Akademik Veri Yönetim Sistemi
Researches on Science and Art in 21st Century Turkey, Prof. Hasan ARAPGIRLIOGLU Assist. Prof. Atilla ATIK Prof. Robert L. ELLIOTT Assoc. Prof. Edward TURGEON, Editör, Gece Kitaplığı , İstanbul, ss.29-36, 2017
Cold-Formed Steel (CFS) buildings have been used for over a century in North America, Australia
and New Zealand. Extensive damage observed on reinforced concrete buildings after the 1999 Marmara
and 2011 Van earthquakes led to considering CFS buildings as an alternative choice in the Turkish
members and 85 % less than RC members), easy to handle, economical, dimensionally stable, and fast
constructed. Furthermore they are available in a variety of standard shapes and sizes to accommodate any
structural requirements. Also they can easily prefabricate at the construction site, or can be assembled
in panels at the factory. The structural system of CFS buildings composed of cold-formed steel members
that can be classified into two major types: (1) individual structural framing members and (2) panels
and decks. General view of a CFS building structural system and its connection details is shown in Fig.
1. CFS members sections are cold-formed from carbon or low alloy steel sheet, strip, plate, or flat bar in
cold-rolling machines or by press brake or bending brake operations. The thicknesses of such members
usually range from 0.0149 in. (0.378 mm) to about 1/4 in. (6.35 mm) even though steel plates and bars
as thick as 1 in. (25.4 mm) can be cold-formed into structural shapes. Fortunately, under vertical loading
the design principles of the thin-walled steel profiles is well established and codified. However, under
lateral loadings such as wind and earthquake loads efficiently design is needed. Commonly, in cold-formed
steel houses the lateral load resisting system is Sheathed Cold-Formed Steel Stud Shear Walls (SSWs).
These shear walls are generally obtained by assembling of single internal and coupled back-to-back external
profiles (studs) which have a lipped channel cross-section. The studs are interconnected at each end by
members (tracks) having unlipped channel cross-sections, in such a way to realize a cold-formed steel
frame called ‘stud wall’. This frame is usually sheathed with wood- based and/or gypsum-based panels
but, in some cases, steel sheets or composite sandwich panels are used.