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Quantum Consulting Engineers provided the structural design for a six-story, 36,000 square foot residential building for low income seniors. The client, Low Income Housing Institute, along with Runberg Architects, provided sustainable features to the building, including a large green roof, accessible to tenants. Large windows are provided to the 50 units to maximize natural light and ventilation. The structural system is composed of a slab-on-grade, post-tensioned concrete transfer slab, and 5 levels of wood framing.

Architect: Runberg Architects 

John Riley and Sandro Kodama provided structural design of a five-story residential building at the base of Queen Anne offering modern and distinctive in-city living. The building is situated on a challenging site and is constructed of five levels of wood framing over post-tensioned concrete slabs, features a domed rotunda, and has a standing-seam pitched roof. Thirty-four residences offer such features as vaulted ceilings, and decks with views of the Space Needle. A shared landscaped terrace provides residents with a view of the Olympics. Other building elements include retail space, live/work offices, and underground parking.

*John and Sandro performed this project while employed with another firm.

Architect: Runberg Architects 

This multiple award-winning project fills an important need to provide housing for homeless veterans, including those with families. The ground level includes a non-profit café and commercial space operated by the South County VA. The upper three floors of the four-story building include 59 living units. The structure is composed of a reinforced concrete main level, wood framing for the upper floor dwelling units. The transfer floor slab is post-tensioned concrete. Due to soft soils, the foundation system is comprised of augercast piles, grade beams, and structural concrete floor slab.

Architect: Baylis Architects 

Quantum Consulting Engineers provided structural design of a six-story, mixed-use residential complex housing 104 apartments and 6,000 square feet of street-level retail space with underground parking. The building is located in the Pike/Pine Corridor of the Capitol Hill neighborhood of Seattle. The design consists of three stories of post-tensioned concrete supported partially on concrete and steel piles, a landscaped interior courtyard above the garage, and five levels of wood framing for the residential living units above. A partial roof- top terrace provides tenant access to the city and mountain views. Quantum also provided structural design of the temporary shoring system located on three property lines which included cantilevered and tie-back soldier piles and underpinning for a temporary crane foundation.

Architect: Baylis Architects 

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