Earthquake Response of Offshore Platforms

by Robert G. Bea, (M.ASCE), Chf. Engr.; Ocean Engrg. Group, Woodward-Clyde Consultants, Houston, Tex.,
M. Radwan Akky, (M.ASCE), Sr. Project Engr.; Ocean Engrg. Group, Woodward-Clyde Consultants, San Francisco, Calif.,
Jean M.E. Audibert, (A.M.ASCE), Project Engr.; Ocean Engrg. Group, Woodward-Clyde Consultants, Houston, Tex.,


Serial Information: Journal of the Structural Division, 1979, Vol. 105, Issue 2, Pg. 377-400


Document Type: Journal Paper

Abstract: The response and performance of conventional offshore platforms subjected to intense earthquake ground motions is a topic of vital concern to the offshore energy industry. The platforms discussed are steel, tubular-membered, truss-framed structures supported by tubular piles and conductors. Elastic and inelastic response, and platform system element characteristics are considered. An offshore platform system, if properly designed and carefully proportioned according to API RP 2A guidelines, can develop earthquake resistance which equals or exceeds that of comparable conventional onshore building structures.

Subject Headings: Offshore platforms | Earthquakes | Ground motion | Steel piles | Steel structures | Building design | Load and resistance factor design

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