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S Simplified Analysis procedure ELF Equivalent Lateral Force procedure Three additional items had to be designed for the lateral-force resisting system of this structure. First, the moment resisting connections for the joists and the joist girders had to be designed. There is a division of responsibility for these connections. The structural engineer is responsible for providing the column cap plate (for joists) and seated connection (for joist girders), welding requirements, the continuity...

Code Procedure for Seismic Design Category A

Structures determined to be in Seismic Design Category (SDC) A are required to comply only with the provisions of Section 1616.4 1 . There are five exceptions to this rule. First, detached Group R-3 dwellings in SDC A, B, and C are exempt from the general seismic provisions. Detached one- and two-family dwellings and multiple single-family dwellings (townhouses) not more than three stories high with separate means of egress and their accessory structures shall comply with the International...