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Structural Mechanics 4 Shear Force, Bending Moment and Deflection of Beams 20 kN 2.00m 3.00m RARA RBRB
Sum of moments about R A = 0 20 x (2.00) - R B x ( ) = 0 R B x (5.00) = 20 x (2.00) R B = 20 x (2.00) / (5.00) R B = 8.00 kN
Sum of moments about R B = 0 R A x ( ) - 20 x (3.00) = 0 R A x (5.00) = 20 x (3.00) R A = 20 x (3.00) / (5.00) R A = kN
CHECK VERTICAL FORCES UPWARD REACTION = R B + R A = = 20 kN DOWNWARD FORCE = 20 kN So likely that calculations are correct!
SHEAR FORCE DIAGRAM Space diagram SHEAR FORCE DIAGRAM 20 kN 12kN 8kN 0 12kN -8kN
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