QUESTION: (WINTER2014/2015) How is the shear resistance for gross section of gusset plates determined – should I use Clause 13.4.3 of S16-09 on webs of flexural members not having two flanges or Clause 13.11 on block shear? They give very different results

ANSWER: Neither. Clause 21.12, “Connected elements under combined tension and shear stresses”, a new clause introduced in CSA S16-14, covers this.