GB656240A - Pre-stressed reinforced concrete - Google Patents

Pre-stressed reinforced concrete

Info

Publication number
GB656240A
GB656240A GB2630647A GB2630647A GB656240A GB 656240 A GB656240 A GB 656240A GB 2630647 A GB2630647 A GB 2630647A GB 2630647 A GB2630647 A GB 2630647A GB 656240 A GB656240 A GB 656240A
Authority
GB
United Kingdom
Prior art keywords
gaps
reinforced concrete
wires
nuts
sleeve
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
GB2630647A
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
Application filed by Individual filed Critical Individual
Priority to GB2630647A priority Critical patent/GB656240A/en
Publication of GB656240A publication Critical patent/GB656240A/en
Expired legal-status Critical Current

Links

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
    • 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
    • B28B23/046—Post treatment to obtain pre-stressed articles

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Bridges Or Land Bridges (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Abstract

656,240. Reinforced concrete beams. GLOVER, C. W. Sept. 29, 1947, No. 26306. [Class 20(iv)] A pre-stressed pre-cast reinforced concrete beam is made by casting a reinforced concrete beam 1, 7, 8, with high tensile reinforcement 4 anchored therein and with a gap 9, 10 near each end thereof, widening the gaps until the requisite tension is induced in the wires, and filling the gaps with concrete while the tension in the reinforcement is maintained. The gaps are conveniently widened by means of nuts. and bolts 11, 12 bearing on steel plates 13, 14 inserted in the gaps, the nuts being partly screwed off to widen the gap sufficiently for the insertion of longer stronger bolts, and so on until permanent steel spacers can be inserted. The wires are conveniently grouped in one or more straight strands held together with coarse string and surrounded by a sleeve 15 of bituminous or waxed paper or the like which prevents the concrete from bonding with the wire. The sleeve is helically wound with coarse string. The wires are preferably cut. in equal lengths, twice that of the beam looped through the plates 13, 14 at one end, passing over a short tube 16, and clamped or welded together after passing through a companion plate at the other end. Specification 541,160 is referred to.
GB2630647A 1947-09-29 1947-09-29 Pre-stressed reinforced concrete Expired GB656240A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2630647A GB656240A (en) 1947-09-29 1947-09-29 Pre-stressed reinforced concrete

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2630647A GB656240A (en) 1947-09-29 1947-09-29 Pre-stressed reinforced concrete

Publications (1)

Publication Number Publication Date
GB656240A true GB656240A (en) 1951-08-15

Family

ID=10241563

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2630647A Expired GB656240A (en) 1947-09-29 1947-09-29 Pre-stressed reinforced concrete

Country Status (1)

Country Link
GB (1) GB656240A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1021777B (en) * 1953-02-09 1957-12-27 Franz Bock Process for the production of prestressed concrete components
US2857755A (en) * 1953-07-22 1958-10-28 Werth Adam Method and means of prestressing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1021777B (en) * 1953-02-09 1957-12-27 Franz Bock Process for the production of prestressed concrete components
US2857755A (en) * 1953-07-22 1958-10-28 Werth Adam Method and means of prestressing

Similar Documents

Publication Publication Date Title
GB1246302A (en) Anchorage for suspension bridge main cable and the like
GB775744A (en) A new or improved means for securing wires or rods in the stressed condition
GB642589A (en) A compound-reinforcement for concrete structures
GB656240A (en) Pre-stressed reinforced concrete
ES449857A1 (en) Concrete unit prestressed using tendons stressed before concreting, more particularly a railway sleeper
GB694596A (en) Method and apparatus for post-tensioning and anchoring reinforcements of concrete
GB783624A (en) Improvements relating to concrete piles
GB739480A (en) Improvements in and relating to the production of prestressed concrete
US2318396A (en) Crossarm reinforcement
GB1216724A (en) Prestressed concrete structures
US2132269A (en) Cable anchor
GB707144A (en) Improvements in or relating to the construction of pre-stressed concrete
GB1117408A (en) Anchor device for tension members in prestressed concrete and the like
GB721517A (en) Improvements in or relating to methods and devices for protecting reinforcing cablestensioned after hardening the concrete from corrosion
CN207891747U (en) A kind of tensioning monitoring device for transverse tensioning method prefabricated small box girder pre-stress construction
GB693287A (en) Improvements in or relating to reinforced concrete elements
GB633245A (en) Improvements relating to pre-stressed concrete
GB698424A (en) Improvements in or relating to reinforced concrete pylons
US2690667A (en) Stressed concrete beam
GB569537A (en) Improvements relating to pre-stressed concrete
GB676533A (en) Improvements in or relating to the tensioning of reinforcing elements for prestressed concrete
GB712674A (en) Improvements in prestressed concrete piles
GB1304056A (en)
GB794561A (en) Improvements in or relating to prestressed concrete
SU88807A1 (en) Anchor device of reinforcing wire bundles of prestressed concrete elements