... depth of vertically digging 垂直挖掘深度 depth-span ratio 高跨比 derrick hoist 井架式升降机 ...
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girder depth-span ratio 主梁高跨比
depth span ratio 高度与跨度之比
reasonable depth span ratio 合理高跨比
depth to span ratio 高与跨度比
span depth ratio 跨深比
span-depth ratio [科技] 跨高比 ; 跨深比
It is indicated that apart from stiffness factor of beam to column, the ratio of depth to span and slop of roof greatly affect the stability performance of the portal frame under roof uniform loading.
研究表明，在均布荷载作用下，除了梁柱线刚度比，刚架高跨比及屋顶坡度对刚架的稳定性能影响很大。
At the same time, the stability of big-span tunnel with influence factor such as section size, high-span ratio and depth is studied.
同时，论述了大跨度隧道的稳定性以及断面尺寸、扁平率和隧道埋深对稳定性的影响。
It is suggested that the span-depth ratio of wall-bearing transfer beam should be less than 8 in seismic design, 10 in static design for SRC structure.
建议一般型钢混凝土托墙转换梁的允许跨高比在抗震设防时不大于8，对非抗震设计工程，跨高比不大于10；
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