Building Structural
walls and flooring including tilt up, post tension, precast, masonry, site cast, ICF, foundations
Highlights
Resource Stewardship in Use: reduced energy consumption, exposed concrete finishes
Resource Stewardship in Supply Chain: carbon reduction strategies in mixture and design
Safety and Stability: advanced seismic design
Financial Stewardship: reduced long term operating cost
The San Francisco Public Utilities Commission (SFPUC) Building (illustrated in Fig. 1) provides an excellent case study for the integration of (Building Information Management) BIM to achieve a sustainable building. This building required carbon accounting for construction materials and construction activities, and is LEED Platinum certified. Figures 2 through 4 show various views of the core walls of the building that incorporate vertical post-tensioning.
Highlights
Resource Stewardship in Use: reduced sound transmission between units and exterior, energy efficiency
Financial Stewardship: construction time savings
Awards and certifications
LEED Platinum (LEED for Homes/Affordable Housing)
Precast/Prestressed Concrete Institute’s (PCI) Sustainable Design Award
Highlights
Resource Stewardship in Use: durable surface for high use infrastructure
Resource Stewardship in Supply Chain: reclaimed waste ingredients
Financial Stewardship: savings in construction cost and downtime
Although the floors are made with specialty components such as iron aggregates, impact from garbage trucks unloading and abrasion from heavy equipment moving trash can shorten the average transfer floor life to only 1 to 3 years. For the Solid Waste Authority, the downtime of any plant and the logistics of diverting continually accumulating trash are paramount. Floor rehabilitation typically averages 2 months of construction time before the floor goes back into operation.
Highlights
Resource Stewardship in Use: mix and structural design reduced total material use
Resource Stewardship in Supply Chain: reclaimed waste in mix
Financial Stewardship: long service life, more parking on same area due to longer spans
Aesthetics: longer spans allow more open feel and better visibility
The Midfield Terminal at the new Indianapolis International Airport opened in 2008, and includes a massive 7000-car parking garage. Each of the five parking levels is approximately 500,000 ft2 (46,500 m2). The two-way post-tensioned concrete design for the garage maximized the benefit from the chosen HPC mixture.
Highlights
Resource Stewardship in Use: mass for temperature buffering, light color concrete for daylighting
Resource Stewardship in Supply Chain: waste material cement replacement
Safety and Stability: seismic and security concerns for a federal facility
Aesthetics: light color concrete for daylighting
Awards and certifications
AIA San Francisco Design Award
GSA Design Honor Award for Architecture
GSA Design Award Citation in Sustainability
Highlights
Resource Stewardship in Use: thermal mass, structural support for passive solar and daylighting strategies, pervious paving in parking lot
Resource Stewardship in Supply Chain: fly ash substituted for portion of cement
Awards and certifications
LEED Platinum
2007 Architectural Merit Award, Arizona Chapter of American Concrete Institute
Highlights
Resource Stewardship in Use: thermal mass and radiant heating
Aesthetics: precast used to repeat brick and block façade style on campus
Awards and certifications
LEED Silver
Highlights
Resource Stewardship in Use: repair and restoration prevents waste, extends service life
Financial Stewardship: extended service life
Aesthetics: unique, historical building restored
In 2005, the Washington Airports Authority decided to rehabilitate and maintain the exterior façade of the architecturally unique and historic Terminal A at Ronald Reagan Washington National Airport (Fig. 1).
Highlights
Resource Stewardship in Use: thermal performance of large tilt up panels
Resource Stewardship in Supply Chain: local production, use of fly ash
Aesthetics: decorative concrete entry plaza
Awards and certifications
Seeking LEED Silver
NAIOP (Commercial Real Estate Development Association)
Outstanding Industrial Building, Hillsborough County, FL
Broker Deal of the Year—Industrial
Highlights
Resource Stewardship in Use: concrete slab to support green roof for heat island and stormwater management, pervious hardscapes
Resource Stewardship in Supply Chain: waste materials in concrete mix
Awards and certifications
LEED Platinum
Conserve Georgia Water Conservation Award
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