WO2008018174A1 - Procédé pour construire une dalle vide - Google Patents

Procédé pour construire une dalle vide Download PDF

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Publication number
WO2008018174A1
WO2008018174A1 PCT/JP2007/000844 JP2007000844W WO2008018174A1 WO 2008018174 A1 WO2008018174 A1 WO 2008018174A1 JP 2007000844 W JP2007000844 W JP 2007000844W WO 2008018174 A1 WO2008018174 A1 WO 2008018174A1
Authority
WO
WIPO (PCT)
Prior art keywords
void
truss
constructing
formwork
slab
Prior art date
Application number
PCT/JP2007/000844
Other languages
English (en)
Japanese (ja)
Inventor
Akiko Takahashi
Original Assignee
Akiko Takahashi
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=39032715&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2008018174(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Akiko Takahashi filed Critical Akiko Takahashi
Publication of WO2008018174A1 publication Critical patent/WO2008018174A1/fr

Links

Classifications

    • 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
    • E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
    • E04B5/38—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element
    • E04B5/40—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element with metal form-slabs
    • 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
    • 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
    • E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor

Definitions

  • the present invention relates to a void slab method for reducing the weight of a concrete slab.
  • the present invention relates to a method for constructing a void slab using a deck plate in which a substrate and a reinforcing bar are integrated.
  • the void slab method is to reduce the weight of the floor slab by forming a void in the floor slab.
  • a hollow metal tube or foamed resin is placed in the floor slab.
  • the concrete is laid.
  • a metal hollow tube is formed as a void formwork 1 in a space surrounded by upper end bars 4 and 4 1 and lower end bars 5 and 5 1, which are arranged using a truss 3.
  • a void formwork 1 was formed as a space surrounded by upper end bars 4 and 4 1 and lower end bars 5 and 5 1, which are arranged using a truss 3.
  • the buoyancy caused by the cast concrete acts to lift the void formwork, so it was necessary to install a separate fixture to prevent the movement of the void formwork, and the application was complicated.
  • upper floor bars 4 and 4 1 and lower floor bars 5 and 5 1 are arranged in a grid pattern on the floor slab form, and a foam form 1 made of foamed resin is placed in each grid. It has been proposed to place and hold concrete to prevent movement with reinforcing bars and to cast concrete.
  • Patent Document 1 Japanese Patent Laid-Open No. 2 00 0 _ 1 2 0 2 0 3
  • Patent Document 2 Japanese Patent No. 3 6 5 8 5 50
  • Patent Document 3 Japanese Patent Laid-Open No. 2 0 0 _ 2 2 0 5 7 1
  • the fixture 30 is attached to the reinforcing bar as shown in Fig.15.
  • a method has been adopted in which a hook or the like is fixed to the floor slab form to prevent the lift of the board form form.
  • the size of the floor slab form is approximately 90 x 1 20 cm. Therefore, the force that lifts the floor slab formwork due to the buoyant force acting on the void formwork. This lifting force does not act evenly on each formwork, so it is easy to make a mistake in the joints of the formwork and harden the concrete. Later, repairs will be required, which will be time consuming.
  • the conventional method requires duplication of rebar construction work, in which the formwork is laid on the bottom bar during rebar construction, and then the top bar is placed again. After the completion of the construction of the upper and lower rebars spaced so that they can be inserted, it is necessary to have two types of workers, such as inserting the void formwork between the rebars. Since it spans two occupations, work efficiency was poor, which was a factor in increasing costs.
  • This invention makes it possible to easily attach a foam form made of foamed resin to a predetermined position, reduce work in the building as much as possible, increase work efficiency, and reduce costs. .
  • FIG. 1 is an explanatory diagram of an assembling procedure of the deck play basket of the present invention.
  • FIG. 2 is a perspective view of the assembled state.
  • FIG. 3 is a sectional view of the assembled state.
  • FIG. 4 is a cross-sectional view and a front view provided with means for preventing lifting.
  • FIG. 5 A cross-sectional view and a front view of the lifting prevention reinforcing bar.
  • FIG. 6 is an explanatory diagram of a cross-sectional shape of a void formwork.
  • FIG. 7 is a perspective view of the two-way slab assembled.
  • FIG. 8 is a sectional view of the two-way slab assembled.
  • FIG. 9 is a cross-sectional view of a modified example of a truss reinforcing bar.
  • FIG. 1 1 Cross-sectional view of deck plate with void formwork installed between truss rebars and cross-sectional view of assembled state.
  • FIG. 12 is an explanatory diagram when an air pocket is formed on the bottom surface of the void formwork.
  • FIG. 13 is a plan view and a perspective view of a void mold frame in which an air escape groove is formed on the bottom surface of the void mold frame.
  • FIG. 14 An explanatory diagram of the conventional void slab method.
  • FIG. 15 An illustration of the conventional void slab method.
  • FIG. 16 An illustration of the conventional void slab method.
  • the deck plate 20 is made of a thin steel plate as a substrate, the truss rebar 3 is welded to the substrate 2 at an appropriate interval, and the upper rebar 4 and the lower rebar 5 are welded to the truss rebar 3. .
  • the truss can be either a flat truss or a solid truss.
  • a joint 21 for connecting the substrates to each other is formed on the side surface of the substrate 2.
  • the joint 21 is a foldable joint, which is integrated by crimping the joints together.
  • the shape of the truss rebar 3 of the deck plate 20 may be deformed as shown in FIG.
  • the void form 1 is a columnar body made of polystyrene foam having an elliptical cross section, and grooves 11 are formed on both side surfaces in accordance with the distance between the truss reinforcing bars 3.
  • Figure 3 shows a cross section of the assembled deck plate.
  • the void form frame 1 is fixed by inserting a truss rebar 3 of a deck play rod into a groove 11 provided on a side surface thereof.
  • the pitch of truss reinforcing bars is about 200 mm, and the fixation of the rod slab is a short pitch. Therefore, even if buoyancy is applied by placing concrete, the foam form 1 made of foamed resin is deformed, Transfer There is no movement.
  • the same effect can be obtained by fixing the presser reinforcing bar 3 2 for preventing the void of the void form frame 1 to the upper part of the truss reinforcing bar 3 by welding or the like.
  • the cross-section of the Pod Form 1 is not limited as long as it can be installed between the truss bars 3.
  • Ellipse including circle and sphere
  • Chamfered corners at the bottom of the square cross section (3) Rectangle and (4) Chamfered four corners of a square cross section.
  • the orthogonal reinforcing bars 41 and 51 are arranged.
  • a two-way void slab can be constructed.
  • a two-way void slab consists of a beam with an I-shaped section between the void formwork and the void formwork, and a perforated beam (truss beam) that is formed by the continuous insertion of the void formwork.
  • This slab uses the lattice beam effect.
  • the void form 1 is made short to form a lattice beam, and the void form 1 is arranged with an interval corresponding to the formation of the beam. .
  • Reinforcing bars 4 2 and 5 2 are arranged in this space. Therefore, the void formed on the floor slab is an isolated one surrounded by lattice beams.
  • the substrate of the deck plate is a thin steel plate
  • the substrate can be bent. If a force is applied to the side to widen the space between the truss reinforcing bars fixed to the board, the board can be bent upwards as shown in Fig. 1 1 (1), and the space between the parallel truss reinforcing bars becomes wider. Utilizing this, the rod form 1 is pushed between the truss rebars from above, and the truss rebar is inserted into the groove formed on the side of the void form 1. When the force applied to the truss rebar is released, the flexure of the board will return to its original state.
  • the void formwork is firmly fixed from both sides by the truss rebar.
  • the slab formwork is completed by connecting the deck plate to which the podium formwork 1 is fixed.
  • the finished slab formwork is lifted by appropriate means and placed at a predetermined position in the building, thereby completing the installation of the formwork of the boy slab.
  • the present invention has been described in the case of using a deck plate having a steel plate as a substrate. However, when inserting a board slab from the side, even if the substrate is a PC version, the present plate can be used by adopting an appropriate joint. The invention can be applied.
  • Figure 13 (1) shows the pattern of the groove 11 formed on the bottom surface of the void form 1 and prevents the formation of a gap to the side
  • Figure 13 (2) shows its perspective view. Show.
  • the groove 11 can be formed not only by cutting the surface of the void form 1 to form a groove, but also by forming conical or hemispherical protrusions continuously or discontinuously.
  • This invention uses a deck plate and uses the deck plate truss as a presser.
  • the deck form with the groove formed on the side is used as the deck frame. It is fixed so that it fits in the groove of the deck, and another deck plate is connected so that the void formwork is positioned at the joint of the deck plate. It is only a deck plate with a reinforcing bar and a void formwork, and does not require any other fixtures, so construction is easy and efficient. Since the gap between the holding positions of the void formwork is shorter than the conventional method, even if buoyancy is applied to the void formwork, the force acting on each point is small, so the deformation amount of the void formwork can be reduced. There is almost no movement, and it is possible to form a void at a predetermined position.
  • the work of assembling the void formwork to the deck plate can be performed near the building under construction or on a flat part inside and outside the building, and a certain area assembled can be carried by a crane, so the work can be done efficiently and cost can be reduced. It can be reduced.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Abstract

L'invention concerne l'utilisation d'une dalle de terrasse (20) où des barres d'armature (3) sont soudées, avec un intervalle approprié, sur le substrat (2) d'une tôle d'acier mince, et une barre d'extrémité supérieure (4) et une barre d'extrémité inférieure (5) sont soudées aux barres d'armature (3), une forme d'espace vide colonnaire (1) constituée d'une résine alvéolaire présentant une section transversale elliptique et comportant des rainures dans les faces latérales opposées est poussée dans les barres d'armature (3) et est fixée, empêchant ainsi la forme d'espace vide de flotter. Les substrats (2) sont connectés à l'extérieur d'un bâtiment et sont assemblés à une taille requise, et l'ensemble est transporté dans un bâtiment et installé au moyen d'une grue. Ensuite, du béton est placé pour construire une dalle vide, ce qui permet de réaliser la construction rapidement.
PCT/JP2007/000844 2006-08-07 2007-08-07 Procédé pour construire une dalle vide WO2008018174A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2006214823 2006-08-07
JP2006-214823 2006-08-07
JP2007-011627 2007-01-22
JP2007011627A JP4943168B2 (ja) 2006-08-07 2007-01-22 ボイドスラブの構築方法

Publications (1)

Publication Number Publication Date
WO2008018174A1 true WO2008018174A1 (fr) 2008-02-14

Family

ID=39032715

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/000844 WO2008018174A1 (fr) 2006-08-07 2007-08-07 Procédé pour construire une dalle vide

Country Status (2)

Country Link
JP (1) JP4943168B2 (fr)
WO (1) WO2008018174A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20110323A1 (it) * 2011-06-06 2012-12-07 .L. Pannelli di allegerimento per strutture in calcestruzzo
JP2013007229A (ja) * 2011-06-27 2013-01-10 Shigeru Yaguchi スラブ構築方法およびデッキプレート構造物
EP3228773A1 (fr) * 2016-04-06 2017-10-11 Daniel Hagmann Élément de renfort
CN109629750A (zh) * 2018-12-20 2019-04-16 西南交通大学 一种铁路接触网斜腿钢柱加固方法
CN110725457A (zh) * 2019-11-18 2020-01-24 上海中森建筑与工程设计顾问有限公司 一种可拆支撑的装配式叠合楼板及其施工方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5419247B2 (ja) * 2008-12-15 2014-02-19 滋 矢口 デッキプレート
KR102443981B1 (ko) * 2020-08-13 2022-09-20 노영곤 강관철근을 이용한 장스팬용 무지보 데크플레이트 구조

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1082127A (ja) * 1996-09-09 1998-03-31 Yasuo Kagami 鉄筋コンクリート床板型枠及び該床板型枠を設置したコンクリート構築物
JP2001107317A (ja) * 1999-10-08 2001-04-17 Nkk Corp 床版およびその継手構造
JP2003027647A (ja) * 2001-07-16 2003-01-29 Fujisho Giken:Kk デッキプレート及びコンクリートスラブ
JP2004100286A (ja) * 2002-09-10 2004-04-02 Kumagai Gumi Co Ltd 床スラブの構造及びこれに使用されるブロック
JP2004100383A (ja) * 2002-09-12 2004-04-02 Yoshida Komuten:Kk 型枠合板残材を有効利用したボイドスラブの構築方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1082127A (ja) * 1996-09-09 1998-03-31 Yasuo Kagami 鉄筋コンクリート床板型枠及び該床板型枠を設置したコンクリート構築物
JP2001107317A (ja) * 1999-10-08 2001-04-17 Nkk Corp 床版およびその継手構造
JP2003027647A (ja) * 2001-07-16 2003-01-29 Fujisho Giken:Kk デッキプレート及びコンクリートスラブ
JP2004100286A (ja) * 2002-09-10 2004-04-02 Kumagai Gumi Co Ltd 床スラブの構造及びこれに使用されるブロック
JP2004100383A (ja) * 2002-09-12 2004-04-02 Yoshida Komuten:Kk 型枠合板残材を有効利用したボイドスラブの構築方法

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20110323A1 (it) * 2011-06-06 2012-12-07 .L. Pannelli di allegerimento per strutture in calcestruzzo
JP2013007229A (ja) * 2011-06-27 2013-01-10 Shigeru Yaguchi スラブ構築方法およびデッキプレート構造物
EP3228773A1 (fr) * 2016-04-06 2017-10-11 Daniel Hagmann Élément de renfort
CN109629750A (zh) * 2018-12-20 2019-04-16 西南交通大学 一种铁路接触网斜腿钢柱加固方法
CN110725457A (zh) * 2019-11-18 2020-01-24 上海中森建筑与工程设计顾问有限公司 一种可拆支撑的装配式叠合楼板及其施工方法

Also Published As

Publication number Publication date
JP2008063929A (ja) 2008-03-21
JP4943168B2 (ja) 2012-05-30

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