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SECONDARY FRAMING structural
members are the Purlins , Girts , Eave Struts and diagonal / portal frames
bracing. Purlins support the roofing while Girts supports the side wall
cladding . Purlins and Girts also helps in resisting part of longitudinal
forces generated due to wind or earthquake loads and
they provide lateral bracing to the compression flanges of the main frame
members thereby improving the
primary frame capacity.
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