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Abstract:	In diesem Beitrag werden Berechnungen und vergleichende experimentelle Ergebnisse des Stabilitätsverlusts von schlanken Stahlbetonstützen aus einer Versuchsreihe präsentiert. Das primäre Ziel der Arbeit war der Vergleich der Bemessungsmethoden bei der Ermittlung der globalen Zuverlässigkeit schlanker Stahlbetonstützen. Der Schlankheitsgrad der Stützen betrug &lgr; > 90, wobei die untersuchten Stützen nach EN 1992-1-1 dimensioniert wurden. Die oben erwähnten experimentellen Untersuchungen dienten zudem als Grundlage für die Bewertung und Kalibrierung der deterministischen und probabilistischen nichtlinearen Modellbildung. Diese probabilistische Modellbildung der Normalkraft-Momenten (N-M)-Beziehung und des Stabilitätsversagens ist eine Grundlage für die Entwicklung eines objektivierten Bemessungsansatzes und der zugehörigen Teilsicherheitsbeiwerte. Reliability of slender columns The target of this paper is to present computations and comparative experimental results of the stability loss of slender reinforced concrete columns from a series of experiments. The primary objective of the work was to compare the various possible design methods used to assure the reliability of the discussed slender reinforced concrete columns. The slenderness of columns was &lgr; > 90, whereby they were dimensioned according to EN 1992-1-1. The above-mentioned experiments also served as the basis for the assessment and calibration of the deterministic and probabilistic non-linear finite element models. A calibrated probabilistic non-linear finite element model for the description of an accurate normal force moment (N-M) relation and the stability failure is a basis for the development of an objectivized assessment approach and the associated partial safety factors.
Source:	Beton- und Stahlbetonbau 112 (2017), No. 7
Page/s:	392-401
Language of Publication:	German

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