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作者:

Jin, Liu (Jin, Liu.) (学者:金浏) | Xu, Jiandong (Xu, Jiandong.) | Zhang, Renbo (Zhang, Renbo.) | Du, Xiuli (Du, Xiuli.) (学者:杜修力)

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摘要:

To describe the complex failure process of reinforced concrete (RC) beams subjected to impact loading accurately, a mesoscale numerical analysis method was established to explore the anti-impact performance of a RC beam considering concrete heterogeneity, strain rate effect of concrete mesocomponents, concrete being assumed as a 3-phase composite composed of aggregate particles, mortar matrix and interfacial transition zones (ITZs), and a web reinforcement being embedded into the plain concrete beam. Using the proposed simulation method, effects of dropping hammer velocity on anti-impact performance of a RC beam were investigated. The simulation results including failure modes, impact loading, mid-span deflection and support reaction were compared with those of the macro-scale simulation results and the published test results.It was shown that the simulation results agree well with those of tests; the proposed meso-scale numerical model and method are feasible for simulating anti-impact performance of RC beams. © 2018, Editorial Office of Journal of Vibration and Shock. All right reserved.

关键词:

Reinforced concrete Concrete aggregates Particle reinforced composites Aggregates Numerical methods Numerical models Concrete beams and girders Strain rate

作者机构:

  • [ 1 ] [Jin, Liu]The key Laboratory of Urban Security and Disaster Engineering, Beijing University of Technology, Beijing; 100124, China
  • [ 2 ] [Xu, Jiandong]The key Laboratory of Urban Security and Disaster Engineering, Beijing University of Technology, Beijing; 100124, China
  • [ 3 ] [Zhang, Renbo]The key Laboratory of Urban Security and Disaster Engineering, Beijing University of Technology, Beijing; 100124, China
  • [ 4 ] [Du, Xiuli]The key Laboratory of Urban Security and Disaster Engineering, Beijing University of Technology, Beijing; 100124, China

通讯作者信息:

  • 杜修力

    [du, xiuli]the key laboratory of urban security and disaster engineering, beijing university of technology, beijing; 100124, china

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来源 :

Journal of Vibration and Shock

ISSN: 1000-3835

年份: 2018

期: 2

卷: 37

页码: 57-65

被引次数:

WoS核心集被引频次:

SCOPUS被引频次: 7

ESI高被引论文在榜: 0 展开所有

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