Comparison of main models for size effect on shear strength of reinforced and prestressed concrete beams

Qiang Yu; Jia Liang Le; Mija H. Hubler; Roman Wendner; Gianluca Cusatis; Zdeněk P. Bažant

doi:10.1002/suco.201500126

Comparison of main models for size effect on shear strength of reinforced and prestressed concrete beams

Qiang Yu, Jia Liang Le, Mija H. Hubler, Roman Wendner, Gianluca Cusatis, Zdeněk P. Bažant^*

^*Corresponding author for this work

Civil and Environmental Engineering

Research output: Contribution to journal › Article › peer-review

39 Scopus citations

Abstract

This paper presents a critical comparison of the existing code provisions for the shear strength of concrete beams. The comparison is based on the computerized filtering-out of the inevitable statistical bias from the available multivariate database on shear strength, on an examination of the predicted size effects on shear strength and their underlying hypotheses and on the results of recent high-fidelity numerical simulations of shear failure. In addition to examining the existing models, the present comparison also provides several key considerations for testing the scientific soundness of any model of shear failure in concrete beams, which is necessary for future revisions to the design code provisions.

Original language	English (US)
Pages (from-to)	778-789
Number of pages	12
Journal	Structural Concrete
Volume	17
Issue number	5
DOIs	https://doi.org/10.1002/suco.201500126
State	Published - Dec 1 2016

Keywords

fracture energy
multivariate database
reinforced concrete
shear strength
size effect

ASJC Scopus subject areas

Civil and Structural Engineering
Building and Construction
Materials Science(all)
Mechanics of Materials

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10.1002/suco.201500126

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title = "Comparison of main models for size effect on shear strength of reinforced and prestressed concrete beams",

abstract = "This paper presents a critical comparison of the existing code provisions for the shear strength of concrete beams. The comparison is based on the computerized filtering-out of the inevitable statistical bias from the available multivariate database on shear strength, on an examination of the predicted size effects on shear strength and their underlying hypotheses and on the results of recent high-fidelity numerical simulations of shear failure. In addition to examining the existing models, the present comparison also provides several key considerations for testing the scientific soundness of any model of shear failure in concrete beams, which is necessary for future revisions to the design code provisions.",

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AU - Yu, Qiang

AU - Le, Jia Liang

AU - Hubler, Mija H.

AU - Wendner, Roman

AU - Cusatis, Gianluca

AU - Bažant, Zdeněk P.

PY - 2016/12/1

Y1 - 2016/12/1

N2 - This paper presents a critical comparison of the existing code provisions for the shear strength of concrete beams. The comparison is based on the computerized filtering-out of the inevitable statistical bias from the available multivariate database on shear strength, on an examination of the predicted size effects on shear strength and their underlying hypotheses and on the results of recent high-fidelity numerical simulations of shear failure. In addition to examining the existing models, the present comparison also provides several key considerations for testing the scientific soundness of any model of shear failure in concrete beams, which is necessary for future revisions to the design code provisions.

AB - This paper presents a critical comparison of the existing code provisions for the shear strength of concrete beams. The comparison is based on the computerized filtering-out of the inevitable statistical bias from the available multivariate database on shear strength, on an examination of the predicted size effects on shear strength and their underlying hypotheses and on the results of recent high-fidelity numerical simulations of shear failure. In addition to examining the existing models, the present comparison also provides several key considerations for testing the scientific soundness of any model of shear failure in concrete beams, which is necessary for future revisions to the design code provisions.

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KW - multivariate database

KW - reinforced concrete

KW - shear strength

KW - size effect

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Comparison of main models for size effect on shear strength of reinforced and prestressed concrete beams

Abstract

Keywords

ASJC Scopus subject areas

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