Simplified analytical model for flexural response of external R.C. frames with smooth rebars

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Abstract

In this paper an analytical model in a closed form able to reproduce the monotonic flexural response of external RC beam-column joints with smooth rebars is presented. The column is subjected to a constant vertical load and the beam to a monotonically increasing lateral force applied at the tip. The model is based on the flexural behavior of the beam and the column determined adopting a concentrated plasticity hinge model including slippage of the main reinforcing bars of the beam. A simplified bilinear moment-axial force domain is assumed to derive the ultimate moment associated with the design axial force. For the joint, a simple truss model is adopted to predict shear strength and panel distortion. Experimental data recently given in the literature referring to the load-deflection response of external RC joints with smooth rebars are utilized to validate the model, showing good agreement. Finally, the proposed model can be considered a useful instrument for preliminary static verification of existing external RC beam-column joints with smooth rebars for both strength and ductility verification.
Lingua originaleEnglish
pagine (da-a)531-542
Numero di pagine12
RivistaStructural Engineering and Mechanics
Volume66
Stato di pubblicazionePublished - 2018

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Analytical models
Hinges
Shear strength
Plasticity
Ductility

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction
  • Mechanics of Materials
  • Mechanical Engineering

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title = "Simplified analytical model for flexural response of external R.C. frames with smooth rebars",
abstract = "In this paper an analytical model in a closed form able to reproduce the monotonic flexural response of external RC beam-column joints with smooth rebars is presented. The column is subjected to a constant vertical load and the beam to a monotonically increasing lateral force applied at the tip. The model is based on the flexural behavior of the beam and the column determined adopting a concentrated plasticity hinge model including slippage of the main reinforcing bars of the beam. A simplified bilinear moment-axial force domain is assumed to derive the ultimate moment associated with the design axial force. For the joint, a simple truss model is adopted to predict shear strength and panel distortion. Experimental data recently given in the literature referring to the load-deflection response of external RC joints with smooth rebars are utilized to validate the model, showing good agreement. Finally, the proposed model can be considered a useful instrument for preliminary static verification of existing external RC beam-column joints with smooth rebars for both strength and ductility verification.",
keywords = "Beam, Building and Construction, Civil and Structural Engineering, Column, Flexure, Joint, Mechanical Engineering, Mechanics of Materials, Shear, Smooth rebars",
author = "Giuseppe Campione and Liborio Cavaleri and Francesco Cannella and Alessia Monaco",
year = "2018",
language = "English",
volume = "66",
pages = "531--542",
journal = "Structural Engineering and Mechanics",
issn = "1225-4568",
publisher = "Techno Press",

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TY - JOUR

T1 - Simplified analytical model for flexural response of external R.C. frames with smooth rebars

AU - Campione, Giuseppe

AU - Cavaleri, Liborio

AU - Cannella, Francesco

AU - Monaco, Alessia

PY - 2018

Y1 - 2018

N2 - In this paper an analytical model in a closed form able to reproduce the monotonic flexural response of external RC beam-column joints with smooth rebars is presented. The column is subjected to a constant vertical load and the beam to a monotonically increasing lateral force applied at the tip. The model is based on the flexural behavior of the beam and the column determined adopting a concentrated plasticity hinge model including slippage of the main reinforcing bars of the beam. A simplified bilinear moment-axial force domain is assumed to derive the ultimate moment associated with the design axial force. For the joint, a simple truss model is adopted to predict shear strength and panel distortion. Experimental data recently given in the literature referring to the load-deflection response of external RC joints with smooth rebars are utilized to validate the model, showing good agreement. Finally, the proposed model can be considered a useful instrument for preliminary static verification of existing external RC beam-column joints with smooth rebars for both strength and ductility verification.

AB - In this paper an analytical model in a closed form able to reproduce the monotonic flexural response of external RC beam-column joints with smooth rebars is presented. The column is subjected to a constant vertical load and the beam to a monotonically increasing lateral force applied at the tip. The model is based on the flexural behavior of the beam and the column determined adopting a concentrated plasticity hinge model including slippage of the main reinforcing bars of the beam. A simplified bilinear moment-axial force domain is assumed to derive the ultimate moment associated with the design axial force. For the joint, a simple truss model is adopted to predict shear strength and panel distortion. Experimental data recently given in the literature referring to the load-deflection response of external RC joints with smooth rebars are utilized to validate the model, showing good agreement. Finally, the proposed model can be considered a useful instrument for preliminary static verification of existing external RC beam-column joints with smooth rebars for both strength and ductility verification.

KW - Beam

KW - Building and Construction

KW - Civil and Structural Engineering

KW - Column

KW - Flexure

KW - Joint

KW - Mechanical Engineering

KW - Mechanics of Materials

KW - Shear

KW - Smooth rebars

UR - http://hdl.handle.net/10447/297401

UR - http://www.techno-press.com/download.php?journal=sem&volume=66&num=4&ordernum=11

M3 - Article

VL - 66

SP - 531

EP - 542

JO - Structural Engineering and Mechanics

JF - Structural Engineering and Mechanics

SN - 1225-4568

ER -