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苏联在第九个五年计划期间,对结构抗震理论与实用计算方法进行了大量研究工作。根据动力学模型试验建立的估计地震荷载计算值的现行方法,考虑了地基的运动和结构的变形。要定量地确定地震荷载,就必须先知道房屋的一些特征值(如房屋的自振周期、振型与阻尼等)。确定这些特征值需花很大功夫。 第九个五年计划期间已经完成估计各种类型房屋振动特征的试验研究工作,並在此基础
During the ninth five-year plan, the Soviet Union conducted a lot of research work on structural earthquake resistance theory and practical calculation methods. The current method of estimating earthquake load calculations based on dynamic model tests considers the movement of the foundation and the deformation of the structure. To quantitatively determine the seismic load, you must first know some of the characteristics of the house (such as the house’s natural vibration period, mode shape and damping, etc.). It takes a lot of effort to determine these characteristic values. During the Ninth Five-Year Plan period, the experimental research work to estimate the vibration characteristics of various types of houses has been completed and based on this