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These improvements include a new stability design method, the direct analysis method, more complete considerations of different column buckling limit states (flexural, torsional and flexural-torsional buckling), and improved axial load and flexural resistance provisions. Furthermore, the new design procedures incorporate many of the improvements achieved in the AISC (2005&2010) Specifications to metal building frame design. An equivalent prismatic member concept utilized in prior research and the prior AISC provisions is generalized to accommodate the broad range of member types and configurations commonly used in metal building industry. This research develops new design procedures for design of frames using general prismatic members and web-tapered members.

As a result, metal building manufacturers have tended to develop their own methods for design of the wide range of nonprismatic member geometries and configurations encountered in practice. Unfortunately, these previous AISC provisions address only a small range of practical designs. provisions for design of frames with web-tapered members were provided in the AISC ASD (1989) and LRFD (1999) Specifications. Metal building frames are typically designed using welded prismatic and web-tapered members with doubly-symmetric and/or singly-symmetric cross sections. As a result of this study, the existing condition of the construction sector and the means to improve use of structural steel in Turkey were discussed more realistically. Rkiye Esnaf ve Sanatkar Kredi Kefalet Kooperatifleri Merkez Birligi (TESKOMB) Building was investigated in terms of the design and production criteria for steel structures and to determine problems faced during these processes. Additionally, a case study was carried out on a steel office building in Ankara. Within this framework, a literature survey was conducted on structural steel components and structuresĪnd on steel construction in Turkey.

In this context, the main purpose of this study was to define, analyze and evaluate the general characteristics of structural steel and steel construction with the purpose of throwing new light on its advantages and disadvantages. Steel construction is one of these areas. It is vital that Turkey keep abreast of developments in the world and build up its technology to become a developed country.