樑應力問題 - 土木
By Donna
at 2008-11-28T16:04
at 2008-11-28T16:04
Table of Contents
http://i394.photobucket.com/albums/pp27/oldk0808/IMG_0001.jpg
上述網址是樑應力圖片
1.已知懸臂樑,受一均佈負荷如左圖(一),求距離左端a處的彎矩M值為何?
2.右圖中之外伸樑,試求距A點3.2m處之彎矩值為多少kN-m?
上面兩題都已經把剪力彎矩的自由體圖畫出來了!!
但小弟我想破頭還是想不出來為何自由體圖的剪力及彎矩方向會這樣畫呢?
這些問題對大家來說可能非常easy,但我是真的想把這類的問題搞懂!!
麻煩請板上各位朋友指點迷津~~~請大家用簡單明瞭的方法講解!(小弟我理解力較差><")
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By Vanessa
at 2008-12-01T19:40
at 2008-12-01T19:40
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