EP2145058A1 - Structure de poutre composite - Google Patents

Structure de poutre composite

Info

Publication number
EP2145058A1
EP2145058A1 EP08761649A EP08761649A EP2145058A1 EP 2145058 A1 EP2145058 A1 EP 2145058A1 EP 08761649 A EP08761649 A EP 08761649A EP 08761649 A EP08761649 A EP 08761649A EP 2145058 A1 EP2145058 A1 EP 2145058A1
Authority
EP
European Patent Office
Prior art keywords
dowel
pieces
composite
beam structure
structure according
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.)
Withdrawn
Application number
EP08761649A
Other languages
German (de)
English (en)
Other versions
EP2145058A4 (fr
Inventor
Arto Sivill
Markku Heinisuo
Jouko Kansa
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.)
Rautaruukki Oyj
Original Assignee
Rautaruukki Oyj
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 Rautaruukki Oyj filed Critical Rautaruukki Oyj
Publication of EP2145058A1 publication Critical patent/EP2145058A1/fr
Publication of EP2145058A4 publication Critical patent/EP2145058A4/fr
Withdrawn legal-status Critical Current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
    • E04B5/29—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
    • 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
    • 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
    • E04C3/294—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 of concrete combined with a girder-like structure extending laterally outside the element

Definitions

  • This invention relates to a composite structure, and in more detail a composite beam structure, used in the construction industry.
  • a composite structure can be understood as almost any structure composed of two or more materials, such as e.g. a conventional reinforced concrete structure. Between different structural elements, composite operation is always created when the elements are continuous i.e. monolithic or connected with a shearing connection.
  • a composite structure is generally understood as a combination of steel structures or sheet structures and concrete or reinforced concrete.
  • the operating principle of the steel-concrete composite structure is based on the almost perfect or partial co-operation between the steel part and the concrete part.
  • the steel part can be of structural steel or sheet structural steel and the concrete part of common concrete, high- strength concrete or light concrete.
  • the basic type of a steel-concrete composite structure commonly used as an intermediate floor structure can be considered to be a single- span freely-supported composite beam on which a hollow-core slab / a closed composite slab or the like rests.
  • dowels dowel pins, welded on the upper flange of a steel profile, which are dimensioned as elastic connectors.
  • the ratio of steel and concrete should be optimal in the composite structures. Steel is liable for tensile stresses and concrete is liable for bearing stresses, then the best characteristics of each can be utilised.
  • a composite beam constituted by concrete and steel (usually the concrete part is pressed and the steel part drawn in the composite beam structure), the co-operation between the parts is provided mechanically.
  • the composite beams are installed on supports, after which hollow-core slabs or other slabs or the like are installed resting on them. After the installation of the slabs, the seams and the beam are filled with concrete.
  • a composite beam structure which structure includes several dowel pieces for forming a connection between steel and concrete, and the dowel pieces are bar- like pieces circular of their cross-section which are fastened on the upper surface of the beam.
  • the dowel pieces On the upper end of the dowel pieces, there is a widened part, circular seen from the top, and the arrangement according to the specification further utilises a support mesh in forming and improving the connection between concrete and steel.
  • Specification AT 301821 describes a composite structure in which folds have been made for support in a V-shaped piece fillable with concrete, manufactured by bending from a plate.
  • connection i.e. the co-operation between steel and concrete in the connection, in the best possible way such that the connection would operate almost perfectly (or perfectly which is the aim of the connection).
  • the object of this invention is to provide a novel type of a composite structure, or in more detail a composite beam structure, by means of which disadvantages of known arrangements can be minimised or eliminated, and thus by means of which is provided a functioning and extremely good composite beam arrangement of its costs and other characteristics i.e. technical qualities.
  • An advantage of the arrangement according to the invention compared to the known arrangements is that it provides a better connection between steel and concrete than known arrangements, which connection fulfils the demands of rigidity and endures loads and stresses directed at it better than known arrangements i.e. the connection is able to receive vertical and horizontal forces in the structure (occurring at its different points).
  • the dowel pieces which are the shape of a rectangular prism, such as e.g. quadratic, lack a projection surface receiving/conveying vertical forces.
  • An advantage of the arrangement according to the invention is also that awkward bendings or other laborious processing measures can be avoided in it.
  • a further advantage of the arrangement according to the invention is that, with the composite beam structure according to the invention, the consumption of steel required in the composite beam structure can be decreased and then a considerable economic benefit is provided.
  • Fig. Ia shows a cross-section of a simplified composite beam arrangement according to the invention seen from the end of the beam.
  • Fig. Ib shows an arrangement according to the invention seen from the side of the beam.
  • Fig. Ic shows a top view of dowel pieces, fastened inclined in the beam.
  • Figs. 2a-2f show a front view of the different shapes of the dowel piece.
  • a slab-like piece 2 such as e.g. a hollow-core slab.
  • the height of the slab- like piece is, according to the figure, almost equal to the height of the beam 3 but the slab can also be considerably lower than the height of the beam.
  • a casting 1 is formed which is advantageously concrete casting, and one or more dowel pieces 4 remaining inside the casting, which dowel pieces are fastened on the upper surface of the beam by welding at a desired point.
  • the height of the casting can vary considerably depending on different targets of application, but typically the height of the casting is between 40 mm-200 mm.
  • the length of the dowel pieces is at least threefold in relation to the width of the upper surface of the dowel pieces. In an advantageous case, the length of the dowel pieces is at least about fivefold in relation to the width of the upper surface of the dowel pieces.
  • the width of the upper surface of the dowel pieces is typically between 20 mm-70 mm, but it can also be wider or narrower, depending on the load of the beam or on the amount of composite effect required.
  • the length of the dowel pieces can vary, but it is typically at least 30% of the width of the upper surface of the beam.
  • the dowel pieces can also extend over the width of the upper surface of the beam.
  • the dowel pieces are fastened in the beam in a perpendicular angle or inclined seen from the top as shown in Fig. Ic.
  • Fig. 1 is shown only to illustrate a composite beam structure according to the invention, it does not implicate steel profiles, composite plates or auxiliary reinforcements etc. remaining partially or totally inside the casting.
  • the arrangement according to the invention can utilise all already known beams and beam types, such as an I beam, a T beam, a WQ beam, a box beam etc.
  • the dowel pieces can be the shape of a parallelogram or a trapezium, triangular, or the dowel pieces can include one or more bevels, such as e.g. shown in Fig. 2f.
  • the dowel pieces can be substantially of the shape of T or I or L
  • the dowel pieces can also include one or more roundings. It is also essential that the dowel pieces thus have at least one inclined surface or one curved surface or two straight surfaces or combinations of the above surfaces.
  • the dowel pieces can be hollow or perforated and support bars, such as e.g. round steel bars or the like, can have been arranged inside the dowel pieces, the task of which bars is to improve the composite effect by increasing the gripping surface.
  • support bars such as e.g. round steel bars or the like
  • Round steel bars can also be utilised in anchoring the slab/slabbings on the beam and a mesh can be set at the base of the dowels to improve the composite effect.
  • the mesh can be manufactured e.g. of steel.
  • used arrangements may be varied quite widely. It is also possible to consider e.g. such an arrangement in which already known dowel pieces and/or sections (section arrangements) increasing the grip of steel and concrete are combined with the dowel pieces described here to be used together in order to provide a composite effect as good as possible in the connection between steel and concrete.

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)
  • Joining Of Building Structures In Genera (AREA)
  • Rod-Shaped Construction Members (AREA)

Abstract

La présente invention concerne une structure de poutre composite utilisée dans l'industrie de construction dans laquelle une ou plusieurs pièces en forme de dalle (2) et une poutre (3) sont reliées les unes aux autres, de façon avantageuse avec une pièce coulée (4), et laquelle structure de poutre composite comprend au moins une poutre, telle qu'une poutre en acier, par-dessus laquelle sont fixées une ou plusieurs pièces de goujon (4), et dans laquelle la longueur des pièces de goujon fixées dans la poutre est au moins trois fois plus importante par rapport à la largeur de la surface supérieure des pièces de goujon, et la pièce de goujon est capable de transférer des forces dans la liaison entre le béton et l'acier à la fois dans la direction verticale et dans la direction longitudinale de la poutre.
EP08761649A 2007-05-16 2008-05-08 Structure de poutre composite Withdrawn EP2145058A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20070384A FI20070384A (fi) 2007-05-16 2007-05-16 Liittopalkkirakenne
PCT/FI2008/050253 WO2008139029A1 (fr) 2007-05-16 2008-05-08 Structure de poutre composite

Publications (2)

Publication Number Publication Date
EP2145058A1 true EP2145058A1 (fr) 2010-01-20
EP2145058A4 EP2145058A4 (fr) 2012-11-28

Family

ID=38069427

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08761649A Withdrawn EP2145058A4 (fr) 2007-05-16 2008-05-08 Structure de poutre composite

Country Status (4)

Country Link
EP (1) EP2145058A4 (fr)
FI (1) FI20070384A (fr)
RU (1) RU2423585C1 (fr)
WO (1) WO2008139029A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVI20130154A1 (it) * 2013-06-17 2014-12-18 Tecnaria S P A Connettore per il rinforzo dei solai in edilizia
FR3032733B1 (fr) * 2015-02-16 2024-04-26 Mohamed Laraki Element de construction et procede de montage d'un tel element de construction

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE605704C (de) * 1932-07-30 1934-11-16 Otto Schaub Verbundbauteil mit einer Betondruckplatte und diese abstuetzenden Formeisenbalken
DE821503C (de) * 1950-05-14 1951-11-19 Fried Krupp Stahlbau Rheinhaus Verduebelung zwischen Stahltraegern und vorgespannten Betonplatten von Verbundtragwerken
DE1114298B (de) * 1959-03-05 1961-09-28 Friedr Remy Nachf G M B H Plattendecke mit Halteklammer zum Verankern und Sichern der Platten
DE2218573A1 (de) * 1972-04-17 1973-10-31 Gerhard Dipl Ing Tuch Verbundtraeger mit gezahnt-gestanzten obergurtprofil
GB1341824A (en) * 1969-10-31 1973-12-25 Williams G M J Fuller M E Composite structural members
AT335703B (de) * 1975-07-25 1977-03-25 Koss Kurt Schubanker fur verbundtrager
DE29505968U1 (de) * 1995-03-25 1995-08-10 Brendel, Irmfried, Dipl.-Ing., 79410 Badenweiler Stahlverbundträger

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2340176A (en) 1942-03-23 1944-01-25 Porete Mfg Company Shear reinforced composite structure
US2479475A (en) * 1944-03-16 1949-08-16 Porete Mfg Company Composite structure with triangular shear connectors
US2479476A (en) * 1944-04-25 1949-08-16 Porete Mfg Company Composite structure embodying shear connectors
DE1005710B (de) * 1953-09-05 1957-04-04 Richard Doorentz Stahlbetondecke auf frei gelagerten Metalltraegern
US3138899A (en) * 1959-10-15 1964-06-30 Homer M Hadley Structurally integrated composite members
AT301821B (de) 1969-07-17 1972-08-15 Oesterr Alpine Montan Verbundtraeger
DE3581080D1 (de) * 1985-09-17 1991-02-07 Wolfhart Andrae Verbundmittel fuer stahlbeton-verbundtragwerke.
US6871462B2 (en) * 2001-07-09 2005-03-29 Board Of Regents Of University Of Nebraska Composite action system and method
AU2002951787A0 (en) 2002-10-02 2002-10-17 University Of Western Sydney A composite beam
US6807789B1 (en) 2003-05-23 2004-10-26 Daewoo Engineering & Construction Co., Ltd Steel-concrete composite beam using asymmetric section steel beam

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE605704C (de) * 1932-07-30 1934-11-16 Otto Schaub Verbundbauteil mit einer Betondruckplatte und diese abstuetzenden Formeisenbalken
DE821503C (de) * 1950-05-14 1951-11-19 Fried Krupp Stahlbau Rheinhaus Verduebelung zwischen Stahltraegern und vorgespannten Betonplatten von Verbundtragwerken
DE1114298B (de) * 1959-03-05 1961-09-28 Friedr Remy Nachf G M B H Plattendecke mit Halteklammer zum Verankern und Sichern der Platten
GB1341824A (en) * 1969-10-31 1973-12-25 Williams G M J Fuller M E Composite structural members
DE2218573A1 (de) * 1972-04-17 1973-10-31 Gerhard Dipl Ing Tuch Verbundtraeger mit gezahnt-gestanzten obergurtprofil
AT335703B (de) * 1975-07-25 1977-03-25 Koss Kurt Schubanker fur verbundtrager
DE29505968U1 (de) * 1995-03-25 1995-08-10 Brendel, Irmfried, Dipl.-Ing., 79410 Badenweiler Stahlverbundträger

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2008139029A1 *

Also Published As

Publication number Publication date
FI20070384A (fi) 2008-11-17
FI20070384A0 (fi) 2007-05-16
WO2008139029A1 (fr) 2008-11-20
RU2423585C1 (ru) 2011-07-10
EP2145058A4 (fr) 2012-11-28

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