Consequently, it is necessary to describe earthquake ground motion with local spectral density, which is time-dependent and can reflect the non-stationary characteristics.
因此采用能反映时频非平稳特性的时变谱密度(即局部谱密度)来描述地震地面运动是非常必要的。
But in this paper, we lay emphasis only upon analyzing the influence of soil layer characteristics on ground motion.
本文着重考虑了土层的特性对地面运动的影响。
The design ground motion time histories was synthesized for the Shahuan Nuclear Power Plant Site according to the characteristics of the site and the specifications of input motion in the paper.
本文根据广东沙环核电厂厂址地震地质环境特点和有关核法规的技术要求完成了设计地面运动时程的人工合成。
This paper studies the Characteristics of the first three spectral moments for the response of linear systems under the space-interrelated ground motion model and an analytical method.
本文研究了在空间相关地面运动数学模型下线性体系振动反应的前三阶谱矩的特点和它们的解析计算方法。
It illustrated the similarities and differences between earthquake and wind by introduced and compared the input parameters of ground motion and wind characteristics.
地震和风特性的异同决定了输入的特性参数的异同，决定了采用计算方法的异同。
Then some rules are presented: the frequency characteristics, acceleration peak value of the input ground motion have great influence on the seismic response of composite foundation.
结果表明：输入地震动的强度和频谱特性对复合地基地震效应影响较大；
In this paper, the motion characteristics of camel foot when camel travels on level sand ground were studied.
研究了骆驼在平坦沙地行走时驼足的运动特性。
The analysis method that can exactly reflect the characteristics of ground motion transmitting is the basis for describing seismic response of rock mass.
真实反映地震动传播特性的分析方法是准确描述岩体地震反应的基础。
The results indicate that the presented method could illuminate the saturation effect in near field and attenuating characteristics of strong ground motion in far field from large earthquake.
结果表明，建议的方法能反映近场强震地震动饱和的效应和大震远场衰减的特点。
In this paper, we use the digital broad-band records to study the characteristics of long-period ground motion.
为研究长周期地震动反应谱特性，本文首次采用了地震学研究所使用的宽频带数字地震记录作为数据基础。
The method of generating seismic wave by superposing impulse component and wide band component is used to study the interaction characteristics of near-filed ground motion in this paper.
运用脉冲分量与宽频分量叠加合成地震波的方法，来研究近场地震动的作用特性。
The method of generating seismic wave by superposing impulse component and wide band component is used to study the interaction characteristics of near-filed ground motion in this paper.
运用脉冲分量与宽频分量叠加合成地震波的方法，来研究近场地震动的作用特性。
应用推荐