West
One Bunker Hill
SGH consulted on the waterproofing design, designed structural modifications associated with restoring existing terraces, and designed new canopies.
Palo Alto, CA
The Epiphany
Scope/Solutions
The original Casa Olga building was an eight-story, reinforced concrete flat slab structure with reinforced masonry shear walls. The building served as a convalescence home until new owners purchased the building in 2012 and decided to convert it into a boutique hotel. SGH completed a seismic risk assessment of the existing structure and developed a retrofit program for The Epiphany.
As a result of our seismic risk assessment, SGH identified conceptual upgrades that could reduce the seismic risk for the building.
SGH performed a linear dynamic analysis to demonstrate a Life Safety performance level for the Design Earthquake per the requirements of ASCE 41. We designed a seismic retrofit consisting of new concrete shear walls and shotcreting of select masonry walls. As part of our retrofit plan, we also designed deep grade beams to strengthen the existing post-tensioned mat foundation.
SGH also designed structures for miscellaneous architectural elements, such as a reinforced concrete spiral staircase in the main lobby of the hotel and a cantilevered roof overhang.
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Project Summary
2013
Completion Date
15M
Construction Value
Solutions
Repair & Rehabilitation
Services
Structures
Markets
Commercial
Client(s)
Joie de Vivre Hospitality
Specialized Capabilities
Seismic Engineering | Repair & Strengthening
Key team members
Additional Projects
West
Annenberg Community Beach House
The new beach house features elements of the historic estate, such as the Marion Davies Guest House and a historic pool, with new amenities, including a splash pad, children’s play area, cafe, and gallery.