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Author(s):	Tue, Nguyen Viet; Turner, Katrin
Title:
Abstract:	Die Bemessung von Stahlbetonbauteilen erfolgt derzeit nach EC2. Ein wesentlicher Punkt in der Bemessung ist die Ermittlung der Mindestbewehrung gemäß den Angaben im Abschnitt 7.3.2. Durch die kompakte Darstellung der Gleichungen (7.1) und (7.2) in der Norm sind die mechanischen Zusammenhänge für die Anwender nicht einfach zu erkennen. Dies führt nicht selten zur falschen Interpretation der einzelnen Parameter und somit zu falschen Bemessungsergebnissen. Da die Mindestbewehrung in einzelnen Fällen die maßgebende Bewehrung für die Auslegung der Bauteile ist, insbesondere bei dicken Bauteilen, werden in diesem Beitrag die mechanischen Hintergründe für die beiden Gleichungen (7.1) und (7.2) dargestellt und erläutert. Hiermit sollte den in Ingenieurbüros tätigen Bauingenieuren mehr Sicherheit gegeben werden. Crack width control according to Eurocode 2 - Explanatory notes on factor kc Reinforced concrete members are designed now according to EC2. A significant aspect is the determining of the minimum reinforcement area specified in section 7.3.2. Due to the shortened illustrations of the equations (7.1) and (7.2), the mechanical background is difficult to be highlighted. This often results in inaccurate use of the model parameters, which might lead to an unsafe design, particularly for members predominantly reinforced only by the minimum reinforcement. Therefore the mechanical background of the equations (7.1) and (7.2) is focused on in this contribution. Proper discussions and explanations might help the structural engineer in the practical design.
Source:	Beton- und Stahlbetonbau 111 (2016), No. 8
Page/s:	515-520
Language of Publication:	German

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