CN115680128A - High-altitude self-jacking installation device for overhanging steel structure and working method of high-altitude self-jacking installation device - Google Patents

Abstract

The invention relates to an overhead self-jacking installation device for an overhanging steel structure and a working method thereof. Compared with the prior art, the steel structure component is directly installed on the assembling platform at the low-altitude position, the assembling platform and the steel structure component are lifted to the corresponding height by the self-lifting tower frame, and the connecting and installation with the upper structure of the building main body can be completed.

Description

A high-altitude self-jacking installation device for a suspended steel structure and its working method

technical field

The invention relates to the technical field of high-altitude installation of building steel structures, in particular to a high-altitude self-jacking installation device for a cantilevered steel structure and a working method thereof.

Background technique

Due to the needs of architectural modeling, some taller steel structure buildings will have some cantilevered structures, the cantilevered structure is.

Most of the traditional installation methods of cantilevered steel structures use cranes to assemble high-altitude parts. On the one hand, large-tonnage cranes are required, and a large construction site area is required. On the other hand, high-altitude assembly operations are difficult and impossible. Ensuring the installation quality is also likely to cause high-altitude safety accidents. In addition, due to the need for long-term use of cranes and scaffolding for construction work, not only the construction economic cost is high, but the construction efficiency is low.

Contents of the invention

The object of the present invention is to provide a high-altitude self-jacking installation device for a cantilevered steel structure and its working method in order to overcome the above-mentioned defects in the prior art, which can avoid the use of large-tonnage cranes and improve assembly quality and construction efficiency.

The purpose of the present invention can be achieved through the following technical solutions: a high-altitude self-jacking installation device for a cantilevered steel structure, including a self-jacking tower, and the self-jacking tower is installed on the ground at the side of the outer wall of the building main body An assembly platform is detachably connected to the top of the self-jacking tower, and a cantilevered steel structure is placed on the assembly platform.

Further, a main steel structure is installed on the top of the building main body.

Further, the assembly platform is slidingly connected to the side of the outer wall.

Further, one end of the assembly platform is provided with guide rollers.

Further, the wheel surface of the guide roller is in conflict with the side of the outer wall.

Further, the self-jacking tower includes a plurality of tower segments that can be pushed in and taken out.

Further, the number of self-jacking towers is greater than or equal to two.

Further, there is a distance between the self-jacking tower and the side of the outer wall.

Further, the distance between the self-jacking tower and the side of the outer wall is half the length of the assembled platform.

Further, the length of the assembled platform is greater than the length of the cantilevered steel structure.

A high-altitude self-jacking installation method for a cantilevered steel structure, comprising the following steps:

S1. Install a self-jacking tower on the ground at the side of the outer wall;

S2. An assembly platform is built on the top of the self-jacking tower, so that one end of the assembly platform is slidably connected to the side of the outer wall;

S3, install the cantilevered steel structure on the assembly platform;

S4. Carry out the jacking operation on the self-jacking tower, and push the tower segments into the self-jacking tower in turn to increase the height of the tower until the cantilevered steel structure on the assembled platform is lifted to the set height , to connect the cantilevered steel structure with the main steel structure;

S5. The self-jacking tower is lowered, and the tower segments in the tower are removed until the assembly platform is lowered to the original height, and the assembly platform is removed from the top of the self-jacking tower to complete the installation process.

Compared with the prior art, the present invention sets a self-jacking tower and a detachable assembly platform on the top of the self-jacking tower, so that the steel structural members can be directly installed on the assembly platform at a low altitude, and then Use the self-jacking tower to lift the assembly platform together with the steel structural components to the corresponding height, and then complete the connection and installation with the upper structure of the main body of the building. This invention does not need to use a large-tonnage crane or a full-scale scaffolding, which effectively reduces construction costs. The economical cost of installation, because the cantilevered steel structure assembly can be completed at low altitude, can not only ensure the quality of product assembly, but also avoid high-altitude operations, effectively improving construction efficiency and safety.

In the present invention, one end of the assembly platform is slidably connected to the side of the outer wall, so that the assembly platform can be guided along the outer wall in the process of rising or falling, so as to ensure that the assembly platform can rise or fall stably and quickly, and further improve construction efficiency and safety .

Description of drawings

Fig. 1 is the structural representation of high-altitude self-jacking installation device in the embodiment;

Fig. 2 is the schematic diagram of effect after installation in the embodiment;

Notes in the figure: 1. Main body of the building, 2. Main steel structure, 3. Cantilevered steel structure, 4. Self-jacking tower, 5. Assembly platform, 6. Guide rollers, 7. External wall, 8. Tower Segments.

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

Example

As shown in Figure 1, a high-altitude self-jacking installation device for a cantilevered steel structure includes a self-jacking tower 4, and the self-jacking tower 4 is installed on the side ground of the outer wall 7 of the building main body 1, and the self-jacking An assembled platform 5 is detachably connected to the top of the tower 4, and a cantilevered steel structure 3 is placed on the assembled platform 5.

Wherein, the assembly platform 5 is slidingly connected with the side of the outer wall 7. In this embodiment, a guide roller 6 is set at one end of the assembly platform 5, and the wheel surface of the guide roller 6 is in conflict with the side of the outer wall 7, so that the assembly platform 5 can be raised and lowered. Can guide along outer wall 7 during.

In addition, the self-jacking tower 4 includes a plurality of tower segments 8 that can be pushed in and taken out. According to actual use requirements, the number of self-jacking towers 4 is greater than or equal to 2;

There is a distance between the self-jacking tower 4 and the side of the outer wall 7. In this embodiment, the distance between the self-jacking tower 4 and the side of the outer wall 7 is half the length of the assembly platform 5, that is, the assembly platform 5 The center position in the length direction coincides with the top center position of the self-jacking tower 4 .

The length of the assembly platform 5 is greater than the length of the cantilevered steel structure 3 , which can ensure that the cantilevered steel structure 3 is stably placed on the assembled platform 5 .

In practice, the main body of the building 1, the main steel structure 2, and the cantilevered steel structure 3 are the composition of the building. One floor. When it is difficult to install the 3-cantilever steel structure, this technical solution can be used to realize efficient and safe construction operations.

The working method of the high-altitude self-jacking device of the above-mentioned cantilevered steel structure comprises the following steps:

S1. Install the self-jacking tower 4 on the ground at the side of the outer wall 7;

S2. Build an assembly platform 5 on the top of the self-jacking tower 4, so that one end of the assembly platform 5 is slidably connected to the side of the outer wall 7;

S3, install the cantilevered steel structure 3 on the assembly platform 5;

S4. Carry out the jacking operation on the self-jacking tower 4, and push the tower segments 8 into the self-jacking tower in turn to increase the height of the tower until the cantilevered steel structure 3 on the assembled platform 5 is jacked up To the set height, connect the cantilever steel structure 3 with the main steel structure 2 (the final installation effect is shown in Figure 2);

S5. The self-jacking tower 4 is lowered, and the tower segment 8 in the tower is removed until the assembly platform 5 is lowered to the original height, and the assembly platform 5 is removed from the top of the self-jacking tower 4 to complete the installation process.

During actual installation, the main steel structure 2 will be installed on the top of the building main body 1 first, and two or more self-jacking towers 4 will be installed on the ground as needed, and a detachable assembly structure will be built on the top of the self-jacking tower 4. platform5. One end of the assembly platform 5 near the building exterior wall 7 is provided with guide rollers 6, so that the assembly platform 5 can be guided along the building exterior wall 7 when it goes up and down.

Install the cantilevered steel structure 3 on the assembly platform 5. After the cantilevered steel structure 3 is completely installed, the self-jacking tower 4 is jacked up. In jacking up the tower, the height of the tower is increased to lift the cantilevered steel structure 3 to a designated position and connect it with the main steel structure 2 .

Finally, the self-jacking tower 4 descends by itself, removes a plurality of tower segments 8, and lowers the assembled platform 5 to a low place for dismantling, so that the installation of the cantilevered steel structure 3 and the self-jacking tower 4 and the assembled platform can be realized 5 The process of dismantling.

In summary, this technical solution installs the steel structural components on the low-altitude assembly platform, uses the self-jacking tower to lift the platform together with the steel structural components on the assembled platform to a predetermined position, and then integrates with the upper main steel structure After the splicing is completed, the installation of the cantilevered steel structure can be realized. In this way, the use of large-tonnage cranes and scaffolding can be avoided, which is economical; high-altitude operations are avoided, and safety is good; low-altitude assembly ensures the quality of assembly.

Claims (10)

1. A high-altitude self-jacking installation device for a cantilevered steel structure, characterized in that it includes a self-jacking tower (4), and the self-jacking tower (4) is installed on the outer wall of the building body (1) (7) On the side ground, an assembly platform (5) is detachably connected to the top of the self-jacking tower (4), and a cantilevered steel structure (3) is placed on the assembly platform (5). 2. A high-altitude self-jacking installation device for a cantilevered steel structure according to claim 1, characterized in that a main steel structure (2) is installed on the top of the building main body (1). 3. A high-altitude self-jacking installation device for a cantilevered steel structure according to claim 1, characterized in that the assembly platform (5) is slidingly connected to the side of the outer wall (7). 4. The high-altitude self-jacking installation device for a cantilevered steel structure according to claim 3, characterized in that, one end of the assembly platform (5) is provided with a guide roller (6), and the guide roller (6 ) is in conflict with the side of the outer wall (7). 5. A high-altitude self-jacking installation device for a cantilevered steel structure according to any one of claims 1-4, characterized in that the self-jacking tower (4) includes a plurality of towers that can be pushed in and taken out frame segment (8). 6. A high-altitude self-jacking installation device for a cantilevered steel structure according to any one of claims 1-4, characterized in that, the number of said self-jacking towers (4) is greater than or equal to 2. 7. A high-altitude self-jacking installation device for a cantilevered steel structure according to any one of claims 1 to 4, characterized in that, between the self-jacking tower (4) and the side of the outer wall (7) There is a gap between. 8. The high-altitude self-jacking installation device of a cantilevered steel structure according to claim 7, wherein the distance between the self-jacking tower (4) and the side of the outer wall (7) is Half of the length of the assembled platform (5). 9. A high-altitude self-jacking installation device for a cantilevered steel structure according to any one of claims 1-4, characterized in that the length of the assembly platform (5) is greater than the length of the cantilevered steel structure (3). 10. A high-altitude self-jacking installation method for a cantilevered steel structure, characterized in that it comprises the following steps: S1. Install a self-jacking tower on the ground at the side of the outer wall; S2. An assembly platform is built on the top of the self-jacking tower, so that one end of the assembly platform is slidably connected to the side of the outer wall; S3, install the cantilevered steel structure on the assembly platform; S4. Carry out the jacking operation on the self-jacking tower, and push the tower segments into the self-jacking tower in turn to increase the height of the tower until the cantilevered steel structure on the assembled platform is lifted to the set height , to connect the cantilevered steel structure with the main steel structure; S5. The self-jacking tower is lowered, and the tower segments in the tower are removed until the assembly platform is lowered to the original height, and the assembly platform is removed from the top of the self-jacking tower to complete the installation process.

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