This Bachelor`s thesis deals with the design and assessment of steel structure of the sports hall in Olomouc. The building dimensions are 30 x 45 m. Minimum headroom of the hall is 10 m. The supporting structure of the roof is formed by a system of purlins and truss arches with a span of 30 m, which are hinged on steel fixed columns. The distance between each crosslink is 5 m. The spatial rigidity is provided by transverse and longitudinal stiffeners. The steel S355 is used as the main material in load-bearing elements. The structure is designed according to standards ČSN EN. The work includes technical report, static calculation reviewing the major structural elements of construction and design of joints and drawings