ハイブリッド型応力法Timoshenkoはり柱要素について : (その2) 複合はり柱要素の構築とその応用

概要

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A simple and effective composite finite element for shear-deformable plane beam-column, which might be connected and/or supported with other structural elements, is developed. The present composite beam-column element is composed of stratiform cell elements and artificial Winkler's spring elements. wherein the latters are provided, in order to prevent the tangential displacement lag, between adjacent two formers. Hybrid stresss finite element based on the Timoshenko's theory shown in the previous report is employed in organizing the discrete cell elements. The artificial Winkler's spring elements are formulated using the standard displacement method. Also, geometrical constraints on lateral displacements to be identical in overall section of the beam-column are prescribed by the well-established finite element programme technique. From view point of the utility, the availability and the applicability of the present approach are discussed and examined. Several numerical tests are performed, and show that the present composite element has excellent capacity to simulate the more complicate behavior of the beam-column accompanied with the shear and the warping deformation.
2004-07-30