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ZHENG Qiu, HUO Jing-si, CHEN Bai-sheng, XIAO Yan. EXPERIMENTAL RESEARCH ON IMPACT BEHAVIOR OF CONCRETE- FILLED STEEL TUBE AT ELEVATED TEMPERATURES[J]. Engineering Mechanics, 2009, 26(5): 142-147.
Citation: ZHENG Qiu, HUO Jing-si, CHEN Bai-sheng, XIAO Yan. EXPERIMENTAL RESEARCH ON IMPACT BEHAVIOR OF CONCRETE- FILLED STEEL TUBE AT ELEVATED TEMPERATURES[J]. Engineering Mechanics, 2009, 26(5): 142-147.
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EXPERIMENTAL RESEARCH ON IMPACT BEHAVIOR OF CONCRETE- FILLED STEEL TUBE AT ELEVATED TEMPERATURES

  • (1. Key Laboratory of Building Safety and Energy Efficiency of China Ministry of Education, Hunan University, Changsha 410082, China; 2. University of Southern California, Los Angeles, CA90089, California, U.S.A)

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  • Received Date: December 31, 1899
  • Revised Date: December 31, 1899
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  • The impact behavior of 15 concrete-filled steel tubes (CFT) specimens under different temperatures ranging from room temperature to 400℃ was experimentally studied using a spilt Hopkinson pressure bar (SHPB). The stress and strain time history curves of the tested specimens were recorded to analyze the impact behavior of CFT under high temperatures. The failure patterns and the recorded load versus deformation curves demonstrate that the CFT has an excellent impact-resistant behavior under high temperatures, i.e. relatively higher strength and post-yielding strength, excellent plasticity and integrity of the composite section.
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