Possible methods of use "last time" in the analysis of steel tanks Lrz·hyy

Tanks containing liquids behave under earthquake, according to their importance There also due to interaction between fluid and Saz·hyy system, attention And study of many engineers and researchers have been. The method of "time Durable Footnote {endurance Time}», structures affected by accelerated intensity function Is being increasingly based on time and function that can force And to tolerate incoming Tghyyrmkanhay is assessed. The aim of this project Examine how the effect of earthquakes on steel tanks in accordance with the regulations Rvzmyny Design of the tanks), such as API and AWWA (and last time using the Rvzmyny tanks and reservoirs in the study of the behavior of this method is the standard range. Also, the results of last time with other methods methods Yynnamhyy The comparison, and rate design in order to adapt this method Lrz·hyy anks Rvzmyny steel with other methods is Yynnamhyy review. The study After review of the relevant egulations and mechanical models used The Codes, using the finite element method, dynamic response Mharshdh flexible tanks under earthquake input record is read. For this purpose the whole environmental and structural omponents with degrees of freedom given by Fluid Shift model and interaction between structural and fluid equations given by Adverb was provided. Modeling in the form of axial symmetry, harmonic And three dimensions, the profile of one of the tanks were used Astvanhyy Compactibility and viscosity effects) viscosity (the fluid within the reservoir in Was.