000020133 001__ 20133
000020133 005__ 20170118182356.0
000020133 04107 $$aeng
000020133 046__ $$k2017-01-09
000020133 100__ $$aSayyadpour, Hadi
000020133 24500 $$aThe Near-Field Method: a Modified Equivalent Linear Method for Dynamic Soil-Structure Interaction Analysis

000020133 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000020133 260__ $$b
000020133 506__ $$arestricted
000020133 520__ $$2eng$$aIn this research the problem of soil-structure interaction analysis with the direct method is studied. The direct method consists of modeling the superstructure and the underlying soil domain. Using a reduced shear modulus and an increased damping ratio resulted from an equivalent linear free-field analysis is a traditional approach for simulating behavior of the soil medium. However, this method is not accurate enough in the vicinity of foundation, or the near-field domain, where the soil experiences large strains and the behavior is highly nonlinear. This research proposes new modulus degradation and damping augmentation curves for using in the near-field zone in order to obtain more accurate results with the equivalent linear method. The mentioned values are presented as functions of dimensionless parameters controlling nonlinear behavior in the near-field zone. This paper summarizes the semi-analytical methodology and the numerical implementation and examples of the proposed modified equivalent linear procedure.

000020133 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000020133 653__ $$asoil-structure interaction; equivalent linear; near-field; shear modulus; damping.

000020133 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000020133 720__ $$aSayyadpour, Hadi$$iBehnamfar, Farhad
000020133 8560_ $$ffischerc@itam.cas.cz
000020133 8564_ $$s507571$$uhttps://invenio.itam.cas.cz/record/20133/files/62.pdf$$yOriginal version of the author's contribution as presented on USB, paper 62.
000020133 962__ $$r16048
000020133 980__ $$aPAPER