This report focuses on the redesign of La Jolla Commons Phase II Office Tower in steel. Steel moment frames were added to the existing shear walls in order to eliminate the torsional irregularity associated with the original building structure. The architectural and servicability considerations were investigated. Also, a cost and schedule analysis was performed.
After investigations were complete, it was found that although a steel system is feasible, it may not be the most effective design for La Jolla Commons Phase II Office Tower. The concrete system allows for higher floor-to-ceiling heights, lower costs without a significant schedule increase, and does not require fire-resistive materials. Also, the concrete system will inherently control vibrations. Thus, a concrete structure is probably the most efficient choice for La Jolla Commons Phase II Office Tower.
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