CN216740700U

CN216740700U - Post template is exempted from to tear open by assembly forming's UHPC

Info

Publication number: CN216740700U
Application number: CN202220101105.6U
Authority: CN
Inventors: 王朋; 尤学辉; 史庆轩; 薛岩
Original assignee: Xi'an High Tech Zone Infrastructure Supporting Construction And Development Co ltd; Xian University of Architecture and Technology
Current assignee: Xi'an High Tech Zone Infrastructure Supporting Construction And Development Co ltd; Xian University of Architecture and Technology
Priority date: 2022-01-15
Filing date: 2022-01-15
Publication date: 2022-06-14
Anticipated expiration: 2032-01-15

Abstract

The utility model discloses an assembled UHPC (ultra high performance polycarbonate) disassembly-free column template, belonging to the field of UHPC templates. The UHPC disassembly-free column template is formed by assembling corner UHPC plates, a middle UHPC plate and connecting pieces pre-buried in the middle UHPC plate. The corner UHPC plates are positioned at four corners of the whole column mould, the middle UHPC plate is positioned in the middle of each side of the column mould, and the two forms of templates are connected together through connecting pieces pre-embedded in the middle UHPC plate to form the whole column mould without dismantling. Compared with the traditional building template, the UHPC column-dismantling-free template does not need to be dismantled after concrete is poured and hardened, so that the construction time is saved, and the bearing capacity and the crack resistance of the column can be improved due to the existence of the UHPC template.

Description

Post template is exempted from to tear open by assembly forming's UHPC

Technical Field

The utility model belongs to the field of UHPC templates, and particularly relates to an assembled and molded UHPC disassembly-free column template.

Background

The column is used as an important stressed component in the structure, and the quality of the forming quality of the column is crucial to the safety of the whole structure. In the construction process, the reinforced concrete column is usually poured by using traditional building templates such as wood templates, steel templates and bamboo glue templates, but the traditional building templates have many defects, such as low turnover utilization rate, large occupied amount, resource waste and the like. In addition, the traditional building template still needs to be dismantled after concrete pouring is hardened, and further treatment is generally needed due to uneven concrete surface after the template is dismantled, so that the labor amount is increased, and the field operation efficiency is reduced. Therefore, a new template is urgently needed to solve the problems. The concrete non-dismantling formwork is used as a novel building formwork and is made of various concrete, fiber materials and the like, and the concrete non-dismantling formwork has the advantages of high strength, good bending resistance, simplicity in manufacturing and the like. The template is used as a template of a cast-in-place concrete column, and the template does not need to be disassembled after concrete is poured and molded, and forms a whole with the cast-in-place concrete column to participate in stress together.

At present, researches on a disassembly-free column form made of concrete and a corresponding combined member show that the existence of the concrete form can improve the bearing capacity of the column, inhibit the development of cracks, improve the durability of the structure and the like, which indicates that the concrete form is feasible. However, most studies use concrete column forms made of ordinary concrete, and the mechanical properties of the concrete column forms are different from those of high-strength or high-performance concrete. In addition, the integral column mold is complex in manufacturing process and is more easily damaged in the transportation process, so that unnecessary loss is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide an assembled and formed UHPC column template without disassembling.

In order to achieve the purpose, the utility model adopts the following technical scheme to realize the purpose:

an assembled and molded UHPC column-dismantling-free template comprises 4 corner UHPC plates and 4 middle UHPC plates, wherein the corner UHPC plates and the middle UHPC plates are mutually connected to form a hollow cuboid column mold, the 4 corner UHPC plates are respectively positioned at four corners of the cuboid column mold, and the middle UHPC plate is connected between the two corner UHPC plates;

the middle UHPC plate consists of a middle UHPC plate and connecting pieces pre-embedded at two sides of the middle UHPC plate, round holes are uniformly distributed on the inner surface of the UHPC plate, and a plurality of bolts are arranged on the connecting pieces;

the cross section of the corner UHPC plate is L-shaped, round holes are uniformly distributed on the inner surface of the corner UHPC plate, and bolt holes corresponding to bolts of the connecting piece are arranged on the connecting part of the corner UHPC plate.

Furthermore, the connecting piece of the UHPC plate in the middle is a steel plate, and a plurality of bolts are welded on the steel plate.

Further, the thickness of the steel plate was 1/10D, the width was 1.5D, and D was the thickness of the UHPC plate in the middle.

Further, the corner UHPC plate and the middle UHPC plate have the same thickness, which is not less than 20 mm.

Furthermore, the connecting parts on two sides of the UHPC plate at the middle part are L-shaped steps of the pre-embedded connecting piece, and the connecting parts on two sides of the UHPC plate at the corner part are L-shaped steps;

the thickness of the connecting piece is less than that of the connecting part of the middle UHPC board, and the thickness of the connecting part of the corner UHPC board and the middle UHPC board is equal to half of that of the corner UHPC board.

Furthermore, the connecting part formed by buckling the connecting part of the middle UHPC plate and the connecting part of the corner UHPC plate is the same as the thicknesses of the middle UHPC plate and the corner UHPC plate.

Further, the bolts are evenly distributed along the length direction of the connecting piece at intervals of 10 cm.

Further, round holes on the inner surfaces of the corner UHPC plate and the middle UHPC plate are formed by bubble films.

Compared with the prior art, the utility model has the following beneficial effects:

according to the UHPC dismantling-free column template formed by assembly, the UHPC dismantling-free column template is prefabricated in a factory, the size of the template can be determined according to actual requirements, the forming quality is guaranteed, and the surface of the template does not need to be repaired for the second time after the template is used as a template for a cast-in-place concrete column; the UHPC has the advantages of high strength and good durability, and can bear force with a cast-in-place concrete column after being used as a non-dismantling template, so that the bearing capacity of the column is improved, and the corrosion of reinforcing steel bars inside the column can be delayed due to the existence of the non-dismantling template of the UHPC, so that the service life of the structure is prolonged. Compared with the traditional building template, the UHPC dismantling-free column template does not need to be dismantled after concrete is poured and hardened, so that the construction time is saved, and the bearing capacity and the crack resistance of the column can be improved due to the existence of the UHPC template.

Drawings

FIG. 1 is a schematic view of an assembled UHPC column-dismantling-free template of the present invention;

FIG. 2 is a schematic view of a middle UHPC board of the pre-buried connector;

FIG. 3 is a schematic view of a corner UHPC board;

fig. 4 is an assembly schematic diagram of an assembled and formed UHPC non-dismantling column template, and fig. 4-4 are structural schematic diagrams of an assembly process.

In the figure, 1 is a corner UHPC board; 2 is a middle UHPC plate of the pre-buried connecting piece; 2-1 is a middle UHPC board without connecting pieces; 2-2 is a pre-buried connecting piece.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the utility model described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The utility model is described in further detail below with reference to the accompanying drawings:

as shown in figure 1, the UHPC disassembly-free column template formed by assembly comprises four corner UHPC plates 1 positioned at four corners of the whole column template and four middle UHPC plates 2 positioned in the middle of each side of the whole column template, wherein the corner UHPC plates 1 and the middle UHPC plates 2 are connected together through connecting pieces pre-embedded at two sides of the middle UHPC plate to form the whole UHPC disassembly-free column template.

As shown in FIG. 2, the middle UHPC board 2 of the pre-buried connecting piece comprises a middle UHPC board 2-1 and a connecting piece 2-2, wherein the connecting piece 2-2 is pre-buried at two sides of the middle UHPC board. The connecting piece 2-2 is formed by welding a thin steel plate and a bolt, and specifically, the bolt is placed after a hole is formed in the thin steel plate, and then the bolt and the thin steel plate are welded together. The thin steel plate had a thickness of 1/10D and a width of 1.5D. And placing the connecting piece into a prepared die, paving an air bubble film at the bottom of the die, pouring UHPC, removing the die to form a middle UHPC plate 2 of the whole embedded connecting piece, and uniformly distributing round holes on the inner surface of the template.

As shown in fig. 3, the corner UHPC board of the present invention is formed by previously preparing a mold, laying a bubble film on the bottom of the mold, and casting UHPC to form a corner UHPC board having round holes on the inner surface. The length of two sides of the plate is equal, the end position is an L-shaped connecting part, bolt holes are arranged at the connecting part, the holes are formed together when the UHPC plate at the corner is poured, and the positions and the sizes of the holes correspond to the arrangement of the bolts in the connecting piece 2-2 one by one.

As shown in fig. 4-the installation process of the assembled and molded UHPC column-free form template of the present invention is as follows:

as shown in FIG. 4, two corner UHPC plates are firstly spliced with a middle UHPC plate with connecting pieces, bolts on the connecting pieces 2-2 penetrate through bolt holes on the corner UHPC plate 1 through the connecting pieces 2-2 pre-buried at two ends of the middle UHPC plate, and then nuts are screwed, so that the structure is shown in FIG. 4.

On the basis of fig. 4, the middle UHPC board with the connecting members is mounted on the corner UHPC boards 2 at both sides, respectively, and the mounting process is the same as that described above, and the structure is as shown in fig. 4.

Finally, the remaining 2 corner UHPC boards and the central UHPC board with connectors are installed on the basis of FIG. 4, the installation process is as described above, and the resulting structure is shown in FIG. 4.

The UHPC column-dismantling-free template formed by assembling is suitable for cast-in-place concrete columns, can be prefabricated in a factory according to the height, the section size and the like of the columns before concrete is poured, and the strength and the thickness of the UHPC template can be selected according to actual requirements. After the template is transported to the site, the installation mode can be selected according to the requirement, the template can be installed around the tied reinforcement cage in blocks like the traditional building template, the template can also be assembled into a whole firstly, and then the template is placed at the designated position by adopting a hoisting mode, so that the installation mode is flexible, and the construction is convenient. And the form does not need to be removed after the concrete is poured, so that the construction procedures are greatly reduced, and the time is saved. In addition, the existence of UHPC template has played the hoop effect to the core concrete, can improve the compressive capacity of core concrete, and then promotes the bearing capacity of post, compares with the core concrete, and UHPC has better tensile strength for the surface of post is difficult for producing the crack, can effectively reduce the corrosion rate of inside reinforcing bar, improves the life of structure.

The above contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention should not be limited thereby, and any modification made on the basis of the technical idea proposed by the present invention falls within the protection scope of the claims of the present invention.

Claims

1. An assembled and molded UHPC column template without disassembling is characterized by comprising 4 corner UHPC plates (1) and 4 middle UHPC plates (2), wherein the corner UHPC plates (1) and the middle UHPC plates (2) are mutually connected to form a hollow cuboid column mold, the 4 corner UHPC plates (1) are respectively positioned at four corners of the cuboid column mold, and the middle UHPC plate (2) is connected between the two corner UHPC plates (1);

the middle UHPC plate (2) is composed of a middle UHPC plate (2-1) and connecting pieces (2-2) pre-embedded at two sides of the middle UHPC plate (2-1), round holes are uniformly distributed on the inner surface of the UHPC plate (2-1), and a plurality of bolts are arranged on the connecting pieces (2-2);

the cross section of the corner UHPC plate (1) is L-shaped, round holes are uniformly distributed on the inner surface of the corner UHPC plate (1), and bolt holes corresponding to bolts of the connecting pieces (2-2) are formed in the connecting part of the corner UHPC plate (1).

2. An assembled UHPC column template according to claim 1, wherein the connecting piece (2-2) of the middle UHPC plate (2) is a steel plate, and a plurality of bolts are welded on the steel plate.

3. The assembled UHPC column template of claim 2, wherein the steel plate has a thickness of 1/10D, a width of 1.5D, and D is the thickness of the middle UHPC plate (2-1).

4. The assembly-formed disassembly-free post template of UHPC according to claim 1, wherein the corner UHPC panels (1) and the middle UHPC panels (2) have the same thickness not less than 20 mm.

5. The assembled and formed UHPC disassembly-free column template as recited in claim 4, wherein the connecting parts at two sides of the middle UHPC plate (2-1) are L-shaped steps of the pre-embedded connecting piece (2-2), and the connecting parts at two sides of the corner UHPC plate (1) are L-shaped steps;

the thickness of the connecting piece (2-2) is smaller than that of the connecting part of the middle UHPC plate (2-1), and the thickness of the connecting part of the corner UHPC plate (1) and the middle UHPC plate (2-1) is equal to half of that of the corner UHPC plate (1).

6. The assembly-formed UHPC column template without disassembling of claim 5, characterized in that the connecting part formed by buckling the connecting part of the middle UHPC plate (2) and the connecting part of the corner UHPC plate (1) is the same as the thickness of the middle UHPC plate (2-1) and the corner UHPC plate (1).

7. The assembly-formed UHPC disassembly-free column template of claim 1, wherein the bolts are uniformly distributed at intervals of 10cm along the length direction of the connecting piece (2-2).

8. The assembly-formed UHPC column die plate without disassembling of claim 1, characterized in that the inner surface circular holes of the corner UHPC plate (1) and the middle UHPC plate (2) are formed by bubble films.