[提要]  对多层和高层建筑结构抗震设计中底部剪力系数与基本自振周期的关系进行探讨，求出质量和刚度沿高度均匀分布的三种类型结构在不同基本白振周期时的底部剪力系数。
[关键词]  基本自振周期  底部剪力系数  连续化处理

The relationship of shear force coefficient of hottom and basic natural frequency used in aseismatic design of multistory and high-rise building is discussed.  'rhe different shear force coefficients of bottom are calculated, which correspond to the different natural frequencies of three types of structures belonging to the uniform distribution of both quality and rigidity along the building height。
Keywords:  basic natural frequency; bottom; shear force coefficient; continuous processing