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Fatigue Deterioration Process of Brick Masonry

机译：砖砌体的疲劳劣化过程

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摘要

In order to develop greater understanding of the long-term fatigue deterioration process of masonry structures, e.g. bridges, the effects of quasi-static and high-cycle fatigue loading have been studied through a series of small-scale laboratory test samples. With the help of acoustic emission monitoring, stages of the damage accumulation processes have been investigated under compression and shear for brick masonry. The relationship between stress level and fatigue life was characterised through S-N type curves and mathematical models. The concept of fatigue and permissibility limit were discussed and related to practical application. Methodology for assessing the life expectancy of masonry structures was demonstrated for masonry arch bridges with potential for wider application.
机译：为了更好地了解砌体结构的长期疲劳恶化过程，例如通过一系列小型实验室测试样本，研究了桥梁的准静态和高周疲劳载荷的影响。借助声发射监测，对砖砌体在压缩和剪切作用下的损伤累积过程进行了研究。通过S-N型曲线和数学模型表征了应力水平与疲劳寿命之间的关系。讨论了疲劳和允许极限的概念，并与实际应用相关。评估了砖石结构拱桥预期寿命的方法，具有广泛的应用潜力。

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  • 来源
    《Masonry international》 |2013年第2期|41-48|共8页
  • 作者

    A.K. TOMOR; S. DE SANTIS; J. WANG;

  • 作者单位

    University of the West of England, Department of Construction and Property, Coldharbour Lane, Bristol, BS16 1QY, UK;

    Roma Tre University, Department of Engineering, Via Vito Volterra 62, 00146 Rome, ITALY;

    University of Salford, School of Computing, Science & Engineering, Greater Manchester, M5 4WT, UK;

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