设左端支座为A,右端支座为B。
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上图的解答:
ΣMA =0, FB.10m -4KN.m -(0.2KN/m).(10m)(5m) =0
FB = 1.4KN(向上)
ΣMB =0, -FAy.10m -4KN.m +(0.2KN/m).(10m)(5m) =0
FAy =0.6KN(向上)
ΣFx =0, FAx =0
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下图的解答:
ΣMA =0, FB.3m -40KN.(1.5m) +30KN.m =0
FB =10KN(向上)
ΣMB =0, -FAy.3m +40KN.(1.5m) +30KN.m =0
FAy =30KN(向上)
ΣFx =0, FAx =0