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Proper consideration of pipe/structure interaction has typically been ignored or greatly oversimplified because before CSiPlant there was not a reliable practical tool to properly consider combined pipe/structure interaction. Modeling structural frames in a legacy pipe stress program is inefficient time-consuming and very limited. A typical pipe rack structural analysis model has a LOT of assigned loads which account for weight load of heavy equipment, live loads, cable tray loads, fireproofing, and other entities with significant weight and mass. Those assigned loads need to be properly accounted for if you want to have a realistic analysis of piping combined with the structure.
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