Unlike Europeans structural designs that are used, based mostly on the use of hot-rolled profiles, we have always taken care put in some American structural designs. In particular to which are characterized by the use of cold formed profiles (coldformed profiles) and of course the armed grid variable section (welded tapered sections).
Regarding the first type, with a normative basis cosnta broad and constant experimentation and advanced achievements surprised to see roof structures for large surfaces with a system called 'joist beam. "
This system is based on employment as the only structure covered with a large belt light, consisting of cold formed profiles in the form of lattice, which sits on the walls of the building envelope, or conventional metal frame.
cosiguen designs are really very low weight per m2 and a completely light appearance.
With the idea put into continuous improvement of our buildings, developed in 2006 in collaboration with the School of Industrial Engineering at the University of Girona, a draft final career studying these elements.
The idea was to use two types of cold-formed profile available in our production of structures, to form some elements' joist beam "completely screwed for jobs in logistics preferred type buildings.
The project consisted of a theoretical part, where analyzed the properties of thin sections based on the EN-1993-1-3 (Eurocode 3). From here, the second part consisted of developing a table for using these items, depending on the load, length between supports, separation between profiles, etc). Finally, the project consisted of a load test test scale in our facility, supervised by staff from the University of Girona.
The results calibrate the theoretical model calculation, taking into account phenomena due mainly to the effect of gambling in the holes bolted connections. This type of structural element light is shown valid for lights cover more than 20 mts.
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Aleix Sympathetic Avalos, a student responsible for carrying out the Final Year Project, which briefly explains his experience (in Catalan). Aleix currently still involved with Vircop group as senior engineer calculation.
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