震动加速度

应用四阶基数B－样条小波来模拟地震动加速度过程，将小波分析引入了地震动加速度过程的研究。

This paper uses 4th order cardinal B-spline wavelets to the simulation of the acceleration process of earthquake ground motion and introduces wavelet analysis to the earthquake ground motion acceleration .

地下工程设计地震动加速度幅值变化研究

Variations of seismic design acceleration amplitude with depth for underground structures

近断层地震动加速度峰值衰减规律的研究

Research on attenuation of near-fault peak strong ground motion acceleration

地震动加速度过程的四阶基数B-样条小波模拟

Fourth-order cardinal B-spline wavelets for the simulation of earthquake ground motion acceleration

地震动加速度反应谱竖向分量与水平分量的比值

The ratios of vertical to horizontal acceleration response spectra

本文介绍爆破震动加速度的观测。

This paper presents the results of measuring the acceleration of blasting vibration .

小间距平行隧道爆破震动加速度测试

Ground Vibration Acceleration Test in the Blasting of a Small Spacing Parallel Tunnel

基岩输入地震动加速度时间过程的人工合成；

Synthesis of acceleration time while seismic oscillation is input to the bedrock ;

汶川8.0级地震强震动加速度记录的初步分析

The preliminary analysis of strong ground motion records from the M_s 8.0 Wenchuan Earthquake

缺乏地震动加速度记录地区地震动估计的映射法

A method for evaluation of ground motion in regions with few acceleration observation data

地震动加速度过程的小波模拟

Wavelets simulation for earthquake ground motion acceleration

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 .

并具体探讨了土层放大系数与输入地震动加速度峰值的关系。

After detailed analysis , the relationships between the amplification coefficient and the maximum acceleration peak value of input ground motion is given .

抗震设计谱是以地震动加速度反应谱特性为依据，经统计和平滑化处理确定的。

The seismic design spectra are established based on the characteristics of earthquake acceleration response spectra , together with consideration of experiences and economy .

输入地震动加速度反应谱、速度反应谱和位移反应谱的影响，结果表明加速度反应谱的卓越周期、速度反应谱和位移反应谱的某些特点对土石坝的地震影响很大；

Besides the predominant period of acceleration response spectrum , some characteristics of velocity and displacement spectrum have important influence of the seismic response .

关于基岩输入地震动加速度的功率谱密度函数，考虑了两种形式：白噪声谱和有色谱。

Two cases of power spectral intensity function for the earthquake acceleration input at the base rock is considered : the white noise spectrum and the coloured spectrum .

通过对这些地震动加速度记录的进行分类，并分析地震动记录的基本特性，指出了地震动的三个基本要素及其评价参数的意义。

By classifying the records and analyzing the basic characteristics of the records , three basic elements of ground motion and the meaning of its parameters are elaborated .

数值计算和实验测量的结果表明：对具有破坏性的地震，安装该隔震器后的低层建筑物可削减地震动加速度达80%以上。

The numerical and experimental results show that if subjected to destructive earthquake , the acceleration of low structures installed the new isolators can be decreased by more than 80 percent .

具体内容如下：1.本文对数字强震记录系统进行了误差分析；对近场强震动加速度记录的校正处理方法进行了系统的研究；并且对加速度记录的校正准则进行了论述。

Research specifics are as follow : 1 . Analyzed the error in digital strong motion seismograph , and studied the correction method of near field strong motion acceleration records . 2 .

研究了土层的随机地震反应分析方法，建立了基岩输入地震动加速度功率谱函数为白噪声和过滤白噪声时土层的动力可靠度计算理论。

When seismic acceleration power spectrum of bedrock input are white noise and filter white noise , the theory of dynamic reliability calculation for the random seismic response of soil layers is proposed .

地震输入强度对换能效率影响较大，当输入地震动加速度峰值较大时，换能效率可达70-80%；

The input earthquake acceleration intensity has obvious effect on the energy transition efficiency . With high acceleration peak value of the earthquake excitation , the energy transition efficiency reaches 70 percent or more .

在用确定的介质模型和设计震源计算地震动加速度的同时，采用在震源参数中引进随机扰动量、对大量模型样本作统计分析的方法进行处理。

The ground motions are computed for specific source and medium models . The random disturbance quantity is introduced into the source parameters , and a statistical analysis for a large number of estimators is made .

为分析场地条件对地震动加速度反应谱的影响，本研究采用一维等效线性化方法计算场地土层地震反应。

It shows that the most of all site in Shandong is ⅱ and ⅲ . In order to analyse the influence of site condition to ground motion acceleration response spectrum , the study adopt one-dimensional equivalent linear method calculating seismic response of soil sites .

对近断层地震动加速度峰值比、反应谱峰值周期比和规准反应谱比进行了讨论，以近断层水平向抗震设计谱为参照，给出了近断层竖向设计谱与水平向设计谱的对应关系。

The ratios of peak acceleration , peak response spectra period and the normalized response spectra for near-fault region are discussed . According to the horizontal seismic design spectra , the corresponding relations between vertical and horizontal seismic design spectra for near-fault region are established . 4 .

滨海软土场地对地震动加速度的幅值和频谱的影响非常明显，其对峰值加速度的放大倍数较高，但受土的非线性变形影响，随地震动输入的增大其放大倍数呈非线性降低；

The seashore soft soil puts a remarkable effect on the magnitude and spectrum of the ground motion , the acceleration is bigger magnified up , due to the nonlinear deformation of the soil , the amplification factor is reduced nonlinearly with the increase of ground motion input ;

研究了剪切模量随深度呈线性变化时场地土的随机地震反应分析方法，分别建立了基岩输入地震动加速度功率谱函数为白噪声和过滤白噪声时场地土的随机地震反应分析理论。

The random seismic response analysis method of soil in site when its shear modulus changes linearly with the depth is studied and the random seismic response analysis theory of soil in site when seismic acceleration power spectrum of bedrock input are white noise and filter white noise is proposed .

通过地震危险性概率分析计算，认为只有当潜在震源区中心点离场点距离（R）很近时，潜在震源区面积越小，地震烈度、地震动峰值加速度越大；

Through seismic risk probability analysis , some useful results are obtained : when the distance ( R ) between construction site and center of potential seismic source area is very near , the smaller potential seismic source area is , the bigger seismic magnitude or peak acceleration ;

反之，结论相反，并且当R＞40km时，潜在震源区范围不确定性对地震烈度、地震动峰值加速度的影响很小；

On the other hand , the result turns out contrary , and when R > 40km , the uncertainty influences of potential seismic source area are very few on seismic magnitude or peak acceleration ;

详细论述了一种从TM/ETM+遥感影像图提取群体建筑物专题信息并创建群体建筑物栅格的方法，以及场地地震动峰值加速度（PGA）衰减栅格、工程场地条件栅格的创建方法。

The detail technique of this simulation , including extraction of specialist information of swarm building from Landsat TM / ETM + image and creating PGA attenuating grid and worksite condition grid has also been discussed in this paper .

近年来的强震记录表明，4-5级地震产生的地震动峰值加速度很可能会达到0.05g的最低抗震设防标准。

Strong motion records show that the moderate earthquake with magnitude smaller 5.0 can cause strong ground motion ( PGA exceeds 0.05g ) .