DOI QR코드

DOI QR Code

Recycled aggregate concrete filled steel SHS beam-columns subjected to cyclic loading

  • Yang, You-Fu (State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology) ;
  • Zhu, Lin-Tao (College of Civil Engineering, Fuzhou University)
  • 투고 : 2007.10.08
  • 심사 : 2009.01.02
  • 발행 : 2009.01.25

초록

The present paper provides test data to evaluate the seismic performance of recycled aggregate concrete (RAC) filled steel square hollow section (SHS) beam-columns. Fifteen specimens, including 12 RAC filled steel tubular (RACFST) columns and 3 reference conventional concrete filled steel tubular (CFST) columns, were tested under reversed cyclic flexural loading while subjected to constant axially compressive load. The test parameters include: (1) axial load level (n), from 0.05 to 0.47; and (2) recycled coarse aggregate replacement ratio (r), from 0 to 50%. It was found that, generally, the seismic performance of RACFST columns was similar to that of the reference conventional CFST columns, and RACFST columns exhibited high levels of bearing capacity and ductility. Comparisons are made with predicted RACFST beam-column bearing capacities and flexural stiffness using current design codes. A theoretical model for conventional CFST beam-columns is employed in this paper for square RACFST beam-columns. The predicted load versus deformation hysteretic curves are found to exhibit satisfactory agreement with test results.

키워드

참고문헌

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피인용 문헌

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