Abstract This paper deals with the implementation of a beam finite element, suitable for the analysis of steel-concrete composite decks affected by the shear-lag in the slab, in a program for the analysis of bridges with complex static scheme, such as arch bridges, bow-string bridges and cable stayed bridges. The deck model and the relevant beam finite element are adapted in the three-dimensional space on the basis of a model previously proposed by the authors. The problems of the spatial orientation of the element and the connectivity with traditional beam and truss finite elements are discussed. A special constraint is introduced to solve the ill-conditioned problem due to the zero torsional stiffness and the zero flexural stiffness on the co-ordinate plane parallel to the slab. Finally, an application to a realistic arch-latticed bridge is presented in order to show the potentiality of the method.

Implementation of a beam element including shear-lag in the analysis of bridges with complex static scheme

GARA, Fabrizio;
2007

Abstract

Abstract This paper deals with the implementation of a beam finite element, suitable for the analysis of steel-concrete composite decks affected by the shear-lag in the slab, in a program for the analysis of bridges with complex static scheme, such as arch bridges, bow-string bridges and cable stayed bridges. The deck model and the relevant beam finite element are adapted in the three-dimensional space on the basis of a model previously proposed by the authors. The problems of the spatial orientation of the element and the connectivity with traditional beam and truss finite elements are discussed. A special constraint is introduced to solve the ill-conditioned problem due to the zero torsional stiffness and the zero flexural stiffness on the co-ordinate plane parallel to the slab. Finally, an application to a realistic arch-latticed bridge is presented in order to show the potentiality of the method.
9780955625404
File in questo prodotto:
File Dimensione Formato  
2007 ICSAS - Gara Ranzi Leoni - proceedings.pdf

non disponibili

Tipologia: Documento in Post-print
Licenza: NON PUBBLICO-Accesso privato/ristretto
Dimensione 462.65 kB
Formato Adobe PDF
462.65 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11566/47770
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact