SHEAR STRENGTH OF RC BEAMS WITHOUT STIRRUP USING HIGH-STRENGTH CONCRETE OF COMPRESSIVE STRENGTH RANGING TO 130MPa

Suzuki, Motoyuki; Akiyama, Mitsuyoshi; Wang, Wei Lun; Satô, Masayoshi; Maeda, Naomi; Fujisawa, Yutaka

doi:10.2208/jscej.2003.739_75

Cited by 3 publications

(2 citation statements)

References 12 publications

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“…(3) proposed for RC beams made of normal strength concrete by Niwa et al (1986), Fujita et al (2002) and Suzuki et al (2003) proposed the following empirical equations (4) and (5) for the diagonal cracking strength of reinforced HSC beams, respectively. The applicability of Eq.…”

Section: A New Generalized Equation For Shear Strength At Diagonal Crmentioning

confidence: 99%

“…In almost all of these studies, the shear strength at diagonal cracking is discussed by comparing the experimental results with the calculated results using the design code equations at the time. Recently, design equations for the shear strength of reinforced HSC beams without shear reinforcement formulated mechanically and/or empirically based on test results, have been proposed by Zink (2000), Fujita et al (2002), and Suzuki et al (2003). However, none of these equations are discussed from the point of view of the shrinkage effect.…”

Section: Introductionmentioning

confidence: 99%

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A New Concept for the Early Age Shrinkage Effect on Diagonal Cracking Strength of Reinforced HSC Beams

Satō

Kawakane²

2008

ACT

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The effect of early age shrinkage on the diagonal cracking strength of reinforced high-strength concrete beams is investigated, using thirty two reinforced concrete beams with a distance from the compressive fiber to the centroid of the reinforcing bars (effective depth) of 250 mm, 500 mm and 1000 mm, made of conventional high-shrinkage and low-shrinkage high-strength concretes with a water-to-binder ratio of 0.23. The loading test results show that the shear strength at diagonal cracking of reinforced conventional high-shrinkage high-strength concrete beams is 5% to 18% lower depending on the effective depth compared with that of reinforced low-shrinkage high-strength concrete beams, and the dependence of diagonal cracking strength on the effective depth is apparently different between both. The ultimate shear strength of the former is also 23% to 45% smaller than that of the latter on average. Moreover, a new concept based on the equivalent tension reinforcement ratio for the evaluation of the shrinkage effect on the shear strength at diagonal cracking, consisting of a tension reinforcement ratio modified taking into consideration the effect of the tension reinforcement strain produced by deformation of concrete at early ages, is proposed. This concept shows succesfully the linear relationship between the shear strength at diagonal cracking and the effective depth to -2/5 power independent of the magnitude of the early age deformation of concrete, and a design equation for the shear strength at diagonal cracking applicable to concrete compressive strengths from 90 to 130 N/mm 2 is proposed.

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Section: A New Generalized Equation For Shear Strength At Diagonal Crmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A New Concept for the Early Age Shrinkage Effect on Diagonal Cracking Strength of Reinforced HSC Beams

Satō

Kawakane²

2008

ACT

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Effect of Transverse Reinforcement on Behavior of High Strength Concrete Columns Under Concentric Compression and Its Modeling of Stress-Strain Relationship

Akiyama¹,

Hong²,

Satô³

et al. 2004

Doboku Gakkai Ronbunshu

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Evaluation of Shrinkage Effects on Diagonal Cracking Strength of Reinforced HSC Beams

Kawakane¹,

Satō²

2009

JSCE JOURNAL OF MATERIALS, CONCRETE STRUCTURES AND PAVEMENTS

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SHEAR STRENGTH OF RC BEAMS WITHOUT STIRRUP USING HIGH-STRENGTH CONCRETE OF COMPRESSIVE STRENGTH RANGING TO 130MPa

Cited by 3 publications

References 12 publications

A New Concept for the Early Age Shrinkage Effect on Diagonal Cracking Strength of Reinforced HSC Beams

A New Concept for the Early Age Shrinkage Effect on Diagonal Cracking Strength of Reinforced HSC Beams

Effect of Transverse Reinforcement on Behavior of High Strength Concrete Columns Under Concentric Compression and Its Modeling of Stress-Strain Relationship

Evaluation of Shrinkage Effects on Diagonal Cracking Strength of Reinforced HSC Beams

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