Topcon boosts BIM at the Music City Centre in Nashville

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andyevans
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Topcon boosts BIM at the Music City Centre in Nashville

Post by andyevans »

http://www.amerisurv.com/content/view/9611/
The 1.2 million-square-foot Music City Center in Nashville will have plenty of design features and spaces for visitors to talk about when it is scheduled to open in February 2013: The multifunction exhibit hall covers 350,000 square feet, or about eight acres; the grand ballroom contains 57,500 square feet and the junior ballroom contains 18,000 square feet and sixty meeting rooms occupying 90,000 total square feet. Several sustainable features put the new convention center on track to achieve Leadership in Energy and Environmental Design (LEED) Silver certification from the U.S. Green Building Council, such as a 175,000-square-foot green roof designed to mimic the rolling hills of Tennessee and a 360,000-gallon collection tank that will store rainwater from the roof that will be used to irrigate outdoor landscaping and flush the hundreds of toilets in the building.

None of these features will be located where they should be if the steel contractors on the project--including Schuff Steel Atlantic--do not install 11,000 tons of structural steel where the official building survey dictates. Schuff is primarily erecting structural steel that will form the interior backbone of what is arguably the facility's most distinctive architectural feature: a 162-foot wall at the north end of the main structure that rises out of the main roof and resembles the body of a guitar from a bird's-eye view. The metal panel wall will enclose the grand ballroom on the ninth floor.

Laying out the structural steel for the radial shape of the guitar wall presents Schuff with a significant challenge. The contractor is using high-speed precision scanning technology to meet it.
In March 2011, Schuff began laying out and erecting the steel framework for the guitar wall on the north side of the building. The contractor worked in a clockwise direction from the north side, ensuring that every quarter-inch of the steel beams was positioned precisely in the as-built surveys it had contracted to provide. Schuff used a total station for this task on the straight wall section it started on. "It wasn't until we got into the curvature section that we figured that the scanner would give us a lot more accuracy," Fugera said of Topcon Positioning Systems GLS-1000 and GLS-1500 laser scanners rented out by Earl Dudley, Inc., a surveying and geospatial equipment dealer with five locations in the Southern United States. Given the design of the radius walls, determining the X, Y and Z dimensional locations of every quarterinch of the steel beams using conventional surveying equipment would have been too costly, according to Fugera.
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Re: Topcon boosts BIM at the Music City Centre in Nashville

Post by Matt Young »

Quite an interesting read.

Was Tekla structures software involved as it is aimed at BIM and is also owned by Topcon I think?
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