平面排架周期影响因素探讨

Discussion on period effect factors of the plane frame

平面排架的自振周期和相应厂房的实测自振周期相差较大，对动力反应有重要影响．本文通过实测资料、平面排架和空间模型计算数据的对比分析，指出影响结构自振周期的主要是山墙、屋面刚度和厂房长度。

Great difference is observed between periods of one storey factory building and its corresponding plane frame affecting the dynamic response. The causes of such difference are discussed by comparing the measured and calculated data of plane and corresponding space frames. The gables and roof stiffness and building length are the main effects on the period. The calculating errors can not be corrected by one factor alone.