梁降伏型RC構造物の層間変形分布及びヒンジ部材の損傷予測

概要

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A weak-beam yielding mechanism is generally recommended for the structural design of buildings. The purpose of this paper is to estimate the distribution of the maximum story deformation and the extent of damage on hinged members, which is important for the performance based design, through maximum rotation angle and cyclic number. The maximum displacement of top floor for multistory frame structures (MFS) is estimated from single degree of freedom system (SDOF) with the same mass and a first yielding period as those to MFS. The deformation distribution and maximum story drift angle are estimated by using with the deformation distribution of the first mode. The interrelation of time-history response between the equivalent SDOF and the multistory hinged members are widely investigated, where the maximum rotation angles of weak-beam are estimated from the maximum story drift. It is concluded that there are strong relations between them and from SDOF, the estimations of the story deformation distribution and maximum rotation angle including cyclic behavior of weak-beam are possible.
一般社団法人日本建築学会の論文
2002-03-20