Behaviour of Plate Girders with Intermediate Transverse Stiffeners – Experimental Investigation

Nascimento, Sérgio; Santos, R; Pedro, José J. Oliveira

doi:10.1002/cepa.1806

Cited by 4 publications

(4 citation statements)

References 20 publications

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“…Recent studies [5][6][7][8] show several results of experimental residual stresses measured after the production of steel plate girders (Fig. 7 (a) e (b)).…”

Section: Residual Stressesmentioning

confidence: 99%

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Steel Plate Girders: Residual Stresses From the Manufacturing Process

Ferreira,

Nascimento,

Pedro

2024

ce papers

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The manufacturing process of steel plate girders generates residual stresses and geometrical imperfections in the flange and web plates that constitute them. These imperfections must respect the manufacturing tolerances that are presented in the regulation. In the present work several stages of the manufacturing process are studied, being these the thermal cutting of the plates, the assembling of the beam and the flange‐web welding process. This work is also accompanied by several results in terms of residual stresses and geometric imperfections of an experimental study and is made the confrontation of those results with the theoretical information available on the prEN 1993‐1‐14 and with the results obtained by numerical models that simulate the thermal processes of the plates cutting and welding.

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“…Recent studies [5][6][7][8] show several results of experimental residual stresses measured after the production of steel plate girders (Fig. 7 (a) e (b)).…”

Section: Residual Stressesmentioning

confidence: 99%

“…Residual stresses obtained by the sectioning method in the production of beams: (a) G07 and G08, (b) G01 and G02, (c) location of the strain gauges[5][6]. Dimensions in mm…”

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confidence: 99%

Steel Plate Girders: Residual Stresses From the Manufacturing Process

Ferreira,

Nascimento,

Pedro

2024

ce papers

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“…A mesh convergence study was conducted to achieve that balance, and the results led to the adoption of a maximum element size of approximately 40x40 mm (about ℎw/25) [32]. The authors' experimental test results were used to validate the model [33].…”

Section: Numerical Modelsmentioning

confidence: 99%

Numerical study on steel plate girders ‐ Intermediate transverse stiffeners axial force

Nascimento,

Pedro,

Kuhlmann

2023

ce papers

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Transverse stiffeners are used in steel plate girders with slender webs to provide lateral support to the web along the span and thus increase the plate girder shear resistance. Furthermore, transverse stiffeners anchor the tension field, resulting in axial compression in the stiffener. Despite this, it is widely assumed that the design axial force provided by the FprEN 1993‐1‐5 [1] for the transverse stiffeners is significantly greater than that observed in experimental testing and numerical simulations.The results of 550 nonlinear numerical simulations of plate girders loaded in shear up to failure are presented. Shear resistance and axial stiffener forces are evaluated while the effects of a wide parameter range as web aspect ratio and thickness, flange‐to‐web area ratio, and steel grade are investigated. The numerical results are compared to the European standard design values. Finally, a statistical analysis of the set of results is presented.The numerical analyses show that the axial forces installed in the intermediate transverse stiffeners are significantly lower than those specified by FprEN 1993‐1‐5 [1].

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“…They also showed the importance of postbuckling strength in predicting the ultimate shear resistance of stiffened web panels. Nascimento et al [17] gave an insight into the behaviour of the plate girder when it was reinforced with intermediate transverse stiffeners, and they showed that this strengthening contributed signi cantly to limiting lateral panel buckling. Applications of plate girders in seismic-prone areas were the focus of the study by Natesh et al [18], where they used different loading conditions.…”

Section: Introductionmentioning

confidence: 99%

Comprehensive Exploration of Technological Tensioning Effects in Welded Thin Plate Girders: An In-Depth Investigation

Khalaf,

Chodorowska,

Al-Sabur

et al. 2024

Preprint

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Thin-walled plate girders occupy a special place in structures and construction due to their efficiency in carrying loads. The permanent deformations of the girder lead to a lack of stability, which necessarily leads to its replacement. Replacing permanently deformed thin-walled load-bearing structures requires large financial outlays. Technological prestressing is one of the most effective methods for studying and treating permanent deflections in girder elements. This study looks at the defection of welded thin-plate S235JR steel girders, examining how technological tensioning effects interact with different loading conditions. Four configurations were investigated: welded in bottom caps, welded in two side caps (two configurations), and welded in two side caps and bottom caps. Five loads of P (20, 40, 60, 80, and 95) kN were applied to the seven sensor positions of each girder section (A, B, C, and D). All points were examined during the 95 minutes of cooling time. For technological compression, the results showed that there is a convergence between the analytical solution and the experimental results, as the most significant deviation achieved in the analysis was 5.21 mm compared to 6 mm experimentally. When the grinder is loaded with the force P = 50N, the maximum defect achieved at grinder A4 is 4 mm, compared with 1mm at grinder A2. In prestressed grinder B, the deflections that were reached were 2.50 mm, 3.50 mm, and 3.52 mm in the analytical, experimental, and FE numerical models, respectively. The tensions that were reached were 36.96 MPa, 44.28 MPa, and 27.93 MPa.

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Behaviour of Plate Girders with Intermediate Transverse Stiffeners – Experimental Investigation

Cited by 4 publications

References 20 publications

Steel Plate Girders: Residual Stresses From the Manufacturing Process

Steel Plate Girders: Residual Stresses From the Manufacturing Process

Numerical study on steel plate girders ‐ Intermediate transverse stiffeners axial force

Comprehensive Exploration of Technological Tensioning Effects in Welded Thin Plate Girders: An In-Depth Investigation

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