: This update provided supplementary information and refinements to the original 2014 procedures.
Focuses on the Ultimate Limit State (ULS) . The structure must maintain strength and stiffness during an event roughly equivalent to the old "Strength Level Earthquake" (SLE). api rp 2eq pdf updated
: This was the last major technical supplement issued. It is often sold as a consolidated PDF with the original 2014 text. Reconfirmation (2021) api rp 2eq pdf updated
Unlike the old approach that often targeted a fixed ratio, RP 2EQ allows for a range of cap C sub r api rp 2eq pdf updated
: API 2EQ replaces the older API 2A-WSD seismic maps with ISO 19901-2 site seismic zones and specific maps in Figure B.2 of the document.