Cold-Formed Steel Design


Cold-Formed Steel Design

In steel construction, there are two main families of structural members. One
is the familiar group of hot-rolled shapes and members built up of plates. 
The other, less familiar but of growing importance, is composed of sections coldformed
from steel sheet, strip, plates, or flat bars in roll-forming machines or
by press brake or bending brake operations.1.1,1.2,1.3* These are cold-formed
steel structural members. 
The thickness of steel sheets or strip generally used in cold-formed steel structural members ranges from 0.0149 in. (0.4 mm) to about in. (6.4 mm). Steel plates and bars as thick as 1 in. (25 mm) can be 1–4 cold-formed successfully into structural shapes.1.1,1.4,1.314
Although cold-formed steel sections are used in car bodies, railway
coaches, various types of equipment, storage racks, grain bins, highway products,
transmission towers, transmission poles, drainage facilities, and bridge
construction, the discussions included herein are primarily limited to applications
in building construction. For structures other than buildings, allowances
for dynamic effects, fatigue, and corrosion may be necessary.

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