Steel and Composite Structures

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Experimental research on seismic behavior of a composite RCS frame

  • Men, Jinjie (College of Civil Engineering, Xi'an University of Architecture & Technology) ;
  • Zhang, Yarong (College of Civil Engineering, Xi'an University of Architecture & Technology) ;
  • Guo, Zhifeng (College of Civil Engineering, Xi'an University of Architecture & Technology) ;
  • Shi, Qingxuan (College of Civil Engineering, Xi'an University of Architecture & Technology)
  • Received : 2014.06.11
  • Accepted : 2014.10.10
  • Published : 2015.04.25
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Abstract

To promote greater acceptance and use of composite RCS systems, a two-bay two-story frame specimen with improved composite RCS joint details was tested in the laboratory under reversed cyclic loading. The test revealed superior seismic performance with stable load versus story drift response and excellent deformation capacity for an inter-story drift ratio up to 1/25. It was found that the failure process of the frame meets the strong-column weak-beam criterion. Furthermore, cracking inter-story drift ratio and ultimate inter-story drift ratio both satisfy the limitation prescribed by the design code. Additionally, inter-story drift ratios at yielding and peak load stage provide reference data for Performance-Based Seismic Design (PBSD) approaches for composite RCS frames. An advantage over conventional reinforced concrete and steel moment frame systems is that the displacement ductility coefficient of the RCS frame system is much larger. To conclude, the test results prove that composite RCS frame systems perform satisfactorily under simulated earthquake action, which further validates the reliability of this innovative system. Based on the test result, some suggestions are presented for the design of composite RCS frame systems.

Keywords

References

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