FR2432594A1 - Pretensioning of wires for factory made prestressed concrete beams - uses jacking slide in pit to treat all wires of several lines simultaneously - Google Patents

Pretensioning of wires for factory made prestressed concrete beams - uses jacking slide in pit to treat all wires of several lines simultaneously

Info

Publication number
FR2432594A1
FR2432594A1 FR7823305A FR7823305A FR2432594A1 FR 2432594 A1 FR2432594 A1 FR 2432594A1 FR 7823305 A FR7823305 A FR 7823305A FR 7823305 A FR7823305 A FR 7823305A FR 2432594 A1 FR2432594 A1 FR 2432594A1
Authority
FR
France
Prior art keywords
wires
slide
pit
bed
several lines
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
FR7823305A
Other languages
French (fr)
Other versions
FR2432594B1 (en
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.)
APPLIC CERAMIQUES ET
Original Assignee
APPLIC CERAMIQUES ET
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 APPLIC CERAMIQUES ET filed Critical APPLIC CERAMIQUES ET
Priority to FR7823305A priority Critical patent/FR2432594A1/en
Priority to ES483860A priority patent/ES483860A1/en
Publication of FR2432594A1 publication Critical patent/FR2432594A1/en
Application granted granted Critical
Publication of FR2432594B1 publication Critical patent/FR2432594B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
    • B28B23/04—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed
    • B28B23/043—Wire anchoring or tensioning means for the reinforcements

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)

Abstract

The slide-mounted jack is used to stress wires or cables for precast prestressed beams. It permits the stressing and distressing of all wires simultaneously, and is sited in a pit at one end of the bed across several lines. A slide is fabricated from a welded stepped compound top plate on a grid of structural steel sections. It is set on rails in a pit which is cast in a concrete thrust block. The slide is capable of movement parallel to the cables, sitting nominally flush with the floor of the bed, locating a demountable comb, and being displaced b a single central jack bearing on the thrust block. The front edge of the slide is separated from the bed floor by a rectangular section vertically retractable wedge on screw jacks, and the comb locates wire ends which are anchored in the conventional manner.
FR7823305A 1978-08-04 1978-08-04 Pretensioning of wires for factory made prestressed concrete beams - uses jacking slide in pit to treat all wires of several lines simultaneously Granted FR2432594A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7823305A FR2432594A1 (en) 1978-08-04 1978-08-04 Pretensioning of wires for factory made prestressed concrete beams - uses jacking slide in pit to treat all wires of several lines simultaneously
ES483860A ES483860A1 (en) 1978-08-04 1979-08-04 Pretensioning of wires for factory made prestressed concrete beams - uses jacking slide in pit to treat all wires of several lines simultaneously

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7823305A FR2432594A1 (en) 1978-08-04 1978-08-04 Pretensioning of wires for factory made prestressed concrete beams - uses jacking slide in pit to treat all wires of several lines simultaneously

Publications (2)

Publication Number Publication Date
FR2432594A1 true FR2432594A1 (en) 1980-02-29
FR2432594B1 FR2432594B1 (en) 1983-01-21

Family

ID=9211672

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7823305A Granted FR2432594A1 (en) 1978-08-04 1978-08-04 Pretensioning of wires for factory made prestressed concrete beams - uses jacking slide in pit to treat all wires of several lines simultaneously

Country Status (2)

Country Link
ES (1) ES483860A1 (en)
FR (1) FR2432594A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104344983A (en) * 2014-10-30 2015-02-11 中国石油天然气股份有限公司 Pit defect preparation device for pipeline

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB674780A (en) * 1949-03-08 1952-07-02 Marcel Francois Delcourt Improvements in a method and a device for manufacturing pre-stressed concrete girders
FR2226855A5 (en) * 1973-04-18 1974-11-15 Saret Tension-head for tightening concrete reinforcements - consists of a mobile trimmer and double acting hydraulic jacks

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB674780A (en) * 1949-03-08 1952-07-02 Marcel Francois Delcourt Improvements in a method and a device for manufacturing pre-stressed concrete girders
FR2226855A5 (en) * 1973-04-18 1974-11-15 Saret Tension-head for tightening concrete reinforcements - consists of a mobile trimmer and double acting hydraulic jacks

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104344983A (en) * 2014-10-30 2015-02-11 中国石油天然气股份有限公司 Pit defect preparation device for pipeline

Also Published As

Publication number Publication date
ES483860A1 (en) 1980-05-16
FR2432594B1 (en) 1983-01-21

Similar Documents

Publication Publication Date Title
US3831329A (en) Building construction system
GB1500189A (en) Method of producing prestressed beams of steel or steel and concrete
GB1073831A (en) Method of and apparatus for erecting multi-span bridges and the like
ES479947A1 (en) Concrete floor slab constructed from basic prefabricated slabs
GB581815A (en) Improvements in the manufacture of prestressed concrete sleepers and like beams
US3397858A (en) Concrete slab form panel-supporting bracket
FR2432594A1 (en) Pretensioning of wires for factory made prestressed concrete beams - uses jacking slide in pit to treat all wires of several lines simultaneously
ES449857A1 (en) Concrete unit prestressed using tendons stressed before concreting, more particularly a railway sleeper
FR2317442A1 (en) NATURAL STONE STEP FOR Cantilever staircases
US4108583A (en) Vertically moving slip forms
USRE29249E (en) Precast concrete building construction
FR2318289A1 (en) Travelling formwork for concrete walls - has vertical stanchions supporting travelling platform with suspended shuttering and hydraulic jacks
RU2131960C1 (en) Double-level single-vault transfer station unit of deep subway
GB1237468A (en) Method of advancing bridging structures
ATE99375T1 (en) PULLER RAIL.
FR2375971A1 (en) Cable anchorage traverse for prestressed concrete beam prodn. bed - has inner edge key-hole slots receiving wedged cable ends
US3050283A (en) Apparatus for depressing cables
GB1402259A (en) Building method and structure using prefabricated elements
GB912428A (en) Improvements in staircases
IT1027058B (en) Cast-slab multi-storey building erection - with temporary paired columns containing permanent base slabs covered by separating layer
FR2409350A1 (en) Cantilever retaining wall of precast reinforced concrete units - has inclined beams extending from base blocks and including slots to seat planks on edge
GB1195712A (en) Improvements in or relating to shuttering for concrete decks
US3174204A (en) Anchor system for an invert form
FR2242533A1 (en) Precast post-tensioned concrete floor units - are supported by beams and have T-shaped cross sections
KR910000869B1 (en) Method for making bridge slab by moving the frame pannel

Legal Events

Date Code Title Description
ST Notification of lapse