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Título
Plastic calculation of slender beam frames systematic method based on mechanism theory
Año del Documento
2021
Editorial
Elsevier
Descripción
Producción Científica
Documento Fuente
Structures, 2021, vol. 34. p. 2840-2847
Abstract
This work focuses on the limit analysis or plastic calculation of slender beam planar frames using a direct method based on the Virtual Works Principle (VWP). The method consists in looking for the structure’s collapse mechanism from the equilibrium equations posed by means of virtual problems in displacements. This approach, in its classic formulation, is very unsystematic and requires a convenient choice of virtual problems.
In this work, it has been possible to systematize the plastic calculation of the structure by applying the theory of mechanisms to obtain, fully automatically, the equilibrium equations necessary to completely solve the structure. Also, the compatibility equations necessary to know the accumulated rotations in the plastic hinges at the instant of collapse are presented. Finally, the search for the collapse mechanism is not carried out by trial and error, but is posed by optimization based on energy criteria.
Palabras Clave
Limit analysis
Análisis de límites
Collapse mechanism
Mecanismo de colapso
ISSN
2352-0124
Revisión por pares
SI
Propietario de los Derechos
© 2021 Elsevier
Idioma
eng
Tipo de versión
info:eu-repo/semantics/publishedVersion
Derechos
openAccess
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