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transcendental probability
    According to calculation by fault fracture model, provided the transcendental probability is 0. 01 with consideration of design durability of major hydraulic structures being 100 years,design intensity of earthquake at Changzhou will be Ⅶ grade and maximum horrizontal acceleration a_(max)= 0. 12g.
    根据断层破裂模型计算,如取超越概率为0.01,大型水工建筑物设计基准期按100年考虑,则长洲的地震设计烈度为Ⅶ度,最大水平加速度α_(max)=0.12g。
    Through making use of tie probability calculation method of seismic hazard analyses, transcendental probability of the seismic effect intensity and ground acceleration for Sandoupin dam site in different periods were obeained.
    并对三峡工程三斗坪坝址进行了地震危险性分析,给出了三斗坪坝址不同期限内的地震影响烈度和峰值地面加速度的超越概率
    Based on study of geologic structure and seismic activities in Quanzhou city and nearby counties,some model parameters anplicable for seismic risk analysis in this area are established. By means of probabilistic methods,20 observing points are set up inQuanzhou city and 7 nearby counties for collecting data. The data,which include seismic intensity,peak values and scatter diagram of horizontal acceleration of average solum,are collected under the conditions of different fixed number of years and different transcendental probability.
    本文研究泉州市区(鲤城区)及附近区域的地质构造背景和地震活动性特征,建立了适合于本地区地震危险性分析的模型参数、用概率的方法给出20个场点在不同年限,不同超越概率下,场地的烈度值、最大水平加速度值及其分布图,并结合图表对地震危险性进行了分析和讨论。
    The intensity values of M≥4. 0 earthquakes occuring around Linfen were calculated in Linfen and the transcendental probability curve (seismic risk curve) was given in future 100 years using seismic data from 1022 to 1993. The result show that the extreme value method of calculation intensity can serve as supplement and test of comprehensive probability method of seismic risk analysis.
    利用1022─1993年的地震资料,计算了临汾(36.10°N,111.50°E)周围4级以上地震在临汾造成的烈度,绘制了未来100年临汾的烈度超越概率曲线(地震危险性曲线)。 结果表明,计算场地烈度的极值理论方法可作为地震危险性分析的综合概率法的补充和验证。
    Based on the design conditions of the main spans,the dynamic characteristics of the whole concrete continuous girder bridge are analyzed. The seismic analyses is done according to the current Code. Rseponse spectrums which describe 10% transcendental probability and 2% transcendental probability in 50 years,are used in the seismic analyses.
    结合太枣沟大桥主桥的设计情况,建立动力分析有限元模型,对钢筋混凝土连续刚构桥全桥动力特性进行分析,分别选用50年超越概率10%和50年超越概率2%两个水准的反应谱进行大桥的抗震分析。
    With reference to the design of the main bridge of the Bridge, the finite element model for dynamic analysis is established, and the dynamic behavior of the overall rigid-frame bridge is calculated. In the aseismatic analysis of the Bridge, two levels of the seismic response spectrums, that is, 10% of the 50 years transcendental probability (P1) and 2% of the 50 years transcendental probability (P2) are selected.
    结合徐水河大桥主桥的设计情况,建立了动力分析有限元模型,对钢筋混凝土连续刚构桥全桥动力特性进行了计算,分别选用了50年超越概率10%(P1)和50年超越概率2%(P2)两个水准的反应谱进行了大桥的抗震分析。
    <Abstrcat> the seismic environment and engineering condition around the site of Mobile Communication Center in Shandong Province are briefly introduced. When the transcendental probability in 50 years is 63%, 10% and 2% respectively, the mean seismic intensity of the site is determined with seismic hazard analysis. Based on 1 dimensional shear wave theory, the seismic response of the site is analyzed, and the design aseismic parameters are obtained.
    简要介绍了山东移动通信枢纽工程场地所处的地震环境、历史地震影响以及工程场地条件,利用地震危险性概率分析方法确定了50年超越概率为63%、10%和2%时工程场地平均土条件下的地震烈度、基岩地震动参数,并依据一维剪切波理论进行了场地地震反应分析,得到了具体的抗震设计参数。
    A case study was performed on the Kezier Dam site. Based on the principles of maximum contribution and structure consistency, an effective peak acceleration (EPA)-based scenario earthquake method was put forward by combination of the virtues of the probability and determinacy seismic hazard analysis methods. The scenario earthquake parameters of the Kezier Dam site, including the magnitude, epicentral distance and response spectrum, for a transcendental probability of 2% for 100 years were given.
    以新疆克孜尔坝址为研究对象,综合确定性和概率地震危险性分析方法的优点,依据最大贡献和构造一致原则,提出了基于有效峰值加速度(EPA)的设定地震方法,给出了新疆克孜尔坝址100a超越概率为2%的设定地震参数———震级、震中距和反应谱.
    In the analyses the artificially composed seismic accelerations with a 2% transcendental probability for 100 years is adopted with different joint forms of tube sections considered and different computing parameters adopted. The safety for the structure of submerged section in the conceptual design is evaluated according to the results of analyses. The data obtained were accepted by the design institute~(\).
    分析中采用了隧址处100年超越概率为2%的人工合成地震加速度,考虑了不同管段的联结方式和不同的计算参数,对初步设计中沉管段结构的安全性进行了论证,所提供的数据曾为设计单位所采纳[1]。
 

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