Design model for the fatigue behaviour of normal-strength, high-strength and ultra-high-strength concrete
Autor(en): |
Ludger Lohaus
Nadja Oneschkow Maik Wefer |
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Medium: | Fachartikel |
Sprache(n): | Englisch |
Veröffentlicht in: | Structural Concrete, September 2012, n. 3, v. 13 |
Seite(n): | 182-192 |
DOI: | 10.1002/suco.201100054 |
Abstrakt: |
Fatigue design according to CEB-FIP Model Code 90 is limited to concrete grades up to C80. In addition, the design rules include a strength-dependent reduction in the fatigue reference strength, which leads to uneconomical design of high-strength concrete. Considering comprehensive knowledge now available concerning the fatigue behaviour of normal-strength and high-strength concretes, the amount of this reduction can no longer be justified. A new design model for compressive fatigue loading and its derivation is presented in this article. A comparison between the new design model and the current standard ones reveals that the new design model ensures safe and economical design of normal-strength, high-strength and ultra-high-strength concrete. This new design model is included in the new fib Model Code 2010. |
Stichwörter: |
Hochleistungsbeton Ermüdung Bemessungsmodell Model Code 2010
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Verfügbar bei: | Siehe Verlag |
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13.08.2014