Experimental programme and analytical study of bond stress distributions on a composite plate bonded to a reinforced concrete beam

Etman, Emad; Beeby, A. W.

doi:10.1016/s0958-9465(00)00030-5

Cited by 35 publications

(13 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Due to the occurrence of dissimilar materials and the abrupt change of the cross section, stresses at plate ends become singular and the prediction is considerably complicated. Extensive experimental [5][6][7] and analytical analyses [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22] have been undertaken to investigate interfacial stresses for plated beams.…”

Section: Introductionmentioning

confidence: 99%

An improved closed-form solution to interfacial stresses in plated beams using a two-stage approach

Yang

2010

International Journal of Mechanical Sciences

View full text Add to dashboard Cite

The shear stress and the normal stresses in the thickness direction at interfaces (referred as interfacial shear and transverse normal stresses hereafter) have played a significant role in understanding the premature debonding failure of beams strengthened by bonding steel/composite plates at their tension surfaces. Due to the occurrence of dissimilar materials and the abrupt change of the cross section, the stress distribution at plate ends becomes singular and hence is considerably complicated. Extensive experimental and analytical analyses have been undertaken to investigate this problem. Large discrepancies have been found from various studies, particularly from experimental results due to the well-acknowledged difficulty in measuring interfacial stresses. Numerical analyses, e.g.2-D or 3-D finite element analysis (FEA), may predict accurate results, but they demand laborious work on meshing and sensitivity analysis. Analytical solutions, in particular those in a closed form, are more desirable by engineering practitioners, as they can be readily incorporated into design equations. This paper reports an improved closed-form solution to interfacial stresses in plated beams using a two-stage approach. In this solution, beams and bonded plates can be further divided into a number of sub-layers to facilitate the inclusion of steel bars or multiple laminae. Thermal effects may also be considered by using equivalent mechanical loads, i.e. equivalent axial loads and end 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 2 cast iron beams bonded with steel or FRP plates under mechanical and/or thermal loads.The effect of including the steel reinforcement with various ratios in the RC beam on the interfacial stresses is also investigated. Compared with previously published analytical results, this one improves the accuracy of predicting the transverse normal stresses in both adhesive-beam and plate-adhesive interfaces and the solution is in a closed form.

show abstract

Section: Introductionmentioning

confidence: 99%

An improved closed-form solution to interfacial stresses in plated beams using a two-stage approach

Yang

2010

International Journal of Mechanical Sciences

View full text Add to dashboard Cite

show abstract

“…Les essais expérimentaux ont été appliqués pour examiner les contraintes d'interface [1][2]. Cependant, l'essai expérimental des champs de contrainte d'interface semble être difficile en raison de la distribution compliquée des contraintes locales.…”

Section: Introductionunclassified

Interfacial stresses analysis of FGM porous structures bonded with FRP plates

Chedad

Elmeiche

2018

MATEC Web Conf.

View full text Add to dashboard Cite

Abstract. This paper presents a method for determining the interfacial stresses in an adhesive joint between a strengthening plate and a functionally graded beam. The beam is assumed to be isotropic with a constant poisson's ratio. The present method is based on the deformation compatibility principle taking into account the neutral axis position of the FG beam. A power law for the distribution of the mechanical characteristic with a uniform and non-uniform porosity distribution is presented. A parametric study is presented to show the effect of some parameters on the distribution of stresses in the adhesive joint between the plat and the beam. Keywords. Interfacial stresses, FGM beam, porosity.Résumé. Ce travail présente une méthode pour déterminer les contraintes d'interface au niveau de la couche d'adhésive entre une plaque en FRP et une poutre FGM, la poutre est considérée isotropique avec un coefficient de poisson constant. La présente méthode pour modéliser les contraintes d'interface est basée sur le principe de compatibilité des déformations en tenant compte de la position de l'axe neutre de la poutre FGM, la loi qui décrit la distribution des caractéristiques mécaniques de la poutre en considérant une distribution uniforme et non uniforme de la porosité est présentée. Une étude paramétrique est présentée afin d'examiner l'effet des différents paramètres régissant la distribution des contraintes d'interface au niveau de l'interface poutre-composite.

show abstract

“…To date, many experimental and analytical research projects [8][9][10] have examined FRP sheets or rods for externally strengthening or internally reinforcing materials. The externally [11][12][13][14] or internally bonded method [15], the unbonded mechanically anchored method [16,17], the prestressing method [18][19][20], and the near surface mounted method [21][22][23] have been commonly used to apply FRP to concrete beams. Attari et al [11] reported that the number of layers didn't have significant influence on the flexural stiffness (or strength), but the U-anchorage made the strengthening material and concrete well confined.…”

Section: Introductionmentioning

confidence: 99%

Flexural Behavior of RC Members Using Externally Bonded Aluminum-Glass Fiber Composite Beams

et al. 2014

View full text Add to dashboard Cite

This study concerns improvement of flexural stiffness/strength of concrete members reinforced with externally bonded, aluminum-glass fiber composite (AGC) beams. An experimental program, consisting of seven reinforced concrete slabs and seven reinforced concrete beams strengthened in flexure with AGC beams, was initiated under four-point bending in order to evaluate three parameters: the cross-sectional shape of the AGC beam, the glass fiber fabric array, and the installation of fasteners. The load-deflection response, strain distribution along the longitudinal axis of the beam, and associated failure modes of the tested specimens were recorded. It was observed that the AGC beam led to an increase of the initial cracking load, yielding load of the tension steels and peak load. On the other hand, the ductility of some specimens strengthened was reduced by more than 50%. The A-type AGC beam was more efficient in slab specimens than in beam specimens and the B-type was more suitable for beam specimens than for slabs.

show abstract

Experimental programme and analytical study of bond stress distributions on a composite plate bonded to a reinforced concrete beam

Cited by 35 publications

References 1 publication

An improved closed-form solution to interfacial stresses in plated beams using a two-stage approach

An improved closed-form solution to interfacial stresses in plated beams using a two-stage approach

Interfacial stresses analysis of FGM porous structures bonded with FRP plates

Flexural Behavior of RC Members Using Externally Bonded Aluminum-Glass Fiber Composite Beams

Contact Info

Product

Resources

About