This paper presents a finite element model for the nonlinear analysis of beams prestressed by external slipping cables. The formulation involves composite beams with deformable shear connection; the simpler kinematical model of reinforced concrete beams can be analyzed as a special case. Cables can have general paths and can slip with no friction at the deviators. General nonlinear constitutive laws can be used for the materials, i.e., concrete, reinforcements, beam steel, shear connectors, and tendons. The proposed approach can be implemented in existing nonlinear finite element programs with no additional iterative procedures. Results of some applications are shown in order to illustrate the potential of the proposed approach in the analysis of steel–concrete continuous composite beams up to failure. Comparisons with experimental tests are performed to validate the numerical results.

Finite element model for externally prestressed composite beams with deformable connection.

DALL'ASTA, Andrea;ZONA, Alessandro
2005-01-01

Abstract

This paper presents a finite element model for the nonlinear analysis of beams prestressed by external slipping cables. The formulation involves composite beams with deformable shear connection; the simpler kinematical model of reinforced concrete beams can be analyzed as a special case. Cables can have general paths and can slip with no friction at the deviators. General nonlinear constitutive laws can be used for the materials, i.e., concrete, reinforcements, beam steel, shear connectors, and tendons. The proposed approach can be implemented in existing nonlinear finite element programs with no additional iterative procedures. Results of some applications are shown in order to illustrate the potential of the proposed approach in the analysis of steel–concrete continuous composite beams up to failure. Comparisons with experimental tests are performed to validate the numerical results.
2005
File in questo prodotto:
Non ci sono file associati a questo prodotto.

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: https://hdl.handle.net/11581/112529
 Attenzione

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

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 48
  • ???jsp.display-item.citation.isi??? 36
social impact