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WO1997003260A1 - Device for joining the web of a metal section to concrete in a composite construction - Google Patents

Device for joining the web of a metal section to concrete in a composite construction Download PDF

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Publication number
WO1997003260A1
WO1997003260A1 PCT/FR1996/001080 FR9601080W WO9703260A1 WO 1997003260 A1 WO1997003260 A1 WO 1997003260A1 FR 9601080 W FR9601080 W FR 9601080W WO 9703260 A1 WO9703260 A1 WO 9703260A1
Authority
WO
WIPO (PCT)
Prior art keywords
core
frames
contact
distributor
concrete
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.)
Ceased
Application number
PCT/FR1996/001080
Other languages
French (fr)
Inventor
Jean-Michel Hottier
Jean-Pierre Turck
Bernard Jeanmeure
Robert Marcellier
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.)
Centre dEtudes Techniques de lEquipment de lEst Service Exterieur de lEtat
Original Assignee
Centre dEtudes Techniques de lEquipment de lEst Service Exterieur de lEtat
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 Centre dEtudes Techniques de lEquipment de lEst Service Exterieur de lEtat filed Critical Centre dEtudes Techniques de lEquipment de lEst Service Exterieur de lEtat
Priority to AU66170/96A priority Critical patent/AU6617096A/en
Priority to EP96925771A priority patent/EP0888484A1/en
Publication of WO1997003260A1 publication Critical patent/WO1997003260A1/en
Anticipated expiration legal-status Critical
Ceased 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
    • E04C3/29—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
    • 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

Definitions

  • connection In the field of mixed concrete steel construction, the connection is obtained by fixing stops: studs, angles, hoops ... whose function is to balance the longitudinal shear stress field at the concrete steel interface.
  • stops studs, angles, hoops ... whose function is to balance the longitudinal shear stress field at the concrete steel interface.
  • These 5 " connections generally have shapes and dimensions allowing the least aggressive diffusion of the stresses in the concrete. Generally these stops are fixed on the upper flange of the profiles.
  • the mixed section consisting of a concrete slab and a T-shaped metal profile whose core is perforated is known.
  • the cutting of the core causes a discontinuity of the steel of the profile in the concrete.
  • the edge of the metallic core then diffuses the longitudinal shear stresses into the concrete.
  • European Patent No. E 0 369 914 of November 16, 1989 discloses that the notch formed in the edge of the cut-out of the core enables one or more reinforcements to be placed playing the role of connector.
  • the curve shows two areas:
  • a first area which can be described as a service limit state 30 is characterized by the formation of a pyramid (10) delimited by shear planes the top of which comes from the edge (1 1) of the core (1). This area is limited by a load corresponding to approximately '> 60% of the ruin load, below this load the cracking
  • 35 - a second area which can be described as ultimate limit state characterized by the formation of a shear plane (1 2) depending exclusively on the stops.
  • the second pusch-out test campaign carried out on test bodies equipped with the new device which is the subject of the present invention made it possible to highlight the shear planes in the concrete and brought ruin loads of approximately 1,350 kN ⁇ Q while the tests without said device were around 800 kN.
  • the presence of the device of the invention allows a gain in resistance of the order of 70%.
  • the device according to the invention allows the connection of concrete steel without fixing specific connectors on the steel beam but by simple contact with the reinforced concrete reinforcement beam.
  • the invention makes it possible to control the plans of rupture by shearing of the concrete.
  • Figure 1 shows in longitudinal section the device Figure 2 shows the distributor diffuser link Figure 3 shows the cross section of the device ia Figure 4 shows in perspective the device
  • £ ⁇ figure 5 represents a variant of the monobloc device ia figure 6 represents the monobloc device on cut dovetail figure 7 represents in perspective the cracks and shear planes of a test of pusch-out figure 8 represents the curves of sliding with HA steels
  • Figure 9 shows the longitudinal section of a set position ⁇ born above the core Figure 1 0 shows the longitudinal section of sets forming basket to fit on the core Figure 1 1 shows the cross section at right of the diffuser
  • figure 1 2 represents the current cross section
  • the shear stress generated by the web (1) of the profile is firstly transmitted by simple contact to a diffuser (3) constituted by one or more high-grip bars 40 sufficiently rigid and supported at at least two points. on a distributor (4) figure 2.
  • the distributor (4) is designed so that it can be in contact on each side of the frame (5a) in Figure 3.
  • the stress is then distributed over the perimeter of the frame (5a).
  • the overall behavior of the concrete steel connection can s ⁇ ⁇ well be modeled and quantified.
  • the frames can be shaped so that the elements (4 and 5a) or (3, 4 and 5a) or (3, 4, 5a, 5b) in Figure 5 are made in one piece to form a single unit.
  • the assembly can be designed symmetrically (3, 4, 5a, 5b .... 5b, 5a, 4, 3,) in this case the ends are in contact with the sections of the profile which are opposite, l he assembly gives a symmetrical mechanical behavior to the mixed structure.
  • ⁇ ⁇ r A method of setting up the connection consisting in playing on the elastic deformation of the one-piece armature assembly defined above makes it possible to compress and slide the assembly in the cutting of the core between the edges of the 'soul opposite, the contact 30 being established by elastic return of the monoblock.
  • the keying of the monobioc assembly can be carried out by the engagement of the reinforcements on a particular profile of the cut, for example a tenon, or in a notch specially cut in the slice of $ ⁇ - the core.
  • the assembly can also be placed above the core, FIG. 5, in order to transmit and balance the stresses, most often loads of concrete (2) to the core (1) with the set of reinforcements ( 3) (4) (5a) (5b) in whole or in part, it can also be oriented in any direction of space depending on the constraints to be balanced, several sets can be combined.
  • a set of frames (4a) is preferably placed horizontally in contact with the core (1) and the horizontal diffuser (3), the frames (4a) are continuous, the frames (4b) are frames open at the bottom including the i ⁇ armatures (4a) and mounting and hooping threads (10), fretting the head of the core.
  • the whole or part of the whole (3) (4a) (4b) (10) is prefabricated to constitute a basket facilitating the implementation.
  • the distributors (4) would benefit from being placed in contact with the core and the diffuser (s) (3), the distributors (4) being able to thus be reconciled or added.
  • the reasoning and the tests are based on the hypothesis of the cutting of the wave core, it can also be applied to any continuous wall, core, sole, profile.
  • the diffuser (3) is placed in a notch or in a hole located in a continuous part of a wall within the meaning of Eurocode 3.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

A device for joining the web of a metal section to concrete in a composite construction. The device consists of a load diffuser (3) embedded in the concrete (2) and made up of one or more high adhesion reinforcing bars engaging an edge of the web of the section (1) as well as at least two points on a load distributor (4) contacting a frame (5a) on each side thereof. The device may be used in composite constructions.

Description

Dispositif pour connecter l'âme d'un profilé métallique au béton dans une construction mixte. Device for connecting the core of a metal profile to concrete in a mixed construction.

Dans le domaine de la construction mixte acier béton, la connexion est obtenue par la fixation de butées : goujons, cornières, arceaux... ayant pour fonction d'équilibrer le champ de contraintes de cisaillement longitudinal à l'interface acier béton. Ces connexions 5" possèdent généralement des formes et des dimensions permettant une diffusion la moins agressive possible des contraintes dans le béton. Généralement ces butées sont fixées sur la semelle supérieure des profilés.In the field of mixed concrete steel construction, the connection is obtained by fixing stops: studs, angles, hoops ... whose function is to balance the longitudinal shear stress field at the concrete steel interface. These 5 " connections generally have shapes and dimensions allowing the least aggressive diffusion of the stresses in the concrete. Generally these stops are fixed on the upper flange of the profiles.

10 Par ailleurs la section mixte constituée d'une dalle béton et d'un profilé métallique en forme de T dont l'âme est ajourée est connue. La découpe de l'âme entraîne une discontinuité de l'acier du profilé dans le béton. La tranche de l'âme métallique diffuse alors les con¬ traintes de cisaillement longitudinales dans le béton.10 Furthermore, the mixed section consisting of a concrete slab and a T-shaped metal profile whose core is perforated is known. The cutting of the core causes a discontinuity of the steel of the profile in the concrete. The edge of the metallic core then diffuses the longitudinal shear stresses into the concrete.

1 5" 1 5 "

Le brevet européen n° E 0 369 914 du 16 novembre 1989 divu¬ lgue que l'encoche ménagée dans la tranche de la découpe de l'âme per¬ met de placer une ou plusieurs armatures jouant le rôle de connecteur.European Patent No. E 0 369 914 of November 16, 1989 discloses that the notch formed in the edge of the cut-out of the core enables one or more reinforcements to be placed playing the role of connector.

•£ 0 Une première campagne d'essais de type pusch-out a permis de caractériser le comportement d'une découpe de l'âme en queue d'arronde, figure 7 .• £ 0 A first pusch-out test campaign made it possible to characterize the behavior of a cutting of the core in a dovetail, Figure 7.

Les essais ont consisté à établir la loi de comportement de l'effort par rapport au glissement longitudinal, figure 8 et à observer -2 S" le mode de ruine suivant :The tests consisted in establishing the law of behavior of the force compared to the longitudinal sliding, figure 8 and in observing -2 S " the following mode of failure:

- Seule la résistance au cisaillement du béton intervient dans le comportement mécanique du connecteur.- Only the shear strength of concrete is involved in the mechanical behavior of the connector.

La courbe fait apparaître deux domaines:The curve shows two areas:

- un premier domaine que l'on peut qualifier d' état limite de service 30 estcaractérisé par la formation d'une pyramide (10) délimitée par des plans de cisaillement dont le sommet est issu de la tranche (1 1 ) de l'âme (1 ). Ce domaine est limité par une charge correspondant à environ '> 60% de la charge de ruine, en dessous de cette charge la fissuration- A first area which can be described as a service limit state 30 is characterized by the formation of a pyramid (10) delimited by shear planes the top of which comes from the edge (1 1) of the core (1). This area is limited by a load corresponding to approximately '> 60% of the ruin load, below this load the cracking

J n'est pas perceptible.J is not noticeable.

35 - un deuxième domaine que l'on peut qualifier d'état limite ultime caractérisé par la formation d'un plan (1 2) de cisaillement dépendant exclusivement des butées.35 - a second area which can be described as ultimate limit state characterized by the formation of a shear plane (1 2) depending exclusively on the stops.

FEUILLE DE REMPLACEMENT (RÈGLE 26) Partant de ces constatations, il apparaît que si les contraintes de cisaillement de la masse de béton devant la tranche de l'âme étaient maîtrisées et que l'aire de cisaillement pouvait être augmentée l'utilisation d'une telle connexion serait économique.SUBSTITUTE SHEET (RULE 26) On the basis of these observations, it appears that if the shear stresses of the mass of concrete in front of the edge of the core were controlled and that the shear area could be increased, the use of such a connection would be economical.

SS

La deuxième campagne d'essais pusch-out réalisée sur des corps d'épreuves équipés du nouveau dispositif objet de la présente invention ont permi de mettre en évidence les plans de cisaillement dans le béton et ont apporté des charges de ruine d'environ 1 350 kN ΛQ alors que les essais sans ledit dispositif se situaient vers 800 kN.The second pusch-out test campaign carried out on test bodies equipped with the new device which is the subject of the present invention made it possible to highlight the shear planes in the concrete and brought ruin loads of approximately 1,350 kN ΛQ while the tests without said device were around 800 kN.

Donc avec des géometries et des matériaux identiques la présence du dispositif de l'invention permet un gain de résistance de l'ordre de 70% .So with identical geometries and materials, the presence of the device of the invention allows a gain in resistance of the order of 70%.

1 T1 T

Le dispositif selon l'invention permet la connexion acier béton sans fixation de connecteurs spécifiques sur la poutre en acier mais par simple contact poutre armature de béton armé. L'invention permet de maîtriser les plans de rupture par cisaillement du béton.The device according to the invention allows the connection of concrete steel without fixing specific connectors on the steel beam but by simple contact with the reinforced concrete reinforcement beam. The invention makes it possible to control the plans of rupture by shearing of the concrete.

*0 la figure 1 représente en coupe longitudinale le dispositif la figure 2 représente la liaison diffuseur répartiteur la figure 3 représente la coupe transversale du dispositif ia figure 4 représente en perspective le dispositif* 0 Figure 1 shows in longitudinal section the device Figure 2 shows the distributor diffuser link Figure 3 shows the cross section of the device ia Figure 4 shows in perspective the device

£ Ç la figure 5 représente une variante du dispositif monobloc ia figure 6 représente ie dispositif monobloc sur découpe queue aronde la figure 7 représente en perspective les fissures et plans de cisaillementd'une épreuve d'essai pusch-out la figure 8 représente ies courbes de glissement avec des aciers HA£ Ç figure 5 represents a variant of the monobloc device ia figure 6 represents the monobloc device on cut dovetail figure 7 represents in perspective the cracks and shear planes of a test of pusch-out figure 8 represents the curves of sliding with HA steels

30 la figure 9 représente la coupe longitudinale d'un ensemble position¬ né au dessus de l'âme la figure 1 0 représente la coupe longitudinale d' ensembles formant corbeille à emboîter sur l'âme la figure 1 1 représente la section transversale au droit du diffuseur30 Figure 9 shows the longitudinal section of a set position¬ born above the core Figure 1 0 shows the longitudinal section of sets forming basket to fit on the core Figure 1 1 shows the cross section at right of the diffuser

3 ^ la figure 1 2 représente la section transversale courante3 ^ figure 1 2 represents the current cross section

La contrainte de cisaillement engendrée par l'âme (1 ) du profilé est dans un premier temps transmise par simple contact à un diffuseur (3) constitué par une ou plusieurs barres à haute adhérence 40 suffisamment rigides et s'appuyant en au moins deux points sur un répartiteur (4) figure 2. i Le répartiteur (4) est conçu de manière à pouvoir être en contact sur chaque côté du cadre (5a) figure 3.The shear stress generated by the web (1) of the profile is firstly transmitted by simple contact to a diffuser (3) constituted by one or more high-grip bars 40 sufficiently rigid and supported at at least two points. on a distributor (4) figure 2. i The distributor (4) is designed so that it can be in contact on each side of the frame (5a) in Figure 3.

La contrainte est aiors répartie sur ie périmètre du cadre (5a).The stress is then distributed over the perimeter of the frame (5a).

L'analyse des essais pusch-out efectués avec le dispositif de la présente invention montrent qu'il y a rupture par cisaillement sur le pian enveloppe ou périphérique du volume de béton limité par les cadres (5a, 5b, 5c) figure 4.Analysis of the pusch-out tests carried out with the device of the present invention show that there is a break in shear on the envelope or peripheral plane of the volume of concrete limited by the frames (5a, 5b, 5c) in Figure 4.

Λ O le comportement de la connexion ainsi obtenue peut être qualifiée de rigide au sens de l'Eurocode 4 partie 1 -NFP 22-391 -DAN.Λ O the behavior of the connection thus obtained can be described as rigid within the meaning of Eurocode 4 part 1 -NFP 22-391 -DAN.

Le comportement global de la connexion acier béton peut s\ Ç ainsi être modélisé et quantifié.The overall behavior of the concrete steel connection can s \ Ç well be modeled and quantified.

Les armatures peuvent être façonnées de manière à ce que les éléments (4 et 5a) ou (3, 4 et 5a) ou (3, 4, 5a ,5b ) figure 5 soient réalisés en une seule pièce pour constituer un ensemble monobloc.The frames can be shaped so that the elements (4 and 5a) or (3, 4 and 5a) or (3, 4, 5a, 5b) in Figure 5 are made in one piece to form a single unit.

* Ks* Ks

L'ensemble peut être conçu de manière symétrique (3, 4, 5a ,5b....5b, 5a, 4, 3, ) dans ce cas les extrémitées sont en contact avec les tranches du profilé qui sont vis à vis, l'ensemble confère un comportement mécanique symétrique à la structure mixte. ι <r Un procédé de mise en place de ia connexion consistant à jouer sur la déformation élastique de l'ensemble armature monobloc défini ci-dessus permet de comprimer et de glisser l'ensemble dans la découpe de l'âme entre les tranches de l'âme vis à vis, le contact 30 étant établi par retour élastique du monobloc.The assembly can be designed symmetrically (3, 4, 5a, 5b .... 5b, 5a, 4, 3,) in this case the ends are in contact with the sections of the profile which are opposite, l he assembly gives a symmetrical mechanical behavior to the mixed structure. ι < r A method of setting up the connection consisting in playing on the elastic deformation of the one-piece armature assembly defined above makes it possible to compress and slide the assembly in the cutting of the core between the edges of the 'soul opposite, the contact 30 being established by elastic return of the monoblock.

Le clavetage de l'ensembie monobioc peut s'effectuer par l'engagement des armatures sur un profil particulier de la découpe par exemple un tenon, ou dans une encoche spécialement découpée dans ia tranche de } $- l'âme.The keying of the monobioc assembly can be carried out by the engagement of the reinforcements on a particular profile of the cut, for example a tenon, or in a notch specially cut in the slice of $} - the core.

Pour éviter ia ruine du béton sous charges verticales au droit de l'âme dans la partie supérieure, en alternative de la solution précédente, toujours pour éviter la ruine du béton et pour transmettre les charges 4 0 verticales directement à l'âme il faut d'une part fretter le béton au dessus de l'âme et mieux dans l'environnement de l'âme, d'autre part faire cheminer les charges verticales vers l'âme par l'intermédiaire des répartiteurs (4a) en contact avec les diffuseurs (3) eux-mêmes en contact avec l'âmeTo avoid the ruin of the concrete under vertical loads in line with the core in the upper part, as an alternative to the previous solution, always to avoid the ruin of the concrete and to transmit the vertical loads directly to the core, it is necessary to on the one hand hooping the concrete above the core and better in the environment of the core, on the other hand making the vertical loads flow towards the core via distributors (4a) in contact with the diffusers (3) themselves in contact with the core

L'ensembie peut aussi être placé au dessus de l'âme, figure 5, pour 5 transmettre et équilibrer les contraintes, le plus souvent de charges du béton (2) à l'âme (1 ) avec l'ensemble d'armatures (3) (4) (5a) (5b) en tout ou partie, il peut aussi être orienté dans n'importe quelle direction de l'espace en fonction des contraintes à équilibrer, plusieurs ensembles sont combinables.The assembly can also be placed above the core, FIG. 5, in order to transmit and balance the stresses, most often loads of concrete (2) to the core (1) with the set of reinforcements ( 3) (4) (5a) (5b) in whole or in part, it can also be oriented in any direction of space depending on the constraints to be balanced, several sets can be combined.

Λ OΛ O

Pour reprendre les contraintes verticales un ensemble d'armatures (4a) est placé horizontalement préférentiellement aux contacts avec l'âme (1 ) et le diffuseur (3) horizontal, les armatures (4a) sont filantes, les armatures (4b) sont des cadres ouverts en partie basse englobant les i Ç armatures (4a) et filantes de montage et de frettage (10), frettant la tête de l'âme.To take up the vertical constraints, a set of frames (4a) is preferably placed horizontally in contact with the core (1) and the horizontal diffuser (3), the frames (4a) are continuous, the frames (4b) are frames open at the bottom including the i Ç armatures (4a) and mounting and hooping threads (10), fretting the head of the core.

L'ensemble ou partie de l'ensemble (3) (4a) (4b) (10) est préfabriqué pour constituer une corbeille facilitant la mise en oeuvre.The whole or part of the whole (3) (4a) (4b) (10) is prefabricated to constitute a basket facilitating the implementation.

1010

Pour augmenter la rigidité de la transmission des sollicitations de l'âme vers le béton ou vice versa, les répartiteurs (4) gagneraient à être placés aux contacts de l'âme et du ou des diffuseurs (3), les répartiteurs (4) pouvant ainsi être rapprochés ou ajoutés.To increase the rigidity of the transmission of stresses from the core to the concrete or vice versa, the distributors (4) would benefit from being placed in contact with the core and the diffuser (s) (3), the distributors (4) being able to thus be reconciled or added.

I TI T

Le raisonnement et les essais s'appuient sur i'hypothèse de la découpe de l'âme en onde, il peut aussi s'appliquer à toute paroi continue, âme, semelle, profilé.The reasoning and the tests are based on the hypothesis of the cutting of the wave core, it can also be applied to any continuous wall, core, sole, profile.

3 0 Pour simplifier ou supprimer la découpe et industrialiser le process, dans le cas d'une paroi continue, pour assurer la transmission des sollicitations horizontales de l'âme vers le béton, des trous ou des encoches sont ménagés dans la paroi pour recevoir les diffuseurs (3), la paroi étant comprise au sens de l'eurocode 3.3 0 To simplify or eliminate cutting and industrialize the process, in the case of a continuous wall, to ensure the transmission of horizontal stresses from the core to the concrete, holes or notches are provided in the wall to receive the diffusers (3), the wall being understood within the meaning of Eurocode 3.

Le diffuseur (3) est piacé dans une encoche ou dans un trou situé dans une partie continue d'une paroi au sens de l'eurocode 3. NOMENCLATUREThe diffuser (3) is placed in a notch or in a hole located in a continuous part of a wall within the meaning of Eurocode 3. NOMENCLATURE

AMESOUL

BÉTONCONCRETE

DI FFUSEURSTREAMER

RÉPARTITEURDISTRIBUTOR

CADRE a, b, c,FRAME a, b, c,

BARRES TRANSVERSALESCROSS BARS

FI LANTFI LANT

ÉVIDEMENTObviously

ENCOCHENOTCH

FILANT DE MONTAGE ET FRETTAGE MOUNTING AND FRETTING THREAD

Claims

REVENDICATIONS 1 ) Dans le domaine de la construction mixte de génie civil, dispositif pour connecter l'âme (1 ) d'un profilé métallique au béton (2) caractérisé en ce que le glissement longitudinal est équilibré aux états limites de service par un ensemble d'armatures placées de préférence 5~ perpendiculairement à l'axe longitudinal du profilé composé d'un diffu¬ seur (3) ou armatures en contact avec l'âme, d'un répartiteur (4) ou d'une armature façonnée de répartition en contact avec le diffuseur, d'un cadre (5a) en contact avec l'armature façonnée, d'un groupe de cadres ( 5b, 5c...), la présence d'un ou plusieurs lits de barres transver-1) In the field of mixed construction of civil engineering, device for connecting the core (1) of a metal profile to concrete (2) characterized in that the longitudinal sliding is balanced at the service limit states by a set of '' armatures placed preferably 5 ~ perpendicular to the longitudinal axis of the profile composed of a diffuser (3) or armatures in contact with the core, a distributor (4) or a shaped armature of distribution in contact with the diffuser, a frame (5a) in contact with the shaped frame, a group of frames (5b, 5c ...), the presence of one or more beds of transverse bars Λ O sales (6) traversant l'âme confèrent un comportement ductile au delà de l'état limite de service jusqu'à l'état limite ultime. Les sollicitations mécaniques étant maîtrisées de l'âme à la zone de béton armée par la taille et la position des cadres déterminant un volume dont la surface enveloppe représente l'aire de résistance auSales O sales (6) passing through the core give ductile behavior beyond the service limit state to the ultimate limit state. The mechanical stresses being controlled from the core to the reinforced concrete zone by the size and the position of the frames determining a volume whose envelope surface represents the area of resistance to /f Ç cisaillement du béton./ f Ç shearing of concrete. Les plans définis par les armatures (6) matérialisent des aires de résistance au cisaillement permettant en outre d'obtenir une charge de ruine plus grande que celle de l'état limite de service.The planes defined by the reinforcements (6) materialize areas of resistance to shearing making it possible moreover to obtain a load of ruin greater than that of the limit state of service. 2) Dispositif selon la revendication 1 caractérisé en ce que le -Z O répartiteur (4) comporte au moins deux points de contact.2) Device according to claim 1 characterized in that the -Z O distributor (4) has at least two contact points. 3) Dispositif selon la revendication 1 ou 2 caractérisé en ce que le répartiteur (4) est en contact avec chaque côté du cadre (5) en vue de répartir et de maîtriser le flux de contraintes.3) Device according to claim 1 or 2 characterized in that the distributor (4) is in contact with each side of the frame (5) in order to distribute and control the flow of stresses. 4) Dispositif selon l'une quelconque des revendications précédentes £ Ç caractérisé en ce que le diffuseur (3) et le répartiteur (4) forment une seule pièce.4) Device according to any one of the preceding claims £ Ç characterized in that the diffuser (3) and the distributor (4) form a single piece. 5) Dispositif selon l'une quelconque des revendications précédentes caractérisé en ce que ie répartiteur (4) et le cadre (5a) forment une seule pièce.5) Device according to any one of the preceding claims, characterized in that the distributor (4) and the frame (5a) form a single piece. 3 Q 6) Dispositif selon l'une quelconque des revendications précédentes caractérisé en ce que le diffuseur (3), le répartiteur (4), le cadre (5a) forment une seule pièce.3 Q 6) Device according to any one of the preceding claims, characterized in that the diffuser (3), the distributor (4), the frame (5a) form a single piece. 7) Dispositif selon l'une quelconque des revendications précédentes caractérisé en ce que le diffuseur (3), le répartiteur (4), le cadre (5a),7) Device according to any one of the preceding claims, characterized in that the diffuser (3), the distributor (4), the frame (5a), 3 Ç le ou les cadres (5b, 5c.) forment une seule pièce.3 Ç the frame (s) (5b, 5c.) Form a single piece. 8) Dispositif selon l'une quelconque des revendications précédentes caractérisé en ce que l'ensemble d'armatures présentant une symétrie (3)(4)(5a)(5b)(5b)(5a)(4)(3) est en contact à chacune de ses extrémités avec l'âme (1 ) conférant un comportement mécanique symétrique à la8) Device according to any one of the preceding claims, characterized in that the set of reinforcements having a symmetry (3) (4) (5a) (5b) (5b) (5a) (4) (3) is in contact at each of its ends with the core (1) giving a symmetrical mechanical behavior to the 4 0 structure mixte. 9) Procédé de montage selon la revendication 8 caractérisé en ce que l'ensemble d'armatures est mis en place entre deux parties d'âme grâce à la déformation élastique de l'ensemble assurant du même coup les doubles contacts diffuseurs (3) âme (1 ). <T 10) Dispositif selon l'une quelconque des revendications précédentes caractérisé en ce que le groupe d'armatures (3) (4) (5a) (5b) est orientable dans n'importe quelle direction de l'espace en fonction des contraintes à équilibrer, plusieurs groupes sont combinables. 1 1 ) Dispositif selon l'une quelconque des revendications précédentes Λ O caractérisé en ce que pour reprendre les contraintes verticales un ensemble d'armatures (4a) est placé horizontalement préférentiel¬ lement aux contacts avec l'âme (1 ) et le diffuseur (3) horizontal, ies armatures (4a) sont filantes, les armatures (4b) sont des cadres ouverts en partie basse englobant les armatures (4a) et filantes (10), frettant la Λ Ç tête de l'âme.4 0 mixed structure. 9) An assembly method according to claim 8 characterized in that the set of frames is placed between two core parts thanks to the elastic deformation of the assembly ensuring at the same time the double diffusing contacts (3) core (1). <T 10) Device according to any one of the preceding claims, characterized in that the group of reinforcements (3) (4) (5a) (5b) is orientable in any direction of space depending on the constraints to be balanced, several groups can be combined. 1 1) Device according to any one of the preceding claims Λ O characterized in that to take up the vertical stresses a set of frames (4a) is placed horizontally preferentially in contact with the core (1) and the diffuser ( 3) horizontal, the frames (4a) are shooting, the frames (4b) are open frames in the lower part including the frames (4a) and shooting (10), fretting the tête Ç head of the soul. 1 2) Dispositif selon l'une quelconque des revendications précédentes caractérisé en ce qu'une partie des armatures constituant les répartiteurs (4) sont placées en contact avec l'âme.1 2) Device according to any one of the preceding claims, characterized in that a part of the frames constituting the distributors (4) are placed in contact with the core. 1 3) Dispositif selon l'une quelconque des revendications précédentes 3. 0 caractérisé en ce que la paroi au sens de l'eurocode 3 est munie de trous ou d'encoches (9) pour recevoir en contact les diffuseurs (3). 1 3) Device according to any one of the preceding claims 3. 0 characterized in that the wall in the sense of the Eurocode 3 is provided with holes or notches (9) for receiving in contact the diffusers (3).
PCT/FR1996/001080 1995-07-13 1996-07-11 Device for joining the web of a metal section to concrete in a composite construction Ceased WO1997003260A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU66170/96A AU6617096A (en) 1995-07-13 1996-07-11 Device for joining the web of a metal section to concrete in a composite construction
EP96925771A EP0888484A1 (en) 1995-07-13 1996-07-11 Device for joining the web of a metal section to concrete in a composite construction

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR95/08697 1995-07-13
FR9508697A FR2736667B1 (en) 1995-07-13 1995-07-13 DEVICE FOR CONNECTING THE CORE OF A METAL PROFILE TO CONCRETE IN A MIXED CONSTRUCTION

Publications (1)

Publication Number Publication Date
WO1997003260A1 true WO1997003260A1 (en) 1997-01-30

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PCT/FR1996/001080 Ceased WO1997003260A1 (en) 1995-07-13 1996-07-11 Device for joining the web of a metal section to concrete in a composite construction

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EP (1) EP0888484A1 (en)
AU (1) AU6617096A (en)
CA (1) CA2227027A1 (en)
FR (1) FR2736667B1 (en)
WO (1) WO1997003260A1 (en)

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1648801A (en) * 1926-02-06 1927-11-08 William A Fritz Method of repairing metal beams
FR716770A (en) * 1931-05-08 1931-12-28 Reinforcement process for metal structures
DE821503C (en) * 1950-05-14 1951-11-19 Fried Krupp Stahlbau Rheinhaus Anchorage between steel girders and prestressed concrete slabs of composite structures
FR1015798A (en) * 1944-06-09 1952-10-23 New floor construction process
FR1332590A (en) * 1962-05-09 1963-07-19 connecting bracket for joist-concrete slab complex
GB1117111A (en) * 1963-12-16 1968-06-12 Christiani And Nielsen Ltd Improvements in or relating to composite steel and concrete structures
GB1431191A (en) * 1973-04-18 1976-04-07 Taylor R Composite and prestressed concrere structures
EP0086966A1 (en) * 1982-02-08 1983-08-31 Irmfried Brendel Reinforced concrete composite beam
EP0133565A2 (en) * 1983-08-12 1985-02-27 Arbed S.A. Composite section
DE3503410A1 (en) * 1984-02-07 1985-08-08 Irmfried Dipl.-Ing. 7847 Badenweiler Brendel Composite steel girder
EP0215148A1 (en) * 1985-09-17 1987-03-25 Wolfhart Dr.-Ing. Andrä Connecting means for a composite concrete supporting construction
EP0369914A1 (en) * 1988-11-16 1990-05-23 Centre D'etudes Techniques De L'equipement De L'est Method for joining a matrix material to a functional support, and devices manufactured according to this method

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1648801A (en) * 1926-02-06 1927-11-08 William A Fritz Method of repairing metal beams
FR716770A (en) * 1931-05-08 1931-12-28 Reinforcement process for metal structures
FR1015798A (en) * 1944-06-09 1952-10-23 New floor construction process
DE821503C (en) * 1950-05-14 1951-11-19 Fried Krupp Stahlbau Rheinhaus Anchorage between steel girders and prestressed concrete slabs of composite structures
FR1332590A (en) * 1962-05-09 1963-07-19 connecting bracket for joist-concrete slab complex
GB1117111A (en) * 1963-12-16 1968-06-12 Christiani And Nielsen Ltd Improvements in or relating to composite steel and concrete structures
GB1431191A (en) * 1973-04-18 1976-04-07 Taylor R Composite and prestressed concrere structures
EP0086966A1 (en) * 1982-02-08 1983-08-31 Irmfried Brendel Reinforced concrete composite beam
EP0133565A2 (en) * 1983-08-12 1985-02-27 Arbed S.A. Composite section
DE3503410A1 (en) * 1984-02-07 1985-08-08 Irmfried Dipl.-Ing. 7847 Badenweiler Brendel Composite steel girder
EP0215148A1 (en) * 1985-09-17 1987-03-25 Wolfhart Dr.-Ing. Andrä Connecting means for a composite concrete supporting construction
EP0369914A1 (en) * 1988-11-16 1990-05-23 Centre D'etudes Techniques De L'equipement De L'est Method for joining a matrix material to a functional support, and devices manufactured according to this method

Also Published As

Publication number Publication date
EP0888484A1 (en) 1999-01-07
FR2736667B1 (en) 1997-08-14
CA2227027A1 (en) 1997-01-30
AU6617096A (en) 1997-02-10
FR2736667A1 (en) 1997-01-17

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