arch core 中文意思是什麼
arch core
解釋
背斜核部-
The calculation modes of the coefficient of shrinkage and creep of the bulgy core concrete in steel tube are discussed. based on a few reasonable hypotheses and the stress - strain relation of concrete acquired by the " adjusting valid modulus depending on load time " method, a compact formula is reasoned out, which is applied to calculate the equivalent elastic modulus of the bulgy core concrete considering the affection of shrinkage and creep. so, the analysis of the affection on cfst arch bridge by shrinkage and creep can be progressed by pole - girder fem, further more, the analysis precision is quite high
本文還對核心膨脹混凝土特殊的收縮、徐變系數計算模式展開了探討，在合理的假設前提下，採用「齡期調整的有效模量法」得到的混凝土的本構關系，推導出鋼管內核心混凝土在考慮徐變影響后的等效彈性模量計算公式，並以此為基礎採用桿系有限元方法來對鋼管混凝土拱橋進行較高精度的收縮徐變分析。 -
According to the number and relative position of " core points " and " delta points " extracted from the fingerprint image, we classify the fingerprint into the following six classes : arch, tented arch, left loop, right loop, whorl, twin loop
通過提取出的指紋圖像中「核心點」和「三角點」的數目和相對位置，我們將指紋圖像分成了六種類型:拱型，尖拱型，左環型，右環型，渦型，雙環型。
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