Novel cantilever steel bar installation auxiliary tool

Abstract

The utility model relates to the technical field of bridge construction, in particular to an auxiliary tool for mounting a cantilever steel bar. One end of the body is fixed to a bridge, the body comprises a horizontally-arranged frame, two parallel transverse rods are arranged on the frame, a plurality of rolling shafts perpendicular to the transverse rods are connected between the two transverse rods, the upper end faces of the rolling shafts form a reinforcing steel bar moving face, and a pull rope used for driving reinforcing steel bars to move on the rolling shafts is arranged at the upper end of the reinforcing steel bar moving face. Through the arrangement of the reinforcing steel bar moving surface, the reinforcing steel bar mounting process is simplified, the labor intensity of manual reinforcing steel bar mounting is reduced, convenient movement of the reinforcing steel bars is achieved, and the working safety of workers is guaranteed through the vertical rods arranged in the bridge. And due to the design of the pull rope, movement of the reinforcing steel bars is more accurate, positioning of the reinforcing steel bars is achieved more easily, and the mounting quality of the reinforcing steel bars is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, and specifically, to an auxiliary tooling for installing the steel bars of a cantilever beam. Background Art

[0002] With the large-scale application of long-span bridges, it is an inevitable trend for China's future development of transportation infrastructure to widely adopt steel structures. The cost of steel girders should comprehensively consider various factors such as construction costs, safety and durability, management and maintenance, etc. Steel structure bridges have a relatively light self-weight. The main body of steel structure bridges adopts wet joint steel bars, which saves the cost of the lower structure, and at the same time, the construction speed is relatively fast and the construction period is relatively short.

[0003] During the installation of the steel bars in the cast-in-place section, it is necessary to keep the original single-bar length intact and minimize unnecessary lap joints. Due to the insufficient maximum length of a single steel bar, the bottom longitudinal main steel bars can only be inserted from the outer sides of the bridge side lines on both sides, so that the traditional steel bar installation method using a cantilever safety operation platform has problems such as inconvenient steel bar installation and great potential safety hazards for workers. Summary of the Utility Model

[0004] The utility model provides an auxiliary tooling for installing the steel bars of a cantilever beam, which can solve the problems of inconvenient steel bar installation and great potential safety hazards for workers in the prior art.

[0005] An auxiliary tooling for installing the steel bars of a cantilever beam according to the utility model includes: a main body fixed to the bridge at one end, the main body includes a horizontally arranged frame, there are two parallel cross bars arranged at the frame, and a plurality of rollers perpendicular to the cross bars are connected between the two cross bars. The upper end surfaces of the rollers form a steel bar moving surface, and a pulling rope for driving the steel bar to move on the rollers is arranged above the steel bar moving surface.

[0006] Through the arrangement of the rollers in the utility model, the steel bar can move more easily on the steel bar moving surface, thereby accelerating the installation speed of the steel bar.

[0007] Through the arrangement of the steel bar moving surface in the utility model, the steel bar installation process is simplified, the labor intensity of manually installing the steel bar is reduced, the convenient movement of the steel bar is realized, the outward-extending steel bar moving surface also well ensures the safety of the staff, and through the pulling rope, the movement of the steel bar is more accurate, it is easier to realize the positioning of the steel bar, and the quality of the steel bar installation is ensured.

[0008] Preferably, vertical rods perpendicular to the cross bars are respectively arranged on the two cross bars. One end of the vertical rod close to the steel bar moving surface is inserted and fixed with the wet joint steel bar, and a stay cable is arranged at the end of the vertical rod far from the steel bar moving surface, and the stay cable is fixedly connected to both ends of the cross bar.

[0009] In this utility model, the stability and load-bearing capacity of the main body are enhanced through the arrangement of the vertical pole and the stay cable. The cooperation between the cross bar and the stay cable makes the reinforcing bar moving surface more stable, improving the overall performance of the tooling. The design of the stay cable has a certain elasticity, which helps to absorb the impact and vibration during the movement of the reinforcing bar.

[0010] Preferably, two cross bars are also provided with reinforcing cross bars parallel to the rollers, and both ends of the reinforcing cross bars are fixed at the joints of the cross bars and the vertical poles.

[0011] In this utility model, the overall rigidity and stability of the tooling are increased through the arrangement of the reinforcing cross bars. The reinforcing cross bars share part of the load, enabling the tooling to bear a greater weight.

[0012] Preferably, rotating bearings for driving the reinforcing bar to move along the direction of the reinforcing bar moving surface are provided at both ends of the rollers.

[0013] In this utility model, the design of the rotating bearings enables the rollers to rotate freely, further reducing friction and resistance. The addition of the bearings makes the movement of the reinforcing bar more stable and continuous.

[0014] Preferably, the materials of the stay cable and the pull rope are nylon.

[0015] In this utility model, the stay cable and the pull rope made of nylon have high strength and wear resistance, ensuring the service life of the main body. The nylon material is lightweight and easy to operate, improving the practicability of the main body. Moreover, the nylon material has a certain elasticity, which helps to absorb the impact when the reinforcing bar moves.

[0016] Preferably, one end of the vertical pole close to the bridge is used for inserting and fixing the wet joint reinforcing bar, and the cross bar is close to the bridge surface and extends perpendicularly outward from the outer side of the bridge.

[0017] In this utility model, the setting of inserting and fixing the vertical pole into the wet joint reinforcing bar enhances the connection strength between the tooling and the bridge. The setting that the cross bar is close to the bridge surface and extends perpendicularly outward from the outer side of the bridge makes the reinforcing bar more stable during the movement, reducing the possibility of shaking and deviation. At the same time, it also provides a safer working environment for the operators. Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the auxiliary tooling for cantilever reinforcing bar installation.

[0019] Figure 2 It is a schematic diagram of the roller.

[0020] Figure 3 It is a cross-sectional view of the roller. Detailed Embodiment

[0021] To further understand the content of the present utility model, the present utility model will be described in detail in conjunction with embodiments. It should be understood that the embodiments are only for explaining the present utility model rather than limiting it.

[0022] Embodiment 1

[0023] As Figures 1 - 3 shown, this embodiment provides an auxiliary tooling for cantilever steel bar installation, which includes a body 100 fixed to the bridge at one end. The body 100 includes a horizontally arranged frame 110. There are two parallel cross bars 111 arranged at the frame 110. A plurality of rollers 112 perpendicular to the cross bars 111 are connected between the two cross bars 111. The upper end surfaces of the rollers 112 form a steel bar moving surface 120. A pulling rope 130 for driving the steel bar to move on the rollers 112 is arranged above the steel bar moving surface 120.

[0024] Through the arrangement of the rollers 112 in the present utility model, the steel bar can move more easily on the steel bar moving surface 120, thereby accelerating the installation speed of the steel bar.

[0025] Through the arrangement of the steel bar moving surface 120 in the present utility model, the steel bar installation process is simplified, the labor intensity of manually installing the steel bar is reduced, the convenient movement of the steel bar is realized, the outwardly extending steel bar moving surface 120 also well guarantees the safety of the staff, and through the pulling rope 130, the movement of the steel bar is more accurate, and it is easier to realize the positioning of the steel bar, ensuring the quality of the steel bar installation.

[0026] In this embodiment, vertical rods 140 perpendicular to the cross bars 111 are respectively arranged on the two cross bars 111. One end of the vertical rod 140 close to the steel bar moving surface 120 is inserted and fixed with the wet joint steel bar. One end of the vertical rod 140 far from the steel bar moving surface 120 is provided with a stay cable 150, and the stay cable 150 is fixedly connected to both ends of the cross bar 111.

[0027] Through the arrangement of the vertical rod 140 and the stay cable 150 in this embodiment, the stability and load-bearing capacity of the body are enhanced. The cooperation between the cross bar 111 and the stay cable 150 makes the steel bar moving surface 120 more stable, improving the overall performance of the tooling. The stay cable 150 has a certain elasticity, which helps to absorb the impact and vibration during the movement of the steel bar.

[0028] In this embodiment, a reinforcing cross bar 113 parallel to the rollers 112 is also arranged on the two cross bars 111. Both ends of the reinforcing cross bar 113 are fixed at the connection between the cross bar 111 and the vertical rod 140.

[0029] Through the arrangement of the reinforcing cross bar 113 in this embodiment, the rigidity and stability of the body 100 are increased. The reinforcing cross bar 11

[0030] It shares part of the load, enabling the main body 100 to bear a greater weight.

[0031] In this embodiment, rotating bearings 1121 for driving the steel bars to move along the direction of the steel bar moving surface 120 are provided at both ends of the roller 112.

[0032] Due to the design of the rotating bearings 1121 in this embodiment, the roller 112 can rotate freely, further reducing friction and resistance. The addition of the rotating bearings 1121 makes the movement of the steel bars more stable and continuous.

[0033] In this embodiment, the materials of the stay cables 150 and the stay ropes 130 are nylon.

[0034] The stay cables 150 and the stay ropes 130 made of nylon in this embodiment have high strength and wear resistance, ensuring the service life of the main body 100. The nylon material is lightweight and easy to operate, improving the practicality of the main body 100. Moreover, the nylon material has a certain elasticity, which helps to absorb the impact when the steel bars move.

[0035] In this embodiment, one end of the vertical rod 140 close to the bridge is used to insert and fix the wet joint steel bars, and the cross bar 111 is close to the bridge surface and extends perpendicularly outward from the outer side of the bridge.

[0036] The setting of inserting and fixing the vertical rod 140 into the wet joint steel bars in this embodiment enhances the connection strength between the main body 100 and the bridge. The setting that the cross bar 111 is close to the bridge surface and extends perpendicularly outward from the outer side of the bridge makes the steel bars more stable during the movement process, reducing the possibility of shaking and deviation. At the same time, it also provides a safer working environment for the operators.

[0037] When this embodiment is in use, insert the vertical rod 140 into the wet joint steel bars and fix it, and fix the cross bar 111 and the roller 112 to assemble the steel bar moving surface 110, and slowly extend it along the outer side of the bridge to the designated position. Fix the stay cables 150 at the top of the vertical rod 140 and both ends of the cross bar 111 to form a stable structure of the stay cables 150. A reinforcing cross bar 113 is also provided at the connection between the cross bar 111 and the vertical rod 140, and the reinforcing cross bar 113 further enhances the stability of the main body 100. After the main body 100 is installed, drive the steel bars to move forward on the steel bar moving surface 120 horizontally through the stay ropes 130 at the bottom layer of the bridge. Due to the existence of the roller 112 and the rotating bearings 1121, the friction and resistance will be reduced during the forward movement of the steel bars, facilitating the installation. Then, insert the rear end of the semi-finished steel bars into the designed position of the bottom layer of the steel bars, and start manual pulling back. Use the nylon stay ropes 130 to install the semi-finished steel bars to the designed position. The operators are always in a safe position inside the bridge deck and do not need to work at the edge.

[0038] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments provided in this application to obtain other embodiments on the basis of one or several embodiments provided in this application, and these embodiments do not exceed the protection scope of this application.

[0039] The above has schematically described the present utility model and its implementation manners. This description is not restrictive. What is shown in the embodiments is only part of the implementation manners of the present utility model, and the actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments to this technical solution without creative efforts under the premise of not departing from the creative concept of the present utility model, they shall fall within the protection scope of the present utility model.

Claims

1. An auxiliary tooling for the installation of cantilever steel bars, characterized in that: It includes a main body (100) with one end fixed to a bridge. The main body (100) includes a horizontally arranged frame (110). There are two horizontally arranged cross bars (111) provided at the frame (110). A plurality of rollers (112) perpendicular to the cross bars (111) are connected between the two cross bars (111). The upper end surfaces of the rollers (112) form a steel bar moving surface (120). A pulling rope (130) for driving the steel bar to move on the rollers (112) is provided at the upper end of the steel bar moving surface (120). Vertical rods (140) perpendicular to the cross bars (111) longitudinally are respectively provided on the two cross bars (111). One end of the vertical rod (140) close to the steel bar moving surface (120) is inserted and fixed to the wet joint steel bar. A stay cable (150) is provided at the end of the vertical rod (140) far from the steel bar moving surface (120). The stay cable (150) is fixedly connected to both ends of the cross bar (111).

2. The auxiliary tooling for installing cantilever steel bars according to claim 1, characterized in that: Reinforcing cross bars (113) parallel to the rollers (112) are also provided on the two cross bars (111). Both ends of the reinforcing cross bar (113) are fixed at the connection between the cross bar (111) and the vertical rod (140).

3. The auxiliary tooling for installing cantilever steel bars according to claim 2, characterized in that: Rotating bearings (1121) for driving the steel bar to move along the direction of the steel bar moving surface (120) are provided at both ends of the rollers (112).

4. The auxiliary tooling for installing cantilever steel bars according to claim 1, characterized in that: The materials of the stay cable (150) and the pulling rope (130) are nylon.

5. The auxiliary tooling for installing cantilever steel bars according to claim 1, wherein: One end of the vertical rod (140) close to the bridge is used for inserting and fixing to the wet joint steel bar. The cross bar (111) is close to the bridge surface and extends outward perpendicular to the outer side of the bridge surface.

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