摘要
本文提供标绘阈值烈度的一个方法,该烈度超过在随后五十年中强地震动的等危险性谱值。文中阐明,基于等危险性谱(Anderson和Trifunac,1977,1978;Lee,1987)的地震小区划图怎样可用于计算阈值烈度,预期低于该烈度时经工程设计的结构应不发生破坏。阈值烈度图可用于:1.估计一个预测的地震的后果;2.使当地城市与州组织对于一个可能发生的地震的反应最优化。
This paper presents a method on mapping threshold intensities which exceed the uniform risk spectra of strong earthquake shaking during the next 50 years. It is shown how the seismic microzonation maps based on Uniform Risk Spectra (Anderson and Trifunac,1977;l978;Lee,1987) can be used to compute the threshold intensities below which no damage should be expected to engineered structures. Maps of threshold intensities can be used in (1) evaluation of the consequences of a predicted earthquake and in (2) optimization of the responses of local city and state organizations to an earthquake, which may occur.
出处
《地震工程与工程振动》
CSCD
北大核心
1989年第1期21-34,共14页
Earthquake Engineering and Engineering Dynamics
