کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6748445 | 1430173 | 2018 | 44 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dynamic soil stiffness for foundation piles: Capturing 3D continuum effects in an effective, non-local 1D model
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Dynamic soil stiffness for foundation piles: Capturing 3D continuum effects in an effective, non-local 1D model Dynamic soil stiffness for foundation piles: Capturing 3D continuum effects in an effective, non-local 1D model](/preview/png/6748445.png)
چکیده انگلیسی
A method is presented to accurately capture the 3D interaction phenomena of a foundation pile embedded in soil, in a computationally efficient non-local 1D model. It is shown how to extract the global stiffness kernels from simulations with the 3D inhomogeneous continuum, and implement them in a 1D non-local Winkler-type model that can subsequently serve as a stand-alone, condensed substructure. The presented method for obtaining the kernels removes the need to assume certain distributions for these functions. We show that the method is very versatile, and yields accurate results for a wide range of pile geometries and soil stiffness profiles, over the full depth of the embedded pile. For the dynamic case, the discretized global stiffness kernels (matrices) become complex-valued (they include soil stiffness, inertia and damping), and the 1D model proves to be capable of mimicking also the out-of-phase part of the response. The method being straightforward and fast, the engineering community is served the benefits of accuracy (3D model) and speed (1D model), without the need of empiric tuning.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Solids and Structures - Volume 134, 1 March 2018, Pages 272-282
Journal: International Journal of Solids and Structures - Volume 134, 1 March 2018, Pages 272-282
نویسندگان
W.G. Versteijlen, J.M. de Oliveira Barbosa, K.N. van Dalen, A.V. Metrikine,