第1剛性比が高層建物の耐震信頼性指標に及ぼす影響

概要

論文の詳細を見る
In the evaluation of seismic safety index for structures, it is important to take account of uncertainties inherent in earthquake motions and dynamic properties of structures. In this study, the seismic safety indices for three kinds of structural model, i.e. S, SRC and RC with three different patterns of the yield shear force coefficient are computed. Tri-linear restoring force characteristics are assumed for all models and the influence of the first stiffness ratio on the seismic safety index is examined in three cases for the first stiffness ratio al, i.e. 1)α_1=<α_1>^^^-σ, 2)α_1=<α_1>^^^-σ, 3)α_1=<α_1>^^^+σ. Values for <α_1>^^^-(mean) and σ(standard deviation) are those reported in previous researches. It can be concluded that the seismic safety index is smaller when α_1 is equal to <α_1>^^^-+σ for RC and SRC models, while it is less influenced by the variation of α_1 for S model.
一般社団法人日本建築学会の論文
1993-03-20