343 Second Street
Palo Alto, CA
Our rocking, restoring braced frames lend greater sustainability to this replicable NZE building by minimizing post-earthquake repairs.
This two-story, 48,000 sf office building achieved LEED Platinum certification with deep-green strategies such as photovoltaic power, natural day lighting, rainwater collection, and an innovative chilled beam cooling system. Performance-based design of rocking and restoring braced frames will confer additional sustainability benefits by minimizing post-earthquake repairs. Inspired by the owner’s preference for exposed wood structure, the architectural program includes four office blocks framed with glue-laminated timber beams, columns, and trusses; these alternate with glazed “connector” spaces around a central courtyard. Tipping Mar collaborated with the architect to make the connectors as transparent as possible in order to emphasize the adjacent office blocks’ wood structure.
In designing the exposed wood roof trusses, we created perspective renderings of a wide variety of truss member configurations and connection details. These renderings inspired discussion with owner and architect, leading to further refinement of the design. The resulting trusses feature paired glue-laminated timber chords and diagonal members sandwiching steel gusset plates and connected with timber rivets.
In addition to the high LEED target, the Packard Foundation headquarters has been designed to be a replicable net-zero-energy building in order to remain consistent with the foundation’s values and to minimize the building’s impact on the environment and local community.
Executed as Tipping Mar
2014 AIA Committee on the Environment's Top Ten Green Projects
2012 Engineering News Record, California's Best Projects, Best Green Project