Prestressed Concrete Box Girder Bridges With Folded Steel Plate Webs.

Rosignoli, Marco

doi:10.1680/istbu.1999.31255

Cited by 46 publications

(6 citation statements)

References 3 publications

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“…As the effect of shear slip between the concrete slab and corrugated steel web is negligible, it is assumed that the 1. cross section of the composite girder is uniform [27]. The vibration displacement of the composite girder is minimal, so the curvature of the girder can be rationally 2.…”

Section: Analysis Model and Basic Assumptionsmentioning

confidence: 99%

Theoretical and Experimental Study on Natural Frequency of Externally Prestressed Box-Girder with Corrugated Steel Webs

Liu¹,

Xu²,

Li³

et al. 2016

TOCIEJ

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Based on the characteristics of box girder with corrugated steel webs, the existing prestressing force, the effect of shear deformation of composite girder on the deflection, “folding effect” in longitudinal direction of corrugate steel webs and the arrangement of external tendons were considered comprehensively. With the experiment results of five literatures integrated,N/fcA(the axial compression ratio) was selected as regression parameter to develop a regression equation for the effective cross-section stiffness of the girder. Then a formula for natural frequency of the externally prestressed box girder with corrugated steel webs was proposed. Finally, thein-situmeasurement on an actual bridge and a laboratory dynamic test on the model box girder with seven prestressing levels were conducted. The test results showed that the natural frequency of box girders with corrugated steel webs increased along with the growing external force. In contrast to other related formulas, the calculated results of the formula proposed in this paper showed the same tendency with measured results and the maximum error is 1%.

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Section: Analysis Model and Basic Assumptionsmentioning

confidence: 99%

Theoretical and Experimental Study on Natural Frequency of Externally Prestressed Box-Girder with Corrugated Steel Webs

Liu¹,

Xu²,

Li³

et al. 2016

TOCIEJ

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“…The CSWs carry the majority of the shear forces in section. Speci cally, CSWs carry about 65% of the shear force in section, but the ratio of shear force decreases with the yielding of the CSWs (Rosignoli 1999). A formula for predicting the shear strength considering the material yield strength and the local and overall shear buckling strength was proposed by investigating the damage modes of CSWs (Sayed-Ahmed 2007).…”

Section: Introductionmentioning

confidence: 99%

Shear Performance of Tapered Beams with Corrugated Steel Webs with Consideration of Positive and Negative Resal Effects

Shen

Wang

Zhou

et al. 2022

Preprint

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This paper theoretically and numerically studies the difference of shear performance between tapered and uniform beams with corrugated steel webs (CSWs) and investigates the influence of Resal effect on the shear performance of tapered beams with CSWs. Free Body Cut in ABAQUS was defined to study the shear sharing proportions between CSWs and concrete slabs, it was found to be different when compared with the uniform beams with CSWs, the sloping bottom slabs in the tapered cases would involve in resisting the shear force on the section. The existence of the Resal effect in the non-uniform members may either increase or decrease the shear-bearing ratio of the CSWs. Based on its favorable and unfavorable influences on the tapered CSWs' shear properties, the concept of positive and negative Resal effects is proposed for the first time in this study, and on this basis, the improved shear method considering the positive and negative Resal effects is proposed to obtain the actual shear forces of the tapered CSWs. Additionally, the factors contributed to the positive and negative Resal effects and the mechanisms of the Resal effect on adjusting the proportion of shear forces between bottom slab and CSWs were also investigated. In this study, the Resal effects in different kinds of tapered beams with CSWs (regular tapered beam and reverse tapered beam) under different internal force combinations are discussed by using finite element (FE) models and theoretical analysis, and the correctness of the improved shear method is confirmed by contrasting the FE results.

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“…Since being constructed in the late 1980s, composite box-girder with corrugated steel webs (CBGCSW) has been widely applied in the world, especially in Japan and China (Cheyrezy and Combault, 1990; Shen et al, 2018c). As a result of the replacement of traditional concrete webs with corrugated steel webs (CSW), the self-weight of CBGCSW can be decreased by 10%–25% (Rosignoli, 1999). At the same time, the shear strength can also be enhanced rapidly, which means that cracking problem in concrete webs can be solved (He et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Modified rotating-angle softened truss model for composite box-girder with corrugated steel webs under pure torsion

Zhu

Wan

Shen

et al. 2020

Advances in Structural Engineering

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Replacement of traditional concrete webs with corrugated steel webs will lead to a significant decrease in torsional stiffness of composite box-girder with corrugated steel webs, which needs special attention in the design of wide and curved composite box-girder with corrugated steel webs. To improve the accuracy of prediction on the entire torsional performance of composite box-girder with corrugated steel webs, a modified rotating-angle softened truss model for torsion is developed in this study. Modified rotating-angle softened truss model for torsion mainly takes into account the new three-stage average stress coefficients, the new two-stage shear strain relationship between corrugated steel web and slabs, and the torsional deformation coordination of whole cross section. To testify the accuracy of modified rotating-angle softened truss model for torsion and to better understand the performance of composite box-girder with corrugated steel webs under pure torsion, two scaled specimens are tested in this article. The torque–twist curves and shear strains calculated by modified rotating-angle softened truss model for torsion reach a good agreement with experimental results, which indicates that modified rotating-angle softened truss model for torsion can successfully predict the entire torsional performance of composite box-girder with corrugated steel webs. In addition, compared with test data obtained from previous literature, the proposed modified rotating-angle softened truss model for torsion is more capable of predicting full torsional response of composite box-girder with corrugated steel webs than other rotating-angle models, especially at cracking stage and ultimate stage.

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Prestressed Concrete Box Girder Bridges With Folded Steel Plate Webs.

Cited by 46 publications

References 3 publications

Theoretical and Experimental Study on Natural Frequency of Externally Prestressed Box-Girder with Corrugated Steel Webs

Theoretical and Experimental Study on Natural Frequency of Externally Prestressed Box-Girder with Corrugated Steel Webs

Shear Performance of Tapered Beams with Corrugated Steel Webs with Consideration of Positive and Negative Resal Effects

Modified rotating-angle softened truss model for composite box-girder with corrugated steel webs under pure torsion

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