VARIABLE BUILDING PLANE STRUCTURE TO WHICH PC STRUCTURE AND DOUBLE FLOOR ARE APPLIED

Description

BACKGROUND

1. Field

The present invention relates to a variable building plane structure to which a precast concrete (PC) structure and a double floor are applied to improve the degree of freedom in space arrangement in a room, a bathroom, a kitchen, or the like inside a residential space.

2. Description of the Related Art

In an apartment complex, each independent building that shares a core, including elevators and stairs, is referred to as a building. Plane structures of buildings such as apartment buildings are gradually evolving into variable structures that may be changed to allow free arrangement according to tastes and preferences of various residents.

However, until now, when a location of a so-called pipe duct (PD) section including a riser pipe vertically crossing a residential space of a building is determined, spaces that require water supply and drainage, such as kitchens and bathrooms, should be arranged close to the PD section, and thus the degree of freedom in arranging spaces such as rooms, bathrooms, and kitchens inside the residential space is inevitably limited.

The background art of the present invention is disclosed in Japanese Patent Publication No. 4568001 (registered on Aug. 13, 2010, titled: Residential Structure of Collective Housing).

SUMMARY

The present invention is directed to providing a variable building plane structure to which a PC structure and a double floor are applied to shorten construction time and improve the degree of freedom of space arrangement inside a residential space.

A variable building plane structure to which a PC structure and a double floor are applied according to the present invention includes a plurality of PC pillars spaced apart from each other to form a matrix along an edge of a residential space, a plurality of PC perimeter beams arranged between a pair of PC pillars, arranged adjacent to each other in a same row, among the plurality of PC pillars, at least one PC slab disposed between a pair of PC perimeter beams, arranged in adjacent rows, among the plurality of PC perimeter beams, and a top slab placed on the at least one PC slab.

The variable building plane structure to which the PC structure and the double floor are applied according to the present invention may further include at least one PC cross beam disposed adjacent to the PC slab between the pair of PC pillars, arranged in a same column in adjacent rows, among the plurality of PC pillars and having a smaller width than the PC slab.

The variable building plane structure to which the PC structure and the double floor are applied according to the present invention may further include a riser pipe extending vertically for a liquid to flow and passing through the PC cross beam vertically.

The PC cross beam through which the riser pipe passes may be disposed at a distal end of the residential space.

The top slab may be placed on the at least one PC slab and the at least one PC cross beam, and the PC slab and the PC cross beam may be spaced apart from the top slab to form a floor space.

A faucet or a sewer may be formed inside the residential space, and the variable building plane structure may further include a floor pipe connecting the faucet or the sewer and the riser pipe to the floor space for a liquid to flow.

The PC cross beam may include a plate part having a flat upper surface and extending parallel to a longitudinal direction of the PC slab and a pair of rib parts protruding downward from both corners of the plate part in a width direction and extending parallel to a longitudinal direction of the plate part.

The variable building plane structure to which the PC structure and the double floor are applied according to the present invention may further include a poured concrete floor part that integrally couples the plurality of PC pillars, the plurality of PC perimeter beams, the at least one PC slab, and the at least one PC cross beam.

The PC cross beam may be provided as a plurality of PC cross beams, and the plurality of PC cross beams and the at least one PC slab may be alternately arranged.

The variable building plane structure to which the PC structure and the double floor are applied according to the present invention may further include a reinforced concrete (RC) core adjacent to the residential space, extending vertically, and made of reinforced concrete.

A matrix of the plurality of PC pillars may be a matrix having two rows, and the PC pillar may not be disposed inside the residential space.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other objects, features and advantages of the present disclosure will become more apparent to those of ordinary skill in the art by describing exemplary embodiments thereof in detail with reference to the accompanying drawings, in which:

FIG. 1 is a plan view of a variable building plane structure to which a PC structure and a double floor are applied according to an embodiment of the present invention;

FIG. 2 is a plan view illustrating a state in which a structure, a top slab, and an outer wall inside a residential space and a reinforced concrete (RC) core are removed from the variable building plane structure to which the PC structure and the double floor are applied according to the embodiment of the present invention;

FIG. 3 is a cross-sectional view along line III-III of FIG. 1 and is a view illustrating a state in which the structure inside the residential space is removed;

FIG. 4 is a perspective view illustrating a state in which a PC slab and a PC crossbeam of FIG. 3 are arranged adjacent to each other; and

FIG. 5 is an enlarged plan view of part V of FIG. 3 and is a view illustrating a state in which an external formwork and an internal formwork are installed before concrete on the outer wall is poured out.

DETAILED DESCRIPTION

Hereinafter, a variable building plane structure to which a PC structure and a double floor are applied according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. Terms used in the specification are used to properly express the embodiments of the present invention and the terms may change depending on the intention of a user or an operator or customs in the field to which the present invention belongs. Therefore, definitions of these terms should be made based on the content throughout the specification.

FIG. 1 is a plan view of a variable building plane structure to which a PC structure and a double floor are applied according to an embodiment of the present invention, FIG. 2 is a plan view illustrating a state in which a structure, a top slab, and an outer wall inside a residential space and an RC core are removed from the variable building plane structure to which the PC structure and the double floor are applied according to the embodiment of the present invention, FIG. 3 is a cross-sectional view along line III-III of FIG. 1 and is a view illustrating a state in which the structure inside the residential space is removed, FIG. 4 is a perspective view illustrating a state in which a PC slab and a PC crossbeam of FIG. 3 are arranged adjacent to each other, and FIG. 5 is an enlarged plan view of part V of FIG. 3 and is a view illustrating a state in which an external formwork and an internal formwork are installed before concrete on the outer wall is poured out.

Referring to FIGS. 1 to 5, a variable building plane structure 1 to which the PC structure and the double floor are applied (hereinafter referred to as a “building plane structure”) according to the embodiment of the present invention includes a plurality of PC pillars 31, a plurality of PC perimeter beams 62, at least one PC slab 80, and a top slab 88.

The building plane structure 1 includes a pair of residential spaces 30A and 30B adjacent to each other in a left-right direction. The pair of adjacent residential spaces 30A and 30B may be formed to be symmetrical to each other in the left-right direction. The building plane structure 1 may include an RC core 10 adjacent to the residential spaces 30A and 30B, extending in a vertical direction, and made of reinforcing concrete. The RC core 10 may increase stability and rigidity of the building.

The RC core 10 may include a reinforced wall 12 formed of reinforced concrete material. An inner space of the RC core 10 may be divided into a plurality of spaces 16, 17, and 18 by the reinforced wall 12. For example, the inner space of the RC core 10 may include a common corridor space 16 connected to front doors 38 of the pair of adjacent residential spaces 30A and 30B, a staircase space 17 in which stairs are installed, and an elevator space 18 in which elevators are installed.

The plurality of PC pillars 31 are pillars that are not manufactured by pouring concrete at a construction site but are pre-manufactured at a factory, and may be formed of reinforced concrete material. The PC pillar 31 may vertically extend by a length corresponding to a floor height of the residential spaces 30A and 30B in the building.

The plurality of PC pillars 31 may be arranged to be spaced apart from each other to form a matrix along edges of the residential spaces 30A and 30B. In the illustrated building plane structure 1, the plurality of PC pillars 31 may be arranged in two rows i and ii. The PC pillars 31 may not be arranged inside the residential spaces 30A and 30B.

The RC core 10 may further include an inner wall 14 and an RC pillar 13 that separate the inner space of the RC core 10 from the pair of residential spaces 30A and 30B. The inner wall 14 and the pair of RC pillars 13 may be made of reinforced concrete material like the reinforced wall 12. The PC pillars 31 may not be arranged in an area in which the inner wall 14 and the RC pillars 13 are arranged.

A plurality of PC perimeter beams 60 are arranged between a pair of PC pillars 31, which are arranged adjacent to each other in the same rows i and ii, among the plurality of PC pillars 31. Both ends of the PC perimeter beam 60 in a longitudinal direction may be supported by upper ends of the PC pillars 31 or may be coupled by a coupling means (not illustrated).

The building plane structure 1 may further include a short PC perimeter beam 62 having a shorter length than the PC perimeter beam 60. The short PC perimeter beam 62 may be disposed between the RC pillar 13 and the PC pillar 31 closest to the RC pillar 13. One end and the other end of the short PC perimeter beam 62 in a longitudinal direction may be supported by upper ends of the PC pillar 31 and the RC pillar or may be coupled by a coupling means.

The PC perimeter beam 60 and the short PC perimeter beam 62 are pillars that are not manufactured by pouring concrete at a construction site but are pre-manufactured at a factory, and may be formed of reinforced concrete material.

The at least one PC slab 80 is disposed between a pair of PC perimeter beams 60, which are arranged in adjacent rows i and ii, among the plurality of PC perimeter beams 60. The building plane structure 1 illustrated in FIGS. 1 and 2 according to the embodiment of the present invention may include a plurality of PC slabs 80, and some of the plurality of PC slabs 80 may be arranged between the short PC perimeter beam 62 and the PC perimeter beam 60. The top slab 88, which is a plate-shaped member, is placed on the at least one PC slab 80.

The building plane structure 1 may further include at least one PC cross beam 70. The at least one PC cross beam 70 may be disposed adjacent to the PC slab 80 between the pair of PC pillars 31, which are arranged in the same column in adjacent rows i and ii, among the plurality of PC pillars 31.

The PC cross beam 70 and the PC slab 80 may extend in a direction intersecting the longitudinal direction of the PC perimeter beam 60, for example, in a direction perpendicular thereto. A width of the PC cross beam 70 may be smaller than a width of the PC slab 80. For example, the width of the PC slab 80 may be the same as a length of the PC perimeter beam 60, and the width of the PC cross beam 70 may be the same as a width of the PC pillar 31.

The building plane structure 1 illustrated in FIGS. 1 and 2 according to the embodiment of the present invention may include the plurality of PC cross beams 70, and some of the plurality of PC cross beams 70 may be arranged between the inner wall 14 and the PC pillar 31. The plurality of PC cross beams 70 and the plurality of PC slabs 80 may be alternately arranged.

The PC cross beam 70 and the PC slab 80 are pillars that are not manufactured by pouring concrete at a construction site but are pre-manufactured at a factory, and may be formed of reinforced concrete material.

The PC cross beam 70 may include a plate part 71 and a pair of rib parts 74. The plate part 71 may have a flat upper surface 73 and may extend parallel to a longitudinal direction of the PC slab 80. The pair of rib parts 74 may protrude downward from both corners of the plate part 71 in a width direction and extend parallel to a longitudinal direction of the plate part 71. Rigidity of the PC cross beam 70 may be reinforced by the pair of rib parts 74.

Both ends 75 of the PC cross beam 70, disposed between the pair of PC pillars 31, in a longitudinal direction may be supported by the upper ends of the PC pillars 31 or coupled by a coupling means. In the case of the PC cross beam 70 disposed between the inner wall 14 and the PC pillar 31, one end 75 in the longitudinal direction may be supported by an upper end of the inner wall 14 or coupled by a coupling means, and the other end 75 may be supported by the upper end of the PC pillar 31 or coupled by a coupling means.

The PC slab 80 may include a plate part 81, a pair of outer rib parts 84, and a pair of inner rib parts 85. The plate part 81 may have a flat upper surface 83 and may extend in a direction intersecting the longitudinal direction of the PC perimeter beam 60. The pair of outer rib parts 84 may protrude downward from both corners of the plate part 81 in a width direction and extend parallel to a longitudinal direction of the plate part 81.

The pair of inner rib parts 85 may be arranged to be spaced apart from each other between the pair of outer rib parts 84, protrude downward, and extend parallel to the longitudinal direction of the plate part 81. Rigidity of the PC slab 80 may be reinforced by the pair of outer rib parts 84 and the pair of inner rib parts 85.

Both ends 86 of the PC slab 80, disposed between the pair of PC edge beams 60, in the longitudinal direction may be supported by upper ends of the PC edge beams 60 or coupled by a coupling means. In the case of the PC slab 80 disposed between the PC perimeter beam 60 and at least one of the short PC perimeter beam 62, the inner wall 14, and the RC pillar 13, one end 86 in the longitudinal direction may be supported by an upper end of at least one of the short PC perimeter beam 62, the inner wall 14, and the RC pillar 13 or coupled by a coupling means, and the other end 86 may be supported by the upper end of the PC perimeter beam 60 or coupled by a coupling means.

The building plane structure 1 may further include an outer wall 34 and a poured concrete floor part 90 formed by pouring concrete. The outer wall 34 connects the pair of adjacent PC pillars 31 and connects the PC pillar 31 and the RC pillar 13 adjacent to each other. Further, an outdoor air chamber space connected to the RC core 10 may be formed by the outer wall 34.

A process of forming the outer wall 34 will be described below. The process of forming the outer wall 34 may include an external formwork installation operation, an internal formwork installation operation, a concrete pouring operation, a curing operation, and a formwork removal operation.

Referring to FIG. 5, the external formwork installation operation is an operation of installing an external formwork 110 corresponding to an external shape of the building plane structure 1. The external formwork installation operation may include an external formwork lifting operation of lifting the external formwork used to form an outer wall of a lower floor in the building in order to use the external formwork to form an outer wall of an upper floor instead of removing the external formwork.

The internal formwork installation operation is an operation of installing the internal formwork 113 inside the external formwork 110 such that that internal formwork 113 is spaced apart from the external formwork 110. The concrete pouring operation is an operation of injecting and filling concrete into a pouring space 116 formed between the external formwork 110 and the internal formwork 113.

The curing operation is an operation of curing the concrete filled in the pouring space 116. The formwork removal operation is an operation of removing the external formwork 110 and the internal formwork 113. As described above, in the formwork removal operation, the external formwork may be lifted up to form an outer wall of a next upper floor instead of being removed.

An operation of installing the PC pillar 31, the PC perimeter beam 60, the PC cross beam 70, and the PC slab 80 may be performed between the external formwork installation operation and the internal formwork installation operation.

The poured concrete floor part 90 may integrally couple the plurality of PC pillars 31, the plurality of PC perimeter beams 60, the at least one PC cross beam 70, the at least one PC slab 80, the RC pillar 13, and the inner wall 14. The poured concrete floor part 90 may cover the upper surface 83 of the PC slab 80 and the upper surface 73 of the PC cross beam 70 and may be filled and hardened in a gap between the PC slab 80 and the PC cross beam 70. The poured concrete floor part 90 may reinforce junction parts of the PC pillar 31, the PC perimeter beam 60, the PC cross beam 70, and the PC slab 80, which are manufactured in advance at a factory and installed at a construction site, and reduce noise or vibration.

As illustrated in FIG. 3, for smooth drainage, a portion of the poured concrete floor part 90 that covers the upper surface 83 of the PC slab 80 and the upper surface 73 of the PC cross beam 70 may be formed to be inclined rather than horizontal. When the concrete pouring operation for forming the outer wall 34 is performed, the concrete may be poured together to form the poured concrete floor part.

The top slab 88 may be placed on the plurality of PC cross beams 70 and the plurality of PC slabs 80. In detail, the top slab 88 may be disposed to be spaced apart from the poured concrete floor part 90 by means of a plurality of pedestals 95. Accordingly, the plurality of PC cross beams 70 and the plurality of PC slabs 80 may be spaced apart from each other to form a bottom space 98.

The plurality of pedestals 95 are supported by the poured concrete floor part 90 and support the top slab 88. As described above, when the poured concrete floor part 90 is formed to be inclined, lengths of the plurality of pedestals 95 in a vertical direction may be adjusted differently so that the top slab 88 remains horizontal.

The building plane structure 1 may further include a riser pipe 100 and a floor pipe 104. The riser pipe 100 may extend vertically inside the building for a liquid to flow. For convenience, FIGS. 2 and 3 illustrate only one type of riser pipe 100, but this is exemplary. In detail, the riser pipe 100 may include a water supply pipe for supplying water used in the residential spaces 30A and 30B or a sewage pipe for draining sewage generated in the residential spaces 30A and 30B.

The riser pipe 100 may vertically pass through at least one PC cross beam 70 among the plurality of PC cross beams 70. The PC cross beam 70 through which the riser pipe 100 passes may be disposed at a distal end of each of the residential spaces 30A and 30B. A through-hole 72 through which the riser pipe 100 passes may be formed in the plate part 71 of the PC cross beam 70 through which the riser pipe 100 passes. As illustrated in FIG. 2, concrete poured to form the poured concrete floor part 90 may be filled and cured between the through-hole 72 and the riser pipe 100.

In FIG. 2, the riser pipe 100 is disposed to pass through the PC cross beam 70 at both left and right distal ends of the residential space 30A, but unlike the illustration of FIG. 2, the riser pipe 100 may be disposed to pass through only the PC cross beam 70 at one of the left and right distal ends.

Bathroom spaces 41 and 43 or a kitchen space 45 may be provided inside the residential spaces 30A and 30B. A faucet (not illustrated) for supplying water or a sewer (not illustrated) for draining sewage may be formed in the bathroom spaces 41 and 43 or the kitchen space 45. The floor pipe 104 may connect the faucet or the sewer to the riser pipe 100 so that a liquid may flow therethrough and may extend along the bottom space 98.

One end of the floor pipe 104 may be connected to the riser pipe 100, and the other end of the floor pipe 104 may be connected to the faucet or the sewer. Reference numeral 101 of FIG. 3 refers to a connector formed on a side wall of the riser pipe 100, which is connected to the one end of the floor pipe 104. As in FIGS. 2 and 3 in which only one type of the riser pipe 100 is illustrated, only one floor pipe 104 is illustrated for convenience, but this is exemplary.

In detail, one side and the other side of a water supply floor pipe for supplying water may be connected to the faucet and the water supply pipe. One side and the other side of a sewage floor pipe for draining sewage may be connected to the sewer and the sewage pipe.

The building plane structure 1 may further include an interior such as an inner wall 37 that divides spaces inside the residential spaces 30A and 30B, bathroom and toilet facilities, kitchen facilities, and lighting. The residential spaces 30A and 30B may be divided into a master bedroom space, a dressing room space, a living room space, a plurality of bedroom spaces, the plurality of bathroom spaces 41 and 43, a front door, and the like by the inner wall 37.

The inner wall 37 may not be a bearing wall that supports a load of the building but may be a non-bearing wall that does not support the load of the building. The inner wall 37 may be made of, for example, wood or a board, and may be easily removed.

An interior including the floor pipe 104, the top slab 88, and the inner wall 37 installed after the outer wall 34 and the poured concrete floor part 90 are formed by pouring concrete may be changed and installed relatively easily. Thus, in the variable building plane structure 1 to which the PC structure and the double floor are applied according to the embodiment of the present invention, arrangement of a space may be changed according to the preference of an occupant occupying the residential spaces 30A and 30B.

The double floor is a floor structure in which a floor space 98 is formed between the PC slab 80 and the PC cross beam 70 and the top slab 88 and thus the floor pipe 104 or wiring lines may be hidden. The double floor structure may enhance the comfort and aesthetics of the residential spaces 30A and 30B and allow space arrangement inside the residential spaces 30A and 30B to be freely changed.

According to the variable building plane structure 1 to which the PC structure and the double floor are applied, the PC pillar 31 may be disposed outside the residential spaces 30A and 30B, a fixing element such as the bearing wall may be removed from the insides of the residential spaces 30A and 30B, and the residential spaces 30A and 30B may be implemented as square spaces having rectangular planes. Thus, the residential spaces 30A and 30B may be widely used, and space efficiency may be increased.

Further, it is not necessary to install the bearing wall as the inner wall 37 that divides the spaces inside the residential spaces 30A and 30B. Thus, a free plane may be implemented as a variable space by freely combining locations and the number of the inner walls 37 that divide the insides of the residential spaces 30A and 30B.

Further, the floor space 98 may be formed between the PC cross beam 70 and the PC slab 80 and the top slab 88 to suppress inter-floor noise.

Further, a PD space, through which the riser pipe 100 passes, may be formed in the PC cross beam 70 at the distal ends of the residential spaces 30A and 30B, the floor pipe 104 passing through the floor space 98 may connect the faucet or the sewer inside the residential spaces 30A and 30B to the riser pipe 100, and thus the degree of freedom in arranging the bathroom space or the kitchen space in which water supply or drainage is required inside the residential spaces 30A and 30B is improved.

Further, a construction time of the multi-story building may be shortened by applying the PC pillar 31, the PC perimeter beams 60 and 62, the PC slab 80, and the PC cross beam 70 pre-manufactured at a factory rather than at the construction site.

Although the present invention has been described with reference to one embodiment illustrated in the drawings, the description is merely illustrative, and those skilled in the art to which the technology belongs could understand that various modifications and other equivalent embodiments may be made. Thus, the true technical scope of the present invention should be determined only by the appended claims.