접합부 회전성능에 따른 중간 철골 모멘트 골조의 내진성능 평가 - Ⅱ 원인 평가 및 대안Seismic Performance Evaluation According to Rotation Capacity of Connections for Intermediate Steel Moment Frames – II. Cause Evaluation and Alternative
- Other Titles
- Seismic Performance Evaluation According to Rotation Capacity of Connections for Intermediate Steel Moment Frames – II. Cause Evaluation and Alternative
- Authors
- 문기훈; 한상환; 하성진
- Issue Date
- Mar-2014
- Publisher
- 한국지진공학회
- Keywords
- Intermediate moment frame; Rotation capacity; Seismic performance; FEMA 695; Seismic design parameters
- Citation
- 한국지진공학회논문집, v.18, no.2, pp.105 - 115
- Indexed
- KCI
- Journal Title
- 한국지진공학회논문집
- Volume
- 18
- Number
- 2
- Start Page
- 105
- End Page
- 115
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/160426
- DOI
- 10.5000/EESK.2014.18.2.105
- ISSN
- 1226-525X
- Abstract
- This paper is the sequel of a companion paper (I. Performance Evaluation) evaluating the relation between the seismic performance ofsteel intermediate moment frames (IMFs) and the rotation capacity of connections. The evaluation revealed that the seismic performanceof IMFs having the required minimum rotation capacity suggested in the current standards did not meet the seismic performance criteriapresented in FEMA 695. Therefore, thepresent study evaluates the causes of the vulnerable seismic performance for steel IMFs andproposes alternatives to satisfy the seismic performance suggested in FEMA 695. To that goal, the results of nonlinear analysis, which arethe pushover analysis and the incremental dynamic analysis, are examined and evaluated. As a result, high-rise IMF systems are seen tohave the lower collapse margin ratio after connection fracture than row-rise IMF systems and, the actual response isfound to comparedtothedesign drift ratio acting on design load design. Finally, the minimum design load values are proposed to meet the seismicperformance suggested in FEMA 695 for IMF systems having vulnerable seismic performance.
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