The analytic results indicate that after using base seismic isolated technology,the natural period of structure with seismic isolation foundation can be extended to avoid the principal period of the ground and the earthquake energy is efficiently consumed by the deformation of seismi.
分析结果表明:采用基础隔震技术后,钢桁架结构通过延长自身的自振周期避开了地震的卓越周期,同时依靠隔震支座的变形耗能,有效地减少了输入到结构中的地震能量,这就降低了上部结构的地震响应,使大部分构件处于弹性工作阶段,从而达到保护主体结构的目的。
Calculation of seismic energy response of single degree of freedom system;
单自由度体系地震能量反应的计算
Using the seismic data in China Continent, parameters which express the local scaling features of seismic energy in spatial distribution have been studied systematically, in order to find out the practical method for earthquake monitoring and prediction.
利用中国大陆丰富的地震记录,对表征地震能量空间分布局域标度特性的各参量〔1〕及其组合进行系统研究,提炼具有可操作性、能够用于日常地震监测预报的实用方法,特别着重于“异常”划分方式及划分标准的研究。
The study shows that Hall chart overestimates the elastic energy of rock,and reservoir pressure declines much slower when calculating with Hall chart.
研究表明,Hall图版高估了岩石的弹性能量,用其数值进行油藏数值模拟计算时,油藏压力的下降速度明显变慢。
The auther draws the unsteadying critical equation with the energy law of the elastic steadying theory and the analytic precision of the elastic energy theory in analyzing plate wrinkling critical process is tested and verified.
提出了方板起皱失稳临界过程的基本假设及分析模型 ,利用弹性稳定理论的能量法推导出失稳临界方程 ,验证了弹性能量法在分析板料起皱临界过程中的解析精度 ,对于板材成型生产中防止起皱具有指导意义 。
The main reason why the plyometric contraction represents a both economical and efficient characteristic is due to the process of producing, storing and using of the elastic energy and effect of reflex regulation from the central nerve system.
弹性能量的产生、储存以及再利用过程和中枢神经的反射性调节作用是肌肉“超等长收缩”具有既经济,效率又高特点的主要原因。
An energy analysis method for blast-induced seismic based on power spectrum
基于功率谱的爆破地震能量分析方法
Energy-based Seismic Design Method and Application in Seismic Evaluation of Tall Building Hybrid Structure;
地震能量反应分析方法及其在高层混合结构抗震评估中的应用
Analysis on the Seismic Energy Response for Seismically Isolated Continuous Beam Bridge with Lead Rubber Bearing
铅芯橡胶支座隔震连续梁桥的地震能量反应分析
Analysis Space-time Characteristics on Energy Field of Seismicity in Jiangsu and Its Neighboring Areas
江苏及邻区中小地震能量场的时空变化分析
The analysis showed that the hampers of ductle column possessed good aseismic performance.
分析表明,这些延性柱耗能器具有良好的消耗地震能量的能力。
For example, an earthquake of magnitude 7.0 releases 32 times as much energy as an earthquake measuring 6.0.
如7.0震级的地震释放的能量相当于6.0震级地震的32倍。
Seismic response prediction for a story-isolation structure based on energy balance method
基于能量平衡的层间隔震结构地震响应预测
Richter scale
里氏(地)震级(美国地震学家里克特以地震耗费的能量来划分地震的级别)
A seismograph records earthquakes.
地震仪能自动记录地震。
The moment magnitude scale measures the total energy released in an earthquake and it describes large earthquakes more accurately than does the Richter scale.
力矩量级可以测量地震释放的总能量,并且用它来描述大地震比用里氏震级要精确得多。
Performance-Based Seismic Design of Bridge Structure Excited by Near-fault Earthquake Using Energy Concept;
近场地震下桥梁结构基于性能抗震设计的能量方法
Jiang Haikun says the energy from the Wenchuan earthquake was as huge as the Tangshan earthquake in 1976, which killed 240,000 people.
姜海昆说汶川地震的能量和1976葬送240000性命的唐山大地震一样巨大.
When an earthquake occurs, the violent breaking of rock releases energy that travels through the earth in the form of vibrations called seismic waves.
当地震发生时,岩石剧烈的破裂以被称为地震波的震动方式,释放出贯穿地球的能量。
QUANTITATIVE RELATIONS BETWEEN FOCAL PARAMETERS AND MAGNITUDE OF EARTHQUAKES OCCURRED IN YUNNAN PROVINCE
云南地震震源参数与震级的定量关系
They stored unlimited amount of food when they heard there might be an earthquake.
他们听说有可能地震贮备了大量的食品。
The Research for Performance and Self-noise Measure of Force-balanced Seismometers;
反馈式地震计的性能设计与噪声测量研究
Research on Vibration Response of a Long-Span Stayed-Cable Bridge under Earthquake Excitation Based on Energy Method;
基于能量方法的大跨斜拉桥地震反应分析研究
Energy Based Seismic Response and Design Method of Building Structures;
建筑结构基于能量的地震反应分析及设计方法