Static and Fatigue Performance of RC Beams Strengthened with CFRP Laminates

Shahawy, Mohsen; Beitelman, T.

doi:10.1061/(asce)0733-9445(1999)125:6(613)

Cited by 121 publications

(69 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Their high strength-to-weight ratios and weather resistance reignited interest in FRP composites for bridge repair and rehabilitation [9] during the late 1970s. In such applications, FRPs have demonstrated their ability to support the structural integrity of reinforced concrete (RC) [10][11][12][13][14][15]. With stiffness's similar to steel, carbon fibre reinforced polymers (CFRPs) have emerged to be one of the most appropriate composites for strengthening steel, e.g., CFRP have been demonstrated to increase the fatigue life and load carrying capacity of steel members [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Bond durability of fatigued CFRP-steel double-lap joints pre-exposed to marine environment

Borrie

Liu

Zhao

et al. 2015

Composite Structures

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Bond durability of fatigued CFRP-steel double-lap joints pre-exposed to marine environment

Borrie

Liu

Zhao

et al. 2015

Composite Structures

View full text Add to dashboard Cite

“…This assumption is reasonable because an approximately linear strain distribution along the beam height was experimentally observed during the fatigue loading (Shahawy et al 1999); 2) No bond-slip is assumed between concrete and other component materials (i.e. steel reinforcement and FRP); and 3) Due to the low tensile strength of concrete, the tension role of concrete is ignored in the calculation.…”

Section: Calculating the Stress Amplitude Of Each Loading Blockmentioning

confidence: 99%

Fatigue life prediction of RC beams strengthened with externally bonded FRP sheets

Wang¹,

Huang²

2015

Proceedings of the Second International Conference on Performance-Based and Life-Cycle Structural Engineering (PLSE 2015)

View full text Add to dashboard Cite

Based on the failed criterion of steel reinforcement fracture, an analytical model is presented for predicting the fatigue life of reinforced concrete (RC) beam strengthened with fiber reinforced polymer (FRP) sheets. In this model, the load cycle is divided into some loading blocks evenly and the stress amplitude of the tensile steel reinforcement is thought to be invariable in each loading block. Considering the degradation of material performance, including concrete creep, the stress amplitude of the tensile steel reinforcement is obtained by using the traditional sectional analysis method. Therefore, the fatigue life of the strengthened beam is carried out by using the well-known Palmgren-Miner rule. The reliability of the proposed analytical model is validated through comparisons with previous test results reported by the relative research groups. The compared results show that the proposed models can predict the fatigue life of the strengthened beam with an acceptable degree of accuracy.

show abstract

“…Harries et al (2007) studied the effect of adhesive stiffness; the results showed that the generated stress in tensile steel under fatigue loading was greater with more flexible adhesive due to reduce ability of the adhesive to transfer stress to the strengthening material. From most of the studies Toutanji et al 2006;Barnes and Mays 1999;Shahawy and Beitelman 1999;Papakonstantinou et al 2001;Aidoo et al 2004;Masoud et al 2001;Dong et al 2011), the general behavior of beams strengthened with FRP is that there is an initial change in stiffness and increase of deflection due to a redistribution of the cracks in the beams. This is then followed by unchanging stiffness with increasing deflection due to the cyclic creep, the time evolution of the plastic strain under cyclic load, of the concrete as explained by Papakonstantinou et al (2001).…”

Section: Epoxy Bonded Systemmentioning

confidence: 99%

Examination at a Material and Structural Level of the Fatigue Life of Beams Strengthened with Mineral or Epoxy Bonded FRPs: The State of the Art

Mahal

Blanksvärd

Täljsten

2013

Advances in Structural Engineering

View full text Add to dashboard Cite

This paper presents a state of the art review of different material combinations and applications of mineral-based and epoxy-based bonded Fiber Reinforced Polymers (FRP), used for the strengthening of concrete structures subjected to fatigue loading. In this review, models of the fatigue life at the material and structural level are presented. This study examines the mechanical behavior of the FRP-material, surface bonding behavior and concrete beams strengthened under fatigue loading with different types of FRP-systems. The parameters that are investigated are applied load value, time dependent effects, type of strengthened structures (shear, flexural or combined) and the configuration of sheets or plates. The building codes and researchers' recommendations are also discussed. As a result of this review, the reader will obtains an overview of suitable materials and methods for strengthening structures subjected to fatigue loading by referring to the estimated fatigue life of material and strengthening structures at various applied stress levels.

show abstract

Static and Fatigue Performance of RC Beams Strengthened with CFRP Laminates

Cited by 121 publications

References 4 publications

Bond durability of fatigued CFRP-steel double-lap joints pre-exposed to marine environment

Bond durability of fatigued CFRP-steel double-lap joints pre-exposed to marine environment

Fatigue life prediction of RC beams strengthened with externally bonded FRP sheets

Examination at a Material and Structural Level of the Fatigue Life of Beams Strengthened with Mineral or Epoxy Bonded FRPs: The State of the Art

Contact Info

Product

Resources

About