WO2015097663A1 - Connecteur anti-glissement répondant aux contraintes produites par la traction et la compression - Google Patents

Connecteur anti-glissement répondant aux contraintes produites par la traction et la compression Download PDF

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Publication number
WO2015097663A1
WO2015097663A1 PCT/IB2014/067268 IB2014067268W WO2015097663A1 WO 2015097663 A1 WO2015097663 A1 WO 2015097663A1 IB 2014067268 W IB2014067268 W IB 2014067268W WO 2015097663 A1 WO2015097663 A1 WO 2015097663A1
Authority
WO
WIPO (PCT)
Prior art keywords
connectors
stiffening
connector
beams
catheti
Prior art date
Application number
PCT/IB2014/067268
Other languages
English (en)
Inventor
Enzo MORELLI
Mario MARTINA
Michele MICELI
Davide ROMEI
Original Assignee
Morelli Enzo
Martina Mario
Miceli Michele
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 Morelli Enzo, Martina Mario, Miceli Michele filed Critical Morelli Enzo
Priority to EP14830727.5A priority Critical patent/EP3087229A1/fr
Publication of WO2015097663A1 publication Critical patent/WO2015097663A1/fr

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
    • 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
    • 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
    • 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
    • E04B2005/232—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated with special provisions for connecting wooden stiffening ribs or other wooden beam-like formations to the concrete slab
    • E04B2005/237—Separate connecting elements

Definitions

  • the present invention relates to an anti-sliding connector and to a method for stiffening slab structures.
  • the connectors are arranged orthogonally to the layers they connect to prevent the sliding of a layer one onto the other one and therefore to form a single body, such as for example a beam.
  • the connectors are used to connect different portions, in particular different layers, to form a single body.
  • the several layers tend to slide one onto the other one and to subject the connectors to cutting forces.
  • the material thereof the connectors are made is steel and the steel, used in components with small section, is suitable to support tensile stresses, whereas it is much less suitable to support bending stresses.
  • An object of the present invention is then to overcome the above-illustrated problems and this is obtained by an anti-sliding connector as defined by claim 1.
  • An additional object of the present invention is a method of stiffening of a slab structure a defined in claim 7.
  • the present invention by overcoming the problems of the known art, involves several and evident advantages.
  • connectors according to the present invention allows using a lower quantity of necessary steel, as the connector, of the present invention, works with compression and tensile - instead of bending - stresses thereto the steel offers the greatest resistance. Furthermore, it requires a less working with respect to other connectors for forming bends, angles of the hole wherein the reinforcement has to be inserted, etc. All this and the higher manufacturing simplicity, consequently, involves a clear advantage even in economic terms.
  • an additional advantage is due to the fact that the connector of the present invention is less invasive of the vertical connectors existing on the market. This is very important in case of wooden beams of old buildings since, as already said, it has a much thinner screw which can penetrate deeply without damages even in the old wooden beams, whereas the vertical, much bigger connectors on the market, upon penetrating these old wooden beams, can easily break them.
  • an additional advantage is due to the increase in the surface resistance to the cutting by more than 30% as the screw is arranged tilted, mostly at 45°, and the vertical cutting force involves a tilted section of the screw (not vertical to the axis thereof) which has a surface increase of more than 30%.
  • Still an additional advantage is that, with this type of connector, the interaction takes place directly between the two structural elements, that is between the beam and the concrete layer without involving the wooden partition which, almost always, is a wood of poor quality.
  • the connector is filled-up with concrete.
  • the sliding between the two structures wooden beam and concrete layer
  • the tensile effort of the screw inserted in the beam is obstructed directly by the tensile effort of the screw inserted in the beam.
  • FIGS. 1A and 1 B illustrate a known art for implementing wooden beams starting from layers of beams fastened by orthogonal connectors, of known type
  • figure 2 is a view of a connector according to the present invention.
  • FIGS. 3A to 3D illustrate the assembly and use of connectors according to a first embodiment of the present invention
  • FIGS. 4A and 4B illustrate a second embodiment of connectors according to the present invention.
  • figure 1A illustrates by way of example, a case wherein several wooden boards must be connected therebetween to form one single body to be used as beam.
  • Figure 1 B shows the deformation type (dotted portion) thereto the so- implemented beam is subjected due to the stresses and, then, the way in which the several layers (the different boards) tend to slide one onto the other one and subject the connectors - which in the known art are orthogonal to the sliding - to cutting forces.
  • the subsequent figure 2 is a view of a connector 1 according to a first embodiment of the present invention.
  • the connector 1 comprises a sheet strip 2.
  • the strip 2 is shaped as a square triangle, with two orthogonal sides 3, 4 and an hypotenuse 5.
  • such strip can be 30-mm wide and have a thickness of 3 mm.
  • the catheti of a square triangle can be 50-mm long and the hypotenuse about 70-mm long.
  • the sizes of the various components of the connector are indicative in the sense that they could be the most commonly used ones, but, based upon the different needs, connectors with different sizes from those shown above could be implemented.
  • a hole 10 is made, thereto a second hole 1 1 , made at the contact of the catheti 3, 4, corresponds.
  • the holes 10 and 1 1 are used for the passage of a fixing member 23, preferably a screw member, of the connector to an underlying wooden beam.
  • the connector 1 can have a prolongation 6 of one of the catheti.
  • a third hole 12 advantageously can be made, useful, as it will be explained hereinafter, during the assembling procedures.
  • a free end of the prolongation 6 advantageously can further be shaped so as to have a stiffening rib useful to improve the connection with the concrete, and then the overall stiffness of the structure, as it will be better explained hereinafter.
  • this shows a portion of a slab structure, supported by wooden beams 20.
  • the anti-sliding connector 1 with tilted screw is used to connect the wooden beams of a slab directly to a concrete layer.
  • a plurality of the connectors 1 is positioned on the wooden partition 21 of the slab.
  • Each connector 1 during the assembly phases and before being fastened, can be kept in position by inserting a locking screw 22 into the hole 12.
  • Such locking screw penetrates only minimally in the underlying wood and it has no particular functions of structural sealing.
  • each connector 1 is then fastened to the underlying wood by inserting a locking screw 23.
  • Such locking screw 23, inserted in the holes 10 and 11 of the connector, will penetrate the wood according to a tilting with respect to the slab plane.
  • the connectors along the beam are assembled symmetrically.
  • the connectors are arranged with the locking screw 23 tilted from left to right in the left half of the beam, and with the screw tilted from right to left in the right half of the beam.
  • This arrangement is advantageous as the overlapped layers tend to slide one onto the other one from left to right in the first half of the beam and tend to slide from right to left in the other half of the beam.
  • the insertion of the locking screw 23 in the wooden beam is about 15-20 cm.
  • the distance of the connectors on the beam has to be determined by a calculation. In principle they thicken (with distance therebetween of about cm. 20) when the stresses are higher, whereas they thin out (up to 40-50 cm. therebetween) when the stresses are lower.
  • longitudinal bars 24 are fastened, for example by welding, at each beam.
  • Preferably such bars 24 have a diameter of at least 8 mm. They advantageously can be adequately prolonged within the load- bearing walls, preferably, if possible, as far as the outer peripheral load-bearing walls.
  • transversal bars 25 can be provided, fastened, in turn, for example by welding, to the longitudinal bars 24.
  • Le transversal bars can have equal diameter and equal interaxis with respect to the longitudinal ones and they, too, can be prolonged as far as the outest load-bearing walls.
  • polystyrol sheets 27 (or other foam material) with lower thickness than the height of the connectors 1 can be arranged, with insulating function and lightened filling-up.
  • the slab plane is made uniformly stiff in all directions, by making it more suitable to support the seismic stresses, as the existing aseismic law requires.
  • the connectors 31 must be fastened on metallic beams, for example "H"-like girders.
  • the cutting force divides into a compression acting on the hypotenuse of the connector (but there is not peak load danger as this is confined by the concrete) and a tensile force acting on the vertical cathetus.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

La présente invention concerne un connecteur anti-glissement et un procédé permettant d'apporter de la rigidité à des structures de plancher.
PCT/IB2014/067268 2013-12-24 2014-12-23 Connecteur anti-glissement répondant aux contraintes produites par la traction et la compression WO2015097663A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14830727.5A EP3087229A1 (fr) 2013-12-24 2014-12-23 Connecteur anti-glissement répondant aux contraintes produites par la traction et la compression

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000722A ITRM20130722A1 (it) 2013-12-24 2013-12-24 Connettore antiscorrimento secondo le sollecitazioni prevalenti a trazione e compressione
ITRM2013A000722 2013-12-24

Publications (1)

Publication Number Publication Date
WO2015097663A1 true WO2015097663A1 (fr) 2015-07-02

Family

ID=50159429

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2014/067268 WO2015097663A1 (fr) 2013-12-24 2014-12-23 Connecteur anti-glissement répondant aux contraintes produites par la traction et la compression

Country Status (3)

Country Link
EP (1) EP3087229A1 (fr)
IT (1) ITRM20130722A1 (fr)
WO (1) WO2015097663A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170034004A (ko) * 2015-09-18 2017-03-28 노승현 인테리어 박판 조명기기
DE102016125008A1 (de) 2016-12-20 2018-06-21 Fischer Italia S.R.L. Holz-Beton-Verbinder und Befestigungsanordnung
ES2694031A1 (es) * 2017-06-15 2018-12-17 Universidad De Valladolid Plantilla de colocación de conectores en forjado colaborante de madera-hormigón
DE102019106018A1 (de) 2018-03-27 2019-10-02 Fischerwerke Gmbh & Co. Kg Holz-Beton-Verbindungsbausatz
EP4273341A1 (fr) * 2022-05-03 2023-11-08 B. Lütkenhaus GmbH Elément de paroi, de plafond ou de toit avec cadre

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH634120A5 (en) * 1979-03-01 1983-01-14 Neomat Ag Process for surface coating a roof snow guard
JP2003239476A (ja) * 2002-02-15 2003-08-27 Ig Tech Res Inc 雪止兼融雪構造
JP2009179979A (ja) * 2008-01-30 2009-08-13 Shinken Roof Kogyo:Kk 雪止金具及びその施工方法
EP2216455A2 (fr) * 2009-02-06 2010-08-11 SWG Schraubenwerk Gaisbach GmbH Elément de connexion pour le composite de bois, composite de bois et son procédé de fabrication

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090205285A1 (en) * 2008-02-15 2009-08-20 Lightweight Structures, Llc (A Wisconsin Limited Liability Company) Composite floor systems and apparatus for supporting a concrete floor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH634120A5 (en) * 1979-03-01 1983-01-14 Neomat Ag Process for surface coating a roof snow guard
JP2003239476A (ja) * 2002-02-15 2003-08-27 Ig Tech Res Inc 雪止兼融雪構造
JP2009179979A (ja) * 2008-01-30 2009-08-13 Shinken Roof Kogyo:Kk 雪止金具及びその施工方法
EP2216455A2 (fr) * 2009-02-06 2010-08-11 SWG Schraubenwerk Gaisbach GmbH Elément de connexion pour le composite de bois, composite de bois et son procédé de fabrication

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170034004A (ko) * 2015-09-18 2017-03-28 노승현 인테리어 박판 조명기기
KR101726240B1 (ko) 2015-09-18 2017-04-12 노승현 인테리어 박판 조명기기
DE102016125008A1 (de) 2016-12-20 2018-06-21 Fischer Italia S.R.L. Holz-Beton-Verbinder und Befestigungsanordnung
ES2694031A1 (es) * 2017-06-15 2018-12-17 Universidad De Valladolid Plantilla de colocación de conectores en forjado colaborante de madera-hormigón
WO2018229320A1 (fr) * 2017-06-15 2018-12-20 Universidad De Valladolid Gabarit de mise en place de connecteurs dans un hourdi bois-béton
DE102019106018A1 (de) 2018-03-27 2019-10-02 Fischerwerke Gmbh & Co. Kg Holz-Beton-Verbindungsbausatz
EP4273341A1 (fr) * 2022-05-03 2023-11-08 B. Lütkenhaus GmbH Elément de paroi, de plafond ou de toit avec cadre

Also Published As

Publication number Publication date
EP3087229A1 (fr) 2016-11-02
ITRM20130722A1 (it) 2015-06-25

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