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$($i$)$ Calculate the design load on a beam, per metre length, for the strength limit state. The imposed action $($live load$)$ on the floor is $4$ kPa and the permanent action $($dead load$)$ is due to the weight of the floor and beam only. Take the unit weight of concrete $=24k\frac{N}{m^3}$

$(4)$

$($ii$)$ Using the design load determined in i$)$ calculate the following for the beam:

Reactions

maximum shear force

maximum bending moment

$($iii$)$ For the $360$ub$50\mathrm{.}7$ calculate the following:

The maximum bending stress

The maximum shear stress assuming the shear is carried by the web only

REVISION EXAMPLE $2$

Calculate the reactions

Calculate forces in members AB and AC with the method of joints.

Calculate the forces in members $BD,BE$ and CE with the method of onat: