EP1978172A2 - Poutre préfabriquée et procédé pour la réalisation d'un plancher structurel - Google Patents

Poutre préfabriquée et procédé pour la réalisation d'un plancher structurel Download PDF

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Publication number
EP1978172A2
EP1978172A2 EP20080102446 EP08102446A EP1978172A2 EP 1978172 A2 EP1978172 A2 EP 1978172A2 EP 20080102446 EP20080102446 EP 20080102446 EP 08102446 A EP08102446 A EP 08102446A EP 1978172 A2 EP1978172 A2 EP 1978172A2
Authority
EP
European Patent Office
Prior art keywords
floor
concrete
prefabricated
plates
beams
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Withdrawn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
EP20080102446
Other languages
German (de)
English (en)
Inventor
Anne Pieter Van Driesum
Hendrik Eelco Diepeveen
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 EP1978172A2 publication Critical patent/EP1978172A2/fr
Withdrawn legal-status Critical Current

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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
    • E04C3/20—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
    • 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
    • E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
    • E04B5/04—Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement
    • E04B5/043—Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement having elongated hollow cores
    • 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
    • E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
    • E04B5/04—Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement
    • E04B5/046—Load-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 with distance from another
    • 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
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
    • E04B5/38—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element
    • 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
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/06—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web
    • E04C3/065—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web with special adaptations for the passage of cables or conduits through the web
    • 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
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0426—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section
    • E04C2003/043—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section the hollow cross-section comprising at least one enclosed cavity
    • 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
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
    • E04C2003/0465—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section square- or rectangular-shaped

Definitions

  • the invention relates to a prefabricated beam, for operationally supporting floor plates, like hollowcore concrete slabs or precast reinforced concrete plates, comprising a beam part having an at least substantially trapezoidal or triangular cross section and an at least substantially rectangular bottom part.
  • Prefabricated beams of this type are known.
  • the rectangular bottom part is made wider than the trapezoidal or triangular beam part, in such a way that the ends of the floor plates may rest onto the projecting edges of the rectangular bottom part.
  • the disadvantage is that an underside of the structural floor thus obtained is not flat, as the protruding rectangular bottom parts will remain visible, which is undesirable from an aesthetic point of view.
  • the prefabricated beam according to the invention substantially obviates this disadvantage and is characterised in that a width of the beam part and a width of the bottom part are at least substantially the same.
  • bottom parts will be positioned between the floor plates and that the bottom side of the bottom parts and the bottom side of the floor plates will be positioned in one single plane, which means that a further finishing will normally no longer be necessary. It will be necessary however to support the floor plates before and during the pouring of concrete.
  • a favourable embodiment of the inventive prefabricated beam is characterised in that the beam is made of concrete, so that an underside of the structural floor thus obtained will form one single concrete surface.
  • a favourable embodiment of the inventive beam with which this connection may be improved even further is characterised in that the beam is provided with body holes, extending at least substantially perpendicular to the beam, through which coupling reinforcement may be put before concrete is poured.
  • a favourable alternative embodiment is characterised in that the beam is provided with coupling reinforcement rods, extending at least substantially perpendicular to the beam.
  • the ends of the coupling reinforcement rods are provided with hooks or looped ends, in such a way that they do not protrude outside the beam. Reinforcement rods extending inside or between the floor plates may then simply be hooked on to the hooks or looped ends.
  • the hooks or looped ends may be positioned at least substantially inside recesses made in the beam, which implies that beams may be stored and transported while stacked in a compact manner.
  • a further favourable embodiment is characterised in that a bottom side of the beam is provided with reinforcement extending in a longitudinal direction, preferably in the form of prestressed reinforcement wires or reinforcement rods. Also the top side may be provided with prestressed reinforcement wires or reinforcement rods if desired.
  • the invention also relates to a method for realising a structural floor, in the process of which prefabricated beams and prefabricated floor plates or floor parts are placed and supported, after which concrete is poured, after which the beams and the floor plates or floor parts form one integral part.
  • the inventive method is characterised in that beams having an at least substantially trapezoidal or triangular cross section are placed between the floor plates or floor parts, while the beams and the floor plates or floor parts are supported by support means, which results in a structural floor of which the underside forms one single surface.
  • a favourable realisation of the inventive method with which a relatively light floor may be constructed is characterised in that before pouring the concrete, coupling reinforcement rods are inserted straight across the beams.
  • Fig. 1 represents a steel beam 1 according to the state of the art in side view, with beam 1 forming part of a floor to be poured. Beam 1 rests on concrete columns 3 and onto beam 1 floor plates or floor parts 2a,2b are placed.
  • beam 1 has an at least substantially trapezoidal cross section and it consists of a bottom part 4 and a beam part 5 which have been welded together. Bottom part 4 is wider than beam part 5, which means that rims 6a,6b are available for supporting floor plates or floor parts 2a,2b before and during pouring concrete and during curing of the concrete.
  • a disadvantage of the floor thus obtained is that bottom part 4 protrudes outside the ceiling formed by the underside of floor plates or floor parts 2a,2b, which is undesirable from an aesthetic point of view.
  • Fig. 2 represents a possible embodiment of a steel beam 1 according to the invention in side view, where beam 1 forms part of a floor to be poured, together with floor plates or floor parts 2a,2b and concrete columns 3 onto which beam 1 rests.
  • beam 1 has an at least substantially trapezoidal cross section and consists of a bottom part 4 and a beam part 5 which have been welded together.
  • Bottom part 4 is as wide as beam part 5, which means that floor plates or floor parts 2a,2b must be supported before and during pouring and during curing of the concrete, for example with the aid of struts 7a,7b.
  • Fig. 3 represents a possible embodiment of a concrete beam 1 according to the invention in side view, where beam 1 forms part of a floor to be poured, together with floor plates or floor parts 2a,2b and concrete columns 3 onto which beam 1 rests.
  • beam 1 has an at least substantially trapezoidal cross section and consists of a bottom part 4, provided with reinforcement rods 12, and a beam part 5, which are poured together and actually form one single part.
  • Bottom part 4 is as wide as beam part 5, which means that precast reinforced concrete plates 2a,2b before and during pouring and during curing of the concrete must be supported, for example with the aid of struts 7a,7b.
  • precast reinforced concrete plates 2a,2b and bottom part 4 form one single surface now, which means that further finishing of the ceiling formed by the undersides of precast reinforced concrete plates 2a,2b and bottom part 4 is not necessary.
  • the concrete wedges created in the spaces 8a,8b form a connection between beam 1 and precast reinforced concrete plates 2a,2b.
  • the mutual connection is further increased by concrete that will enter body holes 10a,10b in beam 1.
  • coupling reinforcement rods 11 must be inserted in body holes 10a,10b, which connect to the reinforcement 13 of precast reinforced concrete plates 2a,2b.
  • Fig. 4A represents a possible embodiment of a concrete beam 1 according to the invention in front view, provided with reinforcement rods 12 and body holes 10, similar to beam 1 shown in Fig. 3 .
  • Fig. 4B represents an alternative, triangular embodiment of a concrete beam 1 according to the invention in front view, also provided with reinforcement rods 12 and body holes 10.
  • Fig. 4C represents a further alternative embodiment of a concrete beam according to the invention in front view, provided with reinforcement rods 12 and body holes 10 and with additional reinforcement rods 14 on the top side of beam 1.
  • Fig. 5 represents a possible embodiment of a concrete beam according to the invention in side view, provided with reinforcement rods 12 and body holes 10 which are positioned for example such that they operationally join the ducts of neighbouring floor plates, which means that coupling reinforcement rods may be inserted.
  • Fig. 6A represents a beam 1 provided with cross coupling reinforcement rods 11 in front view, which have been inserted while beam 1 was poured.
  • Floor plates or floor parts 2a,2b may be simply pushed in place, while coupling reinforcement rods 11 slide inside the ducts of floor plates of the hollow core type or between the reinforcement of floor plates of the precast reinforced concrete plate type.
  • Fig. 6B represents a beam 1 provided with cross coupling reinforcement rods 11 with hooks or looped ends 15a,15b in front view.
  • a beam 1 manufactured in this way can be stored and transported more easily as compared with the beam shown in Fig. 6A , while reinforcement rods for the structural floor can simply be hooked on now.
  • Fig. 6A represents a beam 1 provided with cross coupling reinforcement rods 11 in front view, which have been inserted while beam 1 was poured.
  • Floor plates or floor parts 2a,2b may be simply pushed in place, while coupling reinforcement rods 11 slide inside the ducts of floor plates of the hollow core type
  • 6C represents a beam 1 provided with cross coupling reinforcement rods 11 with hooks or looped ends 15a,15b in front view, where the hooks or looped ends are positioned inside recesses 16a,16b in beam 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
EP20080102446 2007-03-26 2008-03-10 Poutre préfabriquée et procédé pour la réalisation d'un plancher structurel Withdrawn EP1978172A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL1033588A NL1033588C1 (nl) 2007-03-26 2007-03-26 Geprefabriceerde ligger, alsmede een werkwijze voor het realiseren van een systeemvloer.

Publications (1)

Publication Number Publication Date
EP1978172A2 true EP1978172A2 (fr) 2008-10-08

Family

ID=39575702

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080102446 Withdrawn EP1978172A2 (fr) 2007-03-26 2008-03-10 Poutre préfabriquée et procédé pour la réalisation d'un plancher structurel

Country Status (2)

Country Link
EP (1) EP1978172A2 (fr)
NL (1) NL1033588C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021089919A1 (fr) * 2019-11-08 2021-05-14 Peikko Group Oy Procédé et agencement pour supporter un élément de plancher sur une poutre et poutre

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021089919A1 (fr) * 2019-11-08 2021-05-14 Peikko Group Oy Procédé et agencement pour supporter un élément de plancher sur une poutre et poutre
AU2020378656B2 (en) * 2019-11-08 2023-08-24 Peikko Group Oy Method and arrangement for supporting a floor element on a beam and beam

Also Published As

Publication number Publication date
NL1033588C1 (nl) 2008-09-29

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