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- W3048750758 abstract "Abstract The paper deals with multiparameter sensitivity analysis of a composite footbridge. A shell-like structure is 14.5 m long shows U-shaped cross-section and inner service dimensions 1.3 × 2.5 m. Glass fiber reinforced polymer GFRP laminate constitutes faces of a sandwich structure while PET foam received from recycled bottle builts a core. The structure was divided into 285 independent areas where the thickness of laminates and stiffness modulus of PET foam were established as design variables. The impact of their variation on variation of state variables was investigated, vertical displacement of structure, longitudinal strain in handrail and transverse strain in deck were addressed here. Sensitivity vector was computed by a semi-analytical method and, subsequently, expressed in a matrix form and next presented graphically in the form of sensitivity areas. The conducted sensitivity analysis exhibits areas that can be strengthened in order to minimize vertical displacement, longitudinal strain in handrail and transverse strain deck, determining the areas where parameters can be reduced without increasing the value of state variables. The obtained results are bound to support the structural design process or to improve the performance of existing structures." @default.
- W3048750758 created "2020-08-18" @default.
- W3048750758 creator A5052797393 @default.
- W3048750758 date "2020-12-01" @default.
- W3048750758 modified "2023-09-27" @default.
- W3048750758 title "Multiparameter sensitivity analysis of a GFRP composite footbridge of a sandwich structure and U-shaped cross-section" @default.
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- W3048750758 doi "https://doi.org/10.1016/j.compstruct.2020.112793" @default.
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