False Truss Failure

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In the last eighteen years in Baltimore, lightweight truss construction has become a household name in firefighting. Two reason for this is the amount of new construction in the area and secondly, the unpredictability of lightweight truss failure during fire attack. Brannigan's (2015, p. 202) describes Lightweight wood truss as a 2-inch piece of wood, the lightweight wood truss is pieced together on a factory table and subsequently joined together with light gauge galvanized steel gusset plates. IFSTA states (2015, p. 287) the reduced mass of their components and the interdependence of those components make them vulnerable to early failure under fire conditions. CDC states that that lightweight wood truss can fail early as 6 to 13 minutes

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