目前在多层框架房屋的动力计算中,一般不考虑空间刚度的影响,有关实测分析表明,当房屋两个主轴方向尺寸相差较大,而房屋的楼板刚度较小时,楼板变形是不能忽略的,因此,在动力计算时需要考虑房屋空间刚度的作用。文献[1]对计算等截面(即每层的面积、质量和刚度均相等) 多层框架房屋的自振特性建立了比较简明的公式。但是,一般工业 At present, in the dynamic calculation of a multi-story frame house, the influence of the space stiffness is generally not considered. The actual measurement analysis shows that when the two main shafts have large differences in the direction dimensions and the floor stiffness of the house is small, the floor deformation cannot be ignored. Therefore, it is necessary to take into account the effect of spatial rigidity of the house when calculating power. The literature [1] has established a relatively concise formula for calculating the natural vibration characteristics of multi-story frame houses with equal section (ie, the area, mass, and stiffness of each layer are equal). However, general industry