CN110847374A

CN110847374A - Assembly type core tube structure and application construction method thereof

Info

Publication number: CN110847374A
Application number: CN201911270602.8A
Authority: CN
Inventors: 程美涛; 徐巍; 许梦雅; 臧海宁
Original assignee: Shanghai Construction No 5 Group Co Ltd
Current assignee: Shanghai Construction No 5 Group Co Ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-02-28

Abstract

The invention relates to an assembled core tube structure and an application construction method thereof. The assembled core tube structure comprises a plurality of core tube units which are sequentially stacked, and each core tube unit comprises four shear walls, edge members, grouting sleeves and glue injection sleeves. The shear walls are sequentially and adjacently arranged to form a cylindrical structure, and the edge members are filled between the shear walls; the grouting sleeves are arranged on the shear walls, and the shear walls of the adjacent core tube units are connected through the grouting sleeves; the glue injection sleeve is arranged on the edge component, and the edge components of the adjacent core tube units are connected through the glue injection sleeve. The prefabricated core tube structure is high in prefabrication rate and convenient to manufacture, and construction quality is guaranteed at the same time. In addition, the application construction method of the assembled core tube structure is simple in steps, convenient to operate and suitable for popularization and application.

Description

Assembly type core tube structure and application construction method thereof

Technical Field

The invention relates to the field of fabricated buildings, in particular to a fabricated core tube structure and an application construction method thereof.

Background

For the increasingly developed building market in China, the defects of a cast-in-place structure system tend to be obvious. In the face of these problems, the success experience of the building industrialization in foreign countries is combined, and the wave of the assembly type building industrialization is lifted in the building industry in China, so that the development of the assembly type building industrialization enters a brand-new era, and the great change of the production mode in the building field is promoted.

The fabricated building is a building which is formed by transferring a large amount of field operation work in the traditional construction mode to a factory, processing and manufacturing building components and accessories (such as floor slabs, wall slabs, stairs, balconies and the like) in the factory, transporting the components and accessories to a building construction site, and assembling and installing the components and the accessories on the site in a reliable connection mode. The prefabricated building mainly comprises a prefabricated concrete structure, a steel structure, a modern wood structure building and the like, and is a representative of a modern industrial production mode due to the adoption of standardized design, factory production, assembly construction, informatization management and intelligent application.

However, as the prefabricated building is developed vigorously, the requirements for the prefabricated rate of the single body are continuously increased, the prefabricated edge components are complicated in deepened design, the factory manufacturing is troublesome, and the field installation is difficult. Therefore, in order to improve the monomer prefabrication rate, facilitate factory manufacturing and ensure construction quality, the invention of the assembled sleeve connection core tube structure system is a technical problem to be solved urgently in the industry.

Disclosure of Invention

In view of the above, there is a need to provide an assembled core tube structure and an application construction method thereof, which have high monomer prefabrication rate and convenient manufacturing and ensure construction quality.

An assembled core barrel structure comprising a plurality of sequentially stacked core barrel units, the core barrel units comprising:

the four shear walls are sequentially and adjacently arranged to form a cylindrical structure;

the edge members are filled between the shear walls;

the grouting sleeves are arranged on the shear walls, and the shear walls of the adjacent core tube units are connected through the grouting sleeves;

and the glue injection sleeves are arranged on the edge components, and the edge components of the adjacent core tube units are connected through the glue injection sleeves.

In one embodiment, the edge member comprises a precast segment and a cast in place segment, the cast in place segment being located at both ends of the precast segment.

In one embodiment, the number of the cast-in-place sections is two, the glue injection sleeve is arranged in one cast-in-place section, and the connecting steel bar is arranged in the other cast-in-place section.

In one embodiment, a corner region is formed between adjacent shear walls, and the edge member is located in the corner region and matches the shape of the corner region.

In one embodiment, an inner formwork is arranged on the side surface of the cast-in-place section, which is close to the cylindrical structure.

In one embodiment, an external formwork is arranged on the side surface of the cast-in-place section, which is far away from the cylindrical structure.

In one embodiment, the shear wall is further provided with a plurality of embedded steel bars, and the embedded steel bars and the grouting sleeves are respectively located at two opposite ends of the shear wall.

In one embodiment, the location of the embedded steel bars on the shear wall corresponds to the location of the grout sleeve on the shear wall.

In one embodiment, the number of the grouting sleeves is multiple, and the grouting sleeves are uniformly arranged along the length direction of the shear wall.

The application construction method of the assembled core tube structure comprises the following steps:

integrally prefabricating a shear wall to form a cylindrical structure, wherein the shear wall is provided with a grouting sleeve;

prefabricating edge components, and filling the edge components in an included angle area between the shear walls to form a core cylinder unit; wherein the edge component is provided with a glue injection sleeve;

stacking the core tube units, connecting the upper shear wall and the lower shear wall through the grouting sleeve, and connecting the upper edge member and the lower edge member through the glue injection sleeve;

and injecting grouting material into the grouting sleeve, and injecting sizing material into the glue injection sleeve to finish the construction of the assembled core tube structure.

Above-mentioned assembled core section of thick bamboo structure, shear force wall can be whole prefabricated to realize the connection of shear force wall in the core section of thick bamboo unit from top to bottom through grout sleeve, edge component passes through the connection of edge component in the core section of thick bamboo unit from top to bottom of injecting glue sleeve realization. Compared with the traditional shear wall, the four shear walls of the assembled core tube structure can be integrally prefabricated on site and then directly hoisted, so that the prefabrication rate and the construction speed of an assembled building are improved. In addition, the edge members are connected through the glue injection sleeve, so that the connection of the shear walls in the adjacent core tube units and the connection of the edge members can be completed at one time, and the construction efficiency is improved. Therefore, the prefabricated core tube structure is high in prefabrication rate and convenient to manufacture, and construction quality is guaranteed at the same time. In addition, the application construction method of the assembled core tube structure is simple in steps, convenient to operate and suitable for popularization and application.

Drawings

FIG. 1 is a formal diagram of a core barrel unit of an assembled core barrel structure of an embodiment;

FIG. 2 is a cross-sectional view A-A of the fabricated core barrel construction of FIG. 1;

fig. 3 is a B-B sectional view of the fabricated core barrel structure shown in fig. 1.

Detailed Description

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.

The fabricated core tube structure of the present invention is particularly applicable to a frame structure or a core tube structure with an elevator, which will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1 to 3, the fabricated core tube structure of an embodiment includes a plurality of core tube units 1 stacked in sequence, and the core tube units 1 include four shear walls 10, edge members 20, grouting sleeves 12, and glue injection sleeves 22. The shear walls 10 are sequentially and adjacently arranged to form a cylindrical structure, and the edge members 20 are filled between the shear walls 10; the grouting sleeves 12 are arranged on the shear walls 10, and the shear walls 10 of the adjacent core barrel units 1 are connected through the grouting sleeves 12; the glue injection sleeve 22 is disposed on the edge member 20, and the edge members 20 of the adjacent core barrel units 1 are connected through the glue injection sleeve 22.

According to the needs of construction, assembled core section of thick bamboo structure can set to different heights, generally, core section of thick bamboo structure can include a plurality of core section of thick bamboo units 1, with a plurality of core section of thick bamboo units 1 from the bottom up range upon range of formation core section of thick bamboo structure in proper order. For ease of illustration, fig. 1 shows only one core barrel unit 1.

As shown in fig. 2 and 3, the core tube unit 1 includes four shear walls 10, and the four shear walls 10 are sequentially arranged adjacently to form a tube-shaped structure. As shown in fig. 1, the shear wall 10 includes first and second oppositely disposed ends. Wherein, the first end is provided with embedded steel bar 14, and the second end is provided with grout sleeve 12. When the upper and lower core tube units 1 are assembled, the embedded steel bars 14 of the upper core tube unit 1 can be inserted into the grouting sleeve 12 of the lower core tube unit 1. And then grouting material is injected into the grouting sleeve 12, and when the grouting material is solidified, the connection of the upper core barrel unit 1 and the lower core barrel unit 1 is realized. The shear wall 10 is connected by the grouting sleeve 12, construction is simple and convenient, and no additional formwork is required on site.

In the present embodiment, the number of the grouting sleeves 12 is plural, and the plural grouting sleeves 12 are arranged along the length direction of the shear wall 10. Correspondingly, the number of the embedded steel bars 14 is also multiple, and the embedded steel bars 14 and the grouting sleeves 12 are respectively located at two opposite ends of the shear wall 10. The embedded steel bars 14 and the grouting sleeves 12 are used for connecting adjacent core tube units 1, and the embedded steel bars and the grouting sleeves correspond to each other in arrangement positions on the shear wall 10, so that the core tube units 1 can be conveniently assembled, and the construction efficiency is improved.

With continued reference to fig. 1 and 2, the shear wall 10 is shaped like a rectangular parallelepiped, and four shear walls 10 are disposed adjacent to each other in sequence to form a cavity shaped like a rectangular parallelepiped. Because the shear walls 10 have a certain thickness, an included angle region exists between the adjacent shear walls 10. Correspondingly, in the present embodiment, the number of the corner regions is 4. The edge member 20 is located in the angled region and matches the shape of the angled region to ensure the integrity of the appearance of the core barrel unit 1. In the present embodiment, the edge member 20 has an L-shape, and two side edges thereof are respectively used for connecting with the adjacent shear walls 10.

In this embodiment, the edge member 20 includes a prefabricated section 200 and a cast-in-place section 202, the cast-in-place section 202 is located at two ends of the prefabricated section 200, and the glue injection sleeve 22 is disposed on the cast-in-place section 202. The number of cast-in-place sections 202 is two, and the two cast-in-place sections 202 are respectively located at two opposite ends of the prefabricated section 200. During actual construction, the precast segment 200 can be precast, and the cast-in-place segment 202 is a post-cast area. After the shear walls 10 of the upper core tube unit 1 and the lower core tube unit 1 are assembled, the prefabricated sections 200 of the edge members 20 are arranged in the included angle area, then cast-in-situ sections 202 of the edge members 20 are formed by casting, the glue injection sleeves 22 and the reserved steel bars 24 are respectively arranged on the two cast-in-situ sections 202, then the reserved steel bars 24 of the upper core tube unit 1 are inserted into the glue injection sleeves 22 of the lower core tube unit 1, and the connection of the edge members 20 is completed. Wherein, the reserved steel bar 24 and the glue injection sleeve 22 are cast in situ in the cast-in-place section 202 and are formed at one time.

The connection mode of the reserved steel bars 24 of the cast-in-place section 202 of the edge member 20 is the connection mode of the glue injection sleeve 22. The glue injection sleeve 22 differs from the grout sleeve 12 by: (1) the glue injection space is small, the steel bars with the same diameter are connected, and the outer diameter of the glue injection sleeve 22 is smaller than that of the grouting sleeve 12. (2) The glue injection sleeve 22 has only one grouting opening, and the slurry is discharged from two ends of the glue injection sleeve 22. (3) Resin sizing material is used to replace grouting material.

As shown in FIG. 2, in this embodiment, an interior formwork 30 is provided in the cast-in-place section 202 adjacent to the side of the tubular structure. Because the cast-in-place section 202 is fabricated in situ, the inner mold shell 30 may function as a formwork. Further, in this embodiment, the cast-in-place section 202 is provided with an external formwork on the side far away from the tubular structure. Likewise, the outer mold shell may also function as a template. Wherein the inner mold shell 30 and the outer mold shell are set before the cast-in-place section 202 is poured. In other embodiments, no exterior form can be provided when used for transverse connection of the core tubular structural edge members 20.

Compared with the traditional shear wall 10, the assembled core tube structure can be integrally prefabricated, can be directly hoisted on site, and has the construction speed improved by more than three times. Meanwhile, the edge members 20 are connected by the glue injection sleeves 22, so that the construction method is optimized, the construction period is shortened, 50% of labor cost can be saved, the connection of the steel bars in the cast-in-place area and the pouring of concrete are completed at one time, and the construction efficiency is improved. Therefore, the assembled core tube structure can improve the monomer prefabrication rate, can also enable the site to be less in modeling and free of modeling, can save 50% of labor cost and 40% of construction period, reduces the collision of reinforcing steel bars at nodes, is convenient for site construction, improves the construction efficiency and ensures the construction quality.

An application and construction method of the fabricated core tube structure will be described below, and the application and construction method of the fabricated core tube structure includes the following steps:

step one, prefabricating the shear wall 10 integrally to form a cylindrical structure, wherein the shear wall 10 is provided with a grouting sleeve 12. Four shear walls 10 are sequentially arranged adjacently to form a cylindrical structure, and the upper core barrel unit 1 and the lower core barrel unit 1 are connected through a grouting sleeve 12.

Step two, prefabricating edge members 20, and filling the edge members 20 between the shear walls 10 to form a core tube unit 1; wherein the edge member 20 is provided with a glue injection sleeve 22. The edge members 20 comprise prefabricated sections 200 and cast-in-place sections 202, the cast-in-place sections 202 are respectively located at two opposite ends of the prefabricated sections 200, the glue injection sleeves 22 are arranged on the cast-in-place sections 202, and the edge members 20 of the upper core barrel unit 1 and the lower core barrel unit 1 are connected through the glue injection sleeves 22.

And step three, laminating the core tube units 1, connecting the upper shear wall 10 and the lower shear wall 10 through the grouting sleeve 12, and connecting the upper edge member 20 and the lower edge member 20 through the glue injection sleeve 22. The connection between the upper and lower adjacent core tube units 1 is completed through the grouting sleeve 12 and the glue injection sleeve 22.

And fourthly, injecting grouting material into the grouting sleeve 12 and injecting glue stock into the glue injection sleeve 22 to finish the construction of the assembled core tube structure.

The application construction method of the assembled core tube structure is simple in steps, convenient for field construction, beneficial to improving the construction efficiency and capable of guaranteeing the construction quality.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An assembled core tube structure, characterized in that core tube structure includes a plurality of core tube units that stack up in proper order, core tube unit includes:

the edge members are filled between the shear walls;

2. The fabricated core barrel structure of claim 1, wherein the rim member comprises a prefabricated section and a cast-in-place section, the cast-in-place section being located at both ends of the prefabricated section.

3. The fabricated core tube structure of claim 2, wherein the number of the cast-in-place sections is two, one of the cast-in-place sections is provided with the glue injection sleeve, and the other cast-in-place section is provided with a reserved steel bar.

4. The fabricated core barrel structure of claim 1, wherein adjacent shear walls form an angle-clip region therebetween, the edge member being located in the angle-clip region and matching the shape of the angle-clip region.

5. The fabricated core tubular structure of claim 2, wherein an inner formwork is provided at a side of the cast-in-place section adjacent to the tubular structure.

6. The fabricated core tubular structure of claim 5, wherein an exterior formwork is provided on a side of the cast-in-place section remote from the tubular structure.

7. The assembled core tube structure of claim 1, wherein the shear wall is further provided with a plurality of embedded steel bars, and the embedded steel bars and the grouting sleeves are respectively located at two opposite ends of the shear wall.

8. The fabricated core barrel structure of claim 7, wherein the position of the embedded rebar on the shear wall corresponds to the position of the grout sleeve on the shear wall.

9. The fabricated core tube structure of claim 1, wherein the number of the grout sleeve is plural, and the plurality of grout sleeves are uniformly arranged along a length direction of the shear wall.

10. A method of applying a fabricated core tube structure according to any one of claims 1 to 9, comprising the steps of:

prefabricating edge members, and filling the edge members between the shear walls to form a core barrel unit; wherein, the edge component is provided with a glue injection sleeve;