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Author(s):	Speck, K.; Curbach, M.
Title:
Abstract:	Die Auswertung zahlreicher mehraxialer Versuche hat ergeben, dass die auftretenden Versagensmechanismen unter mehraxialer Beanspruchung für alle Betonarten prinzipiell gleich sind. Dies gilt sowohl für Normal- bis ultrahochfesten Beton, für Leichtbeton als auch für Faserbeton. Das vorgestellte Bruchkriterium orientiert sich an diesen Versagensarten und wird über eine entsprechende Kalibrierung an das Verhalten des jeweiligen Betons angepasst. Im Zuge der Aktualisierung des CEB-FIP Model Codes 90 wird es Einzug in die Bemessungsvorschriften finden. A Unified Multiaxial Fracture Criterion for all Concretes The evaluation of numerous multiaxial tests has shown that the occurring failure mechanisms under a multiaxial load are basically the same for all types of concrete. This is true for normal to ultra high performance concrete, lightweight concrete, as well as for fibre concrete. The presented fracture criterion is based on these failure types and is adjusted by a corresponding calibration to the behaviour of each concrete. In the course of the upgrade of the CEB-FIP Model Code 90, it will find entry into the dimensioning specification.
Source:	Beton- und Stahlbetonbau 105 (2010), No. 4
Page/s:	233-243
Language of Publication:	German

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