FVD

This paper presents a seismic design method for existing buildings equipped with nonlinear fluid viscous dampers ( FVD ) .

本文结合抗震设计规范反应谱，给出了一个附加非线性流体粘滞阻尼器结构的抗震设计方法。

Using this formula we can calCulate the FVD on the ground and at any level above the ground directly .

该公式可以计算地面上的重力垂向一阶导数，还可以直接计算地面之上任意高度上的垂向一阶导数。

Consequently , a time history analytical method is employed to analyze the seismic responses of nonlinear frame structure equipped with FVD under disastrous and minute earthquake .

最后，应用本文方法，对设置FVD的非线性钢筋混凝土框架结构进行了在罕遇地震和多遇地震作用下的时程分析，并根据计算结果对其减震效果进行了分析讨论。

Using the Lagrange interpolation , we present a simple formula for calculating the first vertical derivative ( FVD ) of gravity anomaly and give the coefficients or calculating the FVD on and above the ground .

利用拉格朗日插值导出了重力异常垂向一阶导数的计算公式，给出了地面以及地面之上不同高度的求导系数。