変動風圧力を受ける鉄塔の動的解析

概要

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Lately, from the measured datas of wind pressure fluctuation in the strong wind at Kawasaki coast, I had calculated the response value of displacement on single mass system, and defined the dynamical magnification K. This report is compare this K and dynamical magnification K' used the method of calculations that Davenport used any examples on the equivalent statical wind pressures. As a result of it, K is comparative nearly value to K', but the variation of dynamical magnification K caused by period of single mass system is less than K'. Next, I have showed the calculating method of response value of displacement caused by fluctuating wind pressures when the tower had subsitituted to the multi-mass system, and represented some examples on the transmisson tower that used for the meatsurment of fluctuating wind pressure, and Tokyo Tower. More-over, I had compared the calculating results of these xamples and measurement value of displacement of these towers in the strong winds. As a reault of it, the measurement values is less than the calculating value. But, when the any assumptions has established, these value is approach to nearly value. These assumption are coefficient of wind forces, cross-correlation of displacement, influence of conductors and others, and remained the these problems as the future studys.
社団法人日本建築学会の論文
1973-02-28