Experiment and FEA of impact resistance of CFST columns with circular cross-section

被引：0
|
作者：
Zeng X. [1 ,2 ]
Xiong L. [1 ,2 ]
Li Z. [1 ,2 ]
Zhao Y. [1 ,2 ]
Du G. [1 ,2 ]
机构：
[1] School of City Construction, Yangtze University, Jingzhou
[2] Structural Engineering and Disaster Prevention Research Institute, Yangtze University, Jingzhou
来源：
Du, Guofeng (gfd_1125@126.com) | 1600年 / Science Press卷 / 38期
关键词：
CFST column; FE analysis; Impact resistance; Impact test;
D O I：
10.14006/j.jzjgxb.2017.S1.021
中图分类号：
学科分类号：
摘要：
For studying the mechanical performance of CFST columns under lateral impact loading, transverse drop impact tests on CFST columns with circular cross-section under impact loading were carried out to obtain the failure mode, global deformation and strain distribution characteristics. The characteristics of impact force and time history curve of midspan deflection were analyzed. Also, the influences of parameters, such as strength of steel and concrete, on the mechanical behavior of CFST columns with circular cross-section were studied using ABAQUS software. The results show that within the scope of the test, with the increment of impact energy, the peak values of impact force, midspan deflection and duration of impact increase; with the increment of steel ratio, the peak and platform values of impact force become greater, but the peak value of midspan deflection and duration of impact get smaller; the yield strength of steel has great influence on the impact resistance of specimens, while the concrete compressive strength has relatively small influence. © 2017, Editorial Office of Journal of Building Structures. All right reserved.
引用
收藏
页码：157 / 164
页数：7
相关论文
共 11 条
  • [1] Remennikov A.M., Kong S.Y., Uy B., Response of foam and concrete-filled square steel tubes under low velocity impact loading, Journal of Performance of Constructed Facilities, ASCE, 25, 5, pp. 373-381, (2011)
  • [2] Li A., Qu H., Huang W., Failure modes study on T-joints of concrete-filled steel tubular truss under impact loads, Journal of Building Structures, 34, pp. 134-139, (2013)
  • [3] Li Y., Study on the dynamic response of concrete filled rectangular tube under lateral impact, pp. 38-74, (2016)
  • [4] Hou C., Study on performance of circular concrete-filled steel tubular(CFST) members under low velocity transverse impact, pp. 20-48, (2012)
  • [5] Jia D., The accidence research of steel tube-confined concrete in the lateral impact, pp. 43-99, (2005)
  • [6] Liu Y., Experiment research and numerical analysis of lateral impact respond of steel tube-confined concrete at common type restrain, pp. 11-41, (2005)
  • [7] Zhang Q., Jiang Q., Lu X., Comparison of impact resistance of different concrete filled steel tube sections, Engineering Mechanics, 30, pp. 89-93, (2013)
  • [8] Han L., Concrete-filled Steel Tubular Structures: Theory and Application, pp. 66-110, (2007)
  • [9] Liu W., Research on mechanism of concrete-filled steel tubes subjected to local compreesion, pp. 1-85, (2005)
  • [10] CEB-FIP Model Code 1990: Design Code, (1993)
12