Open AccessElastic soil
Author(s) -
Athol J. Carr,
Peter Moss
Publication year - 1971
Publication title -
bulletin of the new zealand society for earthquake engineering/nzsee quarterly bulletin
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.917
H-Index - 36
eISSN - 2324-1543
pISSN - 1174-9857
DOI - 10.5459/bnzsee.4.2.258-269
Subject(s) - quadrilateral , structural engineering , plane stress , superposition principle , finite element method , stiffness , displacement (psychology) , plane (geometry) , representation (politics) , stress (linguistics) , acceleration , mode (computer interface) , geometry , engineering , mathematics , computer science , mathematical analysis , physics , classical mechanics , psychology , linguistics , philosophy , politics , political science , law , psychotherapist , operating system
This paper presents a refined finite element analysis for the analysis of two-dimensional plane stress and plane strain structures with particular emphasis being placed on the ability to solve problems of soil-structure interaction under earthquake loadings. The structure and
the soil are idealized as an assemblage of quadrilateral plane stress and plane strain elements having a cubic variation in displacement enabling a more accurate representation of the stiffness properties of the system than that previously available. The response of the system to the earthquake acceleration history is achieved by a superposition of normal mode responses and the methods of obtaining the mode shapes and frequencies are outlined. Examples are presented to illustrate the capability of this approach.