CN219654080U - Prefabricated hollow column without support and detachment - Google Patents

Abstract

A prefabricated hollow column without support and disassembly mould comprises a column main rib and a column hoop rib, wherein a composite disassembly-free mould is arranged outside the column hoop rib along the length direction of the column, and a nonmetal flexible reinforcing net surrounds the composite disassembly-free mould; a reinforcing steel bar protection layer cushion block is arranged between the composite dismantling-free template and the column hoop ribs; the anchor nails without disassembling the form penetrate through the composite form without disassembling and the cushion block of the reinforcement protection layer to fix. Through the structure, the utility model provides the support-free and disassembly-free prefabricated hollow column with high mechanical degree, low labor cost and high finished product quality.

Description

Prefabricated hollow column without support and detachment

Technical Field

The utility model relates to a prefabricated hollow column without support and form removal, in particular to the technical field of industrial production and installation of concrete columns for buildings, and particularly relates to a prefabricated hollow column without support and form removal.

Background

The concrete column consists of stressed main bars, stirrups and concrete, and after the main bars and the reinforcing bars are bound, the template constraint is needed, and then the concrete is poured for forming. The concrete column is a vertical bearing stress component of a building, and is generally connected with a concrete beam and a frame structure of a house in a concrete slab process, and the reinforced bars of the concrete beam and the slab are connected with the concrete column in an anchoring manner to form the frame stress structure. This building forming mode is commonly called a concrete cast-in-place structure.

Along with the further development of concrete construction technology, the industrialization of the building is increasing year by year, and especially the assembled building started in the present year has been promoted and applied in a large area. The concrete column is also prefabricated in a factory instead of in-situ casting in a large amount, so that labor force is saved greatly, quality is improved, and cost is reduced. According to types, it is generally classified into a precast solid concrete column and a precast hollow concrete column. The main stream of the prefabricated hollow column is a hollow column without removing the mould, namely the steel bar system is wrapped by the mould without removing the mould, and the prefabricated hollow column is prefabricated and formed in a factory, concrete is poured on site, and the mould is not removed after maintenance and forming.

The technical defects of the existing form and process of the form-removal-free hollow column are that:

1. the core problem is that the formwork is not broken when the concrete is poured, and the formwork is commonly called as a formwork expansion;

2. the reason for the expansion is the strength problem of the disassembly-free form:

3. the brittleness is large, and the toughness is small: during concrete pouring, stones fall down and directly impact the template to cause damage;

4. the flexural strength is low: preparing a single cement-based material without a composite layer;

5. additional support is required: in order to solve the problem of template expansion without dismantling, the method of the general length is an extra support, namely: before concrete pouring, a plurality of square or square steel are temporarily reinforced on the outer hoops of the hollow columns. Time and effort are wasted, work efficiency is low, and environmental protection is not realized.

Disclosure of Invention

The utility model aims to overcome the defects of the structural form of the traditional mold-removal-free prefabricated hollow column and provides the mold-removal-free prefabricated hollow column which has a simple structure, is convenient and flexible and does not need extra support.

In order to solve the technical problems, the technical scheme of the utility model is as follows: a prefabricated hollow column without support and disassembly mould comprises a column main rib and a column hoop rib, wherein a composite disassembly-free mould is arranged outside the column hoop rib along the length direction of the column, and a nonmetal flexible reinforcing net surrounds the composite disassembly-free mould; a reinforcing steel bar protection layer cushion block is arranged between the composite dismantling-free template and the column hoop ribs; the anchor nails without disassembling the form penetrate through the composite form without disassembling and the cushion block of the reinforcement protection layer to fix.

The composite dismantling-free template comprises a dismantling-free template body and a lining plate, wherein one surface of the lining plate is provided with an embedded pin, and the embedded pin and the lining plate are of an integrated structure; the embedded pin is embedded in the disassembly-free template body.

The reinforcement protection layer cushion block comprises a cushion block body, an upper buckle and a lower buckle; the length of the cushion block body is larger than the spacing of column hoop ribs; the upper buckle and the lower buckle are arranged on the side surface of the cushion block body, the upper buckle and the lower buckle are of arc structures with openings, the openings face the direction of column hoop ribs, and the distance between the upper buckle and the lower buckle is equal to the distance between the column hoop ribs; the upper buckle and the lower buckle clamp two upper and lower adjacent column stirrups respectively to position.

The upper buckle and the lower buckle are both of a major arc structure which is larger than a half arc shape, and the inner diameter of the upper buckle corresponds to the diameter of the column hoop rib.

The steel bar protection layer cushion block is of a metal cushion block structure, and forms an integral structure with concrete in the cavity after pouring.

The nonmetal flexible reinforcing net is of a grid cloth-shaped structure.

The beneficial effects of the utility model are as follows:

1. the composite disassembly-free template is adopted, so that the impact resistance of the inner layer is increased, the template is more flexible, and the hidden danger of brittle expansion of the template is eliminated;

2. the reinforcing net is adopted for winding, so that the high tension of the reinforcing net is fully utilized, the molding is convenient, and the hidden danger of the concrete pouring expansion mould can be eliminated without additional support;

3. realizing mechanical production and greatly improving the production efficiency;

4. labor cost is greatly saved;

5. the product quality is improved;

6. realizes the aims of energy conservation, emission reduction and environmental protection of building industrialization.

Drawings

Fig. 1: the structure of the utility model is schematically shown;

fig. 2: the structural schematic diagram of the reinforcement protection layer cushion block in fig. 1;

fig. 3: the structure of the composite form in fig. 1 is schematically shown.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

A prefabricated hollow column without support and disassembly is provided, which comprises a column main rib 1 and a column hoop rib 2, wherein a composite disassembly-free template 5 is arranged outside the column hoop rib 2 along the length direction of the column. The composite disassembly-free template 5 comprises a disassembly-free template body 5-1 and a lining plate 5-2, wherein one surface of the lining plate 5-2 is provided with an embedded pin 5-3, and the embedded pin 5-3 and the lining plate 5-2 are of an integrated structure; the embedded pin 5-3 is embedded in the disassembly-free template body 5-1.

A reinforcement protection layer cushion block 3 is arranged between the composite disassembly-free template 5 and the column hoop rib 2; the form removal-free anchor nails 4 penetrate through the composite form removal-free plates 5 and the reinforcement protection layer cushion blocks 3 to be fixed. The reinforcement protection layer cushion block 3 comprises a cushion block body 3-1, an upper buckle 3-2 and a lower buckle 3-3; the length of the cushion block body 3-1 is larger than the spacing between the column hoop ribs 2; the upper buckle 3-2 and the lower buckle 3-3 are arranged on the side surface of the cushion block body 3-1, the upper buckle 3-2 and the lower buckle 3-3 are of arc structures with openings, the openings face the direction of the column stirrups 2, and the distance between the upper buckle 3-2 and the lower buckle 3-3 is equal to the distance between the column stirrups 2; the upper buckle 3-2 and the lower buckle 3-3 respectively clamp two upper and lower adjacent column hoop ribs 2 for positioning. The upper buckle 3-2 and the lower buckle 3-3 are both of a major arc structure which is larger than a half arc shape, and the inner diameter of the major arc structure corresponds to the diameter of the column hoop rib 2. The reinforcement protection layer cushion block 3 is of a metal cushion block structure, and forms an integral structure with the concrete in the cavity 7 after pouring.

The nonmetal flexible reinforcing net 6 is surrounded outside the composite dismantling-free template 5, and the nonmetal flexible reinforcing net 6 is in a grid cloth-shaped structure.

The specific use is as follows:

column main rib 1: the size and number of conventional processes are determined by the design.

Column stirrup 2: the traditional technology is that the binding or welding is carried out on the main reinforcement, and the hoop of the closed loop is formed, and the hoop is arranged along the direction of the main reinforcement according to a certain interval.

Reinforcing bar protective layer backing plate 3: the concrete protective layer is arranged between the steel bars and the templates, is made of nonmetallic materials, and forms a concrete protective layer with the thickness according to the design requirement naturally on the periphery of the steel bars after being poured with concrete.

Backing plate body 3-1: the length L of the strip-shaped nonmetallic product has certain strength, such as plastics, ceramics, fiber boards and the like, and is required to be larger than the interval of stirrups.

Upper buckle 3-2: the column stirrup is clamped so that the pad body is stably fixed on the column stirrup 2.

Lower buckle 3-3: the column stirrup is clamped, and the function of the column stirrup is the same as that of the upper buckle 3-2.

The thickness D of the backing plate 3 of the reinforcement protection layer is the design thickness of the reinforcement protection layer.

And (4) the anchor nail without removing the mould: the traditional process is generally self-tapping nails or blind rivets, and the function of the traditional process is to temporarily fix the disassembly-free template.

Composite disassembly-free template 5: the impact resistance of the inner layer is increased, the hidden trouble of brittle expansion die is avoided.

Disassembly-free template body 5-1: the form body is free from being disassembled and is generally prepared from traditional cement-based materials;

inner liner 5-2: is prepared from high-strength and high-toughness materials, such as steel, engineering plastics and the like;

embedded pin 5-3: is of an integrated structure and material with the inner lining plate 5-2, and is embedded into the inner lining plate during the mold removal-free molding.

The nonmetallic flexible reinforcing net 6 has the following characteristics: 1. nonmetallic: rust is avoided; 2. flexibility: is convenient for winding.

Nonmetal flexible reinforcing net 6 material: is prepared from high-strength flexible materials, such as: carbon fiber, acrylic fiber, glass fiber and the like, the material has high strength, particularly tensile strength, and the finished product is in a grid cloth shape, is extremely thin and does not occupy space; the adhesive property is good.

Cavity 7: the cavity formed by the assembly and combination of the reinforcement cage, the disassembly-free template and the reinforcing net is filled with concrete to form a structural column stressed by a building.

The concrete construction is as follows:

1. preparing a composite disassembly-free template: covering the lining plate during the traditional form-dismantling-free forming, and curing and forming together;

2. preparing a reinforcing steel bar protection layer backing plate: a traditional process;

3. preparing a reinforcing steel bar system: discharging and assembling the main reinforcements and stirrups according to a design drawing;

4. fixing the reinforcement protection layer backing plate: the upper buckle and the lower buckle of the backing plate are respectively clamped with the column stirrup;

5. installing a composite disassembly-free template: temporarily fixing by adopting an anchor nail, and paying attention to inward facing of the lining plate;

6. winding a reinforcing net: the specification, the size and the winding position of the reinforcing net are all determined by design, and corresponding adhesive is required to be smeared during winding;

7. curing and molding;

8. transportation and hoisting: a traditional process;

9. the hollow column is temporarily fixed: and (3) a traditional process. Is temporarily fixed and is not a support. Temporary fixation is to prevent overturning, and a temporary support, namely an inclined support, is generally adopted; the support is reinforced by the form board which is free from being disassembled.

10. Pouring and curing concrete;

11. and (5) finishing.

Claims (6)

1. The utility model provides a prefabricated hollow post of no support form removal, includes post owner muscle (1) and column hoop muscle (2), its characterized in that: a composite disassembly-free template (5) is arranged outside the column stirrup (2) along the length direction of the column, and a nonmetal flexible reinforcing net (6) is surrounded outside the composite disassembly-free template (5); a reinforcing steel bar protection layer cushion block (3) is arranged between the composite dismantling-free template (5) and the column hoop ribs (2); the anchor nails (4) which are free from disassembling pass through the composite type free from disassembling template (5) and the reinforcement protection layer cushion block (3) to be fixed.

2. The shoveless form removal free prefabricated hollow column of claim 1, wherein: the composite dismantling-free template (5) comprises a dismantling-free template body (5-1) and a lining plate (5-2), wherein an embedded pin (5-3) is arranged on one surface of the lining plate (5-2), and the embedded pin (5-3) and the lining plate (5-2) are of an integrated structure; the embedded pin (5-3) is embedded into the disassembling-free template body (5-1).

3. The shoveless form removal free prefabricated hollow column of claim 1, wherein: the reinforcement protection layer cushion block (3) comprises a cushion block body (3-1), an upper buckle (3-2) and a lower buckle (3-3); the length of the cushion block body (3-1) is longer than the interval of the column hoop ribs (2); the upper buckle (3-2) and the lower buckle (3-3) are arranged on the side face of the cushion block body (3-1), the upper buckle (3-2) and the lower buckle (3-3) are of an arc-shaped structure with openings, the openings face the direction of the column stirrups (2), and the distance between the upper buckle (3-2) and the lower buckle (3-3) is equal to the distance between the column stirrups (2); the upper buckle (3-2) and the lower buckle (3-3) clamp two upper and lower adjacent column hoop ribs (2) respectively for positioning.

4. A shotless, disassembly-free prefabricated hollow column according to claim 3, wherein: the upper buckle (3-2) and the lower buckle (3-3) are of a major arc structure which is larger than a half arc shape, and the inner diameter of the upper buckle corresponds to the diameter of the column hoop rib (2).

5. The shoveless form removal free prefabricated hollow column of claim 1, wherein: the steel bar protection layer cushion block (3) is of a metal cushion block structure, and forms an integral structure with concrete in the cavity (7) after pouring.

6. The shoveless form removal free prefabricated hollow column of claim 1, wherein: the nonmetal flexible reinforcing net (6) is of a grid cloth-shaped structure.