For all the structures within this assignment, $E=200$GPa and $=1\mathrm{.}2\frac{{10}^{-5}}{}C$

For the truss beneath, knowing that each of the truss members has an area of $250m{m}^2,$ calculate the vertical deflection at joint I due to:

a$.$ The loads shown.

b$.$ An increase in temperature of $50C.$

c$.$ A fabrication error causing an increase in the lengths of members BC$,$ KJ and JC by $5$ mm ner memher

For the truss beneath, knowing that each of the truss members has an area of $500m{m}^2,$ calculate the horizontal deflection at joint D due to:

a$.$ The loads shown.

b$.$ An increase in temperature of $25C.$

c$.$ A fabrication error causing an increase in the lengths of members BC$,$ KJ and JC by $5$ mm per member.