事实证明，地震动是多维的，结构反应也是多维的。
In fact, the earthquake excitation is multidirectional, so does the structure response.
多点地震动作用下结构随机地震反应的计算十分耗费时问。
The random response computation of structures under multiple-support excitations is a problem of time consumption.
在此基础上，进一步分析了地震动不确定性对结构反应的影响。
According to this, we further analyze the influence of the uncertainty on structural response.
核工程在地震动中的反应主要取决于地震动特性、地基土特征与结构特性三个方面。
The factors that influence on the response of nuclear structures include the properties of earthquake, soil and structures.
导管架海洋平台是一种空间结构体系，在多维地震动作用下的反应计算较为复杂。
The jacket offshore platform is a spatial structure, and the computation of its response to the multiple seismic excitations is complicated.
研究了地震动扭转分量引起的结构扭转反应并分析了其与整个结构反应的关联性。
Torsional response of structures arising from the torsional component of earthquake ground shaking has been investigated and its relevance in the overall structural response has been examined.
本文将QR法和样条加权残数法结合起来，求解高层框剪结构的地震动力反应。
In this paper, QR method and spline weighted residual method are combined to solve seismic responses of tall frame-shear wall structures.
通过对同一输电塔结构输入多种不同的地震动，研究了地震的随机性对输电塔结构地震反应的影响。
Employing different earthquake acceleration records, the influence of the stochastic behaviors of earthquakes on the structural seismic responses has been investigated.
工程结构的随机地震反应分析，常在频域中用到地震动的功率谱密度函数。
The power spectral density function of earthquake motion is usually used for the random response analysis of engineering structures in the frequency domain.
研究结果表明：在简谐地面加速度作用下，高频地震动也可以引起长周期结构产生很大的位移反应，且最大位移反应出现在结构的瞬态自由振动阶段。
It is concluded that the transient response to a high frequency harmonic ground motion can increase greatly the displacement response of structures, particularly for the long period structures.
第三，将爆破地震动加速度时程作为随机过程，对建筑结构物进行了随机振动反应理论分析；
Thirdly, assuming blasting seismic acceleration history is stochastic process, stochastic vibration response of structure is analyzed theoretically.
概述了国内外强震动观测的研究现状和结构地震反应观测台阵的研究情况。
The study situation of strong motion observation and structural seismic response observation is summarized.
比较全面地研究了在多维地震动作用下结构反应的组合问题，对各种组合方法进行了评价。
The combined problem of structural responses to multiple seismic ground motions is extensively analyzed and evaluated.
对安装有粘滞阻尼消能支撑的多自由度减震结构基于随机地震动模型的动力反应进行了研究。
The dynamic responses of a multi-degree of freedom seismic reduction structure with a viscous damped brace under a random earthquake motion model were analyzed.
本文将QR法和样条加权残数法结合起来，求解高层框剪结构的地震动力反应。先用QR法建立结构的振动方程，然后，用样条加权残数法来求解。
In this paper, QR method and spline weighted residual method are combined to solve seismic responses of tall frame-shear wall structures.
场地土层地震反应分析对确定上部结构的地震动输入模式和进行抗震安全性评价具有重要意义。
It is of great importance to consider seismic response analysis of site soil for determining ground motion input mode of the upper structure and the safety estimation of earthquake resistant.
场地土层地震反应分析对确定上部结构的地震动输入模式和进行抗震安全性评价具有重要意义。
It is of great importance to consider seismic response analysis of site soil for determining ground motion input mode of the upper structure and the safety estimation of earthquake resistant.
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