Construction method for auxiliary steel column hoisting and installation

Abstract

The present application relates to construction, especially a kind of construction method for assisting steel column hoisting installation, comprising the following steps: S1, making hoisting buffer device and end head cushion block device;S2, steel column is placed on hoisting buffer device and end head cushion block device in an inclined manner, and the upper end head of steel column is placed on end head cushion block device;S3, the end of steel column placed on end head cushion block device is connected with the hook of hoisting equipment through sling;S4, hoisting equipment hoists, and the upper end head of steel column is separated from end head cushion block device;S5, hoisting equipment hoists slowly, and the lower end head of steel column gradually slides from the wedge surface of hoisting buffer device;S6, hoisting equipment continues to hoist slowly, and the lower end head of steel column is separated from hoisting buffer device, and steel column hoisting is completed.The present application reduces the great impact force generated by sudden swing of steel column on hoisting equipment, plays a buffering and adjusting role for steel column hoisting, guarantees the safety of steel column hoisting, and avoids the occurrence of unsafe accidents.

Description

Technical Field

[0001] This invention relates to building construction, and in particular to a construction method for assisting in the hoisting and installation of steel columns. Background Technology

[0002] During the construction of large-section steel columns, the columns are transported to the site on flatbed trucks, laid horizontally. Once on site, the columns need to be erected and hoisted vertically for installation. During this process, the hoisting machinery is subjected to a tremendous impact, significantly affecting it and potentially causing it to tip over or overturn. Traditional methods utilize a small crane, such as a 25-ton truck crane, to lift one end of the column during erection. As the column rises slowly, the small crane gradually bears the load, preventing excessive stress on the crane due to the sudden lifting of the column and providing support. However, this method requires sufficient construction space and the provision of the small crane, increasing the cost of construction equipment. Summary of the Invention

[0003] The present invention aims to solve the above-mentioned technical problems, thereby providing a construction method for assisting in the lifting and installation of steel columns and improving the safety of steel column lifting.

[0004] The technical solution adopted by this invention to solve its technical problem is as follows:

[0005] A construction method for assisting in the hoisting and installation of steel columns includes the following steps:

[0006] S1. Fabricate lifting buffer device and end pad device.

[0007] The lifting buffer device includes a left frame, a right frame, and a connecting frame. The left and right frames are wedge-shaped and symmetrically arranged. An I-shaped connecting frame is welded between the left and right frames. Multiple transverse steel bars are arranged on the wedge-shaped surface of the lifting buffer device. The end pad device includes strip-shaped pads and support legs.

[0008] S2. Place the steel column at an angle on the lifting buffer device and the end pad device, with the upper end of the steel column placed on the end pad device and the lower end of the steel column placed on the top of the wedge-shaped surface of the lifting buffer device.

[0009] S3. Place the steel column at one end of the end pad device and connect it to the hook of the lifting equipment via slings.

[0010] S4. When the lifting equipment lifts the steel column, the upper end of the steel column leaves the end pad device.

[0011] S5. The lifting equipment slowly lifts the steel column, which is then erected. The lower end of the steel column gradually slides off the wedge-shaped surface of the lifting buffer device.

[0012] S6. The lifting equipment continues to lift slowly. During the process of erecting the steel column, the lower end of the steel column detaches from the lifting buffer device, and the steel column is lifted vertically, completing the lifting of the steel column.

[0013] Compared with the prior art, the present invention, which adopts the above technical solution, has the following beneficial effects:

[0014] The lifting buffer device and end pad device assist the lifting equipment in lifting and installing the steel column, reducing the huge impact force on the lifting equipment caused by the sudden swaying of the steel column. They play a buffering and adjusting role in the lifting of the steel column, ensuring the safety of the steel column lifting and avoiding the occurrence of unsafe accidents. The operation is simpler, there are no geographical or site restrictions, and the rental cost of small lifting equipment is saved, which speeds up the construction progress.

[0015] Furthermore, the optimized solution of the present invention is:

[0016] The end pad device has multiple pairs of legs symmetrically fixed to both sides of the pad, and the legs are perpendicular to the pad.

[0017] The reinforcing bars are located between the inclined surfaces of the left and right frames and are spaced 100 mm apart.

[0018] The wedge angle between the left and right frames is 30 degrees.

[0019] The two ends of the reinforcing bar are respectively fitted with sleeves, which are rotatably connected to the reinforcing bar and fixedly connected to the wedge-shaped surface of the lifting buffer device. Attached Figure Description

[0020] Figure 1 This is a perspective view of the lifting buffer device according to an embodiment of the present invention;

[0021] Figure 2 This is a perspective view of the end pad block device according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of a steel column laid flat according to an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the steel column being lifted according to an embodiment of the present invention.

[0024] In the diagram: Lifting buffer device 1; Left frame 1-1; Right frame 1-2; Connecting frame 1-3; Reinforcing bar 1-4; End pad device 2; Pad 2-1; Outrigger 2-2; Sling 3; Steel column 4; Upper end 4-1; Lower end 4-2. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0026] See Figures 1-4 This embodiment describes a construction method for assisting in the hoisting and installation of steel columns, and is carried out according to the following steps:

[0027] S1. Fabricate lifting buffer device and end pad device.

[0028] The lifting buffer device 1 mainly consists of a left frame 1-1, a right frame 1-2, a connecting frame 1-3, and reinforcing bars 1-4. The left frame 1-1 and the right frame 1-2 are arranged in a triangular shape and are symmetrically arranged. The left frame 1-1 and the right frame 1-2 are welded components made of H-beams. A section of H-beam with specifications of HM500×300×11×18 is cut into two sections, each 2000mm long. The two sections of H-beams are then cut obliquely and symmetrically. The two symmetrically cut sections of HM500×300×11×18 are then welded end to end and end to end to form a wedge shape with a wedge angle of 30 degrees. Then, H-beams with specifications of HM200×150×6×9 are used to connect the two H-beams with specifications of HM500×300×11×18, welding them together to form a triangular whole. One acute angle of this triangle is the wedge angle. The left frame 1-1 and the right frame 1-2 are welded together by a connecting frame 1-3 and a connecting rod. The connecting frame 1-3 is I-shaped, and the connecting rod is located at the lower end of the left frame 1-1 and the right frame 1-2. The connecting frame 1-3 and the connecting rod are made of H-beams with specifications of HM200×150×6×9. Multiple transverse reinforcing bars 1-4 are arranged on the wedge-shaped surface of the lifting buffer device 1. The diameter of the reinforcing bars 1-4 is 30 mm, and the spacing is 100 mm.

[0029] The end pad device 2 mainly consists of a pad 2-1 and a support leg 2-2. The pad 2-1 is made of a section of HM500×300×11×18 H-beam. Three pairs of horizontal support legs 2-2 are symmetrically welded on both sides of the pad 2-1. The support legs 2-2 are perpendicular to the pad 2-1. The material of the support legs 2-2 is HM200×150×6×9 H-beam.

[0030] S2. Lift the steel column 4 flat from the transport vehicle and place it on the lifting buffer device 1 and the end pad device 2. The upper end 4-1 of the steel column 4 is placed on the end pad device 2, and the lower end 4-2 of the steel column 4 is placed on the top of the wedge-shaped surface of the lifting buffer device 1. The lower end 4-2 is the end that is welded to the upper column section.

[0031] S3. Connect the upper end 4-1 of the steel column 4 to the hook of the lifting equipment via the sling 3;

[0032] S4. The lifting equipment lifts the steel column 4 slowly, and the upper end 4-1 of the steel column is separated from the end pad device 2. The end pad device 2 plays a padding role when the steel column 4 is lifted off the ground to avoid damage to the ground and the steel column 4.

[0033] S5. The lifting equipment continues to lift slowly, and the steel column 4 is slowly erected. The lower end 4-2 of the steel column 4 gradually slides off the wedge-shaped surface of the lifting buffer device 1. The sliding speed is controlled by the steel bars 1-4 on the lifting buffer device 1 to prevent sudden force and to buffer the sliding of the steel column 4.

[0034] S6. The lifting equipment continues to lift slowly. As the steel column 4 is slowly lifted, the lower end 4-2 slides slowly from the wedge-shaped surface of the lifting buffer device 1 to the bottom until the steel column 4 is completely separated from the lifting buffer device 1. The steel column 4 is lifted vertically, and the direction of the steel column 4 smoothly transitions from horizontal to vertical. The lifting buffer device 1 reduces the impact force at that moment, completing the lifting process of the steel column 4.

[0035] In this embodiment, additional weight can be added below the lifting buffer device to prevent it from being pulled down during the sliding of the steel column 4, thus avoiding accidental injury. An arc-shaped bracket can also be welded onto the connecting frame 1-3, and arc-shaped reinforcing bars can be welded onto the bracket to position the steel column 4, preventing it from rolling and ensuring a slow descent.

[0036] In this embodiment, sleeves can also be installed at both ends of the reinforcing bars 1-4. The sleeves are rotatably connected to the reinforcing bars 1-4 through bearings. The sleeves are fixedly connected to the wedge-shaped surface of the lifting buffer device 1. During the sliding process, the lower end 4-2 of the steel column 4 rolls and rubs against the reinforcing bars 1-4 to reduce frictional resistance.

[0037] The method of this invention ensures the safety of steel column hoisting, improves construction safety, and protects personal safety; it solves the problem of the huge impact force generated at the moment of lifting the steel column from horizontal to vertical, avoids the need for small lifting machinery, saves machinery costs, and speeds up the construction progress; it has no requirements for the construction site and is highly practical.

[0038] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. All equivalent structural changes made based on the description and drawings of the present invention are included within the scope of the present invention.

Claims

1. A construction method for assisting in the hoisting and installation of steel columns, comprising the following steps: S1. Fabricate lifting buffer device and end pad device. The lifting buffer device includes a left frame, a right frame, and a connecting frame. The left and right frames are wedge-shaped and symmetrically arranged. An I-shaped connecting frame is welded between the left and right frames. Multiple transverse steel bars are arranged on the wedge-shaped surface of the lifting buffer device. The end pad device includes strip-shaped pads and support legs. S2. Place the steel column at an angle on the lifting buffer device and the end pad device, with the upper end of the steel column placed on the end pad device and the lower end of the steel column placed on the top of the wedge-shaped surface of the lifting buffer device. S3. Place the steel column at one end of the end pad device and connect it to the hook of the lifting equipment via slings. S4. When the lifting equipment lifts the steel column, the upper end of the steel column leaves the end pad device. S5. The lifting equipment slowly lifts the steel column, which is then erected. The lower end of the steel column gradually slides off the wedge-shaped surface of the lifting buffer device. S6. The lifting equipment continues to lift slowly. During the process of erecting the steel column, the lower end of the steel column detaches from the lifting buffer device, and the steel column is lifted vertically, completing the lifting of the steel column. Multiple pairs of support legs are symmetrically fixed to both sides of the pad block of the end pad device, and the support legs are perpendicular to the pad block. The reinforcing bars are located between the wedge-shaped surfaces of the left and right frames and are spaced 100 mm apart; The wedge angle between the left and right frames is 30 degrees; The two ends of the reinforcing bar are respectively fitted with sleeves, which are rotatably connected to the reinforcing bar and fixedly connected to the wedge-shaped surface of the lifting buffer device.

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