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Article

Effects of Flexural Stiffness on Deformation Behaviour of Steel and FRP Stress-Ribbon Bridges

1
Department of Steel and Composite Structures, Vilnius Gediminas Technical University, Vilnius TECH, LT-10223 Vilnius, Lithuania
2
Laboratory of Innovative Building Structures, Vilnius TECH, LT-10223 Vilnius, Lithuania
*
Author to whom correspondence should be addressed.
Academic Editors: Jong Wan Hu and Panagiotis G. Asteris
Appl. Sci. 2021, 11(6), 2585; https://doi.org/10.3390/app11062585
Received: 12 February 2021 / Revised: 8 March 2021 / Accepted: 11 March 2021 / Published: 14 March 2021
(This article belongs to the Special Issue Advances on Structural Engineering, Volume II)
Stress-ribbon systems develop the most flexible and slender bridges. A structural system of such elegant bridges consists of cables or ribbons and deck slabs placed to these strips to distribute the live load. Although this structural system is simple, the design of such structures is a challenging issue. Design limitations of the bridge deck slope induce considerable forces in the ribbons, which transfer the tension to massive foundations. The deformation increase under concentrated and asymmetrical loads causes another problem of stress-ribbon bridges—the kinematic component, the design object of such structures, exceeds the dead load-induced vertical displacement several times. This paper introduces a new concept of such a structural system, comprising ribbons made of flexural-stiff profiles. The proposed approach to reduce kinematic displacements is illustrated experimentally by testing two pedestrian bridge prototypes with different flexural stiffness of the steel ribbons. Numerical models calibrated using the test results are used for the parametric analysis of the flexural stiffness effect on the deformation behaviour of the bridge system with steel and fibre-reinforced polymer (FRP) ribbons. A practical approach to the choice of the efficient flexural stiffness of the ribbon-profiles is also proposed. View Full-Text
Keywords: stress-ribbon bridge; kinematic displacement; flexural stiffness; physical tests; steel ribbons; fibre-reinforced polymer; numerical modelling; analytical model stress-ribbon bridge; kinematic displacement; flexural stiffness; physical tests; steel ribbons; fibre-reinforced polymer; numerical modelling; analytical model
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MDPI and ACS Style

Juozapaitis, A.; Sandovič, G.; Jakubovskis, R.; Gribniak, V. Effects of Flexural Stiffness on Deformation Behaviour of Steel and FRP Stress-Ribbon Bridges. Appl. Sci. 2021, 11, 2585. https://doi.org/10.3390/app11062585

AMA Style

Juozapaitis A, Sandovič G, Jakubovskis R, Gribniak V. Effects of Flexural Stiffness on Deformation Behaviour of Steel and FRP Stress-Ribbon Bridges. Applied Sciences. 2021; 11(6):2585. https://doi.org/10.3390/app11062585

Chicago/Turabian Style

Juozapaitis, Algirdas, Giedrė Sandovič, Ronaldas Jakubovskis, and Viktor Gribniak. 2021. "Effects of Flexural Stiffness on Deformation Behaviour of Steel and FRP Stress-Ribbon Bridges" Applied Sciences 11, no. 6: 2585. https://doi.org/10.3390/app11062585

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