- #1
Kasthuri
- 17
- 0
Homework Statement
Calculate the Maximum Bending Moment of the bridge section using the values given.
Ra = 61837.91667 N
Rb = 78304.5833 N
(please refer to attached diagram)
Homework Equations
shear force is = 0 when x = 13.755998 m
(I worked this distance and the shear force equation out and found it to be correct)
Shear force equation is: v = (950/13)x2 + 3490.096154x - 61837.91667
The Attempt at a Solution
The Attempt at a Solution
Integrate shear force equation:
∫(950/13)x2 + 3490.096154x - 61837.91667
= (950/39)x3 + (3490.096154/2)x2 - 61837.91667x + C
when x = 0, c = 0
Maximum bending moment = (950/39)x3 + (3490.096154/2)x2 - 61837.91667x when x = 13.755998 m
∴ Maximum bending moment = -457024.4582 Nm
BUT, I know that the max bending moment is definitely not the answer I calculated.
Any help you can offer me will be greatly appreciated!
Thanks