San Francisco, CA
499 Illinois Street
Scope/Solutions
The 499 Illinois Street project in Mission Bay is a 500,000 sq ft biotechnology center in two buildings with laboratory, office, retail, and parking. SGH provided structural and building enclosure engineering services for the project that consists of two five-story buildings over two levels of parking with flanking retail and office spaces at grade level.
Highlights of SGH’s work for this project include the following:
- Developed an innovative foundation system incorporating steel H-piles set in an auger-cast secant wall that integrates grouts of two different strength and functions as a shoring wall, a permanent foundation wall, a below-grade groundwater cutoff wall, and a waterproofing barrier
- Incorporated a seismic force resisting system with buckling-restrained braces and composite concrete-encased steel columns designed using nonlinear response-history analysis
- Designed floors to limit walking-induced vibration to 2,000 micro-inches per second
- Designed a mat foundation that was placed in a continuous fourteen hour effort that involved an 11,000 cu yd, monolithic placement of concrete to minimize potential for water intrusion and reduce construction cost
- Designed and observed waterproofing installation below-grade, raised plaza, balconies and roofs
Provided performance criteria and third-party commissioning for design-build curtain walls
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Project Summary
2008
Completion Date
500K
Project Size
Solutions
New Construction
Services
Building Enclosures | Structures
Markets
Commercial
Client(s)
DGA planning | architecture | interiors
Specialized Capabilities
Building Design | Temporary Construction | Geotechnical | Commissioning | Facades & Glazing | Roofing & Waterproofing
Key team members
Additional Projects
West
The Park at Park Place, Michelson Drive
Park Place on Michelson Drive includes six mixed-use buildings tailored to technology and creative companies that share a common plaza over existing service facilities and office space. SGH consulted on the waterproofing and building enclosure design for the project.
West
Wilshire Grand Center
At 1,100 ft in height, Wilshire Grand Center is one of the tallest buildings west of the Mississippi River. The tower houses below-grade parking, ground-level retail, eighteen floors of leasable office space, and 890 rooms for the InterContinental Hotel.