Secondary Framing

Secondary Framing

Secondary framing includes the purlins, eaves and grit struts which support the wall and roof panels. Karthikeya Industries manufactures these in high grade steel, and they are available in a galvanized finish or factory painted.

Secondary framing have two other functions:

• Act as struts that help in resisting part of the longitudinal loads that are applied on the building such as wind and earthquake loads
• Provide lateral bracing to the compression flanges of the main frame members thereby increasing frame capacity.

Purlins, girts and eave struts are available in high grade steel conforming to ASTM A 607 Grade 50 or equivalent, available in 1.5 mm, 1.75 mm. 2.0 mm, 2.25 mm, 2.5 mm and 3.0 mm thickness. pre-They come with a pre-galvanized finish, or factory painted with a minimum of 35 microns (DFT) of corrosion protection primer.

Minimum yield strength is 34.5 kN/ cm2