SEISMIC ANALYSIS OF A VERTICAL CYLINDRICAL STEEL TANK, ACCORDING TO THE NORTH AMERICAN AND NEW ZEALAND CODES
DOI:
https://doi.org/10.18867/ris.113.610Keywords:
tanks, analysis, response spectrum, behaviourAbstract
Considering the susceptibility of vertical cylindrical steel tanks, located in industrial facilities, to suffer some level of damage in the occurrence of earthquakes of great magnitude; and given the absence in the Republic of Cuba of a design code that allows the hydrodynamic analysis of this type of structures, the results of the analysis of a vertical cylindrical steel tank, located in the southeastern area of Cuba, specifically, in the province of Santiago de Cuba, are evaluated. In the present work, the results of the analysis performed to a vertical cylindrical steel tank, located in the southeastern area of Cuba, specifically, in the province of Santiago de Cuba; which is subjected to horizontal seismic excitation, taking as reference the design codes API-650 (2013) and SDST NZSEE (2009), from the parameters that characterize the seismic hazard of the Republic of Cuba, established in NC 46:2017, are evaluated. Such analysis is carried out with the objective of being able to compare the variations that occur between the fundamental design parameters, allowing to conclude that, the main differences observed, are fundamentally due to: (1) mechanical model used, (2) design philosophy, (3) damping with respect to the critical of the modes, (4) acceleration coefficients, (5) combination of the response, among others aspects.
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