Estimating the relationship between tension reinforcement and ductility of reinforced concrete beam sections

Lee, Tai-Kuang; Pan, Austin D.E.

doi:10.1016/s0141-0296(03)00048-8

Cited by 31 publications

(26 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…From this investigation, it was also observed that a higher tension reinforcement ratio results in less ductile behavior. This is in agreement with the work of other researchers (Lee and Pan 2003;Rashid and Mansur 2005). …”

Section: Ductility Behavioursupporting

confidence: 94%

Flexural Behaviour of Reinforced Lightweight Concrete Beams Made with Oil Palm Shell (OPS)

Teo

Mannan

Kurian

2006

ACT

135

View full text Add to dashboard Cite

This paper presents an investigation on the flexural behaviour of reinforced concrete beams produced from oil palm shell (OPS) aggregates. Utilising OPS in concrete production not only solves the problem of disposing this solid waste but also helps conserve natural resources. A total of 6 under-reinforced beams with varying reinforcement ratios (0.52% to 3.90%) were fabricated and tested. Data presented include the deflection characteristics, cracking behaviour, ductility indices and end-rotations. The investigation revealed that the flexural behaviour of reinforced OPS concrete beams was comparable to that of other lightweight concretes and the experimental results compare reasonably well with the current Codes of Practice. It was observed that beams with low reinforcement ratios satisfied all the serviceability requirements as per BS 8110.

show abstract

Section: Ductility Behavioursupporting

confidence: 94%

Flexural Behaviour of Reinforced Lightweight Concrete Beams Made with Oil Palm Shell (OPS)

Teo

Mannan

Kurian

2006

ACT

135

View full text Add to dashboard Cite

show abstract

“…The ability of curvature ductility for singly reinforced sections is influenced by some factors such as the tensile reinforcement ratio, the compressive strength of concrete and yield strength of reinforcement, but the most important one is the tensile reinforcement ratio. Many researches have been conducted for studying the curvature ductility of RC sections (Ho et al 2003(Ho et al , 2004Lee and Pan 2003;Pam et al 2001aPam et al , 2001bKwan et al 2002). …”

Section: Curvature Ductility Factormentioning

confidence: 99%

“…According to Lee and Pan (2003), it is possible to devise a simple equation for the relationship between the curvature ductility and the tensile reinforcement ratio. The following equation has been suggested:…”

Section: Curvature Ductility Factormentioning

confidence: 99%

Curvature Ductility Prediction of Reinforced High‐strength Concrete Beam Sections

Arslan

Cihanli

2010

Journal of Civil Engineering and Management

View full text Add to dashboard Cite

Abstract. The ductility of reinforced concrete beams is very important, since it is essential to avoid a brittle failure of the structure by ensuring adequate curvature at the ultimate limit state. One of the procedures used to quantify ductility is based on curvatures, namely, curvature ductility. It is necessary to know the curvature ductility of singly reinforced highstrength concrete (HSC) sections for determining a maximum permissible tensile reinforcement ratio or a maximum depth of the concrete compression area in design codes. The requirements of several codes and methods of prediction of the curvature ductility are based on the experimental results of normal strength concrete (NSC). The rules derived for NSC sections may not be appropriate for HSC sections, and verifications and modifications may be required for the evaluation of curvature ductility of HSC sections. In this study, the major factors affecting the curvature ductility of a singly reinforced HSC beam section are investigated. Based on numerical analyses, a parametric study has been carried out to evaluate the effects of various structural parameters on the curvature ductility of reinforced HSC beam sections.

show abstract

“…There are several parameters interacting each other that influence the ductility at ultimate limit states. Moreover, it is impossible to dissociates ductility from rigidity of a RC element because they are function of almost the same parameters as: longitudinal reinforcement ratio, concrete strength, concrete softening branch in compression, crack pattern development, tension stiffening, bond-slip relationship (Lee and Pan 2003;Oehlers et al 2009;Lopes et al 2012). The curvature depends on the material strain levels and their limits.…”

mentioning

confidence: 99%

“…In the context of the absence of explicit quantification methods for ductility, Lee and Pan (2003) proposed an algorithm based on simplified analytical equations to RC beams designing considering that ductility factor as an input data. In their approach, the authors considered the Kent and Park's (1971) analytical model for concrete in compression to take into account the confinement effect caused by the transversal reinforcement.…”

mentioning

confidence: 99%

Ductility Analysis of RC Beams Considering the Concrete Confinement Effect Produced by the Shear Reinforcement: a Numerical Approach

Nogueira

Rodrigues

2017

Lat. Am. j. solids struct.

View full text Add to dashboard Cite

In this paper, a simplified numerical approach to study the influence of the confinement effect provided by transversal reinforcement on the ductility behavior of RC beams in bending is proposed. A unidimensional FEM mechanical model coupled to the Mazars' damage model to simulate concrete behavior was adopted to assess ductility curvatures at the ultimate limit state. The confinement effect was incorporated to the numerical model through a calibration process of the damage internal parameters, based on the Least Square Method and an analytical law proposed by Kent and Park (1971). Several numerical analyses were carried out considering different designs of RC beams according to a parametric study varying the neutral axis position, concrete compressive strength and the volumetric transversal reinforcement ratio. The obtained results showed the importance of the amount of transversal reinforcement on the ductility behavior, increasing the ductility factor even for the cases with inappropriate neutral axis position.

show abstract

Estimating the relationship between tension reinforcement and ductility of reinforced concrete beam sections

Cited by 31 publications

References 1 publication

Flexural Behaviour of Reinforced Lightweight Concrete Beams Made with Oil Palm Shell (OPS)

Flexural Behaviour of Reinforced Lightweight Concrete Beams Made with Oil Palm Shell (OPS)

Curvature Ductility Prediction of Reinforced High‐strength Concrete Beam Sections

Ductility Analysis of RC Beams Considering the Concrete Confinement Effect Produced by the Shear Reinforcement: a Numerical Approach

Contact Info

Product

Resources

About