Mathematical Models for Nonlinear Soil Behavior


Actually, the seismic movement has an irregular cyclic character.This can be equivalent to a determined number of uniform cyclical stresses equivalent in terms of effect.

Modeling the behavior of the soil to cyclical stress, is usually done, by establishing a relationship for primary loading like τ = f (γ) and after drawing the diagram “effortless strain curve”, in which τ is the stress, and γ is shear deformation. For modeling nonlinear behavior of the soil, we used like nonlinear models. The best known are the hyperbolic model and the Ramberg-Osgood model.

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  • [1]. C. BEREVOESCU: “Efecte ale interactiunii seismice teren-structura la constructii ingropate si partial ingropate”, Teza de doctorat, UTCB, 2000;

  • [2]. C. BEREVOESCU, M. STEFANICA: “Modele matematice de calcul pentru comportarea neliniara a pamantului exprimata prin curba efort-deformatie”,UTCB, Conferinta Nationala de Cai Ferate, 25.10. 2017;

  • [3]. ANDREI. S.: “Cercetari privind stabilirea parametrilor dinamicipe baza analogiei dintre pamanturi”, ICB, 1993;

  • [4]. HARDIN, B.O., DRNEVICH, V.P.: “Shear Modulus and Dumping in Soils: Measurement & Parameter Effects”, SMFD, ASCE, 98/1972;

  • [5]. ICH Bucuresti: “Studiul influentei terenului asupra solutiei de fundare in cazul terenurilor coezive (CNE tip CANDU)”, Contract nr. 807/1987;

  • [6]. INCERC Bucuresti: “Normativ pentru proiectarea fundatiilor”, Contract nr. 40/1995;

  • [7]. RICHART, F.E. Jr.: “Some Effects of Dynamic Soil-Structure Interaction”, Proceeding of ASCE, vol. 101, 1975.

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