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A platform for research: civil engineering, architecture and urbanism
Shear buckling of stainless steel plate girders with non-rigid end posts
Abstract This paper presents an experimental and numerical study of stainless steel plate girders with non-rigid end posts. Stereo vision digital image correlation was employed to continuously measure the deformed shape and the corresponding three-dimensional displacements of the lean duplex specimen, which enabled the full deformation history of the whole web of the plate girder to be traced. Following the experimental investigation, a finite element study was conducted and validated. Subsequently, a sensitivity analysis was performed to investigate the effectiveness of all design parameters in order to give directions for improvement. The comparisons showed that the European code leads to acceptable strength predictions, yet further improvements remain possible to more accurately predict the contribution of the flange, and to include the contribution of the stiffness of the non-rigid end post to this instability phenomenon.
Graphical abstract Display Omitted
Highlights A lean duplex stainless steel plate girder was tested for shear buckling. DIC was used to trace the 3D deformation of the web during the shear buckling test. The geometric imperfection was measured with DIC and implemented in the FEM. A parametric study including duplex and austenitic stainless steel was performed. Implementation of the end post in the design rules for shear buckling is proposed.
Shear buckling of stainless steel plate girders with non-rigid end posts
Abstract This paper presents an experimental and numerical study of stainless steel plate girders with non-rigid end posts. Stereo vision digital image correlation was employed to continuously measure the deformed shape and the corresponding three-dimensional displacements of the lean duplex specimen, which enabled the full deformation history of the whole web of the plate girder to be traced. Following the experimental investigation, a finite element study was conducted and validated. Subsequently, a sensitivity analysis was performed to investigate the effectiveness of all design parameters in order to give directions for improvement. The comparisons showed that the European code leads to acceptable strength predictions, yet further improvements remain possible to more accurately predict the contribution of the flange, and to include the contribution of the stiffness of the non-rigid end post to this instability phenomenon.
Graphical abstract Display Omitted
Highlights A lean duplex stainless steel plate girder was tested for shear buckling. DIC was used to trace the 3D deformation of the web during the shear buckling test. The geometric imperfection was measured with DIC and implemented in the FEM. A parametric study including duplex and austenitic stainless steel was performed. Implementation of the end post in the design rules for shear buckling is proposed.
Shear buckling of stainless steel plate girders with non-rigid end posts
Fortan, Maarten (author) / Ferraz, Gonçalo (author) / Lauwens, Kathleen (author) / Molkens, Tom (author) / Rossi, Barbara (author)
2020-06-06
Article (Journal)
Electronic Resource
English
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