EXPERIMENTAL STUDY ON COLD FORMED STEEL PURLIN SECTIONS

Cold formed steel purlins are the widely used structural elements in India. Practically 'Z' sections are provided, where the span of the roof purlins is sloped and the length of the span is maximum. The objective of this investigation is to study the behaviors of cold formed steel 'Z' purlin sections. Three members of Zinc coated cold formed 'Z' sections and three numbers of ordinary cold formed 'Z' sections were tested under two point bending with simple supports. The results obtained from experiments were compared with theoretical deflection. The theoretical and actual load carrying capacity of the section is compared. The load vs. deflection behavior is also presented and discussed.