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The effects of peak ground velocity of near-field ground motions on the seismic responses of base-isolated structures mounted on friction bearings
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  • The effects of peak ground velocity of near-field ground motions on the seismic responses of base-isolated structures mounted on friction bearings
  • The effects of peak ground velocity of near-field ground motions on the seismic responses of base-isolated structures mounted on friction bearings
저자명
Tajammolian. H.,Khoshnoudian. F.,Talaei. S.,Loghman. V.
간행물명
Earthquakes and structures
권/호정보
2014년|7권 6호|pp.1259-1281 (23 pages)
발행정보
테크노프레스
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
서지반출

기타언어초록

This research has been conducted in order to investigate the effects of peak ground velocity (PGV) of near-field earthquakes on base-isolated structures mounted on Single Friction Pendulum (SFP), Double Concave Friction Pendulum (DCFP) and Triple Concave Friction Pendulum (TCFP) bearings. Seismic responses of base-isolated structures subjected to simplified near field pulses including the forward directivity and the fling step pulses are considered in this study. Behaviour of a two dimensional single story structure mounting on SFP, DCFP and TCFP isolators investigated employing a variety range of isolators and the velocity (PGV) of the forward directivity and the fling step pulses as the main variables of the near field earthquakes. The maximum isolator displacement and base shear are selected as main seismic responses. Peak seismic responses of different isolator types are compared to emphasize the efficiency of each one under near field earthquakes. It is demonstrated that rising the PGVs increases the isolator displacement and base shear of structure. The effects of the forward directivity are greater than the fling step pulses. Furthermore, TCFP isolator is more effective to control the near field effects than the other friction pendulum isolators are. This efficiency is more significant in pulses with longer period and greater PGVs.