KR102484159B1 - Rapid Construction Structure of Core Part Using Multi-Story Precast Wall - Google Patents

Abstract

The present invention relates to a rapid construction structure for a core part utilizing a precast wall of multi-layer height, and the purpose of the technology implementation is to. It increases the durability of the connection between the PC wall members to be constructed, and enables quick and easy construction work by such a joining method to secure vertical circulation for field work at an early stage and at the same time air It is to provide a core part rapid construction structure utilizing a precast wall of multi-layer height to shorten the Therefore, specific means of the present invention for achieving the above object are; Forming a concavo-convex installation groove on one side of the PC wall member and an auxiliary fastening groove and horizontal reinforcing bars on the other side; Thereafter, the PC wall members are installed and connected in two or more configurations, and among the PC wall members connected in the two or more configurations, the horizontal reinforcing bar formed by one PC wall member is formed in the uneven casting groove formed by the other PC wall member. is inserted in a close closing manner, the horizontal reinforcing bars are inserted, and vertical reinforcing bars are further inserted and installed as an additional configuration in the closed concave-convex casting groove, and at the same time, non-shrinkage mortar is poured, and two or more It is achieved by fixing the PC wall.

Description

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

The present invention relates to an apartment house construction technology, and more particularly, 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 was used as a precast (PC: Precast) method. Concrete) method, but by newly improving the mutually organic coupling method and structure of PC members constructed with the converted precast method, such as PC wall members and PC slab members, vertical circulation for field work is improved. It relates to a rapid construction structure for a core part using a precast wall with a multi-layer height that can be secured at an early stage and, accordingly, can be shortened more efficiently.

A space in which people live due to the concentration of population in cities following rapid economic development and the consequent increase in land prices. For example, in residential structures, the supply of multi-unit dwellings such as apartments is expanding, and the demand for them is rapidly increasing.

Multi-family housing can save construction site and construction cost by adopting a floor-by-floor spatial structure that allows multiple households to move into one building, and in particular, it is possible to intensively use a limited area of land, which is a problem of housing shortage. has the advantage of being able to solve efficiently.

On the other hand, in constructing a high-rise apartment building, one of the most important parts to be considered is the design of the core.

For example, a core refers to a certain space in which various functions are concentrated in order to facilitate the supply of various machines, electricity, and communication in a building, such as stairs, elevators, toilets, and plumbing shafts, in charge of vertical movement of users in a building. Because the use of the building is determined by the location of these cores, planning and designing the size and location of core facilities is a very important part in the construction of multi-story structures.

In the core construction of a multi-story common house, looking at the conventional construction method that is generally widely used, it can be seen that the situation is usually dependent on the RC (Reinforced Concrete) 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 "rebar processing - formwork installation - concrete pouring - curing - formwork disassembly". It refers to a construction method, for example, a reinforced concrete method.

However, while the above-mentioned reinforced concrete method has excellent durability and fire resistance and easy supply and demand of materials, construction cost increases due to excessive construction period due to curing process and form dismantling work, and also, housing renovation Or, it is not easy to work during demolition and generates a large amount of waste, and in particular, it is difficult to construct in winter.

Alternatively, as described above, the reinforced concrete method is difficult to expect a relatively rapid process as it takes a labor-dependent method, for example, a method that requires a lot of construction manpower, and as a result, it affects the subsequent process, thereby affecting the overall There is a problem of delaying the construction period and causing excessive labor costs.

Korean Patent Publication No. 10-2020-0098239 (published on August 20, 2020) Republic of Korea Patent Registration No. 0768081 (registered on October 11, 2007)

Therefore, the present invention was created to solve the overall problems of the conventional apartment house basement core construction structure;

An object of the present invention is to construct a basement floor core of an apartment house by a precast concrete (PC) method, for example, by molding a concrete structure into a reusable molding member (PC wall member) by casting, and forming a molded The molding member (PC wall member) is transported to the work site and the tilt-up method is used, but the PC wall member constructed by the precast method forms an uneven casting groove and horizontal reinforcing bars. In installing and connecting two or more PC wall members in which a casting groove and horizontal reinforcing bars are formed, the horizontal reinforcing bars formed by one PC wall member are inserted into the uneven casting groove formed by the other PC wall member in a tight closing manner, and the horizontal reinforcing bars are Vertical reinforcing bars are inserted and installed again as an additional configuration in the inserted and closed concave-convex casting groove, and then, non-shrinkage mortar is placed in the concave-convex casting groove into which the horizontal and vertical reinforcing bars are inserted. By fixing the above PC wall members to be bonded, the durability of the connection between PC wall members is increased, and in addition, by such a bonding method, quick and easy construction work can also be performed, so that a vertical movement line for field work is created. It is possible to secure it at an early stage, thereby shortening the construction period as well as reducing the number of working manpower. It is to provide a core part rapid construction structure.

In addition, an object of the present invention, in casting and molding a PC wall member, is to mold a concavo-convex casting groove formed by the PC wall member by a breakage prevention mold, and after molding is completed, the PC wall member is combined with the damage prevention mold. The wall members are transported to the work site, and the damage-resistant formwork is removed from the transported PC wall immediately before construction to perform joint installation work between the PC wall members. It is to provide a core part rapid construction structure using a precast wall of multi-layer height to prevent crack damage at the source.

Looking at the core part rapid construction structure using the multi-layer height precast wall according to the present invention to achieve 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 a concave-convex casting groove on one side and an auxiliary fastening groove and horizontal reinforcing bars on the other side;

Thereafter, the PC wall members are installed and connected in two or more configurations, and among the PC wall members connected in the two or more configurations, the horizontal reinforcing bar formed by one PC wall member is formed in the uneven casting groove formed by the other PC wall member. is inserted in a close closing manner, the horizontal reinforcing bars are inserted, and vertical reinforcing bars are further inserted and installed as an additional configuration in the closed concave-convex casting groove, and at the same time, non-shrinkage mortar is poured, and two or more It is achieved by fixing the PC wall.

As described above, the rapid construction structure of the core part using the precast wall of the multi-layer height according to the present invention forms the concave-convex casting groove and the horizontal reinforcing bar in the PC wall member, and then, the PC wall member in which the concave-convex casting groove and the horizontal reinforcing bar are formed In installing and connecting two or more configurations, the horizontal reinforcing bar formed by the PC wall member on one side is inserted into the concave-convex casting groove formed by the other PC wall member in a close closing manner, and the horizontal reinforcing bar is inserted and the vertical reinforcing bar is inserted into the concave-convex casting groove again closed. is installed as an additional configuration and at the same time non-shrinkage mortar is poured, so that two or more PC walls are fixedly joined by the poured non-shrinkage mortar, which increases the durability of the connection between PC wall members and At the same time, it is possible to perform quick and easy construction work so that the vertical circulation for field work can be secured early, and accordingly, not only shortening the period but also reducing the number of working manpower can be expected, thereby improving work efficiency, economic performance, and construction. It provides the effect of increasing safety and the like.

Alternatively, in the rapid construction structure of the core part using a precast wall with a multi-layer height according to the present invention, the uneven casting groove formed by the PC wall member is molded by a breakage prevention mold, and the damage prevention mold is combined with the PC After the wall member is transported to the work site and the damage prevention formwork is removed immediately before construction, PC wall members are connected to each other and installed. It is prevented, and it 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
Figure 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
Figure 4 is an enlarged cross-sectional view of the main part of the breakage prevention mold applied to the present invention
Figure 5 is an exploded perspective view of this embodiment of the PC wall member and the PC slab member applied to the present invention
Figure 6 is a cross-sectional view of this embodiment construction state of the PC wall member applied to the present invention

The detailed descriptions that follow are provided to facilitate a comprehensive understanding of the methods, apparatus and/or systems, and structures described herein. However, this is only 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 subject matter of the present invention, the detailed description will be omitted. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of a user or operator. Therefore, the definition should be made based on the contents throughout this specification. Terminology used in the detailed description is only for describing the embodiments of the present invention and should in no way be limiting.

Unless expressly used otherwise, singular forms of expression include plural forms. In this description, expressions such as “comprising” or “comprising of” are intended to indicate any characteristic, number, step, operation, element, part or combination thereof, one or more other than those described. It should not be construed to exclude the existence or possibility of any other feature, number, step, operation, element, part or combination thereof.

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

Referring to the accompanying drawings, looking at the schematic configuration of the core part rapid construction structure using the multi-layer height precast wall according to the present invention, it is a PC wall member (1) and a PC slab member cast and molded by the precast method It consists 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 constructing the basement core of the apartment house, which is in the form of a molded reinforcing bar (not shown) embedded. To take a plate-like structure cast and molded by concrete, in applying such a PC wall member 1 to the present invention, as shown in FIG. 1, the interval gradually toward the inner surface at one end A concave-convex casting groove 11 in a narrow trapezoidal shape is formed, an auxiliary coupling groove 12 having a predetermined depth is formed at the other end, and a plurality of rows are arranged at intervals on the inner surface of the auxiliary coupling groove 12, The protruding horizontal reinforcing bars 13 are formed in a buried structure, and again, as shown in FIG. , Anchor bolts 15 are formed on the lower surface of the installation part of the half-pen box 14 in a configuration spaced apart from each other by a predetermined distance, and an assembly angle 16 fastened to the anchor bolt 15 in a detachable structure is provided and formed. this is preferable

At this time, in the PC wall member 1 described above, the concave-convex groove 11 has concavo-convex protrusions as shown in a partially enlarged view of FIG. For example, a shear reinforcement concavo-convex key 111 is further formed, and in addition, according to the shape characteristics, it has a feature of being cast and molded by a separate breakage-prevention mold 300, which is used here. 300), as shown in FIG. 4, takes a block body configuration of a predetermined length with a trapezoidal cross section, and a plurality of formwork fixing bolts 301 are arranged at regular and repeated intervals in the center of the inner surface. It is installed and formed, and the release prevention piece 302 fastened to the formwork fixing bolt 301 in a detachable and attachable structure is further coupled and formed.

As another explanation, in the above-described PC wall member 1, the half-pen box 14 is a reasonable installation connection of reinforcing bars, for example, ordinary concrete reinforcing bars used to connect structures by spreading reinforcing bars bent at right angles It means a steel plate box for jointing, and the halfpen box 14 applied to the present invention also uses such a conventional steel plate box for jointing concrete reinforcing bars as it is, and the detailed configuration and function description 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 constructing the basement core of the apartment house, and such a PC slab member 2 is shown in FIG. Alternatively, as shown in FIG. 3, it is preferable to form a plate-shaped structure cast and molded by concrete in the form of embedding shaping reinforcement (not shown).

Therefore, as described above, the components used in the rapid construction structure of the core part utilizing the precast wall of the multi-layer height according to the present invention composed of the configuration. 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 the apartment house using the PC wall member 1 and the PC slab member 2 are as follows.

First, in a state in which 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 above two or more configurations As shown in FIG. 2, the horizontal reinforcing bar 13 formed of ) is inserted into the uneven casting groove 11 formed of the other PC wall member 1 in a tight closing manner.

Subsequently, as shown in FIG. 1 or 2, the vertical reinforcement (S) provided as a separate additional reinforcing means in the concave-convex casting groove (11) into which the horizontal reinforcement (13) is inserted and closed is installed in an upright insertion structure. In this way, the non-shrinkage mortar 100, for example, the mortar that does not shrink during the hardening process, is poured into the uneven casting groove 11 into which the horizontal reinforcement 13 and the vertical reinforcement S are inserted. Two or more PC wall members 1 are joined in a fixed structure by the hardening action of the poured non-shrinkage mortar 100 to form the wall structure of the basement core of the apartment house in the area range to be built.

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

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

Again, in the finishing process, after confirming that the PC wall member 1 and the PC slab member 2 are firmly fixed and joined to each other by the topping concrete 400, the anchor bolt supporting the PC slab member 2 ( 15) and the assembling angle 16 are separated and removed, thereby realizing a rapid construction structure for the core part utilizing a precast wall having a multi-layer height 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 according to its shape characteristics, and in the handling process such as transportation, damage and Since there is a risk of damage, therefore, the PC wall member 1 is placed in the state where the anti-damage form 300 used to form the uneven casting groove 11 is coupled to the uneven casting groove 11 at the work site. PC wall member 1 ) are installed and connected in two or more configurations.

On the other hand, Figure 5 is an exploded perspective view of the PC wall member and the PC slab member applied to this embodiment of the present invention, Figure 6 shows a cross-sectional view of the construction state of the PC wall member applied to this embodiment of the present invention.

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

Accordingly, in the present invention as this embodiment, in the configuration of the above-described embodiment, as shown in FIGS. 5 and 6, the configuration of the concavo-convex casting groove 11 formed of the PC wall member 1 is open on one side It is preferable to convert and form the open pouring groove 17.

Therefore, in installing and connecting the PC wall member 1 as 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 reinforcement 13 formed of any one PC wall member 1 is inserted into the open casting groove 17 formed of the other PC wall member 1.

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

Again, the non-shrinkage mortar 100 is poured into the open casting groove 17 finished in a closed structure by the formwork 200, and two or more PC wall members ( 1), by separating and removing the formwork 200 after fixing and bonding, the rapid construction structure of the core part utilizing the precast wall of multi-layer height as this implementation according to the present invention is implemented.

1: PC wall member 2: PC slab member
11: uneven 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-shrinkage mortar
151: formwork 300: breakage prevention formwork
400: topping concrete S: vertical reinforcing bar

Claims (5)

delete Including a PC wall member (1) and a PC slab member (2) cast and molded by a precast method;
The PC wall member 1, gradually narrows toward the inner surface at one end and forms a trapezoidal shaped concave-convex groove 11 having a shear reinforcement concave-convex key 111 integrally formed on the narrowed inner surface, , forming an auxiliary coupling groove 12 at the other end and a plurality of horizontal reinforcing bars 13 protruding in a row-spaced arrangement on the inner surface of the auxiliary coupling groove 12;
The formed PC wall members (1) are installed and connected in two or more configurations, and horizontal reinforcing bars (13) formed of any one PC wall member (1) among the PC wall members (1) connected in the two or more configurations is inserted into the concave-convex casting groove 11 formed of another PC wall member 1 in a tight closing manner, and the horizontal reinforcing bar 13 is inserted and the vertical reinforcing bar S is inserted into the concave-convex casting groove 11 that is closed. It is additionally installed with an upright insertion structure, and the horizontal reinforcement 13 and the vertical reinforcement (S) are inserted and the non-shrinkage mortar 100 is poured into the closed uneven casting groove 11, and the non-shrinkage mortar 100 is poured. ) By fixing two or more PC wall members (1),
The PC slab member 2 includes one formed in a plate-like structure in which shaping 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 deformable reinforcing bars 141 are accommodated on the inner upper surface, and anchor bolts 15 on the lower surface of the installation site of the half pen box 14. , Forming the assembly angle 16 is further coupled to be fastened with the anchor bolt 15;
A structure is constructed by combining and installing the formed PC wall member (1) and PC slab member (2), and the installation structure is PC slab member on the upper surface of the PC wall member (1) using the assembling angle (16) as a supporting means Mounting (2);
Under the state in which the PC slab member 2 is mounted, the deformable reinforcing bars 141 of the half-pen box 14 are spread on the upper surface of the PC slab member 2 in a horizontal structure;
Topping concrete 400 is cast on the upper surface of the PC slab member 2 on which the variable reinforcing bars 141 are spread, and the PC slab member 2 on the upper surface of the PC wall member 1 by the topping concrete 400 A rapid construction structure for the core part using a precast wall with a multi-layer height, characterized in that it is fixedly joined.
According to claim 2;
The uneven pouring groove 11 of the PC wall member 1 is formed as an open pouring groove 17 with one side open;
The PC wall member (1) forming the open casting groove (17) is installed and connected in two or more configurations, but any one of the PC wall members (1) connected in the two or more configurations (1) ) Inserting and receiving the horizontal reinforcement 13 formed of the other PC wall member 1 into the open casting groove 17 formed of the PC wall member 1;
Vertical reinforcement (S) is installed 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 reinforcement 13 and the vertical reinforcement S are inserted into a closed structure by the formwork 200 having a form tie fastening method;
By pouring the non-shrinkage mortar 100 into the open pouring groove 17 finished in a closed structure by the formwork 200, two or more PC wall members 1 are formed by the poured non-shrinkable mortar 100 A core part rapid construction structure using a precast wall with a multi-layer height, characterized in that it is fixedly joined.
According to claim 2;
The concave-convex 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 structure having a trapezoidal cross section. And, on the inner surface, the formwork fixing bolt 301 and the formwork fixing bolt 301 are fastened to form a breakaway prevention piece 302 that prevents the breakage of the formwork 300;
The PC wall member (1) is transported to the work site with the damage-resistant mold 300 coupled, and immediately before structure construction, after the damage-resistant mold 300 is removed, the PC wall member (1) is placed in two or more A rapid construction structure for the core part using a precast wall with a multi-layer height, characterized by installation and connection in a configuration.
According to claim 2;
The anchor bolt 15 and the assembly angle 16 are separated and removed after the PC slab member 2 is fixed to the upper surface of the PC wall member 1 by the topping concrete 400 in a joint structure. Rapid construction structure of the core part utilizing multi-height precast walls.

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