Structural News

AISI standards offered free at new website

Washington, D.C. – The American Iron and Steel Institute (AISI) announced that its S200-series (cold-formed steel framing), S300-series (profiled steel diaphragm), and S900-series (test) standards are now available for downloading free of charge at a new website location, www.aisistandards.org.

ACI Foundation’s Concrete Research Council announces new Research Network

Farmington Hills, Mich. — In its quest to align donors, researchers, and funders with concrete research projects, the ACI Foundation has united with several industry partners by formal Memoranda of Agreements to form the Concrete Research Network (CRN). The CRN is a forum for the concrete industry to engage and connect researchers, funding organizations affiliated with the concrete industry, and industry users with technical research needs, with the end goal of promoting research needs and projects that offer broad implementation across the concrete industry.

Iowa State engineers to simulate and model tornado winds and their effects on buildings

AMES, Iowa – The Iowa State University Tornado Simulator kicked up a thick and slowly spinning funnel cloud over a model of a small town, overwhelming the miniature streets, buildings and homes. Partha Sarkar turned from the laboratory vortex and announced, “That’s an EF3.” Most tornadoes (about 90 percent of them) are EF3 or less in intensity. And so Sarkar advocates that homes and buildings within tornado alley across the middle of the U.S. be designed to withstand EF3 tornadoes and their top wind speeds of 165 mph.

RIDOT to replace I-95 bridge within an 11-day period

Providence, R.I. — The Rhode Island Department of Transportation (RIDOT) is set to replace the Barton Corner Bridge, which carries I-95 over Route 2 on the Warwick/West Warwick town line, beginning later this month. The operation uses accelerated bridge construction techniques to complete the work in an 11-day period. The new bridges (north and southbound) are scheduled to be in place by Labor Day.

ASU selects Hunt-Sundt JV for Sun Devil Stadium renovation

Tempe, Ariz. — Arizona State University selected Hunt-Sundt, a joint venture of Hunt Construction Group and Sundt Construction, Inc., as the Construction Manager at Risk (CMAR) to renovate Arizona State University’s Sun Devil Stadium. The $162-million project includes complete reconstruction of the lower stadium bowl, new concessions, restrooms and amenities, along with new luxury suites on the east and west sides of the stadium.

Construction crews shift focus to the northbound span of I-495 Bridge

Wilmington, Del. — Now that the southbound span of the I-495 Bridge is open to traffic, construction crews have shifted their focus to the northbound span. In the past week they were able to finish underpinning the piers needing new support closest to the Christina River (pier 14) and Christiana Avenue (pier 11). These piers are now firmly encased in a new footer on top of underground support columns.

Caltrans: Bay Bridge is safe

Sacramento, Calif. — In continuing response to reports released Aug. 4, 2014, by the California Senate Transportation and Housing Committee, investigating design and construction of the east span of the San Francisco-Oakland Bay Bridge (http://stran.senate.ca.gov/informationalhearings), Caltrans issued the following statement: “Here’s what statewide elected officials, Bay Area transportation officials, world-class engineers, geotechnical and welding experts, and quality assurance and quality control expert panel members have been saying about the safety of the new Bay Bridge:”

Caltrans responds to State Senate Bay Bridge report

Sacramento, Calif. — Caltrans Director Malcolm Dougherty responded to a Senate report on Bay Bridge construction by pointing out many misleading or inaccurate sections of the report, but also agreeing with the report that no one — even the strongest critics discussed in the report — disputes the safety of the Bay Bridge.

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