KR20220049720A - Rapid Construction Structure of Core Part Using Multi-Story Precast Wall - Google Patents

Abstract

The present invention relates to a rapid construction structure of a core part using a multi-story precast wall. A purpose of the present invention is to provide the rapid construction structure of a core part using a multi-story precast wall, which is capable of improving durability of a connection part between constructed precast concrete (PC) wall members and enabling a rapid and easy construction work by a connection method, thereby obtaining a vertical traffic line for a site work in advance and reducing construction periods at the same time. Therefore, to achieve the purpose of the present invention, an uneven placement groove is formed on one side of the PC wall member, and an auxiliary binding groove and a horizontal steel bar are formed on the other side of the PC wall member. After then, the two or more PC wall members are installed and connected. The horizontal steel bar formed as a PC wall in one of the two or more PC wall members connected is inserted into the uneven placement groove formed as another PC wall member by a contact closing method. A vertical steel bar is additionally inserted and installed in the closed uneven placement groove in which the horizontal steel bar is inserted. At the same time, non-shrinkage mortar is placed, and the two or more PC walls are fixed and connected by the placed non-shrinkage mortar.

Description

Rapid Construction Structure of Core Part Using Multi-Story Precast Wall

The present invention relates to apartment building construction technology, and more specifically, in constructing the basement core of an apartment house such as a stairwell or an elevator, a construction method that relied on the existing RC (Reinforced Concrete) method is precast (PC: Precast). Concrete) method and applied, but with the converted precast method, the mutual organic coupling method and structure of PC members, such as PC wall members and PC slab members, are newly improved to provide vertical movement lines for field work. It relates to a core part rapid construction structure using a precast wall having a multi-layer height so that it can be secured at an early stage and, accordingly, the air can be shortened more efficiently.

A space where people lead their lives due to the urban concentration of the population following rapid economic development and the consequent rise in land prices. For example, in the case of residential structures, the supply of multi-unit housing such as apartments is expanding, and the demand for them is rapidly increasing.

As the apartment house adopts a spatial structure for each floor that can accommodate multiple households in one building, it is possible to save the construction site and construction cost, and in particular, the problem of housing shortage due to the intensive use of land in a limited area. It has the advantage of being able to solve the problem efficiently.

On the other hand, when constructing a high-rise apartment house such as an apartment, one of the important parts to be considered is the design of the core.

For example, the core refers to a certain space in which various functions are concentrated in order to provide a smooth supply of various machines, electricity, and communications while in charge of the vertical movement of users within a building, such as stairs, elevators, toilets, and shafts for supply and plumbing. Because the use of the building is determined according to the location of the core, planning and design of the size and location of the core facility is a very important part in the construction of a multi-story structure.

In the core construction of a multi-storey common house, looking at the conventional construction method that is generally widely used, it can be seen that the situation usually depends on the RC (Reinforced Concrete) construction method.

Here, the RC (Reinforced Concrete) method is the most common method of constructing structural parts such as columns, beams, load-bearing walls, and slabs in an integrated form through the process of "reinforcement processing - formwork installation - concrete pouring - curing - formwork dismantling". It refers to a construction method, for example, a reinforced concrete construction method.

However, while the above-described reinforced concrete construction method has excellent durability and fire resistance, and easy supply and demand of materials, construction cost increases due to excessive construction period required for curing process and formwork dismantling work, etc. Alternatively, it is not easy to work during demolition and generates a large amount of waste, and in particular, there is a disadvantage in that construction is difficult in winter.

Alternatively, as described above, as the reinforced concrete construction method takes a labor-dependent method, for example, a method that requires a large number of construction workers, it is difficult to expect a relatively rapid process progress, thereby affecting the subsequent process, There are still problems that delay the construction period and overspend labor costs.

Korean Patent Publication No. 10-2020-0098239 (published on 20.08.2020) Republic of Korea Patent Registration No. 0768081 (Registered on October 11, 2007)

Therefore, the present invention was devised to solve the general problems of the conventional apartment building basement core construction structure;

An object of the present invention is, in the construction of the basement core of an apartment house, a precast (PC: Precast Concrete) method, for example, a concrete structure is molded into a reusable molding member (PC wall member) by a casting operation, and the molded A method of tilting-up by transporting a molding member (PC wall member) to a work site is used, but an uneven casting groove and horizontal reinforcing bar are formed in the PC wall member constructed by the precast method, and unevenness In installing and connecting the pouring groove and the PC wall member having the horizontal reinforcement in two or more configurations, the horizontal reinforcement formed by the PC wall member on one side is inserted into the uneven casting groove formed by the PC wall member on the other side in a close-close manner, and the horizontal reinforcement is Insert and install vertical reinforcing bars again as an additional configuration into the inserted and closed concavo-convex casting grooves, and then pour non-shrinkage mortar into the concavo-convex casting grooves into which horizontal and vertical reinforcing bars are inserted. By making the above PC wall members fixedly joined, the durability of the connection part between the PC wall members is increased, and at the same time, it is possible to quickly and easily perform construction work by such a joining method, thereby providing a vertical flow line for field work. By using multi-layered precast walls that can greatly increase work efficiency, economic feasibility, and construction safety, such as to ensure that it can be secured early, as well as to shorten the construction period as well as reduce the number of workers. To provide a core part rapid construction structure.

In addition, an object of the present invention is, in casting and molding a PC wall member, the uneven casting groove formed of the PC wall member is molded by a breakage prevention mold, and after the molding is completed, the PC wall member is combined as it is. By transporting the wall members to the work site and performing the joint installation work between the PC wall members in a way that removes the damage-preventing mold from the transported PC wall just before construction, It is to provide a core part rapid construction structure using a multi-layered precast wall to prevent crack damage at the source.

Looking at the core part rapid construction structure using the multi-layered precast wall according to the present invention for achieving the above object, it is formed in a configuration including a PC wall member and a PC slab member cast and molded by a precast method. ;

The PC wall member forms an uneven casting groove on one side and an auxiliary fastening groove and horizontal reinforcement on the other side;

Thereafter, the PC wall member is installed and connected in two or more configurations, and among the PC wall members connected in the two or more configurations, a horizontal reinforcing bar formed from one PC wall is used as a concave-convex casting groove formed by the other PC wall member In a close-close manner, the horizontal reinforcing bars are inserted and vertical reinforcing bars are additionally inserted and installed in the closed concavo-convex casting grooves, and at the same time pouring non-shrinkage mortar, It is achieved by making the PC wall fixedly joined.

Above, the core part rapid construction structure using the multi-layer height precast wall according to the present invention forms an uneven casting groove and horizontal reinforcement in the PC wall member, and then, the PC wall member in which the uneven casting groove and horizontal reinforcement are formed. In installing and connecting two or more components, the horizontal reinforcing bar formed by one PC wall member is inserted into the concave-convex casting groove formed by the other side PC wall member in a close-close manner, and the horizontal reinforcing bar is inserted and vertical reinforcing bar again in the closed concave-convex casting groove is inserted and installed as an additional configuration and the non-shrink mortar is poured at the same time, and two or more PC walls are fixedly joined by the poured non-shrink mortar, which increases the durability of the connection part between the PC wall members and At the same time, it enables quick and easy construction work to be carried out so that a vertical movement line for on-site work can be secured at an early stage. It provides the effect of increasing safety, etc.

Alternatively, the core part rapid construction structure using the multi-layered precast wall according to the present invention is formed by molding the uneven casting groove formed of the PC wall member by a breakage prevention mold, and PC as it is in the form in which the breakage prevention mold is combined After transporting the wall members to the work site and removing the breakage prevention mold just before construction, the joint installation work between the PC wall members was performed. It is prevented, and provides a very useful expected effect.

1 is an exploded perspective view of a PC wall member and a PC slab member applied to the present invention;
Figure 2 is a cross-sectional view of the construction state of the PC wall member applied to the present invention;
3 is a cross-sectional view of the construction state of the PC wall member and the PC slab member applied to the present invention;
4 is an enlarged cross-sectional view of the main part of the breakage prevention mold applied to the present invention;
5 is an exploded perspective view of this embodiment of a PC wall member and a PC slab member applied to the present invention;
6 is a cross-sectional view of the construction state of this embodiment of the PC wall member applied to the present invention;

DETAILED DESCRIPTION The following detailed description is provided to provide a comprehensive understanding of the methods, apparatus and/or systems, structures described herein. However, this is merely an example, and the present invention is not limited thereto.

In describing the embodiments of the present invention, if it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. And, the terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to intentions or customs of users and operators. Therefore, the definition should be made based on the content throughout this specification. The terminology used in the detailed description is for the purpose of describing embodiments of the present invention only, and should in no way be limiting.

Unless explicitly used otherwise, expressions in the singular include the meaning of the plural. In this description, expressions such as “comprising” or “comprising” are intended to indicate certain features, numbers, steps, operations, elements, some or a combination thereof, and one or more other than those described. It should not be construed to exclude the presence or possibility of other features, numbers, steps, acts, elements, or any part or combination thereof.

Hereinafter, a preferred embodiment configuration of a core part rapid construction structure using a multi-layered precast wall according to the present invention will be described in detail based on the accompanying drawings.

Looking at the schematic configuration of the core part rapid construction structure using the multi-layered precast wall according to the present invention with reference to the accompanying drawings, this is a PC wall member (1) and a PC slab member cast and molded by a precast method It is composed of (2).

Here, first, the PC wall member 1 is a kind of assembly part for forming the wall structure of the basement core in the construction of the basement core of the apartment house, which is a form in which molded reinforcing bars (not shown) are embedded. It takes a plate-shaped structure cast and molded by concrete. In applying such a PC wall member 1 to the present invention, as shown in FIG. 1, the gap is gradually increased toward the inner surface at one end. A narrow trapezoidal-shaped concave-convex casting groove 11 is formed, an auxiliary fastening groove 12 having a predetermined depth is formed at the other end, and a plurality of line spacing arrangement is formed on the inner surface of the auxiliary fastening groove 12, The protruding horizontal reinforcing bar 13 is formed into a buried structure, and again, as shown in FIG. 1 on the inner upper surface of the PC wall member 1, a half pen box 14 in which the variable reinforcing bar 141 is accommodated is installed and formed. , Anchor bolts 15 are formed on the lower surface of the half pen box 14 installation part spaced apart from each other by a predetermined interval, and an assembly angle 16 that is fastened to the anchor bolt 15 in a detachable structure is provided. This is preferable.

At this time, in the above-described PC wall member (1), the concave-convex casting groove (11), the concave-convex projection as shown in the partially enlarged view of FIG. For example, it further forms the shear reinforcement concave-convex key 111, and in addition, it has a feature of being cast and molded by a separately provided breakage prevention mold 300 according to such shape characteristics, and the breakage prevention mold used here ( 300), as shown in FIG. 4, takes a block body configuration of a predetermined length having a trapezoidal cross section, and a plurality of frame fixing bolts 301 in the center of the inner surface are arranged at regular and repetitive intervals. After the installation and formation, the separation prevention piece 302 fastened to the formwork fixing bolt 301 in a detachable and attachable structure is further coupled and formed.

As another supplementary explanation, in the above-described PC wall member 1, the halfpen box 14 is a reasonable installation connection of reinforcing bars, for example, ordinary concrete reinforcing bars used to connect structures by unfolding rebars bent at right angles. It means an iron plate box for joints, and the halfpen box 14 applied to the present invention also uses such a conventional iron plate box for reinforcing steel bars as it is, and detailed configuration and function descriptions thereof will be omitted.

In addition, the PC slab member 2 is a kind of assembly part for forming the floor or ceiling structure of the basement core in the construction of the basement core of the apartment house. As such, the PC slab member 2 is shown in FIG. 1 Or, as shown in FIG. 3, it is preferable to form a plate-shaped structure cast and molded by concrete in a form in which a forming reinforcing bar (not shown) is embedded.

Therefore, the part used for the core part rapid construction structure utilizing the multi-layer height precast wall according to the present invention having the configuration as described above. For example, the assembly relationship between the PC wall member (1) and the PC slab member (2) and the construction structure of the basement floor core of an apartment building using the PC wall member (1) and the PC slab member (2) are as follows.

First, under the condition that two or more PC wall members 1 are prepared according to the wall area of the basement core structure to be built, any one PC wall member 1 among the PC wall members 1 provided with the two or more configurations As shown in FIG. 2, the horizontal reinforcing bar 13 formed of ) is inserted into the concave-convex casting groove 11 formed of the other PC wall member 1 in a close-close manner.

Next, as shown in Fig. 1 or 2, the vertical reinforcing bar (S) provided as a separate additional reinforcing means in the concave-convex casting groove 11 in which the horizontal reinforcing bar 13 is inserted is installed in an upright insertion structure. And, in this way, a non-shrinkable mortar 100, for example, a mortar with a function that does not shrink in the curing process, is poured into the uneven casting groove 11 into which the horizontal reinforcing bar 13 and the vertical reinforcing bar S are inserted, and the Two or more PC wall members 1 are joined as a fixed structure by the hardening action of the poured non-shrink mortar 100 to form the wall structure of the basement core of the apartment building in the area to be built.

Thereafter, as shown in FIG. 3 , the PC slab member 2 is mounted on the upper surface of the PC wall member 1 formed of the wall structure using the assembly angle 16 as a supporting means, and the PC slab is as described above. Under the state in which the member 2 is mounted, the variable reinforcing bars 141 of the half pen box 14 are spread out in a horizontal structure to be located on the upper surface of the PC slab member 2 .

Continuously, the topping concrete 400 is poured to a predetermined thickness on the upper surface of the PC slab member 2 in which the variable reinforcing bar 141 is spread, and the PC wall member ( 1) bonding the PC slab member 2 to the upper surface in a fixed structure;

Again, as a finishing process, after confirming that the PC wall member 1 and the PC slab member 2 are firmly fixed to each other by the topping concrete 400, the anchor bolt supporting the PC slab member 2 ( 15) and the assembly angle 16 are separated and removed to implement a core part rapid construction structure utilizing the multi-layered precast wall according to the present invention.

At this time, as described above, in a series of construction processes, the uneven casting groove 11 formed of the PC wall member 1 has poor durability depending on the shape characteristics, so in the handling process such as transportation, damage and There is a risk of damage. Therefore, the breakage prevention mold 300 used to form the uneven casting groove 11 is coupled to the uneven casting groove 11, and the PC wall member 1 is installed at the work site. After removing the breakage prevention mold 300 through the loosening operation of the detachment prevention piece 302 coupled to prevent the breakage prevention mold 300 from being separated just before the construction of the structure, the PC wall member (1) ) is installed and connected in two or more configurations.

Meanwhile, FIG. 5 is an exploded perspective view of a PC wall member and a PC slab member applied to this embodiment of the present invention, and FIG. 6 is a cross-sectional view showing a construction state of the PC wall member applied to this embodiment of the present invention.

Hereinafter, in describing the core part rapid construction structure using the multi-layer height precast wall according to this embodiment of the present invention, the same configuration having the same function as the above-described embodiment has the same name for convenience of explanation. to use the same code as

Accordingly, in the present invention as this embodiment, as shown in FIGS. 5 and 6, the configuration of the concave-convex casting groove 11 formed of the PC wall member 1 in the above-described embodiment configuration is shown in FIGS. 5 and 6, one side is open. It is preferable to convert it into an open pouring groove 17 that has been used.

Therefore, in installing and connecting the PC wall member 1 according to this embodiment in which the open pouring groove 17 is formed in two or more configurations, first, among the PC wall members 1 connected in two or more configurations , the horizontal reinforcing bar 13 formed of one PC wall member (1) is inserted and accommodated in the open casting groove (17) formed of the other PC wall member (1).

Next, as shown in Fig. 5 or 6, a vertical reinforcing bar (S) provided as a separate additional reinforcement means on the inner surface of the open casting groove 17 into which the horizontal reinforcing bar 13 is inserted is installed in an upright insertion structure. And, as such, the open side of the open casting groove 17 in which the horizontal reinforcing bar 13 and the vertical reinforcing bar (S) are inserted is installed in close contact with the form tie fastening method, for example, the spacing bolt (B). It is finished in a closed structure by the formwork (200).

Again, pour the non-shrinkable mortar 100 into the open pouring groove 17 finished with a closed structure by the formwork 200, and two or more PC wall members ( After fixing and bonding 1), by separating and removing the formwork 200, the core part rapid construction structure utilizing the multi-layer height precast wall according to the present invention is implemented.

1: PC wall member 2: PC slab member
11: Concave-convex casting groove 12: Auxiliary fastening groove
13: horizontal reinforcing bar 15: half pen box
15: anchor bolt 16: assembly angle
17: open pouring groove 100: non-shrink mortar
151: formwork 300: damage prevention mold
400: topping concrete S: vertical reinforcement

Claims (5)

including a PC wall member (1) and a PC slab member (2) cast and molded by a precast method;
The PC wall member (1) is gradually narrowed toward the inner surface at one end, and a trapezoidal concavo-convex casting groove (11) is formed with a shear reinforcement concave-convex key (111) on the narrow inner surface in an integrated configuration. , forming an auxiliary fastening groove 12 at the other end and a plurality of horizontal reinforcing bars 13 protruding in a line spacing arrangement on the inner surface of the auxiliary fastening groove 12;
Installed and connected the formed PC wall member (1) in two or more configurations, but among the PC wall members (1) connected in the two or more configurations, horizontal reinforcing bars (13) formed of any one PC wall member (1) is inserted into the concave-convex casting groove 11 formed of the other PC wall member 1 in a close-close manner, and the horizontal reinforcing bar 13 is inserted and the vertical reinforcing bar (S) is inserted into the closed concave-convex casting groove 11 It is additionally installed with an upright insertion structure, and the non-shrinkage mortar 100 is poured into the concavo-convex casting groove 11 that is closed with the horizontal reinforcing bar 13 and the vertical reinforcing bar (S) inserted, and the poured non-shrinkage mortar 100 ), a core part rapid construction structure using a precast wall of multi-layer height, characterized in that two or more PC wall members (1) are fixedly joined by
The method of claim 1 ;
The PC slab member 2 includes those formed in a plate-like structure in which forming reinforcing bars are embedded;
The PC wall member 1 installed and connected in two or more configurations includes a half pen box 14 in which a variable reinforcing bar 141 is accommodated on the inner upper surface, and an anchor bolt 15 on the lower surface of the half pen box 14 installation site. , to further combine the assembly angle 16 fastened to the anchor bolt 15;
The PC wall member (1) and the PC slab member (2) formed above are combined and installed to construct a structure, but the installation structure uses the assembly angle (16) as a supporting means and a PC slab member on the upper surface of the PC wall member (1) (2) mounted;
Expanding the variable reinforcing bar 141 of the half pen box 14 in a horizontal structure on the upper surface of the PC slab member 2 under the state in which the PC slab member 2 is mounted;
The topping concrete 400 is poured on the upper surface of the PC slab member 2 in which the variable reinforcing bars 141 are spread out, and the PC slab member 2 is placed on the upper surface of the PC wall member 1 by the topping concrete 400. A core part rapid construction structure using a multi-layered high precast wall, characterized by fixing and bonding the
The method of claim 1 ;
The uneven casting groove 11 of the PC wall member 1 is formed as an open casting groove 17 with one side open;
Any one of the PC wall members (1) among the PC wall members (1) connected to the two or more configurations, but the PC wall member (1) having the open pouring groove (17) formed therein is installed and connected in two or more configurations ) and insert the horizontal reinforcing bar 13 formed of the other PC wall member 1 into the open casting groove 17 formed of;
Installing the vertical reinforcement (S) in an upright insertion structure on the inner surface of the open casting groove (17) into which the horizontal reinforcement (13) is inserted;
finishing the open side of the open casting groove 17 into which the horizontal reinforcing bar 13 and the vertical reinforcing bar S are inserted into a closed structure by the formwork 200 having a form tie fastening method;
The non-shrinkable mortar 100 is poured into the open pouring groove 17 finished in a closed structure by the formwork 200, and two or more PC wall members (1) by the poured non-shrinkable mortar 100 Basement core construction structure of an apartment building using a precast method, characterized by fixing and bonding the
The method of claim 1 ;
The uneven casting groove 11 formed of the PC wall member 1 is cast and molded by a breakage prevention mold 300, and the breakage prevention mold 300 takes a block body configuration having a trapezoidal cross section, , The form fixing bolt 301 and the form fixing bolt 301 on the inner surface is fastened to the breakage-preventing mold 300, the separation prevention piece 302 to prevent the separation further coupled to form;
Immediately before construction of the structure by transporting the PC wall member 1 to the work site in a state in which the breakage prevention mold 300 is coupled, the PC wall member 1 is removed from two or more A core part rapid construction structure using a multi-story precast wall characterized by installation and connection in the configuration.
3. The method of claim 2;
The anchor bolt 15 and the assembly angle 16 are separated and removed after the PC slab member 2 is fixedly installed on the upper surface of the PC wall member 1 by the topping concrete 400 in a joint structure. Core part rapid construction structure using high precast wall.

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