1 is characterized in that: The steel pipe column is provided with a plurality of first connecting corbels, which are arranged at the connection between the first cross bar and / or the first diagonal bar and the steel pipe column.

5. The temporary pier support structure that is easy to disassemble and assemble according to claim 1 is characterized in that: The number of the parallel connection blocks is less than the number of the segments, and the parallel connection blocks are arranged at intervals between the temporary pier columns along the vertical direction.

6. The temporary pier support structure that is easy to disassemble and assemble according to claim 1 is characterized in that: A plurality of second connecting corbels are provided on the second cross bar, and the second connecting corbels are provided at the connection between the second cross bar, the second oblique bar and the parallel vertical bar.

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