変形応答テンソル場で見た捩れ効果の通性と現行耐震設計規定

概要

論文の詳細を見る
A tensorial understanding of deformation is advantageously used for characterizing significant trends in the coupled lateral and torsional response of structure developed on the horizontal plane. Featured by its unsophisticated nature, the generalized formulation can permit to account for the somewhat involved factors of two-way eccentricity and close modal coupling in addition to the two-dimensional action of earthquake shakings. Existence of markedly simple geometric rules highlights the tensor field of pointwise two-dimensional drifts. The study is then intended to obtain thoroughgoing numerical insights into an entire scope of the elementary problem of one-way eccentricity. Two dimensionless system parameters become relevant to the restricted situations, the corresponding plane of which is chosen for a field of in-depth quantitative examinations concerning important torsional effects in response as well as modal parameters. The results obtained therein are subsequently interpreted to illustrate individual limitations that are found in various earthquake-resistant codes used currently for practical design purposes.
一般社団法人日本建築学会の論文