root spacing 中文意思是什麼
root spacing
解釋
根部間距-
The test results indicated that : crack similitude of reinforced concrete simple beams is not equal to model scale under the working load ; when the amount and surface shape of reinforcing bar are same, the similitude of crack width, crack amount and crack spacing of reinforced concrete simple beams of different scales are all nearly equal to the square root of model scale ; when the amount and surface shape of reinforcing bar are different, the similitude of crack amount and crack spacing are still nearly equal to, whereas the crack width is not only approximately proportional to, but the influence of the amount and surface shape of reinforcing bar on crack width should be considered also at the same time
試驗結果表明：在使用荷載下，鋼筋混凝土簡支梁的裂縫相似率並不等於幾何相似比；當鋼筋根數及形式相同時，不同模型比尺下的鋼筋混凝土簡支梁的裂縫寬度、裂縫條數及裂縫間距的相似率，均約等於模型幾何相似比的平方根；當鋼筋根數及形式不同時，裂縫條數及裂縫間距的相似率仍然約等於，而裂縫寬度的相似率近似與成正比，但應同時考慮鋼筋根數與鋼筋表面形狀對裂縫寬度相似率的影響。
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