extrados

基本解釋

An arch with mutually supporting voussoirs that has a straight horizontal extrados and intrados.
有水平拱背和水平的內弧面的互相支撐的拱石的拱。
By data fitting of FEA, an empirical formula of the limit pressure for elbows with local thinned area on inner wall of extrados has been attained.
由有限元計算結果數(shù)據擬合出了外拱內壁局部減薄彎管塑性極限內壓的計算公式。
The results of FEA method for cold-bending elbow predicted that the point of maximum stress is transferred from intrados to extrados with the increase of the wall thinning.
并應用有限元方法分析了冷彎彎頭的應力狀況，得出其最大應力發(fā)生點隨著外拱處壁厚減薄量的增大而向外拱處轉移。
Then, based on the seismic response analysis of the extrados cable-stayed, influence of high-order vibration modes on dynamic behavior of the bridges is analyzed.
在分析矮塔斜拉橋地震反應的基礎上，通過引入振型貢獻率的概念，分析了高階振型對矮塔斜拉橋動力性能的影響；
the method of reducing load on extrados
拱背減載法