変断面角形鋼管柱の終局強度

概要

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The ultimate strength of cantilever columns with tapered square hollow section under the combined action of axial thrust, biaxial bending moments and torsion is presented. A new elastic-plastic tangent stiffness matrix for steel members with closed thin walled section is used to investigate the behavior. The stiffness matrix uses the tangent coefficient matrix obtained by the numerical integration of the hardening moduli of the fibers about the member section to calculate the generalized plastic strain increments. The effect of torsion is considered in the fiber level using von Mises yield criterion. The ultimate strength of the member is defined by extending Horne's stability criterion. The results are presented in the form of interaction diagrams.
一般社団法人日本建築学会の論文
1992-03-20