Derivation of floor acceleration spectra for an industrial liquid tank supporting structure with braced frame systems

摘要

Past seismic events have shown that industrial facilities may suffer greatly from earthquake-induced actions, which can cause simultaneous damages to different key apparatus, initiating major/multiple accidental chains. Therefore, the evaluation of seismic demand acting upon structural systems and equipment is of utmost importance when assessing or designing a complex industrial plant, which will be inevitably exposed to seismic hazards during its lifetime. Furthermore, it is noteworthy that, if modem seismic design procedures are able to successfully limit damage to the main structural elements, the evaluation of secondary structural and nonstructural components may imply less trivial considerations because of the important role played by them (e.g. storage of chemical/hazardous substances) and the lack of accurate code-compliant approaches applicable to each specific case.