EP0484345A1 - Ameliorations relatives a des poutres composites. - Google Patents

Ameliorations relatives a des poutres composites.

Info

Publication number
EP0484345A1
EP0484345A1 EP90909826A EP90909826A EP0484345A1 EP 0484345 A1 EP0484345 A1 EP 0484345A1 EP 90909826 A EP90909826 A EP 90909826A EP 90909826 A EP90909826 A EP 90909826A EP 0484345 A1 EP0484345 A1 EP 0484345A1
Authority
EP
European Patent Office
Prior art keywords
profiles
concrete
steel
improvement
longitudinal
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.)
Granted
Application number
EP90909826A
Other languages
German (de)
English (en)
Other versions
EP0484345B1 (fr
Inventor
Joergen Thor
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 EP0484345A1 publication Critical patent/EP0484345A1/fr
Application granted granted Critical
Publication of EP0484345B1 publication Critical patent/EP0484345B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
    • E04C3/293—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete
    • 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
    • E04B5/29—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated the prefabricated parts of the beams consisting wholly of metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders

Definitions

  • the present invention relates to an improvement in a floor beam of steel in composite action with concrete, said beam comprises at least one projecting, horizontal bearing plate for supporting floor structures and said improvement is intended to be fastened to an upper part of the beam in its longitudinal extension.
  • the load carrying ca- pacity of the steel cross-section itself often is so limited that not even the dead load of the floor can be supported, why the beam must be propped until the concrete has obtained the strength required.
  • the propping involves an evident drawback, since it often is a bar for a rational constructing.
  • An object of the present invention is to provide an im ⁇ provement in composite beams by which the steel area of the upper part of a beam in a simple way can be increased and hereby increase the compression zone of the steel cross- section before the hardening of the concrete.
  • the improvement also admits that the manu ⁇ facturing of the same can be rationalized in that it can be prefabricated in a number of variants and sizes and be kept in stock for use to different beam sizes depending on loads and spans.
  • the improvement also has such a design that it very easy and quickly can be fixed to the upper part of a floor structure supporting beam e.g by longutudinal, in ⁇ termittent welding, which also can be performed by an automatic machine.
  • the beam 1 is made of steel and has a form not closer illustrated in the drawing, which admits a composite action with concrete and comprises at least one projecting, horizontal bearing plate 3 for supporting floor structures 4.
  • the prefabricated ladder 2 comprises at least two longitudinal profiles 5 running parallel to and in a predetermined distance from each other, said profiles are positionally fixable to the upper part 6 of the beam 1.
  • the profiles 5 consist of rectangular steel pro ⁇ files.
  • a number of transverse connecting elements 7 pro ⁇ vided in a predetermined distance from each other extend between the profiles 5.
  • the connecting elements 7 consist of angle bended steel profiles, which are fixed by welding to the longi ⁇ tudinal profiles 5 having their apex formation 8 directed across the longitudinal extension of the profiles 5.
  • the connecting elements 7 can be designed with any suitable form, but angle bended steel profiles are to be preferred.
  • the connecting elements 7 are mounted in parallel to each other having a mutual distance of about 200-600 mm along the whole extension of the ladder 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Ladders (AREA)

Abstract

L'invention concerne une amélioration relative à une poutre en acier ayant une action combinée avec du béton. Ladite poutre (1) comprend au moins une plaque porteuse saillante horizontale (3) destinée à supporter des structures de plancher (4), ladite amélioration étant fixée à une partie supérieure (6) de la poutre dans son extension longitudinale. Ladite amélioration consiste en une échelle préfabriquée (2) comprenant au moins deux profilés longitudinaux (5) parallèles et situés à une distance prédéterminée l'un de l'autre. On peut fixer lesdits profilés en position sur la partie supérieure (6) de ladite poutre (1), un certain nombre d'éléments de raccordement transversaux (7) s'étendant entre ledit profilé, à une distance prédéterminée les uns des autres, afin de permettre la transmission nécessaire des forces de cisaillement pour obtenir une action combinée statique entre ladite poutre (1) et le béton, à laquelle on parvient ultérieurement. Ladite échelle (2), du fait qu'elle augmente la zone de compression de la section transversale de l'acier, est destinée à améliorer la charge admissible de ladite poutre (1) avant le coulage, et élimine ainsi la nécessité d'étançonnement avant le durcissement du béton.
EP90909826A 1989-06-15 1990-06-15 Ameliorations relatives a des poutres composites Expired - Lifetime EP0484345B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE8902163A SE466609B (sv) 1989-06-15 1989-06-15 Anordning vid en samverkanbalk
SE8902163 1989-06-15
PCT/SE1990/000427 WO1990015907A1 (fr) 1989-06-15 1990-06-15 Ameliorations relatives a des poutres composites

Publications (2)

Publication Number Publication Date
EP0484345A1 true EP0484345A1 (fr) 1992-05-13
EP0484345B1 EP0484345B1 (fr) 1994-12-21

Family

ID=20376291

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90909826A Expired - Lifetime EP0484345B1 (fr) 1989-06-15 1990-06-15 Ameliorations relatives a des poutres composites

Country Status (5)

Country Link
EP (1) EP0484345B1 (fr)
AU (1) AU5846090A (fr)
DE (1) DE69015360T2 (fr)
SE (1) SE466609B (fr)
WO (1) WO1990015907A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2731824A (en) * 1956-01-24 hadley
EP0104992B1 (fr) * 1982-09-20 1986-09-10 South African Inventions Development Corporation Structures de plancher composites
SE448897B (sv) * 1983-06-21 1987-03-23 Rolf Nystrom Stalbalk med sluten tversnittsprofil och en undersida med i sidled utskjutande flensar, s k hattprofil
US4646496A (en) * 1985-03-21 1987-03-03 Wilnau John A Structural wall and concrete form system
SE457364B (sv) * 1987-05-11 1988-12-19 Joergen Thor Brandmotstaandskraftig bjaelklagsbalk av staal i samverkan med betong

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9015907A1 *

Also Published As

Publication number Publication date
EP0484345B1 (fr) 1994-12-21
DE69015360D1 (de) 1995-02-02
SE466609B (sv) 1992-03-09
SE8902163D0 (sv) 1989-06-15
DE69015360T2 (de) 1995-08-10
AU5846090A (en) 1991-01-08
WO1990015907A1 (fr) 1990-12-27
SE8902163L (sv) 1990-12-16

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