Study on behavior of concrete filled elliptical steel tube members part II: Under bending and eccentric compression
Group and Organization Management(2013)
Abstract
In this paper, based on the ideology of "unified theory", the theoretical calculation equations of ultimate flexural capacity for concrete filled elliptical steel tube members (CFEST) around long and short axes are derived and compared with and verified by finite element simulations. Modified equations are then proposed for practical applications on the basis of the flexural capacity for circular concrete filled steel tube members. Under the guidance of "unified theory" and parametric analysis, the simplified practical calculation equations of capacity for CFEST members under eccentric compression are obtained, and mechanical behavior of a series of CFEST members with different section dimensions is conducted using finite element analysis.
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Key words
Bending,Eccentric compression,Elliptical concrete filled steel tube,Finite element,Parametric analysis,Unified theory
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