Structural, seismic, and blast engineering for office building, annex, and parking structure. Design-build. LEED Gold. 180,000 sf.
Weidlinger Associates provided structural, seismic, and blast engineering services for the new $39-million FBI field office complex in Portland, Oregon. The complex consists of an office building and annex of approximately 120,000 square feet and a 100-space 60,000-square-foot parking facility. The office building has a structural steel frame and a precast and glass curtain wall. Site-cast tilt-up concrete wall construction was used for the annex, which has an open-web steel joist roof. The parking facility has a precast prestressed long-span concrete structure. The office and parking structure are supported on deep foundation systems, while the annex and one-story portion of the office building are supported on spread footings. Weidlinger is provided design and analysis to prevent progressive collapse of the main office building as well as design and analysis to protect the main office building and annex structures, including their facades, against blast.
Weidlinger worked closely with all of the design team members, including the design-build contractor, Skanska, to ensure a coordinated, on-budget design that met the aggressive construction schedule and additional security requirements for General Services Administration (GSA) facilities. The complex falls under GSA jurisdiction and complies with the provisions of GSA's Interagency Security Committee (ISC) Design Criteria for all new tenant-occupied federal buildings and commercial office buildings.
Completion Date: 2012 Location: Portland, Oregon Owner or Client: Molasky Group of Companies Prime Consultant(s): Hammel, Green and Abrahamson