Dynamic behaviors and ultimate strengths of RPC-Filled Steel Tubes under impact loading

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Journal of Vibration and Shock ›› 2016, Vol. 35 ›› Issue (20) : 160-171.

Chen Wan-xiang1,2, Guo Zhi-kun1, Jiang Meng1, Yan Feng-guo1,Gu Juan1

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Abstract

Dynamic behaviors of 20 Reactive Powder Concrete-Filled Steel Tube (RPC-Filled Steel Tube) specimens and 20 Reactive Powder Concrete (RPC) specimens under different impact loading are performed by using ø74 mm-Split Hopkinson Pressure Bar (SHPB), respectively. The stress-strain relationships, peak stress and peak strain of specimens in condition of different average strain rates are derived, the failure modes of specimens are also discussed. The prediction method of ultimate strength for RPC-Filled Steel Tube under impact loading is presented by means of introducing Dynamic Increase Factor (DIF) into the ultimate strength formula of RPC-Filled Steel Tube under static axial loading. It is indicated that the peak stress and peak strain of both RPC-Filled Steel Tube and RPC are increased as average strain rates increased. RPC-Filled Steel Tubes have higher strength, better ductility and integrity than RPC under impact loading, and the results show that RPC-Filled Steel Tube is a good material to resist to impact loads in protective engineering. The thickness of steel tube has obviously influence on the dynamic behaviors of RPC-Filled Steel Tube. Yielding state and stress hardening process can be observed in the specimens with smaller thickness, and the peak strain is also increased slightly. There are some deviations between analytical results and experimental data, but the relative errors are reduced as the strain rates of RPC-Filled Steel Tubes increased.

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Split Hopkinson Pressure Bar (SHPB) / impact loading / RPC-Filled Steel Tube / stress-strain curve / dynamic behavior

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Chen Wan-xiang1,2, Guo Zhi-kun1, Jiang Meng1, Yan Feng-guo1,Gu Juan1. Dynamic behaviors and ultimate strengths of RPC-Filled Steel Tubes under impact loading[J]. Journal of Vibration and Shock, 2016, 35(20): 160-171

References

[1] Lin-Hai Han, Wei-Hua Wang, Hong-Xia Yu. Experimental behavior of reinforced concrete (RC) beam to concrete-filled steel tubular (CFST) column frames subjected to ISO-834 standard fire [J]. Engineering Structures, 2010, 10:3130-3144.
[2] 林震宇，吴炎海，沈祖炎. 圆钢管活性粉末混凝土轴压力学性能研究 [J]. 建筑结构学报，2005，26（4）：52-57.
Lin Zhenyu, Wu Yanhai, Sen Zuyan. Research on behavior of RPC filled circular steel tube column subjected to axial compression [J]. Journal of Building Structures, 2005, 26(4):52-57.
[3] Tian Zhimin, Wu Ping’an, Jia Jianwei. Dynamic response of RPC-filled steel tubular columns with high load carrying capacity under axial impact loading [J]. Transactions of Tianjin University, 2008, 14(6): 441-449.
[4] Xiao Yan, Shan Jian-hua, Zheng Qiu. Experimental studies on concrete filled steel tubes under high rate loading [J]. Journal of Material in Civil Engineering (ASCE). 2009, 21(10):569-577.
[5] 冯建文.钢管活性粉末混凝土柱的力学性能研究 [D].北京：清华大学，2008.
Feng Jian-wen. Study on mechanical behavior of reactive powder concrete filled steel tubular columns [D]. Beijing: Tsinghua University, 2008.
[6] 单建华.钢管混凝土在冲击荷载作用下试验研究和有限元分析 [D].长沙：湖南大学，2007.
Shan Jian-hua.Experimental reseach and finite element analysis of concrete filled steel tubes under impact load [D]. Changsha: Hunan University, 2007.
[7] 李珠，李宝成，李永刚，等. 钢管混凝土短柱轴向冲击动力特性的探讨 [J]. 太原理工大学学报，2006，37（4）：383-385.
Li Zhu,Li Bao-cheng,Li Yong-gang,et al.The research of the dynamic property of steel tube-confined concrete short column under axial impact [J]. Journal of Taiyuan University of Technology, 2006, 37(4):383-385.
[8] 郑秋.钢管混凝土短柱抗冲击性能试验研究及有限元分析 [D]. 长沙：湖南大学, 2008.
Zheng Qiu.Experimental research and finite element analysis of concrete filled steel tube short columns under impact load [D]. Changsha: Hunan university, 2008.
[9] Huo JS, Huang CW, Xiao Y. Effects of sustained axial load and cooling phase on post-fire behavior of concrete-filled steel tubular stub columns [J]. Journal of Constructional Steel Research, 2009, 65(8-9):1664-1676.
[10] 中华人民共和国国家标准GB50010-2002. 混凝土结构设计规范 [S]. 北京：中国建筑工业出版社，2002：22-27，1664-1676.
[11] 中华人民共和国国家标准GB/T228-2002. 金属材料室温拉伸试验方法 [S]. 北京：中国建筑工业出版社，2002，4-20.
[12] 钟善铜编著.钢管混凝土结构（第三版） [M].清华大学出版社，2003.
Zhong Shantong. The concrete-filled steel tubular structures (Third Edition) [M]. Tsinghua University Press, 2003.
[13] Jayalekshmi S，Sankar Jegadesh JS. A comparative study on design principles of circular concrete filled steel tubular columns [C]. Proceedings of the Intl. Conf. on Inter Disciplinary Research in Engineering & Technology, 2014, 133-137.
[14] Tian-Yi Song, Lin-Hai Han, Hong-Xia Yu. Concrete filled steel tube stub columns under combined temperature and loading [J]. Journal of Constructional Steel Research, 2010, 66:369-384.
[15] Kolsky H. An investigation of the mechanical properties of materials at very high rates of loading [J]. Proceedings of the Physical Society, Section B, 1949, 62(11): 676-700.
[16] Lindholm US. Some experiments with the split Hopkinson pressure bar [J]. Journal of the Mechanics and Physics of Solids, 1964, 12(5): 317-335.
[17] 霍静思，何远明，肖莉平，陈柏生. 高温后钢管混凝土抗多次冲击力学性能试验研究 [J]. 湖南大学学报（自然科学版），2012，39（9）：6-10.
Huo Jing-si, He Yuan-ming, Xiao Li-ping, Chen Bai-sheng. Experimantal study on the dynamic behavior of concrete-filled steel tube after exposure to high temperatures under multiple impact loadings [J]. Journal of Hunan University (Natural Sciences), 2012, 39(9): 6-10.
[18] Lai MH, JCM Ho. Uni-axial compression test of concrete-filled-steel-tube columns confined by tie bars [J]. Procedia Engineering, 2013, 57: 662-669.
[19] 钟善桐. 钢管混凝土统一理论 [J]. 哈尔滨建筑工程学院学报，1994，27（6）：21-27.
Zhong Shantong. The unified theory of concrete filled steel tube (CFST) [J]. Journal of Harbin Archit. & Civ. Eng. Inst, 1994, 27(6): 21-27.
[20] Lin-Hai Han, Chuan-Chuan Hou, Xiao-Ling Zhao, Kim JR. Rasmussen. Behaviour of high-strength concrete filled steel tubes under transverse impact loading [J]. Journal of Constructional Steel Research, 2014, 92(1):25-39.
[21] British Standard Institutions BS 5400 [S]. Concrete and Composite Bridges, U.K. 2000.
[22] Schneider SP. Axially loaded concrete-filled steel tubes [J]. Journal of Structural Engineering, 1998, 124(10): 1125-1138.
[23] Lu ZH and Zhao YG. Mechanical behavior and ultimate strength of circular CFT columns subjected to axial compression loads [J]. 14th World Conference on Earthquake Engineering, Beijing, China, 2008.
[24] Jones N. Structural impact [M]. Cambridge, New York: Cambridge University Press, 1988.
[25] Comité Euro-International du Béton. Concrete structure under impact and impulsive loading [R]. CEB Bulletin No. 187, Lausanne Switzerland, 1988.
[26] 谭克锋，蒲心诚，蔡绍怀. 钢管超高强混凝土的性能与极限承载力的研究 [J]. 建筑结构学报， 1999， 20（1）：10-14.
Tan Kefeng, Pu Xincheng, Cai Shaohuai. Study on the mechanical properties of steel extra-high strength concrete encased in steel tubes [J]. Journal of Building Structures, 1999, 20(1):10-14.
[27] 康希良，赵鸿铁，薛建阳，仵建斌. 钢管混凝土套箍机理及组合弹性模量的理论分析 [J]. 工程力学， 2007， 24（11）：121-125.
Kang Xi-liang, Zhao Hong-tie, Xue Jiang-yang, Wu Jian-bin. Theoretic analysis for hooping mechanism and composite elastic modulus of CFST members [J]. Engineering Mechanics, 2007, 24（11）:121-125.