Design of Steel Structures

12

Light-Gauge Steel Sections

(A design based on the working stress method)

12.1 Introduction

Light-gauge steel sections are also known as cold formed steel sections. These sections are made from thin sheets of uniform thickness without the application of heat. The thickness of the sheet used is generally between 1 mm and 8 mm. These types of sections are extensively used in the building industry as purlins girts, light struts, roof sheeting, and floor decking and so on. These sections become economical for light loads and to form useful surfaces such as roof covering, wall panels. Nowadays, these are widely used, especially, in pre-engineered steel buildings.

These sections are manufactured primarily by two processes. The first process is by ...