Probabilistic prediction model for RC bond failure mode

Soraghi, Ahmad; Huang, Qindan

doi:10.1016/j.engstruct.2021.111944

Cited by 21 publications

(4 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the other hand, Sajedi and Huang [42] collected in literature results of 240 eccentric pull-out/beam specimens and developed a regression model of bond strength. Later, Soraghi and Huang [39] presented a probabilistic model to predict the failure mode based on bond testing of 132 beam-end specimens subjected to monotonic and cyclic loading.…”

Section: Bond Modelingmentioning

confidence: 99%

Probabilistic assessment of corroded concrete structures – systematic literature review

Moreira,

Bittencourt,

Carvalho

et al. 2024

Rev. IBRACON Estrut. Mater.

View full text Add to dashboard Cite

The evaluation of service conditions of concrete structures has still been carried out through implicit knowledge based on the expertise and knowledge of inspectors, who classify structures based on subjective criteria. The main degradation mechanism of reinforced and prestressed concrete structures is the corrosion of steel reinforcements, with expressive maintenance and repair costs. The phenomenon of corrosion in concrete structures has a complex behavior and presents several uncertainties, and deterministic analyzes can produce very conservative responses, which can unnecessarily increase maintenance costs, thus justifying probabilistic approaches. This article then presents a systematic literature review of articles that address the evaluation of concrete structures under reinforcement corrosion using a probabilistic approach. In this regard, 94 journal articles obtained through an appropriate review protocol were reviewed. Thus, the summary of the main proposed methodologies was carried out, as well as the identification of research gaps on the subject.

show abstract

Section: Bond Modelingmentioning

confidence: 99%

Probabilistic assessment of corroded concrete structures – systematic literature review

Moreira,

Bittencourt,

Carvalho

et al. 2024

Rev. IBRACON Estrut. Mater.

View full text Add to dashboard Cite

show abstract

“…The semi-empirical equations describing model parameters as a function of the beam-column design parameters are used to define the hinges behaviors (Haselton, 2008; Haselton et al, 2016). The simulation of RC beam-column elements can be done by incorporating these relations into the IMK material model, which is able to capture strength and stiffness deterioration (Ibarra et al, 2005) due to local buckling of steel reinforcing bars or bond slip failure (Soraghi et al, 2019; Soraghi and Huang, 2021). This behavior is assigned to the hinges using the modified Ibarra-Medina-Krawinkler deterioration material with the peak-oriented hysteretic response (Lignos and Krawinkler, 2013).…”

Section: D Nonlinear Models Developmentmentioning

confidence: 99%

The effect of vertical near-field ground motions on the collapse risk of high-rise reinforced concrete frame-core wall structures

Taslimi

Tehranizadeh

2021

Advances in Structural Engineering

View full text Add to dashboard Cite

According to the observations of past earthquakes, the vertical ground motions have had a striking influence on the engineering structures, especially reinforced concrete ones. Nevertheless, the number of studies on their aftermath is insufficient, and despite some endeavors done by researchers, there is still a shortage of knowledge about the inclusion of vertical excitation on the seismic performance and the collapse probability of RC buildings. Hence, the variation in the collapse risk of three high-rise RC frame-core wall structures when they undergo bi-directional ground motions is discussed. In this paper, incremental dynamic analyses are carried out under two circumstances, including the horizontal (H) and the combined horizontal and vertical (H+V) earthquakes, and the seismic fragility curves are derived. The inter-story drift ratio corresponding to the onset of collapse has also been defined. The buildings collapse risk under the two circumstances is obtained from the risk integral. Results indicate that in the H+V state, structures meet the collapse criteria for lower intensity measures. Thus, the collapse risk increases as the structures are subjected to bi-directional seismic loads, and the consideration of this effect leads to a more accurate evaluation of buildings seismic performance.

show abstract

“…Experimental studies have previously been carried out on the effect of uniform reinforcement corrosion on the residual load-carrying capacity of corroded concrete beams [3,4,48,[54][55][56][57][58][59]. The mechanical behavior of corroded concrete beams is characterized by a reduction in the bending capacity and a shift in the failure mode [10,[60][61][62][63]. Consequently, the change in failure mode, such as from rebar tensile yielding failure at the earlier corrosion stage or rebar anchorage failure due to insufficient bond strength, must be considered in predicting the residual flexural capacity of the corroded concrete beams [50,54,64,65].…”

Section: Introductionmentioning

confidence: 99%

An Assessment of the Structural Performance of Rebar-Corroded Reinforced Concrete Beam Members

Kim,

Yang,

Noguchi

et al. 2023

Applied Sciences

View full text Add to dashboard Cite

This paper aims to determine the effects of local corrosion at three different corrosion areas, the (1) entire area, (2) the constant moment area, and (3) the constant shear area, on the flexural performance of RC beams. To analyze this, an experimental study was carried out to prepare two series of RC beams (200 × 300 × 2800 mm) created with three different degrees of corrosion, inducing local rebar corrosion. Furthermore, two series of experimental tests were conducted under different loading types: monotonic and cyclic loading. It was observed that the strength capacity reduction grew in the RC specimens with induced corrosion in the order of the (1) entire area > (2) the constant moment area > (3) the constant shear area, as the average corrosion rate increased. Our test results further showed that the yield and ultimate strength were kept nearly equivalent to the uncorroded RC specimen, with average corrosion rates of 10% and 15%, respectively. Over these corrosion rates, the yield strength and ultimate strength dropped significantly. Compared to the test results under a monotonic loading condition, the structural capacity under a cyclic loading condition decreased, with a more pronounced tendency for each corrosion case as the corrosion rate increased. Longitudinal cracks developed throughout and adjacent to the corrosion areas as the corrosion rate increased. Thus, we can infer that strength reductions may be strongly influenced by these longitudinal cracks.

show abstract

Probabilistic prediction model for RC bond failure mode

Cited by 21 publications

References 45 publications

Probabilistic assessment of corroded concrete structures – systematic literature review

Probabilistic assessment of corroded concrete structures – systematic literature review

The effect of vertical near-field ground motions on the collapse risk of high-rise reinforced concrete frame-core wall structures

An Assessment of the Structural Performance of Rebar-Corroded Reinforced Concrete Beam Members

Contact Info

Product

Resources

About