What is the difference between 'Inventory Rating' and 'Operating Rating' in bridge load rating?
The difference between 'Inventory Rating' and 'Operating Rating' in bridge load rating lies in the level of safety margin and the purpose for which each rating is used. Inventory Rating represents the load level that can safely utilize the bridge for its design life, reflecting the capacity based ....
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Angel Patricio Garcia
“The difference between inventory rating and opereating rating in bridge load rating lies in the level of safety margin and the purpose each serves. Inventory Rating reflects the load level a bridge can safely carry over its design life, based on original design assumptions and material properties with minimal damage or deterioration - its a conservative estimate meant to ensure long term structural durability. Operating rating, by contrast, represents the maximum permissible load the bridge can carry, allowing for some acceptable risk and minor permanent damage; its higher than the inventory rating and is used to evaluate whether the bridge can handle occasional overloads or permit vehicles. In short, Inventory rating governs routine traffic and long term health, while operating rating covers infrequent, heavier loads with somewhat reduced safety margin.”
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