结构抗地震的研究是很重要的。实际上,地震运动直接输给建筑物的基础。各层楼板相应于基础运动的比值称为传递函数。本文给出了据传递函数识别模态参数的方法,并识别了天津市骨科医院模型的模态参数,还介绍了实验室内的模型实验方法。 Structural seismic research is very important. In fact, earthquakes are lost directly to the building’s foundation. Floor floor corresponding to the basic movement ratio is called the transfer function. This paper presents a method to identify modal parameters based on transfer function, identifies the modal parameters of Tianjin orthopedic hospital model, and introduces the experimental model in the laboratory.