GB540714A - Improvements in or relating to reinforced concrete construction - Google Patents

Improvements in or relating to reinforced concrete construction

Info

Publication number
GB540714A
GB540714A GB356/41A GB35641A GB540714A GB 540714 A GB540714 A GB 540714A GB 356/41 A GB356/41 A GB 356/41A GB 35641 A GB35641 A GB 35641A GB 540714 A GB540714 A GB 540714A
Authority
GB
United Kingdom
Prior art keywords
wires
concrete
rods
bolts
screws
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
GB356/41A
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
Publication of GB540714A publication Critical patent/GB540714A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/08—Members specially adapted to be used in prestressed constructions
    • 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
    • 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
    • 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
    • B28B23/06—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 for the production of elongated articles

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Reinforcement Elements For Buildings (AREA)

Abstract

540,714. Reinforced concrete. SCHORER H. Jan. 10, 1941, No. 356. Convention date, Feb. 11, 1940. [Class 20 (iv)] In the production of a reinforced concrete structure in which such portions of the concrete which are subject to tensile and shearing stresses when under load are pre-compressed, units are employed each having a rod-like compression member 1 and wire tension members 3, 4 arranged around the member and placed in the mould before the concrete is poured. The tension members are looped round lugs 6 on nuts 5 through which, at one end, pass screwed bolts 7 bearing, with the interposition of balls 9, on the ends of the rods 1. The wires pass around spacers 2 and are wound in helices in opposite directions and, by tightening the bolts 7, are uniformly pre-stressed. The rods may be enclosed sheaths 10 of paraffined paper and may be withdrawn after the concrete has set and the bolts 7 released, the compressive force in the rods being transferred to the concrete. The tension wires are cut along the exterior face and the holes formed by the bolts filled with cement mortar. In Fig. 5, the compression member is formed by a number of rods 21 held together by ties 22, and the wires 23 are passed inside members 27 and over spacers 24. The ends of the wires are preliminarily held by screws 35 until the setting is corrected when cover plates 36 are placed over the wires and screws 38 tightened to hold the wires firmly between the cover plates and the body of the securing means. The screws 43 are then tightened and the wires stretched as before.
GB356/41A 1940-02-21 1941-01-10 Improvements in or relating to reinforced concrete construction Expired GB540714A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US320028A US2303394A (en) 1940-02-21 1940-02-21 Prestressing reinforced concrete

Publications (1)

Publication Number Publication Date
GB540714A true GB540714A (en) 1941-10-27

Family

ID=23244573

Family Applications (1)

Application Number Title Priority Date Filing Date
GB356/41A Expired GB540714A (en) 1940-02-21 1941-01-10 Improvements in or relating to reinforced concrete construction

Country Status (4)

Country Link
US (1) US2303394A (en)
CH (1) CH228596A (en)
FR (1) FR870671A (en)
GB (1) GB540714A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4223497A (en) * 1978-06-26 1980-09-23 Ccl Systems Limited Coupling assembly
FR2462528A1 (en) * 1979-07-27 1981-02-13 Campenon Bernard Pretensioned prestressing of concrete members - uses axial compression on temporarily embedded bar to effect tensioning of stressing wires
EP0033187A2 (en) * 1980-01-25 1981-08-05 Byron A. Romig, Jr. Internally tensioned structural member

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2637895A (en) * 1942-03-21 1953-05-12 Emile Jules Lucien Blaton Method of tensioning and anchoring wire bundles for prestressed concrete structural elements
US2435998A (en) * 1943-03-31 1948-02-17 Porete Mfg Company Composite prestressed concrete beam and slab structure
US2579183A (en) * 1943-06-29 1951-12-18 Freysainet Eugene Method for tensioning reinforcements
NL61228C (en) * 1943-09-30
US2614801A (en) * 1950-07-26 1952-10-21 Aircraft Hardware Mfg Co Inc Wire holding and prestressing device
US2677956A (en) * 1950-11-13 1954-05-11 Schorer Corp Prestressing and reinforcing apparatus for concrete structures
US2681562A (en) * 1951-06-07 1954-06-22 Clarke Lawrence Concrete wall
US3022713A (en) * 1954-11-26 1962-02-27 Bengt F Friberg Prestressed concrete structures
US3041702A (en) * 1957-10-15 1962-07-03 United States Steel Corp Method of making a prestressed reinforced concrete structure
US2963273A (en) * 1957-11-21 1960-12-06 Abhot A Lane Rod assembly for prestressed concrete
US3084481A (en) * 1958-12-19 1963-04-09 Silberkuhl Wilhelm Johannes Prestressed concrete bodies
US3088187A (en) * 1959-06-03 1963-05-07 Justice Company Process of making elongated stressed concrete structures
US3167882A (en) * 1960-12-14 1965-02-02 Fmc Corp Means for and method of prestressing concrete
US3162709A (en) * 1961-07-31 1964-12-22 American Form & Equipment Co Method of forming prestressed tubular structures
US3855742A (en) * 1970-07-23 1974-12-24 Texas Dynamatics Apparatus for prestressing a structural member
US3948010A (en) * 1971-12-17 1976-04-06 Sonneville Roger P Reinforcing device for an element of prestressed concrete
US3950905A (en) * 1972-04-26 1976-04-20 Jeter John D Method for prestressing a structural member
US4398377A (en) * 1980-01-25 1983-08-16 Romig Jr Byron A Structural member with equalized internal tension
US4704754A (en) * 1982-04-28 1987-11-10 Bonasso S G Tension arch structure
ITMI20022119A1 (en) * 2002-10-04 2004-04-05 Benito Zambelli DEVICE FOR THE CONNECTION OF A BEAM TO PILLARS,
WO2013115823A1 (en) * 2012-02-02 2013-08-08 Empire Technology Development Llc Modular concrete reinforcement
DE102013215136A1 (en) * 2013-08-01 2015-02-05 Dywidag-Systems International Gmbh Corrosion-protected tension member and plastically deformable disc made of anti-corrosion material for such a tension member
WO2024025790A1 (en) * 2022-07-26 2024-02-01 Fsc Technologies Llc Assembly

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4223497A (en) * 1978-06-26 1980-09-23 Ccl Systems Limited Coupling assembly
FR2462528A1 (en) * 1979-07-27 1981-02-13 Campenon Bernard Pretensioned prestressing of concrete members - uses axial compression on temporarily embedded bar to effect tensioning of stressing wires
EP0033187A2 (en) * 1980-01-25 1981-08-05 Byron A. Romig, Jr. Internally tensioned structural member
EP0033187A3 (en) * 1980-01-25 1981-09-23 Byron A. Romig, Jr. Internally tensioned structural member

Also Published As

Publication number Publication date
US2303394A (en) 1942-12-01
CH228596A (en) 1943-09-15
FR870671A (en) 1942-03-20

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