Disassembly-free cast-in-place concrete formwork

Abstract

The utility model discloses a disassembly-free cast-in-place concrete formwork, which belongs to the field of buildings and comprises a plurality of formwork units made of white marble and granite, the formwork units are spliced into the formwork through inner screw pull rods, I-shaped steel keels, adhesives and clamping groove riveting, the formwork comprises a column formwork and a hollow wall formwork, and the column formwork and the hollow wall formwork are connected in a splicing mode. The hollow wall formwork is further embedded and fixed through an I-shaped steel keel and channel steel. According to the disassembly-free cast-in-place concrete formwork, white marble and granite are processed into standard formwork units, then the standard formwork units are assembled into the cast-in-place concrete formwork according to needs, the formwork and concrete are poured into a whole in the construction process, the formwork does not need to be disassembled after pouring is finished, only protective gummed paper on the surface needs to be removed, and beautiful seams need to be removed. And therefore, the purposes of saving materials, reducing the dead weight of the wall body, reducing the working procedures, shortening the construction period and reducing the cost are achieved.

Description

Technical Field

[0001] This utility model belongs to the field of construction, specifically relating to a non-disassembly cast-in-place concrete formwork. Background Technology

[0002] Stone is a high-quality building material that has long been widely used in industrial and civil construction. Man-made quarried stone slabs and blocks are the primary materials for the foundations and walls of residential buildings. Natural white marble contains high levels of calcium, an essential element for the human body, and granite is extremely resistant to weathering; both are superior building decoration materials, and my country has very large reserves of them. With the application of mechanized stone quarrying, marble and granite can now be widely used in building decoration. However, current decoration construction generally uses manual pasting and "dry hanging" methods to attach stone slabs one by one to walls or floors, requiring a large amount of manpower and a long construction period, increasing building decoration costs. Furthermore, current building construction involves many processes, including erecting complex full-span scaffolding, making formwork, tying reinforcing bars, pouring concrete, dismantling scaffolding, and removing formwork; after the walls are poured, decoration work is required, which necessitates erecting and dismantling scaffolding again, resulting in numerous problems such as high labor and material costs, high costs, and long construction periods. Utility Model Content

[0003] The technical problem to be solved by this utility model is to address the shortcomings of the existing technology by proposing a cast-in-place concrete formwork that does not require disassembly. The formwork is assembled from pure natural green and environmentally friendly calcium carbonate white marble and high-strength granite, which can complete the main concrete pouring and decoration construction. Therefore, there is no need to disassemble the formwork or carry out subsequent decoration construction, saving labor and materials and shortening the construction period.

[0004] To solve the above-mentioned technical problems, this utility model provides a non-disassembly cast-in-place concrete formwork, comprising several formwork units made of pure natural green and environmentally friendly calcium carbonate white marble and high-strength granite. Each formwork unit has a slot and a block at both ends along its length, with the slot and block fitting together. The formwork units are assembled into a formwork by means of "internal screw tie rod", "I-beam keel", "adhesive bonding" and "slot riveting". The upper and lower adjacent formwork units are fixed by slot riveting, and the left and right adjacent formwork units are fixed by slot bonding.

[0005] As a further description of the above technical solution, the templates are column templates, hollow wall templates, beam templates, and floor slab templates.

[0006] As a further description of the above technical solution, the thickness of the column template is 30-40 mm, and the two opposite template units of the column template are connected and fixed by "internal screw tie rods". The cross-section of the column template is circular, square, rectangular, hexagonal or octagonal; the column template is equipped with a main water pipe sleeve and a main line sleeve.

[0007] As a further description of the above technical solution, the hollow wall template includes an inner wall template and an outer wall template, and a hollow cavity for filling with thermal insulation and sound insulation materials is provided between the inner wall template and the outer wall template.

[0008] As a further description of the above technical solution, the inner wall formwork and the outer wall formwork are connected and fixed by stainless steel lightweight I-beam keel, the stainless steel lightweight I-beam keel is located at the splicing point of the formwork unit, and the ends of the inner wall formwork and the outer wall formwork are connected and fixed by stainless steel lightweight channel steel.

[0009] As a further description of the above technical solution, the template units of the inner wall template and the outer wall template are provided with grooves on all four sides. The spine of the stainless steel lightweight I-beam keel is embedded and fixed in the groove of the template unit. The surface of the spine is flush with the surface of the inner wall template and the outer wall template, which facilitates the later sealing treatment of the board joints, making the interior look beautiful and elegant. The outer wall template is made of granite slabs, which can remain permanently weather-resistant and non-detached.

[0010] As a further description of the above technical solution, the hollow wall template is cut with door and window openings, and the inner wall template and the outer wall template around the door and window openings are connected and fixed by stainless steel lightweight channel steel.

[0011] As a further description of the above technical solution, the beam formwork consists of a bottom formwork and side formwork, and the thickness of the beam formwork is 20-30 mm.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0013] (1) This practical model selects calcium carbonate white marble with extremely high calcium content and granite with extremely high strength as the decorative panels for columns, beams, walls and slabs of the cast-in-place main structure, replacing existing decorative materials such as tiles, paints and wallpapers. This not only increases the beauty and durability of the building, but also avoids the large-scale use of harmful substances such as formaldehyde during the decoration process. Moreover, calcium is an essential element for the human body. Using high calcium carbonate white marble to decorate the house allows people to live in a high-calcium environment, which is beneficial to their health.

[0014] (2) The use of non-removable formwork to replace the existing formwork and concrete protective layer that need to be disassembled reduces the use of formwork and concrete during the construction of cast-in-place main structure. In particular, hollow walls completely replace wall materials such as machine bricks and blocks, greatly reducing the self-weight of the wall and the heavy processes of masonry, plastering, and decoration, thus saving labor and materials more effectively, shortening the construction period, and reducing the construction cost.

[0015] (3) By adopting the splicing method of “internal screw tie rod” and “slot riveting”, the construction process of formwork, pouring and interior and exterior decoration of building construction can be completed in one go, which greatly reduces the construction process, shortens the construction period and reduces costs.

[0016] (4) Stainless steel lightweight I-beam keel is set at the splicing point of the template unit of the inner wall template and the outer wall template. It is also convenient to disassemble and modify, reducing the damage rate of the template. The disassembled template can be reused, and less construction waste is generated. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the template unit of this utility model;

[0018] Figure 2 This is a cross-sectional schematic diagram of the square column of this utility model;

[0019] Figure 3 yes Figure 2 AA section view;

[0020] Figure 4 This is a cross-sectional schematic diagram of the octagonal prism of this utility model;

[0021] Figure 5 This is a longitudinal sectional view of the wall structure of this utility model;

[0022] Figure 6 This is a horizontal sectional view of the wall structure of this utility model.

[0023] Figure 7 This is a schematic diagram of the wall installation elevation of this utility model;

[0024] Figure 8 This is a cross-sectional schematic diagram of the beam of this utility model;

[0025] Figure 9 This is a cross-sectional schematic diagram of the kickboard of this utility model;

[0026] Legend:

[0027] 10- Template unit; 11- Slot; 12- Locking block; 20- Internal screw tie rod;

[0028] 100-Square column; 101-Column formwork; 102-Main line sleeve; 103-Main water pipe sleeve; 200-Wall; 201-Hollow wall formwork; 201a-Interior wall formwork; 201b-Exterior wall formwork; 202-Hollow cavity; 203-I-beam keel; 203a-Spine; 204-Channel steel; 300-Beam; 301-Beam formwork; 301a-Beam bottom formwork; 301b-Beam side formwork; 400-Ceiling; 401-Kickboard formwork;

[0029] 500 - Concrete; 501 - Vertical reinforcement; 502 - Embedded main line sleeve; 503 - Embedded water pipe sleeve. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0031] A non-disassembly cast-in-place concrete formwork includes several formwork units 10 made of pure natural, environmentally friendly white marble slabs and high-strength granite slabs. Each formwork unit 10 has a slot 11 and a locking block 12 at both ends along its length. The slot 11 and the locking block 12 are compatible. Figure 1 As shown, the template units (10) are spliced ​​to form a template. The upper and lower adjacent template units 10 are fixed by rivet through slots, and the left and right adjacent template units 10 are fixed by rivet and adhesive through slots. The rivet of the slot is to apply high-strength adhesive to the slot 11, and then insert and adhesive the card block 12 into the slot 12.

[0032] The templates include column template 101, hollow wall template 201, beam template 301, and floor slab template.

[0033] The column template 101 uses white marble template units with a thickness of 30-40 mm. The two opposite template units 10 of the column template 101 are connected and fixed by internal screw rods 20. The end of the internal screw rod 20 extends 100-150 mm outside the column template 101 to facilitate the fixing of walls, doors and windows, etc. The internal screw rod 20 is made of φ6-8 round steel, cut according to the cross-sectional dimensions of the column, beam, slab, wall and floor surface components, and has arched wires at both ends. It is equipped with a pad and nut of the same diameter for use. When in use, the two ends pass through the column, beam, wall and slab and are locked with the pad and nut. The upper and lower adjacent template units 10 are riveted and fixed by the slot 11, the block 12 and the adhesive. The left and right adjacent template units 10 are glued and fixed by the adhesive.

[0034] The column formwork 101 has a square cross-section. Pre-embedded vertical reinforcing bars 501 are installed inside the column formwork 101, and concrete 500 is poured inside. The column formwork 101 is equipped with a main line sleeve 102 and a main water pipe sleeve 103, which are used to connect with the pre-embedded main line sleeve 502 and pre-embedded main water pipe sleeve 503 inside the cast-in-place concrete 500 before pouring, for subsequent installation of the main line and main water pipe. The poured square column 100 is as follows: Figure 2 , Figure 3 As shown. The cross-section of the column formwork 101 can also be octagonal (e.g., ...) depending on design requirements. Figure 4 (as shown), shapes such as circles, rectangles, and hexagons.

[0035] The hollow wall formwork 201 includes an inner wall formwork 201a and an outer wall formwork 201b. The inner wall formwork 201a is assembled from calcium carbonate white marble formwork units, and the outer wall formwork 201b is assembled from granite formwork units. A hollow cavity 202 for filling with thermal insulation material 504 exists between the inner wall formwork 201a and the outer wall formwork 201b. The hollow cavity 202 is filled with thermal insulation material 504. The inner wall formwork 201a and the outer wall formwork 201b are fixed together by stainless steel lightweight I-beam keel 203. The four corners of the formwork unit of the exterior wall formwork 201b are provided with grooves, and the spine 203a of the stainless steel lightweight I-beam keel 203 is located in the grooves. The surface of the spine 203 is flush with the surfaces of the interior wall formwork 201a and the exterior wall formwork 201b, respectively, facilitating subsequent decoration. The ends of the interior wall formwork 201a and the exterior wall formwork 201b are fixedly connected by stainless steel lightweight channel steel 204, replacing the use of high-density machine bricks, concrete blocks, plastering, decorative materials and construction procedures in wall engineering, avoiding the harm to people caused by the large-scale use of formaldehyde in decoration engineering; the wall 200 as... Figure 5 — Figure 7 As shown. The wall 200 is not only structurally sound, but also has stainless steel lightweight I-beam keel 203 installed at the splicing points of the formwork units, making disassembly and modification relatively convenient.

[0036] The hollow wall template 201 is cut with door and window openings as needed. The hollow wall template 201 at the door and window openings can be cut and installed on site according to the height from the floor to the bottom of the window opening. The inner wall template 201a and the outer wall template 201b around the door and window openings are connected and fixed by stainless steel lightweight channel steel 204.

[0037] The beam formwork 301 consists of a bottom beam formwork 301a and side beam formwork 301b. Both the bottom beam formwork 301a and the side beam formwork 301b are assembled from white marble formwork units. The thickness of the bottom beam formwork 301a and the side beam formwork 301b is 20-30 mm. The locking blocks 12 of the side beam formwork 301b are inserted into the locking slots 11 of the bottom beam formwork 301a and fixed with adhesive. The opposite side beam formworks 301b are fixed together by internal screw railings 20. The cast beam 300 is as follows: Figure 7 As shown.

[0038] The aforementioned skirting board template 401 is installed at the corner of the wall 200, beam 100, and ceiling 400, such as... Figure 8 As shown, the skirting board template 401 is a marble slab.

[0039] This utility model selects white marble and granite as formwork for cast-in-place columns, walls, beams, and slabs, which have good gloss (up to 117.2 degrees) and high compressive strength (502~1768 kg / cm²). 2 It has superior compressive strength (compared to C30 concrete), high flexural strength (36-252 kg), and high density (267-273 g / cm³). 3 It is the same as C30 concrete, and it does not weather for hundreds of years. Calcium carbonate marble is high in calcium, environmentally friendly, and also beneficial to health.

[0040] This utility model of non-disassembly cast-in-place concrete formwork utilizes a horizontally moving stone cutting machine to quarry stone. Following building codes, natural white marble and granite are cut at the quarry site into formwork roughs of varying specifications, with a thickness of 2 cm, a width of at least 1.2 meters, and a length of at least 3 meters. These roughs are then transported to a stone processing plant, where they are finely processed into standard cast-in-place column, wall, beam, and floor slab decorative formwork units using a polishing machine. At the construction site, as needed, the formwork is assembled into cast-in-place concrete formwork using methods such as "internal screw tie rods," "slot riveting," and "adhesive bonding." During construction, the formwork and concrete are poured as a single unit. After pouring, the formwork does not need to be removed; only the protective adhesive paper and grout sealing are removed, completing the pouring and decoration of the main building structure. This achieves the goals of saving materials, reducing weight, reducing procedures, shortening the construction period, and lowering costs.

[0041] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it; those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of this utility model.

Claims

1. A non-disassembly-required cast-in-place concrete formwork, characterized in that: The template unit (10) includes several template units (10) made of calcium carbonate white marble and granite. Each template unit (10) has a slot (11) and a block (12) at both ends along its length. The slot (11) and the block (12) are compatible. The template units (10) are spliced ​​together to form a template. The upper and lower adjacent template units (10) are riveted together by the slots. The left and right adjacent template units (10) are fixed together by the slots and adhesive.

2. The non-disassembly-required cast-in-place concrete formwork as described in claim 1, characterized in that: The templates include column templates (101), hollow wall templates (201), beam templates (301), and floor slab templates.

3. The non-removable cast-in-place concrete formwork as described in claim 2, characterized in that: The column template (101) has a thickness of 30-40 mm, and the two opposite template units (10) of the column template (101) are connected and fixed by internal screw tie rods (20).

4. The non-removable cast-in-place concrete formwork as described in claim 3, characterized in that: The column template (101) is provided with a main water pipe sleeve (102) and a main line sleeve (103).

5. The non-removable cast-in-place concrete formwork as described in claim 3 or 4, characterized in that: The cross-section of the column template (101) is circular, square, rectangular, hexagonal or octagonal.

6. The non-disassembly-required cast-in-place concrete formwork as described in claim 2, characterized in that: The hollow wall template (201) includes an inner wall template (201a) and an outer wall template (201b), with a hollow cavity (202) between the inner wall template (201a) and the outer wall template (201b) for filling with thermal insulation and sound insulation materials.

7. The non-removable cast-in-place concrete formwork as described in claim 6, characterized in that: The inner wall template (201a) and the outer wall template (201b) are fixed together by I-beam keel (203), which is located at the splicing point of the template unit (10). The ends of the inner wall template (201a) and the outer wall template (201b) are fixed together by channel steel (204).

8. The non-removable cast-in-place concrete formwork as described in claim 7, characterized in that: The template unit (10) has grooves on all four sides. The spine (203a) of the I-beam keel (203) is embedded and fixed in the groove of the template unit (10). The surface of the spine (203a) is flush with the surface of the inner wall template (201a) and the outer wall template (201b).

9. The non-removable cast-in-place concrete formwork as described in any one of claims 6 to 8, characterized in that: The hollow wall template (201) has door and window openings cut out on it, and the inner wall template (201a) and outer wall template (201b) around the door and window openings are connected and fixed by channel steel (204).

10. The non-disassembly-required cast-in-place concrete formwork as described in claim 2, characterized in that: The beam formwork (301) consists of a bottom beam formwork (301a) and a side beam formwork (301b), and the thickness of the beam formwork (301) is 20-30 mm.

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