KR20150071957A - Buoyancy prevention module used for void slab - Google Patents

Buoyancy prevention module used for void slab Download PDF

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Publication number
KR20150071957A
KR20150071957A KR1020130159117A KR20130159117A KR20150071957A KR 20150071957 A KR20150071957 A KR 20150071957A KR 1020130159117 A KR1020130159117 A KR 1020130159117A KR 20130159117 A KR20130159117 A KR 20130159117A KR 20150071957 A KR20150071957 A KR 20150071957A
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KR
South Korea
Prior art keywords
reinforcing bars
slab
truss
buoyancy
molding material
Prior art date
Application number
KR1020130159117A
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Korean (ko)
Inventor
강수민
방중석
Original Assignee
대림산업 주식회사
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Application filed by 대림산업 주식회사 filed Critical 대림산업 주식회사
Priority to KR1020130159117A priority Critical patent/KR20150071957A/en
Publication of KR20150071957A publication Critical patent/KR20150071957A/en

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/326—Floor structures wholly cast in situ with or without form units or reinforcements with hollow filling elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
    • E04C5/065—Light-weight girders, e.g. with precast parts

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Reinforcement Elements For Buildings (AREA)

Abstract

The purpose of the present invention is to provide a buoyancy prevention module for a void slab to form a long span void slab. To achieve this, the buoyancy prevention module for a void slab reinforces fixates a light forming material against buoyancy caused by the placement of concrete while carrying out the shear reinforcement of a slab, allows the integrated installation of piping facilities, and facilitates the construction of a void slab with the use of a unit assembly. For this, the buoyancy prevention module for a void slab is made of a unit assembly joined with truss re-bars and the light forming materials, wherein the truss re-bars are arranged at predetermined intervals for the shear reinforcement of a long span slab and a buoyancy prevention re-bar is integrated with the top of the truss re-bars to fixate the light forming materials against buoyancy caused by the placement of concrete.

Description

Buoyancy prevention module used for hollow slabs [0002]

The present invention relates to an anti-buoyancy type module used in a flat plate (or flat slab) of a flat plate structure, wherein a truss reinforcing bar is disposed in the slab and a lightweight forming material is fixed between the truss reinforcing bars to prevent unnecessary concrete To a buoyancy prevention type module used for a hollow slab in which a slab is made lightweight.

Conventionally, a continuous hollow portion is formed in the slab or a hollow slab is formed by installing various lightweight molding materials in the slab. The hollow slab is advantageous for realizing the long-span slab, reducing the interlayer noise, Has been practically used.

Fig. 1B is a perspective view showing that a lightweight molding material of the prior art is installed on an upper portion of a lower main slab of a slab, Fig. 2 is a partial perspective view of Fig. 1A, A hollow slab 40 is formed by installing a lightweight molding material 30 between an upper main rope 10 and a lower main rope 20 so as to form a hollow portion inside the slab,

The conventional technique has no means for fixing the lightweight molding material, so it is not easy to install the lightweight molding material between the upper main muscle and the lower main muscle, and lacks the means for shearing the slab when forming the long span hollow slab.

Therefore, in order to form a long span hollow slab used as a flat plate (or flat slab) of a flat plate structure, the lightweight molding material is fixed while the slab is reinforced by shearing, and the lightweight molding material is fixed to the buoyancy by the concrete, It is necessary to develop a technique for an anti-buoyancy type assembly that can be formed.

In the present invention, the slab is sheared to form a hollow slab of a long span, the lightweight molding material can be fixed to the buoyancy by concrete when the concrete is poured, the piping facilities can be integrally installed, And an object of the present invention is to provide an anti-buoyancy type module for use in a hollow slab forming a unit assembly.

In order to achieve the above-mentioned object, the present invention is characterized in that truss reinforcement bars are arranged at predetermined intervals for reinforcing the shear reinforcement of a long span slab, and a reinforcing bar for reinforcing buoyancy is provided on the truss reinforcing bars so that the light- So as to form a unit assembly in which the truss reinforcing bar and the lightweight molding material are combined.

In the buoyancy prevention type module used in the hollow slab according to an embodiment of the present invention, the truss reinforcing bars 60 are disposed at predetermined intervals in the hollow slab 40, and the lightweight molding material 30 is disposed between the truss reinforcing bars 60 A buoyancy preventing top reinforcing bar 65 protruding left and right by a predetermined length from the upper reinforcing bar 61 of the truss reinforcing bar 60 is welded to the upper reinforcing bar 61 at predetermined intervals so as to be fixed,

The lightweight molding material 30 is installed between the truss reinforcing bars 60 and both sides of the lightweight molding material 30 are fixed by the buoyancy preventing top reinforcing bars 65. [

In the buoyancy prevention type module used in the hollow slab according to another embodiment of the present invention, the truss reinforcing bars 60 are disposed at predetermined intervals in the hollow slab 40, and the lightweight molding material 30 is disposed between the truss reinforcing bars 60 The transverse reinforcing bar 66 connecting the upper reinforcing bars 61 of the truss reinforcing bars 60 provided from the one end truss reinforcing bar 60 to the other truss reinforcing bar 60 to be fixed in the longitudinal direction of the truss reinforcing bar 30 Welded at predetermined intervals,

A lightweight molding material 30 is installed between the truss reinforcing bars 60 and the lightweight molding material 30 is fixed by the buoyancy preventing lateral reinforcing bars 66. [

In the present invention, the truss reinforcing bars are installed at predetermined intervals, the buckling preventing reinforcing bars are integrally joined to the upper portion of the truss reinforcing bars at predetermined intervals, and the lightweight forming material is fixed between the truss reinforcing bars to increase the shearing performance of the long span slab ,

It is easy to fix the lightweight molding material in the inside of the slab, and the lightweight molding material is stably fixed when the concrete is poured, thereby improving the quality of the hollow slab.

Further, the present invention can provide a lightweight molding material continuously between the truss reinforcing bars to improve the hollow ratio inside the slab, thereby reducing unnecessary concrete in the slab, thereby reducing the weight of the slab, reducing the interlayer noise, There is an economical effect that construction cost is saved.

In addition, since the truss reinforcement and the light molding material are formed as a unit assembly, the construction can be simplified and air can be shortened, and the truss reinforcement can be installed integrally with the slab pipe installation. It is possible to realize a long span slab having an improved hollow ratio.

FIG. 1A is a cross-sectional view of a hollow slab with a lightweight molding material inside a conventional slab
Fig. 1B is a perspective view showing that a lightweight molding material of the prior art is installed on the upper main slab of a slab;
Fig. 2 is a partial perspective view of Fig.
3A is a perspective view of an anti-buoyancy type module according to an embodiment of the present invention.
3B is a perspective view of a truss reinforcing bar used in the buoyancy prevention type module of the present invention
FIG. 3c is a cross-sectional view of one side of the anti-buoyancy type module installed inside the slab
FIG. 3D is a sectional view of the other side of the buoyancy prevention type module, which is an embodiment of the present invention,
FIG. 5 is a perspective view of an anti-buoyancy type module according to another embodiment of the present invention. FIG. 5 is a perspective view of a buoyancy prevention type module according to another embodiment of the present invention. FIG.

The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments of the invention are shown.

In the present invention, the truss reinforcing bars are arranged at predetermined intervals so that the lightweight molding material can be fixed to the shearing reinforcement of the long span slab and the buoyancy caused by the concrete when the concrete is poured, and the reinforcing bars for preventing buoyancy are integrally joined to the upper portion of the truss reinforcing bars, Thereby forming a unit assembly to which the molding material is coupled.

3A is a perspective view of an anti-buoyancy type module according to an embodiment of the present invention. In the buoyancy prevention type module installed inside the slab, truss reinforcing bars 60 are disposed at predetermined intervals, and the upper reinforcing bars 61 , A buoyancy-preventing top reinforcing bar 65 protruding to the left and right by a predetermined length is welded to the upper reinforcing bar 61 at predetermined intervals.

A lightweight molding material 30 is continuously installed between the truss reinforcing bars 60 and a top reinforcing steel bar 65 protruding from the upper portion of the truss reinforcing bars 60 is welded to both sides of the lightweight molding material 30 Thereby preventing the displacement of the lightweight molding material 30 due to the buoyancy of concrete when the concrete is poured.

The lightweight molding material is made of a plastic material such as styrofoam or polyethylene (PE), and is formed of an empty hollow body. The shape of the lightweight molding material may be various shapes such as a sphere, a capsule, a rectangular parallelepiped, a cylinder and a dome.

FIG. 3B is a perspective view of a truss reinforcing bar used in the buoyancy prevention type module of the present invention, in which the upper reinforcing bar 61 and the lower reinforcing bar 62 are disposed with a predetermined distance from each other, , And the lower reinforcing bars (61, 62), the lattice reinforcing bars (63) are welded in a triangular shape,

V-shaped stand reinforcing bars 64 are welded at predetermined intervals to the upper reinforcing bars 61. Both lower sides of the stand reinforcing bars 64 are spaced downward at a predetermined interval from the lower reinforcing bars 62, 70 so as to improve the shear performance of the long span hollow slab.

FIG. 3C is a cross-sectional view of one side of the slab in which the buoyancy prevention type module is installed. FIG. 3D is another cross-sectional view of the buoyancy prevention type module, which is one embodiment of the present invention, The present invention is characterized in that an anti-buoyancy type module (50) is installed inside a slab and concrete is laid in the inside of a slab (50) to form a hollow slab (40).

By using the buoyancy prevention type module, the hollow slab 40 can improve the hollow ratio inside the slab from 15% to 30% of the conventional hollow slab 40, increase the shear performance of the long span slab,

In addition, by forming a hollow inside the slab, unnecessary concrete inside the slab is removed to reduce the slab weight by 30 to 50%, the interlayer noise is reduced, and the shear performance is improved by using the truss reinforcement.

5 is a perspective view of an anti-buoyancy type module according to another embodiment of the present invention. In the buoyancy prevention type module 50 according to another embodiment of the present invention, truss reinforcing bars 60 are disposed at predetermined intervals in a hollow slab 40,

A buoyancy preventing transverse reinforcement 66 connecting the upper reinforcing bars 61 of the truss reinforcing bars 60 installed from the truss reinforcing bars 60 to the truss reinforcing bars 60 at one side of the truss reinforcing bars 60 to the truss reinforcing bars 60 Welded to each other at predetermined intervals in the lengthwise direction,

A lightweight molding material 30 is provided between the truss reinforcing bars 60 at predetermined intervals and the lightweight molding material 30 is fixed by the buoyancy preventing lateral reinforcing bars 66.

Since the truss reinforcement and the light molding material are formed as a unit assembly, the construction of the slab can be improved and the air can be shortened, and the truss reinforcement and the lightweight molding material can be installed integrally with the slab pipe installation, and can be used as a flat plate (flat slab) It is possible to install span slab, and it has the advantage of saving the floor height.

10: upper main muscle 20: lower main muscle
30: lightweight molding material 40: hollow slab
50: Buoyancy prevention type module 60: Truss reinforcing bar
61: upper reinforcing steel 62: lower reinforcing steel
63: Lattice reinforcement 64: Stand reinforcement
65: Buoyant top reinforcing bar 66: Buoyant prevention lateral reinforcement
70: Slab formwork

Claims (3)

The truss reinforcing bars 60 are arranged at predetermined intervals inside the slab and the upper reinforcing bars 61 of the truss reinforcing bars 60 are fixed to the left and right sides of the truss reinforcing bars 60 so as to fix the lightweight molding material 30 between the truss reinforcing bars 60, The projected buoyancy preventing top reinforcing bars 65 are welded to the upper reinforcing bars 61 at predetermined intervals,
A lightweight molding material 30 is provided between the truss reinforcing bars 60 at predetermined intervals and both sides of the lightweight molding material 30 are fixed by the buoyancy preventing top reinforcing bars 65 A buoyancy prevention type module used for a hollow slab. The truss reinforcing bars 60 are arranged at predetermined intervals in the slab and the truss reinforcement 60 is installed between the truss reinforcement 60 and the truss reinforcing bars 60 so that the light- The buoyancy preventing lateral reinforcing bars 66 connecting the upper reinforcing bars 61 of the reinforcing bars 60 are welded at predetermined intervals in the longitudinal direction of the truss reinforcing bars 30,
Characterized in that a lightweight molding material (30) is provided between the truss reinforcing bars (60) at a predetermined interval and the lightweight molding material (30) is fixed by the buoyancy preventing lateral reinforcing bars (66) Buoyancy-proof module for hollow slabs. 3. The method according to claim 1 or 2,
The upper and lower reinforcing bars 61 and 62 are arranged at predetermined intervals on the truss reinforcing bars 60. The lattice reinforcing bars 63 are welded to each other between the upper and lower reinforcing bars 61 and 62,
V-shaped stand reinforcing bars 64 are welded at predetermined intervals to the upper reinforcing bars 61. Both lower sides of the stand reinforcing bars 64 are spaced downward at a predetermined interval from the lower reinforcing bars 62, 70), and is formed to have a predetermined length. ≪ RTI ID = 0.0 > 11. < / RTI >
KR1020130159117A 2013-12-19 2013-12-19 Buoyancy prevention module used for void slab KR20150071957A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
KR1020130159117A KR20150071957A (en) 2013-12-19 2013-12-19 Buoyancy prevention module used for void slab

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KR20150071957A true KR20150071957A (en) 2015-06-29

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180025614A (en) 2016-09-01 2018-03-09 오복순 A reservoir water system and thereof installation method for groundwater inflowing into the reservoir
KR20180085997A (en) 2017-01-20 2018-07-30 다스코 주식회사 Hollow slab deck plate adopting air pouch and method for constructing slab using the same
KR20180085998A (en) 2017-01-20 2018-07-30 다스코 주식회사 Hollow slab deck plate adopting foaming pouch and method for constructing slab using the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180025614A (en) 2016-09-01 2018-03-09 오복순 A reservoir water system and thereof installation method for groundwater inflowing into the reservoir
KR20180085997A (en) 2017-01-20 2018-07-30 다스코 주식회사 Hollow slab deck plate adopting air pouch and method for constructing slab using the same
KR20180085998A (en) 2017-01-20 2018-07-30 다스코 주식회사 Hollow slab deck plate adopting foaming pouch and method for constructing slab using the same

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