Large cantilever bent cap bottom die sliding device

Abstract

The utility model discloses a large cantilever bent cap bottom die sliding device. The large cantilever bent cap bottom die sliding device comprises a bent cap body, a bent cap bottom die, a pulley and a suspension assembly. The cover beam body is formed above the cover beam bottom die in a pouring mode. A sliding rail is integrally poured above the capping beam main body; the pulley can slide on the slide rail; the bent cap bottom die comprises a plurality of split bottom die units; the suspension assembly is provided with a suspension rod and a lifting driving piece, and the lifting driving piece can suspend the bottom die unit through the suspension rod. By the adoption of the mode that the sliding rail, the tackle and the suspension assembly are embedded in the bent cap, the bottom die unit can be suspended and slid to a closed construction area to be disassembled, the construction step that hoisting operation is directly carried out above a traffic lane is avoided, the difficulty and occupied space of disassembling the large cantilever bent cap bottom die can be reduced, and the construction efficiency is improved. And the influence on the normal passing of social vehicles due to interference is prevented, so that the safety risk level is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a large-cantilever bent cap bottom form sliding device. Background Art

[0002] In urban road construction, in order to save land or due to site restrictions, a three-dimensional traffic design with planes collinear is often adopted. The upper layer is a large-cantilever viaduct and the lower layer is an urban arterial road. The piers of the large-cantilever viaduct are arranged at the median strip of the urban arterial road. During construction, it is required to construct while keeping the road open to traffic. Generally, one or two lanes need to be occupied, resulting in a very narrow construction site and limited clearance. The space becomes more limited after the bent cap is poured, and the removal of the bottom form of such a large-cantilever bent cap is more difficult to carry out and extremely dangerous.

[0003] For the removal construction of the bottom form of the cantilever part of the large-cantilever bent cap under the condition of planes collinear, the integral or sectional hoisting construction is generally adopted. In the integral method, the bottom form of the cantilever part of the bent cap is made into a whole, and then it is hoisted and removed at one time by a truck crane or a crawler crane; in the sectional hoisting method, the bottom form of the cantilever part of the bent cap is divided into several parts, and then the crane is used for cooperation in removal.

[0004] Both the integral or sectional hoisting requires sufficient hoisting space and no people or vehicles are allowed to stand or pass under the boom and the hoisted object, which is difficult to adopt under the condition of planes collinear. This greatly increases the disassembly difficulty and occupied space of the bottom form of the large-cantilever bent cap. Therefore, it is necessary to design a bent cap bottom form sliding device that is easy to disassemble and assemble and occupies a small construction area. Content of the Utility Model

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a large-cantilever bent cap bottom form sliding device.

[0006] A technical solution adopted by an embodiment of the utility model to solve its technical problems is: a large-cantilever bent cap bottom form sliding device, including: a bent cap main body, a bent cap bottom form, a pulley and a suspension assembly;

[0007] The bent cap main body is cast above the bent cap bottom form; a slide rail is integrally cast above the bent cap main body; the pulley can slide on the slide rail; the bent cap bottom form includes a plurality of separately arranged bottom form units; the suspension assembly is provided with a suspension rod and a lifting driving member, and the lifting driving member can suspend the bottom form unit through the suspension rod.

[0008] Optionally, at least two slide rails are arranged at intervals along the extending direction of the beam arm of the bent cap main body.

[0009] Optionally, the pulley is arranged in a centrosymmetric structure, and both ends protrude laterally along the bent cap main body; the suspension rod is arranged at the end of both ends of the pulley protruding outside the bent cap main body.

[0010] Optionally, the pulley is arranged in a rectangular structure; there are four suspension rods, which are respectively arranged at the four top corners of the rectangular pulley.

[0011] Optionally, two pulleys are provided.

[0012] The beneficial effects of the present utility model are as follows: When pouring the main body of the capping beam, fixed sliding rails are arranged by means of embedded steel plates and steel rails, etc., and lifting driving components such as electric hoists are arranged on the pulley for suspension; after the pouring and construction of the main body of the capping beam are completed and the bottom formwork of the capping beam needs to be disassembled and assembled, by means of the sliding rail and the suspension assembly, after the suspension rod is connected to the bottom formwork unit, the bottom formwork unit can be released by dropping, and then the bottom formwork unit can be detached from the assembled beam. Subsequently, the pulley walks towards both ends of the capping beam main body cantilever by gantry crane, walks to the designated enclosed construction area and then disassembles the bottom formwork unit; then the pulley resets and suspends another bottom formwork unit again. The present utility model adopts the method of embedding sliding rails, pulleys and suspension assemblies in the capping beam, and can suspend and slide the bottom formwork unit to the enclosed construction area for disassembly work. By adopting the method of first sliding to the outer enclosed area and then hoisting, this method avoids the construction steps of directly hoisting above the traffic lane, can reduce the difficulty and occupied space of demolishing the bottom formwork of the large cantilever capping beam, prevent interference with social vehicles and affect their normal passage, thereby reducing the safety risk level.

[0013] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following specifically gives preferred embodiments and detailed descriptions are made in conjunction with the accompanying drawings as follows. Description of the Drawings

[0014] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, in which:

[0015] Figure 1 is a top view structure diagram of the large cantilever capping beam bottom formwork sliding device of the present utility model;

[0016] Figure 2 is Figure 1 a cross-sectional view of the large cantilever capping beam bottom formwork sliding device in

[0017] Main Component Symbol Explanation:

[0018] 10. Capping beam main body; 11. Sliding rail; 20. Capping beam bottom formwork; 30. Pulley; 40. Suspension assembly; 41. Suspension rod; 42. Lifting driving component. Detailed Embodiments

[0019] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The function of the accompanying drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model. However, it should not be construed as a limitation on the protection scope of the present utility model.

[0020] In the description of the present utility model, the meaning of "a plurality" is more than two. Understandings such as "greater than", "less than", and "exceeding" do not include the original number, and understandings such as "above", "below", and "within" include the original number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0021] In the description of the present utility model, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by "up", "down", "front", "back", "left", "right", etc., is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the present utility model.

[0022] In the present utility model, unless otherwise clearly defined, words such as "set", "installed", and "connected" should be understood in a broad sense. For example, it can be directly connected, or indirectly connected through an intermediate medium; it can be fixedly connected, or detachably connected, or integrally formed; it can be mechanically connected; it can be the communication inside two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.

[0023] Embodiment

[0024] Referring to Figure 1 and Figure 2 , a sliding device for the bottom formwork 20 of a large cantilever capping beam proposed by the present utility model includes: a capping beam main body 10, a capping beam bottom formwork 20, a pulley 30, and a suspension assembly 40;

[0025] The capping beam main body 10 is cast above the capping beam bottom formwork 20; a slide rail 11 is integrally cast above the capping beam main body 10; the pulley 30 can slide on the slide rail 11; the capping beam bottom formwork 20 includes a number of separately arranged bottom formwork units; the suspension assembly 40 is provided with a suspension rod 41 and a lifting driving member 42, and the lifting driving member 42 can suspend the bottom formwork unit through the suspension rod 41.

[0026] In the present utility model, during the casting of the capping beam main body 10, fixed slide rails 11 are arranged by means of embedded steel plates and steel rails, etc., and a lifting driving member 42 such as an electric hoist is arranged on the pulley block 30 for suspension; after the casting and construction of the capping beam main body 10 are completed, when it is necessary to disassemble and assemble the bottom formwork 20 of the capping beam, by means of the slide rails 11 and the suspension assembly 40, after the suspension rod 41 is connected to the bottom formwork unit, the bottom formwork unit is released by dropping, and then the bottom formwork unit can be detached from the assembled beam. Subsequently, the pulley block 30 travels by overhead crane towards both ends of the capping beam main body 10 in cantilever, walks to the designated enclosed construction area and then disassembles the bottom formwork unit; subsequently, the pulley block 30 resets and suspends another bottom formwork unit again. In the present utility model, by means of the embedded slide rails 11, pulley blocks 30 and suspension assemblies 40 of the capping beam, the bottom formwork unit can be suspended and slid to the enclosed construction area for disassembly work. By adopting the method of first sliding to the outer enclosed area and then hoisting, this method avoids the construction steps of directly hoisting above the traffic lane, can reduce the difficulty and occupied space of removing the bottom formwork 20 of the large cantilever capping beam, prevent interference with social vehicles and affect their normal passage, thereby reducing the safety risk level.

[0027] By adopting the capping beam bottom formwork 20 sliding construction device, the unsafe problem that the hoisting construction position is directly above the traffic lane and the problem of occupying the road for a long time are solved, the hoisting distance is reduced, and it has great economic benefits and is safe and reliable.

[0028] In this embodiment, in order to ensure the stable and reliable sliding of the pulley block 30 above the capping beam main body 10, at least two slide rails 11 are arranged at intervals along the extending direction of the capping beam main body 10 beam arm. Preferably, two slide rails 11 are arranged.

[0029] In this embodiment, the pulley block 30 is arranged in a centrally symmetric structure, and both ends protrude laterally along the capping beam main body 10; the suspension rods 41 are arranged at the ends of both ends of the pulley block 30 protruding from the capping beam main body 10. For example, the pulley block 30 adopts a frame structure such as a circular frame or a rectangular frame.

[0030] Preferably, the pulley block 30 is arranged in a rectangular structure; four suspension rods 41 are arranged, which are respectively arranged at the four top corners of the rectangular pulley block 30. The rectangular pulley block 30 structure can be assembled by welding steel beams, and several reinforcing beams can be conveniently arranged inside the frame.

[0031] In this embodiment, two pulley blocks 30 are arranged. The two pulley blocks 30 can move independently at both ends of the slide rails 11 of the capping beam main body 10 respectively, so as to independently carry out construction in the enclosed construction areas under the two large cantilevers respectively, and improve the construction efficiency.

[0032] The specific construction method of using the bottom formwork sliding device of the present utility model includes the following steps:

[0033] S1. Assemble the bottom formwork 20 of the capping beam, pour the capping beam main body 10 on the bottom formwork 20 of the capping beam, and embed steel plates and slide rails 11 above the capping beam main body 10;

[0034] S2. Install the pulley 30 and the suspension assembly 40 on the slide rail 11;

[0035] S3. Debug the pulley 30 and conduct a trial lift of the suspension assembly 40;

[0036] S4. Loosen the bottom formwork unit of the bottom formwork 20 of the capping beam, the bottom formwork unit detaches from the assembly beam, and the suspension assembly 40 suspends the bottom formwork unit;

[0037] S5. The bottom formwork unit moves along the slide rail 11 with the pulley 30 to the enclosed construction area;

[0038] S6. Hoist and unload the bottom formwork unit in the enclosed construction area through the hoisting device;

[0039] S7. The pulley 30 moves back and repeats steps S4 and S5.

[0040] Certainly, the present utility model is not limited to the above embodiments. Those skilled in the art can make equivalent deformations or substitutions without departing from the spirit of the present utility model, and these equivalent deformations and substitutions are all included within the scope defined by the claims of this application.

Claims

1. A large cantilever cap beam bottom mold sliding device, characterized in that: include: A cap beam body (10), a cap beam bottom mold (20), a pulley (30) and a suspension assembly (40); The cap beam body (10) is cast and formed above the cap beam bottom mold (20); a slide rail (11) is integrally cast above the cap beam body (10); the pulley (30) can slide on the slide rail (11); the cap beam bottom mold (20) includes a plurality of separately arranged bottom mold units; the suspension assembly (40) is provided with a suspension rod (41) and a lifting drive member (42), and the lifting drive member (42) can suspend the bottom mold unit through the suspension rod (41).

2. The large cantilever cap beam bottom mold sliding device according to claim 1 is characterized in that: At least two of the slide rails (11) are arranged at intervals along the extension direction of the beam arm of the cap beam body (10).

3. The large cantilever cap beam bottom mold sliding device according to claim 1 is characterized in that: The pulley (30) is arranged in a centrally symmetrical structure, with both ends protruding laterally from the cap beam body (10); the suspension rod (41) is arranged at the ends of the pulley (30) protruding from the cap beam body (10).

4. The large cantilever cap beam bottom mold sliding device according to claim 3 is characterized in that: The pulley (30) is arranged in a rectangular structure; four suspension rods (41) are arranged respectively at the four top corners of the rectangular pulley (30).

5. The large cantilever cap beam bottom mold sliding device according to claim 1 is characterized in that: Two pulleys (30) are provided.

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