DD299974A5

DD299974A5 - Structure and method for producing a composite carrier

Info

Publication number: DD299974A5
Application number: DD339481A
Authority: DD
Original assignee: Thor
Priority date: 1989-04-05
Filing date: 1990-04-05
Publication date: 1992-05-14
Also published as: ATE115667T1; SE8901211L; AU5444990A; FI914641A0; EP0473609B1; SE466112B; DE69015180D1; EP0473609A1; WO1990012174A1; SE8901211D0; CS172390A2

Abstract

The invention relates to an improvement in composite columns of the kind which comprise a core in the form of a steel post (2) and a steel tube (3) which encircles the post, the column components being intended to coact statically with one another and with concrete (4) cast therebetween. This static coaction is achieved with the aid of a jointing and position-fixating sleeve (8) which incorporates a ring (9) having extending therefrom a number of plates (10). The steel post (2) is permitted to extend through the sleeve (8), at least at one end of the steel tube (3), and to project a given distance beyond the steel tube (3). Alternatively, the steel post is permitted to extend only partially into the sleeve (8) and to terminate within the steel tube (3) at a distance which is equal to or shorter than the first mentioned distance from the mouth of aforementioned one end.

Description

Fig. 1: den partiellen, schsmatischen Längsschnitt durch einen Verbundträger in der erfindungsgemäßen Ausführungsform und ein näher bestimmtes Fußende des Verbundträgers ,1: the partial, Schsmatic longitudinal section through a composite support in the embodiment according to the invention and a specific foot of the composite support,

Fig. 2: the top view of the composite carrier shown in Fig. 1 3: the partial, schematic longitudinal section of the head end of the composite carrier shown in Fig. 1

Fig. 4: die schematische Seitenansicht der Herstellung eines Verbundträgers und die genauere Darstellung der Montage einer als Fuß- und Kopfring dienenden Verbindungs- und Lagefixierungshülse am jeweiligen Ende eines KreuzprofilsFig. 4: the schematic side view of the preparation of a composite support and the more detailed representation of the assembly of serving as a foot and head ring connection and Lagefixierungshülse at the respective end of a cross profile

Fig. 5: the schematic longitudinal section for carrying out the connection of an upper composite support with one underneath

befindlichen, schon fertig montierten Verbundträger nach Fertigstellung einer Balkenschicht, die aus auf dem Kopfring des untprnn Trögers ruhenden Druchlaufträger besteht und nach ADschluß des Betonvergusses des Stahlrohres.After completion of a beam layer consisting of resting on the head ring of untprnn trögers Druchlaufträger and after ADschluß the Betonvergusses the steel pipe.

Wie in Fig. 1 und 2 näher gezeigt wird, besteht ein Verbundträger 1 laut angeführtem Fertigungsbeispiel erfindungsgemäß aus einem Kern in Form eines Balkenprofils aus Stahl, z. B. einem KreuzprcfM 2, das von einem Stahlrohr 3 umgebon ist. Diese Teile sind nach dem Verguß so angeordnet, daß sich untereinander sowie auch mit dem dazwischen befindlichen Betonverguß 4 ein statischer Verbund ergibt. Das Gießen des Betons erfolgt entweder separat, im Zusammenhang mit dem Gießen einer Balkenschicht 5 (Abb. 5) oder im Zusammenhang mit der Montage einer vorgefertigten Balkenschicht. Weiterhin verfügt der Verbundträger 1 über zwei Endstücke, das Fußende 6 und das Kopfende 7, eine Verbindungs- und Lagefixierungshülse 8, i'urch die erwähnter statischer Verbund zustandekommt, und er besteht aus einem Ring 9 mit einem Außendurchmesser, der etwas Meiner sein muß als der Innendurchmesser des Stahlrohres 3 und dessen Innendurchmesser höchstens genauso groß bzw. klt-.ier als der Innendurchmesser des Stahlrohres 3 ist. Vom Ring 9 gehen in einem bestimmten Abstand von der Mitte des Ringes 9 eine Anzahl, vorzugsweise acht, paarweise parallel angeordnete Bleche 10 aus. Diese Bleche 10 erstrecken sich in Längsrichtung des Ringes 9, und ragen dort, wo der Fußring gebildet wird, ein wenig, z. B. ca. 10 mm, über die eine, in montiertem Zustand nach außen gerichtete Außenkante 11 des Ringes 9 hinaus, während die Bleche 10 über die andere, in montiertem Zustand nach innen gerichtete Außenkante 12, wesentlich weiter hinausragen, z. B. ca. 80-100mm, um ein korrektes Anschweißen der längs- und/oder querverlaufenden, an den Stegen 13 des Kreuzprofils 2 anliegenden Endkanten 14 mittelsAs shown in more detail in FIGS. 1 and 2, according to the present invention, a composite support 1 according to the invention consists of a core in the form of a beam profile made of steel, z. B. a KreuzprcfM 2, which is umon of a steel pipe 3. These parts are arranged after casting so that there is a static bond with each other and with the intervening Betonverguß 4 therebetween. The casting of the concrete takes place either separately, in connection with the casting of a beam layer 5 (FIG. 5) or in connection with the assembly of a prefabricated beam layer. Furthermore, the composite beam 1 has two end pieces, the bottom end 6 and the top end 7, a connection and position fixing sleeve 8, i'urch by the mentioned static composite comes, and it consists of a ring 9 with an outer diameter, which must be something like mine the inner diameter of the steel pipe 3 and its inner diameter is at most equal to or smaller than the inner diameter of the steel pipe 3. From the ring 9 go at a certain distance from the center of the ring 9 a number, preferably eight, in pairs arranged in parallel sheets 10. These sheets 10 extend in the longitudinal direction of the ring 9, and project where the foot ring is formed, a little, z. B. about 10 mm, on the one, in the assembled state outwardly directed outer edge 11 of the ring 9 addition, while the sheets 10 on the other, in the assembled state inwardly directed outer edge 12, much further protrude, z. B. about 80-100mm to a correct welding of the longitudinal and / or transverse, applied to the webs 13 of the cross profile 2 end edges 14 by means

einer Schweißnaht 15 zu ermöglichen. Das Stahlrohr 3 reicht zum Anbringen und zur Lagefixierung, z. B. durch Schweißen, an den entsprechenden Ring 9 heran. Die genaue Lagefixierung des Kreuzprofils 2 innerhalb des Stahlrohres 3 erfolgt mit Hilfe der Bleche 10 am Fuß- und Kopfring 9 sowohl vor als auch im Zusammenhang mit dem Betonverguß.to allow a weld 15. The steel pipe 3 is sufficient for attaching and fixing the position, for. B. by welding, to the corresponding ring 9 zoom. The exact positional fixation of the cross profile 2 within the steel tube 3 is carried out with the help of the sheets 10 on the foot and head ring 9 both before and in connection with the concrete grout.

Die Bleche 10 der Verbindungs- und Lagefixierungshülse 8 erstrecken sich, wie aus Fig. 2 am besten ersichtlich, paarweise und parallel zueinander in Richtung Mitte von Hülse 8 und Ring 9, Ihr Abstand untereinander entspricht der Dicke der tatsächlichen Abmessungen der Schenkel 16 des verwendeten Kreuzprofils 2. Die Bleche 10 können mit einem Einschnitt 17 versehen sein, so daß die Bleche 10 leichter zur Anpassung an ein Kreuzprofil 2 mit kleineren Abmessungen umgeformt werden können. Die Verbindi'ngs- und Lagefixierungshülsen 8 sind an den Endabschnitten des Stahlrohres 3 mit dem mittels Schweißnaht 15 an den Blechen 10 befestigten, in Längsrichtung des Stahlrohres 3 zur Bildung eines Ober- und Unterendes lageverschobenen Kreuzprofil 2 montiert, wobei sich das Unterende in der gezeigten Ausführung am Fußende β des Trägers 1 und das Oberende am Kopfende 7 des Trägers 1 befindet.The sheets 10 of the connection and position fixing sleeve 8 extend, as best seen in Fig. 2, in pairs and parallel to each other in the middle of the sleeve 8 and ring 9, their distance from each other corresponds to the thickness of the actual dimensions of the legs 16 of the cross profile used 2. The sheets 10 may be provided with an incision 17, so that the sheets 10 can be easily converted to adapt to a cross-section 2 with smaller dimensions. The Verbindi'ngs- and Lagefixierungshülsen 8 are mounted at the end portions of the steel pipe 3 with the welded seam 15 to the sheets 10, in the longitudinal direction of the steel tube 3 to form an upper and lower end position shifted cross-section 2, wherein the lower end in the shown Execution at the foot of the carrier β 1 and the upper end of the head 7 of the carrier 1 is located.

Wie aus Fig.3 und S ersichtlich, ragt das Kopfende 7 des Kreuzprofils 2 ein Stück über die Außenkante 11 des Kopfringes 9 hinaus, das in seiner Länge dem Abstand von der Außenkante 11 des Fußringes 9 bis zur Endkante 18 des Kreuzprofils 2 am Unterende bzw. Fußende 6 zuzüglich der Dicke der zu stützenden Balkenschicht 5 entspricht. Am Kopfende 7 des Trägers 1 schließen die Bleche 10 auf gleicher Ebene mit der Außenkante 11 des Ringes ab, wodurch für die Durchlaufträger 19 eine tragende Fläche entsteht (Fig.5).As can be seen from Figures 3 and S, the head end 7 of the cross profile 2 protrudes a piece beyond the outer edge 11 of the head ring 9, the distance in its length from the outer edge 11 of the foot ring 9 to the end edge 18 of the cross profile 2 at the lower end or Foot 6 plus the thickness of the beam layer 5 to be supported. At the head end 7 of the carrier 1, the sheets 10 close on the same level with the outer edge 11 of the ring, whereby for the continuous carrier 19 a bearing surface is formed (Figure 5).

Zur Erleichterung der Montage eines oben befindlichen Trägers 1 an einen schon montierten, ragen, wie beschrieben, die auf der als Fußring dienenden Hülse 8 am Fußende 6 des Trägers 1 angebrachten Bleche 10 nach unten hin etwas über die Außenkante 11 des Fußringes 9 hinaus. Durch den im Vergleich zur Ausdehnung des Kreuzprofils 2 größeren Durchmesser des Kopfringes 9 am Kopfende 7 des Verbundträgers 1 wird es möglich, daß ein oder zwei parallele Durchlaufträger 19 durchgängig angeordnet und von dem durch den Kopfring 9 auf beiden Seiten vom Kreuzprofil 2 gebildeten Auflager getragen werden, wodurch eine Erhöhung der Belastbarkeit und Festigkeit der Durchlaufträger 19 erfolgt und gleichzeitig ein durchgängiger Verlauf des Kreuzprofils 2 bis über die Durchlaufträger 19 zur Verbindung mit dem Kreuzprofil 2 des darüber befindlichen Verbundträgers 1 erzielt wird, was wiederum eine einfache Lastübertragung vom darüber befindlichen Verbundträger 1 ermöglicht, ohne daß komplizierte, kostenaufwendige Verstärkungen an den Durchlaufträgern 19 für diese Lastübertragung erforderlich sind.To facilitate the installation of an overhead carrier 1 to an already mounted, protrude, as described, the serving as a foot ring sleeve 8 at the bottom end 6 of the carrier 1 mounted sheets 10 downwardly slightly beyond the outer edge 11 of the foot ring 9 addition. By compared to the extension of the cross profile 2 larger diameter of the head ring 9 at the head end 7 of the composite support 1, it is possible that one or two parallel continuous beam 19 are arranged continuously and supported by the formed by the head ring 9 on both sides of the cross profile 2 supports whereby an increase in the load capacity and strength of the continuous beam 19 takes place and at the same time a continuous course of the cross profile 2 is achieved over the continuous beam 19 for connection to the cross profile 2 of the overlying composite support 1, which in turn allows a simple load transfer from above the composite support 1 without the need for complicated, costly reinforcements on the through beams 19 for this load transfer.

Die erfindungsgemäße Herstellung eines Verbundträgers 1 kann folgendermaßen aussehen: An einer Traverse oder ähnlichem wird ein Kreuzprofil 2 mit bestimmten Abmessungen in einem vorher definierten Abstand von einer Unterlage aufgehängt. Eine Verbindungs- und Lagefixierungshülse 8 in Form eines Fußringes und eine zweite in Form eines Kopfringes werden so weit über die Enden 6,7 des Kreuzprofils gedrückt, daß die oben angeführten Ober- und Unterteile entstehen, wonach das Kreuzprofil 2 auf die Unterlage gelegt und zum Anschweißen der Bleche 10 der Ringe 9 an die Seiten 13 des Kreuzprofil 2 gedreht wird. Be! Bedarf können die Bleche 10 durch Eindrücken der zum Anlegen und Anschweißen an die Stege 13 des Kreuzprofils 2 bestimmten Einschnitte 17 zu einem Kreuzprofil mit kleineren Abmessungen umgeformt werden.The production according to the invention of a composite carrier 1 can be as follows: On a crossbeam or the like, a cross-section 2 with certain dimensions is suspended at a predefined distance from a base. A connection and Lagefixierungshülse 8 in the form of a foot ring and a second in the form of a head ring are pressed so far over the ends of the cross profile 6.7 that the above-mentioned upper and lower parts arise, after which the cross-section 2 placed on the pad and the Welding the sheets 10 of the rings 9 is rotated on the sides 13 of the cross profile 2. Be! Demand can the sheets 10 are formed by impressing the particular for applying and welding to the webs 13 of the cross profile 2 cuts 17 to a cross-section with smaller dimensions.

Danach wird das Stahlrohr 3 über das Kreuzprofil 2 gezogen und am Fuß- und Kopfring angeschweißt. Nun ist der Träger zur Montage auf der Baustelle bereit, wo er mit Beton ausgegossen wird, was separat oder im Zusammenhang mit dem Gießen einer Balkenschicht oder der Montage einer vorgefertigten Balkenschicht erfolgt.Thereafter, the steel pipe 3 is pulled over the cross profile 2 and welded to the foot and head ring. Now, the support is ready for installation on the job site where it is poured with concrete, which is done separately or in connection with the casting of a beam layer or the assembly of a prefabricated beam layer.

Claims

1. Construction of a composite support consisting of a core in the form of a beam profile (2) made of steel, which is surrounded by a steel tube (3) and whose parts are arranged so that they are static with each other and with the interposed Betonverguß (4) connecting, characterized by said static composite causing connecting and Lagefixierungshülse (8) and consisting of a ring (9) having an outer diameter which must be slightly smaller than the inner diameter of the steel tube (3), and with an inner diameter the same size as the steel tube (3) or smaller than this, wherein the ring (9) at a predetermined distance from the interior of the ring (9) emanating a number of sheets (10) extending in the longitudinal direction of the Rinyes (9) and projecting beyond the outer edges (11, 12) of the ring (9) in at least one direction to enable the at least longitudinally extending welds to be welded to the webs (13) of the beam profile (2) adjacent end edges (14) of the sheet (10), where the sleeve (8) is located at the ends (6,7) of the beam profile (2) and serves as a foot and / or head ring, while the end portions of Steel tube (3) for applying and for fixing the position of the corresponding ring (9) extend, wherein the beam profile (2) at least one end (7) of the steel pipe (3) through the sleeve (8) and a predetermined piece over the steel pipe (3) protrude or only partially protrude into the sleeve (8) and within the steel pipe (3) with a distance from the end (6) of the mouth or smaller than this.

2. Structure according to claim 1, characterized in that the beam profile has the shape of a cross profile (2).

3. Structure according to claim 1 or 2, characterized in that the sheets (10) extend in pairs from the inside of the ring (9) in the direction of the ring center, wherein the distance between two paired sheets (10) at least the thickness of the corresponding leg ( 16) of the respective cross profile (2).

4. Structure according to one of the preceding claims, characterized in that the connection and 'agefixierungshülsen (8) at the end portions of the steel tube (3) with the attached to the sheets (10) of the sleeves (8), to form a Ober- and lower end in the longitudinal direction of the tube (3) position-shifted cross-profiles (2) are mounted.

5. Structure according to one of the preceding claims, characterized in that the sheets to be mounted (10) in serving as Fußriny (9) in a steel tube (3) with therein cross profile (2) serving sleeve (8) slightly down over the Ring (9) protrude to facilitate insertion and connection with an already mounted, underneath carrier (1).

6. Structure according to one of the preceding claims, characterized in that the head ring serving as (9) sleeve (8) forms a support for a carrier (Danschließenden and from the carrier (1) supported continuous carrier (19).

7. Structure according to claim 6, characterized in that it allows the support by the compared to the extent of the cross profile (2) larger diameter of the head ring (9) that one or two parallel continuous beam (19) on both sides of the cross profile (2 ) can be routed consistently over the support, whereby an increase in the carrying capacity and strength of the continuous beam (19) achieved while a continuous course of the cross profile (2) through the continuous support (19) for connection to the cross profile (2) of the above located carrier (1) is achieved, which in turn allows a simple load transfer from the above carrier (1).

8. Structure according to one of the preceding claims, characterized in that the cross profile (2) at the upper end (7) corresponds to a piece which corresponds to the thickness of the bar layer located above, and another piece, the depth of the lower end (7) from above coming carrier (1) corresponds, survives.

9. A method for producing a composite beam, consisting of a core in the form of a beam profile (2) made of steel, which is surrounded by a steel tube (3); these parts are after the Betonverguß in a static composite with each other and with the intervening concrete casting (4); a connection and Lagefixierungshülse (8) according to any one of the claims 1-8, characterized in that a sleeve (8) in the form of a foot ring (9) and a second in the form of a head ring (9) over the end portions (6,7) the beam profile (2) pressed; The beam profile (2) is placed on a base and for welding the sheets (10) of the

Rings (9) turned to the webs (13); Thereafter, the steel tube (3) is placed over the beam profile (2) and welded to the foot ring and head ring; Thereafter, the carrier is ready for assembly and can be filled with concrete (4), which is done separately or in connection with the casting of a beam layer (5) or the assembly of a prefabricated beam layer (5).

For this 2 pages drawings

The invention relates to the construction of a composite support consisting of a core of a beam profile made of steel, which is surrounded by a steel tube and whose parts are arranged so that a static bond is achieved with each other and with the interposed Betonverguß.

Today, a variety of different types of composite supports in the market. The advantages of a composite beam compared to a steel beam consist in the often smaller dimensions and in the higher fire resistance. The disadvantages of a composite beam are the costly devices for ensuring the static bonding of steel and concrete, as well as the complicated equipment required at the load application points, such as, e.g. on each bar day, to ensure that the attacking load is actually spread over the entire beam cross-section. One common type of composite beam consists of a concrete pipe filled with concrete. If such a carrier extends over several storeys, the load can be absorbed by the continuous carriers via supports welded to the steel tube.

To ensure that the concrete also absorbs part of the load to be carried, these supports must be firmly anchored in the concrete. To accomplish this is complicated. For casting-technical reasons, the carriers can not be created consistently over too many floors. That is why you may also be more likely to resort to the method of limiting the length of the beams to floor level. In this case, the beams usually have a foot and head plate which allows the load to be shared between steel and concrete. An advantage of the straightened in length of the Etagehö'.e carrier is that the bars located above the beams can run continuously, whereby the load capacity of the beams is increased. A disadvantage of floor-high beams is that complicated beams are required on the beams for discharging the load from the upper beams over the beams without being compressed. In addition, the assembly is usually slower than it is the case with continuous Ti.igern, since the carriers for each new floor in the height and side guide must be fitted and anchored by screw or welding Vorbund in the underlying beam.

One of the objects of the present invention is to develop a composite support by means of which the disadvantages of the above-mentioned, otherwise conventional composite supports are eliminated. The distinguishing features essential to the invention are formulated in the following patent claim.

According to the invention, there is now a connection and position fixing sleeve, with which both facilitates the connection of the carrier and an exact positional fixation of the beam profile within the steel pipe is guaranteed before and in connection with the Betonverguß taking place therein. In addition, the sleeve causes an effective static bond between Baikenprofil and steel pipe and the Betonverguß located between these parts. The shape of the sleeve also creates a carrier support which makes it possible to pass a continuous carrier continuously past the carrier, while the beam profile of the composite carrier can protrude beyond the continuous carrier for the purpose of a quick and easy connection of the carrier located above. This is realized in such a way that the discharge of the load from this overlying support can take place on the continuous support without any complicated reinforcements. The invention will be explained in more detail below with attached drawing. Show it