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Seismic Performance Evaluation of Beam-to-Column connections with Rectangular Opening on Large H-Beam Web

대형 H형강 웨브에 사각 개구부를 갖는 보-기둥 접합부의 내진성능평가

  • Received : 2021.10.21
  • Accepted : 2022.03.30
  • Published : 2022.05.30

Abstract

This study aimed to evaluate the seismic performance of deep steel beams with rectangular openings. Test results showed that beam flange yielding was initially observed at a 1.5% story drift ratio, and this was followed by web yielding at a 2%~3% story drift ratio for most specimens. Then, beam flange buckling was observed at 3%~4%, followed by lateral torsional buckling. All specimens were tested until they reached a 6% story drift ratio, and at this stage, beam flange fracture was observed for specimens with a single rectangular opening. Normalized moment and total plastic rotation of beams with double rectangular openings showed a higher capacity when compared with those of solid specimens. All specimens were found to have the seismic performance of Special Moment Frames as specified by the steel structure Korea Design Standards.

Keywords

Acknowledgement

이 연구는 충남대학교 학술연구비(2021-0849-01)에 의해 지원되었음.

References

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