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Fatigue equation of structural materials and members under hot-wet environment and cyclic bending loads

Fatigue equation of structural materials and members under hot-wet environment and cyclic bending... The main structural members of bridges are served under vehicle loads and environment coupling action. Therefore, there is a need for an effective method which can be used to analysis fatigue behavior of bridge structural materials and members under coupling action of hot-wet environment and cyclic loads. In this paper, a hot-wet environment fatigue equation was proposed for describing the fatigue behavior of steel fiber polymer structural concrete (SFPSC) and reinforced concrete (RC) beams strengthened with carbon fiber reinforced polymer (CFRP), and the fatigue experiments under the coupling and uncoupling action of different hot-wet conditions and cyclic bending loads were carried out. The research results showed that the proposed hot-wet environmental fatigue equation was effective and feasible for predicting the fatigue lives and the fatigue limits of the structural material and members of the bridges. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Strength, Fracture and Complexity iospress

Fatigue equation of structural materials and members under hot-wet environment and cyclic bending loads

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Publisher
IOS Press
Copyright
Copyright © 2020 IOS Press and the authors. All rights reserved
ISSN
1567-2069
eISSN
1875-9262
DOI
10.3233/SFC-190241
Publisher site
See Article on Publisher Site

Abstract

The main structural members of bridges are served under vehicle loads and environment coupling action. Therefore, there is a need for an effective method which can be used to analysis fatigue behavior of bridge structural materials and members under coupling action of hot-wet environment and cyclic loads. In this paper, a hot-wet environment fatigue equation was proposed for describing the fatigue behavior of steel fiber polymer structural concrete (SFPSC) and reinforced concrete (RC) beams strengthened with carbon fiber reinforced polymer (CFRP), and the fatigue experiments under the coupling and uncoupling action of different hot-wet conditions and cyclic bending loads were carried out. The research results showed that the proposed hot-wet environmental fatigue equation was effective and feasible for predicting the fatigue lives and the fatigue limits of the structural material and members of the bridges.

Journal

Strength, Fracture and Complexityiospress

Published: Mar 26, 2020

References