Design model for the fatigue behaviour of normal-strength, high-strength and ultra-high-strength concrete | Health & Environmental Research Online (HERO)

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Citation
Tags

HERO ID

6877029

Reference Type

Journal Article

Title

Design model for the fatigue behaviour of normal-strength, high-strength and ultra-high-strength concrete

Author(s)

Lohaus, L; Oneschkow, N; Wefer, M; ,

Year

2012

Is Peer Reviewed?

Journal

Structural Concrete
ISSN: 1464-4177

Publisher

ERNST & SOHN

Location

BERLIN

Page Numbers

182-192

DOI

10.1002/suco.201100054

Web of Science Id

WOS:000308304300007

Abstract

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.