New Approach for Modeling Confined Concrete. I: Circular Columns

Assa, Beni; Nishiyama, Minehiro; Watanabe, Fumio

doi:10.1061/(asce)0733-9445(2001)127:7(743)

Cited by 62 publications

(26 citation statements)

References 7 publications

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“…Each model had various limitations. Since limited models available for fiber reinforced concrete, therefore, this investigation used both of fiber reinforced concrete [11,12] and no fiber concrete confinement [1][2][3][4][5] model. The aim is about examining the capabilities of the various models from the literature to predict the actual experimental behavior of synthetic fiber reinforced high-strength concrete columns.…”

Section: Confinement Modelsmentioning

confidence: 99%

“…Table 1 illustrates those models. Razvi [2] Silva [3] Assa [4] Li [5] Mansur [11] Campione [12] Cusson [1] developed a confinement model which consists of two-part of stress-strain relationship for ascending and descending formula. This model was formulated based on the experimental study on 50 large-scale, under concentric loading of the concrete compressive strength of the specimens ranged from 60 to 120 MPa, while the ties used yield strength from 400 to 800 MPa.…”

Section: Confinement Modelsmentioning

confidence: 99%

“…Assa [4] proposed confinement model based on 22 150 x 300 mm concrete cylinders which were tested under monotonic concentric compression with 20 to 90 MPa of the strength of concrete. The stress-strain behavior of concrete confined determined by the several types of reinforcement configurations.…”

Section: Confinement Modelsmentioning

confidence: 99%

“…Many empirical models of compression stress-strain relationship of normal and high strength concrete have been generated by many researchers [1][2][3][4][5]. However, those of models have limitation to fiber reinforced concrete, especially for synthetic fiber reinforced concrete (SNFRC).…”

Section: Introductionmentioning

confidence: 99%

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Stress-Strain Relationship of Synthetic Fiber Reinforced Concrete Columns

2017

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Abstract. Many empirical confinement models for normal and high strength concrete have been developed. Nevertheless, reported studies in the term of confinement of fiber reinforced concrete are limited. Whereas, the use of fiber reinforced concrete in structural elements has become the subject of the research and has indicated positive experiences. Since the stress-strain relationship of concrete in compression is required for analysis of structural members, the study of the stress-strain relationship for synthetic fiber reinforced concrete is substantial. The aim of the study is to examine the capabilities of the various models available in the literature to predict the actual experimental behavior of synthetic fiber reinforced highstrength concrete columns. The experimental data used are the results of the circular column specimens with the spiral spacing and the volume fraction of synthetic fiber as the test variables. The axial stress-strain curves from the tests are then compared with the various models of confinement from the literature. The performance index of each model is measured by using the coefficient of variation (COV) concept of stress and strain behavior parameter. Among the confinement models, Cusson model shows the closest valid value of the coefficient of variation.

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Section: Confinement Modelsmentioning

confidence: 99%

Section: Confinement Modelsmentioning

confidence: 99%

Section: Confinement Modelsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Stress-Strain Relationship of Synthetic Fiber Reinforced Concrete Columns

2017

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“…(11)- (14) was applied in several numerical examples [without axial stress, i.e., q = 0 in Eq. (13)] with different numbers of (pairs of) bands for various locations (z 1 ) along the longitudinal axis and of spacing and band widths (s 1 and b 1 ) [9]. It was found that the influence on the stresses of more than 5 pairs of lateral bands (i.e., 2n = 10 in the above equations) is small.…”

Section: Active Confinementmentioning

confidence: 99%

Confinement effectiveness in circular concrete columns

Eid¹,

Dancygier²

2006

Engineering Structures

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Estimation of compressive strength of stirrup‐confined circular columns using artificial neural networks

Chang

Zheng

2019

Structural Concrete

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In concrete structures design, the compressive strength of circular concrete columns confined by spiral stirrups is an important mechanical property in evaluating the performance of concrete structures. However, evaluating the compressive strength of confined concrete columns is rich in challenge due to the complex mechanics between the concrete and the transverse reinforcements. The objective of this paper is to establish an artificial neural network (ANN) model to evaluate the compressive strength of concrete columns confined by transverse reinforcements. The model proposed in this study is suitable for both normal-strength and high-strength concrete columns, covering concrete strengths were in the range of 19.1-151 MPa. Three main influential parameters, including the tensile yield strength and the volumetric ratio of the transverse reinforcements, as well as the concrete strength, were applied as input variables to the model. The ANN model was trained and tested by a reliable database consisting of 240 data sets obtained from authors and published literature. The proposed ANN model used to predict the compressive strength of circular concrete columns confined by spiral stirrup had high applicability and reliability compared with existing analytical models.

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New Approach for Modeling Confined Concrete. I: Circular Columns

Cited by 62 publications

References 7 publications

Stress-Strain Relationship of Synthetic Fiber Reinforced Concrete Columns

Stress-Strain Relationship of Synthetic Fiber Reinforced Concrete Columns

Confinement effectiveness in circular concrete columns

Estimation of compressive strength of stirrup‐confined circular columns using artificial neural networks

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