Press Release – Northern Colorado Double Tee Load Test

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PRESS RELEASE

Northern Colorado Double Tee Load Test

Denver, Colo. (April 18, 2014) ‐ A Colorado double tee load test event was hosted at Colorado Precast Concrete on April 17, 2014, by the Northern division of the Structural Engineers Association
of Colorado (SEAC), Colorado Prestressers Association (CPA), Precast/Prestressed Concrete Institute (PCI), National Precast Concrete Association (NPCA) and Grupo Cementos de Chihuahua (GCC).  A full size 10DT24+2 double tee was designed for a typical parking garage floor member and was loaded to service level, 85% of ultimate, ultimate, 110% of ultimate, and failure. Testing procedures closely followed Chapter 20 of ACI318.

The objective of the testing was to demonstrate the structural performance of a common double tee while showing deflection and rebound. The tee was loaded with highway barriers weighing
4,400 pounds each, nearly the weight of a 1980 four door Cadillac sedan. The 10‐foot wide, 60‐foot long double tee was cast at Stresscon’s precast plant in Colorado Springs, Colorado.

Weights corresponding to Service Level, 85%, and 110% of a factored 29,300 service load were applied to the tee. At a loading of 85% of ultimate, the double tee had approximately 1 in. of deflection and 1 in. of rebound after the weights were removed. “This clearly shows the resiliency in the product, as well as the factor of safety incorporated into each member”, said John Jacobsen, Vice President of Engineering for Stresscon. A total of 88,000 pounds, almost three times the double tee service load, was applied. The double tee had a total deflection of 44 in. and was deem to have failed when it bottomed out on the ground.

For more information and video of the load test, please visit https://vimeo.com/94566340.

About Stresscon Corporation

Stresscon Corporation designs, fabricates, and erects quality structural and architectural precast concrete structures for the construction communities of Colorado and the Rocky Mountain region.
Founded in 1967, and a member of the EnCon Companies since 1993, Stresscon is PCI certified and specializes in institutional and commercial applications. To learn more, visit www.Stresscon.com.

About The EnCon Companies

The EnCon Companies are specialty contractors providing precast/prestressed concrete systems and services to all facets of the construction marketplace. In addition to the corporate offices and
the design group, EnCon Companies maintains nine manufacturing facilities nationwide. Recognized as one of the leading precast companies in the United States, EnCon is pioneering the use of the latest technology for the design and fabrication of precast structures. For more information, visit www.EnConUnited.com.

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Press Release – Stresscon Project Wins ACI Award

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PRESS RELEASE

Stresscon Project Wins ACI Award

Denver, Colo. (April 7, 2014) ‐ The U.S. Department of Energy’s National Renewable Energy Laboratory’s (NREL) Energy Systems Integration Facility (ESIF) has earned an Award of Excellence for Precast Concrete. The project was submitted to the 46th ACI Awards Program to highlight use of Thermomass®panels to accommodate high thermal requirements. The ACI Awards Program is designed to recognize creative, innovative, aesthetic and imaginative uses of precast concrete.

Located in Golden, Colo., the facility is the nation’s first to help public and private sector researchers with clean energy technologies. Completed in 2013, the facility features sustainable design features and materials. The 182,500 square foot facility includes experimental laboratories, outdoor test beds, and a high‐performance data center designed to be one of the world’s most efficient data centers.

The new Energy Systems Integration Facility (ESIF) is dedicated to the research, development, and megawatt‐scale testing of critical transmission and distribution‐level components of future electrical supply and demand systems. ESIF is the first in the country with these capabilities. This 182,500 square foot project, comprised of 876 pieces of precast, houses 200 scientists and engineers working together to transform energy infrastructures in 14 sophisticated high‐bay laboratories, a high performance computing data center, and an ultra‐green workplace.

A collaborative design‐build team including Martin/Martin, Inc., JE Dunn Construction and SmithGroup JJR participated in creation of the 182,500 square foot facility. The team incorporated
sustainable design practices throughout the entire build project using recycled materials, skylights, operable windows enabling cooling and ventilation, and solar powered fans.

Stresscon provided the high performance thermally efficient precast wall panels for the project. The 14 inch Thermomass®panels consist of 3 inches of exterior gray concrete, 3 inches of polyiso
Thermomass® insulation, and 8 inches of structural concrete. With edge to edge insulation, the wall panels achieve an R‐value of 20.55. The R‐value achieved helps provide ESIF with a 40 percent greater performance efficiency than the ASHRAE 90.1 building standards baseline building performance rating.

NREL is the U.S. Department of Energy’s primary national laboratory for renewable energy and energy efficiency research and development. NREL is operated for DOE by The Alliance for Sustainable Energy, LLC.

About Stresscon Corporation

Stresscon Corporation designs, fabricates, and erects quality structural and architectural precast concrete structures for the construction communities of Colorado and the Rocky Mountain region.
Founded in 1967, and a member of the EnCon Companies since 1993, Stresscon is PCI certified and specializes in institutional and commercial applications. To learn more, visit www.Stresscon.com.

About The EnCon Companies

The EnCon Companies are specialty contractors providing precast/prestressed concrete systems and services to all facets of the construction marketplace. In addition to the corporate offices and
the design group, EnCon Companies maintains nine manufacturing facilities nationwide. Recognized as one of the leading precast companies in the United States, EnCon is pioneering the
use of the latest technology for the design and fabrication of precast structures. For more information, visit www.EnConUnited.com.

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