common arch 中文意思是什麼
common arch
解釋
粗拱-
( 2 ) the common used arch axes are circular arcru parabola arch, catenary arch
（ 2 ）空腹式剛架拱橋的拱軸線一般可取圓弧線、拋物線或懸鏈線。 -
Circular arch is rational for big rise - span ratio, but each has his strong point for small rise - span ratio. ( 3 ) the common used rise - span ratios are 1 / 6 - 1 / 12. by the decrease of rise - span ratio, the internal forces are increasing linearly except of the moment of open spandrel beam
（ 3 ）空腹式剛架拱橋的矢跨比一般為1 6 1 12 ，隨著矢跨比的減小，除了空腹段加勁梁的彎矩值線性減小外，其餘截面的內力值均為線性增大。 -
3. this thesis analyses and contrasts the coefficient of creep of concrete filled steel tubes, develops the calculation formulas of equivalent elastic modulus, adopts common structure analyses procedure ansys to calculate the redistribution of section stress in the concrete filled steel tubes arch bridge
同時根據鋼管混凝土組合結構的受力特點，應用「齡期調整的有效彈性摸量法」推導出核心混凝土考慮徐變影響后的徐變等效彈性模量計算公式，從而利用通用有限元ansys進行鋼管混凝土拱橋的應力重分佈計算。 -
Bachu arch is a common forland uplift of southwest of tarim forland basin northeast of tarim forland basin. this arch previously is a low submerged paleohigh which rised integrality above water from late hercynian to terminal hercynian, was exposed to denudation mostly because of uplifting integrality in mesozoic, ulteriorly uplifted and strongly reformed in late himalayan. markit slope is a slope north dipping in early paleozoic, tilted in south - north orientation in hercynian
巴楚隆起作為塔西南前陸盆地和塔東北前陸盆地的共用前陸隆起，是一個早古生代潛伏於水下的低隆，海西晚期至末期呈整體性隆升，露出水面，中生代整體隆升，大面積遭受剝蝕；喜馬拉雅晚期進一步隆升和強烈被改造，才定型成現今的構造格局。
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