My diploma thesis provides the static analysis of the steel structure and the dimensioning of the corresponding elements and joints of the building which presents a cultural and educational center. The listed building is located in the city of Rijeka. The object is biaxialy symmetrical with a rectangular shaped plan that includes dymensions of 56,0 m x 35,0 m. The height of the object is 9,80 m, and it is equal at the ends as well as at the ridge of the structure, taking into cosideration the roof construction that includes a flat roof with a minimum required inclination of 1,5%. The analysis of the facility was carried out using the Eurocode 0, Eurocode 1, Eurocode 3 and Croatian National annexes. The effects of variable structural load were analyzed using the Eurocode 1 (EC1) standard and the National annexes of snow and wind effects on the Croatian geographical area. The effects of continuous loads of cover, lining, and installation were determined from the aforementioned additions, while the own weight of the construction elements was taken into account in the Tower7 programme. The dimensioning of elements as well as the joints of these construction elements is carried out in accordance with Eurocode 3 (EC3) standards. The static analysis of the object as well as the dimensioning of the elements of the construction is carried out with the help of program Tower7 which is used for static and dynamic analysis and dimensioning of the steel structures. Each element of the construction as well as its connections are checked for the serviceability limit state (SLS) including the mechanical resistance of the elements and the limit state loads (LSL) including the stability of each element and the construction compound.