Seismic performance of RC columns retrofitted by CFRP wrapping ‘Study of the influencing parameters’

Gahmousse, Zakaria; Djebbar, Mohamed-Said; Djebbar, Nabil

doi:10.1007/s42107-021-00354-3

Cited by 4 publications

(2 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The simulation and control of the seismic damage states of the specimens were mainly achieved by pre-damage treatment. The damage caused by the earthquake was simulated by loading the specimen repeatedly at low circumference [26]. Based on the test of specimen loading, results, and previous research [27], the specimen damage levels and the corresponding macroscopic test phenomena were summarized (Table 6).…”

Section: Seismic Damage Control and Specimen Strengtheningmentioning

confidence: 99%

Experimental Study on Seismic Performance of CFRP-Strengthened Recycled Concrete Columns with Different Levels of Seismic Damage

Song,

Tian,

Zhao

et al. 2023

Buildings

View full text Add to dashboard Cite

To study the strengthening effect of carbon fiber composite materials (CFRP) on recycled concrete columns subjected to different levels of seismic damage, four column specimens were designed for pseudo-static tests. The four specimens were categorized as non-destructive without strengthening (prototype), non-destructive strengthening, medium seismic damage strengthening, and severe seismic damage strengthening based on the replacement rate of recycled aggregates and the level of seismic damage. The characteristics of the deformation damage and seismic performance indicators of each specimen were compared and analyzed. The results were verified on the OpenSees platform. A decrease was observed in the initial stiffness of the seismically damaged recycled concrete column specimens strengthened with CFRP, while the ductility, peak bearing capacity, and energy dissipation capacity of the specimens were improved. In addition, with the reduction in seismic damage, the ductility and energy dissipation capacity of the strengthened seismically damaged recycled concrete column specimens were enhanced to different degrees. In particular, the cumulative energy dissipation of the strengthened specimens exposed to medium seismic damage increased most significantly, by 32.5%. In general, the hysteretic curves of the strengthened specimens were full, and the average ductility coefficients were 4.1–6.8. CFRP strengthening was more effective for restoring and enhancing the performance of the recycled concrete column specimens with medium and lower seismic damage levels (displacement ratio ≤ 3%).

show abstract

Section: Seismic Damage Control and Specimen Strengtheningmentioning

confidence: 99%

Experimental Study on Seismic Performance of CFRP-Strengthened Recycled Concrete Columns with Different Levels of Seismic Damage

Song,

Tian,

Zhao

et al. 2023

Buildings

View full text Add to dashboard Cite

show abstract

“…When columns exposed to earthquake effects are wrapped with fiber reinforced polymer, although there is no significant increase in lateral rigidity and lateral load capacity, there is an improvement in displacement capacities [6]. In recent years, many studies have been carried out on the methods of full carbon fiber reinforced polymer cladding on reinforced concrete columns and carbon fiber reinforced polymer cladding by partial wrapping [7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Effect of Wrapping Thickness and Type on Reinforced Bridge Piers: A Numerical Study

Gürbüz,

Ustabaş,

Kurt

et al. 2024

Period. Polytech. Civil Eng.

View full text Add to dashboard Cite

This research paper investigates the impact of wrapping thickness and type on reinforced bridge piers through a numerical study. The Incesu bridge, located in the Ardanuç district of Artvin province, was selected as the case study, as it was completed with low concrete strength. Initially, the bridge was examined, revealing that the piers were inadequate against dynamic, dead, pedestrian, and covering loads. The study concentrated on employing carbon fiber reinforced polymer to reinforce the bridge piers. Various models were wrapped with carbon fiber reinforced polymer in full-length, half-length, and one-meter intervals. In the analysis, it is assumed that the wraps are linked to each other in both principal directions and not detached from one another. Along with the analyses conducted, stress and strain values are presented separately. It was observed that the wrapping effect obtained in small-sized elements in literature could not be obtained in large-sized elements. As the concrete quality improves, the influence of wrapping thickness diminishes. Moreover, the effects of full-length and half-length wrapping are very close to each other, suggesting that half-length wrapping of bridge piers is sufficient. The authors believe that the obtained analysis results will prove beneficial in achieving economic advantages in retrofitting projects within the construction sector.

show abstract

Numerical studies on the seismic behavior of reinforced concrete structures Strengthened with CFRP

Bensaid,

Tbatou

2024

J Build Rehabil

View full text Add to dashboard Cite

Seismic performance of RC columns retrofitted by CFRP wrapping ‘Study of the influencing parameters’

Cited by 4 publications

References 21 publications

Experimental Study on Seismic Performance of CFRP-Strengthened Recycled Concrete Columns with Different Levels of Seismic Damage

Experimental Study on Seismic Performance of CFRP-Strengthened Recycled Concrete Columns with Different Levels of Seismic Damage

Effect of Wrapping Thickness and Type on Reinforced Bridge Piers: A Numerical Study

Numerical studies on the seismic behavior of reinforced concrete structures Strengthened with CFRP

Contact Info

Product

Resources

About