The Ontario Building Code | Analysis
4.1.8.1. Analysis
(1) The deflections and specified loading due to earthquake motions shall be determined according to the requirements in this Subsection, except that the requirements in this Subsection need not be considered in design if S(0.2), as defined in Sentence 4.1.8.4.(7), is less than or equal to 0.12.
In Plain Language
Deflections and loads due to earthquake motion must be determined per this Subsection's detailed seismic design procedures, except that these requirements can be skipped where the site's seismic hazard parameter falls below a specified low threshold.
This is a plain-language summary of the 2012/2017 Ontario Building Code text above, for general understanding only and not a substitute for the Code. Always confirm current requirements against the 2024 edition (O.Reg. 163/24) or a qualified professional before construction.