When Purlins Are Treated as Non-Critical Members: What Happens to Steel Buildings?
Purlins are often misunderstood in modern steel buildings, frequently labeled as non-critical elements despite their essential role in overall structural performance. While they do not serve the same primary load-bearing function as columns or rafters, purlins form a vital link in the roof load path, contributing directly to a building’s stability, safety, and long-term durability. …
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