| News for and about concrete professionals |  |
| Industry News |  |
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- $407M rehab of NYC's Alexander Hamilton Bridge presents challenges
The Alexander Hamilton Bridge, a 1,485-foot-long steel-arch span that carries eight lanes of traffic over the Harlem River in New York City, is undergoing a complex rehab. This piece discusses how designers and builders met the challenges posed by the project and explains how various value-engineering solutions have allowed them to save costs. The project is slated for a December completion, and the renovated bridge is expected to last for 75 years. Engineering News-Record
(2/4)     
| Technology & Trends | |
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- Several tools, techniques improve jobsite safety
The use of different tools to improve jobsite safety has helped contractors reduce the number of injuries in the past decade, according to this piece. Many companies use statistics from agencies such as the Occupational Safety and Health Administration that track recordable injuries, as well as other benchmarks. They also use technology along with behavior modification. For instance, at PCL Enterprises in Denver, workers are encouraged to help colleagues adopt and follow safety practices. Engineering News-Record
(1/29)
| Sustainability & Green Building | |
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- Biomimicry: The key to green infrastructure?
Urban stormwater runoff is a widespread problem, and this piece looks at how cities are coping with it. Green stormwater infrastructure, such as rain gardens, green roofs and roadside plantings, is one way some cities are tackling the problem. The idea is that biomimicry, which simulates "the way nature collects and cleanses water," will keep a good portion of runoff from ever entering the pipe system. The Christian Science Monitor
(1/29)
| Leadership & HR | |
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- Are you a gracious boss?
Bosses often focus so much on showing their strength and assertiveness that they forget to be gracious, writes Kevin Daum. Traits such as humility, empathy and a willingness to defer to others are important parts of modern leadership, Daum argues. "Simply put, the most gracious and powerful leaders are the ones who understand when to step back as a follower and let the most appropriate person lead," he writes. Inc. online (free registration)
(1/29)
| Policy Watch | |
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- Transportation advocates want funding champion to replace LaHood
The resignation of Transportation Secretary Ray LaHood has caused a flurry of speculation about who will take his place. A name mentioned frequently is "Mr. Transportation" Jim Oberstar, a former Democratic congressman from Minnesota. Transportation advocates and unions are urging President Barack Obama to find a replacement who will be a champion of transportation funding. "I think it's important that the next secretary comes in with a primary strategy in mind to figure out a way to fund our transportation system's needs," said Ed Wytkind, president of the AFL-CIO Transportation Trades Department. Star Tribune (Minneapolis-St. Paul, Minn.)
(1/29), The Hill/Transportation blog
(1/30)
| ACI News | |
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- 352.1R-11: Guide for Design of Slab-Column Connections in Monolithic Concrete Structures
This guide provides recommendations for determining proportions and details of monolithic reinforced and post-tensioned concrete slab-column connections. Included are recommendations regarding appropriate uses of slab-column connections in structures resisting gravity and lateral forces; procedures for determination of connection load-carrying capacity; and reinforcement details to achieve adequate strength, ductility, and structural integrity. Recommendations are based on a review of the literature for ultimate and serviceability limit states. A commentary is provided to clarify the recommendations and identify reference material. Design recommendations are set in standard type. Commentary is set in italics. Order your copy today.
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