CN110439263A - Site concrete template system and construction method on a kind of dry wall - Google Patents

Abstract

The invention discloses a formwork system and a construction method for a cast-in-place component on a prefabricated wall. The formwork system for a cast-in-place component includes an internal formwork system arranged at one end of a component to be poured on a prefabricated wall, and a support system, and the support system has an accommodating space , the internal mold system is placed in the accommodating space and fixed with the support system, the end of the support system opposite to the prefabricated wall is provided with a connector, and the side wall of the prefabricated wall along the thickness direction is provided with a Through the accommodating cavity of the prefabricated wall, the connecting piece is supported in the accommodating cavity. The safety and stability of the cast-in-place component formwork on the prefabricated wall can be effectively improved by reserving the connectors of the accommodation cavity on the prefabricated wall panel to support the formwork system, and at the same time, the erection of the cast-in-place component formwork on the prefabricated wall can be facilitated. The accommodating cavity can be sealed after the pouring is completed.

Description

A formwork system and construction method for cast-in-place components on prefabricated walls

technical field

The invention belongs to the technical field of building construction, and in particular relates to a formwork system and a construction method of a cast-in-place component on a prefabricated wall.

Background technique

In the construction of cast-in-place column or cast-in-place beam formwork in traditional construction projects, the formwork is generally supported by tie rods. However, when the wall panels of the project are prefabricated and the prefabricated wall beams are all cast-in-place, the formwork of the cast-in-place beams is not easy to set up and fix. Or when there are cast-in-place columns on the side of the prefabricated wallboard of the project and need to support the formwork, because the width of the cast-in-place column is larger than that of the prefabricated wallboard, it is inconvenient to erect the formwork on the side of the cast-in-place column near the prefabricated wallboard. It is difficult to guarantee the safety and stability of the cast-in-place beam or cast-in-place column formwork only with the support of tie rods, and problems such as film burst and wall panel deviation are prone to occur.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, to provide a prefabricated wall that can effectively improve the safety and stability of the cast-in-place component formwork on the prefabricated wall, and facilitate the erection of the cast-in-place component formwork on the prefabricated wall. Formwork system and construction method of cast-in-place components.

In order to solve the problems of the technologies described above, the present invention adopts the following technical solutions:

A formwork system for cast-in-place components on a prefabricated wall, comprising an internal formwork system arranged at one end of the prefabricated wall to be poured, and a support system, the support system has an accommodating space, and the internal formwork system is placed in the accommodating In the space and fixed with the support system, the end of the support system opposite to the prefabricated wall is provided with a connector, and the side wall of the prefabricated wall along the thickness direction is provided with an accommodating cavity that runs through the prefabricated wall. The connecting piece is supported in the accommodating cavity.

The safety and stability of the cast-in-place component formwork on the prefabricated wall can be effectively improved by reserving the connectors of the accommodation cavity on the prefabricated wall panel to support the formwork system, and at the same time, the erection of the cast-in-place component formwork on the prefabricated wall can be facilitated. The accommodating cavity can be sealed after the pouring is completed.

As a further improvement of the above technical solution:

In order to improve the connection strength between the support system and the prefabricated wall, the cast-in-place component is a cast-in-place beam or a cast-in-place column, and multiple connectors and accommodating cavities are provided. The length direction is evenly distributed, and the connecting parts correspond to the accommodating cavities one by one.

As a specific structure of the support structure, the support system includes support structures separately arranged on both sides of the internal formwork system along the thickness direction of the prefabricated wall, the accommodation space is formed between the two support structures, and the connectors along the Both ends of the prefabricated wall in the thickness direction are respectively fixedly connected with corresponding supporting structures.

The supporting structure is a full frame constructed of steel pipes.

The two supporting structures are fixed with the internal mold system through paired tie rods.

In order to improve the connection strength between the support system and the inner mold system, a plurality of support blocks are connected between the inner mold system and the support structure. The supporting blocks are preferably wooden squares.

The cast-in-place component is a cast-in-place beam, the accommodating cavity is a through hole opened at the end of the prefabricated wall, and the connecting piece is a connecting steel pipe. The diameter of the through hole is preferably φ60mm, which can reduce the number of openings and facilitate later plugging.

The cast-in-place component is a cast-in-place beam, the accommodating cavity is a groove opened on the top of the prefabricated wall, and the connecting piece is a tie rod.

The cast-in-place component is a cast-in-place column, the accommodating cavity is a through hole opened on the side of the prefabricated wall, and the connecting piece is a connecting steel pipe.

The side of the internal mold system opposite to the connector is provided with a connection structure, and the two ends of the connection structure along the thickness direction of the prefabricated wall are respectively fixedly connected with the corresponding support structure.

As a general inventive concept, the present invention also provides a construction method of the above-mentioned prefabricated wall cast-in-place component formwork system, comprising the following steps:

S1: Set up the internal formwork system at one end of the prefabricated wall to be poured;

S2: Place the connecting piece in the accommodating cavity of the prefabricated wall, and then fix the connecting piece with the supporting system;

S3: Fixed internal mold system and support system.

Compared with the prior art, the present invention has the advantages of:

By reserving the connectors of the accommodating cavity to support the formwork system on the prefabricated wallboard, the safety and stability of the cast-in-place component formwork on the prefabricated wall can be effectively improved, thereby avoiding problems such as film explosion and wallboard deviation; at the same time, it can be convenient Erection of cast-in-place beam formwork on top of prefabricated walls.

Description of drawings

Fig. 1 is a structural schematic diagram of the cast-in-place beam formwork system on the prefabricated wall of embodiment 1.

FIG. 2 is a cross-sectional view along line A-A of FIG. 1 .

Fig. 3 is a structural schematic diagram of the cast-in-place beam formwork system on the prefabricated wall of embodiment 2.

Fig. 4 is a B-B sectional view of Fig. 3 .

Fig. 5 is a structural schematic diagram of the formwork system of the cast-in-place column on the prefabricated wall in embodiment 3.

Legend: 1. Prefabricated wall; 11. Accommodating cavity; 2. Internal mold system; 3. Supporting system; 31. Accommodating space; 32. Supporting structure; 33. Connecting structure; 4. Connecting piece; 5. Cast-in-place Beam; 6. Cast-in-place column; 7. Tie rod; 8. Support block; 9. Butterfly buckle; 10. Wooden wedge.

Detailed ways

The present invention will be further described below in conjunction with specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

Example 1:

As shown in FIG. 1 and FIG. 2 , the cast-in-place beam formwork system on the prefabricated wall of this embodiment, the cast-in-place beam formwork system is erected on the top of the prefabricated wall 1 .

The cast-in-place beam formwork system includes an internal formwork system 2 and a support system 3 .

The inner mold system 2 is erected by formwork to form a pouring cavity, and the cast-in-place beam 5 is formed after pouring concrete. The supporting system 3 includes supporting structures 32 arranged separately on both sides of the internal formwork system 2 along the thickness direction of the prefabricated wall 1 , and the supporting structures 32 are full hall frames constructed of steel pipes. An accommodating space 31 is formed between the two support structures 32, and the inner mold system 2 is placed in the accommodating space 31 and fixed with the supporting system 3 by a pair of tie rods 7 of φ18mm, and the two ends of the tie rods 7 are fastened with butterfly buckles 9. In addition, in order to improve the connection strength and stability, a plurality of support blocks 8 are connected between the inner mold system 2 and the support structure 32 . The preferred 50mm * 70mm wooden side of support block 8 .

One end of the support system 3 connected to the prefabricated wall 1 is provided with a connecting piece 4, and the side wall of the prefabricated wall 1 along the thickness direction is provided with an accommodating cavity 11 that runs through the prefabricated wall 1, and the distance between the accommodating cavity 11 and the top of the prefabricated wall 1 is About 100mm. The connecting piece 4 is supported in the accommodating cavity 11 . Two ends of the connecting piece 4 along the thickness direction of the prefabricated wall 1 are respectively fixedly connected to the corresponding supporting structures 32 . There are multiple connecting pieces 4 and accommodating chambers 11, and the multiple connecting pieces 4 are evenly distributed along the extension direction of the cast-in-place beam 5, and the distance between two adjacent connecting pieces is ≤1500mm. One to one correspondence.

The accommodating cavity 11 is a through hole opened on the top of the prefabricated wall 1, and the connecting piece 4 is a connecting steel pipe of φ48mm.

The cast-in-place beam formwork system can be fixed to the prefabricated wall through the above-mentioned structure, which can effectively improve the safety and stability of the cast-in-place component formwork on the prefabricated wall, thereby avoiding problems such as film bursting and wall plate deviation.

The construction method of the above-mentioned cast-in-place beam formwork system on the prefabricated wall comprises the following steps:

S1: Install the internal formwork system 2 on the upper end of the prefabricated wall;

S2: Pass the connecting piece 4 (connecting steel pipe) through the accommodating cavity 11 (through hole) at the top of the prefabricated wall 1, and then weld and fix the two ends of the connecting piece 4 to the corresponding supporting structure 32;

S3: After all the connecting steel pipes have set up the support structure 32 stably, then pass the tie rods 7 through the two support structures 32 and the internal mold system 2 in sequence along the thickness direction of the prefabricated wall 1, and fasten the two ends of the tie rods with butterfly buckles 9 .

S4: Insert the support block 8 (wooden square) between the inner mold system 2 and the support structure 32 .

After the pouring is completed, the cast-in-place beam formwork system is removed to obtain the cast-in-place beam 5 . The through holes on the prefabricated wall 1 are sealed with mud.

Example 2:

As shown in Figure 3 and Figure 4, the cast-in-place beam formwork system on the prefabricated wall of this embodiment is basically the same as that of Embodiment 1, the difference lies in:

The accommodating cavity 11 is a groove opened on the top of the prefabricated wall 1, and the connecting piece 4 is a tie rod.

The construction method of the cast-in-place beam formwork system on the prefabricated wall of this embodiment is basically the same as that of Embodiment 1, and will not be repeated here.

Example 3:

As shown in Figure 5, the cast-in-place column formwork system on the prefabricated wall of this embodiment is basically the same as that of Example 1, the difference is that the cast-in-place component is a cast-in-place column 6, and the cast-in-place column formwork system is erected on the prefabricated wall 1 side. Correspondingly, the accommodating cavity 11 (ie, the through hole) is opened on the side of the prefabricated wall 1 . Connecting steel pipe and internal mold system 2 are fixed by tapered wooden wedge 10, to improve stability.

In addition, in this embodiment, the side of the internal mold system 2 opposite to the connector 4 is provided with a connection structure 33 , and the two ends of the connection structure 33 along the thickness direction of the prefabricated wall 1 are respectively fixedly connected to the corresponding support structures 32 . The connection structure 33 is also a full frame built by steel pipes.

In this embodiment, the support structure 32 can be fixed to the floor slab to further improve the stability of the formwork system.

The above-mentioned construction method of the cast-in-place column formwork system on the prefabricated wall comprises the following steps:

S1: Install the internal formwork system 2 on the side end of the prefabricated wall;

S2: Pass the connecting piece 4 (connecting steel pipe) through the accommodating cavity 11 (through hole) on the side of the prefabricated wall 1, and the connecting piece 4 and the inner mold system 2 are fixed by the tapered wooden wedge 9. A plurality of connecting pieces 4 , two supporting structures 32 and connecting structures 33 are erected to form a full frame with accommodating spaces 31 .

S3: Pass part of the tie rods 7 sequentially through the two support mechanisms 32 and the inner mold system 2 along the thickness direction of the prefabricated wall 1, pass the remaining part of the tie rods 7 through the connecting piece, the inner mold system 2 and the connecting structure 33 in sequence, and tie the tie rods Both ends are fastened with butterfly buckles 9.

S4: Insert part of the support blocks 8 (wooden squares) between the inner mold system 2 and the support structure 32 , and the remaining support blocks 8 are inserted between the inner mold system 2 and the connecting structure 33 .

After the pouring is completed, the cast-in-place column formwork system is removed to obtain the cast-in-place column 6 . The through holes on the prefabricated wall 1 are sealed with mud.

The above is only a preferred embodiment of the application, and does not limit the application in any form. Although the application is disclosed as above with the preferred embodiment, it is not intended to limit the application. Any skilled person familiar with this field, Without departing from the scope of the technical solution of the present application, any changes or modifications made using the technical content disclosed above are equivalent to equivalent implementation cases, and all belong to the scope of the technical solution.

Claims (10)

1. a formwork system for cast-in-place components on a prefabricated wall, is characterized in that it comprises an internal mold system (2) located at one end of the prefabricated wall (1) to be poured, it is characterized in that it also comprises a support system (3), so The supporting system (3) has an accommodating space (31), the inner mold system (2) is placed in the accommodating space (31) and fixed with the supporting system (3), and the supporting system (3) ) is provided with a connecting piece (4) at the end opposite to the prefabricated wall (1), and an accommodating cavity (11) through the prefabricated wall (1) is provided on the side wall of the prefabricated wall (1) along the thickness direction, The connecting piece (4) is supported in the accommodating cavity (11). 2. the cast-in-place component formwork system on the prefabricated wall according to claim 1, wherein the cast-in-place component is a cast-in-place beam (5) or a cast-in-place column (6), and the connector (4) and Multiple accommodating cavities (11) are provided, and multiple connecting pieces (4) are evenly distributed along the length direction of the cast-in-place component, and the connecting pieces (4) correspond to the accommodating cavities (11) one by one. 3. The formwork system for cast-in-place components on the prefabricated wall according to claim 2, wherein the support system (3) includes two sides of the internal mold system (2) along the thickness direction of the prefabricated wall (1). The supporting structure (32), the accommodation space (31) is formed between the two supporting structures (32), and the two ends of the connecting piece (4) along the thickness direction of the prefabricated wall (1) are respectively connected with the corresponding supporting structure (32) fixed connection. 4. The formwork system for cast-in-place components on a prefabricated wall according to claim 3, characterized in that, the supporting structure (32) is a full-height frame constructed of steel pipes. 5. The formwork system for cast-in-place components on prefabricated walls according to claim 4, characterized in that, the two support structures (32) and the internal mold system (2) are fixed through tie rods (7). 6. The prefabricated wall cast-in-place component formwork system according to claim 4, characterized in that, a plurality of support blocks (8) are connected between the internal formwork system (2) and the support structure (32). 7. The formwork system for cast-in-place components on a prefabricated wall according to any one of claims 1-6, wherein the cast-in-place component is a cast-in-place beam (5), and the accommodating cavity (11) is a In the through hole at the upper end of the prefabricated wall (1), the connecting piece (4) is a connecting steel pipe. 8. The formwork system for cast-in-place components on a prefabricated wall according to any one of claims 1-6, wherein the cast-in-place component is a cast-in-place beam (5), and the accommodating cavity (11) is a In the groove at the top of the prefabricated wall (1), the connecting piece (4) is a tie rod. 9. The formwork system for cast-in-place components on a prefabricated wall according to any one of claims 1-6, wherein the cast-in-place components are cast-in-place columns (6), and the accommodating cavity (11) is a In the through hole on the side of the prefabricated wall (1), the connecting piece (4) is a connecting steel pipe. 10. A construction method of the prefabricated wall cast-in-place member formwork system according to any one of claims 1-9, characterized in that, comprising the following steps: S1: erecting the internal formwork system (2) on one end of the prefabricated wall (1) to be poured; S2: placing the connecting piece (4) in the accommodation cavity (11) of the prefabricated wall (1), and then fixing the connecting piece (4) and the supporting system (3); S3: fixed internal mold system (2) and support system (3).