enots

b$)$ Design a suitable solid timber beam in strenglh class SC $6$ to carry a UDLL

of $2\mathrm{.}9k\frac{N}{m}$ over a simply supported spain of $4\mathrm{.}5$ m $.$

Check the design for shear and deflection requirements.

Assume $-$ Long term duration of loading and wet exposuric conditions

Available timber sizes are $50200,50300$ and $100310$

all in millimeters

deflection limit $=0\mathrm{.}003L$