Experimental and Numerical Studies on Concrete Filled Circular Steel Tubular (CFCST) Members Under Impact Loads

  • Guofeng Du
  • Milos Babic
  • Fanghong Wu
  • Xi Zeng
  • Xue-Meng Bie
Research paper


This paper presents experimental and numerical studies on the behavior of concrete filled circular steel tubular (CFCST) members under lateral impact loading. Fourteen CFCST member specimens were designed, fabricated and tested using a Drop Hammer Impact Test Machine in a simple double-supported boundary conditions. The main parameters include the outer diameter of CFCST member, the thickness of steel tube and the height of drop hammer. The failure modes, the impact force, the impact force time history curves and the strain time history curves were investigated to evaluate the behavior of CFCST member under an impact load. A finite element analysis (FEA) model of CFCST member under lateral impact loading was established using ABAQUS software, and the accuracy of the proposed model was verified by a comparison with the test results. The response of the specimen under impact loading simulated by FEA model, matches well with the test results.


Concrete filled circular steel tubular (CFCST) member Finite element analysis (FEA) Drop hammer test Impact loading 



The research presented in this paper is part of Project (51778064) supported by National Natural Science Foundation of China, the Project (2016D-5007-0605) supported by Petroleum Science and Technology Innovation Foundation of China, and the Project (2016CFA022) supported by Natural Science Foundation of Hubei Province, China. The financial support is highly appreciated.

Compliance with Ethical Standards

Conflict of interest

The authors declare no conflict of interest.


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Copyright information

© Iran University of Science and Technology 2018

Authors and Affiliations

  1. 1.School of Urban ConstructionYangtze UniversityJingzhouChina
  2. 2.School of Civil EngineeringWuhan UniversityWuhanChina
  3. 3.State Key Laboratory of Coastal and Offshore EngineeringDalian University of TechnologyDalianChina

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