Formwork-free supporting system for PCTF system prefabricated cantilever plate

Abstract

The utility model relates to a formwork-erecting-free supporting system for a PCTF system prefabricated cantilever plate, which comprises at least two vertical supporting frames, connecting feet are arranged on the inner sides of the vertical supporting frames, the vertical supporting frames are connected to an upper opening and a lower opening of a prefabricated wallboard windowsill through the connecting feet, and the upper opening and the lower opening of the prefabricated wallboard windowsill are connected through the connecting feet. The top end of the vertical supporting frame is provided with a plane used for supporting the prefabricated cantilever structure. According to the formwork-erecting-free supporting system for the PCTF system prefabricated cantilever plate, the vertical supporting frames are installed at the upper opening and the lower opening of the windowsill, installation personnel can conduct installation by vertically supporting the cantilever member under the condition that the installation personnel are completely in a room, and therefore the situation that in the prior art, installation is not convenient is avoided. The safety risk caused by construction and installation by constructors through the safety rope is avoided, and the construction safety of the constructors is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a formwork-free support system for a precast cantilever slab of a PCTF system. Background Art

[0002] With the continuous application and innovation of precast structures in building construction, various precast forms emerge in an endless stream. Among them, the PCTF system (precast thermal insulation composite wall panel structure system), as a new precast structure system, is gradually more applied to physical projects. Since the PCTF system adopts a construction form without an external scaffold, the safety problem of edge operations is inevitably encountered during the construction of precast structures. Especially for some cantilever components (such as precast air-conditioning panels, etc.), before the integral formation between the cantilever component and the cast-in-place structure, the lower part of the cantilever component is usually supported by a bent frame of ordinary steel pipes for back topping, and the bent frame is removed after the concrete in the cast-in-place section reaches a certain strength. During the operation of the bent frame erection, there is a lack of edge safety protection for personnel, and only a simple safety rope, so it will bring great construction safety hazards to construction workers. Content of the Utility Model

[0003] The technical solution specifically adopted by the utility model for the above problems is: a formwork-free support system for a precast cantilever slab of a PCTF system, including: at least two vertical support frames, a connecting foot is arranged inside the vertical support frame, and the vertical support frame is connected to the upper and lower openings of the precast wall panel window sill through the connecting foot, and the top end of the vertical support frame has a plane for supporting the precast cantilever structure.

[0004] Further improved, a coupler is respectively reserved at the upper and lower openings of the precast wall panel window sill, and the connecting foot is fixedly connected to the coupler.

[0005] Further improved, the vertical support frame includes a vertical rod, a horizontal rod and an inclined rod, and the vertical rod, the horizontal rod and the inclined rod are connected end to end to form a right triangle structure.

[0006] Further improved, a reinforcing rod is arranged inside the vertical support frame, one end of the reinforcing rod is fixed at the connection between the horizontal rod and the vertical rod, and the other end of the reinforcing rod is connected to the inclined rod.

[0007] Further improved, the connection between the reinforcing rod and the inclined rod is located at the middle of the inclined rod.

[0008] Further improved, the reinforcing rod is at least one.

[0009] The beneficial effects of the utility model are:

[0010] The formwork-free support system for precast cantilever slabs in the PCTF system provided by the present utility model has vertical support frames installed at the upper and lower openings of the window sill. Installation personnel can install the vertical support of the cantilever member completely indoors, thus avoiding the safety risks brought by construction workers having to use safety ropes for construction installation in the prior art and ensuring the construction safety of construction workers. Description of the Drawings

[0011] The present utility model will be further described below in conjunction with the drawings and embodiments:

[0012] Figure 1 It is a schematic structural diagram of the formwork-free support system for precast cantilever slabs in the PCTF system of the present utility model;

[0013] Figure 2 It is a schematic side view of the formwork-free support system for precast cantilever slabs in the PCTF system of the present utility model Detailed Description of the Specific Embodiment

[0014] Now, the present utility model will be further described in detail with reference to the drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0015] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the utility model.

[0016] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the utility model, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0017] In a utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "linkage", "fixation" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0018] As Figure 1 and Figure 2 shown, the present utility model provides a formwork-free support system for a precast cantilever slab in a PCTF system, including: at least two vertical support frames 1, which are welded by angle steel or square steel and support a precast cantilever structure (such as a precast air-conditioning board, etc.) at the top by arranging at least two side by side. A connecting foot 11 extending towards the building is fixedly installed on the inner side (i.e., the side close to the building) of the vertical support frame 1. During construction, the construction workers are inside the building and connect and fix the vertical support frame 1 to the upper and lower openings of the precast wall panel window sill 100 through the connecting foot 11 at the window. The top end of the vertical support frame 1 has a plane for supporting the precast cantilever structure 200.

[0019] For the formwork-free support system for a precast cantilever slab in the PCTF system provided by the present utility model, the vertical support frames are installed at the upper and lower openings of the window sill. When installing, the installers can completely carry out the installation of the vertical support of the cantilever component inside the room, thus avoiding the safety risks brought by the need for construction workers to use safety ropes for construction installation in the prior art and ensuring the construction safety of the construction workers.

[0020] In order to facilitate the connection and fixation of the vertical support frame 1, a further improvement of this technical solution is that connectors 2 are respectively reserved at the upper and lower openings of the precast wall panel window sill 100. The connector 2 has an external thread. Correspondingly, the connecting foot 11 has a through hole for facilitating the insertion of the connector 2. During installation, the connecting foot 11 is sleeved on the connector 2, and then the connecting foot 11 and the connector 2 are tightly connected together by a nut.

[0021] A further improvement is that the vertical support frame 1 is welded by angle steel or square steel. The vertical support frame 1 includes a vertical rod 12, a horizontal rod 13 and an inclined rod 14. The vertical rod 12, the horizontal rod 13 and the inclined rod 14 are connected end to end to form a right triangle structure. Among them, the vertical rod 12 is close to the building, the horizontal rod 13 is used to support the cantilever component, and the top end of the inclined rod 14 inclines outwards. The vertical support frame 1 with a triangular structure is more stable and forms a stable and strong support for the cantilever component.

[0022] To prevent the diagonal rod from deforming in the middle under compression, a further improvement of this technical solution is that a reinforcing rod 15 is provided inside the vertical support frame 1. The reinforcing rod 15 is a square steel or an angle steel. One end of the reinforcing rod 15 is fixed to the connection between the cross bar 13 and the vertical bar 12 by welding, and the other end of the reinforcing rod 15 is fixedly connected to the diagonal rod 14 by welding.

[0023] To improve the support strength of the diagonal rod and the structural stability of the vertical support frame, a further improvement of this technical solution is that the connection between the reinforcing rod 15 and the diagonal rod 14 is located in the middle of the diagonal rod 14.

[0024] A further improvement is that the reinforcing rod 15 is at least one.

[0025] Inspired by the ideal embodiments of the present invention described above, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A formwork-free support system for precast cantilever slabs in the PCTF system, characterized in that, Comprising: At least two vertical support frames, wherein connection feet are arranged inside the vertical support frames, and the vertical support frames are connected to the upper and lower openings of the window sill of the precast wall panel through the connection feet, and the top of the vertical support frame has a plane for supporting the precast cantilever structure.

2. The formwork-free support system for the precast cantilever slab in the PCTF system according to claim 1, characterized in that, Connector receptacles are respectively reserved at the upper and lower openings of the window sill of the precast wall panel, and the connection feet are fixedly connected to the connector receptacles.

3. The formwork-free support system for the precast cantilever slab used in the PCTF system according to claim 1, characterized in that, The vertical support frame comprises a vertical rod, a horizontal rod and an inclined rod, and the vertical rod, the horizontal rod and the inclined rod are connected end to end to form a right triangle structure.

4. The formwork-free support system for the precast cantilever slab used in the PCTF system according to claim 3, characterized in that, A reinforcing rod is arranged inside the vertical support frame, one end of the reinforcing rod is fixed at the connection of the horizontal rod and the vertical rod, and the other end of the reinforcing rod is connected to the inclined rod.

5. The formwork-free support system for prefabricated cantilever slabs in the PCTF system according to claim 4, characterized in that, The connection position of the reinforcing rod and the inclined rod is located at the middle of the inclined rod.

6. The formwork-free support system for the precast cantilever slab in the PCTF system according to claim 4, characterized in that, There is at least one reinforcing rod.

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