目前一维场 地地震反应分析方法和程序很多，其中，等效线性化方法（Equivalent Linear Method，EQLM）是目前研究和工程中最常用的方法12ll。根据EQLM原理编制的 计算程序（SHAKE系列【22。
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According to the data of dynamic property of the site soil, the design ground motion parameters of the different level are calculated by the equivalent linear method.
采用一维等效线性化方法，根据场地土动力性能试验资料，确定不同抗震标准下的设计地震动参数。
The energy release rate and failure criterion for mixed mode are investigated by means of the method of equivalent linear crack extension.
利用当量直线裂纹扩展法研究复合型裂纹的能量释放率及相应的断裂判据。
Two methods have been presented in this paper to treat this case. They are tangent method and minimum equivalent linear damping method. Their relation has been found, too.
为此，本文提出了两种处理方法，即切线法和最小当量线性阻尼法，并找出了它们的关系。
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