GB685131A - Improvements in or relating to concrete floors, roofs and the like and to prestressed reinforced beams therefor - Google Patents

Improvements in or relating to concrete floors, roofs and the like and to prestressed reinforced beams therefor

Info

Publication number
GB685131A
GB685131A GB3289749A GB3289749A GB685131A GB 685131 A GB685131 A GB 685131A GB 3289749 A GB3289749 A GB 3289749A GB 3289749 A GB3289749 A GB 3289749A GB 685131 A GB685131 A GB 685131A
Authority
GB
United Kingdom
Prior art keywords
beams
concrete
situ
reinforced
cast
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
GB3289749A
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.)
WALLACE ALFRED EVANS
Original Assignee
WALLACE ALFRED EVANS
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 WALLACE ALFRED EVANS filed Critical WALLACE ALFRED EVANS
Priority to GB3289749A priority Critical patent/GB685131A/en
Publication of GB685131A publication Critical patent/GB685131A/en
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00Structural elongated elements designed for load-supporting
    • E04C3/02Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/20Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members
    • E04C3/22Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members built-up by elements jointed in line
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/02Arrangements 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
    • B28B23/04Arrangements 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
    • B28B23/046Post treatment to obtain pre-stressed articles
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/02Load-carrying floor structures formed substantially of prefabricated units
    • E04B5/04Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement
    • E04B5/06Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement with beams placed against one another optionally with pointing-mortar
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/17Floor structures partly formed in situ
    • E04B5/23Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated

Abstract

685,131. Beams; floors; reinforced concrete. EVANS, W. A. March 27, 1951 [Dec. 23, 1949], No. 32897/49. Class 20(iv) A composite beam for a concrete roof, floor or the like is formed from reinforced concrete beam elements placed end-to-end and held together under compression by prestressing members carried in open guide ways in the outer side surfaces of the beam elements. The figures show a footbridge 1 spanning the space between walls 2 and 3 and built of composite beams laid side by side..Each beam consists of a pair of reinforced beam elements 4 or 6 which are placed in line with their aljoining ends on a temporary support 11. The inner beams 4 are hollow except at the ends and have grooves 9 formed in each side face. The side beams 6 are solid throughout and have a groove 9 in the inner side face only. A steel cable 10 is passed through each duct formed by the grooves 9 and a concrete filling member 5 cast in situ between the beam ends. When the member 5 has hardened the cables are strained against the end faces of the beam whilst transverse prestressing rods 13 are threaded through holes provided near the beam ends and tensioned to hold the beams together. Grouting is filled into the ducts and anchor blocks 14 and 15 are cast in situ against the ends of beams to secure the cable ends. The structure is completed by a concrete layer 7 which is spread over the beams 4.
GB3289749A 1949-12-23 1949-12-23 Improvements in or relating to concrete floors, roofs and the like and to prestressed reinforced beams therefor Expired GB685131A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3289749A GB685131A (en) 1949-12-23 1949-12-23 Improvements in or relating to concrete floors, roofs and the like and to prestressed reinforced beams therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3289749A GB685131A (en) 1949-12-23 1949-12-23 Improvements in or relating to concrete floors, roofs and the like and to prestressed reinforced beams therefor

Publications (1)

Publication Number Publication Date
GB685131A true GB685131A (en) 1952-12-31

Family

ID=10345670

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3289749A Expired GB685131A (en) 1949-12-23 1949-12-23 Improvements in or relating to concrete floors, roofs and the like and to prestressed reinforced beams therefor

Country Status (1)

Country Link
GB (1) GB685131A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2971295A (en) * 1955-03-21 1961-02-14 Phillips Petroleum Co Prestressed concrete units and structures
US3283457A (en) * 1964-01-22 1966-11-08 Baltimore Concrete Plank Corp Prestressed concrete plank construction
CN102720303A (en) * 2012-06-15 2012-10-10 吴方伯 Concrete composite beam
ES2590536R1 (en) * 2015-05-01 2017-03-09 Elastic Potential, S.L. Construction system and assembly procedure for this

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2971295A (en) * 1955-03-21 1961-02-14 Phillips Petroleum Co Prestressed concrete units and structures
US3283457A (en) * 1964-01-22 1966-11-08 Baltimore Concrete Plank Corp Prestressed concrete plank construction
CN102720303A (en) * 2012-06-15 2012-10-10 吴方伯 Concrete composite beam
CN102720303B (en) * 2012-06-15 2014-12-10 吴方伯 Concrete composite beam
ES2590536R1 (en) * 2015-05-01 2017-03-09 Elastic Potential, S.L. Construction system and assembly procedure for this

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