期刊
ENGINEERING STRUCTURES
卷 79, 期 -, 页码 417-426出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.engstruct.2014.07.043
关键词
Fibrous reinforced concrete; Crack localization; Probabilistic analysis
资金
- Centre for Absorption in Science of the Ministry of Immigrant Absorption
- Committee for Planning and Budgeting of the Council for Higher Education
- Ministry of Construction and Housing
This paper proposes a model that explains a phenomenon of only few cracks that significantly widen more than other cracks in tensile reinforced fibrous concrete (RFC) bars. It is a probabilistic model that takes into account both the fibers and conventional reinforcement ratios, where the fiber distribution in the concrete mix is considered random while the conventional reinforcement - deterministic. The model allows the derivation of a binomial probability function, whose maximum value denotes the most expected number of cracks that widen more than the others. It shows a good agreement with available experimental results. A case study demonstrates that for low reinforcement ratios it is most probable that only one or two cracks will significantly widen, and as the conventional reinforcement increases the widths of the cracks become more uniform. This result qualitatively conforms to a similar phenomenon that has been observed in bending experiments. (C) 2014 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据