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Author(s):	Meier, Andreas
Title:
Abstract:	In den letzten Jahren wurde häufig (u. a. in [1], dem Teil 1 dieses Beitrags) auf die Thematik des zu bemessenden Zeitpunkts und den Ansatz der effektiven Betonzugfestigkeit fct,eff bei der Ermittlung der rissbreitenbegrenzenden Bewehrungsmenge eingegangen. Nicht zuletzt wurde in [2] eine betontechnologische Betrachtung dieses Themas unter Berücksichtigung der Ansätze des Eurocode 2 [3, 4] vorgenommen. Da eine abschließende, allgemeingültige Klärung nicht möglich ist, wird in diesem Aufsatz versucht, einige Hinweise zu geben und mögliche Lösungsansätze aufzuzeigen. Die dargestellten Möglichkeiten liegen dabei immer auf der (tragwerks)planerisch “sicheren” Seite, wodurch sie gezwungenerweise nie die wirtschaftlichste Lösung darstellen können. The late restraint as an underestimated - but authoritative - load case in design. Part 2: Information for structural designers Over the last few years the design approach for the point in time and the value of the concrete tensile strength effective fct,eff for calculating the amount of reinforcement required for crack control frequently (e.g. in [1]) has been discussed. Not least, in [2] a concrete technology approach of the topic was made taking the Eurocode 2 [3, 4] approaches into account. Because a final and universal clarification is not possible this paper is intended to provide some indications and identify some solution approaches. The shown possibilities are always on the safe side concerning the structural design. It is thus possible it might not necessarily be the most economical solution.
Source:	Beton- und Stahlbetonbau 110 (2015), No. 3
Page/s:	179-190
Language of Publication:	German

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