CN117328371A - A device and construction method for external construction of box girder chambers - Google Patents

Abstract

The invention relates to the technical field, in particular to a device and a construction method for outside construction of a box girder box, which solve the problems that most of existing tools for outside construction of the box girder in the prior art are relatively laggard, are constructed by hoisting people by a crane, have high potential safety hazard, cannot effectively guarantee construction quality and have lower working efficiency. A device and a construction method for the outside construction of a box girder box chamber comprise a support bracket and a girder body, wherein hanging pieces are arranged at four corners of the top of the support bracket, and a fixing piece is arranged at the top of the support bracket. The invention is realized by combining the support bracket, the suspension part, the fixing part and the suspension part, improves the working environment of operators, ensures the personal safety of constructors, ensures the construction quality when the construction device is used for the external trimming and decorating of the beam body and the installation work of the drain pipe, has reasonable structure, convenient operation, greatly improves the construction efficiency, effectively saves the construction cost and has better economic and social benefits.

Description

A device and construction method for external construction of box girder chambers

Technical field

The invention relates to the technical field of bridges, and in particular to a device and a construction method for external construction of box girder chambers.

Background technique

With the vigorous development of social economy, the demand for the construction of transportation facilities is increasing. Bridges are indispensable in the construction of highways and railways, accounting for a large proportion. The tooling required for bridge construction has also been vigorously developed;

At present, the tooling for the external construction of box girders is relatively backward. Most of them use cranes for construction, which poses great safety risks, the construction quality cannot be effectively guaranteed, and the work efficiency is also low. Therefore, we have proposed tooling that can be used for the external construction of box girders. A device and construction method for external construction of box girder chambers, which are used for external renovation, decoration and drainage pipe installation of beam bodies to solve the above problems.

Contents of the invention

The purpose of the present invention is to provide a device and a construction method for the external construction of box girder chambers, which solves the problem that the current tooling for the external construction of box girder in the prior art is relatively backward, and most of them use cranes for hoisting construction, which poses great safety risks. Construction quality cannot be effectively guaranteed and work efficiency is low.

In order to achieve the above objects, the present invention adopts the following technical solutions:

A device and construction method for external construction of box girder chambers, including a supporting bracket and a beam body. Suspension parts are provided at the top four corners of the supporting bracket. The top of the supporting bracket is provided with a The fixing part includes two fixed brackets that are symmetrically arranged and detachably connected to the top of the beam body. The hanging part includes a sliding rod that is arranged vertically and has one end passing through the supporting bracket through a sliding sleeve. The sliding rod is Both ends are connected to limit plates, and the top end of the sliding rod is provided with a lifting ring connected to the limit plates.

Preferably, the supporting bracket includes two symmetrically arranged supporting rods and several cross beams connected between the two supporting rods.

Preferably, the sliding rod, limiting plate and hanging ring are all made of metal.

Preferably, the fixing member includes two symmetrically arranged fixing rods. The bottoms of the two fixing rods are detachably connected with transverse plates fixedly connected to the top of the beam body. The two fixing rods are arranged symmetrically and horizontally. There are two lifting rods, the two ends of the lifting rod are respectively connected to the bottoms of the two fixed rods, and the top of the lifting rod is connected with several connecting rings.

Preferably, a fixing groove is provided at the center of the top of the fixing rod, and a fixing screw with one end passing through the fixing rod through a screw sleeve is vertically provided inside the fixing groove. One end of the fixing screw is threadedly connected to the top of the horizontal plate.

Preferably, docking blocks are connected to both sides of the top of the horizontal plate, a docking slot is provided on one side of the docking block, and plug blocks that match the docking slot are connected to both sides of the bottom of the fixed rod. , both sides of the bottom of the fixed rod are provided with plug-in slots that are adapted to the lifting rod, and both ends of the lifting rod are connected with limiting blocks.

A construction method using the external construction of the box girder box chamber according to claim 1, including the following steps:

① Set the supporting bracket at the bottom of the beam body and fix it with fine-rolled rebar, then hoist the fixed bracket on the upper part of the pad beam and temporarily fix it with fine-rolled rebar;

② Hoist the roof fixed bracket on the upper part of the walking beam and fix it with precision-rolled rebar. Adjust the position and spacing of the two roof fixed brackets and connect them with a connecting system;

③ Hoisting finely rolled rebar and reverse chain wire rope;

④ Lift the supporting bracket through the suspension parts, then lock it with fine-rolled rebar, connect the inverted steel wire rope, and then lift the longitudinal distribution beam;

⑤Lay steel plates on the longitudinal distribution beams and set up scaffolding;

⑥After the external construction of the beam chamber of this section is completed, remove the anchors of the fixed bracket, use the inverted steel wire rope to pull the supporting bracket, and move the entire device forward synchronously to the construction position of the lower beam body, and then connect the fixed bracket and the beam again The top plate of the body is anchored, and the outdoor exterior construction of the next segment of the beam body is carried out.

The present invention at least has the following beneficial effects:

It is realized through the combination of supporting brackets, suspension parts, fixing parts and suspension parts, which improves the working environment of the operators and ensures the personal safety of the construction workers. This construction device is used for renovation, decoration and drainage pipe installation work outside the beam body. At this time, the construction quality is guaranteed. The device has a reasonable structure, is easy to operate, greatly improves the construction efficiency, effectively saves construction costs, and has good economic and social benefits.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present invention, which are of great significance to this field. Ordinary technicians can also obtain other drawings based on these drawings without exerting creative work.

Figure 1 is a schematic structural diagram of the present invention;

Figure 2 is a schematic diagram of the beam structure of the present invention;

Figure 3 is a schematic structural diagram of the fixed rod of the present invention.

In the picture: 1. Supporting bracket; 2. Beam body; 3. Fixed bracket; 4. Suspension parts; 5. Limiting plate; 6. Sliding rod; 7. Lifting ring; 8. Cross beam; 9. Butt block; 10. Horizontal plate; 11. Plug-in block; 12. Fixed rod; 13. Plug-in slot; 14. Fixed screw; 15. Connecting ring; 16. Limiting block; 17. Lifting rod.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not intended to limit the present invention.

Embodiment 1

Referring to Figures 1-3, a device and construction method for external construction of a box girder chamber include a supporting bracket 1 and a beam body 2. Suspension pieces 4 are provided at the top four corners of the supporting bracket 1. The top of the bracket 1 is provided with a fixing piece. The fixing piece includes two symmetrically arranged fixing brackets 3 that are detachably connected to the top of the beam body 2. The hanging piece 4 includes a vertical piece with one end passing through the supporting bracket 1 through a sliding sleeve. The sliding rod 6 has both ends connected to the limiting plate 5. The top end of the sliding rod 6 is provided with a lifting ring 7 connected to the limiting plate 5.

According to the above embodiments, it can be seen that through the combination of the supporting bracket 1, the hanging piece 4, the fixing piece, and the hanging piece 4, the working environment of the operator is improved, and the personal safety of the construction personnel is ensured. The use of this construction device on the beam body During external renovation, decoration and drainage pipe installation work, the construction quality is guaranteed. This device has a reasonable structure and is easy to operate. The construction efficiency is greatly improved, the construction cost is effectively saved, and it has good economic and social benefits.

Embodiment 2

Referring to Figure 1-3, the supporting bracket 1 includes two symmetrically arranged supporting rods and several cross beams 8 connected between the two supporting rods. The sliding rod 6, the limiting plate 5 and the hanging ring 7 are all made of Made of metal material, the fixing piece includes two symmetrically arranged fixing rods 12. The bottoms of the two fixing rods 12 are detachably connected to a horizontal plate 10 fixedly connected to the top of the beam body 2. The two fixing rods 12 are symmetrical. And two lifting rods 17 are arranged horizontally. The two ends of the lifting rod 17 are respectively connected to the bottoms of the two fixed rods 12. The top of the lifting rod 17 is connected with several connecting rings 15. The top center of the fixed rod 12 is provided with a fixed The inside of the fixed groove is vertically provided with a fixing screw 14 with one end passing through the fixing rod 12 through a threaded sleeve. One end of the fixing screw 14 is threadedly connected to the top of the horizontal plate 10, and the top two sides of the horizontal plate 10 are connected with butt blocks 9 , one side of the docking block 9 is provided with a docking slot, and both sides of the bottom of the fixed rod 12 are connected with plug blocks 11 that are suitable for the docking slot. Both sides of the bottom of the fixed rod 12 are provided with plug blocks 11 that are suitable for the lifting rods 17 Equipped with a plug-in slot 13, both ends of the lifting rod 17 are connected to limit blocks 16.

Embodiment 3

The construction method of external construction of box girder box chamber includes the following steps:

① Set the supporting bracket 1 at the bottom of the beam body 2 and fix it with fine-rolled rebar, then hoist the fixed bracket 3 on the upper part of the pad beam and temporarily fix it with fine-rolled rebar;

② Hoist the top fixed bracket 3 on the upper part of the walking beam and fix it with precision-rolled rebar. Adjust the position and spacing of the two top fixed brackets 3 and connect them using a connecting system;

③ Hoisting finely rolled rebar and reverse chain wire rope;

④ Lift the supporting bracket 1 through the suspension part 4, then lock it with precision-rolled rebar, connect the inverted steel wire rope, and then lift the longitudinal distribution beam;

⑤Lay steel plates on the longitudinal distribution beams and set up scaffolding;

⑥After the external construction of the beam body 2 in this section is completed, remove the anchors of the fixed bracket 3, use the inverted wire rope to pull the support bracket 1, so that the entire device can be moved forward synchronously to the construction position of the lower beam body 2, and then move it again. The fixed bracket 3 is anchored to the top plate of the beam body 2, and the next section of the beam body 2 is installed outdoors.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited to the above embodiments. What is described in the above embodiments and descriptions is only the principle of the present invention. The present invention may also have various modifications without departing from the spirit and scope of the present invention. changes and improvements that fall within the scope of the claimed invention. The scope of protection required for the present invention is defined by the appended claims and their equivalents.

Claims (7)

1. A device for outside construction of a beam box, comprising:

support bracket (1) and roof beam body (2), four corners in top of support bracket (1) all are provided with suspension member (4), the top of support bracket (1) is provided with the mounting, and the mounting is including two symmetry settings and with roof beam body (2) top can dismantle fixed bolster (3) of being connected, suspension member (4) are including vertical setting and one end run through slide bar (6) of support bracket (1) through the sliding sleeve, the both ends of slide bar (6) all are connected with limiting plate (5), the top portion of slide bar (6) is provided with rings (7) of being connected with limiting plate (5).

2. Device for external construction of a girder and a box according to claim 1, characterized in that the support bracket (1) comprises two symmetrically arranged support bars and several cross beams (8) connected between the two support bars.

3. The device for external construction of a box girder and box according to claim 2, wherein the sliding rod (6), the limiting plate (5) and the hanging ring (7) are all made of metal materials.

4. The device for outside construction of a box girder and a box according to claim 1, wherein the fixing piece comprises two symmetrically arranged fixing rods (12), the bottoms of the two fixing rods (12) are detachably connected with a transverse plate (10) fixedly connected with the top of the girder body (2), two lifting rods (17) are symmetrically and horizontally arranged between the two fixing rods (12), two ends of each lifting rod (17) are respectively connected with the bottoms of the two fixing rods (12), and the top of each lifting rod (17) is connected with a plurality of connecting rings (15).

5. The device for outside construction of a box girder and box according to claim 4, wherein a fixing groove is formed in the center of the top of the fixing rod (12), a fixing screw (14) with one end penetrating through the fixing rod (12) through a screw sleeve is vertically arranged in the fixing groove, and one end of the fixing screw (14) is in threaded connection with the top of the transverse plate (10).

6. The device for outside construction of a box girder and a box according to claim 5, characterized in that, the top both sides of the cross plate (10) are all connected with the butt joint piece (9), the butt joint groove has been seted up to one side of butt joint piece (9), the bottom both sides of dead lever (12) all are connected with grafting piece (11) with butt joint groove looks adaptation, grafting groove (13) with hoist and mount pole (17) looks adaptation have all been seted up to the bottom both sides of dead lever (12), the both ends of hoist and mount pole (17) all are connected with stopper (16).

7. A construction method for external construction of a box girder box chamber according to claim 1, comprising the steps of:

(1) the support bracket (1) is arranged at the bottom of the beam body (2), the support bracket is fixed by using finish rolling deformed steel bars, then the fixed bracket (3) is hoisted at the upper part of the bolster, and the support bracket is temporarily fixed by using the finish rolling deformed steel bars;

(2) the top fixing support (3) is hung on the upper part of the walking beam and fixed by finish rolling deformed steel bars, the positions and the intervals of the two top fixing supports (3) are adjusted, and the two top fixing supports are connected by adopting a connecting system;

(3) hoisting finish rolling deformed steel bar and chain-pouring steel wire rope;

(4) hoisting the support bracket (1) through the suspension piece (4), locking the support bracket by using finish rolling deformed steel bars, connecting a chain block steel wire rope, and hoisting the longitudinal distribution beam;

(5) paving steel plates on the longitudinal distribution beams, and erecting a scaffold;

(6) after the outdoor construction of the section beam body (2) is completed, the anchoring piece of the fixed support (3) is removed, the support bracket (1) is pulled by using the chain-pouring steel wire rope, the whole device synchronously moves forward to the construction position of the lower section beam body (2), the fixed support (3) is anchored with the top plate of the beam body (2) again, and the outdoor construction of the next section beam body (2) is carried out.