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Article

FRP Pedestrian Bridges—Analysis of Different Infill Configurations

1
Faculty of Architecture, University of Zagreb, Andrije Kačića Miošića 26, 10000 Zagreb, Croatia
2
Faculty of Civil Engineering, University of Zagreb, Andrije Kačića Miošića 26, 10000 Zagreb, Croatia
*
Authors to whom correspondence should be addressed.
Academic Editors: Chiara Bedon, Mislav Stepinac and Flavio Stochino
Buildings 2021, 11(11), 564; https://doi.org/10.3390/buildings11110564
Received: 15 October 2021 / Revised: 13 November 2021 / Accepted: 17 November 2021 / Published: 22 November 2021
(This article belongs to the Special Issue Innovation in Structural Analysis and Dynamics for Constructions)
The main aim of this study is to analyze fiber-reinforced polymer (FRP) bridge decks according to their material, cross-section, and shape geometry. Infill cell configurations of the decks (rectangular, triangular, trapezoidal, and honeycomb) were tested based on the FRP cell units available in the market. A comparison was made for each cell configuration in flat and curved bridge shapes. Another comparison was made between the material properties. Each model was computed for a composite layup material and a quasi-isotropic material. The quasi-isotropic material represents chopped fibers within a matrix. FE (finite element) analysis was performed on a total of 24 models using Abaqus software. The results show that the bridge shape geometry and infill configuration play an important role in increasing the stiffness, more so than improving the material properties. The arch shape of the bridge deck with quasi-isotropic material and chopped fibers was compared to the cross-ply laminate material in a flat bridge deck. The results show that the arch shape of the bridge deck contributed to the overall stiffness by reducing the deformation by an average of 30–40%. The results of this preliminary study will provide a basis for future research into form finding and laboratory testing. View Full-Text
Keywords: FRP deck; pedestrian bridges; pultruded deck; sandwich deck; cell configuration; laminate; quasi-isotropic; geometry optimization; 3D printing FRP deck; pedestrian bridges; pultruded deck; sandwich deck; cell configuration; laminate; quasi-isotropic; geometry optimization; 3D printing
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MDPI and ACS Style

Stepinac, L.; Skender, A.; Damjanović, D.; Galić, J. FRP Pedestrian Bridges—Analysis of Different Infill Configurations. Buildings 2021, 11, 564. https://doi.org/10.3390/buildings11110564

AMA Style

Stepinac L, Skender A, Damjanović D, Galić J. FRP Pedestrian Bridges—Analysis of Different Infill Configurations. Buildings. 2021; 11(11):564. https://doi.org/10.3390/buildings11110564

Chicago/Turabian Style

Stepinac, Lucija, Ana Skender, Domagoj Damjanović, and Josip Galić. 2021. "FRP Pedestrian Bridges—Analysis of Different Infill Configurations" Buildings 11, no. 11: 564. https://doi.org/10.3390/buildings11110564

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