Steel-concrete composite beam bridge deck slab hoisting and positioning device

Abstract

The utility model relates to a steel-concrete composite beam bridge deck slab hoisting positioning device which comprises a positioning steel plate frame, a positioning seat and a magnetic attraction device, a cone is fixed at the bottom of one side of the positioning steel plate frame, a clamping part fixed with a bridge deck slab is arranged on the other side of the positioning steel plate frame, one side of the positioning seat is connected with the magnetic attraction device, and the magnetic attraction device is connected with the cone. The magnetic attraction device is connected with the steel beam in an attraction mode, a round pipe is arranged on the top of the other side of the positioning base, and the inner diameter of the round pipe is matched with the maximum outer diameter of the cone. The detachable punching-free prefabricated bridge deck slab hoisting and positioning device is provided for solving the positioning problem of hoisting construction of a prefabricated bridge deck slab of a superposed beam, and convenience is provided for hoisting construction of the prefabricated bridge deck slab. The cone falls into the steel pipe in the hoisting process, position adjustment of the prefabricated bridge deck is completed under hard contact, accurate positioning is conducted in the hoisting process on the construction site, rapid hoisting can be achieved, and the hoisting accuracy of the prefabricated bridge deck is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a steel-concrete composite beam bridge deck hoisting and positioning device. Background Art

[0002] Steel-concrete composite beams are mainly composed of steel beams and bridge decks. Usually, the bridge decks are prefabricated in the factory. The prefabricated bridge decks are hoisted onto the steel beams by cranes at the construction site, and then wet joint construction is performed to form a composite beam with the steel beams. The traditional hoisting scheme usually involves lofting on the steel beams, marking the landing points on the steel beams, and then hoisting the bridge decks. During the hoisting process, the prefabricated bridge decks are aligned with the marks on the steel beams by human eyes. This type of hoisting positioning method often has large errors. Utility Model Content

[0003] The purpose of the utility model is to provide a steel-concrete composite beam bridge deck hoisting and positioning device. Aiming at the positioning problem of the hoisting construction of prefabricated bridge decks with composite beams, a detachable and punch-free prefabricated bridge deck hoisting and positioning device is provided to facilitate the hoisting construction of prefabricated bridge decks and solve the problems encountered in the above-mentioned background technology.

[0004] To achieve the above purpose, the technical solution of the utility model is as follows:

[0005] A steel-concrete composite beam bridge deck hoisting and positioning device comprises a positioning steel plate frame, a positioning seat and a magnetic device, wherein a cone is fixed to the bottom of one side of the positioning steel plate frame, and a clamping portion for fixing the bridge deck is provided on the other side of the positioning steel plate frame, one side of the positioning seat is connected to the magnetic device, and the magnetic device is adsorbed and connected to the steel beam, and a round tube is provided on the top of the other side of the positioning seat, and the inner diameter of the round tube matches the maximum outer diameter of the cone.

[0006] In the above solution, a clearance opening is provided at the bottom of the positioning steel plate frame, and the cone is installed at the bottom of the clearance opening. The height of the clearance opening is not less than the total height of the positioning seat and the round tube.

[0007] In the above scheme, the clamping part is a right-angled groove structure, and positioning holes are opened on the two side plates of the clamping part. The positioning holes are evenly arranged at the outer ends of the two side plates of the clamping part, and the positioning holes are an open U-shaped structure.

[0008] In the above scheme, the plate body of the positioning steel plate frame is provided with supporting ribs, which can be either transverse ribs or longitudinal ribs. The transverse ribs are used to fix the connection part, and the longitudinal ribs are used to fix the cone.

[0009] In the above scheme, a clamping block is provided on one side of the magnetic attraction device, a base is installed on the top of the positioning seat, and a clamping groove matching the clamping block is provided on the outer side of the base; wherein a threaded hole fixed to the positioning seat is opened inside the base, and the round tube is installed on the top side of the base and away from the threaded hole.

[0010] Based on this technical solution, in one embodiment, the magnetic attraction device is fixed to the positioning seat through the cooperation of the clamping block and the clamping slot.

[0011] Based on this technical solution, in another embodiment, the magnetic attraction device is slidably connected to the positioning seat in the vertical direction through the cooperation of the clamping block and the clamping slot.

[0012] Compared with the prior art, the utility model has the following beneficial effects: in view of the positioning problem of the hoisting construction of the composite beam prefabricated bridge deck, a detachable punch-free prefabricated bridge deck hoisting positioning device is provided, which facilitates the hoisting construction of the prefabricated bridge deck. During the hoisting process, the cone falls into the steel pipe, and the position adjustment of the prefabricated bridge deck is completed under hard contact. It is precisely positioned during the hoisting process at the construction site, which can realize rapid hoisting and improve the accuracy of the hoisting of the prefabricated bridge deck. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The disclosure of the present invention is described with reference to the accompanying drawings. It should be understood that the drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the accompanying drawings, the same reference numerals are used to refer to the same components. Among them:

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the structure of the utility model from another perspective;

[0016] Figure 3 It is a structural schematic diagram of the positioning steel plate frame and the bridge deck when being fixed in the utility model;

[0017] Figure 4 It is a structural schematic diagram from another perspective when the positioning steel plate frame and the bridge deck are fixed in the utility model.

[0018] Numbers in the figure: 1-positioning steel plate frame; 11-cone; 12-avoidance; 13-clamping part; 14-positioning hole; 15-support rib; 2-positioning seat; 21-round tube; 22-base; 23-slot; 24-threaded hole; 3-magnetic suction device; 31-block. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects of the utility model easier to understand, the utility model is now further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the relevant components of the utility model.

[0020] According to the technical solution of the utility model, without changing the essential spirit of the utility model, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific implementation modes and drawings are only exemplary descriptions of the technical solution of the utility model, and should not be regarded as the entirety of the utility model or as a limitation or restriction to the technical solution of the utility model.

[0021] The technical solution of the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0022] Embodiment 1, as Figure 1 and 2 As shown, a steel-concrete composite beam bridge deck hoisting and positioning device includes a positioning steel plate frame 1, a positioning seat 2 and a magnetic suction device 3. A cone 11 is fixed to the bottom of one side of the positioning steel plate frame 1. The cone 11 is a frustum-shaped structure. The cone 11 can also be designed to be a solid body with a cylindrical top and a conical structure at the bottom. The positioning steel plate frame 1 is made by laser cutting of steel plates and then welding, and the cone 11 can be a hard and wear-resistant plastic entity or directly made of a steel plate of a corresponding structure. If a plastic entity is used, an installation groove needs to be set for fixation. If a steel structure is used, it is directly welded and fixed.

[0023] The other side of the positioning steel plate frame 1 is provided with a clamping part 13 for fixing with the bridge deck. The clamping part 13 is a right-angled groove structure. Positioning holes 14 are provided on the plates on both sides of the clamping part 13. The positioning holes 14 are mainly used for positioning with the positioning and installation holes of the bridge deck. Fixing and positioning are completed by mechanically connecting with the steel bars on the prefabricated bridge deck. As a preferred solution, the positioning holes 14 are evenly arranged on the outer ends of the plates on both sides of the clamping part 13. The positioning holes 14 are an open U-shaped structure, which is used to directly clamp on the steel bars protruding from the positioning and installation holes of the bridge deck. Its installation structure is as shown in FIG. Figure 3 and Figure 4 shown.

[0024] One side of the positioning seat 2 is connected to the magnetic device 3, and the connection method can be a screw-fixed type or a movable detachable connection. The magnetic device 3 is adsorbed and connected to the steel beam, mainly adsorbed on the top side of the steel beam. The position is fixed with the steel beam by its own magnetic force, and the size of the magnetic attraction can be adjusted by a switch. A round tube 21 is welded to the top of the other side of the positioning seat 2. The inner diameter of the round tube 21 matches the maximum outer diameter of the cone 11. When the center line of the round tube 21 coincides with the center line of the cone 11, the two are accurately positioned.

[0025] Embodiment 2, based on the solution of embodiment 1, a steel-concrete composite beam bridge deck hoisting and positioning device, the bottom of the positioning steel plate frame 1 is provided with an escape opening 12, the escape opening 12 is mainly to provide an escape space for the cooperation of the round tube 21 and the cone 11, so that the two cooperate to accurately fit the position of the bridge deck and the steel beam. The cone 11 is installed at the bottom of the escape opening 12, and the height of the escape opening 12 is not less than the total height of the positioning seat 2 and the round tube 21, so the height of the escape opening 12 is greater than the total height of the positioning seat 2 and the round tube 21, providing space for the assembly of the steel beam and the bridge deck.

[0026] As a preferred solution, support ribs 15 are provided on the plate body of the positioning steel plate frame 1. The support ribs 15 can be either transverse ribs or longitudinal ribs. The transverse ribs are used to fix the connecting part 13, and the longitudinal ribs fix the cone 11, thereby providing firm support for the main body of the positioning steel plate frame 1.

[0027] Embodiment 3, based on the solution of embodiment 1 or 2, a steel-concrete composite beam bridge deck hoisting positioning device, a clamping block 31 is fixed on one side of the magnetic suction device 3, and the clamping block 31 is provided with a protruding clamping head. A base 22 is installed on the top of the positioning seat 2, and a clamping groove 23 matching with the clamping block 31 is provided on the outer side of the base 22, and the clamping groove 23 is mainly matched with the clamping head.

[0028] The base 22 has a threaded hole 24 inside which is fixed to the positioning seat 2. The threaded hole 24 is fixed by a matching screw. The round tube 21 is installed on one side of the top of the base 22 and away from the threaded hole 24 to avoid interference.

[0029] Based on this technical solution, in one embodiment, the magnetic device 3 is fixed to the positioning seat 2 by the cooperation of the clamping block 31 and the clamping slot 23, so that the two form a mutually fixed structure. The clamping head of the clamping block 31 can be a trapezoidal structure, and the structure of the clamping slot 23 can be a groove-type trapezoidal structure, and a common limiting structure, such as a limiting block or a step-shaped notch, is provided in the groove to limit its movement.

[0030] Based on this technical solution, in another embodiment, the magnetic attraction device 3 is slidably connected to the positioning seat 2 in the vertical direction through the cooperation of the block 31 and the slot 23, and the position can be adjusted by sliding against each other, wherein the positioning seat 2 plays a limiting role to prevent the block 31 from continuing to slide down.

[0031] To sum up, during implementation, before the prefabricated bridge deck is lifted, the positioning steel plate frame 1 is mechanically connected to the steel bars of the prefabricated bridge deck to fix the relative position of the cone 11 and the prefabricated bridge deck. According to the positioning coordinates obtained by the steel beam lofting, the magnetic device 3 and the positioning seat 2 are placed at the positioning point and the magnetic attraction is turned on to ensure that the magnetic device 3 does not move under the action of external force. After taking the above measures, the lifting operation of the prefabricated bridge deck is started. During the lifting process, the bottom end of the cone 11 is ensured to be on the same vertical line as the inner hole of the steel pipe 21. After the bottom end of the cone 11 is inserted into the steel pipe 21, the lifting speed is controlled to slowly lift, and the lifting position of the prefabricated bridge deck is automatically calibrated under the hard contact between the cone 11 and the steel pipe 21. After the lifting is completed, remove the mechanical connection on the steel bar, remove the positioning steel plate frame 1, turn off the switch of the magnetic device 3, and move the positioning seat 2 out along the longitudinal direction of the steel beam.

[0032] The utility model aims at the positioning problem of the composite beam prefabricated bridge deck hoisting construction, and provides a detachable punch-free prefabricated bridge deck hoisting positioning device, which provides convenience for the prefabricated bridge deck hoisting construction. During the hoisting process, the cone 11 falls into the steel pipe 21, and the position adjustment of the prefabricated bridge deck is completed under hard contact. It is precisely positioned during the hoisting process at the construction site, which can realize rapid hoisting and improve the accuracy of the prefabricated bridge deck hoisting.

[0033] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A steel-concrete composite beam bridge deck hoisting and positioning device, characterized in that: The invention comprises a positioning steel plate frame (1), a positioning seat (2) and a magnetic attraction device (3); a cone (11) is fixed at the bottom of one side of the positioning steel plate frame (1); a clamping portion (13) for fixing the bridge deck is provided on the other side of the positioning steel plate frame (1); one side of the positioning seat (2) is connected to the magnetic attraction device (3); the magnetic attraction device (3) is adsorbed and connected to the steel beam; a round tube (21) is provided at the top of the other side of the positioning seat (2); the inner diameter of the round tube (21) matches the maximum outer diameter of the cone (11).

2. The steel-concrete composite beam bridge deck hoisting and positioning device according to claim 1 is characterized in that: The bottom of the positioning steel plate frame (1) is provided with an escape opening (12), and the cone (11) is installed at the bottom of the escape opening (12).

3. The steel-concrete composite beam bridge deck hoisting and positioning device according to claim 2 is characterized in that: The height of the avoidance opening (12) is not less than the total height of the positioning seat (2) and the circular tube (21).

4. The steel-concrete composite beam bridge deck hoisting and positioning device according to claim 1, characterized in that: The clamping portion (13) is a right-angled groove structure, and positioning holes (14) are provided on two side plates of the clamping portion (13).

5. The steel-concrete composite beam bridge deck hoisting and positioning device according to claim 4 is characterized in that: The positioning holes (14) are evenly arranged at the outer ends of the two side plates of the clamping portion (13), and the positioning holes (14) are open U-shaped structures.

6. The steel-concrete composite beam bridge deck hoisting and positioning device according to claim 1, characterized in that: Support ribs (15) are provided on the plate body of the positioning steel plate frame (1).

7. The steel-concrete composite beam bridge deck hoisting and positioning device according to claim 1, characterized in that: A clamping block (31) is provided on one side of the magnetic attraction device (3); a base (22) is installed on the top of the positioning seat (2); and a clamping groove (23) matching with the clamping block (31) is provided on the outer side of the base (22).

8. The steel-concrete composite beam bridge deck hoisting and positioning device according to claim 7, characterized in that: The magnetic attraction device (3) is fixedly connected to the positioning seat (2) through the cooperation of the clamping block (31) and the clamping groove (23).

9. The steel-concrete composite beam bridge deck hoisting and positioning device according to claim 7, characterized in that: The magnetic attraction device (3) is slidably connected to the positioning seat (2) in the vertical direction through the cooperation of the clamping block (31) and the clamping groove (23).

10. The steel-concrete composite beam bridge deck hoisting and positioning device according to claim 7, characterized in that: The base (22) is provided with a threaded hole (24) fixed to the positioning seat (2), and the round tube (21) is installed on one side of the top of the base (22) and away from the threaded hole (24).

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