In calculating the seismic force of high-rise steel structures, the periods should be multiplied by a reduction factor (0.9) to account for the stiffness due to non-structural elements.
在计算高层钢结构地震剪力时， 周期应乘以0.9 折减系数以考虑非结构构件对刚度的影响。
The relatively small reduction in stress intensity magnification factor with increasing stiffness of the stiffener.
随着加强肋刚度的增加，应力强度放大因子则相应有所减小。
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