Effect of supplementary steel of seismic response of piping systems


Seismic response of piping systems can be significantly affected by size, stiffness and weight of supplementary steel from which the piping is supported. Low Stiffness of the supports can introduce relative movements at the support points. Frequency and mass ratios between the piping and the supporting steel determine the amplification of seismic response. This study addresses the effect of various parameters on the seismic interaction between piping and supporting steel. Results of the study provide a set of criteria to adequately size the supplementary steel and to assess when the piping seismic model must include modelling of supplementary steel.

Publication Title

American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP

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