KR101889190B1 - Floor sturcture - Google Patents

Abstract

The present invention relates to a hollow module body in which a plurality of hollow module bodies are spaced apart and embedded, the hollow module body introducing two or more hollow portions having different directions along the installation surface of the bottom structure; And a concrete member laid in a form surrounding the hollow module body, wherein the hollow module body includes: a central cavity formed in a central region; And a connection pipe portion connected to a metal pipe having a corrugated cross section so as to surround the central cavity portion and having two or more hollow portions communicating with each other along the installation surface of the bottom structure, The connecting tube portion includes a pair of first hollow members spaced apart at a predetermined interval by introducing a hollow portion in a first direction that is an X-axis direction along a mounting surface of the bottom structure; And a pair of second hollow members for introducing a hollow portion in a second direction along the installation surface of the bottom structure and connecting the ends of the pair of first hollow members to form a closed end face; The bottom structure is provided.

Description

{FLOOR STURCTURE}

The present invention relates to a floor structure with reduced weight.

It should be noted that the contents described in this section merely provide background information on the present invention and do not constitute the prior art.

Hollow slabs have been applied to civil structures as well as building structures such as bridge decks because they can reduce the weight of structures.

The hollow slab system is a bottom plate system that maintains the bending stiffness by increasing the thickness of the slab while reducing the weight of the slab by placing hollow in the slab.

This system is a structural system that enables efficient and economical building design by replacing the concrete of the slab web part which has less influence on the slab bending performance, by maintaining the strength and rigidity of the slab.

The type of hollow slab that is widely applied in the past is a one - way hollow slab system which reduces the amount and weight of concrete mainly by using circular or elliptical pipe as hollow body.

However, the unidirectional slab has a disadvantage in that it is difficult to design an economical building because there is a restriction on the architectural plan plan compared to the two - directional (square) slab system.

In order to reinforce the disadvantages of this unidirectional slab system, several unidirectional hollow systems have been developed and used, but most of the hollow materials used are made of plastic or expanded polystyrene (styrofoam) material, There is a problem that a hollow body is broken and a desired hollow ratio or hollow shape can not be obtained.

In addition, there is a problem that when a worker is walking on a hollow device, slip occurs and the risk of a safety accident of the worker increases.

Korean Patent Publication No. 10-1996-0029564

As one aspect, the present invention is to provide a floor structure capable of minimizing the strength drop by supporting the introduced two-directional hollow portions so as to be connected by the connection pipe portion.

As one aspect of the present invention, the corrugated steel pipe is introduced to reduce the weight of the hollow module body, thereby improving the workability in the field, and preventing slippage of the operator, thereby reducing the possibility of safety accidents.

As one aspect, the present invention has the effect of improving the fire resistance of the bottom structure and reducing the possibility of damaging the material for introduction of the hollow portion during the construction.

According to an aspect of the present invention, there is provided a floor structure including a plurality of hollow modules separated from each other, and a hollow module body for introducing two or more hollows having different directions along a mounting surface of the floor structure, ; And a concrete member laid in a form surrounding the hollow module body, wherein the hollow module body includes: a central cavity formed in a central region; And a connection pipe portion connected to a metal pipe having a corrugated cross section so as to surround the central cavity portion and having two or more hollow portions communicating with each other along the installation surface of the bottom structure, The connecting tube portion includes a pair of first hollow members spaced apart at a predetermined interval by introducing a hollow portion in a first direction that is an X-axis direction along a mounting surface of the bottom structure; And a pair of second hollow members for introducing a hollow portion in a second direction along the installation surface of the bottom structure and connecting the ends of the pair of first hollow members to form a closed end face; The bottom structure is provided.

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Preferably, the connecting tube portion is cut while forming the inclined surface of the metal tube at an angle of 45 degrees, and the inclined surface is welded to form a closed end surface of a square shape surrounding the central cavity portion.

Preferably, the connecting tube portion is formed in a rectangular shape having a length ratio of a short side and a long side in a range of 1: 1 to 1.2, and a length of a long side of the central cavity portion is formed in a range of 1 to 2 times the diameter of the metal tube .

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The supporting structure may further include a supporting hardware installed on one side of the outer circumferential surface of the connecting tube portion to support the connecting tube portion in a heightwise central region of the concrete member.

Preferably, the supporting hardware includes a mounting hardware inserted into the concave-convex portion formed on the connection tube portion and receiving the hollow module body; And an extension hardware extending downward from the mounting hardware and installed on the deck plate or the formwork.

The buoyancy prevention reinforcing bar may be provided on the connecting pipe portion to prevent the connection pipe portion from floating due to the pouring pressure of the concrete.

Preferably, the hollow module body includes: a first hollow module body forming the connecting tube portion in a rectangular shape; And a second hollow module body that forms the rectangular tube-shaped connection tube portion having a longer side of a longer side than the first hollow module body, wherein the first hollow module body and the second hollow module body are connected to the concrete member And at least a part of the second hollow module may be disposed at a position corresponding to a boundary portion where the hollow module forming the adjacent row is spaced apart.

According to an embodiment of the present invention as described above, the hollow portion is introduced in two or more directions to reduce the weight of the bottom structure, to prevent the hollow portion from being disposed in a single direction, So that the strength of the bottom structure can be minimized.

According to the embodiment of the present invention, the corrugated steel pipe is introduced to reduce the weight of the hollow module body, thereby improving the workability in the field, and preventing the slip of the worker, thereby reducing the possibility of safety accidents have.

1 is a view showing a state in which a hollow module is disposed in a bottom structure according to an embodiment of the present invention.
2 is a view showing a process of manufacturing a hollow module of a bottom structure according to the present invention.
FIG. 3 is a view showing a part of a cross-sectional view taken along line AA 'of FIG. 1 according to an embodiment of the present invention.
FIG. 4 is a view showing a part of a cross-sectional view taken along line AA 'of FIG. 1 according to another embodiment of the present invention.
5 is a view illustrating a state in which a hollow module is disposed in a floor structure according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, the embodiments of the present invention can be modified into various other forms, and the scope of the present invention is not limited to the embodiments described below. Further, the embodiments of the present invention are provided to more fully explain the present invention to those skilled in the art. The shape and size of elements in the drawings may be exaggerated for clarity.

Hereinafter, a bottom structure according to an embodiment of the present invention will be described in detail with reference to the drawings.

1 to 5, a floor structure according to an embodiment of the present invention includes a hollow module body 100 and a concrete member 200, and further includes a support metal piece 300, a buoyancy prevention reinforcing bar 400, .

The present invention relates to a hollow module body (100) for introducing two or more hollow portions (R) having different directions along a mounting surface of the bottom structure, wherein the hollow module bodies (100) , And a concrete member (200) placed in the form of surrounding the hollow module body (100).

A plurality of hollow module bodies 100 may be formed along the installation surface of the bottom structure.

The hollow module body 100 may be buried in a plurality of places along the installation surface of the floor structure in the field in advance beforehand.

The bottom structure of the present invention can introduce the hollow portion R in two or more directions along the bottom surface of the floor structure as the installation surface.

For example, as shown in Fig. 1, a hollow portion R may be introduced in the X-axis direction in the lateral direction along the bottom structure mounting surface and in the Y-axis direction in the forward and backward directions along the mounting surface of the bottom structure.

The bottom structure of the present invention has a structure in which a hollow portion R is introduced in at least two directions in a standardized constant region to prevent a reduction in load performance that may occur when introducing the hollow portion R in a single direction, (R) is introduced to reduce the weight of the bottom plate structure to reduce the amount of construction work, thereby reducing the construction cost.

As described above, the hollow module body 100 is modularized in a small size, and can be easily carried by an operator, and can be applied to various types of architectural planes to form a bottom structure.

The bottom structure of the present invention can be applied to a two-way slab in which the length of the long side of the bottom structure is not more than twice the length of the short side.

The floor structure of the present invention may be applied to a commercial building such as a parking lot, and a flat plate type that does not have a separate beam for supporting a floor structure may be applied to a lower side of the floor structure.

The hollow module body 100 may include a central cavity portion 110 and a connection tube portion 130.

The hollow module body 100 includes a central cavity 110 formed in a central region and a metal pipe having a corrugated cross-section so as to surround the central cavity 110, And a connection pipe portion 130 introducing two or more hollow portions R having different directions along the surface and communicating with the hollow portions R having different directions.

The central cavity portion 110 is a hollow space formed in a central region of the hollow module body 100, and a concrete member 200 may be installed in the central cavity portion 110.

The connecting tube portion 130 is disposed so as to surround the central cavity portion 110, and the hollow portion R can be introduced into the inside of the tube portion while forming a closed end while a metal tube of a corrugated section is connected.

The weight of the bottom structure is reduced by introducing the hollow portion R in at least two directions different from each other along the installation surface of the bottom structure and the introduced hollow portions R in two or more directions are connected to each other by the connection pipe portion 130 So that the strength of the bottom structure can be minimized.

At this time, the metal pipe may be formed as a corrugated steel pipe P having a corrugated cross section, and the corrugated steel pipe P may be connected to surround the central cavity 110 to form the connection pipe portion 130.

Since the metal tube is formed in the shape of a corrugated section, the structural stiffness is increased, thereby reducing the weight of the hollow module body 100 and improving the workability in the field. By preventing the slip of the worker by the cross- Can be prevented.

Unlike a conventional hollow body such as styrofoam, the present invention is characterized in that the connection pipe portion 130 for introducing the hollow portion R is made of a non-combustible metal pipe, the refractory of the bottom structure is improved and the hollow portion R It is possible to reduce the possibility of damaging the material for introduction of the material.

The closed end surface is a concept that includes forming a closed end surface including a fine gap generated at a joint portion of a metal pipe when the cut metal pipe is connected by a welding method.

As shown in FIGS. 1 and 2, the connection tube 130 is cut while a metal tube having a corrugated cross section in the longitudinal direction forms an inclined surface Q of 45 degrees, and the inclined surface Q May be welded together to form a closed end face of a square shape surrounding the central cavity portion 110.

A process of fabricating the hollow module body 100 of the present invention will be briefly described below.

As shown in FIG. 2A, a metal pipe having a cross section of a waveform while being provided with concavities and convexities continuously in the longitudinal direction is prepared.

As shown in FIG. 2B, the metal tube can be cut at an angle of 45 degrees.

As shown in FIG. 2C, four hollow members having downwardly inclined faces Q formed at both ends thereof are prepared.

As shown in FIG. 2 (d), four hollow members are welded successively to form a central hollow portion 110 in a central region, and a rectangular connection pipe portion 130 is formed to connect the hollow module 100 .

At this time, in the welding of the hollow member, the welded portion W can be joined to the both ends of the inclined surface Q by spot welding, or the welded portion W can be continuously formed along the inclined surface Q.

In this manner, the metal tube is cut at an angle of 45 degrees while forming the inclined plane Q, so that the rectangular shaped hollow module 100 can be formed while minimizing the waste of the metal tube.

Preferably, the length ratio between the long side and the short side of the hollow module body 100 is in the range of 1: 1 to 1.2.

As described above, the hollow module body 100 is modularized in a small size having a length ratio of a long side and a short side of 1: 1 to 1.2, and can be easily carried by an operator and applied to various types of building planes, There is an effect that a structure can be formed.

At this time, it is preferable that the length of the long side of the hollow module body 100 is limited to within 2 m that can be carried by two operators.

More preferably, the length of the long side of the hollow module body 100 is preferably in the range of 1.2 to 2 m.

It is preferable that the length of the long side of the central cavity portion 110 is formed to be in a range of 1 to 2 times the diameter of the metal tube forming the connection tube portion 130 for efficient introduction of the hollow portion R. [

More preferably, for efficient introduction of the hollow portion R, the central cavity portion 110 may be formed in a square shape and the connecting tube portion 130 may be provided in an annular member forming a closed end face of a square shape.

At this time, it is preferable that the length of one side of the central cavity portion 110 is formed within a range of 1 to 1.5 times the diameter of the metal tube forming the connection tube portion 130.

2, the connection pipe portion 130 includes a hollow portion R introduced in a first direction D1 along the installation surface of the bottom structure, and a pair of spaced- 1 hollow member 131 and a hollow portion R in a second direction D2 along the installation surface of the bottom structure and connecting end portions of the pair of first hollow members 131, And a pair of second hollow members 133 that form the first hollow member 133.

The first hollow member 131 and the second hollow member 133 may have downwardly inclined faces Q formed at both ends thereof.

The first hollow member 131 and the second hollow member 133 may be formed with a downward sloping surface Q which forms a downward inclination in the end direction.

The lower end of the first downward inclined face Q of the first hollow member 131 is welded to the lower end of the second downward beveled face Q of the second hollow member 133, The upper end of the first downward sloping surface Q and the upper end of the second downward sloping surface Q are welded to each other and the second hollow member 133 is welded to the upper end of the rectangular connection pipe portion 130 ) Can be formed.

The first direction D1 and the second direction D2 may be perpendicular to each other.

For example, the first hollow member 131 introduces the hollow portion R in a first direction D1 in the X-axis direction along the bottom structure mounting surface, and the second hollow member 133 introduces the hollow portion R into the mounting surface The hollow portion R can be introduced in the second direction D2 along the Y-axis direction.

4 and 5, the floor structure of the present invention is installed at one side of the outer circumferential surface of the connection pipe portion 130, and the connection pipe portion 130 is provided at a central region in the height direction of the concrete member 200 And may further include a support metal piece 300 for supporting it to stand on its own.

The supporting hardware 300 is a member for supporting the deck plate S or the mold S so as to be spaced apart from the deck plate S for placing the concrete member 200. When the hollow module 100 is supported by the supporting hardware 300, It can stand on the upper side of the deck plate S or the form S.

A plurality of supporting metal pieces 300 are welded to one side of the connecting tube portion 130 of the hollow module 100 and a plurality of the supporting metal pieces 300 are installed in the circumferential direction of the connecting tube portion 130 to connect the connecting tube portion 130 to the deck plate S or It can be supported apart from the form S to be supported.

When the deck plate S is installed at the lower portion, the lower end of the supporting hardware 300 may be fixed while being welded to the deck plate S, or may be mounted above the deck plate S.

When the dies S are disposed at the lower part, the dies S must be removed after the concrete members 200 are cured, so that the lower end of the supporting hardware 300 can be mounted on the upper side of the installed dies S .

3, a bar-shaped frame bar 310 may be welded to one side of the coupling tube 130 of the hollow module body 100. As shown in FIG.

The hollow module body 100 may be disposed in a heightwise central region of the concrete member 200, which forms the floor structure through the support hardware 300.

Accordingly, it is possible to omit the concrete member 200 in the height direction central region where the support performance with respect to the load applied by the moment is small, and the weight of the bottom structure can be reduced while minimizing the decrease in the load performance.

4, the supporting hardware 300 includes a mounting hardware 330 inserted into the concave-convex portion formed in the connection tube portion 130 to receive the hollow module 100, 330 and may be provided on the deck plate S or on the upper side of the dies S, as shown in FIG.

The mounting hardware 330 may be formed as a semi-circular member so as to be inserted into the concave-convex portion of the corrugated steel pipe P formed in the connecting tube portion 130.

The mounting hardware 330 may be formed as an arc-shaped member such that at least a part of the mounting hardware 330 is inserted into the concave-convex portion of the corrugated steel pipe P formed in the connecting tube portion 130.

The extension hardware 350 may be provided with a member of an inverted T-shaped cross section extending downward from the lower end of the mounting hardware 330,

When the deck plate S is installed at the lower portion, the lower end of the extended hardware 350 can be fixed while being welded to the deck plate S.

When the form S is disposed at the lower portion, the lower end portion of the extension hardware 350 can be mounted on the upper side of the installed formwork S.

The bottom structure of the present invention may further include an anti-buoyancy reinforcing bar 400 installed on the connection pipe 130 to prevent the connection pipe 130 from floating due to the pouring pressure of the concrete.

The anti-buoyancy reinforcement 400 may be welded to the upper side of the connecting tube portion 130.

Of course, it may be welded to the lower side of the connection tube portion 130, but it may be more preferable to weld the upper side of the connection tube portion 130 to stably support the connection tube portion 130.

The buoyancy restraining bar 400 may be fixed to the lower reinforcing bars 230 disposed in the lower side of the height direction of the concrete member 200 to prevent the connection tube portion 130 from being lifted by the pouring pressure of the concrete.

The lower reinforcing bars 230 may be installed on the lower side of the height direction of the concrete member 200 and may be spaced apart from each other by a predetermined distance in the longitudinal direction.

The buoyancy restraining bars 400 may be welded to the upper side of the connecting tube portion 130 and the hook members 410 may be formed at both ends.

The binding yarn T is provided on the hook member 410 formed at both ends of the buoyancy preventing reinforcing bar 400 and the binding yarn T may be fixed to the lower reinforcing bar 230 embedded in the concrete member 200 have.

At this time, the binding yarn T can be integrally fixed by connecting the hook member 410 of the hollow module body 100 disposed adjacent to the lower reinforcing bar 230 integrally.

As shown in FIG. 5, the hollow module 100 may include a first hollow module 100-1 and a second hollow module 100-2.

The hollow module body 100 includes a first hollow module body 100-1 forming the rectangular tube portion 130 and a second hollow module body 100-1 having a long side longer than the first hollow module 100-1 And a second hollow module body 100-2 forming the connection tube portion 130 having a long rectangular shape.

The first hollow module body 100-1 and the second hollow module body 100-2 are alternately installed inside the concrete member 200 to form heat, -2) may be disposed at a position corresponding to the boundary line of the hollow module body 100 in the adjacent row.

For example, at least a part of the second hollow module body 100-2 is located at a position corresponding to the boundary line between the first hollow module body 100-1 and the second hollow module body 100-2 forming the adjacent row .

The first hollow module body 100-1 and the second hollow module body 100-2 may be alternately installed one after another to form heat.

At this time, at least a part of the second hollow module 100-2 is connected to the boundary line between the first hollow module 100-1 and the second hollow module 100-2, And may be disposed at corresponding positions.

However, the first hollow module body 100-1 and the second hollow module body 100-2 are not only alternately arranged in order, but the first hollow module body 100-1 and the second hollow module body 100-2 are alternately arranged, It is needless to say that various embodiments including two or more of the second hollow module bodies 100-2 may be continuously provided and the remaining one may be alternately installed.

For example, the first hollow module body 100-1 may be configured to form a closed end face of a square, and the second hollow module body 100-2 may be configured to form a closed end face of a rectangular shape.

Preferably, the length of the long side of the first hollow module body 100-1 is set so that at least a part of the second hollow module body 100-2 is disposed at a position corresponding to the boundary line of the hollow module body 100 in the adjacent row And the length ratio of the long side of the second hollow module body 100-2 may be in the range of 1: 1.3 to 1.7.

The construction process of the floor structure of the present invention will be briefly described below.

A deck plate S or a mold S for pouring the concrete member 200 is installed and the lower reinforcing bar 230 is placed on the upper side of the deck plate S or the formwork S, The hollow module body 100 may be spaced apart, the upper reinforcing bar 210 may be laid, and the concrete may be laid to form the concrete member 200.

At this time, the supporting hardware 300 may be installed on one side of the connecting tube part 130 of the hollow module body 100 to stand on the deck plate S or the formwork S before the concrete is laid.

The buoyancy restraining bar 400 installed on the upper portion of the hollow module body 100 may be fixed to the lower reinforcing bar 230 disposed below the concrete member 200 by using a binding yarn T Can be fixed.

Although the embodiments of the present invention have been described in detail, it is to be understood that the scope of the present invention is not limited to the above embodiments and various changes and modifications may be made without departing from the scope of the present invention. It will be obvious to those of ordinary skill in the art.

100: hollow module body 100-1: first hollow module body
100-2: second hollow module body 110: central cavity portion
130: connecting tube part 131: first hollow member
133: second hollow member 200: concrete member
210: upper reinforcing bar 230: lower reinforcing bar
300: support hardware 310: frame bar
330: Mounting hardware 350: Extension hardware
400: buoyancy reinforcing bar 410: hook member
D1: first direction D2: second direction
L: Border
P: corrugated steel pipe Q: inclined surface
R: hollow portion S: deck plate, die
T: bonding thread W: welded part

Claims (9)

A plurality of hollow module bodies are spaced apart and embedded,
A hollow module body for introducing two or more hollow portions having different directions along an installation surface of the bottom structure; And
And a concrete member disposed to surround the hollow module body,
In the hollow module body,
A central cavity formed in the central region; And
And a connection pipe portion connected to a metal pipe having a corrugated cross section so as to surround the central cavity portion and having two or more hollow portions communicating with each other along the installation surface of the bottom structure,
Wherein the connecting tube portion comprises:
A pair of first hollow members spaced apart from each other by a hollow portion in a first direction along an installation surface of the bottom structure and spaced apart from each other by a predetermined distance; And
And a pair of second hollow members for introducing a hollow portion in a second direction along the installation surface of the bottom structure and connecting the ends of the pair of first hollow members to form a closed end face Bottom structure.
delete The connector according to claim 1,
Wherein the metal tube is cut while forming an inclined surface at an angle of 45 degrees and the inclined surface is welded to form a closed end face of a square shape surrounding the central cavity portion.
The method of claim 3,
Wherein the connection tube portion is provided in a rectangular shape having a length ratio between a short side and a long side in a range of 1: 1 to 1.2,
Wherein a length of the long side of the central cavity is in a range of 1 to 2 times the diameter of the metal tube.
delete The method according to claim 1,
And a supporting hardware installed on one side of the outer circumferential surface of the connecting tube portion to support the connecting tube portion in a heightwise central region of the concrete member.
7. The apparatus according to claim 6,
A mounting hardware inserted into the recessed portion formed in the connection tube portion to receive the hollow module body; And
And an extension hardware extending downward from the mounting hardware and installed on the deck plate or the formwork.
The method according to claim 1,
And a buoyancy restraining bar provided on the connecting tube part to prevent the connecting tube part from rising due to a pouring pressure of the concrete.
The air conditioner according to claim 1,
A first hollow module body forming the connecting tube portion in a rectangular shape;
And a second hollow module body that forms the rectangular tube-shaped connection tube portion having a longer side of the long side than the first hollow module body,
The first hollow module body and the second hollow module body are alternately installed in the concrete member to form heat,
Wherein at least a part of the second hollow module body is disposed at a position corresponding to a boundary portion in which the hollow module forming adjacent heat is spaced apart.

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