Debonding analysis of curved RC beams externally bonded with FRP plates using CZM

Liu, Xingxi; Jiang, Jiaqing; Wang, Guannan; Wang, Jinfeng; Xu, Rongqiao

doi:10.1016/j.engstruct.2019.110103

Cited by 17 publications

(2 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, bonded FRP sheets have no obvious effect on structural stiffness. In the externally bonded FRP sheets method, brittle peeling failure at the interface between FRP sheets and concrete easily occurs, as shown in Figure 4, because of the lack of a good anchoring measure [36,37]. Debonding failure at the interface between FRP sheets and concrete can lower the FRP strength utilization ratio, leading to brittle failure of the structure with a random failure process [38].…”

Section: Introductionmentioning

confidence: 99%

Static Load Test Analysis of T-Beam Bridge Shear Strengthening by Prestressed Steel Wire Rope Embedded in Polyurethane Cement (PSWR-PUC)

Liu

Jian

et al. 2023

Sustainability

View full text Add to dashboard Cite

Many bridges suffer from aging and deterioration problems and need to be strengthened. PSWR-PUC is an emerging structural strengthening technology that enhances the load-bearing capacity of concrete bridges by embedding prestressed steel wire ropes into polyurethane cement. This paper focuses on investigating the shear reinforcement effectiveness of PSWR-PUC. Firstly, the composition of PSWR-PUC is introduced. Subsequently, two T-beam bridges in similar service condition are selected, and shear strengthening schemes involving PSWR-PUC and externally bonded steel plates are devised. Lastly, static loading tests are conducted, and the deflection and strain data of the two bridges before and after reinforcement intervention are analyzed. The results indicate that both strengthening methods improve the bridge load-carrying capacity. However, compared to the bridge strengthened with the externally bonded steel plate method, the deflections in the bridge strengthened with PSWR-PUC decreased by 36.8% and 42.1%, the strains decreased by 18% and 23%, and the shear stiffness was improved to a greater extent. These results verified that the PSWR-PUC strengthening method is effective for improving structural capacity and performance. This study will contribute to an in-depth understanding of the performance characteristics and application scope of PSWR-PUC shear strengthening technology, and it provides a scientific basis and guidance for practical engineering applications.

show abstract

Section: Introductionmentioning

confidence: 99%

Static Load Test Analysis of T-Beam Bridge Shear Strengthening by Prestressed Steel Wire Rope Embedded in Polyurethane Cement (PSWR-PUC)

Liu

Jian

et al. 2023

Sustainability

View full text Add to dashboard Cite

show abstract

“…Numerous researches have been carried out on reinforced FRP concrete, the majority focused on flexure and shear. The use of FRP plates, in particular, could be found in the work of Liu Bocciarelli and Pisani (2017) [4][5][6][7][8][9]. The greater number of these Carbon Fiber Reinforced Polymer (CFRP) plates were attached with epoxy resin to the concrete using the dry lay-up method.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation on the Failure Behavior of Carbon Fiber Reinforced Polymer (CFRP) Strengthened Reinforced Concrete T-beams

Utomo

Khusyeni

Partono

et al. 2021

ced

View full text Add to dashboard Cite

Carbon Fiber Reinforced Polymers (CFRP) are widely used as external concrete reinforcement. The behavior of T-beams strengthened in shear and flexure using CFRP sheets and plates was studied to analyze the load carrying capacity and failure mode as compared to conventional concrete members. The bonding response of the plate-to-concrete was investigated by comparing a specimen with a plate anchored at the far ends, one without anchoring. The sheets were in situ wet lay-up, the plate was pre-impregnated and pultruded during manufacturing. The test result suggested that this integrated strengthening method notably improved the load-carrying capacity, it was also demonstrated that anchoring had a positive but insignificant effect on the moment capacity and deformation. The influence of anchoring was noteworthy from the point of view that it shifted the failure mode from debonding to CFRP plate rupture. The most important factors influencing the behavior of CFRP strengthened beams are outlined.

show abstract

Modeling damage evolution of graphene/aluminum composites considering crystal cracking and interface failure

Liu

Yang

Liu

et al. 2021

Composite Structures

View full text Add to dashboard Cite

Debonding analysis of curved RC beams externally bonded with FRP plates using CZM

Cited by 17 publications

References 43 publications

Static Load Test Analysis of T-Beam Bridge Shear Strengthening by Prestressed Steel Wire Rope Embedded in Polyurethane Cement (PSWR-PUC)

Static Load Test Analysis of T-Beam Bridge Shear Strengthening by Prestressed Steel Wire Rope Embedded in Polyurethane Cement (PSWR-PUC)

Experimental Investigation on the Failure Behavior of Carbon Fiber Reinforced Polymer (CFRP) Strengthened Reinforced Concrete T-beams

Modeling damage evolution of graphene/aluminum composites considering crystal cracking and interface failure

Contact Info

Product

Resources

About