DOI QR코드

DOI QR Code

Impact response of a novel flat steel-concrete-corrugated steel panel

  • Lu, Jingyi (Key Lab of Structures Dynamic Behavior and Control of the Ministry of Education, Harbin Institute of Technology) ;
  • Wang, Yonghui (Key Lab of Structures Dynamic Behavior and Control of the Ministry of Education, Harbin Institute of Technology) ;
  • Zhai, Ximei (Key Lab of Structures Dynamic Behavior and Control of the Ministry of Education, Harbin Institute of Technology) ;
  • Zhou, Hongyuan (Key Lab of Urban Security and Disaster Engineering of Ministry of Education, Beijing University of Technology)
  • 투고 : 2021.03.25
  • 심사 : 2022.01.28
  • 발행 : 2022.01.25

초록

A novel flat steel plate-concrete-corrugated steel plate (FS-C-CS) sandwich panel was proposed for resisting impact load. The failure mode, impact force and displacement response of the FS-C-CS panel under impact loading were studied via drop-weight impact tests. The combined global flexure and local indentation deformation mode of the FS-C-CS panel was observed, and three stages of impact process were identified. Moreover, the effects of corrugated plate height and steel plate thickness on the impact responses of the FS-C-CS panels were quantitatively analysed, and the impact resistant performance of the FS-C-CS panel was found to be generally improved on increasing corrugated plate height and thickness in terms of smaller deformation as well as larger impact force and post-peak mean force. The Finite Element (FE) model of the FS-C-CS panel under impact loading was established to predict its dynamic response and further reveal its failure mode and impact energy dissipation mechanism. The numerical results indicated that the concrete core and corrugated steel plate dissipated the majority of impact energy. In addition, employing end plates and high strength bolts as shear connectors could prevent the slip between steel plates and concrete core and assure the full composite action of the FS-C-CS panel.

키워드

과제정보

The research presented in this paper is financially supported by the Funds for Creative Research Groups of National Natural Science Foundation of China (Grant No. 51921006), the Fundamental Research Funds for the Central Universities (Grant No. FRFCU5710051919) and Heilongjiang Postdoctoral Fund (Grant No.: LBH-Q21099 and LBH-TZ1014).

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