A significant number of damages in piping systems and components during recent seismic events have been reported in literature which calls for a proper seismic design of these structures. Nevertheless, there exists an inadequacy of proper seismic analysis and design rules for a piping system and its components. Current seismic design Codes are found to be over conservative and some components, e.g., bolted flange joints, do not have guidelines for their seismic design. Along this line, this paper discusses about the main issues on the seismic analysis and design of industrial piping systems and components. Initially, seismic analysis and component design of refinery piping systems are described. A review of current design approaches suggested by European (EN13480:3) and American (ASME B31.3) Codes is performed through a Case Study on a piping system. Some limits of available Codes are identified and a number of critical aspects of the problem e.g., dynamic interaction between pipes and rack, correct definition of the response factor and strain versus stress approach, are illustrated. Finally, seismic performance of bolted flange joints based on the results of experimental investigations carried out by the University of Trento, Italy, will be discussed.
Main Issues on the Seismic Design of Industrial Piping Systems and Components
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Paolacci, F, Reza, MS, Bursi, OS, Gresnigt, AM, & Kumar, A. "Main Issues on the Seismic Design of Industrial Piping Systems and Components." Proceedings of the ASME 2013 Pressure Vessels and Piping Conference. Volume 8: Seismic Engineering. Paris, France. July 14–18, 2013. V008T08A018. ASME. https://doi.org/10.1115/PVP2013-97642
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