A numerical model for the transient analysis of offshore foundations under cyclic loading

被引：49

作者：

Cuellar, Pablo ^{[1
]}

Mira, Pablo ^{[2
,5
]}

Pastor, Manuel ^{[3
]}

Fernandez Merodo, Jose A. ^{[4
]}

Baessler, Matthias ^{[1
]}

Ruecker, Werner ^{[1
]}

机构：

[1] BAN1 Fed Inst Mat Res & Testing, Div Bldg & Struct 7 2, D-12205 Berlin, Germany

[2] CEDEX Ctr Estudios & Expt Obras Publ, Lab Geotecnia, Madrid, Spain

[3] Univ Politecn Madrid, ETS Caminos Canales & Puertos, Madrid, Spain

[4] IGME Inst Geol & Minero Espana, Madrid, Spain

[5] Univ Politecn Madrid, ETS Ingn Civil, Madrid, Spain

来源：

COMPUTERS AND GEOTECHNICS | 2014年 / 59卷

关键词：

Offshore foundations; Cyclic loading; Numerical model; Pore pressure accumulation; Liquefaction analysis; DYNAMIC-BEHAVIOR; PLANE-STRAIN; EQUAL-ORDER; CONSOLIDATION; LAYER; FORMULATION; ELEMENT; SYSTEMS;

D O I：

10.1016/j.compgeo.2014.02.005

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

A comprehensive numerical model for the analysis of offshore foundations under a general transient loading is presented here. The theoretical basis of the model lies on the Swansea formulation of Biot's equations of dynamic poroelasticity combined with a constitutive model that reproduces key aspects of cyclic soil behaviour in the frame of the theory of generalised plasticity. On the practical side, the adoption of appropriate finite element formulations may prevent the appearance of spurious numerical instabilities of the pore pressure field. In this respect, the use of a coupled enhanced-strain element is here proposed. On the other hand, the practicality of the presented model depends ultimately on its computational efficiency. Some practical recommendations concerning the solution strategies, the matrix storage/handling procedures and the parallel multi-processor computation are here provided. Finally, the performance of the model with a benchmark study case and its practical application to analyse the soil-structure interaction of an offshore monopile under a realistic transient storm loading are discussed. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：75 / 86

页数：12

共 57 条

[21] A NEW FINITE-ELEMENT FORMULATION FOR COMPUTATIONAL FLUID-DYNAMICS .5. CIRCUMVENTING THE BABUSKA-BREZZI CONDITION - A STABLE PETROV-GALERKIN FORMULATION OF THE STOKES PROBLEM ACCOMMODATING EQUAL-ORDER INTERPOLATIONS
HUGHES, TJR
FRANCA, LP
BALESTRA, M
[J]. COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING, 1986, 59 (01) : 85 - 99
[22] Ishihara K., 1982, Soils and Foundations, V22, P109, DOI [https://doi.org/10.3208/sandf1972.22.3109, DOI 10.3208/SANDF1972.22.3109, 10.3208/sandf1972.22.3_109, DOI 10.3208/SANDF1972.22.3_109]
[23] Ishihara K., 1996, Soil behaviour in earthquake geotechnics
[24] Kagawa T., 1986, P INT C NUM METH OFF, P417
[25] A UNIFIED SET OF SINGLE STEP ALGORITHMS .3. THE BETA-M METHOD, A GENERALIZATION OF THE NEWMARK SCHEME
KATONA, MG
ZIENKIEWICZ, OC
[J]. INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING, 1985, 21 (07) : 1345 - 1359
[26] Foundations for offshore wind energy converters - Recommendations for concept and design
Lesny, Kerstin
[J]. BAUTECHNIK, 2008, 85 (08) : 503 - 511
[27] Mahtab M.A., 1970, PROC 2 C INT SOC ROC, V3, P353
[28] Manguoglu M, 2009, LECT NOTES COMPUT SC, V5704, P797, DOI 10.1007/978-3-642-03869-3_74
[29] MARTIN GR, 1980, J GEOTECH ENG-ASCE, V106, P981
[30] A new stabilized enhanced strain element with equal order of interpolation for soil consolidation problems
Mira, P
Pastor, M
Li, T
Liu, X
[J]. COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING, 2003, 192 (37-38) : 4257 - 4277

← 1 2 3 4 5 6 →