桁架問題 - 土木
By Noah
at 2013-01-24T20:24
at 2013-01-24T20:24
Table of Contents
1. http://ppt.cc/7toV
想問一下這題剖面法的路徑也一樣
如果我是看ABC三角形的話,S 會等於0
BF
但書上是切DEF三角形導致S = - R ≠0
BF F
這樣不是互相矛盾了?
另外書上剖面那樣切AC BC桿件也被切到不用考慮嗎?
謝謝
--
想問一下這題剖面法的路徑也一樣
如果我是看ABC三角形的話,S 會等於0
BF
但書上是切DEF三角形導致S = - R ≠0
BF F
這樣不是互相矛盾了?
另外書上剖面那樣切AC BC桿件也被切到不用考慮嗎?
謝謝
--
Tags:
土木
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