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Construction & building materials v.134, 2017년, pp.131 - 141   SCIE
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

Experimental study of large-sized concrete filled steel tube columns under blast load

Wang, Hongwei (School of Civil Engineering, Guangzhou University, China ) ; Wu, Chengqing (Centre for Built Infrastructure Research, School of Civil and Environmental Engineering, University of Technology Sydney, NSW 2007, Australia ) ; Zhang, Fangrui (School of Civil, Environmental and Mining Engineering, The University of Adelaide, SA 5005, Australia ) ; Fang, Qin (PLA University of Science and Technology, Nanjing, China ) ; Xiang, Hengbo (PLA University of Science and Technology, Nanjing, China ) ; Li, Peng (School of Civil Engineering, Guangzhou University, China ) ; Li, Zhibin (School of Civil Engineering, Guangzhou University, China ) ; Zhou, Yun (School of Civil Engineering, Guangzhou University, China ) ; Zhang, Yadong (PLA University of Science and Technology, Nanjing, China ) ; Li, Jun (Centre for Built Infrastructure Research, School of Civil and Environmental Engineering, University of Technology Sydney, NSW 2007, Australia ) ;
  • 초록  

    Abstract This paper investigates blast resistance and residual strength of concrete-filled steel tube (CFST) columns under close-range blast loads. A total of 8 CFST columns, including 4 with circular cross sections and 4 with square cross sections, were tested under close-range blasts. LVDTs were used to record displacement histories and pressure sensors were used to measure pressure histories. The influence of explosive charge weight, steel tube thickness and cross section geometry on dynamic response of CFST columns was analyzed and failure modes of CFST columns were also investigated. Following the blast tests, an experimental study was conducted to investigate residual strength of blast-damaged CFST columns. It was found that the CFST columns were still able to retain a large portion of their axial load capacities even after close-range blast events. Highlights Concrete-filled steel tube (CFST) columns are tested under close-range blasts. The influence from charge weight, tube thickness and cross section geometry was analyzed. Failure modes of CFST columns under blast loads were studied. Residual strength of blast-damaged CFST columns was analyzed.


  • 주제어

    Concrete filled steel tube .   Blast load .   Residual loading capacity.  

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