Main reinforcement hoisting formwork for square thin-wall pier column

Abstract

The utility model discloses a square thin-wall pier stud main reinforcement hoisting formwork which comprises a tower crane lifting hook and four sets of lifting frames, and the four lifting frames form a whole. A tower crane lifting hook is connected with the lifting frame through a steel rope, the lifting frame is formed by welding 14 steel channels, a plurality of sets of steel bar lifting lug plates are welded to the lower end of the lifting frame, each set of steel bar lifting lug plates is connected with a set of connecting steel rope, and a set of connecting shackles are arranged below the connecting steel ropes and used for being connected with main bars, so that steel bar lifting operation is achieved. The utility model has the following advantages: (1) through the overall hoisting installation of a tower crane, the number of steel bars installed at a time is increased, and the steel bar installation speed is increased; (2) through effective connection of the buckles, the risk of releasing of the reinforcing steel bars in the hoisting process is avoided, and the safety risk is reduced; (3) the twisting deformation and the thread head damage of the whole bundle of reinforcing steel bars in the hoisting, vertical rotating and lowering process are avoided, and the reinforcing steel bar connection quality is ensured; and (4) long-time high-altitude operation of a project is avoided, and the safety risk is reduced.

Description

Technical Field

[0001] This utility model relates to the field of hoisting the main reinforcement of square thin-walled pier columns, specifically to a hoisting formwork for the main reinforcement of square thin-walled pier columns. Background Technology

[0002] In the construction of highways in mountainous areas, bridge piers often face challenges such as large height and large pier dimensions. The construction of square hollow piers involves extensive splicing and installation of main reinforcement bars, frequent operations, long hours at height, and significant safety risks during rebar hoisting and placement. Traditional construction methods (traditional installation one pier or section at a time) are insufficient to meet the requirements of speed, safety, and quality control.

[0003] Existing hoisting methods of the same type have the following problems:

[0004] (1) The number of hoisting operations is small and the speed is slow;

[0005] (2) The hoisting process carries the risk of steel bar overturning and disengagement, posing a high safety risk;

[0006] (3) The external force generated during hoisting will cause the steel bars to deform, and the quality will be uncontrollable;

[0007] (4) The main reinforcement installation process requires external force assistance, and the reinforcement is lifted and installed one by one, resulting in unstable sleeve connection quality;

[0008] (5) The entire hoisting process takes a long time, increasing the workload of workers and the time spent working at height.

[0009] Therefore, research on the construction technology of integral hoisting formwork and rapid positioning and installation of main reinforcement bars for square hollow piers is of great practical significance. Utility Model Content

[0010] Therefore, to address the aforementioned shortcomings, this utility model provides a formwork for hoisting the main reinforcing bars of a square thin-walled pier column. The main reinforcing bars of the square pier are first positioned and connected on the ground to form a whole, and then hoisted as a whole by a tower crane. This method greatly improves the speed of reinforcing bar installation and effectively prevents the overturning of reinforcing bars during construction. Compared with traditional installation one bar or section at a time, it reduces the working time of personnel working at heights, lowers safety hazards, and reduces the labor intensity of construction workers.

[0011] This utility model is implemented as follows: a square thin-walled pier column main reinforcement hoisting formwork is constructed, characterized in that: the formwork consists of a tower crane hook and four sets of hangers, which form an integral whole; the tower crane hook is connected to the hangers via steel ropes; the hangers are welded from 14 channel steel; multiple sets of steel bar lifting lugs are welded to the lower end of the hangers; each set of steel bar lifting lugs is connected to a set of connecting steel ropes; a set of connecting shackles is set below the connecting steel ropes to connect the main reinforcement, thereby realizing the steel bar hoisting operation.

[0012] The square thin-walled pier column main reinforcement hoisting formwork according to the present invention is characterized in that: two hoisting points are provided at the top of the hoisting frame for connection with the tower crane hook.

[0013] The square thin-walled pier column main reinforcement hoisting formwork according to the present invention is characterized in that: multiple sets of steel reinforcement lifting lugs are formed by welding steel plates at the main reinforcement spacing below the hoisting frame.

[0014] The square thin-walled pier column main reinforcement hoisting formwork according to the present invention is characterized in that: the four hangers are bolted together to form a whole, and then the whole is hoisted to the installation point for the installation of the whole main reinforcement.

[0015] The present invention has the following advantages: (1) The installation of steel bars by lifting and installing them as a whole by tower crane increases the number of steel bars installed at one time and improves the speed of steel bar installation; (2) The effective connection of the buckle avoids the risk of steel bars coming off during the hoisting process and reduces safety risks; (3) It avoids the twisting and deformation of steel bars and damage to the threads during the lifting, vertical rotation and lowering of the whole bundle of steel bars, and ensures the quality of steel bar connection; (4) It avoids long-term high-altitude operation in the project and reduces safety risks. Attached Figure Description

[0016] Figure 1 This is a plan view of the positioning frame and hanger;

[0017] Figure 2 This is a schematic diagram of the elevation of the positioning frame and hanger;

[0018] Figure 3 This is a schematic diagram showing the four hangers of the square pier column connected as a whole.

[0019] The components include: 1. Tower crane hook; 2. Hanger; 3. Steel rope; 4. Rebar lifting lug; 5. Connecting steel rope; 6. Connecting shackle; 7. Connecting main reinforcement; 8. Bolt; 9. Lifting point. Detailed Implementation

[0020] The following will be combined with the appendix Figures 1-3This utility model will be described in detail, and the technical solutions in the embodiments of this utility model will be clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0021] This utility model provides a square thin-walled pier column main reinforcement hoisting formwork, such as... Figures 1-3 As shown, it can be implemented in the following manner: The formwork consists of a tower crane hook 1 and four sets of lifting frames 2, which form a whole; the tower crane hook 1 lifts the load and connects to the lifting frames via steel ropes 3. The lifting frames 2 are welded from 14 channel steel. Multiple sets of steel bar lifting lugs 4 are welded to the lower end of the lifting frames 2. Each set of steel bar lifting lugs is connected to a set of connecting steel ropes 5. A set of connecting shackles 6 is set below the connecting steel ropes 5 to connect the main reinforcing bars 7, thereby realizing the steel bar hoisting operation.

[0022] During the implementation of this formwork, two lifting points 9 are set at the top of the hanger 2 for connection with the tower crane hook 1.

[0023] During the implementation of this formwork, multiple sets of steel reinforcement lifting lugs 4 are formed by welding steel plates below the hanger 2 according to the spacing of the main reinforcement bars.

[0024] During the implementation of this formwork, the four hangers are bolted together with bolts 8 to form a whole, and then the whole is lifted to the installation point for the installation of the main reinforcement.

[0025] The implementation process of this mold frame is described below;

[0026] (1) Hanger fabrication: The hanger is composed of steel sections and steel plates, with two lifting points at the top. Steel plates are welded below the lifting points according to the spacing of the main reinforcing bars.

[0027] (2) Locking the steel bars: Use the jack rope and shackle to lock the steel bars. After locking, check each connection point, lifting ring and steel rope in turn. After checking that there are no problems, prepare to lift.

[0028] (3) Lifting formwork assembly: The four-sided hangers are assembled and connected on the assembly jig. The hanger connection adopts a flexible connection. The bolt holes are reserved on the end steel plates and temporary connections are made with bolts to form an integral lifting formwork.

[0029] (4) Overall lifting: Use a tower crane to lift the pier column steel bars as a whole until they are lifted to the steel bar installation position and locked.

[0030] (5) Positioning and installation: After the reinforcing bars are positioned and locked, the workers will connect the main reinforcing bars with sleeves and complete the installation of the main reinforcing bars.

[0031] The implementation of this patent has the following advantages and beneficial effects: (1) By hoisting and installing the entire steel bar by tower crane, the number of steel bars installed at one time is increased, and the speed of steel bar installation is improved; (2) By effectively connecting the buckles, the risk of steel bar detachment during hoisting is avoided, and the safety risk is reduced; (3) The twisting and deformation of the steel bars and the damage to the threads are avoided during the hoisting, vertical rotation and lowering of the entire bundle of steel bars, and the quality of steel bar connection is ensured; (4) The long-term high-altitude operation of the project is avoided, which reduces the safety risk.

[0032] The integrated hoisting formwork for the main reinforcement of square hollow piers has, through practical application, significantly improved construction efficiency and quality while effectively reducing the risks and costs of high-altitude operations. This technology demonstrates significant advantages in ensuring construction safety, shortening the construction period, and saving resources, providing valuable reference experience for future highway pier construction in mountainous areas. With continuous optimization and promotion of the technology, it is believed that it will bring practical benefits to more similar projects and drive the continuous progress of the industry's technical level.

[0033] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A formwork for hoisting the main reinforcing bars of a square thin-walled pier column, characterized in that; The formwork consists of a tower crane hook (1) and four sets of hangers (2), which form a whole. The tower crane hook (1) is lifted and connected to the hangers via steel rope (3). The hangers (2) are welded from 14 channel steel. Multiple sets of steel bar lifting lugs (4) are welded to the lower end of the hangers (2). Each set of steel bar lifting lugs is connected to a set of connecting steel ropes (5). A set of connecting shackles (6) is set below the connecting steel ropes (5) to connect the main reinforcement (7) and realize the steel bar hoisting operation.

2. The formwork for hoisting the main reinforcement bars of the square thin-walled pier column according to claim 1, characterized in that; The top of the hanger (2) is provided with two lifting points (9); for connection with the tower crane hook (1).

3. The formwork for hoisting the main reinforcement bars of the square thin-walled pier column according to claim 1, characterized in that; Multiple sets of steel lifting lugs (4) are formed by welding steel plates at the spacing of the main reinforcement bars below the hanger (2).

4. The formwork for hoisting the main reinforcement bars of the square thin-walled pier column according to claim 1, characterized in that; The four hangers are bolted together by bolts (8) to form a whole, and then the whole is lifted to the installation point for the installation of the main reinforcement.

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