Modeling of size effect on compressive behavior of CFRP-confined rectangular RC columns: Influence of corner radius and aspect ratio

Fan, Lingling; Liu, Jin; Du, Xiuli

doi:10.1016/j.compstruct.2022.116400

Cited by 14 publications

(3 citation statements)

References 78 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The confinement of jacketing material is less effective in square and rectangular column compared to circular column due to non-uniform axial compressive stress distribution exist in non-circular column. This is caused by the arching phenomena which is critically influenced by the arch height and the arch height is directly proportional to the aspect ratio [25].…”

Section: The Effect Of Column Aspect Ratiomentioning

confidence: 99%

See 1 more Smart Citation

The Effect of Cross Sectional Properties of Concrete Column on the Repair Material: A Review

Ali,

Zahid,

Razak

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

The utilization of Ultra High Performance Fibre Reinforced Concrete (UHPFRC) as a material for repairing concrete structures holds immense promise and potential. UHPFRC usage in concrete has been a significant rise in the interest surrounding the enhancement and renovation of concrete structures, particularly focusing on columns. UHPFRC has showcased remarkable bonding potency with concrete, along with an impressive capacity to renew the load-bearing capability of compromised reinforced concrete columns. However, the limited application of UHPRFC as a repair material for concrete columns is primarily attributable to a lack of comprehension regarding the influence of shape and size effects, particularly as they pertain to square and rectangular columns. In this paper, the factors behind the impact of cross-sectional properties on the effectiveness of UHPFRC as a repair material is presented. Therefore, it can be adopted by researchers to explore the UHPFRC potential in structural rehabilitation applications especially for concrete columns. It is believed that the relationship between the cross-sectional area, aspect ratio, and corner radius ratio of the column and repair material is a vital parameter affecting the performance of repaired columns.

show abstract

Section: The Effect Of Column Aspect Ratiomentioning

confidence: 99%

“…The increase of the stiffness of the FRP by applying double or triple plies can improve the load carrying capacity of the FRP wrapped column but the effect of aspect ratio remains unchanged [27]. However, the increase of aspect ratio shall reduce the effect of size and edge sharpness [25].…”

Section: The Effect Of Column Aspect Ratiomentioning

confidence: 99%

The Effect of Cross Sectional Properties of Concrete Column on the Repair Material: A Review

Ali,

Zahid,

Razak

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

show abstract

“…The results demonstrated that the flexural capabilities were diminished in direct proportion to the amount of torsional force applied and the concrete strut’s capacity and torsional shear-flow are improved by the CFRP wraps, which are also compatible with the imposed load ratios and the specified truss mechanism. Additionally, rectangular reinforced concrete (RC) columns with carbon fiber-reinforced plastic (FRP) confinement were modelled in three dimensions using a meso-scale approach that takes concrete variability into account by Fan et al [ 10 ]. There was a size effect on the confinement of CFRP jackets on concrete, as measured by a decrease in the effective confinement area ratio estimated from the axial stress distribution as the structure size increased.…”

Section: Introductionmentioning

confidence: 99%

Limited Optimal Plastic Behavior of RC Beams Strengthened by Carbon Fiber Polymers Using Reliability-Based Design

Ibrahim

Rad

2023

Polymers

View full text Add to dashboard Cite

The plastic behavior of strengthened haunched beams utilizing carbon fiber-reinforced polymers (CFRP) was investigated using a probabilistic design that took into account random concrete properties, CFRP properties, and complementary strain energy values, with the reliability index serving as a limiting index, as the proposed method considers a novel method that deals with probabilistic parameters for models with limited plastic behavior designed based on the reliability index. The data used in this research were gathered and evaluated in a recent study on simply supported haunched beams reinforced with carbon fiber-reinforced polymers. The purpose of this research was to use the reliability limitation index for simulated strengthened haunched beams by taking into account randomness in concrete and CFRP properties and the complementary strain energy value, which is considered a plastic behavior controller that provides an illustration of the damage amount within the reinforcement steel bars. The results indicate how randomness affects the behavior of the presented models, which are chosen to have different numbers of CFRP strips. The variable randomness affects load and deflection values where the reliability index value increases as the corresponding load value decrease, reflecting the increased probability of failure in models subjected to higher loading conditions, while tension concrete damage percentages are reflected in the damage pattern presented in the results, showing that as the produced load increases, so does the damage intensity. It is also obvious that the reliability index served as a limitation index while taking concrete characteristics and complementary strain energy as random variables.

show abstract

A versatile model with a design framework for axially-loaded FRP-confined concrete with/without a stress reduction-recovery behavior

Shayanfar,

Barros,

Pereira

2024

Construction and Building Materials

View full text Add to dashboard Cite

Modeling of size effect on compressive behavior of CFRP-confined rectangular RC columns: Influence of corner radius and aspect ratio

Cited by 14 publications

References 78 publications

The Effect of Cross Sectional Properties of Concrete Column on the Repair Material: A Review

The Effect of Cross Sectional Properties of Concrete Column on the Repair Material: A Review

Limited Optimal Plastic Behavior of RC Beams Strengthened by Carbon Fiber Polymers Using Reliability-Based Design

A versatile model with a design framework for axially-loaded FRP-confined concrete with/without a stress reduction-recovery behavior

Contact Info

Product

Resources

About