X型制振プレース付剛節架構の機構と弾塑性性状について : (その1)引張接合型プレース架構

概要

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In the previous papers, we presented a new effective hysteretic damper and showed it had good restoring force characteristics and enough energy absorption capacity for a severe earthquake ground motion. In this paper, a tension connected braced frame with the hysteretic damper is proposed. The various kinds of loading tests and F.E.M. analyses of one story - one bay scaled frames with the hysteretic damper are performed for verifying the mechanism of the present frame and clarifying the required sectional properties of the brace member. It shows that the tension connected braced frame with the hysteretic damper has a good mechanism, which prevent compressive axial force in the brace, and therefore the brace buckling is not occurred even if the brace has relatively large slenderness ratio. So that the repeated, large drift of the frame causes no hysteresis loop deterioration of the damper.
1999-01-30