Seismic displacement demand of bridge’s wall piers controlled by foundation rocking
سال انتشار: 1398
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 363
فایل این مقاله در 8 صفحه با فرمت PDF قابل دریافت می باشد
- صدور گواهی نمایه سازی
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
SECM03_231
تاریخ نمایه سازی: 9 شهریور 1398
چکیده مقاله:
Applying the effect of soil-structure-interaction on displacement demand of essential structures, like bridges in design or assessment procedures required enormous nonlinear dynamic time history analysis considering rocking and uplifting phenomena in foundations. In conventional bridges with strong wall pier, nonlinear mechanism are controlled by the foundation behavior and geotechnical capacity and in consequence nonlinear sources mainly concentrated in the level of soil and foundation. It is necessary to implement foundation nonlinear behavior in order to utilize linear analysis to determine seismic demand in these types of bridge. Displacement amplification factors mentioned in current codes are not able to consider foundation flexibility, rocking or uplifting phenomena. In this paper in addition to presenting the coefficient derived from solving SDOF system with the potential of rocking -uplifting, a case study bridge is investigated to compare proposed equation with the exact solution and determine their accuracy
کلیدواژه ها:
نویسندگان
Mohammad Khanmohammadi
Associate Professor of School of Civil Engineering, University of Tehran, Tehran, Iran
Sina Sayadi Moghadam
M.Sc. in Structural Engineering, School of Civil Engineering, University of Tehran, Tehran, Iran