Question $3(30$ marks$)$

a$)$ Briefly explain the Hillerborg's Strip Method.

$(10$ marks$)$

b$)$ The rectangular slab of Figure $3\mathrm{.}0$ is simply supported by masonry walls along all four sides. The slab thickness is about $175$ mm $.$ It is to carry a service live load of $5\backslash (\backslash$mathrm$\{$kN$\}/\backslash$mathrm$\{$m$\}^\{2\}\backslash ).$ Specify a suitable load distribution. Using strip method, find the moments at all critical sections.

$(20$ marks$)$

Figure $3\mathrm{.}0$