Novel assembling method for prefabricated box girder steel bars

Abstract

According to the novel assembling method for the prefabricated box girder reinforcing steel bars, except for longitudinal bars at the corner intersection positions, the longitudinal bars and stirrups of the other reinforcing steel bars of the prefabricated box girder are bound into a bottom plate reinforcing steel bar framework, a web reinforcing steel bar framework and a top plate reinforcing steel bar framework in a factory; a bottom plate steel reinforcement framework, a web steel reinforcement framework and a top plate steel reinforcement framework are sequentially arranged on an assembly jig frame, after assembly and alignment, longitudinal bars at the corner intersection positions are inserted in an overall penetrating mode, then the longitudinal bars at the corner intersection positions are bound, and assembly machining of prefabricated box girder steel bars is completed. According to the method, the prefabricated box girder steel bars can be mechanically and rapidly assembled, construction sites are reduced, materials are saved, the work efficiency is improved, and rapid and accurate machining of the prefabricated box girder steel bars is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of prefabricated box girder reinforcement, and in particular to a novel assembly method of prefabricated box girder reinforcement. Background Art

[0002] As a common bridge structure, box girders are widely used in various bridge projects. Prefabricated box girders refer to bridge structures that are processed and manufactured in factories or prefabrication yards and then transported to the construction site for installation. Prefabricated box girders have the following advantages:

[0003] 1. Controllable quality: Standardized production in factories or prefabrication yards can effectively control the quality and precision of components and improve the overall quality of the bridge;

[0004] 2. High construction efficiency: The construction period of prefabricated box beams is short and is not restricted by factors such as on-site weather and seasons, which can speed up the progress of the project;

[0005] 3. High safety: During the factory production process of prefabricated box girders, advanced welding, anti-corrosion and other processes can be used to improve the durability and safety of the bridge.

[0006] In order to improve the bearing capacity of the box girder and ensure its safety, stirrups need to be installed on the box girder. The function of the stirrups is to evenly distribute the load to each stirrup, thereby reducing the possibility of deformation and cracks in the box girder. At the same time, the stirrups strengthen and stabilize the box girder, enabling it to withstand greater loads.

[0007] The prefabricated box girder reinforcement includes at least four reinforcement skeletons, which include a top plate reinforcement skeleton, two web plate reinforcement skeletons and a bottom plate reinforcement skeleton. Adjacent reinforcement skeletons are connected by strengthening longitudinal reinforcements, that is, the corner intersections between the web plate reinforcement skeleton and the bottom plate reinforcement skeleton, and the corner intersections between the web plate reinforcement skeleton and the top plate reinforcement skeleton are connected by longitudinal reinforcements.

[0008] The traditional method of processing steel bars for prefabricated box girders is to tie the bottom plate steel bar skeleton and the web plate steel bar skeleton on the tire frame, hoist the bottom plate steel bar skeleton and the web plate steel bar skeleton into the mold, and then tie the top plate steel bar skeleton after the core mold is installed. The solution process is as follows:

[0009] ① Tie the bottom plate, web stirrups and longitudinal bars to make the bottom plate reinforcement skeleton and web reinforcement skeleton;

[0010] ② Lift the bottom plate steel frame and the web plate steel frame into the mold;

[0011] ③ Install the side mold 20 and the inner mold 30;

[0012] ④ Tie up the top slab stirrups and longitudinal reinforcement to form the top slab reinforcement skeleton.

[0013] The disadvantages of the above-mentioned traditional prefabricated box beam reinforcement processing method include the following points:

[0014] ① Manually tying the steel bar skeleton on the tire frame, the tying process is difficult for personnel to operate, the manual tying speed is slow, and the efficiency is low;

[0015] ② The tied bottom plate steel frame and top plate steel frame need to be hoisted into the mold again. The hoisting weight is large, and the steel bars are easily damaged during the hoisting process;

[0016] ③ When tying the top plate reinforcement frame, the cross longitudinal reinforcements at the corners need to be inserted manually one by one.

[0017] Traditional prefabricated box girder steel bars have shortcomings in terms of improving efficiency, saving materials, saving land, and saving labor, and there is not much room for improvement.

[0018] In view of the above problems, the present invention provides a new assembly method. Summary of the invention

[0019] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a novel assembly method for prefabricated box girder reinforcement, which can realize the rapid processing of prefabricated box girder reinforcement, can realize the rapid and accurate batch production of prefabricated box girder reinforcement, and achieve the purpose of saving materials, land, labor and high efficiency. The technical scheme adopted includes:

[0020] A novel assembly method for prefabricated box beam reinforcement includes the following steps:

[0021] S1. The bottom plate steel frame, web plate steel frame and top plate steel frame are separately tied in the factory, and the longitudinal reinforcement does not need to be tied at the corner intersection of the above steel frame;

[0022] S2, the bottom plate steel frame, the web plate steel frame and the top plate steel frame are sequentially hoisted on the assembly frame, and after the bottom plate steel frame and the web plate steel frame, the web plate steel frame and the top plate steel frame are assembled and aligned, the longitudinal reinforcement is inserted from the outside to the inside into each corner intersection in an integral insertion manner;

[0023] S3. Bind the longitudinal reinforcement at the corner intersections to complete the processing and assembly of the prefabricated box girder reinforcement.

[0024] According to a novel method for assembling reinforcement of a prefabricated box girder according to an embodiment of the present invention, in step S2, the bottom plate reinforcement skeleton is first hoisted into the assembly cradle and placed on the bottom mold; the web plate reinforcement skeleton is then hoisted into the assembly cradle, and the web plate reinforcement skeleton and the bottom plate reinforcement skeleton are assembled and aligned; then the inner mold is introduced into the assembly cradle, and the top plate reinforcement skeleton is hoisted and hoisted into the mold, and the top plate reinforcement skeleton and the web plate reinforcement skeleton are assembled and aligned, and finally the longitudinal reinforcement of each corner intersection is integrally inserted, and the corner cross longitudinal reinforcement is integrally inserted into each corner intersection.

[0025] According to a novel method for assembling reinforcement bars of a prefabricated box girder according to an embodiment of the present invention, in step S3, the longitudinal reinforcements at the corner intersections are tied after adjusting the longitudinal reinforcements at the corner intersections to the design accuracy.

[0026] According to a novel method for assembling reinforcement for a prefabricated box girder according to an embodiment of the present invention, in step S1, the bottom plate reinforcement skeleton, the web plate reinforcement skeleton and the top plate reinforcement skeleton are all formed by binding longitudinal bars and stirrups.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] The present invention provides a novel method for assembling prefabricated box girder reinforcement. Except for the longitudinal reinforcement at the intersection of the corners, the rest of the reinforcement of the prefabricated box girder of the present invention are bundled in the factory with the longitudinal reinforcement and stirrups to form a bottom plate reinforcement skeleton, a web reinforcement skeleton and a top plate reinforcement skeleton. For the convenience of accurate assembly, the bottom plate reinforcement skeleton, the web reinforcement skeleton and the top plate reinforcement skeleton are placed on an assembly frame in sequence. After the assembly is aligned, the longitudinal reinforcement at the intersection of the corners is inserted in an integral manner, and then the longitudinal reinforcement at the intersection of the corners is bundled, thus completing the assembly of the prefabricated box girder reinforcement. The present invention can realize the mechanized and rapid assembly of the prefabricated box girder reinforcement, reduce the construction site, save materials, improve work efficiency, and realize the rapid and accurate processing of the prefabricated box girder reinforcement. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0030] Figure 1 This is a schematic diagram of the structure of the bottom plate steel bar skeleton, the web plate steel bar skeleton and the top plate steel bar skeleton in the embodiment of the assembly method of the present invention;

[0031] Figure 2 Schematic diagram of the steps of the embodiment of the assembly method of the present invention Figure 1 ;

[0032] Figure 3 Schematic diagram of the steps of the embodiment of the assembly method of the present invention Figure 2 ;

[0033] Figure 4 Schematic diagram of the steps of the embodiment of the assembly method of the present invention Figure 3 ;

[0034] Figure 5 Schematic diagram of the steps of the embodiment of the assembly method of the present invention Figure 4 ;

[0035] Figure 6 Schematic diagram of the steps of the embodiment of the assembly method of the present invention Figure 5 .

[0036] Description of main component symbols:

[0037] 10. Bottom formwork; 20. Side formwork; 30. Inner formwork; 40. Bottom plate reinforcement frame; 50. Web plate reinforcement frame; 60. Top plate reinforcement frame; 70. Corner intersection; 80. Assembly frame. DETAILED DESCRIPTION

[0038] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0039] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and 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 orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0040] In the present invention, unless otherwise clearly defined, the words "set", "install", "connect" and the like should be understood in a broad sense, for example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected or detachably connected or integrally formed; they can be mechanically connected; they can be the internal connection of 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 invention in combination with the specific content of the technical solution.

[0041] Example

[0042] A novel assembly method for prefabricated box beam reinforcement includes the following steps:

[0043] S1. The bottom plate steel frame 40, the web plate steel frame 50 and the top plate steel frame 60 are separately tied in the factory, and the above steel frame does not need to be tied with longitudinal reinforcement at the corner intersection 70. The bottom plate steel frame 40, the web plate steel frame 50 and the top plate steel frame 60 are all tied with longitudinal reinforcement and stirrups, such as Figure 1 As shown;

[0044] S2, the bottom plate steel frame 40, the web plate steel frame 50 and the top plate steel frame 60 are sequentially hoisted on the assembly frame 80, and after the bottom plate steel frame 40 and the web plate steel frame 50, the web plate steel frame 50 and the top plate steel frame 60 are assembled and aligned, the longitudinal reinforcement is inserted into each corner intersection 70 from the outside to the inside in an integral penetration manner, such as Figure 2 , 3 , 4, 5, in specific implementation, an integral insertion device is used for insertion;

[0045] S3, tie the 70 longitudinal reinforcement at the corner intersection to complete the processing and assembly of the prefabricated box girder reinforcement, such as Figure 6 shown.

[0046] The present invention provides a novel method for assembling prefabricated box girder reinforcement. Except for the longitudinal reinforcement at the corner intersection 70, the remaining reinforcements of the prefabricated box girder of the present invention are tied with longitudinal reinforcement and stirrups in the factory to form a bottom plate reinforcement skeleton 40, a web reinforcement skeleton 50 and a top plate reinforcement skeleton. In order to facilitate accurate assembly, the bottom plate reinforcement skeleton 40, the web reinforcement skeleton 50 and the top plate reinforcement skeleton are placed on an assembly frame 80 in sequence. After the assembly is aligned, the longitudinal reinforcement at the corner intersection 70 is inserted in an integral manner, and then the longitudinal reinforcement at the corner intersection 70 is tied, thus completing the assembly processing of the prefabricated box girder reinforcement. The present invention can realize mechanized and rapid assembly of prefabricated box girder reinforcement, reduce the construction site, save materials, improve work efficiency, and realize rapid and accurate processing of prefabricated box girder reinforcement.

[0047] In the embodiment, the specific operation process of step S2 is as follows: first, hoist the bottom plate steel bar skeleton 40 into the assembly frame 80 and place it on the bottom mold 10. Figure 2 Then hoist the web reinforcement skeleton 50 into the assembly frame 80, and align the web reinforcement skeleton 50 and the bottom plate reinforcement skeleton 40, and then introduce the inner mold 30 into the assembly frame 80, as shown. Figure 3 Then the top plate steel frame 60 is hoisted, the top plate steel frame 60 is hoisted into the mold, and the top plate steel frame 60 and the web steel frame 50 are assembled and aligned, such as Figure 4 Finally, the longitudinal reinforcement of each corner intersection 70 is inserted as a whole, and the corner cross longitudinal reinforcement is inserted as a whole at each corner intersection 70, such as Figure 5 shown.

[0048] According to a novel method for assembling reinforcement bars of a prefabricated box girder according to an embodiment of the present invention, in step S3, the longitudinal bars at the corner intersection 70 are tied after adjusting the longitudinal bars at the corner intersection 70 to the design accuracy.

[0049] Of course, the present invention is not limited to the above-mentioned embodiments, and those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications and substitutions are all included in the scope defined by the claims of this application.

Claims

1. A novel method for assembling prefabricated box girder reinforcement, characterized in that: The following steps are included: S1. The bottom plate steel frame (40), the web plate steel frame (50) and the top plate steel frame (60) are separately tied in the factory, and the longitudinal reinforcement does not need to be tied at the corner intersection (70) of the above steel frame; S2, sequentially hanging the bottom plate steel frame (40), the web plate steel frame (50) and the top plate steel frame (60) on the assembly frame (80), after the bottom plate steel frame (40) and the web plate steel frame (50), the web plate steel frame (50) and the top plate steel frame (60) are assembled and aligned, inserting the longitudinal reinforcement into each corner intersection (70) from the outside to the inside in an integrally inserted manner; S3. Binding of longitudinal reinforcement at the corner intersection (70) is performed to complete the processing and assembly of the prefabricated box girder reinforcement.

2. A novel assembly method for prefabricated box beam reinforcement according to claim 1, characterized in that: In step S2, the bottom plate steel frame (40) is first hoisted into the assembly frame (80) and placed on the bottom mold (10); the web plate steel frame (50) is then hoisted into the assembly frame (80), and the web plate steel frame (50) and the bottom plate steel frame (40) are assembled and aligned; the inner mold (30) is then introduced into the assembly frame (80), and the top plate steel frame (60) is hoisted and hoisted into the mold, and the top plate steel frame (60) and the web plate steel frame (50) are assembled and aligned, and finally the longitudinal reinforcement of each corner intersection (70) is inserted as a whole, and the corner intersection longitudinal reinforcement is inserted as a whole into each corner intersection (70).

3. A novel method for assembling prefabricated box beam reinforcement according to claim 1, characterized in that: In step S3, after the longitudinal reinforcement at the corner intersection (70) is adjusted to the design accuracy, the longitudinal reinforcement at the corner intersection (70) is tied.

4. A novel method for assembling prefabricated box beam reinforcement according to claim 1, characterized in that: In step S1, the bottom plate steel frame (40), the web plate steel frame (50) and the top plate steel frame (60) are all formed by binding longitudinal bars and stirrups.

Images