Badania zmęczeniowe płyt pomostowych z betonu lekkiego zbrojonych prętami kompozytowymi GFRP

Agnieszka Wiater; Tomasz Siwowski

doi:10.7409/rabdim.024.008

Published: 2024-07-09

Vol. 23 No. 2 (2024)

Research on fatigue life of lightweight concrete bridge decks reinforced with GFRP composite rebars

Agnieszka Wiater

, Tomasz Siwowski

Section: Articles

https://doi.org/10.7409/rabdim.024.008

Abstract

Concrete deck slabs made of lightweight concrete (LWC) and reinforced with composite bars (FRP) are an advantageous alternative to conventional reinforced concrete slabs, especially when retrofitting existing bridges. One of the critical limit states determining the possibility of using LWC/FRP slabs in road bridge decks is fatigue life. This paper presents the results of research in the field of fatigue life of such decks. A total of nine full-size concrete slabs measuring 3.0 m × 1.0 m × 0.18 m were tested. The main parameters of the slabs compared in the study were: type of concrete (light vs. ordinary), reinforcement ratio of the slabs and the level of fatigue load. The results of fatigue tests were analysed based on crack morphology analysis and slab deflection as well as fatigue life and failure form evaluation. Design procedures adopted in selected standards were also verified to assess the fatigue life of such decks.

Keywords:

composite reinforcement, deck slabs, fatigue life, lightweight concrete

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Wiater, A., & Siwowski, T. (2024). Research on fatigue life of lightweight concrete bridge decks reinforced with GFRP composite rebars. Roads and Bridges – Drogi I Mosty, 23(2), 155–178. https://doi.org/10.7409/rabdim.024.008

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Agnieszka Wiater

wiater@prz.edu.pl
https://orcid.org/0000-0001-5559-3841

Affiliation:

Rzeszow University of Technology, The Faculty of Civil and Environmental Engineering and Architecture, Roads and Bridges Department, Poznańska 2 St., 35-084 Rzeszow Poland

Tomasz Siwowski

https://orcid.org/0000-0002-2003-000X

Affiliation:

Rzeszow University of Technology, The Faculty of Civil and Environmental Engineering and Architecture, Roads and Bridges Department, Poznańska 2 St., 35-084 Rzeszow Poland

Research on fatigue life of lightweight concrete bridge decks reinforced with GFRP composite rebars

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Agnieszka Wiater

Tomasz Siwowski