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Author(s):	Kindmann, Rolf; Vette, Jan
Title:
Abstract:	Sofern Stahlrohre (kreisförmige Hohlprofile) als Stützen oder Träger verwendet werden, können sie in Fundamente bzw. Wände aus Stahlbeton einbetoniert werden. Diese Anschlüsse wirken i. d. R. wie Einspannungen, die eine ausreichende Einspanntiefe erfordern. Im Folgenden werden in Stahlbetonkonstruktionen eingespannte Stahlrohre untersucht und Tragfähigkeitsnachweise unter Berücksichtigung der Einspanntiefe und Betondruckspannungen im Einspannbereich sowie darüber hinaus an den maßgebenden Stellen für die Stahlrohre geführt. Als Ergänzung zu den Berechnungsformeln werden Diagramme zur Verfügung gestellt, die die Wahl der Einspanntiefe vereinfachen. Bei vielen baupraktischen Anwendungsfällen reicht als Einspanntiefe der zweifache Rohrdurchmesser aus. Load-bearing capacity of steel profiles with tubular sections restrained in reinforced concrete If steel profiles with tubular sections are used as columns or beams, they can be restrained into foundations or walls made of reinforced concrete. These connections generally act like restraints that require a sufficient length. In the following, profiles with tubular sections restrained in reinforced concrete constructions are investigated and load-bearing capacity verifications are treated in consideration of the restraining length and concrete compressive stresses in the restraint area, as well as verifications at the relevant points of the profiles. As a supplement to the calculation formulas, diagrams are provided that allow the determination of the restraint length. In many practical applications, the double profile diameter is sufficient as restraint length.
Source:	Stahlbau 90 (2021), No. 1
Page/s:	2-12
Language of Publication:	German

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