Prestressing effects on the ultimate flexural strength of composite box sections

Sayyar, Mohammad; Soroushian, Parviz; Weerasiri, R. R.

doi:10.1016/j.compstruct.2013.07.022

Cited by 4 publications

(6 citation statements)

References 24 publications

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“…In those articles that were likely to contain appropriate content, the article was evaluated in detail to establish compliance with the selection criteria and, if so found, to evaluate the statistical rigor as described in section IID. Of the 82 articles, 26 were found likely to have appropriate content and 17 [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17] were systematically evaluated after being found to meet the selection criteria.…”

Section: Methodsmentioning

confidence: 99%

“…Three authors [1,9,12] provided regressions of their data. Of those, only one [1] reported coefficients and a measure of "goodness of fit" (i.e., R 2 value in this case).…”

Section: Linear Regressionsmentioning

confidence: 99%

“…None reported standard errors or p−value on the fit coefficients. In the judgment of the current authors, nine additional articles [1,6,[8][9][10][11][12][13][14][15][16][17] reported one or more output which could have been evaluated using a linear model (for continuous inputs and outputs). However, the value of those models is subjective and thus the original presentation should not be considered deficient.…”

Section: Linear Regressionsmentioning

confidence: 99%

See 2 more Smart Citations

Lack of statistical rigor in composite materials experimentation and lessons learned from the science of medicine

Gustafson¹,

Jastifery²,

Kapenga

et al. 2014

55th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference

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Section: Methodsmentioning

confidence: 99%

“…Three authors [1,9,12] provided regressions of their data. Of those, only one [1] reported coefficients and a measure of "goodness of fit" (i.e., R 2 value in this case).…”

Section: Linear Regressionsmentioning

confidence: 99%

Section: Linear Regressionsmentioning

confidence: 99%

See 1 more Smart Citation

Lack of statistical rigor in composite materials experimentation and lessons learned from the science of medicine

Gustafson¹,

Jastifery²,

Kapenga

et al. 2014

55th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference

View full text Add to dashboard Cite

“…The effects of shear joints, prestress, and other factors on the flexural capacity, interfacial slip, and crack development of composite beams were obtained. Sayyar et al (2013) studied the variation of the ultimate bending capacity of composite box sections under prestressing effects. The theoretical models of prestressing on the flexural performance of composite materials were established and verified by the flexural test.…”

Section: Introductionmentioning

confidence: 99%

An experimental study on the flexural behavior of local prestressed steel–concrete composite continuous box beams

Zhang

Cao

et al. 2020

Advances in Structural Engineering

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The flexural bearing capacities of three composite continuous box beams with different prestressing degrees were tested and studied to investigate the influences of local prestressing bundles on the deflection, relative slip of interface, strain, and redistribution of the internal force of the steel–concrete composite continuous box beam. Results show that the arrangement of local prestress can not only improve the bending stiffness at the mid-span of the composite continuous box beam, but also significantly enhance the ductility. In the design process of the local prestressed composite continuous box beam, the influence of the slip at the middle support should be fully considered, and the deflection could not be taken as a control factor. The internal force redistribution of the local prestressed continuous box beam is lower than that of the ordinary continuous box beam, but it still has good plastic internal force redistribution. The number of prestressing bundles in the negative moment region is the main factor that affects the internal force redistribution of the middle support.

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“…These studies can be found in various studies. [1][2][3][4][5][6][7][8][9][10][11][12][13][14] Aparicio et al 1 tested externally prestressed monolithic and segmental concrete beams in bending, combined bending and shear. Ashour et al 2 tested 27 reinforced concrete beams to study the effects of steel fibres, longitudinal tensile reinforcement ratios and concrete compressive strengths on the flexural behaviour of reinforced concrete beams.…”

Section: Introductionmentioning

confidence: 99%

Experimental testing of concrete beams with different levels of prestressing

Radnić

Markić

Glibić

et al. 2015

Proceedings of the Institution of Mechanical Engineers, Part L:

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The behaviour of actual prestressed concrete beams under static load up to failure has been experimentally investigated. The experimental testing includes five types of precast concrete beams with different ratios of prestressed and classical reinforcements (only prestressed reinforcement, dominant prestressed reinforcement and classical reinforcement, equal prestressed and classical reinforcements, dominant classical reinforcement and prestressed reinforcement, and only classical reinforcement) i.e. with different levels of prestressing force. Twenty-three beams were tested. The total amount of reinforcement in each beam was selected to provide approximately equal ultimate bending bearing capacity. The deflections, concrete stresses, stresses in classical and prestressed reinforcements and concrete cracks were monitored until the beams collapsed. It was concluded that by increasing the level of prestressing, the serviceability limit state of the beams was improved. The optimal level of prestressing should be selected based on the relevant criteria for each individual structure.

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Prestressing effects on the ultimate flexural strength of composite box sections

Cited by 4 publications

References 24 publications

Lack of statistical rigor in composite materials experimentation and lessons learned from the science of medicine

Lack of statistical rigor in composite materials experimentation and lessons learned from the science of medicine

An experimental study on the flexural behavior of local prestressed steel–concrete composite continuous box beams

Experimental testing of concrete beams with different levels of prestressing

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