上述RC問題應該做個總結了 - 土木
By Adele
at 2008-12-17T23:22
at 2008-12-17T23:22
Table of Contents
因為討論的內容我想已經夠多了 ,
討論總該做個End ,不然實在太佔版面了
我想再次強調 ,
贊成扣除的人
持的理由就是:
物理現像很明確
計算不會太複雜
可使結果較保守
不贊成扣除的人
是認為影響比例不大 ,
光安全係數就夠Cover這一點比鼻屎大的誤差
O.k 以上結論應該是可以得到版上各位版友大多數的認同
至少規範例題裏把扣掉視為精算,不扣視為估算,應該是吻合上述論點
如果結論是這樣 ,就不用把惠特尼方塊跟折減因子搞進來 !
單純的扣掉多算的"鼻屎大的面積"跟這些都無關 !
至於A大提出的論點 !
我個人認為啦 (若有冒犯,尚祈見諒)
是有他的研究意義 ,但沒有實用的價值
(如果有人又提出: 扣掉多算的"鼻屎大的面積" 也沒有實用的價值
那這問題就變成了無盡迴圈 , 真的會討論不完 !
那就只能看你選擇輸出的最後一步是扣或不扣了!
真的像某位版友講的,變成哲學問題了 )
規範的精神,本來就是在安全保守的前提下 ,愈方便愈好
RC本來就是經驗公式的一門學問
所以才要經常修改 !
各位大大有聽過結構學或材料力學在修改公式嗎
不過經由A大這樣的論點 ,其實也讓我重新思考這個問題
以前就是老師就這樣教 , 我也覺的很合理 ,沒有去想太多他到底忽略了什麼
原來合理的背後 ,還是隱藏了很多未解的問題 !
沒辦法 ,這就是經驗公式 !
但至少他守住了最後的防線 : 就是要偏保守
其他太鑽牛角尖的問題 ,就留給A大去苦惱吧 *_*
如果沒再有新的論點 ,就讓話題打住吧 ! 不然可能要轉哲學版再戰了 !
--
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