کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4927391 | 1431704 | 2016 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Computation of degradation factors of p-y curves in liquefiable soils for analysis of piles using three-dimensional finite-element model
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
مهندسی ژئوتکنیک و زمین شناسی مهندسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Computation of degradation factors of p-y curves in liquefiable soils for analysis of piles using three-dimensional finite-element model Computation of degradation factors of p-y curves in liquefiable soils for analysis of piles using three-dimensional finite-element model](/preview/png/4927391.png)
چکیده انگلیسی
This paper presents a procedure to compute the values of degradation factors of p-y curves in the pseudo-static analysis of piles in liquefiable soils. Three-dimensional finite-element model was used for the computation of p and y values using OpenSees computer package. The piles were modeled using beam-column elements and elastic section. The soil continuum was modeled using brick elements and a two-surface plasticity model. By comparing the results of models in two cases of liquefiable and non-liquefiable, values of degradation factors were obtained. Validation of the degradation factors computed was conducted through the centrifuge test results. The simulation results showed a similar trend between degradation factor variation in different densities and sands. With increasing depth, the degradation factor increased. By comparing the results of pseudo-static analysis with the centrifuge test results, it was concluded that the use of the p-y curves with computed degradation factors in liquefiable sand gave reasonable results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Soil Dynamics and Earthquake Engineering - Volume 89, October 2016, Pages 61-74
Journal: Soil Dynamics and Earthquake Engineering - Volume 89, October 2016, Pages 61-74
نویسندگان
Asskar Janalizadeh Choobbasti, Ali Zahmatkesh,