Editing Limit state design (section)

==Criteria==
Limit state [[design]] requires the [[structure]] to satisfy two principal criteria: the [[ultimate limit]] state (ULS) and the [[serviceability limit]] state (SLS).<ref>[[#McCormac2008|McCormac 2008]], p. 50. ''"The term limit state is used to describe a condition at which a structure or part of a structure ceases to perform its intended function. There are two categories of limit states: strength and serviceability."''</ref>

Any design process involves a number of assumptions. First: the [[Structural load|load]]s to which a structure will be subjected 2: foreseeable or cognizable possible exceptional scenarios and the stresses these may impress, and 3) the individual and collective strengths pertaining to any constituent part or sum of parts as a group and as a whole.