Technical Drawing - Exam Papers - Higher - 2004 - Building
Fig. 5 shows the outline plan and elevation of a hyperbolic paraboloid roof. The perimiter of the roof is a circle in plan. The roof was formed by extending the hyperbolic paraboloid surface ABCD.
(a) Draw the plan and elevation of the roof.
(b) Determine the true shape of the section S-S through the roof.
(c) Determine the traces of the plane director for the elements AB and DC, having its horizontal trace passing through B.
(d) Determine the true angle between the vertical trace and the horizontal trace on the plane director.
Scale 1: 200