span-depth ratio

Moreover, parameter analysis of rise-to-span ratio of truss arch bridge with oblique tension link and span ratio of slant legged rigid frame bridge are carried out in four kinds of span which are 20m, 30m, 40m and 50m.

分别对其中最常用的斜拉杆式桁架拱桥和斜腿刚架桥进行了跨径为20m、30m、40m和50m时的矢跨比和分跨比参数分析。

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The position of tensile region of the section at mid-supports goes down as the span-depth ratio reduces.

中间支座截面受拉区的位置随着跨高比的减小而下移；

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The analysis on ground motion response of stone arch bridge was done according to typical seismic waves in different site and specification-based artificial waves. The effects of different arch axis and rise-span ratio on seismic behavior of stone arch bridge were discussed.

针对不同场地的典型地震波和基于规范生成的人工波，对石拱桥的地震动反应进行了分析，讨论了不同拱轴线和矢跨比对石拱桥抗震性能的影响。

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Research on the Steel Ratio of Reinforced Concrete Brackets of Small Shear Span Ratio

小剪跨比钢筋砼牛腿配筋率研究

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The long-span, high-aspect ratio wing provides exceptional climb performance.

大跨度, 高展弦比机翼提供优异攀登性能.

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Influence of height and diameter ratio, downcomer and riser area ratio, and reactor bottom gap height to reactor performance is analyzed, in addition, span of reactor bottom gap height is optimized.

分析了反应器高径比、降流区与升流区面积比及反应器底隙高度对反应器性能的影响，确定了反应器底隙高度的取值范围。

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