Form-removal-free fabricated thermal insulation wall structure

Abstract

The utility model belongs to the technical field of buildings, and particularly relates to a formwork-removal-free assembly type heat preservation wall structure which comprises two sets of formwork units which are symmetrically arranged, a pouring layer is formed between the two sets of formwork units, the formwork units on the two sides are connected through tie pieces, and each formwork unit comprises a wall plate and a wall column. The wallboards and the wall columns are alternately arranged in the horizontal direction, the two ends of the wallboards are fixedly connected with the wall columns adjacent to the two ends of the wallboards correspondingly, and the multiple sets of formwork units are arranged in a lap joint mode in the arrangement direction. The formwork units are formed by alternately arranging the wall plates and the wall columns which are made of cement materials, the formwork units can serve as a part of a permanent wall body structure without being dismantled, the traditional formwork dismantling procedure is omitted, labor input is reduced, and the construction period is shortened.

Description

Technical Field

[0001] The utility model belongs to the technical field of construction, and particularly relates to a formwork-free prefabricated thermal insulation wall structure. Background Technique

[0002] Prefabricated buildings are gradually becoming the mainstream development direction in the construction field due to their advantages such as high efficiency, environmental protection, and controllable quality. As an important part of a building, the structural performance and construction efficiency of the wall directly affect the overall quality of the building and the energy conservation and environmental protection effect.

[0003] In the traditional wall construction process, generally, a formwork needs to be erected first to form a pouring layer, and then concrete is poured into the pouring layer. After the concrete solidifies, the formwork needs to be removed. However, the formwork removal process is cumbersome, increasing the construction cost and cycle, and the removed formwork is difficult to be reused, resulting in waste of resources. Content of the Utility Model

[0004] In order to solve the problems existing in the above-mentioned prior art, the utility model provides a formwork-free prefabricated thermal insulation wall structure, in which the formwork unit is formed by alternately arranging wall panels and wall columns made of cement. The formwork unit can be used as a part of the permanent structure of the wall without being removed, eliminating the traditional formwork removal process, reducing labor input and construction cycle.

[0005] The specific technical solution adopted by the utility model is as follows:

[0006] A formwork-free prefabricated thermal insulation wall structure includes a formwork unit. Two groups of formwork units are symmetrically arranged, and a pouring layer is formed between the two groups of formwork units. The formwork units on both sides are connected by tie members. The formwork unit includes a wall panel and a wall column. The wall panels and wall columns are alternately arranged in the horizontal direction. The two ends of the wall panel are fixedly connected to the wall columns adjacent to the two ends of the wall panel respectively. Multiple groups of formwork units are arranged in a lap joint along the setting direction.

[0007] The cross-section of the wall column in the horizontal direction is in a "convex" shape structure. The protruding end of the wall column faces away from the pouring layer side. The end of the wall panel is lapped at the included angle with the wall column, and the lapped part of the wall panel and the wall column is fixedly connected by fixing bolts.

[0008] The screw holes on the wall panel that cooperate with the fixing bolts are in the shape of counterbores.

[0009] The formwork unit further includes a thermal insulation board. The thermal insulation board is located between adjacent wall columns and is bonded to the side of the wall panel facing the pouring layer.

[0010] [[ID=

[0011] The tie element also includes a barrier sleeve, the two ends of which are connected to the wall columns on both sides of the poured layer. The hollow cavity of the barrier sleeve forms a through-wall channel. The through-wall bolt passes through the wall columns on both sides of the poured layer along the through-wall channel. The barrier sleeve prevents the concrete in the poured layer from contacting the through-wall bolt.

[0012] The wall column is provided with a limiting groove on the side near the cast-in-place layer, which cooperates with the end of the barrier sleeve. The barrier sleeve is fixed by insertion through the limiting grooves on both sides of the cast-in-place layer.

[0013] The beneficial effects of this utility model are:

[0014] The template unit in this utility model is composed of alternating cement wall panels and wall columns. Firstly, the template unit in this utility model can serve as part of the permanent wall structure without being removed, eliminating the traditional template removal process and reducing labor input and construction cycle. Secondly, the alternating arrangement of wall panels and wall columns allows for flexible splicing according to the wall length, adapting to different building size requirements and improving the modularity of prefabricated buildings. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the template unit structure;

[0017] In the attached diagram, 1 is the pouring layer, 2 is the wall panel, 3 is the wall column, 4 is the fixing bolt, 5 is the insulation board, 6 is the through-wall bolt, 7 is the fastening plate, 8 is the barrier sleeve, 9 is the limiting groove, and 10 is the screw hole. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0019] Specific embodiments, such as Figure 1-2 As shown, this utility model provides a prefabricated thermal insulation wall structure that does not require demolding, including template units. Two sets of template units are symmetrically arranged, and a casting layer 1 is formed between the two sets of template units. The template units on both sides are connected by tie rods. Each template unit includes a wall panel 2 and a wall column 3. The wall panel 2 and the wall column 3 are alternately arranged in the horizontal direction. The two ends of the wall panel 2 are fixedly connected to the wall column 3 adjacent to the two ends of the wall panel 2. Multiple sets of template units are overlapped along the setting direction.

[0020] During the traditional wall construction process, it is generally necessary to first build a formwork to form a pouring layer 1, then pour concrete into the pouring layer 1, and after the concrete solidifies, the formwork needs to be removed. However, the removal process of the formwork is cumbersome, increasing the construction cost and cycle, and the removed formwork is difficult to be reused, resulting in waste of resources.

[0021] Therefore, the formwork unit in the present utility model is formed by alternately arranging wall panels 2 made of cement and wall columns 3. Firstly, the formwork unit in the present utility model can be used as a part of the permanent structure of the wall without removal, eliminating the traditional formwork removal process, reducing labor input and construction cycle; secondly, the wall panels 2 and wall columns 3 are alternately arranged, which can be flexibly spliced according to the wall length to meet the requirements of different building sizes and improve the modularization degree of prefabricated buildings.

[0022] In addition, the wall column 3 in the present utility model is fixedly connected to the upper and lower floor slabs or the foundation, ensuring that the formwork unit can remain stationary after the tie members are disassembled.

[0023] The cross-section of the wall column 3 in the horizontal direction is in a "convex" shape structure, and the protruding end of the wall column 3 faces away from the pouring layer 1. The end of the wall panel 2 is lapped at the angle with the wall column 3, and the lapped part of the wall panel 2 and the wall column 3 is fixedly connected by means of fixing bolts 4. The "convex" design of the wall column 3 is convenient for quickly positioning the wall panel 2 and the fixing bolts 4 on site. During installation, only the narrow end side walls of the wall panel 2 and the wall column 3 need to be abutted, improving the assembly accuracy and reducing construction errors.

[0024] The screw holes 10 on the wall panel 2 that cooperate with the fixing bolts 4 are in the shape of counterbores. The head of the fixing bolt 4 sinks into the counterbore, avoiding protruding from the surface of the wall panel 2, ensuring the flatness of the wall surface, and providing a good foundation for subsequent plastering, decoration and other processes.

[0025] The formwork unit further includes a thermal insulation board 5, and the thermal insulation board 5 is located between adjacent wall columns 3. The thermal insulation board 5 is bonded to one side of the wall panel 2 facing the pouring layer 1. The thermal insulation board 5 is fixed relying on the framework formed by the wall panel 2 and the wall column 3, avoiding the problem that the traditional thermal insulation layer is easily peeled off when pasted alone, forming an integral body with the wall structure, and improving the durability of the thermal insulation layer. [[ID=1 7]]

[0026] The tie member includes a through-wall screw 6 and fastening plates 7 respectively arranged at both ends of the through-wall screw 6. The fastening plates 7 are threadedly connected to the through-wall screw 6. The through-wall screw 6 penetrates through the wall columns 3 on both sides of the pouring layer 1, and the fastening plates 7 are in contact with the outer surface of the wall column 3. The through-wall screw 6 penetrates through the wall columns 3 of the formwork units on both sides and is tightened and fixed by the fastening plates 7, ensuring that the distance between the formwork units on both sides is fixed during the pouring process, preventing the formwork units from deforming or displacing during the concrete pouring, and ensuring the dimensional accuracy of the formed wall; in addition, by making the fastening plates 7 in contact with the outer surface of the wall column 3, the tension can be evenly transmitted to the whole wall column 3, avoiding local stress concentration and improving the mechanical properties of the tie member.

[0027] The connecting component also includes a barrier sleeve 8, whose two ends are connected to the wall columns 3 on both sides of the poured layer 1. The hollow cavity of the barrier sleeve 8 forms a through-wall channel, and the through-wall bolt 6 passes through the wall columns 3 on both sides of the poured layer 1 along the through-wall channel. The barrier sleeve 8 prevents the concrete in the poured layer 1 from contacting the through-wall bolt 6. The barrier sleeve 8 can be a PVC pipe. The barrier sleeve 8 not only forms a through-wall channel to facilitate the installation of the through-wall bolt 6, but also prevents the concrete slurry from directly contacting the through-wall bolt 6, facilitating the subsequent disassembly of the through-wall bolt 6 and ensuring the reusability of the through-wall bolt 6.

[0028] The wall column 3 has a limiting groove 9 on the side near the cast-in-place layer 1, which mates with the end of the barrier sleeve 8. The barrier sleeve 8 is fixed by insertion using the limiting grooves 9 on both sides of the cast-in-place layer 1. The limiting groove 9 provides installation points for the barrier sleeve 8, ensuring that both ends of the barrier sleeve 8 are tightly fitted with the wall column 3, preventing the barrier sleeve 8 from shifting and causing concrete to seep into the wall penetration channel. At the same time, it simplifies the installation steps of the barrier sleeve 8 and improves construction efficiency.

Claims

1. A prefabricated, formwork-free insulated wall structure, comprising template units, two sets of template units symmetrically arranged, with a casting layer (1) formed between the two sets of template units, the template units on both sides being connected by tie rods, characterized in that, The template unit includes wall panels (2) and wall columns (3). The wall panels (2) and the wall columns (3) are arranged alternately in the horizontal direction. Both ends of the wall panel (2) are fixedly connected to the wall columns (3) adjacent to both ends of the wall panel (2). Multiple groups of the template units are arranged in a lapped manner along the set direction.

2. The disassembly-free die assembly type thermal insulation wall structure according to claim 1, wherein, The cross-section of the wall column (3) in the horizontal direction is in a "convex" shape structure. The protruding end of the wall column (3) faces away from the side of the casting layer (1). The end of the wall panel (2) is lapped at the angle with the wall column (3). The lapped part of the wall panel (2) and the wall column (3) is fixedly connected by means of a fixing bolt (4).

3. The disassembly-free die assembly type thermal insulation wall structure according to claim 2, characterized in that, The screw hole (10) on the wall panel (2) that cooperates with the fixing bolt (4) is in the shape of a counterbore.

4. The disassembly-free die assembly type thermal insulation wall structure according to claim 1, wherein, The template unit further includes a thermal insulation board (5). The thermal insulation board (5) is located between adjacent wall columns (3). The thermal insulation board (5) is bonded to the side of the wall panel (2) facing the casting layer (1).

5. The disassembly-free die assembly type thermal insulation wall structure according to claim 1, wherein, The tie member includes a through-wall screw rod (6) and fastening pieces (7) respectively arranged at both ends of the through-wall screw rod (6). The fastening pieces (7) are threadedly connected to the through-wall screw rod (6). The through-wall screw rod (6) penetrates through the wall columns (3) on both sides of the casting layer (1). The fastening pieces (7) are fitted to the outer surface of the wall column (3).

6. The disassembly-free die assembly type thermal insulation wall structure according to claim 5, wherein, The tie member further includes a barrier sleeve (8). Both ends of the barrier sleeve (8) are connected to the wall columns (3) on both sides of the casting layer (1). The hollow chamber of the barrier sleeve (8) forms a through-wall channel. The through-wall screw rod (6) penetrates through the wall columns (3) on both sides of the casting layer (1) along the through-wall channel. The barrier sleeve (8) prevents the concrete in the casting layer (1) from contacting the through-wall screw rod (6).

7. The disassembly-free die assembly type thermal insulation wall structure according to claim 6, characterized in that, A limiting groove (9) that cooperates with the end of the barrier sleeve (8) is provided on the side of the wall column (3) close to the casting layer (1). The barrier sleeve (8) is inserted and fixed by means of the limiting grooves (9) on both sides of the casting layer (1).

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