NEN NVN ENV 1998-4 : 1998

Gives principles and application rules for the seismic design of the structural aspects of integrated facilities composed of pipeline systems and of storage tanks of different types and destinations, as well as for independent items, such as for example single water towers serving a specific purpose or groups of silos enclosing granular materials, etc. Also be used as a basis for evaluating the amount of strengthening needed by existing facilities to bring them up to present standards.