FRP Pedestrian Bridges-Analysis of Different Infill Configurations

Znanstveni rad - Izvorni znanstveni rad

• Autor: Lucija Stepinac
• Autor: Ana Skender
• Autor: Domagoj Damjanović
• Autor: Josip Galić
• Autorova ustanova: Sveučilište u Zagrebu; Građevinski fakultet
• Znanstveno / umjetničko područje, polje i grana: TEHNIČKE ZNANOSTI; Građevinarstvo

Sažetak (engleski)

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.

• Ključne riječi (engleski): FRP deck; pedestrian bridges; pultruded deck; sandwich deck; cell configuration; laminate; quasi-isotropic; geometry optimization; 3D printing
• Jezik: engleski
• Vrsta publikacije: Znanstveni rad - Izvorni znanstveni rad
• Status objave: Objavljen
• Vrsta recenzije: Recenziran - međunarodna recenzija
• Verzija publikacije: Objavljena verzija rada (izdavačev PDF)
• Naslov časopisa: Buildings
• Brojčani podaci: vol. 11(11), 564
• e-ISSN: 2075-5309
• DOI: https://doi.org/10.3390/buildings11110564
• URN:NBN: urn:nbn:hr:237:889087
• Datum objave publikacije: 2021
• Vrsta resursa: Tekst
• Prava pristupa: Otvoreni pristup
• Datum i vrijeme pohrane: 2024-09-04 18:30:57