In order to study earthquakes, scientists deploy seismometers to measure ground motion.
为研究地震，科学家采用地震仪来记录大地运动。
Results of this paper can be used as reference for estimation of attenuation law of ground motion parameters in other regions of China.
本文结果也可供推导我国其它地区的地震动参数衰减规律时参考。
Researching the influence of local irregular topography on ground motion is one of the most important problems in earthquake engineering.
研究地震时局部地形对地面运动的影响是地震工程学的重要课题之一。
Attenuation laws of earthquake ground motion.
地震动衰减关系。
These results may be used to simulate the multi -point ground motion as reference.
分析结果可供多点地震动模拟时参考。
Then, a seismic design method considering the effect of strong ground motion duration is presented.
从以上结果出发，本文提出了一个考虑地震中不同持续时间影响的抗震设计方法。
As the intensity index of ground motion, PGA (peak ground acceleration) is often employed and analyzed.
作为地震动强度指标，峰值加速度一直是研究最多的物理量。
By introducing composite inversion ideas, the problem of ground motion inversion is studied in this paper.
本文运用复合反演的观点研究结构参数未知条件下的地震动反演问题。
So studying of the envelope function of the practical ground motion acceleration records is very important.
因此，研究实际地震动时程强度包络函数的特性，对合理模拟地震动时程具有重要的意义。
It is pointed out that the multiple way design ground motion is of great importance to the seismic structures.
指出多途径设计地震动对于抗震结构具有重要意义。
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。
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。
In this paper, a method of predicting ground motion parameters for regions with poor ground motion data is suggested.
本文提出了一个在缺乏强震观测资料的地区估算地震动参数的新方法。
The input for the ground motion analysis, such as boundary conditions, seismic records and soil parameters are discussed.
讨论了具有季节冻土层的场地上地震动反应分析的输入问题，包括边界条件、地震动时程和土层参数。
Make sure that you design for some ground motion that has the small chance of happening. We want to be pretty conservative.
卢科表示，“请在设计时确保考虑到一些极小几率发生的地表运动，我们应该相当保守。”
The seismic influence field reflects the space distribution of seismic intensity or space-related seismic ground motion field.
地震影响场反映了地震动强度的空间分布或与空间相关的地震动场。
Therefore, study on the influence of intensity envelope on the synthetic ground motion is apparently necessary and significant.
因此，强度包线对人造地震动影响的研究很有必要性和重要性。
A random synthesis procedure based on finite fault model is adopted for near field strong ground motion simulation, in this paper.
为了模拟近场强地震动，采用了基于有限断层模型的一种随机合成方法。
The seismic ground motion is assumed to be double filtered white noise, and pseudo excitation approach is employed to calculate the random response.
采用双过滤白噪声功率谱模型描述地震动，并用林家浩虚拟激励法进行随机响应分析。
An approach using the suspended mass pendulum to reduce the structural response to earthquake ground motion was discussed based on the ANSYS software.
基于ANSYS有限元软件讨论了高层建筑结构利用悬挂质量摆减震的原理及减震性能。
The results of this study also show that estimation of seismic stress drop from the peak parameters of ground motion will become a new practical method.
研究结果还表明用地面运动峰值参数估算地震应力降是一种新的实用性较强的方法。
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。
Though a single ground motion record can provide data correlating to these factors, it can't supply sufficient data for the local ground motion variations.
单个的地面运动记录虽然也能提供与这些因素有关的资料，但它不能给出地面运动局部变化的充分资料。
The ground motion time function is a kind of time serial signals, which is a highly varying and nonstationary randow procedure and fit for wavelet analysis.
地震动是由于地震引起的地面运动，其时间历程函数表现为具有突变特征的非平稳随机过程，因此更适于利用小波变换进行频谱分析。
The authors put forward that it is maybe a better way to substitute the earthquake intensity by the parameters of earthquake ground motion in seismic design.
提出在抗震设计中运用地震动参数代替地震烈度来进行计算能更好地反映工程实际情况。
The problem of scattering of SH-waves by shallow fill multiple circular cavities and the ground motion is investigated for arbitrary incident Angle in this paper.
研究了以任意方向入射的平面SH波在浅埋多个圆孔处的散射与地震动问题。
This modification incorporates explicitly the duration of strong earthquake ground motion into the time dependent variation of the root-mean-square peak amplitude.
这个修正明显地将强震运动的持续时间包含在均方根振幅依赖于时间的变异中。
The seismic ground motion attenuation relationship is an important content in seismic zonation and seismic safety evaluation of engineering sites for key projects.
地震动衰减关系是地震区划和重大工程场地地震安全性评价的重要内容。
A new method of determining ground motion parameters according to the destruction state of structure after earthquake, which using the inverse technology, is raised.
提出了一种根据地震后的结构所呈现的破坏状态，运用结构破坏反演技术来确定地面运动参数的新方法。
A new method of determining ground motion parameters according to the destruction state of structure after earthquake, which using the inverse technology, is raised.
提出了一种根据地震后的结构所呈现的破坏状态，运用结构破坏反演技术来确定地面运动参数的新方法。
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