QB3)
Figure QB3 shows a simply supported beam, length 7m and subject to one
concentrated load of magnitude 30kN and two distributed loads of 20kN and 60kN.
(a) Calculate the reaction forces $R_1$ and $R_2$ at the supports.
[20%]
(b) Draw the shear force diagram for the whole beam, indicating the
magnitude of all important or significant values and the value of any
locations where shear force crosses zero..
[40%]
(c) Sketch the bending moment diagram for the whole beam,
indicating the magnitude of all important or significant values
including any maximum or minimum values.
[40%]
30 kN
20 kN/m
60 kN/m
$R_1$
$R_2$
2 m
1 m
1 m
3 m
Figure QB3
