Horizontally curved composite plate girders with trapezoidally corrugated webs

Basher, Mohammed A.; Shanmugam, N. E.; Khalim, Abdul

doi:10.1016/j.jcsr.2011.01.015

Cited by 17 publications

(7 citation statements)

References 20 publications

(23 reference statements)

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“…As is shown in Figure 9, strain rosette gages were used to measure the strains in three directions. The shear strain γ w and the principle strain direction angle ϕ can be calculated by Equations (26) and (27) respectively.…”

Section: Non-destructive Testmentioning

confidence: 99%

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Shear Strength of Trapezoidal Corrugated Steel Webs for Horizontally Curved Girder Bridges

et al. 2019

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Curved composite girder bridges with corrugated steel webs (CSWs) have already been constructed around the world. However, limited work has been done on their shear behavior. In this paper, the corrugated steel web (CSW) in horizontally curved girders (HCGs) is treated as an orthotropic cylindrical shallow shell, and the analytical formula for the elastic global shear buckling stress is deduced by the Galerkin method. Calculation tables for the global shear buckling coefficient for a four-edge simple support, for a four-edge fixed support, and for the two edges constrained by flanges fixed and the other two edges simply supported are given. Then, a parametric study based on a linear buckling analysis is performed to analyze the effect of the curvature radius and girder span on the shear buckling stress. Analytical and numerical results show that the difference of shear buckling stress of CSWs between curved girders and straight girders is small, so the shear design formulas for straight girders can be applied for curved girders. Finally, a series of tests were performed on three curved box girders with CSWs. Similar to CSWs in straight girders, the shear strain distributions of CSWs in HCGs are almost uniform along the direction of the web height and the principal strain direction angles are close to 45°. For the three specimens, CSWs carry about 76% of the shear force. In the destructive test, shear buckling after yielding occurred in all specimens which is in good agreement with the theoretical prediction, which means that the analytical formulas provide good predictions for the shear buckling stress of CSWs in HCGs and can be recommended for design purposes.

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Section: Non-destructive Testmentioning

confidence: 99%

“…Basher et al [26] studied the ultimate shear behavior of HCGs with trapezoidal CSWs and proposed an approximate method to calculate the shear strength of these girders. The ultimate shear strength of curved girders uses the equation of straight girders introducing a modification factor to account for the curvature of curved girders.…”

Section: Introductionmentioning

confidence: 99%

Shear Strength of Trapezoidal Corrugated Steel Webs for Horizontally Curved Girder Bridges

et al. 2019

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“…Based on experimental and theoretical analysis, Zhou et al (2016) first studied the shear stress distribution and shear deformation in non-prismatic beams with CSWs [20][21][22]. On the other hand, Basher et al [23] studied the nonlinear shear strength of curved composite plate girders with CSWs. The girders were assumed straight, in the first step of their design model, and the shear strengths of the girders were taken as the sum of the web buckling load, the web post buckling strength and the flanges contribution, besides that of the concrete slab.…”

Section: Appl Sci 2018 8 X For Peer Review 2 Of 24mentioning

confidence: 99%

Study on Elastic Global Shear Buckling of Curved Girders with Corrugated Steel Webs: Theoretical Analysis and FE Modelling

et al. 2018

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Despite the construction of several curved prestressed concrete girder bridges with corrugated steel webs (CSWs) around the world; their shear behavior has seldom been investigated. Accordingly, this paper substitutes the lack of available information on the global elastic shear buckling of a plane curved corrugated steel web (PCCSW) in a curved girder. This is based on the equilibrium equations and geometric equations in the elastic theory of classical shells, combined with the constitutive relation of orthotropic shells. Currently, the global elastic shear buckling process of the PCCSW in a curved girder is studied, for the first time in literature, with an equivalent orthotropic open circular cylindrical shell (OOCCS) model. The governing differential equation of global elastic shear buckling of the PCCSW, as well as its buckling strength, is derived by considering the orthotropic characteristics of a corrugated steel web, the rational trigonometric displacement modes, Galerkin’s method and variational principles. Additionally, the accuracy of the proposed theoretical formula is verified by comparison with finite element (FE) results. Moreover, the expressions of the inner or outer folded angle and radius of curvature are given by the cosine theorem of the trigonometric function and inverse trigonometric function. Subsequently, parametric analysis of the shear buckling behavior of the PCCSW is carried out by considering the cases where the radius of curvature is constant or variable. This parametric analysis highlights the effects of web dimensions, height-to-thickness ratio, aspect ratios of longitudinal and inclined panels, corrugation height, curvature radius and folded angles on the elastic shear buckling strength. As a result, this study provides a theoretical reference for the design and application of composite curved girders with CSWs.

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“…Thus, an imperfection model has been built in LUSAS by loading the results from buckling analysis in which the deformed mesh was considered as initially imperfect geometry of the girders (Basher et al 2011;Chen, Jia 2010). The buckling analysis predicts the possible deformed shapes due to structural instability.…”

Section: Finite Element Analysismentioning

confidence: 99%

Behaviour of Composite Plate Girders With Partial Interaction

Yatim

Shanmugam

Badaruzzaman

2013

Journal of Civil Engineering and Management

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Abstract. This paper is concerned with the behaviour and strength of composite plate girders in which, the interaction between the steel plate girder and concrete slab is partial. Based on curvature compatibility principle, an approximate method is proposed from which, the shear capacity and deflection at any given load may be determined. The tension field action developed in web panels at the post-buckling stage is incorporated in the solutions. From the results obtained by using the proposed method, it is found that the flexural stiffness and failure load drop with decrease in degree of interaction. Comparisons are made between the results obtained through the proposed method and the corresponding ones from finite element analysis. A satisfactory correlation between the results in terms of behaviour and strength establishes the accuracy of the proposed method. Keywords: composite plate girders, partial interaction, ultimate load, flexural behaviour, finite element method.

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Horizontally curved composite plate girders with trapezoidally corrugated webs

Cited by 17 publications

References 20 publications

Shear Strength of Trapezoidal Corrugated Steel Webs for Horizontally Curved Girder Bridges

Shear Strength of Trapezoidal Corrugated Steel Webs for Horizontally Curved Girder Bridges

Study on Elastic Global Shear Buckling of Curved Girders with Corrugated Steel Webs: Theoretical Analysis and FE Modelling

Behaviour of Composite Plate Girders With Partial Interaction

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