gravity table 中文意思是什麼
gravity table
解釋
比重分選臺-
Calibrating the gravity model consists of evaluating the parameters of the impedance function ( or the values in the friction factor table ) so that the gravity model reproduces, as closely as possible, the base year productions and / or attractions and the base year trip length distribution
校準重力模型就是計算阻抗函數參數（或者摩阻系數表中的值） ，使其盡可能吻合基年產生和吸引，以及基年的出行距離分佈。 -
Abstract : at first, the shaking table test of a gravity pier model was done. the comparison between the test data and the theoretical analysis results of the model showed that they are identical to each other. the dynamic model of a whole bridge with gravity piers and lead - rubber bearings was set up. the positive role of lead - rubber bearings on lowering the seismic responses of railway bridge and the seismic character of gravity piers were analysed. some earthquake resistance measures of railway bridge with gravity piers were put forward
文摘:首先進行了重力式橋墩模型振動臺模擬地震試驗，試驗與理論分析結果基本一致;然後建立了採用鉛芯橡膠支座的重力式橋墩橋梁全橋體系動力分析模型，計算分析了鉛芯橡膠支座對橋梁的減、隔震作用及重力式橋墩的抗震性能，提出了重力式橋墩橋梁的抗震措施。 -
Under the influences of random variabilities, during both construction period and operation period, the temperature field within a gravity dam body could be regarded as a random one. in this paper, stochastic finite element methods are suggested to deal with the random temperature field. by use of the suggested methods, the influences of random environmental and random hydration heat of concrete and the initial temperature of concrete as well as the thermal parameters of both concrete and rock foundation are all taken into account. according to a scheduled time table of construction, random temperature fields of a typical concrete gravity dam within both the construction period and the operation period are calculated by emulation the layer constructing of the dam. some useful conclusions are obtained from the computational results
由於施工期和運行期各種隨機因素的影響，使重力壩溫度場成為隨機.本文綜合考慮了環境溫度（包括氣溫和庫水溫度） 、混凝土絕熱溫升、入倉溫度以及混凝土和基巖的熱學參數隨機性的影響，基於隨機有限元法，給出了重力壩隨機溫度場的計算方法，對一典型重力壩按給定的施工進度模擬分層澆築施工過程，對施工期及運行期前期的隨機溫度場進行了計算，並得出了一些有益的結論
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