BIG-80 anchorage consists of a “U” folded steel sheet with a central hole for anti-rolling continuous “I” shaped concrete joists.

 

 

The attachment of the purlin is made by using a threaded coupler placed previously in the precast column and a threaded bar.

 In addition, depending on the exposure class, BIG-80 anchorages can be supplied in zinc plated, hot-dip galvanized or in stainless steel.