Shear models of Rc-encased steel joist beams in MRFs

Risultato della ricerca: Article

1 Citazione (Scopus)

Abstract

This study presents the application of different analytical and finite element (FE) models aimed at predicting the shear resistance of reinforced concrete (RC) and reinforced concrete-encased steel joist (HRCESJ) beams with inclined transversal reinforcement in moment resisting frames (MRFs). In particular, four analytical models are taken into account, two of them specifically conceived for HRCESJ beams in seismic area. The analytical models considered are Eurocode-2 model for the shear strength of RC beams; a variable-inclination stress-field approach; a strut-and-tie additive model and, finally, an analytical formulation in which the shear capacity depends on the number of pairs of inclined stirrups able to yield before concrete crushing. The models are validated against a large experimental and FE dataset covering a wide range of characteristic parameters of the beam typology. The results obtained are discussed in order to stress the influence of different key assumptions adopted in both FE and analytical approaches.
Lingua originaleEnglish
pagine (da-a)14-30
Numero di pagine17
RivistaIngegneria Sismica
Volume36
Stato di pubblicazionePublished - 2019

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steel
Reinforced concrete
Steel
reinforced concrete
Analytical models
Struts
Crushing
Shear strength
Reinforcement
Concretes
crushing
typology
shear strength
stress field
reinforcement

All Science Journal Classification (ASJC) codes

  • Building and Construction
  • Safety, Risk, Reliability and Quality
  • Geotechnical Engineering and Engineering Geology

Cita questo

Shear models of Rc-encased steel joist beams in MRFs. / Monaco, Alessia; Colajanni, Piero; La Mendola, Lidia; Monaco, Alessia.

In: Ingegneria Sismica, Vol. 36, 2019, pag. 14-30.

Risultato della ricerca: Article

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abstract = "This study presents the application of different analytical and finite element (FE) models aimed at predicting the shear resistance of reinforced concrete (RC) and reinforced concrete-encased steel joist (HRCESJ) beams with inclined transversal reinforcement in moment resisting frames (MRFs). In particular, four analytical models are taken into account, two of them specifically conceived for HRCESJ beams in seismic area. The analytical models considered are Eurocode-2 model for the shear strength of RC beams; a variable-inclination stress-field approach; a strut-and-tie additive model and, finally, an analytical formulation in which the shear capacity depends on the number of pairs of inclined stirrups able to yield before concrete crushing. The models are validated against a large experimental and FE dataset covering a wide range of characteristic parameters of the beam typology. The results obtained are discussed in order to stress the influence of different key assumptions adopted in both FE and analytical approaches.",
author = "Alessia Monaco and Piero Colajanni and {La Mendola}, Lidia and Alessia Monaco",
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AU - Monaco, Alessia

AU - Colajanni, Piero

AU - La Mendola, Lidia

AU - Monaco, Alessia

PY - 2019

Y1 - 2019

N2 - This study presents the application of different analytical and finite element (FE) models aimed at predicting the shear resistance of reinforced concrete (RC) and reinforced concrete-encased steel joist (HRCESJ) beams with inclined transversal reinforcement in moment resisting frames (MRFs). In particular, four analytical models are taken into account, two of them specifically conceived for HRCESJ beams in seismic area. The analytical models considered are Eurocode-2 model for the shear strength of RC beams; a variable-inclination stress-field approach; a strut-and-tie additive model and, finally, an analytical formulation in which the shear capacity depends on the number of pairs of inclined stirrups able to yield before concrete crushing. The models are validated against a large experimental and FE dataset covering a wide range of characteristic parameters of the beam typology. The results obtained are discussed in order to stress the influence of different key assumptions adopted in both FE and analytical approaches.

AB - This study presents the application of different analytical and finite element (FE) models aimed at predicting the shear resistance of reinforced concrete (RC) and reinforced concrete-encased steel joist (HRCESJ) beams with inclined transversal reinforcement in moment resisting frames (MRFs). In particular, four analytical models are taken into account, two of them specifically conceived for HRCESJ beams in seismic area. The analytical models considered are Eurocode-2 model for the shear strength of RC beams; a variable-inclination stress-field approach; a strut-and-tie additive model and, finally, an analytical formulation in which the shear capacity depends on the number of pairs of inclined stirrups able to yield before concrete crushing. The models are validated against a large experimental and FE dataset covering a wide range of characteristic parameters of the beam typology. The results obtained are discussed in order to stress the influence of different key assumptions adopted in both FE and analytical approaches.

UR - http://hdl.handle.net/10447/365059

M3 - Article

VL - 36

SP - 14

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JO - Ingegneria Sismica

JF - Ingegneria Sismica

SN - 0393-1420

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