International Journal of High-Rise Buildings (국제초고층학회논문집)

Council on Tall Building and Urban Habitat Korea (한국초고층도시건축학회)
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Seismic Performance of High-Rise Intermediate Steel Moment Frames according to Rotation Capacities of Moment Connections

  • Han, Sang Whan (Department of Architectural Engineering, Hanyang University) ;
  • Moon, Ki-Hoon (Disaster Prevention Research Team, Daewoo Institute of Construction Technology) ;
  • Ha, Sung Jin (Department of Architectural Engineering, Hanyang University)
  • Published : 2015.03.31
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Abstract

The rotation capacity of the moment connections could significantly influence on the seismic performance of steel moment resisting frames. Current seismic provisions require that beam-to-column connections in Intermediate Moment Frames (IMF) should have a drift capacity as large as 0.02 radian. The objective of this study was to evaluate the effect of the rotation capacity of moment connections on the seismic performance of high-rise IMFs. For this purpose, thirty- and forty-story high-rise IMFs were designed according to the current seismic design provisions. The seismic performance of designed model frames was evaluated according to FEMA P695. This study showed that the forty-story IMF satisfied the seismic performance objective specified in FEMA P695 when the rotation capacity of the connections was larger than 0.02. However, thirty-story IMFs satisfied the performance objective when the connection rotation capacity is larger than 0.03.

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References

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