Technical Drawing - Exam Papers - Ordinary - 1999 - Building

Question 4

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Fig. 4 shows the outline plan of a hyperbolic paraboloid structure ABCD. The corners A and B are at ground level, corner C is 1.5 m above ground level and corner D is 5.75 m above ground level.

(a) Draw the plan of the structure and project an elevation and end elevation.
(b) Determine the true shape of the sections R-R and S-S through the structure.

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