徑向肋 的英文怎麼說
中文拼音 [jìngxiànglèi]
徑向肋
英文
radial rib-
The cfst x - type arches improve the lateral stability by sloping the arc ribs, so it is ofen used in the designs of cfst arch bridge with small ratio of the width to the span. tongwamen bridge is a half - through cfst arch bridge, its span is 238m, and the width of its roadway is 10m, so the truss ribs in - plane is sloped into x - shapc to improve its lateral stability. as the cfst x - type arches with longest span all over the country presently, the design of tongwamen bridge can be used for reference of adopting cfst x - type arches in the design of arch bridges with small ratio of the width to the span
鋼管混凝土x型肋拱橋是一種利用拱肋側傾來提高其橫向整體穩定性的橋型，在寬跨比較小的鋼管混凝土拱橋設計中應用較多。浙江銅瓦門大橋是一座中承式鋼管混凝土無鉸拱橋，跨徑238m ，橋寬10m ，拱肋為平面桁架形式，所以採用了x型拱肋以提高其橫向穩定性。作為國內目前跨徑最大的鋼管混凝土提籃拱橋，該橋的建成對我國今後長大跨徑小寬跨比鋼管混凝土拱橋採用提籃拱具有借鑒意義。The experimental model is a rectangular section of 15. 2 187mm ~ 2, which is composed of two aluminum plates. the angles between the internal netted rib turbulators and the flow direction are 45 ? for the one plate and 60 ? for the other, or both 45 ? for two plates. in the experiment, the re numbers changes from 0. 4 10 ~ 4 1. 5 10 ~ 5, rib width - to - pitch are 0. 25, 0. 3 and 0. 5, rib width - to - height are 0. 25, 0. 3 and 0. 5, the rib height - to - hydraulic diameter ratio is 0. 246
主要研究了在通道進口截面積（即無肋處的截面積） a為15 . 2 187mm ~ 2 、肋高與通道當量直徑之比e / de等於0 . 246 ，實驗雷諾數范圍在0 . 4 10 ~ 4 1 . 5 10 ~ 5之間的情況下，雷諾數re 、肋向角a 、肋寬與肋高之比t / e和肋寬與肋間距之比t / p等參數對通道強化傳熱與流動阻力特性的影響。
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