Effects of Behavior of The Super Structures on The Soil-Pile-Structure Interaction
محل انتشار: کنفرانس بین المللی پژوهش در علوم و مهندسی
سال انتشار: 1395
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 572
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شناسه ملی سند علمی:
ICRSIE01_725
تاریخ نمایه سازی: 25 آذر 1395
چکیده مقاله:
It is well known that the earthquake response of a pile-supported structure is strongly affected by the dynamic soil-pile interaction. In this paper, a three-dimensional soil-pile-a degree of freedom structure system with different stiffness is established by using sap2000 software to evaluate the effects of soil-pile-structure interaction in response of one degree of freedom structure. Nonlinear dynamic behavior of soil is modeled using Winkler Non-Linear model based on P-Y curves in the form of spring-damper systems. For this purpose, non-linear link elements in the software were used that p-y behavior of nonlinear springs is modelled by Multilinear-plastic links with Kinematic hysteretic behavior also, radiation damping is modelled by damper-bilinear element in sap2000 software that for modelling, the combination of these elements (spring-dampers in parallel) are used at a distance of 1 meter in length piles. The results showed that, considering soil-structure interaction in the dynamic analysis of the structure makes the period increases, which this increase in structures with various stiffness is different. Whatever structure-to-soil-stiffness ratio is more the increase in the period is more. From Comparison of the Acceleration response spectra of Tabas, El Centro and Loma Pierta earthquakes with 5% damping, we conclude that Structural response with considering the soil-pile-structure interaction and not, within the period of , are Close together and within the period of , are almost the same, Because of the high period of the structure that has high flexibility.
کلیدواژه ها:
Soil-Pile-Structure interaction ، P-Y curves ، spring-damper system ، Nonlinear dynamic behavior of soil
نویسندگان
Ali Komak Panah
Associate Prof., Department of Soil and Foundation Engineering, Faculty of Civil and Environmental Engineering Tarbiat Modares University,
Aylin Nouri
M.Sc Student of Geotechnic-Civil Engineering, Department of Soil and Foundation Engineering, Faculty of Civil and Environmental Engineering Tarbiat Modares University,
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