Probabilistic Model for Rebar-Concrete Bond Failure Mode Prediction Considering Corrosion

Soraghi, Ahmad; Huang, Qindan; Hauff, Derek A. J.

doi:10.1061/9780784482247.033

Cited by 6 publications

(2 citation statements)

References 13 publications

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“…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

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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.

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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

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“…Karimipour and Farhangi used a noble grooving methods such as EBR and EBROG on improving the performance of structures using GFRP materials [ 11 ]. Soraghi et al [ 12 ] analyzied the bond response between the concrete and rebar against corrosion. Farhangi and Karakouzian reviewed the applications of the recycled material and GFRP on improving the structural resistance of structures [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Study of Adhesively and Bolted Connections of Pultruded GFRP I-Shape Profiles

2022

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Recent developments indicate that the application of pultruded FRP profiles has been continuously growing in the construction industry. Generating more complex structures composed of pultruded FRP profiles requires joining them. In particular, I-shape glass fiber pultruded profiles are commonly used and the possible joints to connect them should be specifically studied. The mechanical behavior of adhesively and bolted joints for pultruded Glass FRP (GFRP) profiles has been experimentally addressed and numerically modeled. A total of nine specimens with different configurations (bolted joints, adhesive joints, web joints, web and flange joints, and two different angles between profiles) were fabricated and tested, extending the available published information. The novelty of the research is in the direct comparison of joint technologies (bolted vs. adhesive), joint configuration (web vs. flange + web) and angles between profiles in a comprehensive way. Plates for flange joints were fabricated with carbon fiber FRP. Experimental results indicate that adding the bolted flange connection allowed for a slight increase of the load bearing capacity (up to 15%) but a significant increase in the stiffness (between 2 and 7 times). Hence, it is concluded that using carbon FRP bolted flange connection should be considered when increasing the joint stiffness is sought. Adhesively connections only reached 25% of the expected shear strength according to the adhesive producer if comparing the numerically calculated shear strength at the failure time with the shear strength capacity of the adhesive. Apart from assessing adhesive connections, the implemented 3D numerical model was aimed at providing a simplified effective tool to effectively design bolted joints. Although the accurate fitting between experimental and numerical results of the mechanical response, especially the stiffness of the joint, the local failure experimentally observed was not automatically represented by the model, because of the simplified definition of the materials oriented to make the model available for a wide range of practitioners.

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Effect of bar yielding and heat on bond behavior between steel bar and high-strength concrete containing waste PET by pullout and beam tests: Experiments and predictions

Arjomandi

Nematzadeh

Fakoor

2023

Construction and Building Materials

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Probabilistic Model for Rebar-Concrete Bond Failure Mode Prediction Considering Corrosion

Cited by 6 publications

References 13 publications

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

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

Experimental and Numerical Study of Adhesively and Bolted Connections of Pultruded GFRP I-Shape Profiles

Effect of bar yielding and heat on bond behavior between steel bar and high-strength concrete containing waste PET by pullout and beam tests: Experiments and predictions

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