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年超越概率
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  years transcendental probability
     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。
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  “年超越概率”译为未确定词的双语例句
     Based on the calculations of bedrock effective peak acceleration(EPA) zoning map in Panxi area,the ratios of EPA with exceedance probabilities of 63%,5%,3%,2% and 1% in 50 years to that of 10% in 50 years are 0.302, 1.30, 1.55, 1.76 and 2.14, respectively.
     基于攀西地区基岩有效峰值加速度 (EPA)区划图 ,本文统计得出 5 0年超越概率6 3%、5 %、3%、2 %、1%下EPA与 5 0年超越概率 10 %下EPA的比值分别为 0 30 2、1 30、1 5 5、1 76、2 14。
短句来源
     In case the earthquake intensity of a city with a 10% exceeding probability lies between 6.5°~6.8°,7.5°~7.8° or 8.5°~8.8°,the optimal fortification intensity and earthquake parameters of such a city can be determined by the engineering policy-making analysis of the results of seismic hazard and condition of the city combining with the aseismic fortification delimitation of the city.
     但在50年超越概率10%的地震烈度为6.5°~6.8°、7.5°~7.8°、8.5°~8.8°范围内时,可根据该城市的地震危险性分析结果以及城市的规模等,结合城市的抗震设防区划进行工程决策分析,确定这类城市最优的抗震设防烈度或地震动参数.
短句来源
     Taking the Quanzhou City,Fujian Province,as an example,three scenario earthquakes are acquired,corresponding to the exceedence probability of 63%,10% and 2% in 50a.
     以福建省泉州市为例,获得50年超越概率63%、10%和2%等3个概率水平下的设定地震。
短句来源
     In order to meet the needs of anti-seismic design,the time history curve s of bedrock accelerate (exceedance probability is 5% in 50 years,and 2% in 100 years) were compounded.
     为满足水库抗震设计的需要 ,合成了 50年超越概率 5%和 10 0年超越概率 2 %的基岩加速度时程曲线。
短句来源
     When the site is the dam of Miyuan reservoir and the annual exceedence probability is less than 1.00E-2, the most dominant PSS is Huairou PSS located by the site for period (0.1s), but the most dominant PSS is Xiadian PSS for period (1.0s).
     但对于密云水库大坝邻近地区,在年超越概率小于1-00E- 2 条件下,短周期( T= 0-1s) 时对场地贡献量最大的潜在震源区是怀柔潜在震源区,而长周期( T= 1-0s) 时对场地贡献量最大的潜在震源区是夏垫潜在震源区。
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  相似匹配句对
     The result shows that the ground shock with 5% exceedance probabi lity in 50 years will be a distant event,and that with 2% in 100 years will be a near one.
     10 0超越概率 2 %的地震动为近震影响。
短句来源
     3. Three man-made earthquake waves are composed with the exceedance probability of 10% and 3%.
     3.根据相关资料合成了100超越概率为10%和3%的各三条人工地震波。
短句来源
     The seismic intensity over the next 50 years with a probability of exceedance of 10% in the area,i. e.
     建议取50超越概率10%的地震烈度,即地震烈度Ⅶ度作为抗震设防标准。
短句来源
     A Flowering Year
     花
短句来源
     Probabilistic Forecasting for Annual Peak Load of Power Systems
     电力系统最大负荷概率预测
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  annual exceeding probability
The relative interaction is not great than 10% with annual exceeding probability 2 × 10-3.
      
Ideally, the impact scenarios and the associated annual exceeding probability can be defined based on statistics from past accidents.
      


In this paper a discrete probabilistic model is proposed,which considers first the non-stationarity of seismicity in time and non-homogeneity in space.It is assumed in the model that the probabilistic density function of seismicity parameters in the same seismic statistical space are similarly and continuously distributed in the semi-infinite domain of definition.After their discretion,it is possible to obtain the expression and analytical approximation for the annual probability of exceedance.The spatial difference...

In this paper a discrete probabilistic model is proposed,which considers first the non-stationarity of seismicity in time and non-homogeneity in space.It is assumed in the model that the probabilistic density function of seismicity parameters in the same seismic statistical space are similarly and continuously distributed in the semi-infinite domain of definition.After their discretion,it is possible to obtain the expression and analytical approximation for the annual probability of exceedance.The spatial difference of seismicity for each source zone in a statistical space can be attributed to the weighted reduction (the weights in vector or matrix form) of the annual cumulative frequence.In this paper,McGuire's analytical formulation is extended,which is just suitable for the former,so that a more general analytical result considering the above two cases can be obtained and the calculation precision and efficiency can be improved accordingly.

本文提出了一个首先考虑地震时空非均匀性的离散概率模型。在该模型中,假定未来一定时间内同一统计空间的同类地震活动参数,其概率密度具有相似而且连续的半无限分布形式;离散化之后,得到年超越概率的综合表达式及其相应的解析近似。地震统计空间,内属各潜在震源区地震活动性的空间差异,可以归结为地震年累积频度按权重向量或权重矩阵的折减。在对震级进行积分时,本文将仅适用于前者的McGuirc解析结果作了推广,得到同时可以考虑两者的一般解析表达式,从而提高了计算精度与效率。

Seismic Intensity Zoning Map of China is compiled by adopting probabilistic method of the seismic hazard analysis. In compiling the map, the characteristics of inhomogeneity of earthquake distribution both in space and time in China are considered sufficiently, and some necessary modifications in the model of seismic hazard analysis are carried out. Based on the analysis of the seismic activity and seis-mo-tectonic environment, 26 seismic provinces are divided firstly as the statistic elements of the seis-micity...

Seismic Intensity Zoning Map of China is compiled by adopting probabilistic method of the seismic hazard analysis. In compiling the map, the characteristics of inhomogeneity of earthquake distribution both in space and time in China are considered sufficiently, and some necessary modifications in the model of seismic hazard analysis are carried out. Based on the analysis of the seismic activity and seis-mo-tectonic environment, 26 seismic provinces are divided firstly as the statistic elements of the seis-micity analysis, then the seismic potential source areas are divided in the seismic provinces. 733 potential source areas with various upper magnitudes have been divided in the country. According to the reliable time domain of earthquake data with various magnitude intervals, the b values in magnitude-frequency relationship are calculated in the seismic provinces. According to the analysis of the inhomogeneity of seismicity distribution both in space and time, the earthquake annual average occurrence rates in future and seismic spatial distribution functions are obtained. Based on the ellipse intensity attenuation models of different regions,the earthquake intensity values with various probabilities of ex-ceedance are calculated for about 30,000 controlling points for the whole country. On the basis of those studies, the seismic intensity zoning map (scale with 1 : 4000,000) is compiled with 10 percent of probability of exceedance during a period of 50 years.This zoning map can be applied to earthquake resistant design of small and medium civil engineering buildings, programs of national land use, the countermeasure for earthquake disaster mitigation and protection.

中国地震烈度区划图(1990)采用地震危险性概率分析方法编制,编制中充分考虑了我国地震活动的时、空非均匀性特征,对地震危险性分析方法做了重要改进。在地震活动特点和构造活动特点对比分析的基础上,先划分出26个地震带作为地震活动分析的统计单元,再进一步在地震带内划分潜在震源区,据此将全国划分为733个不同震级上限的潜在震源区。按各震级段地震资料的可信时期,求得地震带的地震重复率系数(b值),并根据对地震活动的时间不均匀性及空间不均匀性分析求得未来时间段的年发生率及其空间分布函数。采用分区烈度椭圆衰减模型,求得全国共约三万个点不同超越概率的烈度值,最后以50年超越概率为10%的风险水平给出1∶400万的中国地震烈度区划图。本图可作为中小工程的抗震设计依据、国土利用规划的基础资料以及制定减轻地震灾害对策的依据。 本图反映了我国八十年代的地震科学水平,也使我国工程建设的抗震设防进入概率设计阶段。

The paper establishes nine potential seismic source regions in the south Shanghai with characteristics of seismology and geophysics. The seismic active parmeters are obtained after analysis and calculation for each potential seismic source region. The overprobability of seismic intensity per year and over-probability of seismic influence intensity in 10, 20, 50, 100, 200, 300 and 500 years are calculated in the south Shanghai with the Probability as well as the Hong's 'Fault-Fracture Model' to estimate the seismic...

The paper establishes nine potential seismic source regions in the south Shanghai with characteristics of seismology and geophysics. The seismic active parmeters are obtained after analysis and calculation for each potential seismic source region. The overprobability of seismic intensity per year and over-probability of seismic influence intensity in 10, 20, 50, 100, 200, 300 and 500 years are calculated in the south Shanghai with the Probability as well as the Hong's 'Fault-Fracture Model' to estimate the seismic danger.

本文通过对工作区内地震地质、地球物理场特征研究,确定了场区周围九个潜在震源区,分析计算得出各潜在震源区的地震活动性参数。用概率论的方法,以洪华生等人提出的《断层—破裂模型》计算得到上海市南部地区地震烈度年超越概率以及10、20、50、100、200、300、500年内场区的地震影响烈度超越概率,并对这一地区的地震危险性进行了估计。

 
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