Draw to a scale of 1:25, the detail of section Y – Y through the stairwell without showing the balustrade, from the ground floor slab to the first floor slab and indicate the following:
Few candidates attempted this question. They were able to show:
- the two sandcrete walls enclosing the staircase;
- how the concrete landing slabs are built into the supporting walls.
However, some of the candidates failed to:
- dimension their drawings;
- produce the detailed drawing to the specified scale (1:25);
- draw the stair flights with an even waist of 100mm as specified.
The detailed section Y – Y through the stairwell is as shown on the next page.
