Structural engineer, Radhi Majmudar was part of a team that performed the seismic analysis of Harmony and Heritage, two conventional offshore steel jacket platforms with heights of 1200 feet and 1075 feet respectively. The analysis of these eight legged, pile founded structures in the Santa Barbara Channel was performed to understand the impact of the 1989 Loma Prieta Earthquake on the various power cables within the existing platforms and determining the impact of replacing the out-of-service cables from their J-tubes with replacement submarine power cables. The cables were analyzed using JCL, Nastran, and GPDP language on supercomputers using historic and statistically created time history data. The 1200 foot deep waters surrounding Platform Harmony are deeper than for any other offshore platform on the West Coast. The Harmony jacket weighs 44,100 short tons. The Heritage jacket weighs 35,500 short tons and is installed in 1075 feet of water. These platforms support drilling rigs, production equipment, and personnel quarters. Harmony and Heritage are part of the Santa Ynez Unit, located in US federal waters and produce oil and gas from the Hondo, Pescado and Sacate fields.
Status: Built
Location: Houston, TX, US
Firm Role: Structural Engineer