Steel-concrete composite beam bridge deck concrete bracket

Abstract

The invention relates to the technical field of bridge engineering, and discloses a steel-concrete composite beam bridge deck concrete bracket which comprises a bottom plate and a bracket plate, positioning sleeves are installed at the four corners of the upper side of the bottom plate respectively, and positioning insertion rods are installed at the four corners of the lower side of the bracket plate respectively; an I-shaped plate is fixedly installed on the upper portion between the multiple sets of positioning sleeves, hydraulic telescopic rods are rotationally installed on the two opposite sides of the upper sides of side plates at the two ends of the I-shaped plate respectively, a reinforcing supporting plate is installed in the middle of the lower side of the bracket plate, and the upper ends of the hydraulic telescopic rods rotate and incline towards the reinforcing supporting plate and are rotationally connected with the side wall of the reinforcing supporting plate. The device has the following advantages that the bracket plate is driven to move up and down through stretching and retracting of the hydraulic telescopic rods, and stable movement of the bracket plate is ensured through sliding of the positioning insertion rods in the positioning sleeves; the bracket plate is installed through the second inserting cylinder, the second connecting bolt, the inserting block and the second threaded hole, and bracket plates of different sizes can be conveniently replaced in the later period.

Description

Technical Field

[0001] The invention relates to the technical field of bridge engineering, and in particular to a steel-concrete composite beam bridge deck concrete bracket. Background Art

[0002] The basic components of a bridge include the superstructure and the substructure. The superstructure is the main load-bearing structure of the bridge, located above the support and spanning obstacles; while the substructure includes piers, abutments, foundations and supports, etc., which are used to support the superstructure and transfer the load from it to the foundation.

[0003] Bridge abutments are usually supported by steel-concrete composite beams, which are beams that are connected by steel beams and concrete slabs and can bear force together within the cross section. Steel-concrete composite beam construction refers to a construction method in which steel beams are processed and assembled in a processing plant, and then hoisted and assembled on site, and precast concrete slabs or cast-in-place concrete bridge decks are installed. It is a bending member that works together by connecting the steel beam and the concrete slab as a whole. Under the action of load, the concrete slab is compressed and the steel beam is tensile, giving full play to the material properties of steel and concrete. Practice has proved that steel-concrete composite beams take into account the advantages of both steel structures and concrete structures, have significant technical, economic and social benefits, and are one of the important development directions of structural systems.

[0004] There are two ways to make steel-concrete composite beams and slabs: one is prefabrication and assembly, that is, the bridge deck is prefabricated in the prefabrication yard according to the construction drawings, and then transported to the site for hoisting and assembly; the other is on-site casting, that is, setting up brackets and installing formwork at the construction site, and casting concrete on-site. On-site casting requires the use of steel pipe brackets to support the brackets. The existing steel pipe brackets for supporting the brackets have the following problems:

[0005] 1. There is no unified standard in design and construction. Most steel pipe brackets are connected and welded on site. After the bracket is assembled, it is impossible to change other sizes, and the versatility is poor;

[0006] 2. The existing steel pipe support structure is fixed and does not have a height adjustment structure, which has certain limitations when used.

[0007] In view of the above technical problems, the present invention proposes a steel-concrete composite beam bridge deck concrete bracket. Summary of the invention

[0008] 1. Technical Problems Solved

[0009] The problem to be solved by the present invention is that most steel pipe brackets are connected by welding on site, have a fixed structure, cannot be replaced with other sizes after the brackets are assembled, do not have a height adjustment structure, and have certain limitations when used.

[0010] 2. Technical Solution

[0011] In order to solve the above technical problems, the technical solution provided by the present invention is: a steel-concrete composite beam bridge deck concrete bracket, which includes a bottom plate and a bracket plate, wherein positioning sleeves are respectively installed at the four corners of the upper side of the bottom plate, and positioning rods are respectively installed at the four corners of the lower side of the bracket plate, and the bottom of the positioning rod is slidably inserted into the interior of the positioning sleeve;

[0012] An I-shaped plate is fixedly installed on the upper part between the multiple groups of positioning sleeves, and hydraulic telescopic rods are rotatably installed on the opposite sides of the upper sides of the side plates at both ends of the I-shaped plate. A reinforced support plate is installed in the middle part of the lower side of the bracket plate, and the upper end of the hydraulic telescopic rod is rotated and tilted toward the direction of the reinforced support plate and is rotatably connected to the side wall of the reinforced support plate.

[0013] As an improvement, multiple groups of threaded shafts are equidistantly installed on the lower side of the reinforced support plate, and multiple groups of through holes for the threaded shafts to slide through are equidistantly installed on the middle side wall of the I-shaped plate. Hexagonal nuts are installed with matching threads on the outside of the threaded shafts and located on the upper side of the I-shaped plate.

[0014] As an improvement, multiple sets of shift plates are installed on the outer wall of the hexagonal nut, and multiple sets of mounting blocks are equidistantly installed on one side wall of the middle side plate of the I-shaped plate. A limiting threaded shaft is installed through the internal matching thread between the upper and lower side walls of the mounting block. The upper part of the limiting threaded shaft passes between the two sets of shift plates, and a tightening block is installed on the lower end of the limiting threaded shaft.

[0015] As an improvement, running wheels are respectively installed at the four corners of the lower side of the base plate, and wheel locks are provided on the running wheels.

[0016] As an improvement, connecting ears three are respectively installed at the upper and lower ends of the hydraulic telescopic rod, and connecting ears one that are rotatably connected to the connecting ears three are respectively installed on the upper sides of the side plates at both ends of the I-shaped plate near the positioning sleeve, and connecting ears two that are rotatably connected to the connecting ears three are installed on the side walls of the reinforced support plate.

[0017] As an improvement, an insert sleeve 1 is installed on the upper side of the base plate to cooperate with the bottom of the positioning sleeve, a connecting bolt 1 passes through the two side walls of the insert sleeve 1, and a threaded hole 1 is provided at the bottom of the positioning sleeve to cooperate with the connecting bolt 1 to pass through.

[0018] As an improvement, a second insert tube is installed on the top of the positioning rod, and two connecting bolts pass through the two side walls of the second insert tube. An insert block inserted into the second insert tube is installed on the lower side of the bracket plate, and the insert block is provided with two threaded holes for matching the two connecting bolts to pass through.

[0019] As an improvement, the inner wall size of the first insert tube is the same as the inner wall size of the second insert tube, and the outer wall size of the insert block is the same as the outer wall size of the positioning insert rod.

[0020] As an improvement, a control switch is installed on one side of the I-shaped plate, and the control switch is connected to multiple groups of hydraulic telescopic rods through wires, and the multiple groups of hydraulic telescopic rods are connected to the same group of switches.

[0021] After adopting the above structure, the present invention has the following advantages:

[0022] 1. The concrete bracket is composed of a bottom plate, a bracket plate and a height adjustment device. The bracket plate is driven to move up and down by multiple sets of hydraulic telescopic rods, and the positioning rod slides on the positioning sleeve to ensure the stable movement of the bracket plate;

[0023] 2. The bracket plate is installed through the second insert tube, the second connecting bolt, the insert block and the second threaded hole, which can ensure the stable installation of the bracket plate and facilitate the later replacement of bracket plates of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the upper structure of a steel-concrete composite beam bridge deck concrete bracket of the present invention.

[0025] Figure 2 It is a schematic diagram of the inner structure of a steel-concrete composite beam bridge deck concrete bracket of the present invention.

[0026] Figure 3 The invention discloses an I-shaped plate connection structure of a steel-concrete composite beam bridge deck concrete bracket.

[0027] Figure 4 The present invention is a schematic diagram of the lower structure of a bracket plate of a steel-concrete composite beam bridge deck concrete bracket.

[0028] Figure 5 It is a schematic diagram of the upper structure of the bottom plate of a steel-concrete composite beam bridge deck concrete bracket of the present invention.

[0029] Figure 6 The invention discloses a structural schematic diagram of a hydraulic telescopic rod of a steel-concrete composite beam bridge deck concrete bracket.

[0030] Figure 7 The invention discloses a hexagonal nut structure schematic diagram of a steel-concrete composite beam bridge deck concrete bracket.

[0031] As shown in the figure: 1. Base plate; 2. Bracket plate; 3. Positioning sleeve; 4. Positioning plug rod; 5. I-shaped plate; 6. Strengthening support plate; 7. Hydraulic telescopic rod; 8. Threaded shaft; 9. Through hole; 10. Hexagonal nut; 11. Dial plate; 12. Mounting block; 13. Limiting threaded shaft; 14. Tightening block; 15. Control switch; 16. Connecting ear one; 17. Connecting ear two; 18. Connecting ear three; 19. Insert tube one; 20. Connecting bolt one; 21. Threaded hole one; 22. Insert tube two; 23. Connecting bolt two; 24. Insert block; 25. Threaded hole two; 26. Travel wheel. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] Example 1

[0034] As attached Figure 1 , Attachment Figure 2 and attached Figure 4 As shown, a steel-concrete composite beam bridge deck concrete bracket includes a base plate 1 and a bracket plate 2. Traveling wheels 26 are respectively installed at the four corners of the lower side of the base plate 1. Wheel locks are provided on the traveling wheels 26. The traveling wheels 26 are used to facilitate the movement of the bracket, and the bracket can be positioned by the wheel locks.

[0035] Positioning sleeves 3 are respectively installed at the four corners of the upper side of the base plate 1, and positioning rods 4 are respectively installed at the four corners of the lower side of the bracket plate 2. The bottom of the positioning rod 4 is slidably inserted into the inside of the positioning sleeve 3, and an I-shaped plate 5 is fixedly installed on the upper part between the multiple groups of positioning sleeves 3. Hydraulic telescopic rods 7 are rotatably installed on the opposite sides of the upper sides of the side plates at both ends of the I-shaped plate 5. The I-shaped plate 5 supports the bottom of the hydraulic telescopic rod 7, and a reinforced support plate 6 is installed in the middle part of the lower side of the bracket plate 2. The reinforced support plate 6 is used to make the bracket plate 2 have better support. The upper end of the hydraulic telescopic rod 7 is rotated and tilted toward the reinforced support plate 6, and is rotatably connected to the side wall of the reinforced support plate 6. A control switch 15 is installed on one side of the I-shaped plate 5, and the control switch 15 is respectively connected to the multiple groups of hydraulic telescopic rods 7 through wires. The multiple groups of hydraulic telescopic rods 7 are connected to the same group of switches, so that the multiple groups of hydraulic telescopic rods 7 can be started and stopped at the same time and telescoped to the same amplitude.

[0036] Through the above structure, the multiple groups of hydraulic telescopic rods 7 are controlled by the control switch 15 to extend and retract. When the multiple groups of hydraulic telescopic rods 7 are extended, the lower side of the bracket plate 2 is pushed upward, and vice versa, the bracket plate 2 is moved downward, and the height of the bracket plate 2 is flexibly controlled. The bottom of the positioning rod 4 is limited and slides inside the positioning sleeve 3, so that the bracket plate 2 remains stable when moving up and down. The specific structure is as follows:

[0037] Combined with Figure 3 and attached Figure 6 As shown, the upper and lower ends of the hydraulic telescopic rod 7 are respectively installed with connecting ears 3 18, and the upper sides of the side plates at both ends of the I-shaped plate 5 are respectively installed with connecting ears 16 that are rotatably connected to the connecting ears 3 18 on both sides, and the side walls of the reinforced support plate 6 are installed with connecting ears 2 17 that are rotatably connected to the connecting ears 3 18. When the hydraulic telescopic rod 7 is extended or retracted, the angle of the hydraulic telescopic rod 7 will be tilted, and the two groups of connecting ears 3 18 rotate inside the connecting ears 1 16 and the connecting ears 2 17 to prevent the angle of the hydraulic telescopic rod 7 from being locked.

[0038] As attached Figure 3 , Attachment Figure 4 and attached Figure 5 As shown, an insert sleeve 19 is installed on the upper side of the base plate 1 to cooperate with the bottom of the positioning sleeve 3, and a connecting bolt 20 passes through the two side walls of the insert sleeve 19. A threaded hole 21 is provided at the bottom of the positioning sleeve 3 to cooperate with the connecting bolt 20 to pass through. An insert sleeve 22 is installed on the top of the positioning rod 4, and a connecting bolt 23 passes through the two side walls of the insert sleeve 22. An insert block 24 is installed on the lower side of the bracket plate 2 to be inserted into the insert sleeve 22, and a threaded hole 25 is provided on the insert block 24 to cooperate with the connecting bolt 23 to pass through.

[0039] Through the above structure, the bottom plate 1 and the bracket plate 2 can be replaced according to the ground environment and the area of ​​the beam bridge. When the bottom plate 1 is replaced, the connecting bolt 20 is taken out from the threaded hole 21 at the bottom of the insert sleeve 19 and the positioning sleeve 3, so that the positioning sleeve 3 can be taken out from the insert sleeve 19, and another set of bottom plates 1 is installed according to the reverse steps of the above disassembly to realize the replacement of the bottom plate 1;

[0040] When the bracket plate 2 is replaced, the connecting bolt 23 is removed from the threaded hole 25 on the insert tube 22 and the insert block 24, and the insert block 24 is removed from the insert tube 22 to realize the disassembly of the bracket plate 2, and another set of bracket plates 2 is installed according to the reverse steps of the above disassembly to realize the replacement of the bracket plate 2.

[0041] Combined with Figure 3 , Attachment Figure 5 and attached Figure 6As shown, the inner wall size of the insert tube 1 19 is the same as the inner wall size of the insert tube 2 22 , and the outer wall size of the insert block 24 is the same as the outer wall size of the positioning insert rod 4 .

[0042] Through the above structure, the positioning sleeve 3 can be inserted into the second inserting sleeve 22, so that the bracket can be installed and used in an up-and-down manner, thereby increasing the use height of the bracket.

[0043] Embodiment 2

[0044] Based on Example 1, please refer to the attached Figure 3 , Attachment Figure 4 and attached Figure 7 , multiple groups of threaded shafts 8 are equidistantly installed on the lower side of the reinforced support plate 6, and multiple groups of through holes 9 for the threaded shafts 8 to slide through are equidistantly provided on the middle side wall of the I-shaped plate 5. A hexagonal nut 10 is installed with a matching thread on the outer side of the threaded shaft 8 and located on the upper side of the I-shaped plate 5. Multiple groups of dial plates 11 are installed on the outer wall of the hexagonal nut 10, and multiple groups of mounting blocks 12 are equidistantly installed on one side wall of the side plate in the middle of the I-shaped plate 5. A limiting threaded shaft 13 is installed by passing through the matching thread between the upper and lower side walls of the mounting block 12. The upper part of the limiting threaded shaft 13 passes between the two groups of dial plates 11, and a screw block 14 is installed on the lower end of the limiting threaded shaft 13.

[0045] Through the above structure of the second embodiment, in order to prevent the bracket plate 2 from sliding downward when the hydraulic telescopic rod 7 is damaged, thereby affecting the pouring of the beam bridge deck, after the height of the bracket plate 2 is adjusted by multiple groups of hydraulic telescopic rods 7, the dial plate 11 is rotated to drive the hexagonal nut 10 to rotate on the outside of the threaded shaft 8, and the lower side of the hexagonal nut 10 is tightly attached to the upper side of the I-shaped plate 5. The screw block 14 is rotated to drive the limiting threaded shaft 13 to rotate inside the mounting block 12 through the screw block 14, so that the limiting threaded shaft 13 moves upward, and the upper part of the limiting threaded shaft 13 passes between the two groups of dial plates 11 to limit the hexagonal nut 10 to prevent the hexagonal nut 10 from rotating when the threaded shaft 8 is subjected to downward pressure.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. 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.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0048] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A steel-concrete composite beam bridge deck concrete bracket, comprising a bottom plate (1) and a bracket plate (2), characterized in that: Positioning sleeves (3) are respectively installed at the four corners on the upper side of the base plate (1), and positioning rods (4) are respectively installed at the four corners on the lower side of the bracket plate (2), and the bottom of the positioning rod (4) is slidably inserted into the interior of the positioning sleeve (3); An I-shaped plate (5) is fixedly installed on the upper part between the plurality of groups of positioning sleeves (3), and hydraulic telescopic rods (7) are rotatably installed on the opposite sides of the upper sides of the side plates at both ends of the I-shaped plate (5), and a reinforcing support plate (6) is installed in the middle of the lower side of the bracket plate (2), and the upper end of the hydraulic telescopic rod (7) is rotated and tilted toward the direction of the reinforcing support plate (6) and is rotatably connected to the side wall of the reinforcing support plate (6).

2. A steel-concrete composite beam bridge deck concrete bracket according to claim 1, characterized in that: A plurality of groups of threaded shafts (8) are equidistantly mounted on the lower side of the reinforcing support plate (6); a plurality of groups of through holes (9) for the threaded shafts (8) to slide through are equidistantly mounted on the middle side wall of the I-shaped plate (5); and a hexagonal nut (10) is threadedly mounted on the outer side of the threaded shaft (8) and located on the upper side of the I-shaped plate (5).

3. A steel-concrete composite beam bridge deck concrete bracket according to claim 2, characterized in that: The outer wall of the hexagonal nut (10) is installed with multiple groups of shifting plates (11), and one side wall of the middle side plate of the I-shaped plate (5) is equidistantly installed with multiple groups of mounting blocks (12). A limiting threaded shaft (13) is installed through the internal matching threads between the upper and lower side walls of the mounting block (12). The upper part of the limiting threaded shaft (13) passes between the two groups of shifting plates (11), and a screw block (14) is installed at the lower end of the limiting threaded shaft (13).

4. The steel-concrete composite beam bridge deck concrete bracket according to claim 1, characterized in that: Traveling wheels (26) are respectively installed at the four corners of the lower side of the base plate (1), and wheel locks are provided on the traveling wheels (26).

5. The steel-concrete composite beam bridge deck concrete bracket according to claim 1, characterized in that: The upper and lower ends of the hydraulic telescopic rod (7) are respectively provided with connecting ears (18), and the upper sides of the side plates at both ends of the I-shaped plate (5) are respectively provided with connecting ears (16) rotatably connected to the connecting ears (18), and the side walls of the reinforcing support plate (6) are provided with connecting ears (17) rotatably connected to the connecting ears (18).

6. The steel-concrete composite beam bridge deck concrete bracket according to claim 1, characterized in that: An insert sleeve (19) is installed on the upper side of the base plate (1) and is inserted into the bottom of the positioning sleeve (3). A connecting bolt (20) passes through the two side walls of the insert sleeve (19). A threaded hole (21) is provided at the bottom of the positioning sleeve (3) and is passed through by the connecting bolt (20).

7. The steel-concrete composite beam bridge deck concrete bracket according to claim 6, characterized in that: A second insert tube (22) is installed on the top of the positioning plug rod (4), and a second connecting bolt (23) passes through the two side walls of the second insert tube (22). An insert block (24) inserted into the second insert tube (22) is installed on the lower side of the bracket plate (2), and the insert block (24) is provided with a threaded hole (25) for the second connecting bolt (23) to pass through.

8. The steel-concrete composite beam bridge deck concrete bracket according to claim 7, characterized in that: The inner wall size of the first insert tube (19) is the same as the inner wall size of the second insert tube (22), and the outer wall size of the insert block (24) is the same as the outer wall size of the positioning insert rod (4).

9. The steel-concrete composite beam bridge deck concrete bracket according to claim 1, characterized in that: A control switch (15) is installed on one side of the I-shaped plate (5), and the control switch (15) is connected to multiple groups of hydraulic telescopic rods (7) through wires, and the multiple groups of hydraulic telescopic rods (7) are connected to the same group of switches.

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