Multi- Family

Quantum Consulting Engineers provided structural design for an 81-unit assisted-living facility in West Seattle. Common dining, a theatre/media center, shops, and activity rooms occupy the first floor and plaza level, with two levels of parking below, and five stories of residential living above. The facility also features a rooftop deck and gardens.

The residential portion of the building is sited to take advantage of the dramatic views and to encourage an active public courtyard. The building has two main entrances for the residents. One faces a spacious plaza to the east, and the other is located through the vehicle entrance in the form of a porte-cochere. Loading berths are provided off the alley.

The lower floors of the building are composed of structural concrete with post-tensioned slabs, while the upper residential levels are constructed of light-gauge steel joists and panelized steel stud-bearing walls, while utilizing plywood floor and interior wall sheathing, and “sure-board” panels on exterior walls.

The building was initially designed and permitted as residential mixed-used apartments with a wood-framed superstructure. The shift in use to an assisted-living facility during construction required the superstructure to be framed with light-gauge steel to meet more stringent state regulations. This resulted in significant changes to the superstructure, and concrete parking and plaza levels. The structural design was re-analyzed and resubmitted to the City for approval within a very short timeframe, with our structural team and the contractor working closely throughout the process to help maintain the tight schedule and effectively deal with the design changes.

Architect: Runberg Architects 

Quantum Consulting Engineers provided structural design for a 227-unit mixed-use residential complex, created to be a new and vibrant live/work neighborhood in downtown Scottsdale, Arizona. With neighborhood retail space and a one-level underground parking level, Safari Drive will feature swimming pools, water features, outdoor community areas and abundant landscaping. A variety of scale and materials are used throughout the 11-building complex.

Structurally, the buildings will be comprised of different combinations of masonry and light-gauge steel walls, light gauge joists floors, structural steel girders and braced frames, and exposed timber roof and loft framing. The below-grade parking structure will encompass most of the site, and will provide generous headroom and parking stalls.

Safari Drive received the 2009 Award of Merit from AIA Seattle – November of 2009

Architect: Miller Hull Partnership

Quantum Consulting Engineers provided structural and temporary shoring design for their mixed-use and multi-family residential building. Located at the northern edge of Seattle’s Eastlake neighborhood at the corner of East Allison Street and Eastlake Avenue, this project adds high quality, contemporary condominium units to the desirable Eastlake neighborhood.  The project contains 52 units, comprising approximately 85,000 SF, including below grade parking and street level retail spaces.  Along Eastlake, retail shops activate the streetscape. Parking is located behind the retail spaces and below grade.

Architect: Johnson-Architecture and Planning

The Lake Park Townhomes are comprised of seven luxury, three level units overlooking the southern end of Lake Washington. They feature high end materials and finishes, including steel stringer stairs, private entries, two car garages, floor to ceiling sliding doors, and lots of natural light. Structural challenges included close coordination during construction of mechanical and electrical trades, flush framing throughout, and many long cantilever roof and deck elements.

Architect: Lake Park Ventures LLC

Quantum Consulting Engineers provided structural design for four 4-story identical multi-family buildings each consisting of 3 stacked levels of residential units over one at-grade level of enclosed parking. The 144 apartment units are wood-framed and supported on top of concrete post-tensioned slabs above the parking level. Foundations consist of concrete mat slabs due to the soft compressible and liquefiable soils that exist at this site, which is located along the Columbia Rive

Architect: CDA + Pirscher Architects, Inc