In the wake of natural disasters and school shooting incidents, education professionals across the country are looking for innovative ways to better protect children while they learn. A new building approach from Salt Lake City, Utah-based Leland A. Gray Architects is designed to contribute to that goal.
The firm is adapting the concrete thinshell structural approach for K-12 schools in Utah, according to a report by KSL.
The domed building, which the architect calls "virtually indestructible," uses an air-formed thin-shell concrete dome, along with a concrete stem wall. The system was created for assembly buildings such as schools, churches, and arenas, but some school disctricts are finding that it works well for K-12 school buildings, as well.
To build one of these structures, the roofing membrane is formed into a dome shape with a 31-ounce PVC material. A concrete ring on the stem wall is attached to an air form, and the membrane is inflated by air pressure to the size of the dome. Then, the underside of the membrane is sprayed with a urethane insulation to a depth of 3 inches over the entire surface of the membrane.
Steel reinforcing bars are then placed in an interlocking pattern across the dome's underside. Finally, according to Leland Gray's website: "The reinforcing steel is built up to 4 feet high around the base of the dome and sprayed with shot-crete. This process continues in 4-foot-wide bands from the base to the top of the dome. The concrete will be 8 to 10 inches thick at the base, tapering to 3 to 4 inches thick at the top."
Schools like this have already been built in Utah and in other places across the country, in part, because they are relatively inexpensive to build and they can save school districts money in utilities.
According to KSL, which did a story on dome schools in Locust Grove, Utah, "both the elementary and the high school in Locust Grove cost $94 a square foot to build. That's a deal, considering the price for school construction in the U.S. ranges from $150-$250 a square foot." In addition, the superintendent of the district told reporters that these buildings cut utility costs by 40%.
Read the full KSL story here.
Check out the video below to see what goes into a concrete thinshell dome, and what one looks like from the inside.
Related Stories
Greenbuild Report | Nov 30, 2015
10 megatrends shaping the future of green building
Increased competition among green building rating systems, the rise of net-zero buildings, and a sharper focus on existing structures are among the trends that will drive sustainability through 2020, according to author and green building expert Jerry Yudelson.
Contractors | Nov 24, 2015
FMI survey: Millennials in construction get a bad rap, tend to be loyal, hard-working
While the stigma exists that Millennials are entitled, disloyal, and lazy, it appears that this is not true, according to a new report from FMI.
Cultural Facilities | Nov 23, 2015
BIG plans for Pittsburgh: Bjarke Ingels’ Lower Hill District master plan evokes hilly topography
Paths will be carved to create a dialogue between Pittsburgh’s urbanscape and its hilly surroundings.
Architects | Nov 23, 2015
Dewberry acquires Houston’s Wilson Architectural Group
Now known as Dewberry | Wilson, the firm will have access to more MEP, technology design, site/civil, and land development capabilities.
Architects | Nov 19, 2015
Book helps prevent new architecture students from making common mistakes
Written by Iain Jackson, "The Architecture School Survival Guide" covers both broad designing ideas and specific architecture tips.
Architects | Nov 18, 2015
AIA: Demand for design services still up for the year
October's ABI score was 53.1, down slightly from the mark of 53.7 in September. This still reflects an increase in design services, as any score above 50 indicates an increase in billings.
Architects | Nov 16, 2015
Croatia's 'sea organ' lets the ocean make music
Visitors to the shores of the Adriatic Sea in Zadar, Croatia, can hear the sounds of the ocean in an entirely different way. There, when the waves hit the coast, they make music—literally.
Architects | Nov 16, 2015
Perkins Eastman, ForrestPerkins combine practices
The combined international firm will total almost 1,000 employees.
Architects | Nov 10, 2015
AIA releases nine new contract documents
Include six new forms for design-build projects.
Architects | Nov 9, 2015
Perkins+Will acquires London-based Portland Design Associates
The firms will work together to offer “future-proofing” insights to clients.
