CA2268878A1 - Method of working connection end of deformed bar for reinforcing concrete, deformed bar worked by the method and structure deformed bar - Google Patents

Method of working connection end of deformed bar for reinforcing concrete, deformed bar worked by the method and structure deformed bar Download PDF

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Publication number
CA2268878A1
CA2268878A1 CA002268878A CA2268878A CA2268878A1 CA 2268878 A1 CA2268878 A1 CA 2268878A1 CA 002268878 A CA002268878 A CA 002268878A CA 2268878 A CA2268878 A CA 2268878A CA 2268878 A1 CA2268878 A1 CA 2268878A1
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CA
Canada
Prior art keywords
deformed bar
connection end
end portion
working
connection
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002268878A
Other languages
French (fr)
Other versions
CA2268878C (en
Inventor
Gyeng Ok Chung
Chung Ki Yoo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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=32965900&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2268878(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority to KR1019980014746A priority Critical patent/KR100248963B1/en
Priority to CN99104528A priority patent/CN1239172A/en
Priority to JP11091764A priority patent/JPH11342448A/en
Priority to AU22574/99A priority patent/AU2257499A/en
Priority to EP99302528A priority patent/EP0947642B1/en
Application filed by Individual filed Critical Individual
Priority to CA002268878A priority patent/CA2268878C/en
Priority to TW088109033A priority patent/TW440482B/en
Publication of CA2268878A1 publication Critical patent/CA2268878A1/en
Publication of CA2268878C publication Critical patent/CA2268878C/en
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • E04C5/162—Connectors or means for connecting parts for reinforcements
    • E04C5/163—Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
    • E04C5/165—Coaxial connection by means of sleeves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
    • B21B1/163—Rolling or cold-forming of concrete reinforcement bars or wire ; Rolls therefor
    • 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
    • E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
    • E04C5/03—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance with indentations, projections, ribs, or the like, for augmenting the adherence to the concrete

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Forging (AREA)

Abstract

With an object of providing a method of working a connection end portion of deformed bar for reinforcing concrete considerably reducing working expense by enhancing easiness of working by promoting mechanical strength of a connection portion by being able to work the connection portion without destructing a steel skeleton structure of a connection portion between pieces of steel bar, deformed bar worked by the method and a connection structure of deformed bar, the invention provides a method of working a connection end portion of deformed bar for reinforcing concrete featured in comprising a swaging step in which in deformed bar for reinforcing concrete featured in swaging at least a connection end portion at normal temperature and forming a rolled thread portion at an outer peripheral face of the connection end portion of the deformed bar subjected to the swaging step in which at least one connection end portion is swaged at a normal temperature such that a maximum diameter of the connection end portion is equal to or slightly larger than a diameter of a cylindrical body of the deformed bar or slightly smaller than a diameter of the deformed bar depending on a degree of working;
and a rolling step of forming a thread portion having a diameter substantially equal to a swaging diameter at an outer peripheral face of the connection end portion of the deformed bar which has been subjected to the swaging step.
CA002268878A 1998-03-31 1999-04-13 Method of working connection end of deformed bar for reinforcing concrete, deformed bar worked by the method and structure deformed bar Expired - Lifetime CA2268878C (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
KR1019980014746A KR100248963B1 (en) 1998-03-31 1998-04-24 Thread formation on rods and the method of preparation of them
JP11091764A JPH11342448A (en) 1998-03-31 1999-03-31 Method of machining connected end portion of deformed bar for concrete reinforcing and deformed bar machined by this method and connection structure of deformed bar
AU22574/99A AU2257499A (en) 1998-03-31 1999-03-31 Method of working connection end of deformed bar for reinforcing concrete, deformed bar worked by the method and structure of connecting deformed bar
EP99302528A EP0947642B1 (en) 1998-03-31 1999-03-31 Method of working connection end of deformed bar for reinforcing concrete
CN99104528A CN1239172A (en) 1998-03-31 1999-03-31 Processing method and connection structure of joint end of reinforced special and steel for concrete
CA002268878A CA2268878C (en) 1998-03-31 1999-04-13 Method of working connection end of deformed bar for reinforcing concrete, deformed bar worked by the method and structure deformed bar
TW088109033A TW440482B (en) 1998-03-31 1999-06-01 Manufacture method for concrete-strengthening deformed reinforcement bar and its connecting ends

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR19980011278 1998-03-31
CA002268878A CA2268878C (en) 1998-03-31 1999-04-13 Method of working connection end of deformed bar for reinforcing concrete, deformed bar worked by the method and structure deformed bar
TW088109033A TW440482B (en) 1998-03-31 1999-06-01 Manufacture method for concrete-strengthening deformed reinforcement bar and its connecting ends

Publications (2)

Publication Number Publication Date
CA2268878A1 true CA2268878A1 (en) 2000-10-13
CA2268878C CA2268878C (en) 2003-04-29

Family

ID=32965900

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002268878A Expired - Lifetime CA2268878C (en) 1998-03-31 1999-04-13 Method of working connection end of deformed bar for reinforcing concrete, deformed bar worked by the method and structure deformed bar

Country Status (7)

Country Link
EP (1) EP0947642B1 (en)
JP (1) JPH11342448A (en)
KR (1) KR100248963B1 (en)
CN (1) CN1239172A (en)
AU (1) AU2257499A (en)
CA (1) CA2268878C (en)
TW (1) TW440482B (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100515204B1 (en) * 1998-04-13 2005-11-21 신우산업 주식회사 Connection structure of reinforcing bar for concrete reinforcement and processing method of the connection
AU757918B2 (en) * 1999-02-12 2003-03-13 Industrial Rollformers Pty Ltd Method for externally threading a deformed bar
WO2000047349A1 (en) * 1999-02-12 2000-08-17 Industrial Rollformers Pty. Ltd. Method for externally threading a deformed bar
EP1048798B1 (en) * 1999-04-22 2001-10-24 Ancotech Ag Method for manufacturing externally threaded reinforcing bars
EP1154092A1 (en) * 2000-05-09 2001-11-14 Schöck Enwicklungsgesellschaft mbH Sleeve connection for reinforcing bars
KR20020065969A (en) * 2001-02-08 2002-08-14 김순분 Machining method of a screw for a reinforcement bar
KR100449977B1 (en) * 2002-04-04 2004-10-01 김광희 Connecting structure of reinforced bar for reinforced concreate
US6880224B2 (en) * 2003-06-25 2005-04-19 Erico International Corporation Deformed reinforcing bar splice and method
US7624556B2 (en) * 2003-11-25 2009-12-01 Bbv Vorspanntechnik Gmbh Threaded deformed reinforcing bar and method for making the bar
ES2238930B1 (en) * 2004-02-20 2007-05-16 Compañia Española De Laminacion, S.L. BAR FOR CONCRETE CONCRETE.
SG155801A1 (en) * 2008-03-24 2009-10-29 Chua Bong Sai Method for working a thread on deformed reinforcing bar
CN101618509B (en) * 2009-07-30 2010-09-29 廊坊凯博建设机械科技有限公司 Equipment and method for processing steel reinforced bar threads
FR2952840B1 (en) * 2009-11-26 2013-08-02 Edgard Henri Gerard Albert Thirion ARMATURE BONDING DEVICE AND METHOD FOR MANUFACTURING THE SAME
WO2012029079A2 (en) * 2010-09-03 2012-03-08 Gaurav Malhotra Reinforcing bar coupling and method
JP5420712B2 (en) * 2012-04-19 2014-02-19 株式会社トーカイ Deformed bar threaded rebar joint and its threaded deformed bar
CN104060770B (en) * 2013-03-22 2016-03-30 中冶建筑研究总院有限公司 Steel concrete supporting method
DE102013208413B4 (en) * 2013-05-07 2019-10-10 Badische Stahlwerke Gmbh Reinforcing steel, production method for reinforcing steel
CN105013984B (en) * 2014-04-24 2017-06-13 郑州大学 Gathering stock high tensile steel wire and preparation method thereof
CN104191177B (en) * 2014-08-25 2016-06-29 苏州第五建筑集团有限公司 A kind of hot pier straight thread reinforced bar and process units thereof and production technology
JP2016175092A (en) * 2015-03-19 2016-10-06 株式会社アキテック End screw processing method for reinforcing bar and end structure of reinforcing bar
CN104942006A (en) * 2015-06-25 2015-09-30 江苏永钢集团有限公司 Asymmetric ribbed shapes for threaded steel finished product grooves and production method thereof
CN105735566B (en) * 2016-04-01 2019-01-04 中国建筑第八工程局有限公司 The connection sleeve of finish rolling deformed bar
KR102435778B1 (en) * 2016-10-13 2022-08-23 아키라 후쿠다 Threaded rebar joint structure of deformed rebar and its manufacturing method
JP6829799B2 (en) * 2017-04-26 2021-02-17 株式会社小野工業所 Reinforcing bar
CN110202689B (en) * 2019-07-08 2020-06-23 湖北思泽新能源科技有限公司 Hydraulic pliers for connecting reinforcing steel bars
WO2023069008A1 (en) * 2021-10-18 2023-04-27 Angkasa Daehan Steel Pte. Ltd. Method for working a thread on a reinforcing bar for reinforcement of concrete

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2162915B (en) * 1984-08-09 1988-06-02 Allied Steel Wire Ltd Reinforcing bar joints
FR2639054B2 (en) 1988-02-03 1992-07-03 Techniport Sa IMPROVEMENTS RELATING TO THE MECHANICAL CONNECTION OF CONCRETE ROUND, PROCESS FOR PRODUCING SUCH CONNECTIONS AND CONCRETE ROUND OBTAINED BY IMPLEMENTING SAID PROCESS
GB2227802A (en) * 1989-01-26 1990-08-08 Square Grip Ltd Concrete reinforcement bar couplings and apparatus for enlarging bar ends
FR2653809B1 (en) * 1989-10-26 1995-05-12 Techniport Sa INSTALLATION FOR PRODUCING CONCRETE ROUND.
GB2238499A (en) * 1989-11-09 1991-06-05 Hy Ten Reinforcement Company L Forming threaded bars
FR2689156B1 (en) * 1992-03-30 1995-07-13 Techniport Sa PROCESS FOR PRODUCING A MECHANICAL CONNECTION OF CONCRETE ROUND, CONNECTION OBTAINED BY THE PROCESS, CONCRETE ROUND AUTHORIZING THE IMPLEMENTATION OF SAID PROCESS, AND CONCRETE ROUND PREPARATION INSTALLATION.
FI922525A0 (en) * 1992-06-01 1992-06-01 Tartuntamarkkinointi Oy FOERFARANDE FOER SKAERNING AV EN GAENGA I EN STAONG.
US5776001A (en) 1994-02-16 1998-07-07 Ccl Systems Limited Thread formation

Also Published As

Publication number Publication date
TW440482B (en) 2001-06-16
AU2257499A (en) 1999-10-14
EP0947642A2 (en) 1999-10-06
JPH11342448A (en) 1999-12-14
KR19990076461A (en) 1999-10-15
EP0947642A3 (en) 2000-01-12
CA2268878C (en) 2003-04-29
CN1239172A (en) 1999-12-22
KR100248963B1 (en) 2000-03-15
EP0947642B1 (en) 2006-05-31

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed
MKLC Lapsed (correction)

Effective date: 20131206

MKEX Expiry

Effective date: 20190415