Q$1$

Marks

The structural system shown in Figure Q$1$ below shows a reinforced concrete slab that sits on PCL mortar, type M$,$ fully grouted, unreinforced hollow units. These wall panels have a nominal thickness of $10-$inches. The wall panels are $10ft$ tall.

The $6-$inch$-$thick reinforced concrete slab is loaded with a uniformly distributed superimposed dead and live load intensity of $45psf$ and $60psf$ respectively. The selfweight of the slab should NOT be ignored. The slab can be assumed to impose a vertical, factored reaction force that acts at a minimum eccentricity of $10\%$ of the wall's thickness.

Assess the adequacy of the unreinforced wall panels in flexure, at the most critically stressed section along the wall's height. State clearly any assumptions made.

$(25)$