Bank vault-grade wall, roof equip data center for 360 mph winds


Sources: Ascent LLC, St. Louis; CP staff

A builder and operator of highly secure data centers is promoting its latest facility on the strength of mass, reinforced concrete: 15-in. walls and a 13.5-in. roof enclosing 42,600 sq. ft. of space. Dubbed DAL1 for its Dallas-Ft. Worth metroplex proximity, the new Plano, Texas, facility is built to withstand exposure to 360 mph winds, well above the National Weather Service’s 200-mph threshold for (Enhanced Fujita Scale) EF5 tornadoes.

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PennDOT the latest agency to give prestressed U-girders the green light

Sources: Modjeski and Masters, Mechanicsburg, Pa.; CP staff

Bridge designer and engineer Modjeski and Masters cites Pennsylvania Department of Transportation approval of standards immediately affording spliced, post-tensioned concrete U-girder options to state practitioners and structure owners. The new standards can be used for Design-Build projects, or as an Alternate Bridge Type at PennDOT District Executive discretion.

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