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If the combined piping with support structure model involves analysis of static accelerations (static seismic or transportation loads) or any dynamic analysis, users will usually need to modify the default Mass Source in the combined model. The default mass source for CSiPlant includes piping and frame member selfweight, fluid contents, insulation, inner liner, and cladding if modeled. However, structural analysis models almost always consider the weight of heavy equipment, cable trays and other objects with significant weight and mass by assigning gravity-direction distributed loads and/or gravity-direction concentrated point loads to represent the weight of those objects. Below left is the default Mass source after importing a SAP2000 model. This default Mass source ignores the gravity-direction loads included in the SAP2000 model.
Selected pipe support reactions from the combined model can be automatically exported back into the SAP2000 structural model, thereby saving time, confusion and errors associated with marked-up isometrics, spreadsheets, and other manual methods of communicating pipe support reactions from piping stress to the structural team. See Define menu>Support reaction export request to view options to selectively export by Load case, pipe section, Pipeline label, design request, and by support. CSiPlant can export individual load cases as well as load cases that include a combination of loads. After defining a support reactions export request and analyzing the model, in order to export pipe support reactions to SAP2000, go to Analyze menu>Export support reactions where you will be prompted to select the support request as well as select the SAP2000 model to which the support reactions will be exported.
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