ES483860A1 - 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
ES483860A1
ES483860A1 ES483860A ES483860A ES483860A1 ES 483860 A1 ES483860 A1 ES 483860A1 ES 483860 A ES483860 A ES 483860A ES 483860 A ES483860 A ES 483860A ES 483860 A1 ES483860 A1 ES 483860A1
Authority
ES
Spain
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.)
Expired
Application number
ES483860A
Other languages
Spanish (es)
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.)
SEAC CERAMIQUES
Original Assignee
SEAC CERAMIQUES
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 SEAC CERAMIQUES filed Critical SEAC CERAMIQUES
Publication of ES483860A1 publication Critical patent/ES483860A1/en
Expired 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.
ES483860A 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 Expired ES483860A1 (en)

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 (1)

Publication Number Publication Date
ES483860A1 true ES483860A1 (en) 1980-05-16

Family

ID=9211672

Family Applications (1)

Application Number Title Priority Date Filing Date
ES483860A Expired 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

Country Status (2)

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

Families Citing this family (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 Pipeline pit defect manufacturing device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU29980A1 (en) * 1949-03-08
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

Also Published As

Publication number Publication date
FR2432594B1 (en) 1983-01-21
FR2432594A1 (en) 1980-02-29

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