GB645449A - Improvements in and relating to prestressing reinforcement for moulding concrete beams and the like - Google Patents

Improvements in and relating to prestressing reinforcement for moulding concrete beams and the like

Info

Publication number
GB645449A
GB645449A GB945448A GB945448A GB645449A GB 645449 A GB645449 A GB 645449A GB 945448 A GB945448 A GB 945448A GB 945448 A GB945448 A GB 945448A GB 645449 A GB645449 A GB 645449A
Authority
GB
United Kingdom
Prior art keywords
concrete
strut
reinforced
reinforcement
moulded
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
GB945448A
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.)
CONCRETE DEV Co Ltd
Original Assignee
CONCRETE DEV Co Ltd
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 CONCRETE DEV Co Ltd filed Critical CONCRETE DEV Co Ltd
Priority to GB945448A priority Critical patent/GB645449A/en
Publication of GB645449A publication Critical patent/GB645449A/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

645,449. Reinforced concrete. HOLE, E. R., and CONCRETE DEVELOPMENT CO., Ltd. April 5, 1948, No. 9454. [Class 20(iv)] Concrete reinforcement is pre-stressed without the use of ground anchorages by incorporating it as part of a closed balanced lever system including variable tension means on one side imposing stresses which are absorbed by the reinforcement. Reinforcing wires 3 for a concrete beam &c. cast in a mould 1 are pre-stressed by means of levers 9 fulcrummed on end brackets 6 of a strut 4 extending longitudinally of the wires and tensioned by rods 12 and a hydraulic jack 13. The strut may be extensible for use with varying lengths of beam. For utilizing a part of the structure to be moulded itself as the strut, a beam which may not be reinforced is moulded of the appropriate section for that portion intended mainly to operate under compression and an opensided mould placed against it for the reinforced portion. Fulcrum abutments for the tensioning levers may be removably fitted to the precast portion or directly provided by the ends of the concrete itself.
GB945448A 1948-04-05 1948-04-05 Improvements in and relating to prestressing reinforcement for moulding concrete beams and the like Expired GB645449A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB945448A GB645449A (en) 1948-04-05 1948-04-05 Improvements in and relating to prestressing reinforcement for moulding concrete beams and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB945448A GB645449A (en) 1948-04-05 1948-04-05 Improvements in and relating to prestressing reinforcement for moulding concrete beams and the like

Publications (1)

Publication Number Publication Date
GB645449A true GB645449A (en) 1950-11-01

Family

ID=9872265

Family Applications (1)

Application Number Title Priority Date Filing Date
GB945448A Expired GB645449A (en) 1948-04-05 1948-04-05 Improvements in and relating to prestressing reinforcement for moulding concrete beams and the like

Country Status (1)

Country Link
GB (1) GB645449A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0439399A1 (en) * 1990-01-22 1991-07-31 Rector S.A. Modular unit for making prestressed concrete products
WO2000029182A1 (en) * 1998-11-17 2000-05-25 Grimbergen Holding B.V. Device for the manufacturing of moulded products of reinforced concrete
WO2011008783A1 (en) * 2009-07-14 2011-01-20 21St Century Structures, Llc Movable pallet and method of use
CN103273568A (en) * 2013-06-08 2013-09-04 长沙远大住宅工业有限公司 Production method and device of pre-tensioning prestress prefabricated part of moving bench formwork

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0439399A1 (en) * 1990-01-22 1991-07-31 Rector S.A. Modular unit for making prestressed concrete products
WO2000029182A1 (en) * 1998-11-17 2000-05-25 Grimbergen Holding B.V. Device for the manufacturing of moulded products of reinforced concrete
WO2011008783A1 (en) * 2009-07-14 2011-01-20 21St Century Structures, Llc Movable pallet and method of use
CN103273568A (en) * 2013-06-08 2013-09-04 长沙远大住宅工业有限公司 Production method and device of pre-tensioning prestress prefabricated part of moving bench formwork
CN103273568B (en) * 2013-06-08 2016-03-16 长沙远大住宅工业集团有限公司 Traveling table mould pretensioned prestressing prefabricated components production method and equipment

Similar Documents

Publication Publication Date Title
CN109989506A (en) A kind of reinforced concrete shear wall and its construction method
GB645449A (en) Improvements in and relating to prestressing reinforcement for moulding concrete beams and the like
CN110029777A (en) A kind of prestressed FRP rebar fiber high-strength light aggregate concrete beam and preparation method thereof
ES449857A1 (en) Concrete unit prestressed using tendons stressed before concreting, more particularly a railway sleeper
CN218083367U (en) Municipal administration road bridge pretension method prestressing force is put and is opened construction equipment
GB1256359A (en) Improvements in prestressed concrete structures
GB602153A (en) Improvements in and relating to reinforced concrete constructions
GB783624A (en) Improvements relating to concrete piles
KR100250937B1 (en) The manufacturing method of a simple beam type preflex composite beam by temporary hinge
GB676201A (en) Improvements relating to constructional piles
GB464361A (en) Improvements relating to reinforced concrete beams, girders, bridges and the like
GB664458A (en) Improvements relating to reinforced structural members
GB707144A (en) Improvements in or relating to the construction of pre-stressed concrete
CN219604156U (en) Novel temporary stretching pedestal template for section beam
GB641535A (en) Improvements in and relating to reinforced concrete roofing units
CN2272034Y (en) Concrete QL hardstand shuttering fastener
GB691323A (en) Improvements in or relating to the manufacture of poles, beams and the like of concrete and similar material
GB615433A (en) Structure of reinforced concrete including concrete bars with tensioned steel reinforcement
GB613901A (en) Improvements in and relating to structural members of reinforced concrete
GB639399A (en) Improvement in the design and manufacture of reinforced concrete frameworks by pre-stressing
GB707447A (en) Improvements in or relating to reinforced concrete structures
GB628488A (en) Improvements in or relating to reinforced concrete structures
GB651462A (en) Reinforced concrete construction
GB672725A (en) Improvements relating to the manufacture of pre-stressed concrete
GB979836A (en) Improvements in or relating to prestressed composite steel and reinforced concrete structures