柱部材モデルを解析変数としたRC立体架構の性的弾塑性解析

概要

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Inelastic response of 3-D RC framescalculated for bi-axial strong motions is influenced by the member models in the analytical approach Fiber model which can take bi-axial bending and varying axial force into account and multi directional spring model in which hi-axial bending is cnsidered are adopted for column members, and 2-springs model which consists of two bending springs set in the direction of two principal axes is also used to avoid the effect of the multi directional stresses. The ratio of the vector of story shear force when the frame is deflected toward diagonal direction, to the story shear force of x-direction is about 1.3 regardless of bi-axial bending. The amplification factor of stresses in columns subjected to diagonal forces does not exceed the ratio of story shear force. The local damage to the base of the first story column is severe when the effect of bi-axial bending and varying axial forces is considered.
一般社団法人日本建築学会の論文
1996-03-20