对输入地震动的影响研究。
The influence of input seismic load has been studied, secondly.
隔震体系最优屈服系数与输入地震动水平相关；
The optimal yield coefficient of the system is correlative with earthquake level.
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；
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.
本文在输入地震动功率谱为c - P谱的假设下推导了计算组合系数的解析公式。
Analytic formulas for combination coefficients are deduced in this paper under the assumption that the input power spectrum is C-P spectrum.
时程计算分析是重要结构物抗震设计的一个主要方法，输入地震动是地震时程计算分析的首要问题。
The analysis of time history is an important structure of a main seismic design method, its primary problem is the input of seismic motion.
本文采用有效应力原理分析了液化土层对设计反应谱的影响，分析中考虑了砂层的厚度、埋深和输入地震动等因素。
This paper presents the effects of soil liquefaction on design response spectrum in terms of effective stress theory by considering the thickness and depth of sand layer, and the earthquake intensity.
结果表明：深厚软弱地基上双塔和单塔高层建筑的地震反应有很大差别，这种差别与场地条件和输入地震动特性有关。
The results show that there are great difference between the earthquake responses of double and single tower high-rise buildings, this related to the input ground motion and sites.
探讨了阻尼参数的设置、地震波的选取、地震动方向的输入等问题。
Representing amortization reference set-up, earthquake wave access and earthquake motion input as well.
从多维地震动输入下的结构三维振动方程出发，给出了结构多维随机振动的振型位移法和振型加速度法。
From the equation of three-dimensional vibration of structures, the methods of multi-dimensional random mode displacement and mode acceleration have been put forward.
多点地震动输入下反应谱组合系数可以采用数值积分计算，但效率低下。
One can calculate response spectrum combination coefficient under multipoint earthquake motion input by numerical integration, but it has a low efficiency.
本文的多点输入为顺河向和竖向的双向输入，附带研究了单点输入时双向地震动相关程度对反应的影响。
By way of parenthesis, in One-Point Input Method the relation is studied between the response and the correlative coefficient of horizontal and vertical earthquake wave.
通过大量人工波及天然地震记录输入结构的分析，我们得到了地震动持续时间与结构弹塑性耗能之间的关系。
By introducing a number of natural and artificial ground motion records into structural analysis, the relationship between earthquake duration and energy absorbed by structures was obtained.
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.
提出了二维随机地震动输入实用模型，详细论述了重力坝结构随机地震动力响应的分析方法。
A practical model for earthquake movement input is proposed and the method for random seismic analysis of gravity dam is discussed.
讨论了不规则桥梁地震反应分析中地震动输入主方向的问题。
The method of determining earthquake input principal direction are studied, which is used for seismic analysis of irregular bridges.
本文按照反应谱理论的思路建立了线性单自由度体系的地震动输入能量谱。
A parameter study is carried out with input energy spectra of linear SDOF system under earthquake ground excitation in this paper.
研究发现，阻尼比为5%时的地震动总输入能量谱和最大瞬时输入能量谱的等价速度谱可以分别用阻尼比为0.5%和10%下的拟速度谱来近似获得；
It is found that the input energy and momentary input energy spectra with a damping factor of 5% can be estimated from the pseudo-velocity spectra with damping factors of 0.5% and 10%.
通过分析不同高度的砖烟囱在不同地震动输入时的破坏特征，探讨了砖烟囱在多向地震力作用下的破坏机理和一般规律。
By analysing the failure behavior of chimneys with different heights under earthquake inputs, the mechanism of the failure of brick chimneys under earthquakes is studied.
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。
The input for the ground motion analysis, such as boundary conditions, seismic records and soil parameters are discussed.
其次，采用传统地震反应谱方法，分析地震动模型和地震动输入角度对输电塔地震反应的影响。
Secondly, the conventional seismic response spectrum method is employed to obtain the seismic response on transmission tower.
三是输入竖向地震动。
本文方法在求解土结构相互作用问题时与基础固定时的动力响应频域分析方法一致，只需要调整地震动输入，就可得到问题的解答。
The proposed method can solve the interaction problem in the same way as the conventional frequency domain analysis does for a fixed-base structure.
因此，为合理地进行这类结构的抗震设计，在结构抗震分析中考虑地震动的多点输入的影响是非常必要的。
Therefore, it is necessary to consider the influence of the multi-support excitation in the seismic response analysis for the reasonable seismic design of such long-span structures.
在满足相似律的条件下，通过输入不同地震波类型、频率、激振方向和振幅，系统地研究模型斜坡的地震动力响应特性。
Under the condition of similitude law, the seismic responses of model slopes are investigated with different input wave kinds, frequencies, excitation directions and amplitudes.
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.
讨论了斜拉桥的地震动力分析方法，包括三维斜拉桥线性地震分析的多点激励地震输入问题。
The dynamic time-history analysis methodology is discussed, including the multiple-support seismic input problem for the three-dimensional linear earthquake-response analysis of cable-stayed bridges.
结果表明，基础隔震模型隔震效果明显，隔震层滞回变形能有效吸收地震动输入能量，减小模型结构的塑性变形和累积损伤。
The results show that the rubber isolated bearing is very effective in reducing the seismic response and dissipating the input energy of the superstructure.
算例表明，地层对地震运动加速度有一定的放大作用，在地下结构抗震计算中应以实际基岩地震运动加速度作为地震动输入。
The example shows that the ground has some amplifying action to seismic acceleration and the real seismic acceleration of the sole rock …
算例表明，地层对地震运动加速度有一定的放大作用，在地下结构抗震计算中应以实际基岩地震运动加速度作为地震动输入。
The example shows that the ground has some amplifying action to seismic acceleration and the real seismic acceleration of the sole rock …
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