Experimental behavior of curved bottom flanges in steel box-girder bridge decks

Ljubinković, Filip; Martins, João Pedro; Gervásio, Helena; Silva, Luís Simões da; Pedro, José J. Oliveira

doi:10.1016/j.jcsr.2019.05.031

Cited by 16 publications

(16 citation statements)

References 8 publications

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“…The segments were tested using threepoint bending tests, thus assessing the behaviour of a box-girder bridge deck near the intermediate support, where the moment-shear (M-V) interaction occurs. A detailed description of the experimental programme executed and the most relevant results have been reported by Ljubinkovic et al [6].…”

Section: Resultsmentioning

confidence: 99%

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Steel box‐girder bridge decks with curved bottom flange

et al. 2020

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Nominated for the Professor Eduardo de Arantes e Oliveira Award at XII Conference on Steel and Composite Construction in Coimbra 2019 This paper presents the results of a numerical parametric study that investigated the M‐V interaction behaviour of box‐girder bridge deck specimens. The study made use of an advanced numerical model that was previously verified against the experimental results. Based on the numerical results and the current rules for trapezoidal box girders, new design models are proposed for predicting the bending and shear resistance of cross‐sections with a curved bottom flange. Additionally, the force‐based M‐V interaction equation proposed by Jáger et al. [1], adopted in the new version of EN 1993‐1‐5 [2], was verified and slightly modified to fit this type of cross‐section.

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Section: Resultsmentioning

confidence: 99%

“…1400 mm wide and flat webs welded to the curved panel. For the parametric study (see in section 2.5), the more realistic (non-scaled) geometry of the bridge cross-sections was considered, where several parameters were varied within the limits of the practical applications reported in [6].…”

Section: Geometrymentioning

confidence: 99%

Steel box‐girder bridge decks with curved bottom flange

et al. 2020

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“…The mechanical properties of the S460 NL and S690 QL steels were obtained by a standard tensile test as described in [6]. Structural steel was modelled as an elastic-plastic material, where the measured engineering stress-strain diagrams were first simplified and approximated by a polygonal curve and then, transformed into true (Cauchy) stress and logarithmic strains.…”

Section: Further Considerations Of Fem Modelmentioning

confidence: 99%

“…3, and it may be noticed that good correspondence was achieved for both bridge deck specimens. a) Experimental [6] b) FEM Fig. 3: Comparison of failure modes…”

Section: Conference On Steel and Composite Construction Coimbra mentioning

confidence: 99%

“…Based on the presented results, it may be concluded that geometry, material properties, boundary conditions, loads, size and type of FE are modelled correctly and thus these numerical models may be further used for the parametric study. [6] Using the cross-section of the case study presented in Fig. 1 (in scale 1:1) as a reference case, several geometrical parameters were varied in a parametric numerical study in order to investigate their effect on the M-V interaction behavior:…”

Section: Conference On Steel and Composite Construction Coimbra mentioning

confidence: 99%

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Experimental and Numerical Investigation on the Steel Box‐girder Bridge Decks With Curved Bottom Flange

et al. 2019

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In this paper, the results of the numerical parametric study are presented, in which the M‐V interaction behaviour of box‐girder bridge deck specimens was investigated. For this study, an advanced numerical model was used, previously calibrated against the experimental results. Based on the numerical results and the existent rules for the trapezoidal box‐girders, new design models were proposed for the prediction of the bending and shear resistance of cross‐sections with the curved bottom flange. Additionally, the force‐based M‐V interaction equation proposed by Jáger et al. [1] that is also adopted in the new version of EN 1993‐1‐5 [2] is verified and slightly modified to fit for this type of the cross‐section.

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Behaviour of Plate Girders with Intermediate Transverse Stiffeners – Experimental Investigation

2022

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Transverse stiffeners are used in slender steel plate girders along the span to give web lateral support and increase plate girder shear resistance. According to several studies, transverse stiffeners are primarily engaged in out‐of‐plane bending to laterally limit the edges of the panel as it buckles, rather than axial compression to anchor the tension field. As a result, the axial loading defined in EN 1993‐1‐5 [1] for the design of transverse stiffeners, based on tension field action, is usually deemed to be substantially larger than that observed in laboratory testing and numerical simulations. The test results of six plate girders loaded to failure, with slender webs and two transverse stiffener geometries, are presented. FE‐models that accurately replicate the tests provide a thorough view of the plate girder behaviour. The stiffeners internal forces are evaluated during plate girder loading up to failure. The transverse stiffener internal forces attained by both models are compared. It is confirmed that both the axial compression and the bending moment in the intermediate transverse stiffeners are much lower than the values prescribed by the EN 1993‐1‐5 [1].

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Experimental behavior of curved bottom flanges in steel box-girder bridge decks

Cited by 16 publications

References 8 publications

Steel box‐girder bridge decks with curved bottom flange

Steel box‐girder bridge decks with curved bottom flange

Experimental and Numerical Investigation on the Steel Box‐girder Bridge Decks With Curved Bottom Flange

Behaviour of Plate Girders with Intermediate Transverse Stiffeners – Experimental Investigation

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