CS229670B2 - Prestressing jack for cable tightennig in prestressed concrete constructions - Google Patents

Prestressing jack for cable tightennig in prestressed concrete constructions Download PDF

Info

Publication number
CS229670B2
CS229670B2 CS814388A CS438881A CS229670B2 CS 229670 B2 CS229670 B2 CS 229670B2 CS 814388 A CS814388 A CS 814388A CS 438881 A CS438881 A CS 438881A CS 229670 B2 CS229670 B2 CS 229670B2
Authority
CS
Czechoslovakia
Prior art keywords
strands
tensioning
piston
guide tubes
wires
Prior art date
Application number
CS814388A
Other languages
Czech (cs)
English (en)
Inventor
Romualdo Macchi
Original Assignee
Romualdo Macchi
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
Application filed by Romualdo Macchi filed Critical Romualdo Macchi
Publication of CS229670B2 publication Critical patent/CS229670B2/cs

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/12—Mounting of reinforcing inserts; Prestressing
    • E04G21/121—Construction of stressing jacks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49863—Assembling or joining with prestressing of part
    • Y10T29/49874—Prestressing rod, filament or strand
CS814388A 1980-06-12 1981-06-11 Prestressing jack for cable tightennig in prestressed concrete constructions CS229670B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT09464/80A IT1133577B (it) 1980-06-12 1980-06-12 Martinetto per il tensionamento dei cavi formati da trefoli o da tondini inguainati in strutture di cemento armato precompresso

Publications (1)

Publication Number Publication Date
CS229670B2 true CS229670B2 (en) 1984-06-18

Family

ID=11130523

Family Applications (1)

Application Number Title Priority Date Filing Date
CS814388A CS229670B2 (en) 1980-06-12 1981-06-11 Prestressing jack for cable tightennig in prestressed concrete constructions

Country Status (11)

Country Link
US (1) US4405114A (it)
AR (1) AR226361A1 (it)
AU (1) AU545228B2 (it)
BR (1) BR8103728A (it)
CA (1) CA1162073A (it)
CS (1) CS229670B2 (it)
DE (1) DE3121239A1 (it)
ES (1) ES8203449A1 (it)
FR (1) FR2484509A1 (it)
GB (1) GB2077873B (it)
IT (1) IT1133577B (it)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111188282A (zh) * 2020-03-01 2020-05-22 河南交院工程技术有限公司 一种钢绞线预应力张拉设备

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2518302A1 (fr) * 1981-12-14 1983-06-17 Commissariat Energie Atomique Procede de fabrication d'un assemblage combustible de reacteur nucleaire du type a eau legere et outillage pour la mise en oeuvre du procede
GB2140521B (en) * 1983-05-26 1986-10-01 Tinsley Wire Tensioning means for fencing
US4573662A (en) * 1984-04-03 1986-03-04 Stronghold International Ag Hydraulic jack for stressing elongate elements
GB2160278A (en) * 1984-06-12 1985-12-18 Vickers Plc Adjusting axial length of a marine platform tether line
FR2579252B1 (fr) * 1985-03-22 1987-05-15 Morin Ind Beton Dispositif pour retenir et manoeuvrer des clavettes engagees sur des cables a mettre en tension controlee et permettre leur immobilisation dans une tete d'ancrage et procede de mise en tension controlee de cables utilisant un tel dispositif
FR2584150B1 (fr) * 1985-06-28 1988-04-08 Inst Francais Du Petrole Systeme d'accrochage et de tensionnement a distance d'un element allonge
US4805877A (en) * 1987-09-28 1989-02-21 Charles Hoekstra Tendon stressing jack and method
NO900391L (no) * 1989-02-06 1990-08-07 Weidmann H Ag Fremgangsmaate, forankringselement og spennanordning til oppspenning av en stang.
GB2261482B (en) * 1991-11-12 1995-02-15 Pilgrim Eng Dev Rod tensioning
ES2084538B1 (es) * 1992-10-14 1998-01-01 Mekano 4 S A Gato hidraulico para tesar tendones de hormigon pretensado.
KR100410614B1 (ko) * 2000-11-21 2003-12-18 유성권 스테인레스 스틸 와이어 메쉬용 견인장치
KR20020045899A (ko) * 2000-12-11 2002-06-20 창 훈 이 해체가능한 가설지반 앵커체 및 인장재 해체공법
KR100434685B1 (ko) * 2001-05-25 2004-06-07 이창남 유압쐐기압입기
US7147210B2 (en) * 2004-02-02 2006-12-12 Actuant Corporation Cable tensioning system and method of operation
KR100912768B1 (ko) * 2009-04-28 2009-08-18 주식회사 삼우기초기술 와이어 인장기
EP2365158A1 (en) * 2010-03-12 2011-09-14 Siemens Aktiengesellschaft Apparatus for slipform casting
CN102730595A (zh) * 2011-04-12 2012-10-17 杨予杰 一种扁状千斤顶
CN102912988B (zh) * 2012-11-15 2015-06-10 湖南联智桥隧技术有限公司 一种张拉系统
US9677275B2 (en) 2012-12-18 2017-06-13 Wobben Properties Gmbh Anchor, tensioning device, wind energy plant and method for tensioning tensile cords on an anchor
CN103741672B (zh) * 2014-01-24 2016-01-13 俞向阳 一种具有钢绞线的先张法离心混凝土桩及制造方法
CN106315451A (zh) * 2016-10-18 2017-01-11 柳州黔桥工程材料有限公司 钢绞线群锚整体式自动同步控制系统
DE102017203645B4 (de) 2017-03-07 2020-07-02 KB Vorspann-Technik GmbH System zum Vorspannen eines Turmbauwerks
CN113512950B (zh) * 2021-05-13 2023-03-14 开封强力集团锚固技术股份有限公司 一种用于调节钢绞线张紧度的液压夹持装置及其使用方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1093227A (it) * 1955-05-02
US3090598A (en) * 1960-02-09 1963-05-21 Max Paul & Sohne Maschinenfabr Hydraulic jack for the prestressing of concrete reinforcements
US3176961A (en) * 1962-03-05 1965-04-06 John P Glass Hydraulic jack apparatus
CH444441A (de) * 1965-09-16 1967-09-30 Losinger Ag Einrichtung zum Spannen und Verankern von mehreren, zusammen ein Spannkabel bildenden Spanngliedern
GB1125176A (en) * 1966-03-31 1968-08-28 P S C Equipment Ltd A new or improved system for securing wires in a stressed condition
US3399865A (en) * 1966-06-27 1968-09-03 William F. Kelly Jacking apparatus for posttensioning concrete
FR1556335A (it) * 1967-12-26 1969-02-07
US3692277A (en) * 1971-03-03 1972-09-19 Inst Cercetari In Constructii Device for stressing tensionable armatures
SE395496B (sv) * 1975-02-04 1977-08-15 Ludvigson Birger Forfaringssett och anordning vid uppspenning av en armeringsstreng i en konstruktion av spennbetong
US4106752A (en) * 1976-05-04 1978-08-15 Buildinter Ag Jack for stressing concrete re-inforcement elements
US4279068A (en) * 1979-12-04 1981-07-21 E & E Seegmiller Limited Portable hydraulic gear pulling device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111188282A (zh) * 2020-03-01 2020-05-22 河南交院工程技术有限公司 一种钢绞线预应力张拉设备

Also Published As

Publication number Publication date
AU545228B2 (en) 1985-07-04
IT8009464A0 (it) 1980-06-12
CA1162073A (en) 1984-02-14
GB2077873B (en) 1984-05-16
FR2484509B1 (it) 1985-02-15
AU7164281A (en) 1981-12-17
FR2484509A1 (fr) 1981-12-18
US4405114A (en) 1983-09-20
IT1133577B (it) 1986-07-09
AR226361A1 (es) 1982-06-30
DE3121239A1 (de) 1982-05-27
ES502973A0 (es) 1982-04-16
BR8103728A (pt) 1982-03-02
GB2077873A (en) 1981-12-23
ES8203449A1 (es) 1982-04-16

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