SECONDARY FRAMING SYSTEM

Secondary Structural Members include roof purlins, wall girts, eave struts, C–Sections, flange braces, gable angles and base angles. Purlins, Girts, Eave Struts and C–Sections (used as basechannels and as door jambs & headers in framed openings of double sliding doors) are rolled formed from 357& 315mm wide galvanized coils in thickness of 1.5,1.75,2,2.25 and 2.5 mm.

Generally, in the PEB industry the sidewall girts is connected to the sidewall rigid frame columns and to the endwall columns in a by–pass manner because it allows cables, pipes, etc. to be laid within the 200mm girt line all around the building. It also allows for a better construction of partial height block walls (normally 2.25 to 3.00m high).

 PURLINS

Z & C Purlins have replaced the conventional tubes and angles used earlier in roofing. Z–Purlins are fast gaining recognition in India due to their accuracy and wide range of applicability in various styles of roofing and side cladding. These are capable of meeting the needs of various establishments requiring large sized roofing such as Railway Platforms, Workshops, Factory Sheds, Godowns and other Industrial Sheds. AASHI Mechtech offers designing, Fabrication and manufacturing services for C–Purlins that gives strength to the roof. Whereas, C Purlins are economical and more suitable for manufacturing purposes and are highly in demand. AASHI Mechtech is instrumental in manufacturing and designing these purlins as per the inputs ordrawing specified by our clients.

ADVANTAGES OF “Z” AND “C” PURLINS

The main advantages of “Z” & “C” Purlins are: When compared to Hot Rolled Angles, they save upto 25 – 30 % cost and a reduction in more than 40 % weight of structural steel. When compared to Tubular Purlins, they save upto 30–40% in weight and 15% in costs. Erection of Purlins is much easier than others.