Formwork special for cast-in-place concrete constructional column of building facade

Abstract

The utility model is applied to the field of concrete constructional column templates, in particular to a special template for a cast-in-place concrete constructional column of a building facade, which comprises a composite plastic plate and a wooden plate, an accommodating space for accommodating concrete is arranged between the composite plastic plate and the wooden plate, and the composite plastic plate comprises a plastic layer, a separating layer and a lubricating layer. The plastic layer, the separation layer and the lubricating layer are sequentially distributed from outside to inside, the separation layer and the plastic layer are connected in a bonding mode and bonded through low-viscosity glue, the separation layer is made of fibers or thin films, after concrete is solidified, the plastic layer is directly detached, the detaching speed of the plastic layer is increased, and therefore the construction efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of concrete structural column formwork technology, specifically a special formwork for cast-in-place concrete structural columns on building facades. Background Technology

[0002] With the development of society and economy, people have higher and higher requirements for the aesthetics of buildings, resulting in a number of buildings with unique shapes and novel appearances. For example, in order to enhance the modern technological style of industrial plants, concrete structural columns are usually set on the exterior facade of the plant. During the construction of the plant, the concrete structural columns are usually assembled using wooden formwork. The specific construction process is as follows: (1) Cut plywood and timber according to the size and shape of the concrete structural columns; (2) Base treatment and steel bar binding; (3) Assemble and reinforce the cut plywood and timber, and connect them with the surrounding wall formwork to form a whole; (4) Pour concrete and vibrate it to make it dense; (5) Curing; (6) Removal of formwork. However, this approach has the following problems: low construction efficiency, the need for manual cutting, adjustment and reinforcement of wooden formwork, and a complicated installation and removal process. Utility Model Content

[0003] The purpose of this utility model is to provide a special formwork for cast-in-place concrete structural columns on building facades, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a special formwork for cast-in-place concrete structural columns on building facades, characterized in that: it includes a composite plastic board and a wooden board, with a receiving space for accommodating concrete provided between the composite plastic board and the wooden board, the composite plastic board including a plastic layer, a separation layer and a lubricating layer, the plastic layer, the separation layer and the lubricating layer being distributed sequentially from the outside to the inside, the separation layer and the plastic layer being bonded together, and the separation layer being made of fiber or film.

[0005] Preferably, the composite plastic board and the wooden board are respectively provided with a first screw hole and a second screw hole, the first screw hole and the second screw hole are connected, a second reinforcing rib is provided between the composite plastic board and the wooden board, both ends of the second reinforcing rib are provided with threads, and both ends of the second reinforcing rib pass through the first screw hole and the second screw hole respectively.

[0006] Preferably, the second reinforcing ribs are respectively provided with baffles for limiting the composite plastic board and the wooden board at both ends, and the second reinforcing ribs are respectively provided with fixed nuts at both ends of the baffles.

[0007] Preferably, both sides of the composite plastic board and the wooden board are provided with connecting plates, and the connecting plates are all U-shaped. The protrusions on both sides of the connecting plates are provided with connecting screw holes. The two ends of the composite plastic board are provided with first fixing screw holes, and the two ends of the wooden board are provided with second fixing screw holes. The two first fixing screw holes and the two second fixing screw holes are respectively connected to the four connecting screw holes. One end of the connecting plate is threadedly connected by a bolt, a first fixing screw hole and a connecting screw hole, and the other end of the connecting plate is threadedly connected by a bolt, a second fixing screw hole and a connecting screw hole.

[0008] Preferably, a plurality of first reinforcing ribs are arranged in the accommodating space between the composite plastic board and the wooden board.

[0009] Preferably, the first reinforcing rib includes a longitudinal reinforcing rib and a transverse reinforcing rib.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. A special formwork for cast-in-place concrete structural columns on the exterior facade of a building, comprising a composite plastic board and a wooden board, wherein a space for accommodating concrete is provided between the composite plastic board and the wooden board, the composite plastic board comprising a plastic layer, a release layer and a lubricating layer, the plastic layer, the release layer and the lubricating layer being distributed sequentially from the outside to the inside, the release layer and the plastic layer being bonded together by a low-viscosity adhesive, the release layer being made of fiber or film, and the plastic layer being directly removed after the concrete has solidified, thereby improving the removal speed of the plastic layer and thus improving construction efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the composite plastic sheet described in this utility model;

[0014] Figure 3 for Figure 1 Enlarged view of A in the middle;

[0015] In the figure: composite plastic board 1, plastic layer 11, separation layer 12, lubrication layer 13, first screw hole 14, first fixing screw hole 15, wooden board 2, second screw hole 21, second fixing screw hole 22, baffle 3, fixing nut 4, connecting plate 5, connecting screw hole 51, first reinforcing rib 6, second reinforcing rib 7. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown are for the convenience of describing this utility model and simplifying the description only, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example 1

[0019] like Figures 1 to 3 As shown in the figure, this embodiment provides a special formwork for cast-in-place concrete structural columns on the exterior of a building. Its features include: a composite plastic board 1 and a wooden board 2, with a space between the composite plastic board 1 and the wooden board 2 for accommodating concrete; the two sides of the composite plastic board and the wooden board 2 are sealed with double-layer foam adhesive or similar materials, thereby improving the airtightness between the composite plastic board 1 and the wooden board 2 and preventing grout leakage; the composite plastic board 1 includes a plastic layer 11, a separation layer 12, and a lubrication layer 13, which are distributed sequentially from the outside to the inside; the separation layer 12 and the plastic layer 11 are bonded together using a low-viscosity adhesive; the separation layer 12 is made of fiber or film; after the concrete has solidified, the plastic layer 11 can be directly removed, increasing the disassembly speed of the plastic layer 11 and thus improving construction efficiency.

[0020] Furthermore, the composite plastic board 1 and the wooden board 2 are respectively provided with a plurality of first screw holes 14 and a plurality of second screw holes 21. The number of first screw holes 14 and the number of second screw holes 21 correspond to each other and are connected one-to-one. A second reinforcing rib 7 corresponding to the number of first screw holes 14 is provided between the composite plastic board 1 and the wooden board 2. Both ends of the second reinforcing rib 7 are provided with threads. The two ends of one second reinforcing rib 7 pass through a corresponding first screw hole 14 and a second screw hole 21, respectively. The concentrated load is distributed and transferred to a wider area through the second reinforcing rib 7. This reduces local stress levels and improves the load-bearing capacity of the building structure. The second reinforcing rib 7 protrudes from both ends of the composite plastic board 1 and the wooden board 2, and is fitted with baffles 3 for limiting the composite plastic board 1 and the wooden board 2. The second reinforcing rib 7 protrudes from both ends of the baffles 3 and is threaded with fixing nuts 4. By limiting the composite plastic board 1 and the wooden board 2 through several baffles 3, displacement of the composite plastic board 1 and the wooden board 2 caused by the pushing force of the concrete is avoided during concrete pouring, thereby improving the distance accuracy between the composite plastic board 1 and the wooden board 2.

[0021] Furthermore, a plurality of first reinforcing ribs 6 are arranged in the accommodating space between the composite plastic board 1 and the wooden board 2. The first reinforcing ribs 6 include longitudinal reinforcing ribs and transverse reinforcing ribs. The concentrated load is dispersed by the first reinforcing ribs 6 and transferred to a wider area, thereby reducing the local stress level and improving the load-bearing capacity of the building structure. Example 2

[0022] The difference between Example 2 and Example 1 is that: both sides of the composite plastic board 1 and the wooden board 2 are provided with connecting plates 5, which are U-shaped. The two protrusions on both sides of the connecting plates 5 are provided with connecting screw holes 51. The two ends of the composite plastic board 1 are provided with first fixing screw holes 15, and the two ends of the wooden board 2 are provided with second fixing screw holes 22. The two first fixing screw holes 15 and the two second fixing screw holes 22 are respectively connected to the four connecting screw holes 51. One end of the connecting plate 5 is threadedly connected by a bolt, a first fixing screw hole 15, and a connecting screw hole 51. The other end of the connecting plate 5 is threadedly connected by a bolt, a second fixing screw hole 22, and a connecting screw hole 51. The surface of the composite plastic board 1 and the surface of the wooden board 2 are respectively in contact with the inner surface of the two protrusions of the connecting plate 5. The composite plastic board 1, the wooden board 2, and the connecting plate 5 are threadedly connected by bolts, thereby realizing the overall connection of this utility model, improving the airtightness of the composite plastic board 1, the wooden board 2, and the two connecting plates 5, and thus avoiding the occurrence of grout leakage during concrete pouring.

[0023] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A special formwork for cast-in-place concrete structural columns on building facades, characterized in that: The material includes a composite plastic board (1) and a wood board (2), with a space for accommodating concrete between the composite plastic board (1) and the wood board (2). The composite plastic board (1) includes a plastic layer (11), a separation layer (12) and a lubricating layer (13), which are distributed sequentially from the outside to the inside. The separation layer (12) and the plastic layer (11) are bonded together. The separation layer (12) is made of fiber or film.

2. The special formwork for cast-in-place concrete structural columns on building facades according to claim 1, characterized in that: The composite plastic board (1) and the wooden board (2) are respectively provided with a number of first screw holes (14) and a number of second screw holes (21). The number of first screw holes (14) and the number of second screw holes (21) correspond to each other and are connected one by one. A second reinforcing rib (7) corresponding to the number of first screw holes (14) is provided between the composite plastic board (1) and the wooden board (2). Both ends of the second reinforcing rib (7) are provided with threads. The two ends of a second reinforcing rib (7) pass through a corresponding first screw hole (14) and a second screw hole (21).

3. A special formwork for cast-in-place concrete structural columns on building facades according to claim 2, characterized in that: The second reinforcing rib (7) protrudes from both ends of the composite plastic plate (1) and the wooden plate (2) and is fitted with baffles (3) for limiting the composite plastic plate (1) and the wooden plate (2). The second reinforcing rib (7) protrudes from both ends of the baffles (3) and is threaded with fixing nuts (4).

4. A special formwork for cast-in-place concrete structural columns on building facades according to claim 1, characterized in that: Both sides of the composite plastic board (1) and the wooden board (2) are provided with connecting plates (5). The connecting plates (5) are all U-shaped. The two protrusions of the connecting plates (5) are provided with connecting screw holes (51). The two ends of the composite plastic board (1) are provided with first fixing screw holes (15). The two ends of the wooden board (2) are provided with second fixing screw holes (22). The two first fixing screw holes (15) and the two second fixing screw holes (22) are respectively connected to the four connecting screw holes (51). One end of the connecting plate (5) is threadedly connected by a bolt, a first fixing screw hole (15) and a connecting screw hole (51). The other end of the connecting plate (5) is threadedly connected by a bolt, a second fixing screw hole (22) and a connecting screw hole (51).

5. A special formwork for cast-in-place concrete structural columns on building facades according to claim 1, characterized in that: Several first reinforcing ribs (6) are arranged in the accommodating space between the composite plastic board (1) and the wooden board (2).

6. A special formwork for cast-in-place concrete structural columns on building facades according to claim 5, characterized in that: The first reinforcing rib (6) includes longitudinal reinforcing ribs and transverse reinforcing ribs.

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