橫截面高度 的英文怎麼說
中文拼音 [héngjiémiàngāodù]
橫截面高度
英文
querschnittshhe-
Tower truss structure is a kind of rise independence structure, landscape orientation level load is the determine load, moreover wind load is main load to tower truss structure in all of level loads
塔桅結構是一種高度相對于橫截面尺寸很大，水平風荷載起主要作用的自立式結構。The load transverse distribution coefficient of test is in coincidence with the calculating hypothesis. prestress is linear distribution along the section height. the deformation of the section is according with the plane hypothesis
通過對試驗結果與有限元計算結果的對比分析，得出結論如下： 1 、本文所測試的荷載橫向分佈系數符合計算假定；預應力沿截面高度分佈具有較好的線性關系，截面變形符合平面假設。The contents include : based on the previous research and the data of experimentations, the author researches and develops a kind of satisfactory semi - empirical formula of nonlinear temperature distribution, and calculates the temperature stress of rigid - framed arch bridge by the fem. the temperature effects of bridge structure by annual and sunlight temperature difference are discussed, it indicates that the temperature effect of annual temperature difference is small but the temperature effect of sunlight temperature difference is great and the temperature stress along beam depth resulted from sunlight temperature difference is nonlinear. with the comparison between the temperature effects of different position of bridge, the results show that where the section of bridge is small, the temperature stress of it is large
本文主要包括以下內容：從理論上研究並結合實測資料發展了一種比較理想的半經驗溫度場非線性分佈公式，並將有限元方法應用於剛架拱橋結構溫度應力的計算中，對橋梁結構進行整體溫度應力分析；討論了年溫差和日照溫差引起的橋梁結構的溫度效應，表明年溫差引起的溫度效應較小，而日照溫差引起的溫度應力較大且沿梁高呈非線性分佈；分析比較了橋梁結構各個部位的溫度效應的大小，可知截面越小溫度拉應力越大，受力越不利；並對箱梁結構由於構造不同引起的縱向與橫向的溫度效應大小進行了探討，發現在頂板下緣也會出現相當大的溫度拉應力，並且梗腋的存在反而增加了頂板底部的溫度拉應力；還對幾種相近的剛構式橋型的溫度效應進行了分析對比，總結了這些橋型針對溫度效應的優劣，並提出相應的針對性措施。With the favor of these techniques, the static pressure distribution along the length and the velocity profile at the mini - channel exit were obtained. with the data of more than 500 flow states based on 13 kinds of mini straight rectangular channels that their heights were 0. 5mm and 1. 0mm, the effects of characteristic scale, surface roughness and the aspect ratio of rectangular on the characteristics of flow resistance of mini straight channels were studied
採用在沿程測量氣流靜壓分佈、在出口測量速度分佈的方法，對高度0 . 5mm和1 . 0mm的13個微小直矩形通道的500多個狀態流場進行了測量，研究了特徵尺度、表面粗糙度、橫截面寬高比等因素對微小等直通道流動阻力特性的影響。The tower shafts, most of which are hollow and varying in cross section, and altitudinal construction bring trouble to the form work and the stress of strand wire. and the cracks on the crossbeams will be caused by the following - deformation of the bracing structure joints, elastic deformation ， uneven settlement and temperature changes. the additional stress of the base slab and the foundation is caused by the deviation of cable bent tower construction
但大跨度橋梁混凝土索塔施工設備進場及現場管理都比較困難；塔柱多為空心變截面，且為高空作業，給模板工程及預應力張拉帶來一定困難；支撐系統連接的間隙變形、彈性變形、不均勻沉降以及環境溫差可導致橫梁裂縫；索塔施工偏位會引起的承臺和基礎的附加應力，對加勁梁的架設影響大；懸吊結構未完體系（架設時）施工階段的風致振動往往影響到施工的安全和質量；實心塔柱部分體積較大，易產生溫度裂縫。Earth embankment and geogrid reinforced embankment with various slope, various spacing and length of the reinforcements, various heights were calculated by fem. each factor ' s influence on the tensile stress of the geogrids, the stress and displacement distribution in the cross sections of embankments and the response of foundations were analyzed
採用有限元理論與方法對不同高度、不同邊坡坡度、不同加筋密度、不同加筋長度的土工格柵加筋路堤及不加筋路堤進行了計算與分析，研究了各因素對格柵內拉力分佈、路堤橫截面上位移及應力分佈的影響以及地基的響應情況。分享友人