Earthquakes and Structures

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Experimental study on lateral behavior of precast wide beam-column joints

  • Kim, Jae Hyun (Department of Architectural Engineering, University of Seoul) ;
  • Jang, Beom Soo (Department of Structural Design, Dream Structural Engineering Co.) ;
  • Choi, Seung-Ho (Department of Architectural Engineering, University of Seoul) ;
  • Lee, Yoon Jung (Department of Architectural Engineering and the Smart City Interdisciplinary Major Program, University of Seoul) ;
  • Jeong, Ho Seong (Department of Architectural Engineering and the Smart City Interdisciplinary Major Program, University of Seoul) ;
  • Kim, Kang Su (Department of Architectural Engineering and the Smart City Interdisciplinary Major Program, University of Seoul)
  • Received : 2021.08.02
  • Accepted : 2021.11.10
  • Published : 2021.12.25
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Abstract

In this study, cyclic loading tests were conducted on the precast concrete (PC) wide beam (WB)-column joints. Two beam-column joint specimens were fabricated with the arrangement and anchorage details of the reinforcing bars penetrating the beam and column as variables. Through a cyclic loading test, the lateral load-story drift ratio responses, seismic performance characteristics (e.g., ductility, overstrength factor), energy dissipation, strength and stiffness degradations of each specimen were compared and analyzed based on the various indices and the current structural codes (ACI 318-19 and ACI 374.1-05 report). In addition, the shear lag effect was confirmed through the gauge values of the PC beam, and the differences in seismic performance between the specimens were identified on that basis.

Keywords

Acknowledgement

This work was financially supported by Korea Ministry of Land, Infrastructure and Transport(MOLIT) as [Innovative Talent Education Program for Smart City]. Also, the first and second authors would like to acknowledge that this research was supported by the DL Construction Co., Ltd.

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