Building owners are becoming more aware of the benefits that building information modeling brings to their construction projects, and to a lesser extent, its value in the management and operation of their buildings.
Photo by JR Long for ENR Tuned mass rail dampers (above) use steel and rubber plates to reduce vibration. Crews install precast concrete panels at rail crossings (below). Photo Courtesy Sacramento RT Related Links: $1.5-Billion Light Rail Line Takes Shape In LA The 10 Longest Urban Metro Transit Systems in the World Tight space constraints along a 4.3-mile light-rail expansion for the Sacramento Regional Transit District, or Sacramento RT, required engineers to modify plans and adopt new rail-damping technology to reduce noise in residential areas.And crews with joint-venture contractor Balfour Beatty and Teichart must meet a strict time line to
Related Links: Contractor Placing World's Largest FRP Deck, After Settling Dispute With Owner Dozens of Test Projects Later, Advocates Still Have Durable Dreams In the bucolic town of Brookfield, Vt., crews are finishing work on the world's first composite floating bridge. It is the eighth iteration of the original log bridge built in 1820, after a town resident fell through ice and drowned in what is now called Sunset Lake.The 318-ft x 20-ft, single-lane Brookfield Bridge, which carries Vermont Route 65 across the lake, employs a fiber-reinforced polymer (FRP) flotation system with a 100-year design life. Construction of the $2.4-million
Photo Courtesy Benjamin Johnson/Shawmut Design and Construction The gossamer-like net appears airy, but the sculpture is actually a highly engineered network of ropes weighing 2,000 pounds and hanging from nearby high-rise buildings at just four attachment points. Photo Courtesy Benjamin Johnson/Shawmut Design and Construction Related Links: The Crest at Galvez Plaza Boston Begins Reaping Benefits Of Big Dig Construction workers on May 3 engaged in a carefully choreographed dance of machine and muscle to erect a 2,000-lb net sculpture 365 ft over Boston's Rose Kennedy Greenway, a 1.5-mile stretch of park created after the city's Big Dig.Designed by artist Janet
Related Links: Edmonton Bridge Contractors Straighten Buckled Girders Story and Slide Show: Girders Give Edmonton Bridge Team Big Headache Steel girder sections that deflected during construction of an Edmonton, Alberta, bridge are being shipped back to the project's locally based fabricator and erector, Supreme Steel.A structural engineering team will then decide whether the girder sections on the bridge at 102 Avenue over Groat Road must be repaired or replaced entirely, city transportation officials said in a press statement.Sections of four girders suddenly underwent torsional lateral buckling, three by several feet, in the early morning hours of March 16, after they
Photo Courtesy Dan McNichol Related Links: Restoring a 1949 Hudson To Get It on the Road Again: A Slide Show Low and Slow Across America's Infrastructure Infrastructure Megaprojects: Looking For Legacies "Go low and slow, dude," suggested a man from Los Angeles, referring to my 1949 lead sled, a Detroit original. I was in Big Sur on the Pacific Coast Highway, in 2014, circumnavigating America to explore the nation’s infrastructure. As I headed south to L.A. on the last leg of my 14,000-mile journey, the phrase "low and slow" stuck in my craw.In a couple of weeks, Aileen Cho, senior
Related Links: How One Old Car Became a Metaphor for America's Infrastructure Low and Slow Across America's Infrastructure It took quite a bit of work to get "Mrs. Martin," a 1949 Hudson Commodore, from curious eBay listing to cross-country driving machine. Author Dan McNichol and his mechanic Dr. Per Christiansen—"The Hudson Whisperer"—restored the car to working order so it may serve as a rolling metaphor for America's aging infrastructure. Click the image to begin the slide show.
Related Links: Oklahoma Geological Survey Earthquake map Texas Railroad Commission FAQs on Saltwater Disposal Wells Oklahoma and Texas, two oil and gas strongholds that historically applied a very light hand to government regulation, are taking the steps to address the seismic effects of wastewater disposal associated with hydro-fracking.In late April, the Texas Railroad Commission said that it was assessing results from a recent Southern Methodist University study linking disposal well activity to several 2013 earthquakes along an ancient fault line near Azle, Texas. TRC also put Exxon Mobil on notice to show cause as to why certain of its wells
Enlarge The proposed route across America's infrastructure. Click to enlarge. Related Links: Low and Slow Across America's Infrastructure: An ENR Special Report Two strangers get into a 65-year-old car and set off across the U.S., looking for projects, plows and professionals dedicated to our nation’s infrastructure. This is what happens when two transportation infrastructure writers who’d never met, talk for an hour on the phone: Low and Slow Across America’s Infrastructure.ENR’s senior transportation editor Aileen Cho and author Dan McNichol are setting off in mid-May on a real-time documentary "road trip" in a vintage 1949 Hudson automobile that symbolizes the
Related Links: U.S. Engineering Firms Land Big Contracts In Qatar Qatar, CH2M Hill Advance Nations $4-Billion 2022 Soccer World Cup Program Global contractors, especially from China and France, are making the most of Qatar’s prodigious investment in infrastructure development. The emirate, which will host the FIFA World Cup in 2022, is spending $182 billion over the next five years. Major projects on hand include the completion of Hamad International Airport, the New Doha Port project, railway and metro projects and roads.The 26-square-kilometer New Port Project is being built in phases, with the first phase scheduled to for completion in 2016.
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