07-Str-A2, December 2016: worked solutions

Paper format. National Examinations, December 2016 — 07-Str-A2 Elementary Structural Design, 3 hours, closed book (handbooks and textbooks permitted). Seven questions in three parts: Part A (A1–A3, steel), Part B (B1–B3, reinforced concrete), Part C (C1, timber). The candidate answers two from Part A, two from Part B and the one question in Part C — five solutions in all, of equal value. All seven are solved here, because the set is a study resource. Page 1 states that all loads shown are unfactored, so the load combination is applied by the candidate: the point and distributed loads drawn on the figures are treated as live (1.5) and self-weight as dead (1.25), per NBCC 2020 Table 4.1.3.2 case 2 (1.25D + 1.5L).

Reference texts.

CSA S16:19, Design of Steel Structures (Clauses 13.3, 13.8, 13.13) with the CISC Handbook of Steel Construction, 11th ed., Part 6 section tables.
CSA A23.3:19, Design of Concrete Structures (Clauses 10 and 11), with Brzev & Pao, Reinforced Concrete Design: A Practical Approach, 3rd ed.
CSA O86:19, Engineering Design in Wood, with the Canadian Wood Council Wood Design Manual, 2020.
Kassimali, Structural Analysis, 6th ed. (SI), Chapters 3, 5 and 12 for the determinate/indeterminate analysis feeding each design.

Check — figure page reconstruction. Page 3 of 3 of this paper carries all six figures as a single hand-drawn composite whose OCR text is unusable. One genuine inconsistency was found and is flagged in Question 5: Figure B2 carries two conflicting height dimensions (7 m against the column, 9 m at the right-hand margin) for the same distance between A and the beam.

07-Str-A2: December 2016