QUESTION: (FALL2015) I recently came across some fully threaded A325 bolts in the connections of a building structure. Are these bolts permitted? Do they have the same resistances versus bolts with regular thread length? How are they identified after installation? Do they offer any benefit? ANSWER: A325 bolts threaded full length are permitted under Supplementary [...]

QUESTION: (SUMMER2014) I am involved with evaluation of an existing building structure for compliance with the current code. The structure is in a sound condition. It satisfies the building code and CSA S16-09 for the intended occupancy except that the column bases have 2 anchor rods instead of 4. In one area, a row of [...]

QUESTION: (2015) For a knife-edge beam shear connection with double-angle welded to the support (Figure 2), can the top edge of the angles also be welded in order to increase the weld capacity? ANSWER: Beam shear connections must exhibit sufficient end rotation to allow the attainment of bending capacity of the simply supported beam, etc. [...]

QUESTION: (2015) Clause 13.13.2.2 of S16-14 waives the base metal capacity requirement for fillet welds except where over-matched electrodes are used. This suggests that the rated strength of the over-matched electrode should be used to calculate the weld resistance but W59-13 requires that matching electrode strength to be used in this situation. What should I [...]