GB1504961A - Prestressed concrete members - Google Patents

Prestressed concrete members

Info

Publication number
GB1504961A
GB1504961A GB3676/75A GB367675A GB1504961A GB 1504961 A GB1504961 A GB 1504961A GB 3676/75 A GB3676/75 A GB 3676/75A GB 367675 A GB367675 A GB 367675A GB 1504961 A GB1504961 A GB 1504961A
Authority
GB
United Kingdom
Prior art keywords
concrete
shell
infilling
troughs
shells
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
GB3676/75A
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.)
CONSPAN INVEST
Original Assignee
CONSPAN INVEST
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 CONSPAN INVEST filed Critical CONSPAN INVEST
Publication of GB1504961A publication Critical patent/GB1504961A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/17—Floor structures partly formed in situ
    • E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
    • E04B5/26—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated with filling members between the beams
    • E04B5/261—Monolithic filling members
    • E04B5/263—Monolithic filling members with a flat lower surface
    • 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
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
    • E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/17—Floor structures partly formed in situ
    • E04B5/18—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly cast between filling members
    • E04B5/19—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly cast between filling members the filling members acting as self-supporting permanent forms
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/17—Floor structures partly formed in situ
    • E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
    • E04B5/26—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated with filling members between the beams
    • E04B5/266—Filling members covering the undersurface of the beams
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/20—Joists; 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
    • E04C3/26—Joists; 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 prestressed
    • 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
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2101/00—Material constitution of bridges
    • E01D2101/20—Concrete, stone or stone-like material
    • E01D2101/24—Concrete
    • E01D2101/26—Concrete reinforced
    • E01D2101/28—Concrete reinforced prestressed

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)

Abstract

1504961 Method of prestressing concrete CONSPAN INVESTMENT CO Ltd 6 Feb 1975 [6 Feb 1974] 3676/75 Heading E1W A method of forming a pre-stressed concrete member comprises:- forming a concrete shell 1; curing the shell for a preselected time; drying out an inner surface 2 of the shell so as to arrest hydration; locating and stressing reinforcements 4 within the shell 1; dampening the inner surface 2 of the shell; infilling the shell with concrete 3 so as to cover the stressed reinforcement: and allowing the concrete 3 and shell 1 to cure concurrently. The shell 1 may comprise a series of troughs or be of U or W shaped cross section. A concrete setting retarding agent may be used on the inner surfaces of the troughs. The surface of the infilling concrete 3 may be roughened and a further layer of concrete 6 may be poured in situ. Stirrup shaped reinforcement bars 5 extend from the infilling concrete 6 to the in situ layer 6. The infilling concrete 3 may be additionally reinforced with metal mesh or fibrous material. A plurality of shells 1 may be mounted one above the other in a mould, the infilling concrete joining the shells to form a laminated concrete member Fig. 6 (not shown).
GB3676/75A 1974-02-06 1975-02-06 Prestressed concrete members Expired GB1504961A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AUPB648074 1974-02-06

Publications (1)

Publication Number Publication Date
GB1504961A true GB1504961A (en) 1978-03-22

Family

ID=3765844

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3676/75A Expired GB1504961A (en) 1974-02-06 1975-02-06 Prestressed concrete members

Country Status (2)

Country Link
CA (1) CA1037690A (en)
GB (1) GB1504961A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101979802A (en) * 2010-11-05 2011-02-23 中国建筑第八工程局有限公司 Extra-large area concrete construction method
ITBO20100014A1 (en) * 2010-01-14 2011-07-15 Schnell House Italia S R L REINFORCED ARMOR PANEL
CN109778664A (en) * 2019-03-20 2019-05-21 中铁二院工程集团有限责任公司 A kind of lightweight prestressed concrete beam bridge structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20100014A1 (en) * 2010-01-14 2011-07-15 Schnell House Italia S R L REINFORCED ARMOR PANEL
CN101979802A (en) * 2010-11-05 2011-02-23 中国建筑第八工程局有限公司 Extra-large area concrete construction method
CN109778664A (en) * 2019-03-20 2019-05-21 中铁二院工程集团有限责任公司 A kind of lightweight prestressed concrete beam bridge structure

Also Published As

Publication number Publication date
CA1037690A (en) 1978-09-05

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee