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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.70 No.2
- 발행연도
- 2019.1
- 수록면
- 143 - 152 (10page)
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초록· 키워드
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In this study, stochastic responses of a cable-stayed bridge subjected to the spatially varying earthquake ground motion are investigated for variable local soil cases and wave velocities. Quincy Bay-view cable-stayed bridge built on the Mississippi River in Illinois, USA selected as a numerical example. The bridge is composed of two H-shaped concrete towers, double plane fan type cables and a composite concrete-steel girder deck. The spatial variability of the ground motion is considered with the coherency function, which is represented by the components of incoherence, wave-passage and site-response effects. The incoherence effect is investigated by considering Harichandran and Vanmarcke model, the site-response effect is outlined by using hard, medium and soft soil types, and the wave-passage effect is taken into account by using 1000, 600 and 200 m/s wave velocities for the hard, medium and soft soils, respectively. Mean of maximum response values obtained from the analyses are compared with those of the specific cases of the ground motion model. It is concluded that the obtained results from the bridge model increase as the differences between local soil conditions cases of the bridge supports change from firm to soft. Moreover, the variation of the wave velocity has important effects on the responses of the deck and towers as compared with those of the travelling constant wave velocity case. In addition, the variability of the ground motions should be considered in the analysis of long span cable-stayed bridges to obtain more accurate results in calculating the bridge responses.
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참고문헌 (29)
참고문헌 신청
Süleyman Adanur / 2017 / Wave-Passage Effect on the Seismic Response of Suspension Bridges Considering Local Soil Conditions / International Journal of STEEL STRUCTURES 17(2):501~513
Allam, A. M. / 2010 / Multiple-support excitations of open-plane frames by a filtered white-noise and soil-structure interaction / J. Sound Vibr 329(20):4212~4226
Allam, S. M. / 1999 / Seismic behavior of cable stayed bridges under multi-component random ground motion / Eng. Struct 21(1):62~74
Ates, S. / 2005 / Stochastic response of seismically isolated highway bridges with friction pendulum systems to spatially varying earthquake ground motions / Eng. Struct 27(13):1843~1858
Şevket Ateş / 2018 / Eff ectiveness of Soil–Structure Interaction and Dynamic Characteristics on Cable-Stayed Bridges Subjected to Multiple Support Excitation / International Journal of STEEL STRUCTURES 18(2):554~568
Allam, A. M. / 2010 / Multiple-support excitations of open-plane frames by a filtered white-noise and soil-structure interaction / J. Sound Vibr 329(20):4212~4226
Allam, S. M. / 1999 / Seismic behavior of cable stayed bridges under multi-component random ground motion / Eng. Struct 21(1):62~74
Ates, S. / 2005 / Stochastic response of seismically isolated highway bridges with friction pendulum systems to spatially varying earthquake ground motions / Eng. Struct 27(13):1843~1858
Şevket Ateş / 2018 / Eff ectiveness of Soil–Structure Interaction and Dynamic Characteristics on Cable-Stayed Bridges Subjected to Multiple Support Excitation / International Journal of STEEL STRUCTURES 18(2):554~568
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