Industrial buildings consist of an important part of steel constructions in Turkey. These structures, which are generally used to cover large spans, are formed by bringing one or more frame systems side by side. The steel materials is used more than reinforced concrete in such structures due to the light weight and high strength. In this study, tapered steel I section is used to model a hangar in Samsun provience. Finite Element anlayses are carried out to perform the behavior of the hangar under seismic loads. The hangar has a single span system with a width of 16 m and a length of 24 m and a height of 7.5 m. In this study, IPE profile in columns, trusses and purlins, and box profiles in side X braces. Sap2000 software is used for Finite Element models to investigate the mechanisims of the hangar made of tapered steel I sections. The aim of the study is to perform intensive parametric studies to provide the depth understanding of the advantages of tapered cross-sectional models corresponding to the constant cross-sectional models. It is found that the models made of tapered I section members has 8 % less weight than the corresponding constant section members. As a result of that, it may be possible to reduce to construction cost by using tapered steel I sections since this also decrease the seismic load effects in the hangar compared to the constant cross-sectional model.
Tapered I section, Seismic load, Braced frame, Finite Element model, Hangar