Draw shear force and bending moment diagrams for the given simply supported beam.
10kN 5kN/m 1m 2m 2m
Expert Answer
Draw a free body diagram converting the UDL into a point load
As UDL is given 5kn and it is acting on the 2m length
Therefore, load will be 5 x 2 = 10 kN acting on center of 1m from point B.
Take moments @A, we know the condition
Anticlockwise moment = clockwise moments
We know moment = force x perpendicular distance
RB x 5 = (10 x 1) + (10 x 4)
RB x 5 = 50
RB = 50/5= 10 kN.
Summation of upward force = summation of downward force
RA + RB = 10+10
RA + 10 = 20
RA = 20 – 10
RA = 10 kN
Shear force calculations:
Shear force is the algebraic sum of unbalanced vertical forces to left or right of the section.
So, if we start calculating from left side then upward force will be positive and downward force will be negative and if we start calculating from the right side of t...
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