Stress-Strain Model for Confined Reinforced Concrete in Bridge Piers

Hoshikuma, Jun-ichi; Kawashima, Koichiro; Nagaya, Kazuhiro; Taylor, Andrew

doi:10.1061/(asce)0733-9445(1997)123:5(624)

Cited by 290 publications

(101 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The proposed model for predicting the stress-strain relationship combines Tabsh [18], Mander [2], and Hoshikusuma [19] models. The analytical model of confining stress of external steel collars through combined bending and axial actions is adopted from Xiao and Wu [15].…”

Section: Proposed Analytical Modelmentioning

confidence: 99%

“…Commonly, confining stress in columns is provided by conventional transverse reinforcement (stirrups). Up to present, many experimental and analytical studies have been conducted to investigate the effects of confinement [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. These studies covered circular and square column sections.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Compressive Strength Prediction of Square Concrete Columns Retrofitted with External Steel Collars

Pudjisuryadi¹,

Tavio²

2013

ced

View full text Add to dashboard Cite

Transverse confining stress in concrete members, commonly provided by transverse reinforcement, has been recognized to enhance strength and ductility. Nowadays, the confining method has been further developed to external confinement approach. This type of confinement can be used for retrofitting existing concrete columns. Many external confining techniques have been proven to be successful in retrofitting circular columns. However, for square or rectangular columns, providing effective confining stress by external retrofitting method is not a simple task due to high stress concentration at column's corners. This paper proposes an analytical model to predict the peak strength of square concrete columns confined by external steel collars. Comparison with the experimental results showed that the model can predict the peak strength reasonably well. However, it should be noted that relatively larger amount of steel is needed to achieve comparable column strength enhancement when it is compared with those of conventional internally-confined columns.

show abstract

Section: Proposed Analytical Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Compressive Strength Prediction of Square Concrete Columns Retrofitted with External Steel Collars

Pudjisuryadi¹,

Tavio²

2013

ced

View full text Add to dashboard Cite

show abstract

“…The piers are idealized by fiber elements at their plastic hinge regions. The lateral confinement of concrete including unloading and reloading paths was idealized by Hoshikuma et al 16) and Sakai and Kawashima 17) models. The piers section outside of the plastic hinge zone and the lateral beams were idealized by elastic beam elements.…”

Section: Idealization Of a Target Bridgementioning

confidence: 99%

Effect of Finger Expansion Joints on Seismic Response of Bridges

QUAN

Kawashima

2010

Structural Eng./Earthquake Eng.

View full text Add to dashboard Cite

This paper presents the effect of steel finger-type expansion joints on the overall seismic response of a bridge. For this purpose, two nonlinear hysteretic models are developed for finger expansion joints. Complex interaction of longitudinal and transverse hysteretic behavior such as slip-out, collision, and failure of fingers is included in the models. The models are implemented to seismic response analysis of a three-span simply supported bridge. It is found from the analysis that the effect of expansion joints is significant in the plastic curvature of columns at their plastic hinge and the response displacement and residual displacement of decks and columns.

show abstract

“…, (5) , Sheikh and Uzumeri (6), (7) , Mander (8), (9) , Saatcioglu-Razvi (10) , 그리고 Hoshikuma (11) 등에 의해서 제 안되었다. 저자들은 앞선 논문 (12) 을 …”

Section: ) 정회원･울산대학교 건설환경공학부 박사수료(대표저자)unclassified

Characteristics of the Stress-strain Relationship of Square Sectional Concrete Confined by Hoop Reinforcement with Cross-ties

정혁창¹,

차수원²,

김익현³

2010

Journal of the Earthquake Engineering Society of Korea

View full text Add to dashboard Cite

>> Improved seismic performances of RC bridges can be attained by sufficient ductilities of piers, which can be obtained by providing sufficient lateral confinements to the plastic hinge regions of piers. The cross sectional shape and the amount of lateral reinforcements are key parameters in the determination of effective confinements. Even though identical amounts of lateral reinforcement are provided, the effective confinement differs due to different spacing, arrangements, hook details and so on. Unlike circular sections in which confinement is exerted by mere hoop reinforcements, cross-ties are arranged in square or rectangular sections to enhance the effective confinements. The stress-strain relationship of confined concrete is varied by how to consider these cross-ties. In this study, the stress-strain relationships of confined concrete with cross-ties are investigated experimentally and their mechanical characteristics are estimated by comparison with other empirical equations.

show abstract

Stress-Strain Model for Confined Reinforced Concrete in Bridge Piers

Cited by 290 publications

References 8 publications

Compressive Strength Prediction of Square Concrete Columns Retrofitted with External Steel Collars

Compressive Strength Prediction of Square Concrete Columns Retrofitted with External Steel Collars

Effect of Finger Expansion Joints on Seismic Response of Bridges

Characteristics of the Stress-strain Relationship of Square Sectional Concrete Confined by Hoop Reinforcement with Cross-ties

Contact Info

Product

Resources

About