Fatigue behaviour of high-strength concrete with respect to strain and stiffness
Fatigue behaviour of high-strength concrete with respect to strain and stiffness
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DOI：
10.1016/j.ijfatigue.2016.01.008
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发表时间：
2016-06-01
影响因子：
6
通讯作者：
Oneschkow, Nadja
中科院分区：
文献类型：
--
作者：
Oneschkow, Nadja
混凝土的疲劳性能，特别是高强度混凝土的疲劳性能，对于结构设计变得更加重要，因为更细长的结构对疲劳载荷更敏感，或者由于风力涡轮机通常暴露在高疲劳载荷下。在一个关于最大应力水平、加载频率和波形影响的研究项目中，研究了一种高强度混凝土的疲劳行为。研究的重点是低周疲劳。系统地分析了循环次数对破坏的影响以及对应变和刚度发展的影响。本文给出了选定的结果。对于所研究的三种影响，结果表明应变和刚度参数的变化与破坏循环次数的变化有一定的系统性。(C) 2016 Elsevier Ltd.版权所有。
The fatigue behaviour of concrete, and especially of high-strength concrete, has become more important for the design of structures due to more slender structures, which are more sensitive to fatigue loading, or due to wind turbines, which are typically exposed to high-fatigue loading. The fatigue behaviour of a high-strength concrete was investigated within a research project with respect to the influence of maximum stress level, loading frequency and waveform. The investigations were focused on low-cycle-fatigue. The influence on numbers of cycles to failure and on the developments of strain and stiffness were systematically analysed. Selected results are presented in this paper. For the three influences investigated the results show certain systematologies in the change of strain and stiffness parameters with respect to the change in number of cycles to failure. (C) 2016 Elsevier Ltd. All rights reserved.