Determine the reactions on the beam shown
→+ΣFx
= 0
Ax - 270cos60° = 0
Ax = 135 KN
Ax = 135 KN
↻+ΣMA = 0
270sin60°
(3) - 270cos60° (0.3) + 6.8 - By(4.2) = 0
By = 159 KN
↻+ΣMB
= 0
Ay(4.2) - 270sin60° (1.2)
- 270cos60° (0.3) + 6.8 = 0
Ay = 74.8 KN
or
↑+ΣFy = 0
Ay - 270sin60° + 159 =
0
Ay = 74.8 KN
Ans.
Ax = 135 KN
By = 159 KN
Ay = 74.8 KN