Seismic analysis and design of industrial pressure vessels

Abstract

The present paper focuses on the seismic analysis and design of horizontal-cylindrical and vertical-cylindrical pressure vessels. First, a comparison of the seismic provisions in ASME B&PV code and in EN 13445-3 is conducted for two specific case studies, which constitute typical vessels used in pertochemical facilities. In addition, a numerical investigation is conducted, aimed at proposing a reliable value of the behavior factor for those structures. Those issues are examined numerically, simulating the above pressure vessels with nonlinear finite element models. Finally, a methodology for determining seismic forces due to liquid sloshing horizontal-cylndrical vessels is outlined. The results of the present study can be used towards a safer and more reliable design of industrial pressure vessels under seismic action.