《建筑抗震设计规范》第5.1.4条采用加速度反应谱计算地震作用。取加速度反应绝对最大值计算惯性力作为等效地震荷载F,F=αG,α为地震影响系数,G为质点的重力荷载代表值。规范中用曲线形式给出了α的确定方法,α曲线又称为地震反应谱曲线。
水平地震影响系数曲线 seismic effect coefficient curve
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最后,根据反应的结果提出不同类型场地的各设防水准的地震影响系数。
Finally, earthquake force based on maximum site acceleration and response spectrum to different design criterion for different type of site was determined.
如何分析基岩条件对地震影响系数的影响是地震安全评价的关键工作之一。
Therefore, the analysis of influence of base rock condition on earthquake affecting coefficient is necessary for earthquake security evaluation.
对两种不同控制律下变刚度半主动控制结构的地震影响系数进行了比较和分析。
Seismic influence coefficients of structures with active variable stiffness (AVS) systems, corresponding to two different control laws, are compared and analyzed.
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