KR101391349B1 - Rebar structure of void concrete slab - Google Patents

Rebar structure of void concrete slab Download PDF

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Publication number
KR101391349B1
KR101391349B1 KR1020120055770A KR20120055770A KR101391349B1 KR 101391349 B1 KR101391349 B1 KR 101391349B1 KR 1020120055770 A KR1020120055770 A KR 1020120055770A KR 20120055770 A KR20120055770 A KR 20120055770A KR 101391349 B1 KR101391349 B1 KR 101391349B1
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South Korea
Prior art keywords
main
bracket
lightweight
wire
bound
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KR1020120055770A
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Korean (ko)
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KR20130131866A (en
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김형열
신성홍
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삼광선재 주식회사
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Abstract

The present invention can be applied to a structure in which the upper main and upper and lower main and lower power rods can be fixed on the spot without welding and the lightweight structure disposed between the upper and lower sides can be easily installed To a reinforcing structure for slabs.
The reinforcing steel structure for a hollow slab according to the present invention is characterized in that a lower extrusion head 31 and a lower main shaft 33 supported by a spacer SP are formed in a lattice form in a slab mold 1 composed of a plurality of deck plates 10 And the lower rear power rope 31 and the lower main rope 33 are bound together by a binding wire and the bolts 15 of the first bracket 14 for fixing the truss girder 12 to the deck plate 10 The second bracket 20 of the shape of "b" is mounted and the lightweight structure 40 is supported on the lower power axis 31 so that the plurality of lightweight structures 40 are arranged side by side in the same direction as the lower main axis 33 And the upper power extension rope 35 and the upper main rope 37 are installed in a lattice form on the upper portion of the lightweight structure 40. The upper power extension rope 35 and the upper main rope 37 are bound together by a binding wire , And the upper end of the vertical wire (29) to which the lower end is bound to the second bracket (20) is bound to the upper main wire (37).

Description

REBAR STRUCTURE OF VOID CONCRETE SLAB

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforced concrete structure for a hollow slab including a lightweight structure to be inserted into a hollow slab. More particularly, the present invention relates to a reinforced concrete structure having a plurality of lightweight structures disposed between a pair of lower- The lower rail and the upper rail are fixed by elastic bands. The vertical rail is connected to a bracket provided on the upper surface of the deck plate. The upper end of the vertical rail is connected to the upper main rail to pour concrete for slab molding The present invention relates to a reinforced concrete structure for a hollow slab capable of preventing the lightweight structure and the vicinity of the lower and upper portions from floating or changing positions due to the buoyancy of concrete.

Korean Patent Laid-Open Publication No. 10-2009-0050259 (published on May 20, 2009) discloses a "lightweight molding assembly of a tie bolt for a hollow slab and a hollow slab construction using the same".

The tie bolt-assembled lightweight molding assembly for a hollow slab comprises a welded wire netting cross-linked with a wire, a plurality of tie bolts vertically joined to the welded wire net under the welded wire net, and a lightweight unitary member having a through- A plurality of lightweight molding materials provided under the welding wire netting by projecting the lower ends of the tie bolts by inserting the tie bolts into the through holes, screwed to the lower ends of the respective tie bolts protruded from the through holes of the lightweight molding material, And a fastening nut for fastening.

However, in the conventional hollow slab construction, the hollow body is fixed by the upper and lower wire meshes and the upper and lower wire meshes are fixed by the tie bolts. Therefore, the work is difficult and the cost is increased. The tie wire to prevent injury of the hollow body is fixed to the lower part of the slab formwork so that it is tied to the upper reinforcing bar. This increases the work cost and increases the cost, and the form can not be reused because the form is punctured .

Accordingly, it is an object of the present invention to provide a lightweight structure in which a plurality of lightweight bodies are disposed between a pair of lower support wires and an upper support wire for convenient installation of a lightweight structure, the lower support wire and the upper support wire are fixed by elastic bands, When the concrete is poured to form the slab by binding the upper end of the vertical wire to the upper main beam and the concrete is poured into the bracket provided on the upper surface of the lightweight structure, And a reinforcing member for a hollow slab.

In order to accomplish the above object, a reinforcing steel structure for a hollow slab according to the present invention comprises a plurality of deck plates and a lower and a lower main frame supported by spacers in a form of a lattice, A lower bracket is attached to the bolt of the first bracket for fixing the truss girder to the deck plate, and a lightweight structure is supported on the lower bracket, so that a plurality of light weight The upper and lower main frames are arranged in the same direction as the lower main frame, the upper and lower main frames are arranged in a lattice shape on the upper part of the light weight structure, And an upper end of the bundled vertical wire is bound to an upper main wire.

The deck plate is made of a plastic material, and two truss girders are arranged side by side on the lower surface. The truss girder is fixed to the lower surface of the deck plate, The cutting groove is inserted and the nut is fastened to the bolt so that the horizontal portion of the second bracket is fixed to the upper surface of the deck plate and the lower end of the vertical wire is bound to the wiring hole formed in the vertical portion of the second bracket .

Wherein the lightweight structure is formed by arranging a plurality of lightweight bodies in a pair in a pair of lower bearing steel bars, placing the upper bearing steel bar on the upper portion of the lightweight body, And each of the rings connected to the end portion is hooked to the pair of lower supporting bars.

Accordingly, the reinforcing steel structure for a hollow slab according to the present invention has a structure in which a plurality of lightweight bodies are disposed between a pair of lower supporting wires and an upper supporting wire so that the lightweight structure is easily installed, And when the concrete is poured into the bracket provided on the upper surface of the deck plate for binding the vertical wire and the upper end of the vertical wire to the upper main shaft to form the slab, It is possible to prevent the vicinity of the phase and the position from being changed.

1 is a perspective view showing a reinforcing steel structure for a hollow slab according to the present invention;
2 is a partially enlarged side view showing a reinforcing structure for a hollow slab according to the present invention
3 is a perspective view showing a deck plate according to the present invention.
4 is a perspective view showing the second bracket;
Fig. 5 is a perspective view showing a light-

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

1 and 2, a reinforcing steel structure for a hollow slab according to the present invention includes a lower expansion rope 31 supported by a spacer SP on a slab mold 1 composed of a plurality of deck plates 10, The lower main shaft 33 and the lower main shaft 33 are connected by a coupling line (not shown), and the truss girder 12 is fixed to the deck plate 10 The second bracket 20 is mounted on the bolt 15 of the first bracket 14 and the light weight structure 40 is supported on the lower power leg 31 to form a plurality of lightweight structures 40 are arranged in the same direction as the lower major axis 33 and the upper and lower main axes 35 and 37 are arranged in a lattice form on the upper part of the lightweight structure 40. The upper and lower axes 35, And the upper end of the vertical wire 29 joined to the lower end of the second bracket 20 is engaged with the upper end of the upper main wire 37, It is bound to the main root portion (37).

Thus, when the concrete is placed in the slab formwork 1, the reinforcing bar structure for a hollow slab according to the present invention is constructed such that the buoyancy of the concrete causes the lower expansion roots 31 and the lower main ropes 33, It is possible to prevent the upper boom rope 35 and the boom rope 37 from rising above the concrete, and there is an advantage that the rebar can be quickly installed at the construction work site without welding.

2 to 4, the deck plate 10 is made of a plastic material, and two truss girders 12 are arranged side by side on the lower surface, and the truss girder 12 is fixed to the lower surface The cutout groove 22 of the horizontal portion 21 of the second bracket 20 formed in the shape of the letter "b" is fitted to the bolt 15 of the first bracket 14 and the nut 16 is fastened to the bolt 15 The horizontal portion 21 of the second bracket 20 is fixed to the upper surface of the deck plate 10 and the wire hole 24 formed in the vertical portion 23 of the second bracket 20 is fastened to the upper surface of the deck plate 10, (29) are connected to each other.

As a result, when the deck plate 10 is pulled downward when the deck plate 10 is demolded by inserting the bolts 15 into the incision groove 22, the second bracket 20 is deformed and the bolts 15 15 are released from the cutout groove 22, so that the deck plate 10 can be easily demoulded. The lower end of the vertical wire 29 is connected to the binding hole 24 and the upper end of the vertical wire 29 is bound to the upper main wire 50 so that the vertical reinforcement 29 holds the upper main wire 50 The buoyancy of the concrete can prevent the lower and upper main ropes 31 and 33, the lightweight structure 40, the upper boom rope 35 and the boom rope 37 from floating on the concrete when the concrete is poured. have.

2 and 5, the lightweight structural body 40 includes a plurality of lightweight bodies 43 arranged in a line on a pair of lower supporting bars 41 and 42, Each of the rings 45a and 45b connected to the opposite ends of the elastic band 45 is paired with a pair of elastic rods 45 so that the restraining bar 44 is disposed and the middle portion of the elastic band 45 presses the upper support bar 44 Respectively, to the lower support bars 41 and 42, respectively.

Thereby, the lightweight structural body 40 can be easily assembled without welding.

10: deck plate 20: second bracket
31: Lower power output 33: Lower main power
35: upper boom muscle 37: upper main muscle
40: Lightweight structure

Claims (3)

  1. A lower expansion rope 31 and a lower main rope 33 supported by a spacer SP are installed in a lattice form in a slab mold 1 composed of a plurality of deck plates 10, The lower main shaft 33 is bound by the binding wire and the bolts 15 of the first bracket 14 for fixing the truss girder 12 to the deck plate 10 are fastened to the second bracket 20 And a plurality of lightweight structural bodies 40 are arranged in parallel with the lower main body muscle 33 in the same direction as the lightweight structural bodies 40 are supported on the lower power distribution rods 31, The upper and lower main brackets 35 and 37 are arranged in a lattice shape and the upper and lower main brackets 35 and 37 are bound together by a binding wire, The upper end of the vertical wire 29 is bound to the upper main winding 37,
    The deck plate 10 is made of a plastic material and two truss girders 12 are arranged side by side on the lower surface of the deck plate 10. The deck plate 10 is fixed to the bottom surface of the truss girder 12 by bolts The cutout groove 22 of the horizontal portion 21 of the second bracket 20 formed in the shape of the letter "B" is fitted in the second bracket 20 and the nut 16 is fastened to the bolt 15, The lower end of the vertical wire 29 is connected to the wiring hole 24 formed in the vertical portion 23 of the second bracket 20 Reinforced structure for hollow slabs.
  2. delete
  3. The method according to claim 1,
    The lightweight structure 40 is formed by arranging a plurality of lightweight bodies 43 in a row on a pair of bottom support reinforcing bars 41 and 42 and a top supporting reinforcing bar 44 on the light weighting body 43, Each of the rings 45a and 45b connected to both ends of the elastic band 45 is connected to the pair of lower support bars 41 and 42 so that the middle portion of the elastic band 45 presses the upper support bar 44 And the reinforcing structure for a hollow slab.
KR1020120055770A 2012-05-25 2012-05-25 Rebar structure of void concrete slab KR101391349B1 (en)

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Application Number Priority Date Filing Date Title
KR1020120055770A KR101391349B1 (en) 2012-05-25 2012-05-25 Rebar structure of void concrete slab

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KR101391349B1 true KR101391349B1 (en) 2014-05-02

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160116176A (en) * 2015-03-26 2016-10-07 삼성물산 주식회사 Deckplate Combined Hollow Ball and Composite Plate Structure Using the Same

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101527716B1 (en) * 2014-05-30 2015-06-11 삼성물산 주식회사 The buoyancy protection device of hollow former and construction method of two-way hollow core slab using the same
KR101531493B1 (en) * 2014-11-14 2015-06-25 주식회사 덕신하우징 Stripping Deck Plate End Supporter
KR101628255B1 (en) * 2014-12-19 2016-06-08 삼광선재 주식회사 Heat-insulation deck and method for installing the heat-insulation deck
KR101753805B1 (en) * 2015-09-25 2017-07-05 삼성물산(주) Form Unit with Drawing-out Type Coupler Bar for Hollow Core Slab, System Form Using the Same and Construction Method of Hollow Core Slab
KR101715746B1 (en) 2016-06-01 2017-03-15 조상규 Spacer assembly for slab structure integrated a plurality of the spacers
KR102080976B1 (en) * 2017-09-29 2020-04-23 김영학 Construction method of Iron bar Fixing Device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000240207A (en) * 1999-02-25 2000-09-05 Yasuo Hirano Installation of void member of hollow slab
JP2005068910A (en) 2003-08-27 2005-03-17 Penta Ocean Constr Co Ltd Construction method of concrete slab

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000240207A (en) * 1999-02-25 2000-09-05 Yasuo Hirano Installation of void member of hollow slab
JP2005068910A (en) 2003-08-27 2005-03-17 Penta Ocean Constr Co Ltd Construction method of concrete slab

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160116176A (en) * 2015-03-26 2016-10-07 삼성물산 주식회사 Deckplate Combined Hollow Ball and Composite Plate Structure Using the Same
KR101683675B1 (en) * 2015-03-26 2016-12-08 삼성물산(주) Deckplate Combined Hollow Ball and Composite Plate Structure Using the Same

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