DESIGN OF A STEEL SPATIAL TRUSS CANOPY

Zadatak je proračunati prostornu rešetkastu čeličnu nadstrešnicu koja prekriva površinu 40 x 20 m uz uvjet da je rešetka oslonjena na 6 stupova visine 5 m. U prvom dijelu rada teorijski je opisana podjela prostornih konstrukcija te u užem smislu podjela prostornih rešetkastih konstrukcija. Kao rješenje odabrana je konstrukcija oblika svoda. Elementi konstrukcije podjeljeni su u 4 grupe: gornji pojas, donji pojas, kosa ispuna i stupovi te su tako i dimenzionirani. Elementi su spojeni zavarom te čine osnovni modul konstrukcije - tetraedar. Dimenzioniranje se provodi prema teoriji graničnih stanja nosivosti i uporabljivosti, odnosno, Eurocode propisima. Unutarnje sile za dimenzioniranje dobivene su pomoću programskog paketa Autodesk Robot Structural Analysis Professional 2016. – Student Version. Elementi rešetke su okrugli šuplji profili, toplo predgotovljeni, kvalitete čelika S 355. Grafički prilozi izrađen su u AutoCAD 2016. software-u.The task is to calculate a spatial grid steel eaves covering a surface of 40 x 20 m, with the condition that the grid is supported with 6 columns of 5 m height. In the first part of the work, the theoretical description of the division of spatial structures and, in the further sense, of the division of the spatial grid structure. As a solution, the shape of the vault has been chosen. The elements of the construction are divided into 4 groups: the upper belt, the lower belt, the angled filling and the columns, and are so dimensioned. The elements are welded together and form the basic building module - tetrahedron. Dimensioning is carried out according to the theory of limitation of bearing capacity and serviceability, regarding Eurocode regulations. The internal sizing forces were obtained using the Autodesk Robot Structural Analysis Professional 2016. – Student Version. Grid elements are round hollow profiles, hot-rolled, high quality steel S 355. Graphics are made in AutoCAD 2016. Software