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Portland, OR

Owner:
Oregon Health & Science University

Architect:
Perkins + Will with Petersen Kolberg & Associates

Contractor:
Hoffman Andersen Joint Venture

Image Credits:
Eckert & Eckert Photography

Provided structural engineering services for the $167 million Clinical Expansion project on the Marquam Hill Campus of OHSU. The project consisted of an expansion and tenant improvement of University Hospital South, a new 450-stall parking structure, and utility/roadway improvements. The site slopes steeply from north to south, with approximately 70 ft. of elevation change within the building footprint. The building has an area of approximately 300,000-sf contained in 11 stories. Surgery, radiation treatment, ambulatory clinics, and nursing units are included in the building program. The building features an innovative hybrid floor system that resulted in an eight inch floor structure in thirty foot bays. This allowed for direct alignment of the new floors with the existing hospital with limited floor heights, and accommodated the complex mechanical systems in the ceiling spaces. The seismic resisting system features an innovative, state-of-the art moment frame with cruciform corner columns (the first such system approved by the City of Portland using FEMA 350 design techniques) which allowed for maximum flexibility in planning the space. While with another firm, Chris Thompson served as Principal-in-Charge, and the core team of engineers at catena were all on the project team.