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mm391
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Homework Statement
Find the equations for the bending moment along AB and BC?
Reactions at A = -15kN
Reactions at B = 60kN
Homework Equations
F in the Y direction = 0
Moments with clockwise being positive = 0
The Attempt at a Solution
Moments about cross-section from the left before the point load (clockwise is +ve)= 15x-10(x/2)-M=0
M=10x
Moments about cross section-section from the left past the point load
(clockwise is +ve) = 10x-15(x-1)-10((x-1)/2)-M=0 M=-10x-20
Moments about cross-section from RIGHT hand side = M+60(3-x)+10(3-x)((3-x)/2)=0
M= -5(x^2-18x+45)
As I have no answers I am not sure if these are correct or where to go from here?
Any help would be greatly appreciated.
Thanks
Matt
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