高層鉄骨建物の固有周期の予測

概要

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This paper presents an investigation into the fundamental natural period of high-rise steel buildings. Based on a survey for high-rise steel buildings constructed previously, it is found that their fundamental natural periods (T_1) are given by T_1=0.026L on the average, with T_1 in sec and L as the building height in meter. Simple procedures to estimate the fundamental natural period of high-rise steel buildings are formulated using the Ritz method, and the effectiveness of the procedures is verified by applying the procedures to high-rise steel buildings designed previously. Finally, examination is given to the meaning of the relation: T_1=0.026L, and it is found that the fundamental natural period estimated by this equation is the period needed to ensure 1/200 in story drift angle under the base shear coefficient given by 1/(3T_1).
一般社団法人日本建築学会の論文
1992-03-20