Monday, May 13, 2019
Structural Fires and Structural Failures Essay Example | Topics and Well Written Essays - 1750 words
Structural Fires and Structural Failures - Essay ExampleEfforts started in 1980 to keep track of fires and  chance upon measures to reduce structural failures and after three decades, the damages in casualties as well as   carryplane propeller reduced by almost fifty percent. Structures were  sort into different types to better access the parameters and predict the  quantify the fire takes to consume the structure. This classification also gives firefighters better assessment to fight or counter fires. The  promote by which fires spread throughout the structure depends on three major factors oxygen source, fuel and the  rouse source. Oxygen is necessary for  impatient and air is the primary source, the  national of the structure provides fuel source for burning and different components burn with different speeds, and finally some elements of the structure contribute towards the heat source which raises the air temperature to a point where everything bursts into flame and it is known    as flashover. Structural fires r individuallying flash point  atomic number 18 almost impossible to control and often lead to structural failure. Structure Types Structural fires argon classified as per type of structures, depending on their external and internal composition of construction materials. Since every material  ruin with a different rate and in turn produces heat as well as smoke.  raise up released contributes towards raising temperature of local air, which results in flash over. Every structure has different set of materials and that is why each structure takes different time to reach flash over. The structures  be classified into five types with ascending  range of burning. Type I consists of structures with steel and concrete used to provide structural strength, making it the most  repelling to fires. Type II uses steel to reinforce the structure of the roof, which provides additional support for the structure and in  situation delays roof collapse. Type III is ordin   ary structures with exterior and interior made of brick and mortar, which  ar non-combustible. The interior  may also have laminated or fire retardant wooden floors. Type IV is heavy  timber structures which rely on timber to reinforce the structure, however, the exterior walls are made from bricks. Type V are wooden structures with wood used to form the basic frame of the structure, as well as, exterior and interior (Dunn, 2013). In simple, structures with steel and concrete, that is Type I and II, are the most resistant to fire as they are capable of handling heat generated for longer durations, whereas, structures with wood, either interior or exterior are  sunk at a faster rate, which includes Type IV and V. Occupancy Types Occupancy type involves type of  exercise the structure is designed for and therefore, classified accordingly for fire hazards. Structural fires are a result of  kind actions and the type of occupancy dictate regulations for a specific structure. Some of the    groups among this classification include Assembly, Business, Education and Factories. These groups are subdivided depending on type of activities carried out within the structure. In general, fire hazard increase with increase in the number of occupants within the structure as well as the scope of activity. Factories are more  vulnerable to fires than any other group, because, they involve manufacturing and storage. The materials involved are lots more hazardous and chances of fires are much   
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