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New Valenciennes Stadium Modeled with Advance Steel
The new stadium in Valenciennes, France, is located near the original one, and has a 25000-person capacity. It is meant to host the Valenciennes Anzin Football Club's games. ETI Design Office is in charge of this project.
PARIS, FRANCE, October 07, 2011 /Architecture PR News/ -- The conception of the new Valenciennes Stadium has required the expertise of ETI Design Office, which managed the complete study of the Alps stadium of Grenoble (France) in 2006 and worked on the extension of Marcel Picot stadium in Nancy in anticipation of the Euro 2016 football cup that will take place in France. The size of the project required four people working full-time on it: one Project Manager, Mr Fabrice Grisot, one Construction Engineer, Mr Stephane Dottori, and two draftsmen.
The steel structure of the stadium stands as a support for ready-made concrete bleachers; it consists of tapered box beams made of "Y-shaped" welded plates. An access footbridge located under the steel roof enables easy technical access to the stadium's perimeter.
Preliminary studies of the steel structure and modeling: about the use of Advance Steel
ETI started using AutoCAD to draw the first lines of the project in 2D and submit it to the contracting owners. The project owner and architect's need to view more precise details in 3D about the most complex assemblies required the use of Advance Steel , which has a Building Information Modeling (BIM) approach.
With the flexibility of its numerous tools, Advance Steel enabled fast modeling of all steel structural elements, whether by using integrated libraries of standard sections or by using the automatic conversion tool that allows converting AutoCAD elements into polygonal plates.
An imperative of this architectural project: a steel structure without any visible bolts
In order to follow the architect's wish to have no visible bolts on the structure once the construction is erected, ETI had to design assemblies early from the study phase. Thus, bolted assemblies were designed to ease the transport of parts (that can reach a weight of 10 tons each) and the parts were welded together at site with fastening plates. The welds were then painted and grinded to get a perfect aspect. Therefore, it was necessary to model many weld preparation chamfers on the edges of the plates and the profiles to get a realistic result and, most of all, for these elements to appear clearly on the fabrication drawings.
From the 3D model that is automatically numbered, Advance Steel allowed the automatic creation of all fabrication and assembly drawings, with all the necessary labels and dimensions for the workshop. In addition to the drawings generated as DWG files that can be easily read by the architect, the steel parts could be directly transferred as DSTV and DXF files to the CNC machines located in the workshop of a subcontractor in charge of the fabrication of the structure.
Assembling the steel structure without errors
The assembly drawings generated from the 3D model included all the necessary 2D and 3D views for the assembly teams to perfectly understand everything at site. Since all verifications of clash detection were applied on the Advance Steel digital 3D model, no adaptations at site were needed during the erection of the structure.
Mr. Stephane Dottori, Construction Engineer for ETI Design Office: "We didn't get a single phone callfrom the site reporting an error!"
About ETI...
Headed by Mr. Fabrice Grisot, company ETI (International Studies and Techniques) was created in 1982 at Echirolles, near the city of Grenoble, France. For its 3D CAD studies of miscellaneous steel structures (school facilities, stadiums, ski lifts, hospital facilities, airport halls...), ETI is equipped with 5 "premium" Advance Steel licenses since 2006. For further information, please visit: www.eti-ingenierie.fr
About GRAITEC...
Founded in 1986, GRAITEC is a major software developer for civil engineering offering a Building Information Modeling (BIM) system that automates the entire structural process. Used by more than 30,000 professionals worldwide, GRAITEC solutions have helped in creating outstanding projects: Coeur Defense tower, Stade de France stadium, Cairo Subway, Düsseldorf International Airport, Băneasa Shopping City in Bucharest, Milano Fair, etc. The GRAITEC Group has more than 250 employees working in 12 companies (France, Germany, Czech Republic, Romania, Russia, United Kingdom, Singapore, Canada and USA). GRAITEC also manages an international network of more than 30 resellers. For more information, please visit www.graitec.com
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