EP0123642A2 - Composite beam - Google Patents

Composite beam Download PDF

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Publication number
EP0123642A2
EP0123642A2 EP84630066A EP84630066A EP0123642A2 EP 0123642 A2 EP0123642 A2 EP 0123642A2 EP 84630066 A EP84630066 A EP 84630066A EP 84630066 A EP84630066 A EP 84630066A EP 0123642 A2 EP0123642 A2 EP 0123642A2
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EP
European Patent Office
Prior art keywords
concrete
composite
web
profiles
profile
Prior art date
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Granted
Application number
EP84630066A
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German (de)
French (fr)
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EP0123642B1 (en
EP0123642A3 (en
Inventor
Jean-Baptiste Schleich
Erwin Lahoda
Jean-Paul Lickes
Emile Reuter
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Arcelor Luxembourg SA
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Arbed SA
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Priority to AT84630066T priority Critical patent/ATE39723T1/en
Publication of EP0123642A2 publication Critical patent/EP0123642A2/en
Publication of EP0123642A3 publication Critical patent/EP0123642A3/en
Application granted granted Critical
Publication of EP0123642B1 publication Critical patent/EP0123642B1/en
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    • 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

Definitions

  • the invention relates to composite girders, in particular for supports, formed from concrete and at least one profile girder, the open cross-sectional spaces being largely filled with concrete and the outer surfaces of the flanges being exposed, i.e. are not provided with a layer of concrete.
  • Such supports are used in the construction of houses, halls, warehouses, etc.
  • the chamber concrete is non-positively connected to the steel profile cross section by means of welded-on compound on the inside of the profile in order to avoid detachment of the chamber concrete both at room temperature and at fire temperature.
  • Steel profile cross-section, concrete cross-section and reinforcement steel cross-section contribute proportionately according to their surface area and their temperature-dependent strength.
  • the temperature rises and the load is redistributed from the steel section to the reinforced concrete cross cut mainly due to the softening of the flanges, which make up the largest part of the steel profile.
  • Another disadvantage of this construction is that the reinforcement in the concrete is not optimally arranged with regard to the temperature distribution that arises in the beam in the event of a fire.
  • the stiffness of the support around the weak axis is reduced as a result of the flanges' softening.
  • the composite girder according to the invention in which at least one further profile girder is arranged in the concrete and is connected to the web (s) of the profile girder (s) whose outer flange surface is not provided with a concrete cover .
  • Advantageous embodiments of the invention are given in the subclaims.
  • the composite girders according to the invention which are made up of common hot-rolled girders, but can also consist of welded profiles, have large masses of steel in the fire-protected area.
  • the thermal transition from the outer flanges exposed to fire to the beams embedded in the concrete is poor.
  • the bond between the main profile and the reinforced concrete is guaranteed by welding in a roll carrier cut.
  • These roller supports or cuts are made in thermally protected zones, which provides a high load-bearing capacity under fire.
  • the manufacturing process of the beam combination by welding is cheap. It should be particularly emphasized that the carrier according to the invention exhibits excellent behavior in earthquakes.
  • FIG. 1 shows a quarter of the cross section of a composite beam according to DE-OS 28 29 864 described above.
  • a flange half 11 and part of the web 12 can be seen.
  • the figure shows the course of the isotherms (in degrees Celsius) in such a wide-flange composite carrier after exposure to fire for 60 minutes. It can be seen that the design of this composite beam does not allow large amounts of steel to be built into the cold zones of the concrete.
  • a maximum of three percent reinforcement of the steel-concrete cross-section may be charged in the construction industry.
  • the composite girder is ideal for factory production, so that only ready-to-assemble components have to be used on the construction site.
  • the concrete reinforcement (preferably structural steel mat) is placed on the (upper) T-profile using spacers and the concrete is poured into the open profile chamber, whereby running out at both open ends is prevented by means of formwork.
  • the concrete is advantageously vibrated. After the concrete has solidified, the composite girder is turned over and the same process steps are carried out again.
  • the composite girder shown in FIG. 3 has two H-profiles 34 and 35 instead of the T-profiles. Compared to FIG. 2, this primarily entails an increase in the rigidity of the beam around the weak axis. Corresponding elements are identified in FIGS. 2 and 3 with identical reference symbols. It should be noted that here the connection of the H profiles 34 and 35 to the web 22 can also be achieved by means of screwing.
  • FIG. 4 shows two I-profiles, the flanges 44 and 45 of which are exposed and delimit the outer cross section of the composite beam.
  • the two I-profiles are connected to one another via their webs 41 and 42 by means of an H-profile 46.
  • the free space between the different profiles is filled with concrete 43.
  • the concrete reinforcement baskets 47 which can also be used in this embodiment, are welded to the profiles.
  • the connection between profile and reinforced concrete can also be made using dowels.
  • colloidal concrete or fiber-reinforced concrete instead of normal concrete.
  • the metal parts H or I profiles lying on the edge of the composite beam belong. You can also imagine that these parts come from T-profiles.
  • the structure shown in FIG. 2 can be constructed by means of a centrally arranged H-profile, on the web of which two T-profiles are welded, the flanges of which in this case are on the outside.

Abstract

A composite structural element has a main steel beam having a web and at least two flanges extending therefrom, having oppositely directed outer faces, having outer edges generally defining a plane and defining with the web a recess open away from the web between the outer edges. A mass of concrete fills the recess substantially to the plane, the outer flange faces being exposed and substantially free of concrete. Another profiled steel beam is fixed to the web of the main beam and wholly imbedded in and covered by the concrete mass. Typically the main beam is an H- or I-beam and has two such channels provided with such other beams and filled with respective such masses. The other beams can be of T-section or each other beam can be an I- or H-beam. In addition it is possible to provide longitudinally extending steel reinforcing bars imbedded in the concrete mass. Steel fibers can also be imbedded as reinforcement in the concrete mass, and this mass can be at least partially of colloid concrete.

Description

Die Erfindung betrifft Verbundträger, insbesondere für Stützen, gebildet aus Beton und wenigstens einem Profilträger, wobei die offenen Querschnittsräume grösstenteils mit Beton ausgefüllt sind und die Aussenflächen der Flansche freiliegen d.h. nicht mit einer Betonschicht versehen sind. Derartige Träger finden beim Bau von Häusern, Hallen, Lagern, usw. Verwendung.The invention relates to composite girders, in particular for supports, formed from concrete and at least one profile girder, the open cross-sectional spaces being largely filled with concrete and the outer surfaces of the flanges being exposed, i.e. are not provided with a layer of concrete. Such supports are used in the construction of houses, halls, warehouses, etc.

Früher war es üblich, die Querschnitte der Profile eines Stahlskeletts nach den statischen Lasten bei Raumtemperatur zu bemessen und die stets bei Geschossbauten erforderlichen Brandschutzanforderungen durch nachträgliche kostspielige Ummantelung der Profile zu erfüllen. Neuerdings geht man dazu über, feuerbeständige Verbundträger zu verwenden, welche nicht bekleidet sind. So beschreibt die DE-OS 28 29 864 einen 'Verbundträger, der auf den Flanschaussenseiten, d.h. ausserhalb der Profilumrisslinien keinen Beton aufweist. Dieser Profilträger besitzt die Eigenart, dass am Steg befestigte Verbundmittel mit dem lediglich die offenen Querschnittsräume ausfüllenden Beton verbunden sind, und dass der Beton mit Längsbewehrungsstäben versehen ist, die durch die Verbundmittel gehalten sind. Der Kammerbeton wird durch auf die Innenseite des Profils aufgeschweisste Verbundmittel mit dem Stahlprofilquerschnitt kraftschlüssig verbunden, um sowohl bei Raumtemperatur als auch bei Brandtemperatur ein Loslösen des Kammerbetons zu vermeiden. Stahlprofilquerschnitt, Betonquerschnitt und Bewehrungsstahlquerschnitt tragen entsprechend ihrer Flächenanteile und ihrer temperaturabhängigen Festigkeiten anteilig mit. Im Brandfall erfolgt mit dem Temperaturanstieg eine fortwährende Lastumlagerung vom Stahlprofilquerschnitt auf den Stahlbetonquerschnitt vor allem bedingt durch die Entfestigung der Flansche, die den grössten Teil des Stahlprofils ausmachen. Von weiterem Nachteil ist bei dieser Konstruktion, dass die Bewehrung im Beton nicht optimal angeordnet ist, was die im Brandfall im Träger entstehende Temperaturverteilung anbelangt. Ausserdem sinkt im Brandfall die Steifigkeit der Stütze um die schwache Achse, infolge der Entfestigung der Flansche.In the past it was common to measure the cross-sections of the profiles of a steel skeleton according to the static loads at room temperature and to meet the fire protection requirements that are always required in multi-storey buildings by subsequently covering the profiles in a costly manner. Recently there has been a move to use fire-resistant composite beams which are not clad. For example, DE-OS 28 29 864 describes a 'composite beam which has no concrete on the outside of the flange, ie outside the profile contour lines. This profile beam has the peculiarity that the composite means attached to the web are connected to the concrete that only fills the open cross-sectional spaces, and that the concrete is provided with longitudinal reinforcement bars that are held by the composite means. The chamber concrete is non-positively connected to the steel profile cross section by means of welded-on compound on the inside of the profile in order to avoid detachment of the chamber concrete both at room temperature and at fire temperature. Steel profile cross-section, concrete cross-section and reinforcement steel cross-section contribute proportionately according to their surface area and their temperature-dependent strength. In the event of a fire, the temperature rises and the load is redistributed from the steel section to the reinforced concrete cross cut mainly due to the softening of the flanges, which make up the largest part of the steel profile. Another disadvantage of this construction is that the reinforcement in the concrete is not optimally arranged with regard to the temperature distribution that arises in the beam in the event of a fire. In addition, in the event of a fire, the stiffness of the support around the weak axis is reduced as a result of the flanges' softening.

Der Erfindung liegt die Aufgabe zugrunde, einen Verbundträger der eingangs genannten Art zu schaffen, der die oben erwähnten Nachteile vermeidet und bei annähernd gleichem Querschnitt sich durch eine erhöhte Fähigkeit zur Aufnahme von Druck, Biegungsbeanspruchbarkeit und Feuerfestigkeit auszeichnet.The invention has for its object to provide a composite beam of the type mentioned, which avoids the disadvantages mentioned above and is characterized by an increased ability to absorb pressure, bending strength and fire resistance with approximately the same cross section.

Diese Aufgabe wird durch den erfindungsgemässen Verbundträger gelöst, bei dem in dem Beton wenigstens ein weiterer Profilträger angeordnet ist, der mit dem/den Steg(en) des/der Profilträger(s) verbunden ist, dessen/deren Flanschenaussenfläche nicht mit einer Betonüberdeckung versehen ist. Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen wiedergegeben.This object is achieved by the composite girder according to the invention, in which at least one further profile girder is arranged in the concrete and is connected to the web (s) of the profile girder (s) whose outer flange surface is not provided with a concrete cover . Advantageous embodiments of the invention are given in the subclaims.

Die erfindungsgemässen Verbundträger, die aus gängigen warmgewalzten Trägern aufgebaut sind, jedoch auch aus Schweissprofilen bestehen können, weisen grosse Stahlmassen im feuergeschützten Bereich auf. Dazu kommt, dass bedingt durch die Nahtstellen, der thermische Uebergang von den äusseren, dem Feuer ausgesetzten Flanschen zu den im Beton eingebetteten Trägern schlecht ist. Der Verbund zwischen dem Hauptprofil und dem Stahlbeton wird durch Einschweissen eines Walzträgerschnittes gewährleistet. Diese Walzträger bzw. Schnitte werden in thermisch geschützten Zonen angebracht, was eine hohe Tragfähigkeit unter Brandbeanspruchung erbringt. Das Herstellungsverfahren der Träger-Kombination durch Schweissen ist billig. Besonders hervorzustreichen ist, dass der erfindungsgemässe Träger ein hervorragendes Verhalten bei Erdbeben vorweist. Er besteht aus sowohl viel Stahl - grosse plastische Verformbarkeit - als auch viel Beton - hohe innere Reibung d.h. starke Dämpfung. Hinzu kommen die grundverschiedenen Schwingungskonstanten von Stahl und Beton, sodass eine Resonanz des Trägers bei aufeinanderfolgenden Erdbebenstössen wirkungsvoll unterbunden wird.The composite girders according to the invention, which are made up of common hot-rolled girders, but can also consist of welded profiles, have large masses of steel in the fire-protected area. In addition, due to the seams, the thermal transition from the outer flanges exposed to fire to the beams embedded in the concrete is poor. The bond between the main profile and the reinforced concrete is guaranteed by welding in a roll carrier cut. These roller supports or cuts are made in thermally protected zones, which provides a high load-bearing capacity under fire. The manufacturing process of the beam combination by welding is cheap. It should be particularly emphasized that the carrier according to the invention exhibits excellent behavior in earthquakes. It consists of a lot of steel - great plastic deformability - as well as a lot of concrete - high internal friction ie strong damping. Added to this are the fundamentally different vibration constants of steel and concrete, so that resonance of the wearer in the event of successive earthquake impacts is effectively prevented.

Im folgenden wird die Erfindung anhand von Zeichnungen näher erläutert. Es zeigen :

  • - die Figur 1 den Temperaturverlauf in einem Querschnitt-Teil eines bekannten Trägers unter Feuereinwirkung;
  • - die Figuren 2-4 Querschitte durch verschiedene Ausbildungsformen von erfindungsgemässen Verbundträger.
The invention is explained in more detail below with reference to drawings. Show it :
  • - Figure 1 shows the temperature profile in a cross-sectional part of a known support under the action of fire;
  • FIGS. 2-4 cross-sections through various forms of construction of composite beams according to the invention.

Auf Figur 1 ist ein Viertel des Querschnitts eines Verbundträgers gemäss der oben beschriebenen DE-OS 28 29 864 dargestellt. Man erkennt ausser der Betonfüllung 13 und der Längsbewehrung 14 eine Flanschhälfte 11 und einen Teil des Steges 12. In der Figur wurde der Verlauf der Isothermen (in Grad Celsius) in einem solchen Breitflansch-Verbundträger nach einer Feuereinwirkung von 60 Minuten aufgetragen. Man erkennt, dass die genannte Konzeption dieses Verbundträgers es nicht erlaubt grössere Mengen Stahl in die Kaltzonen des Betons einzubauen. Hinzu kommt dass im Bauwesen maximal ein dreiprozentiger Bewehrungsgrad des Stahl-Betonquerschnitts in Rechnung gestellt werden darf.FIG. 1 shows a quarter of the cross section of a composite beam according to DE-OS 28 29 864 described above. In addition to the concrete filling 13 and the longitudinal reinforcement 14, a flange half 11 and part of the web 12 can be seen. The figure shows the course of the isotherms (in degrees Celsius) in such a wide-flange composite carrier after exposure to fire for 60 minutes. It can be seen that the design of this composite beam does not allow large amounts of steel to be built into the cold zones of the concrete. In addition, a maximum of three percent reinforcement of the steel-concrete cross-section may be charged in the construction industry.

In Figur 2 erkennt man einen Profilträger dessen Kammern mit Beton 23 ausgefüllt sind. Auf beiden Seiten des Steges 22 sind T-Profile 24 und 25 mittels Schweissen angebracht. Die Verwendung von breiten T-Profilen erschwert eventuel das Hervorbringen der Schweissstellen 28 und ist im Hinblick auf das Temperaturprofil unter Feuereinwirkung wenig interessant. Die Flansche der T-Profile sind vorteilhafterweise mit abgewinkelten Baustahlmatten 26 und 27 von Betonbewehrungsstahl umgeben. Diese verhindern wirkungsvoll ein durch Hitze hervorgerufenes Abplatzen des Beton. Zu bemerken ist, dass die Anschlüsse von Querträgern sich auf einfache Weise, z.B. mittels auf den Flanschen der T-Profile angeschweissten Blechen, herstellen lassen. Die vom Blech im Beton zu überbrückende Distanz ist klein und die über das Blech eingeleitete Kraft wird über das T-Profil in dem Verbundträger verteilt.In Figure 2 you can see a profile beam whose chambers are filled with concrete 23. T-profiles 24 and 25 are attached to both sides of the web 22 by means of welding. The use of wide T-profiles may make it difficult to produce the welds 28 and is of little interest with regard to the temperature profile under the action of fire. The flanges of the T-profiles are advantageously surrounded by angled reinforcing steel mats 26 and 27 of reinforcing steel. These effectively prevent the concrete from flaking off due to heat. It should be noted that the connections of cross beams are simple, e.g. can be produced using sheet metal welded onto the flanges of the T-profiles. The distance to be bridged by the sheet metal in the concrete is small and the force introduced via the sheet metal is distributed in the composite beam via the T-profile.

Der Verbundträger eignet sich hervorragend zur werksseitigen Herstellung, so dass auf der Baustelle nur mit montagefertigen Bauteilen gearbeitet werden muss. Hierbei kann man folgendermassen vorgehen: Nach dem Anschweissen der T-Profile 24 und 25 an den Steg 22 wird der Träger auf den Boden gelegt, sodass beide Flansche aufliegen. Die Betonbewehrung (vorzugsweise Baustahlmatte) wird über Distanzhalter auf das (obere) T-Profil gelegt und der Beton wird in die offene Profilkammer hineingegossen, wobei ein Herauslaufen an beiden offenen Enden mittels Schalung verhindert wird. Um die Bildung von betonfreien Räumen, insbesondere unter dem Flansch des T-Profils zu vermeiden, wird vorteilhafterweise der Beton vibriert. Nach Verfestigung des Betons wird der Verbundträger umgedreht und die gleichen Verfahrensschritte werden nochmals durchgeführt.The composite girder is ideal for factory production, so that only ready-to-assemble components have to be used on the construction site. Here you can proceed as follows: After welding the T-profiles 24 and 25 to the web 22, the support is placed on the floor so that both flanges lie on it. The concrete reinforcement (preferably structural steel mat) is placed on the (upper) T-profile using spacers and the concrete is poured into the open profile chamber, whereby running out at both open ends is prevented by means of formwork. In order to avoid the formation of concrete-free spaces, especially under the flange of the T-profile, the concrete is advantageously vibrated. After the concrete has solidified, the composite girder is turned over and the same process steps are carried out again.

Der auf Figur 3 dargestelle Verbundträger weist anstelle der T-Profile zwei H-Profile 34 und 35 auf. Im Vergleich zur Figur 2 bringt dies vor allem eine Steigerung der Steifigkeit des Trägers um die schwache Achse mit sich. Entsprechende Elemente sind auf den Figuren 2 und 3 mit identischen Bezugszeichen gekennzeichnet. Zu bemerken ist, dass man hier die Verbindung der H-Profile 34 und 35 mit dem Steg 22 auch mittels Verschraubung herbeiführen kann.The composite girder shown in FIG. 3 has two H-profiles 34 and 35 instead of the T-profiles. Compared to FIG. 2, this primarily entails an increase in the rigidity of the beam around the weak axis. Corresponding elements are identified in FIGS. 2 and 3 with identical reference symbols. It should be noted that here the connection of the H profiles 34 and 35 to the web 22 can also be achieved by means of screwing.

Figur 4 zeigt zwei I-Profile deren Flansche 44 und 45 freiliegen und den äusseren Querschnitt des Verbundträgers umgrenzen. Die beiden I-Profile sind über ihre Stege 41 und 42 mittels eines H-Profils 46 miteinander verbunden. Der freie Raum zwischen den verschiedenen Profilen ist mit Beton 43 gefüllt. Die Betonbewehrungskörbe 47, welche auch bei dieser Ausführungsform Verwendung finden können, sind an die Profile angeschweisst. Der Verbund zwischen Profil und Stahlbeton kann auch mittels Dübel hergestellt werden.FIG. 4 shows two I-profiles, the flanges 44 and 45 of which are exposed and delimit the outer cross section of the composite beam. The two I-profiles are connected to one another via their webs 41 and 42 by means of an H-profile 46. The free space between the different profiles is filled with concrete 43. The concrete reinforcement baskets 47, which can also be used in this embodiment, are welded to the profiles. The connection between profile and reinforced concrete can also be made using dowels.

Will man die Einsatz-Menge von Bewehrungsstahl vermindern oder ganz vermeiden, empfiehlt es sich statt normalem Beton, Kolloid-Beton oder faserbewehrten Beton zu verwenden. Auch ist es möglich statt einem, mehrere Profile an die Stegseiten des oder der Profilträger zu befestigen, deren Flanschaussenseiten am Rand des Verbundträgers liegen. Ein Anbringen von Profilträgern an den Innenseiten dieser Flansche ist wegen der Temperaturverteilung im Verbundträger unter Hitzeeinwirkung wenig interessant und führt ausserdem zu Befestigungsproblemen. In den beschriebenen Ausbildungsformen der verschiedenen Verbundträger gehören die am Rand des Verbundträgers liegende Metallteile H- oder I-Profilen. Man kann sich auch vorstellen dass diese Teile von T-Profilen stammen. So kann man beispielsweise die auf Fig. 2 dargestellte Struktur mittels eines mittig angeordneten H-Profils aufbauen, an dessen Steg zwei T-Profile angeschweisst sind, deren Flansche in diesem Fall aussenliegen.If you want to reduce or completely avoid the use of reinforcing steel, it is recommended to use colloidal concrete or fiber-reinforced concrete instead of normal concrete. Instead of one, it is also possible to attach several profiles to the web sides of the profile carrier or carriers, whose flange outer sides are on the edge of the composite beam. Attaching profile beams to the inside of these flanges is of little interest due to the temperature distribution in the composite beam under the influence of heat and also leads to fastening problems. In the described forms of training of the various composite beams, the metal parts H or I profiles lying on the edge of the composite beam belong. You can also imagine that these parts come from T-profiles. For example, the structure shown in FIG. 2 can be constructed by means of a centrally arranged H-profile, on the web of which two T-profiles are welded, the flanges of which in this case are on the outside.

Claims (11)

1. Verbundträger, insbesondere für Stützen, gebildet aus Beton und wenigstens einem Profilträger, wobei die offenen Querschnittsräume grösstenteils mit Beton ausgefüllt sind, während die Aussenflächen der Flansche keine Betonüberdeckung aufweisen, dadurch gekennzeichnet, dass in dem Beton wenigstens ein weiterer Profilträger angeordnet ist, der mit dem/den Steg(en) des/der Profilträger(s) verbunden ist, dessen/deren Flansch-Aussenflächen keine Betonüberdeckung aufweisen.1. Composite girder, in particular for supports, formed from concrete and at least one profile girder, the open cross-sectional spaces being largely filled with concrete, while the outer surfaces of the flanges have no concrete cover, characterized in that at least one further profile girder is arranged in the concrete is connected to the web (s) of the profile beam (s) whose flange outer surfaces have no concrete cover. 2. Verbundträger gemäss Anspruch 1, dadurch gekennzeichnet, dass er einen H-Träger dessen Flanschenaussenseiten nicht mit Beton versehen sind, umfasst.2. Composite beam according to claim 1, characterized in that it comprises an H-beam whose flange outer sides are not provided with concrete. 3. Verbundträger gemäss Anspruch 1, dadurch gekennzeichnet, dass er zwei I-Träger deren Flanschenaussenseiten nicht mit Beton versehen sind, umfasst.3. Composite girder according to claim 1, characterized in that it comprises two I-girders whose outer flanges are not provided with concrete. 4. Verbundträger gemäss einem der Ansprüche 1-3, dadurch gekennzeichnet, dass die weiteren im Beton angeordneten Träger I-Profile sind.4. Composite beam according to one of claims 1-3, characterized in that the further beams arranged in the concrete are I-profiles. 5. Verbundträger gemäss einem der Ansprüche 1-3, dadurch gekennzeichnet, dass die weiteren im Beton angeordneten Träger H-Profile sind.5. Composite beam according to one of claims 1-3, characterized in that the further beams arranged in the concrete are H-profiles. 6. Verbundträger gemäss einem der Ansprüche 1-3, dadurch gekennzeichnet, dass die weiteren im Beton angeordneten Träger T-Profile sind.6. Composite beam according to one of claims 1-3, characterized in that the further beams arranged in the concrete are T-profiles. 7. Verbundträger gemäss einem der Ansprüche 1-6, dadurch gekennzeichnet, dass der Beton mit Betonstahl bewehrt ist.7. Composite beam according to one of claims 1-6, characterized in that the concrete is reinforced with reinforcing steel. 8. Verbundträger gemäss einem der Ansprüche 1-6, dadurch gekennzeichnet, dass der Beton mit Fasermaterial, insbesondere Stahlfaser, bewehrt ist.8. Composite beam according to one of claims 1-6, characterized in that the concrete is reinforced with fiber material, in particular steel fiber. 9. Verbundträger gemäss einem der Ansprüche 1-6, dadurch gekennzeichnet, dass die Betonmasse wenigstens teilweise aus Kolloid-Beton besteht.9. Composite beam according to one of claims 1-6, characterized in that the concrete mass consists at least partially of colloidal concrete. 10. Verbundträger gemäss einem der Ansprüche 1-6, dadurch gekennzeichnet, dass die verschiedenen Träger wenigstens teilweise über Schweisstellen miteinander verbunden sind.10. Composite carrier according to one of claims 1-6, characterized in that the different carriers are at least partially connected to one another via welding points. 11. Verbundträger gemäss einem der Ansprüche 1-6, dadurch gekennzeichnet, dass die Träger wenigstens teilweise mittels Verschraubung miteinander verbunden sind.11. Composite carrier according to one of claims 1-6, characterized in that the carriers are at least partially connected to one another by means of screwing.
EP84630066A 1983-04-25 1984-04-20 Composite beam Expired EP0123642B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84630066T ATE39723T1 (en) 1983-04-25 1984-04-20 COMPOSITE CARRIER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU84772 1983-04-25
LU84772A LU84772A1 (en) 1983-04-25 1983-04-25 ASSOCIATES

Publications (3)

Publication Number Publication Date
EP0123642A2 true EP0123642A2 (en) 1984-10-31
EP0123642A3 EP0123642A3 (en) 1985-09-25
EP0123642B1 EP0123642B1 (en) 1989-01-04

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EP84630066A Expired EP0123642B1 (en) 1983-04-25 1984-04-20 Composite beam

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US (1) US4571913A (en)
EP (1) EP0123642B1 (en)
AT (1) ATE39723T1 (en)
CA (1) CA1222642A (en)
DE (1) DE3475929D1 (en)
LU (1) LU84772A1 (en)

Cited By (8)

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EP0189785A2 (en) * 1985-02-01 1986-08-06 Arbed S.A. Girder-column connection
EP0212593A2 (en) * 1985-08-30 1987-03-04 Arbed S.A. Composite beam
WO1994023147A2 (en) * 1993-04-01 1994-10-13 Dae Nung Industrial Co., Ltd. Method to construct the prestressed composite beam structure and the prestressed composite beam for a continuous beam thereof
CN103437498A (en) * 2013-09-12 2013-12-11 南京工业大学 Reinforced web-punched profiled steel plate combination beam with continuous hanging bars and manufacturing and mounting method of combination beam
CN103498532A (en) * 2013-10-22 2014-01-08 湖北弘毅建设有限公司 Prestressed profile steel base type T-shaped steel reinforced concrete composite beam
CN103498530A (en) * 2013-10-22 2014-01-08 湖北弘毅建设有限公司 Prestressed tooth hole-shaped web T-shaped steel reinforced concrete composite beam
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Cited By (15)

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Publication number Priority date Publication date Assignee Title
DE3525934A1 (en) * 1984-07-19 1986-01-30 Josef Steyr Feichtmayr Elongated supporting element for supporting structures and floor made using such supporting elements
AT386237B (en) * 1984-07-19 1988-07-25 Feichtmayr Josef ELONG STRETCH SUPPORT ELEMENT FOR SUPPORT CONSTRUCTIONS AND CEILING MADE WITH SUCH SUPPORT ELEMENTS
EP0189785A2 (en) * 1985-02-01 1986-08-06 Arbed S.A. Girder-column connection
EP0189785A3 (en) * 1985-02-01 1989-03-22 Arbed S.A. Transom-pillar connection
EP0212593A2 (en) * 1985-08-30 1987-03-04 Arbed S.A. Composite beam
EP0212593A3 (en) * 1985-08-30 1989-03-15 Arbed S.A. Composite beam
WO1994023147A2 (en) * 1993-04-01 1994-10-13 Dae Nung Industrial Co., Ltd. Method to construct the prestressed composite beam structure and the prestressed composite beam for a continuous beam thereof
WO1994023147A3 (en) * 1993-04-01 1995-04-13 Dae Nung Ind Co Ltd Method to construct the prestressed composite beam structure and the prestressed composite beam for a continuous beam thereof
AU679502B2 (en) * 1993-04-01 1997-07-03 Dae Nung Construction Co., Ltd. Method to construct the prestressed composite beam structure and the prestressed composite beam for a continuous beam thereof
US5644890A (en) * 1993-04-01 1997-07-08 Dae Nung Industrial Co., Ltd. Method to construct the prestressed composite beam structure and the prestressed composite beam for a continuous beam thereof
CN103437498A (en) * 2013-09-12 2013-12-11 南京工业大学 Reinforced web-punched profiled steel plate combination beam with continuous hanging bars and manufacturing and mounting method of combination beam
CN103437498B (en) * 2013-09-12 2016-04-20 南京工业大学 With hanging muscle reinforcement holes in soffit profiled sheet compound beam continuously and preparing mounting method
CN103498532A (en) * 2013-10-22 2014-01-08 湖北弘毅建设有限公司 Prestressed profile steel base type T-shaped steel reinforced concrete composite beam
CN103498530A (en) * 2013-10-22 2014-01-08 湖北弘毅建设有限公司 Prestressed tooth hole-shaped web T-shaped steel reinforced concrete composite beam
DE102019000116A1 (en) * 2019-01-11 2020-07-16 HIB Huber Integral Bau GmbH Structural steel components

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CA1222642A (en) 1987-06-09
DE3475929D1 (en) 1989-02-09
EP0123642B1 (en) 1989-01-04
LU84772A1 (en) 1984-11-28
EP0123642A3 (en) 1985-09-25
US4571913A (en) 1986-02-25
ATE39723T1 (en) 1989-01-15

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