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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Structural Engineering and Mechanics, An Int'l Journal Structural Engineering and Mechanics, An Int'l Journal Vol.55 No.6
- 발행연도
- 2015.1
- 수록면
- 1,177 - 1,202 (26page)
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In this paper, a new intensity measure of earthquakes for probabilistic seismic analysis is presented for skewed highway bridges. Three different cases of skewed bridges with different skew angles (0o, 30o and 45o) are considered. Well-known intensity measures (e.g., PGA, Sa) are evaluated and critically discussed based on sensitivity analysis: efficiency, practically, proficiency and sufficiency of intensity measures are considered in detail. The analyses demonstrated that the intensity measures have to take into account structural acceleration on a wide range of periods so that a new seismic intensity measure is proposed showing that it has less dispersion compared to others. Since the proposed intensity represents the average value of the Sa (between a lower and upper structural period) it has been called Averaged Spectral Acceleration (ASA). Based on performed incremental dynamic analysis (IDA), the seismic analytical fragility curves of typical skewed highway bridges have been evaluated for different states of damage controlling the low dispersion of the ASA index as well as its proficiency and sufficiency.
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참고문헌 (35)
참고문헌 신청
Abdel-Mohti, A. / 2013 / Effect of skew angle on seismic vulnerability of RC box-girder highway bridges / Int. J. Struct. Stab. Dyn 13(6):135~159
Alam, M. S. / 2012 / Seismic fragility assessment of SMA-bar restrained multi-span continuous highway bridge isolated by different laminated rubber bearings in medium to strong seismic risk zones / Bull. Earthq. Eng 10(6):1885~1909
Baker, J.W. / 2005 / A vector‐valued ground motion intensity measure consisting of spectral acceleration and epsilon / Earthq. Eng. Struct. Dyn 34(10):1193~1217
Baker, J.W. / 2006 / Spectral shape, epsilon and record selection / Earthq. Eng. Struct. Dyn 35(9):1077~1095
Baker, J.W. / 2006 / Vector-valued ground motion intensity measures for probabilistic seismic demand analysis
Alam, M. S. / 2012 / Seismic fragility assessment of SMA-bar restrained multi-span continuous highway bridge isolated by different laminated rubber bearings in medium to strong seismic risk zones / Bull. Earthq. Eng 10(6):1885~1909
Baker, J.W. / 2005 / A vector‐valued ground motion intensity measure consisting of spectral acceleration and epsilon / Earthq. Eng. Struct. Dyn 34(10):1193~1217
Baker, J.W. / 2006 / Spectral shape, epsilon and record selection / Earthq. Eng. Struct. Dyn 35(9):1077~1095
Baker, J.W. / 2006 / Vector-valued ground motion intensity measures for probabilistic seismic demand analysis
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