KR102111337B1 - Building Core System using Precast Concrete Panel with Column in the Center - Google Patents

Abstract

The present invention simplifies the bonding process by allowing the core system to be formed by using a panel in which walls are integrally formed on both sides of a column, while reducing the occurrence of a tensile region on the column section even when subjected to axial forces and bending moments due to the load, resulting in large lateral forces. Even if it works, it relates to a precast concrete panel with a pillar in the center and a building core system using the same, so that only the compressive force is applied to the section of the pillar to increase structural safety.
One preferred embodiment of a building core system using a precast concrete panel with a pillar in the center of the present invention is a wall integrally formed on both sides of a pillar and a pillar, and an outer end of the wall protrudes outwardly toward the bottom of the central portion in the height direction. The precast concrete panel on which the engaging jaw is formed is positioned adjacent to the precast concrete panel so that the engaging jaw is positioned up and down, and the adjacent precast concrete panels are joined so that the engaging jaws are engaged to form a unit member, and the unit member It is formed by laminating vertically.

Description

Building Core System using Precast Concrete Panel with Column in the Center}

The present invention relates to a precast concrete panel with a pillar in the center and a building core system using the same, and more specifically, by forming a core system using a panel in which walls are integrally formed on both sides of a pillar, simplifying the bonding process and loading. Precast concrete panels with pillars in the center and the same are used to increase the structural safety by applying only compressive force to the pillar sections even if the lateral force acts largely by reducing the occurrence of tensile region on the pillar sections even when subjected to axial forces and bending moments It is related to the building core system.

In general, the core of a building is a structural element that promotes horizontal stability of a building by forming a single or multiple cores into a concrete shear wall structure by concentrating a vertical transportation system and an energy supply system, and resists lateral forces along with the surrounding frame. The member that transmits the lateral force to the core acts as a floor slab of the building, acting as a single structure for the core and surrounding frames, such as large concrete pipes.

In the case of such a high-rise building, the core is pre-constructed in a wall-type structure, and the post-construction of the surrounding ramen structure is used to find the horizontal stability of the building using the difference in rigidity between the wall-type structure and the ramen structure. For the RC core leading method, a formwork with a system of installation, fixation, and dismantling is required, and a joint treatment method capable of continuous reinforcing bars in the core must be devised. In addition, there are interference of stud bolts and reinforcing bars at the corners, air delays due to on-site assembly of the lowered rebars, and inevitable shape deformation when lifting pre-assembled rebars.

In the UK, where there is little impact from earthquakes, the number of cases in which staircases and elevator shafts, which are vertical passages for high-rise buildings, are manufactured with a PC as shown below is increasing. However, since the staircase and the elevator shaft are not used as lateral force resistance elements, the connection between the PC units is relatively simple so as to have the resistance to the member force due to the vertical load.

On the other hand, the elevator shaft is constructed by stacking one PC unit for each floor, or alternately stacking the doorway unit and the linguistic unit, if the space constraints of the site and the capacity limitation of the lifting equipment are less.

On the other hand, the staircase does not form a box-shaped shaft due to the weight of the weight, and a method of connecting stairs and landings in a space constructed with panels has been applied. . However, in the case of a staircase, it is difficult to manufacture one floor as one unit because the weight is considerably large because the space is larger than the elevator shaft, and joining is also a limiting factor because stairs and landings are additionally installed.

In particular, existing PC cores (stairs and elevator shafts) are limited in horizontal bonding between PC units (joint details / inverse proportions of construction and construction), and when constructing spaces using PC panels, lateral force resistance performance is impossible due to the impossibility of horizontal rebar joints. Because of the problems such as individual behavior of the PC unit due to a significant drop in and lack of confidence in the joint strength, it was not utilized as a lateral force resistance element.

As a background technology of the present invention, there is a patent publication No. 2012-0003172 "A method for constructing a module core in a module stacking method" (Patent Document 1). In the background art, 'the construction site is manufactured by manufacturing a core structure 10 comprising a lift room 11 with upper and lower openings and a stair room 12 with sloping plates 13a and landings 13b in a standardized modular form. In the stacking construction is performed, the construction method of the core structure of the module stacking method is characterized in that the fastening beams 14 of the core structures 10 are mutually assembled by fastening members.

However, the above-described background technology has problems such as individual behavior of the PC unit due to a significant decrease in lateral force resistance performance and lack of trust in joint strength, and thus, there is a problem in that it is not used as a lateral force resistance element, but also difficult to lift and construct.

Patent Publication No. 2012-0003172 "Module stacking method building core part construction method"

The present invention is to solve the above problems, and by forming a core system using a panel in which walls are integrally formed on both sides of a column, even if it receives an axial force and a bending moment due to a load, the generation of a tensile region in the column section is generated. Even if the lateral force acts largely by lowering, it is possible to increase the structural safety by applying only the compressive force to the column section, shortening the RC method during the core construction period, and making it possible to connect horizontal reinforcing bars when constructing a space using walls, and to improve lateral force resistance through horizontal reinforcing joints. The aim is to provide a precast concrete panel with pillars in the center and a building core system using the same to secure a worker's vertical passage and secure worker safety through securing and early construction of the core.

In the present invention, a wall is integrally formed on both sides of a pillar and a pillar, and an outer end portion of the wall has a pillar in the center, characterized in that a lower portion of the central portion of the height direction protrudes outward to form an engaging jaw. Want to provide.

In addition, it is intended to provide a precast concrete panel with a pillar in the center, characterized in that through holes are formed through the height of the coupling jaw.

In addition, a pillar and a wall having a thickness thinner than the pillar on both sides along the center line of the pillar but having the same height as the pillar are integrally formed, and the lower end of the wall is protruding outward from the center portion in the height direction. Box-shaped unit by prepositioning a precast concrete panel with a pillar in the center, which is characterized in that an additional part is formed, so that the precast concrete panels are positioned adjacent to each other so that the coupling jaws are engaged between adjacent precast concrete panels. It is intended to provide a building core system using a precast concrete panel with pillars in the center, which is formed by forming members and vertically stacking box-shaped unit members.

In addition, a through hole is formed through the engaging jaw in the height direction, and when joining between the precast concrete panels, the through holes of the coupling jaw of the precast concrete panel are matched, and vertical rebars are inserted into the through hole, and into the through hole. An object of the present invention is to provide a building core system using a precast concrete panel with pillars in the center, which is characterized by forming a unit member by pouring non-contraction mortar.

In addition, the splice sleeve and the large diameter rebar vertically formed at the upper end of the splice sleeve are joined, so that the lower end of the splice sleeve is exposed from the lower end of the pillar in the unit member in the height direction of the precast concrete box pillar, and the large diameter rebar is A plurality of pieces are formed to protrude a certain length to the upper end of the column, and when the unit member is stacked, a large diameter rebar protruding from the column of the lower unit member is inserted into the splice sleeve and a non-shrinking mortar is spliced inside the splice sleeve. It is intended to provide a building core system using a precast concrete panel with a pillar in the center, characterized by filling and joining.

The precast concrete panel with a pillar in the center of the present invention and the building core system using the same are formed by forming a core system using a panel in which walls are integrally formed on both sides of a pillar, thereby simplifying the bonding process while axial force and bending moment due to load Even if it receives, it can increase the structural safety by applying only compressive force to the column section, even if the lateral force acts largely by reducing the occurrence of tensile area on the column section, shortening compared to the RC method during the core construction period, horizontal rebar joint when constructing a space using walls Possible, there is a very useful effect to secure the lateral force resistance performance through the horizontal rebar joint and secure the worker's vertical passage through the early construction of the core and secure the worker's safety.

The following drawings attached in this specification are intended to illustrate preferred embodiments of the present invention, and serve to further understand the technical idea of the present invention together with the detailed description of the present invention, so the present invention is only described in the accompanying drawings. It should not be interpreted as limited.
1 is a view comparing a conventional building core system with the building core system of the present invention.
2 is a perspective view of a precast concrete panel of the present invention.
3 is an exploded perspective view of the unit member of the present invention and a perspective view of a coupled state.
4 is a perspective view of a building core system using a precast concrete panel with pillars in the center of the present invention.
5 is a cross-sectional view taken along line AA of FIG. 4 and a perspective view of the splice sleeve.
Figure 6 is a view comparing the structural behavior of the precast concrete panel with a column in the center of the present invention when the panel is attached to both sides of the existing column.

The present invention will be described in detail below with reference to the embodiments presented in the accompanying drawings, but the presented embodiments are illustrative for a clear understanding of the present invention and the invention is not limited thereto.

Hereinafter, the technical configuration of the present invention will be described in detail according to a preferred embodiment with reference to the drawings.

1 is a view comparing a conventional building core system with the building core system of the present invention.

As shown in FIG. 1 (a), in general, a method in which a building core system is constructed has a pillar 6 resisting a main load in the center, and separate PC walls 7 are joined to both sides of the pillar in 12 places. Vertical joining is required, and the lateral force resistance system is simplified, but there are limitations in application according to the column placement module and the increase in PC volume compared to the wall type.

In the present invention, as shown in Figure 1 (b), by forming a core system using a precast concrete panel 10 on which both walls 12 are integrally formed on both sides of the pillar 11, vertical joining is performed at only six locations. By simplifying the joining process by making it happen, even if the axial force and bending moment due to the load are applied, the generation of the tensile region is lowered on the end face of the pillar, so that even if the lateral force acts largely, only the compressive force is applied to the end face of the pillar, thereby increasing structural safety.

Figure 2 is a perspective view of a precast concrete panel of the present invention, Figure 3 is an exploded perspective view of the unit member of the present invention and a perspective view of a coupled state.

2, the precast concrete panel 10 in the present invention has a thinner thickness than the pillar 11 on both sides along the center line of the pillar 11 and the pillar 11, as shown in FIG. The column 11 and the wall 12 such that the wall 12 having the same height as 11) is integrally formed, so that the column 11 is located at the center and the wall 12 is located on both sides of the column 11. It is made of an integral type, the unit member 1 is made by joining a plurality of precast concrete panels 10, as shown in FIG.

In the precast concrete panel 10 in the present invention, in particular, the outer end of the wall 12 protrudes outward at the lower portion of the center in the height direction so that the engaging jaw portion 121 is formed, thereby forming the unit member 1. At this time, as shown in Figure 2, the adjacent precast concrete panel 10, so that the engaging jaw portion 121 are alternately arranged, the precast panel 10 is arranged by changing the top and bottom, adjacent precast concrete panel 10 ) It is to form the unit member 1 having a space of a predetermined size by joining the engaging jaw portion 121 to engage.

At this time, the precast concrete panel 10 and the precast concrete panel 10 in the unit member 1 can increase the lateral force resistance even in the corner part due to the chin engagement between the engaging jaw parts 121.

As shown in the embodiment of FIG. 2, the unit member 1 has six positions between the wall 12 of the precast concrete panel 10 and the wall 12 of the adjacent precast concrete panel 10 in both long and short sides. In this case, it is possible to simplify the bonding because it is made of vertical bonding.

Bonding of the precast concrete panel 10 and the precast concrete panel 10 can be performed in a variety of well-known methods. In particular, a joint jaw (for bonding the precast concrete panel 10 and the precast concrete panel 10) 121) to pass through in the height direction so that the through hole 122 is formed, coincides with the through hole 122 of the engaging jaw portion 121 of the precast concrete panel 10 when joining between the precast concrete panels 10 By inserting the vertical rebar 20 into the through-hole 122 in the field, and pouring the non-shrinking mortar 21 into the through-hole 122 to join to form the unit member 1, simplifying the bonding process To reduce the on-site work so that the air can be significantly shortened.

In addition, as shown in FIG. 3, when the precast concrete panel 10 is manufactured, a separate opening 10c is formed so that the opening 10c is formed at a required position of the unit member 1, 10 ).

4 is a perspective view of a building core system using a precast concrete panel with pillars in the center of the present invention.

As shown in FIG. 4, the building core system using the precast concrete panel of the present invention is vertically stacked with the unit member 1 to form a building core system using the precast concrete panel.

In this way, the unit member 1 is vertically stacked to form a core system, and the bonding between the unit members 1 can be performed through a variety of known methods, in particular, the upper part using a sprite sleeve 31. And the lower unit member 1 may be joined.

Splice sleeve 31 can be used to use a variety of known splice sleeves, and can be used to use a structural steel pipe, etc., the top and bottom of the splice sleeve 31, respectively, the outlet 312 and the inlet 311 It may be formed to be buried so that the end is exposed to the outside of the pillar (11). A large-diameter reinforcing bar 32 of a predetermined length is welded to the upper end of the splice sleeve 31 as described above.

The splice sleeve 31 to which the large-diameter reinforcing bar 32 is joined is a column at the lower end of the splice sleeve 31 in the unit direction of the precast concrete box 10 column 11 in the height direction. 11) is exposed from the lower end of the large-diameter reinforcing bar 32 so as to protrude a certain length to the upper end of the column 11 is configured to be embedded, when stacking the unit member 1, the column 11 of the lower unit member 1 ) The large diameter reinforcing bar 32 protruding from) can be inserted into the splice sleeve 31 and the non-shrinking mortar 33 is filled into the splice sleeve 31 to join the splice sleeve 31.

Since the splice sleeve 31 is located on the lower surface of the unit member 1, and the precast concrete box 10 is disposed adjacent to the side so that the upper and lower parts are staggered, the engaging jaw portion 121 is disposed at the lower side. In the precast concrete box 10 in which the precast concrete box 10 and the engaging jaw portion 121 are arranged to be positioned at the top, the splice sleeve 31 should be configured to be located at the bottom.

Figure 6 is a view comparing the structural behavior of the precast concrete panel with a column in the center of the present invention when the panel is attached to both sides of the existing column.

In the case where a column that resists the main load is placed in the center in a general construction method and a separate PC wall is added to both sides of the column, the size of the bending moment when the column receives the axial force and the bending moment due to the load, as shown in FIG. As a result, a tension region may be generated in the section of the column, and thus there is a high possibility that the vertical rebar, which is the main bar of the column, may be drawn.

However, as in the present invention, the precast concrete panel 10 with a pillar in the center is integrally formed with the walls 12 on both sides of the pillar 11, so that the precast concrete panel 10 has an axial force due to the load. Even if subjected to the bending moment, the possibility of the occurrence of a tension region on the end face of the column 11 is very small. Therefore, even if the lateral force acts largely, only the compressive force is applied to the end face of the pillar 11, thereby improving structural safety.

The precast concrete panel with a pillar in the center of the present invention as described above and the building core system using the same are configured to form a core system using a panel in which walls are integrally formed on both sides of a pillar, even if it receives axial force and bending moment by load. Structural safety can be increased by applying only a compressive force to the column section, even if the lateral force acts largely by lowering the occurrence of tensile region on the column section, shortening compared to the RC method during the core construction period, and horizontal rebar joints when constructing a space using walls, It has a very useful effect to secure the lateral force resistance performance through the horizontal rebar joint and secure the worker's vertical passage through the early construction of the core and secure the worker's safety.

The present invention has been described in detail with reference to the presented embodiments so far, but those skilled in the art can make various modifications and modified inventions without departing from the technical spirit of the present invention with reference to the presented embodiments. will be. The present invention is not limited by such modified and modified inventions, but is limited by the appended claims.

1: Unit member
10: precast concrete panel
11: pillar
12: wall
121: coupling jaw
122: through hole
20: vertical rebar
21: unconstricted mortar
31: splice sleeve
32: large diameter rebar
33: unconstricted mortar

Claims (5)

delete delete The pillar 11 and the wall 12 having a thickness thinner than the pillar 11 on both sides along the center line of the pillar 11 but having the same height as the pillar 11 are integrally formed, and the wall 12 The outer end of the precast concrete panel with a pillar in the center, characterized in that the lower portion of the center portion in the height direction protrudes to the outside, the engaging jaw portion 121 is formed,
The precast concrete panel 10 is positioned adjacently so that the engaging jaw portion 121 is positioned at the upper and lower parts, and the adjacent precast concrete panels 10 are joined so that the engaging jaw portions 121 are engaged to form a box-shaped unit member 1. and,
Building core system using precast concrete panels with pillars in the center, characterized by forming the box-type unit members (1) vertically. The method according to claim 3,
A through hole 122 is formed through the engaging jaw portion 121 in the height direction,
When joining between the precast concrete panels 10, the through holes 122 of the engaging jaw portions 121 of the precast concrete panels 10 are matched,
The vertical rebar 20 is inserted into the through-hole 122, and a non-shrinking mortar 21 is poured into the through-hole 122 to be joined to form a unit member 1, thereby forming a unit member 1 free. Building core system using precast concrete panels. The method according to claim 3 or claim 4,
The splice sleeve 31 and the large-diameter reinforcing bar 32, which are vertically formed at the upper end of the splice sleeve 31, are joined, so that the splice sleeve 31 in the height direction of the pillar 11 of the precast concrete box 10 is connected. The lower end of the unit member (1) is exposed from the lower end of the column (11) and a large diameter reinforcing bar (32) is configured to be purchased so that a certain length protrudes to the upper end of the column (11),
When the unit member 1 is stacked, a large diameter reinforcing bar 32 protruding from the column 11 of the lower unit member 1 is inserted into the splice sleeve 31 and a non-shrinking mortar is formed inside the splice sleeve 31. Building core system using a precast concrete panel with a pillar in the center, characterized in that the splice sleeve (31) is filled and joined.

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