せん断応力,せん断変形の影響を考慮したハイブリッド型応力法はり柱要素

概要

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A new and effective hybrid stress finite element method/procedure, based on the beam-column theory and considering the influence of shear stress and deformation, is presented. Using the equilibrium equation in the axial direction, and with aid of the iterative method, axial normal and shearing stress fields for the plane beam-column, which satisfy the point-wise equilibrium condition as well as the ones of the overall beam-column section, are prepared in expression of resultant stresses. According to the standard hybrid finite element procedure shown in Refs. 2) and 3), a new plane beam-column finite element with the present stress fields is derived. Also, unified calculation algorithm is shown and its availability and applicability are discussed. Several numerical tests are performed, and show that the present approach might be one of the most promising to investigate the elasto-plastic and collapse behavior of the plane frame structures with shear deformation.
一般社団法人日本建築学会の論文
2002-03-20