opposite span 中文意思是什麼
opposite span
解釋
相反旋轉-
Considering the whole span of earthly time, the opposite effect, in which life actually modifies its surroundings, has been relatively slight
考慮到地球上生命存在的整個時間，相反作用，即生命對其周圍環境的實際改變作用，卻相對很小。 -
Self - erection system is applied to construction of most of modern large span concrete bridges. in the process of construction, cantilever beam is changing continuously because of the gravity of concrete, the stretching force, the load and temperature variation etc. in order to ensure that two cantilevers constructing opposite can normally close up and that the bridge linearity can accord with design, flexibility deformation has to be monitored
現代大跨度混凝土橋梁多採用自架設體系施工，在混凝土自重、張拉力、橋面荷載、溫度變化等的作用下，懸臂梁體處于不斷的變化之中，為保證對向施工的兩端懸臂能正常合攏和控製成橋線形符合設計要求，需要對施工過程中的撓度變形進行監測。
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