橋活荷載 的英文怎麼說
中文拼音 [qiáohuóhézǎi]
橋活荷載
英文
live load on bridge-
2. the random nature of load construction is analyzed. according to analyze various factors on change of reliability index, casting girder 、 construction live load 、 concrete intensity 、 wind load 、 construction distribution load deviation and basket falling, which influence on construction reliability of rigid frame bridge with high - pier and large - span, are obtained
2 .研究了各施工荷載的隨機性，通過分析各種影響因素對可靠指標的變化程度，得到已澆梁段、施工分佈活載、混凝土強度、風載和施工荷載偏差以及掛籃跌落等對高墩大跨剛構橋施工期可靠度的影響。Cbsa ( curved box girder structural analysis ) is programmed by this method in the environment of visual basic 6. 0 and it has friendly interface and visual forms for data input. it can analyze the loads including deadweight, prestressing force and temperature in curved box girder, output influence lines and load dynamically to calculate deformation and internal force
該程序採用visualbasic6 . 0編寫，具有友好的界面，可視化的數據輸入窗口，可以對彎箱梁橋的自重、預應力及溫度荷載等進行分析，並可輸出影響線，對彎梁進行動態加載，求解活載內力及變形。According to construction features of three - span prestressed concrete and continuous rigid frame box with v pier bridge, the paper demonstrates the shell finite element theories, c onstruct the spatial model, and researches its spatial stress and variable regularity under different loads including uniform load, concentrated load and prestressing force wire. morever, the paper studies vibratory modal of three - span prestressed concrete and continuous rigid frame box with v pier bridge, and sets about experimental investigation of the corresponding practical bridge
本文根據典型的三跨預應力混凝土墩連續剛構橋的特點，提出採用板殼有限元法計算理論，建立其空間分析模型，研究該橋在不同荷載（均布恆載、集中活載、預應力束）支承條件下的空間受力特性和變化規律：探討了典型三跨預應力混凝土墩連續剛構橋的空間靜動力特性及相應的振動模態；探索一般的平面理論預測值與實際空間效應的差異，並進行相應的試驗研究。The result indicate that the influences of geometrical nonlinearity is different to the structure critical load under different load cases. under the live uniform load, the structure critical load decreases 10 % after considering the geometric nonlinearity ; and under the live uniform load or concentrated load act on half bridge, the structure critical load decreases 35. 38 % or 74. 08 % after considering the geometric nonlinearity
計算結果表明，在不同的加載工況下，幾何非線性對結構的臨界荷載影響程度不同，幾何非線性對全橋均布活荷載作用下的臨界荷載影響較小，考慮幾何非線性后，臨界荷載僅下降了10 % ，而在半橋均布活荷載和集中荷載作用下，幾何非線性對其臨界荷載影響很大，考慮后其臨界荷載分別下降了35 . 38 %和74 . 08 % 。The initial strain must be the optimum value obtained by multiple - trial method. 5. in the static analysis of the bridge model under live load, assuming a shifting concentrated load on the girder, analyzing the relation map of each section deflection and the location of the concentrated load, finishing the load - on of the worst - case live load, then the moment and deflection envelope diagrams of the girder were obtained
成橋模型建立后，在後續活載作用下的靜力分析必須首先在主樑上作用移動集中荷載，分析主梁各斷面的活載撓度與集中荷載作用位置關系曲線圖，完成最不利活載的加載，從而最後得到懸索橋主梁的彎矩包絡圖及撓度包絡圖。分享友人