PART -1 **A tapered frame building (PEB) utilizes sag rods and L-cleats to provide structural

n steel building construction, a tapered frame building (often a Pre-Engineered Building or PEB) utilizes sag rods and galvanized iron (GI) L-cleats to provide structural stability to the purlins or girts that support the roof and wall cladding. omponent Breakdown • Tapered Frames: Built-up steel sections where the depth of the web increases at areas of higher bending moments (like the knee/eave joint) and decreases where the stress is lower. This optimizes steel usage and reduces cost. • Sag Rods: Tension rods fastened between purlins or girts. They prevent the purlins from sagging, twisting, or deflecting laterally under the weight of the roof/wall sheets and wind loads. • GI L-Cleat (Angle Cleat): A L-shaped bracket made of galvanized iron. It serves as the physical connection piece bolted or welded to the tapered main frame to hold the purlins in place, or used at the ends of sag rods for secure anchoring.