Paper format. National Examinations,
December 2014 — 07-Str-A1 Elementary Structural Analysis. Three
hours, CLOSED BOOK, an approved Sharp or Casio calculator permitted. Six
questions constitute a complete paper: answer ALL of Questions 1 to 5, and ONE
of Questions 6, 7 or 8. Marks are shown in the left margin
(6 + 18 + 18 + 18 + 20 + 20 = 100). All eight questions are solved below,
because the three alternatives test quite different methods
— moment distribution, statics of a three-hinged frame, and virtual work
— and the complete set is the more useful study resource.
Reference texts.
- R. C. Hibbeler, Structural Analysis, 10th ed. — Ch. 2
(determinacy and stability), Ch. 3–5 (trusses, internal loadings, frames),
Ch. 6 (influence lines), Ch. 8–9 (deflections and virtual work),
Ch. 11–12 (slope-deflection and moment distribution).
- A. Kassimali, Structural Analysis, 6th ed. — Ch. 3
(equilibrium and determinacy), Ch. 4 (plane trusses), Ch. 5 (beams and frames),
Ch. 7 (deflections by virtual work), Ch. 8–9 (influence lines),
Ch. 16–17 (slope-deflection and moment distribution).
- K. Leet, C.-M. Uang and A. Gilbert, Fundamentals of Structural
Analysis, 5th ed. — a parallel treatment of the same syllabus.
- C. H. Norris, J. B. Wilbur and S. Utku, Elementary Structural
Analysis, 4th ed. — the classical text this exam code is named after.
Check: support types were read from the printed drawings, not from the text. Every support symbol, internal hinge and member line quoted below was taken from the drawings. In this subject the drawings carry data that appears nowhere
in the printed text, and the classification in Question 1 in particular turns
entirely on telling a pin (plain triangle on hatching) from a roller (triangle
over rollers) and a rigid joint from a hinge (small open circle).
