Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

Earthquake Engineering Society of Korea (한국지진공학회)
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Progressive Collapse-Resistant Rotational Capacity Evaluation of WUF-W Connection by Fracture Index Analysis

파괴지수분석에 의한 WUF-W 접합부의 연쇄붕괴저항 회전능력평가

  • Kim, Seonwoong (Department of Smart City Engineering, Youngsan University)
  • 김선웅 (영산대학교 스마트시티공학부)
  • Received : 2018.06.18
  • Accepted : 2018.08.21
  • Published : 2018.09.01
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Abstract

This paper is to investigate the micro-behavior of the double-span beams with WUF-W seismic connection under combined axial tension and moment and to propose the rational rotational capacity of it for progressive collapse-resistant analysis and design addressing the stress and strain transfer mechanism. To this end, the behavior of the double-span beams under the column missing event is first investigated using the advanced nonlinear finite element analysis. The characteristics of fracture indices of double-span beams with WUF-W connection under combined axial tension and flexural moment are addressed and then proposed the rational rotational capacity as the basic datum for the progressive collapse-resistant design and analysis. The distribution of fracture indices related to stress and strain for the double-span beams is investigated based on a material and geometric nonlinear finite element analysis. Furthermore, the micro-behavior for earthquake and progressive collapse is explicitly different.

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References

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