Ar. Kukreti et Za. Siddiqi, ANALYSIS OF FLUID STORAGE TANKS INCLUDING FOUNDATION-SUPERSTRUCTURE INTERACTION USING DIFFERENTIAL QUADRATURE METHOD, Applied mathematical modelling, 21(4), 1997, pp. 193-205
Citations number
27
Categorie Soggetti
Operatione Research & Management Science",Mathematics,"Operatione Research & Management Science",Mathematics,Mechanics
A differential quadrature solution for the flexural behavior of a cyli
ndrical storage tank resting on an isotropic elastic soil medium is pr
esented. The interface between the plate foundation and the soil half
space is considered to be perfectly smooth and continuous. Zeros of Le
gendre polynomials are taken as the quadrature points. The procedure a
utomatically fits a polynomial of a degree one less than the number of
points considered to model the expected response. The procedure accou
nts for the interaction between the tank wall and the plate foundation
using slope and moment compatibility. It also accounts for the intera
ction between the plate foundation and the soil medium using the conta
ct stress equation for the elastic half space. The results obtained co
mpare well with the finite element analysis of a similar problem, but
with much less computational efforts. Results of a parametric study ar
e also presented to demonstrate the effect of the various geometric an
d material parameters on the flexural response of the system. (C) 1997
by Elsevier Science Inc.