401-96梁設計拉力筋量 - 土木
By Ophelia
at 2011-11-01T21:32
at 2011-11-01T21:32
Table of Contents
最近算實力考古題
解答中
矩形 單筋梁設計拉力鋼筋量有兩種解法
ㄧ、 確定為401-96規範解法
假設中性軸距離X
解 (Mu/φ= ) Mn = Cc * (d- β*X/2) (先假設φ=0.9)
Check εt > 0.004 (即 < 最大鋼筋量)
Check εt > 0.005 (φ=0.9)
Check As,min
我習慣是用這種解法
T型樑 非規則斷面也可用
雙筋梁則用εt > 0.005 , 再補不足的Mn
二 <===================== 疑問點就在這 96版仍保留這種方法嗎?
ρ=1/m(1-(1-2*m*Rn/fy)^0.5)
限定使用於矩形梁
以 力矩參數Rn 材料參數m求解鋼筋比
實力的解答在401-96仍用此方法解矩形梁 (大概是因為快捷 )
請問
401-96還有保留這種方法? @@?
請前輩們不吝指教 蟹謝
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