Large-size assembled cavity column free-supporting device

Abstract

The utility model relates to a kind of large-size assembly cavity column free-supporting device. Including reinforcement cage and the concrete shell of square tube shape in the reinforcement cage outside, the concrete shell is enclosed by 4 side walls;Multiple first pull structures are equipped between front side wall and rear side wall, multiple second pull structures are equipped between left side wall and right side wall;First pull structure includes front plate buried in front side wall, rear plate buried in rear side wall, and multiple first connecting rods spaced distribution along the width direction of front side wall;Second pull structure includes left plate buried in left side wall, right plate buried in right side wall, and multiple second connecting rods spaced distribution along the width direction of left side wall. The utility model sets up pull structure in the way of pre-buried, with pull structure when cavity column factory, without installing and removing pull screw rod in construction site, save construction time, and will not appear due to removal pull screw rod and cause damage phenomenon to the outer surface of cavity column.

Description

Technical Field

[0001] This utility model relates to a large-size prefabricated hollow column support-free device. Background Technology

[0002] Prefabricated hollow columns typically consist of a reinforcing cage and a rectangular concrete shell enclosing the cage. This concrete shell is formed by a front side wall, a left side wall, a rear side wall, and a right side wall. After the hollow column is installed on site, concrete needs to be poured into its hollow interior. To increase the strength of the concrete shell and withstand the lateral pressure from the filling concrete, especially for large-sized prefabricated hollow columns (e.g., 800mm x 800mm and above), tie rods are usually inserted between the opposite side walls of the concrete shell to provide support.

[0003] For example, Chinese invention patent application CN 117432134 A discloses a prefabricated cement-based composite molded column (i.e., a hollow column), which uses tie rods to apply pre-tightening force to the mold (i.e., the concrete shell) to strengthen the mold, and uses the tie rods as fixing points for lateral support. After the concrete pouring is completed, the tie rods need to be removed.

[0004] This method of installing and removing tie rods on-site is not only time-consuming, but also affects the appearance of the hollow column. Utility Model Content

[0005] The purpose of this utility model is to provide a large-size prefabricated hollow column supportless device, including a reinforcing cage and a square-cylindrical concrete shell surrounding the reinforcing cage. The concrete shell is formed by four side walls: a front side wall, a left side wall, a rear side wall, and a right side wall. The front side wall is parallel to the rear side wall, and the left side wall is parallel to the right side wall. Multiple first tie structures are provided between the front and rear side walls, spaced apart along the height direction of the front side wall. Multiple second tie structures are provided between the left and right side walls, spaced apart along the height direction of the left side wall. The two-pair structure includes: the first pair of pull structures includes a front plate embedded in the front sidewall, a rear plate embedded in the rear sidewall, and multiple first connecting rods spaced apart along the width direction of the front sidewall, one end of each first connecting rod being fixedly connected to the front plate and the other end of each first connecting rod being fixedly connected to the rear plate; the second pair of pull structures includes a left plate embedded in the left sidewall, a right plate embedded in the right sidewall, and multiple second connecting rods spaced apart along the width direction of the left sidewall, one end of each second connecting rod being fixedly connected to the left plate and the other end of each second connecting rod being fixedly connected to the right plate.

[0006] This utility model adopts a pre-embedded tie rod structure, which is installed with the tie rod when the cavity column leaves the factory. This eliminates the need to install and remove the tie rods on the construction site, saving construction time and preventing damage to the outer surface of the cavity column caused by removing the tie rods. Attached Figure Description

[0007] Figure 1 A perspective view of the present invention is shown;

[0008] Figure 2 An exploded perspective view of this utility model is shown;

[0009] Figure 3 A schematic diagram of the first tie structure and the corner brace embedded in the concrete shell is shown;

[0010] Figure 4 A schematic diagram of the second tie structure embedded in the concrete shell is shown;

[0011] Figure 5 A three-dimensional view of the first tie structure is shown;

[0012] Figure 6 A three-dimensional view of the second tie structure is shown;

[0013] Figure 7 A three-dimensional diagram of the gusset is shown.

[0014] Icon labels:

[0015] 10 Reinforcing cage; 20 Concrete shell, 201 Front side wall, 202 Left side wall, 203 Rear side wall, 204 Right side wall; 30 First tie structure, 301 Front plate, 302 Rear plate, 303 First connecting rod; 40 Second tie structure, 401 Left plate, 402 Right plate, 403 Second connecting rod; 50 Corner brace, 501 Side plate, 502 Rib plate. Detailed Implementation

[0016] The following description, in conjunction with the accompanying drawings, further illustrates the proposed solution.

[0017] like Figures 1 to 7 The large-size prefabricated hollow column supportless device shown includes a steel cage 10 and a square-cylindrical concrete shell 20 surrounding the steel cage 10. The concrete shell 20 is formed by four side walls, namely a front side wall 201, a left side wall 202, a rear side wall 203 and a right side wall 204. The front side wall 201 is parallel to the rear side wall 203, and the left side wall 202 is parallel to the right side wall 204.

[0018] A plurality of first tie structures 30 are provided between the front sidewall 201 and the rear sidewall 203, which are spaced apart along the height direction of the front sidewall. The first tie structure 30 includes a front plate 301 embedded in the front sidewall 201, a rear plate 302 embedded in the rear sidewall 203, and a plurality of first connecting rods 303 spaced apart along the width direction of the front sidewall. One end of each first connecting rod 303 is fixedly connected to the front plate 301, and the other end of each first connecting rod 303 is fixedly connected to the rear plate 302.

[0019] A plurality of second tie structures 40 are provided between the left side wall 202 and the right side wall 204, which are spaced apart along the height direction of the left side wall. The second tie structure 40 includes a left plate 401 embedded in the left side wall 202, a right plate 402 embedded in the right side wall 204, and a plurality of second connecting rods 403 spaced apart along the width direction of the left side wall. One end of each second connecting rod 403 is fixedly connected to the left plate 401, and the other end of each second connecting rod 403 is fixedly connected to the right plate 402.

[0020] This technical solution employs a pre-embedded tie rod structure, meaning the hollow column comes pre-installed with the tie rods at the factory. This eliminates the need for on-site installation and removal of the tie rods, saving construction time and preventing damage to the outer surface of the hollow column caused by tie rod removal. The "no-support" feature mentioned in this embodiment refers to the elimination of the need for on-site installation of tie rods to support the side walls of the concrete shell.

[0021] Each first connecting rod 303 passes through the steel cage 10, and each first connecting rod 303 is fixedly connected to the steel cage 10;

[0022] Each second connecting rod 403 passes through the steel cage 10, and each second connecting rod 403 is fixedly connected to the steel cage 10.

[0023] This technical solution enables the positioning of the tension structure and also improves the strength of the tension structure and the concrete shell.

[0024] The fixed connection described in this embodiment can be, for example, welding, binding, or connection using threaded fasteners.

[0025] At the intersection of two adjacent sidewalls, there are multiple corner braces 50 that are spaced apart along the length of the edge.

[0026] Each corner brace 50 includes two mutually perpendicular side plates 501 and a rib plate 502 connecting the two side plates 501. In this embodiment, Figure 7 It is shown that there are two ribs 502, which are distributed vertically at intervals;

[0027] In two adjacent side walls, the two side plates 501 of the corner brace 50 are respectively embedded in one side wall, and the rib plate 502 of the corner brace protrudes from the two side walls and extends into the hollow part of the concrete shell 20. The rib plate 502 of the corner brace is fixedly connected to the steel cage 10.

[0028] This technical solution can further enhance the concrete shell by setting up corner braces.

[0029] In this embodiment, before forming the concrete shell, all the first tie structures 30, the second tie structures 40, and the corner braces 50 are first erected. The first connecting rod of the first tie structure and the second connecting rod of the second tie structure both pass through the reinforcing cage, and the first connecting rod, the second connecting rod, and the ribs of the corner braces are fixedly connected to the reinforcing cage respectively. After that, the concrete shell is poured and formed. The method of pouring and forming the concrete shell can use existing technology, which will not be described in detail here.

[0030] In this embodiment, the first tie structure, the second tie structure, and the corner brace are all made of steel.

Claims

1. A large-size prefabricated hollow column support-free device, comprising a reinforcing cage and a square-cylindrical concrete shell surrounding the reinforcing cage, wherein the concrete shell is formed by four side walls, the four side walls being a front side wall, a left side wall, a rear side wall, and a right side wall, wherein, The front and rear sidewalls are parallel, and the left and right sidewalls are parallel. A plurality of first tension structures are provided between the front and rear sidewalls, spaced apart along the height direction of the front sidewall. A plurality of second tension structures are provided between the left and right sidewalls, spaced apart along the height direction of the left sidewall. The feature is that: The first tie structure includes a front plate embedded in the front sidewall, a rear plate embedded in the rear sidewall, and a plurality of first connecting rods spaced apart along the width direction of the front sidewall. One end of each first connecting rod is fixedly connected to the front plate, and the other end of each first connecting rod is fixedly connected to the rear plate. The second tie structure includes a left plate embedded in the left side wall, a right plate embedded in the right side wall, and multiple second connecting rods spaced apart along the width direction of the left side wall. One end of each second connecting rod is fixedly connected to the left plate, and the other end of each second connecting rod is fixedly connected to the right plate.

2. The large-size prefabricated cavity column support-free device according to claim 1, characterized in that: Each first connecting rod passes through the reinforcing cage, and each first connecting rod is fixedly connected to the reinforcing cage; Each second connecting rod passes through the reinforcing cage, and each second connecting rod is fixedly connected to the reinforcing cage.

3. A large-size prefabricated cavity column support-free device according to claim 1 or 2, characterized in that: At the intersection of two adjacent sidewalls, there are multiple corner braces spaced apart along the length of the edge. Each corner brace includes two mutually perpendicular side plates and a rib plate connecting the two side plates; In two adjacent sidewalls, the two side plates of the corner brace are embedded in one sidewall respectively. The ribs of the corner brace protrude from the two sidewalls and extend into the hollow part of the concrete shell. The ribs of the corner brace are fixedly connected to the steel cage.

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