CN117759025A - A cast-in-place super-large cantilevered special-shaped structure formwork installation structure and construction method - Google Patents

Abstract

The invention discloses a cast-in-situ oversized cantilever special-shaped structure template mounting structure and a construction method, comprising a bottom movable supporting platform; the upper end of the bottom movable supporting platform is connected with a scissor type telescopic joint; the lower end of the scissor type telescopic joint is connected with a hydraulic telescopic member rod; the scissor type telescopic joint drives the scissor type telescopic joint to extend up and down through a hydraulic telescopic component; the upper end of the scissor type telescopic joint is connected with a template supporting platform. According to the invention, the supporting device and the telescopic device are connected between the template supporting platform and the bottom movable supporting platform, so that the template is installed, and meanwhile, the template supporting device is simple in structure, easy to manufacture, simple in construction operation, high in efficiency, convenient to transport and capable of reducing construction cost.

Description

A cast-in-place super-large cantilevered special-shaped structure formwork installation structure and construction method

Technical field

The invention relates to the technical field of building construction, and in particular to a cast-in-place super-large cantilevered special-shaped structure formwork installation structure and construction method.

Background technique

At present, in the construction of construction projects, special-shaped building structures abound, such as cast-in-place super-cantilevered special-shaped structures. The CCTV Tower is a huge asymmetric cantilever structure. The appearance of the building is very similar to the traditional Chinese musical instrument "guqin"; Suzhou Oriental The Gate has been awarded as "China's most complex super high-rise building", China's tallest street-crossing Tianhe, and the highest aerial Soviet-style garden; the height of modern buildings is higher than the sky, more novel than nature, and outstanding in its unique and novel shape. Hidden behind these are various building structures with complex structures, overhangs, special shapes, etc., which make construction more and more difficult, such as the complexity of the formwork installation and construction process. The complex aspects include: the shaping of the formwork. , the fixation of the formwork, the support stability and firmness of the formwork, the management and control during the construction process are difficult, and the construction operation is not easy for workers.

Contents of the invention

The purpose of the present invention is to propose a cast-in-place super-large cantilever special-shaped structure formwork installation structure and construction method in order to solve the problems in the prior art.

In order to achieve the above objects, the present invention adopts the following technical solutions:

A cast-in-place super large cantilever special-shaped structure formwork installation structure, including a bottom mobile support platform; the upper end of the bottom mobile support platform is connected to a scissor-type telescopic section; the lower end of the scissor-type telescopic section is connected to a hydraulic telescopic member rod; the scissors The scissor-type telescopic joint is driven up and down by hydraulic telescopic components; the upper end of the scissor-type telescopic joint is connected to a formwork support platform.

Preferably, the lower end of the bottom mobile support platform is connected to a roller; the lower end of the roller is connected to an I-beam track; and the roller is provided with a slot that matches the I-beam track.

Preferably, the scissor-type telescopic joint includes two support rods; a bearing is connected between the two support rods; there are two scissor-type telescopic joints; and the two scissor-type telescopic joints are connected with a bearing. Rotating shaft; the two scissor telescopic joints telescope up and down through bearings and rotating shafts.

Preferably, the hydraulic telescopic component includes a fixed end and a telescopic end; the upper end of the telescopic end is fixedly connected to the lower end of the formwork support platform.

Preferably, a guide rod is connected between the template support platform and the bottom mobile support platform; there are four guide rods; and the guide rods are respectively arranged at the corners of the bottom mobile support platform.

Preferably, the formwork support platform and the bottom mobile support platform are made of square tubes welded into frames; steel plates are laid inside the square tubes.

The present invention also proposes a construction method for installing a cast-in-place super-large cantilevered special-shaped structure formwork installation structure, which includes the following steps:

Step 1: Lay two I-beam rails on the ground, and four slotted rollers run back and forth on the I-beam rails to adjust the position of the required formwork;

Step 2: Place the installation formwork on the formwork support platform, and use the expansion and contraction of the hydraulic telescopic component to drive the scissor-type expansion joint up and down to adjust the height of the formwork support platform;

Step 3: At the same time, the guide rod moves downward, and the guide rod and scissor-type telescopic joint make the formwork support platform move in a balanced and stable manner;

Step 4: After the installation is completed, use the slotted rollers to walk on the I-beam track 1.

Compared with the existing technology, the present invention provides a cast-in-place super-large cantilevered special-shaped structure formwork installation structure and construction method, which has the following beneficial effects:

1. The installation structure and construction method of this cast-in-place super large cantilevered special-shaped structure formwork is to complete the installation of the formwork by connecting the support device and the telescopic device between the formwork support platform and the bottom mobile support platform. At the same time, the structure is simple, easy to manufacture and construction operation Simple, high efficiency, convenient transportation, reducing construction costs.

2. The installation structure and construction method of the cast-in-place super large cantilevered special-shaped structure formwork, by connecting scissor-type expansion joints and guide rods and other support structures between the formwork support platform and the bottom mobile support platform, make the formwork installation process more stable, and then It can move up and down driven by a hydraulic telescopic rod.

The uninvolved parts of the device are the same as the existing technology or can be implemented using the existing technology. The present invention has a simple structure and is easy to operate.

Description of the drawings

Figure 1 is a schematic structural diagram of the present invention;

Figure 2 is a side view of the present invention;

Figure 3 is a schematic structural diagram of another embodiment of the present invention.

In the picture: 1 I-beam track, 2 rollers, 3 scissor telescopic joints, 4 hydraulic telescopic rods, 41 fixed end, 42 telescopic end, 5 template support platform, 6 bottom mobile support platform, 7 rotating shaft, 8 bearings, 9 guide Rod.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", " The orientation or positional relationship indicated by "outside" and so on is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation. Specific orientations of construction and operation are therefore not to be construed as limitations of the invention.

Example 1:

Referring to Figures 1-2, a cast-in-place super large cantilevered special-shaped structure formwork installation structure includes a bottom mobile support platform 6; the upper end of the bottom mobile support platform 6 is connected to a scissor-type telescopic section 3; the scissor-type telescopic section 3 includes Two support rods; a bearing 8 is connected between the two support rods; there are two scissor-type telescopic joints 3; and a rotating shaft 7 is connected between the two scissor-type telescopic joints 3; the two scissor-type telescopic joints 3 are connected with each other; The scissor telescopic joint 3 telescopes up and down through the bearing 8 and the rotating shaft 7; the lower end of the scissor telescopic joint 3 is connected to a hydraulic telescopic member rod 4; the hydraulic telescopic member 4 includes a fixed end 41 and a telescopic end 42; the telescopic end 42 The upper end is fixedly connected to the lower end of the formwork support platform 5; the scissor-type telescopic joint 3 is driven up and down by the hydraulic telescopic component 4; the upper end of the scissor-type telescopic joint 3 is connected to the formwork support platform 5. The formwork support platform 5 and the bottom mobile support platform 6 are both made of square tubes welded into frames; steel plates are laid inside the square tubes.

The lower end of the bottom mobile support platform 6 is connected to a roller 2; the lower end of the roller 2 is connected to an I-beam track 1; the roller 2 is provided with a slot that matches the I-beam track 1. The rollers 2 move within the I-beam track 1 to ensure the overall balanced movement, and the scissor telescopic joints 3 are used to support the formwork support platform 5 and the bottom mobile support platform 6 to make the formwork support platform 5 more balanced and stable. .

Example 2:

On the basis of the above embodiment, with reference to Figure 3, guide rods 9 are connected between the template support platform 5 and the bottom mobile support platform 6; there are four guide rods 9; and the guide rods 9 are respectively provided Move the corner of the support platform 6 at the bottom.

By arranging four guide rods 9, the formwork support platform 5 is kept in a horizontal state when it moves up and down, thereby preventing the formwork support platform 5 from tilting during the rising process, causing the formwork to slip.

Embodiment three:

The present invention also proposes a construction method for installing a cast-in-place super-large cantilevered special-shaped structure formwork installation structure, which includes the following steps:

Step 1: Lay two I-beam rails 1 on the ground, and four slotted rollers 2 run back and forth on the I-beam rails 1 to adjust the position of the required formwork;

Step 2: Place the installation formwork on the formwork support platform 5, and use the expansion and contraction of the hydraulic telescopic member 4 to drive the scissor-type telescopic section 3 up and down to adjust the height of the formwork support platform 5;

Step 3: At the same time, the guide rod 9 moves downward, and the guide rod 9 and the scissor telescopic joint 3 make the formwork support platform 5 move in a balanced and stable manner;

Step 4: After the installation is completed, use the slotted roller 2 to walk on the I-beam track 1.

The above are only preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person familiar with the technical field can, within the technical scope disclosed in the present invention, implement the technical solutions of the present invention. Equivalent substitutions or changes of the inventive concept thereof shall be included in the protection scope of the present invention.

Claims (7)

1. A cast-in-place super-large cantilevered special-shaped structure formwork installation structure, characterized in that it includes a bottom movable support platform (6); the upper end of the bottom movable support platform (6) is connected to a scissor-type telescopic joint (3); The lower end of the scissor-type telescopic joint (3) is connected to a hydraulic telescopic member rod (4); the scissor-type telescopic joint (3) is driven up and down by the hydraulic telescopic member (4); the upper end of the scissor-type telescopic joint (3) is connected to a Formwork support platform (5). 2. A cast-in-place super-large cantilevered special-shaped structure formwork installation structure according to claim 1, characterized in that the lower end of the bottom mobile support platform (6) is connected with a roller (2); the lower end of the roller (2) An I-beam track (1) is connected; the roller (2) is provided with a slot that matches the I-beam track (1). 3. A cast-in-place super-large cantilevered special-shaped structure formwork installation structure according to claim 1, characterized in that the scissor-type telescopic joint (3) includes two support rods; the two support rods are connected in the middle. Bearing (8); there are two scissor-type telescopic joints (3); and a rotating shaft (7) is connected between the two scissor-type telescopic joints (3); the two scissor-type telescopic joints (3) ) expands and contracts up and down through the bearing (8) and the rotating shaft (7). 4. A cast-in-place super-large cantilever special-shaped structure formwork installation structure according to claim 1, characterized in that the hydraulic telescopic component (4) includes a fixed end (41) and a telescopic end (42); The upper end of the end (42) is fixedly connected to the lower end of the formwork support platform (5). 5. A cast-in-place super-large cantilevered special-shaped structure formwork installation structure according to claim 1, characterized in that a guide rod (9) is connected between the formwork support platform (5) and the bottom mobile support platform (6) ); there are four guide rods (9); and the guide rods (9) are respectively installed at the corners of the bottom mobile support platform (6). 6. A cast-in-place super-large cantilever special-shaped formwork installation structure according to claim 1, characterized in that the formwork support platform (5) and the bottom mobile support platform (6) are both made of square tubes welded into frames; Steel plates are laid inside the square tube. 7. The construction method of the cast-in-place super-large cantilevered special-shaped structure formwork installation structure according to claim 1, characterized in that it includes the following steps: Step 1: Lay two I-beam rails (1) on the ground, and four slotted rollers (2) run back and forth on the I-beam rails (1) to adjust the position of the required formwork; Step 2: Place the installation formwork on the formwork support platform (5), and use the hydraulic telescopic component (4) to telescopically drive the scissor-type telescopic joint (3) up and down to adjust the height of the formwork support platform (5); Step 3: At the same time, the guide rod (9) moves downward, and the guide rod (9) and the scissor-type telescopic joint (3) make the formwork support platform (5) move in a balanced and stable manner; Step 4: After the installation is completed, use the slotted rollers (2) to walk on the I-beam track (1).