Seismic Performance Evaluation and Economic Analysis of 5-Story RC Moment-Resisting Frames

5층 철근콘크리트 모멘트-저항골조 구조물의 내진성능 평가 및 공사원가 분석

  • Received : 2015.07.06
  • Accepted : 2015.08.13
  • Published : 2015.12.20


Recently, the concept of seismic design has changed from prescriptive to performance based design. For the performance based design with the specified target performance of the structure, it is necessary to execute the inelastic structural analysis to predict precisely the actual behavior of the structure. To address this issue, the seismic performance of the 5-story RC moment-resisting frames designed in accordance with KBC2009 is evaluated through push-over analysis and economic analysis is conducted focused on the direct construction costs. The results show that the ordinary and the intermediate moment-resisting frame are evaluated to meet the required performance design criteria and that the direct construction costs of the two frames are similar. However, although the special moment-resisting frame designed with strong column-weak girder philosophy satisfies the required performance design criteria, the direct construction cost is uneconomical compared with other frames. Therefore, although the intermediate moment-resisting frame of design category D is prohibited in IBC2012, the ordinary and the intermediate moment-resisting frame are estimated to be more reasonable than the special moment-resisting frame for the design of 5-story RC moment-resisting frame.


RC moment resisting frame;seismic performance;performance point;economic analysis;cost estimation


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Supported by : National Research Foundation of Korea