.CHAPTER 1 GENERAL1.1 Scope of ApplicationThis Standard applies to the structural design of steel buildings. The Standard, however, need not apply to structural designs based on special research studies.1.2 Structural Safety Verification TestsWhere a design in involves connection and other structural details not expressly prescribed in this Standard, the structural safe& of such details shall be proved by tests or by other appropriate means.1.3 Enlargement of SectionSections