円筒形屋根を支える剛な2ヒンジアーチに作用する風圧力並びに風荷重によって生じる応力の特徴

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This paper discusses properties of stress caused by wind pressures acting on stiff two-hinged arches supporting a barrel roof. Wind tunnel test was performed with a turbulence boundary layer wind at geometrical scale S=1/250, which correspond to flat terrain. Models of rectangular low-raise buildings with different raise-span ratios and span-height ratios were used in the test. The following are results of the study, (i) The distributions of mean stress and maximum stress of a stiff arch at the center of a barrel roof, in the same direction as the wind, are similar, (ii) The gust factor of load effects decreases as span ratio increases, (iii) The tendencies of gust factor of load effects are almost same as for flat roofs, (iv) The distributions of mean stress and maximum stress in the stiff arches at the gable ends are different when wind direction is parallel to the span and when wind direction is perpendicular to the span, (v) The stress behavior of stiff arches depends on the fluctuation of wind pressures acting on the barrel roof.
社団法人日本建築学会の論文
1997-06-30