Dynamic behaviour of a GFRP-steel hybrid pedestrian bridge in serviceability conditions. Part 2: Numerical and analytical study

Sá, Mário F.; Silvestre, Nuno; Correia, João R.; Guerreiro, Lúıs; Gomes, Augusto

doi:10.1016/j.tws.2017.05.015

Cited by 13 publications

(3 citation statements)

References 13 publications

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“…The span of the bridge was 13.3 m and the width was 2.5 m. The GFRP slab was fabricated using thin-walled multicellular deck panels. Experimental, numerical, and analytical study of St. Mateus Bridge is presented in papers [73,74]. São Silvestre Footbridge is a 10.5 m span hybrid bridge in Portugal constructed using pultruded GFRP profiles and a very thin concrete deck made of steel fibre-reinforced self-compacting concrete (SFRSCC) pre-cast slabs.…”

Section: Mapledurham Footbridge Uk 2015 (Deck)mentioning

confidence: 99%

A Review of Fibre Reinforced Polymer Bridges

Qureshi

2023

Fibers

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Fibre-reinforced polymer composites (FRPs) offer various benefits for bridge construction. Lightweight, durability, design flexibility and fast erection in inaccessible areas are their unique selling points for bridge engineering. FRPs are used in four bridge applications: (1) FRP rebars/tendons in concrete; (2) repair and strengthening of existing bridges; (3) new hybrid–FRP bridges with conventional materials and (4) all–FRP composite new bridges made entirely of FRP materials. This paper reviews FRP bridges, including all–FRP and hybrid–FRP bridges. FRP bridges’ history, materials, processes and bridge components—deck, girder, truss, moulded parts and cables/rebars are considered. This paper does not discuss the use of FRP as an architectural element and a strengthening system. While lack of design codes, material specifications and recycling are the major challenges, the high cost of FRPs still remains the most critical barrier to the progress of FRPs in bridges.

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Section: Mapledurham Footbridge Uk 2015 (Deck)mentioning

confidence: 99%

A Review of Fibre Reinforced Polymer Bridges

Qureshi

2023

Fibers

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“…O material também pode ser utilizado em passarelas de pedestre, sendo que é um material adequado, seguro e apresenta boas respostas quanto às vibrações e conforto dos transeuntes [14].…”

Section: Aplicação Dos Compósitos Gfrpunclassified

Barras de fibra de vidro, uma alternativa inovadora e suas potencialidades: revisão bibliográfica

et al. 2021

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O desempenho, eficiência, resiliência e sustentabilidade de uma estrutura são parâmetros fundamentais para promover a qualidade de vida e desenvolvimento econômico de uma infraestrutura. Atualmente, as patologias como corrosão são problemas sérios que oneram os cofres públicos e o consumidor final, além de gerar maiores importunos ao longo do tempo. Por isso, o emprego de materiais alternativos e de alto desempenho ganham cada vez mais atenção, devido à alta complexidade de gerenciamento, manutenção e adaptação resiliente às mudanças sociais, climáticas, poluição acentuada, diminuição dos recursos financeiros e entre outras durante todo o seu ciclo de vida da infraestrutura. Portanto, as barras de GFRP (Glass-Fiber-Reinforced Polymer) ganham evidência por serem inertes a corrosão, sendo empregada como uma ferramenta de reparo, manutenção e emprego em novas obras civis. Esse material associado a tecnologia, possibilita a redução de custo e melhoria no comportamento da estrutura. O plano de fundo deste artigo é de fomentar estudos futuros, vislumbrando desenvolver uma norma brasileira de dimensionamento de concreto armado (CA) GFRP. O domínio deste assunto aos profissionais, gestores e envolvidos na concepção e implementação de sistemas de infraestrutura e obras civis é fundamental, pois permite um planejamento sistêmico, otimizado e coerente as necessidades, minimizando custos, mas sem comprometer a qualidade da estrutura.

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“…15,37 Difficulty in extracting the correct frequency from FFT generated spectrum is caused by the fact that dynamic response of the structure to excitationwind, shocks and other impactsconsists from the excitation itself, dynamic structure response and ceasing of vibrations. [38][39][40] The resulting vibration spectrum contains multiple frequencies, and the natural ones are hardly distinguishable. Prove of the desired peak in spectrum requires additional analysis.…”

Section: Obtaining Natural Frequency Valuesmentioning

confidence: 99%

Automatic quality detection system for structural objects using dynamic output method: Case study Vilnius bridges

Bučinskas

Dzedzickis

Šešok

et al. 2021

Structural Health Monitoring

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Paper provides an attempt to create a methodology for automated structure health monitoring procedures using vibration spectrum analysis. There is an option to use autoregressive (AR) spectral analysis to extract information from frequency spectra when conventional Fast Fourier transformation (FFT) analysis cannot give relevant information. An autoregressive spectrum analysis is widely used in optics and medicine; however, it can be applied for different purposes, such as spectra analysis in electronics or mechanical vibration. This paper presents an automated structural health monitoring approach based on the algorithm-driven definition of the first resonant frequency value from a noisy signal, acquired from traffic-created bridge vibrations. We implemented the AR procedure and developed a peak detection algorithm for experimental data processing. The functionality of the proposed methodology was evaluated by performing research on six bridges in Vilnius (Lithuania). We compared three methods of data processing: FFT, filtered FFT and AR. Bridges vibrations under different excitation conditions (wind, impulse and traffic) in normal direction were measured using accelerometers. AR provided one peak representing the lowest resonant frequency in all cases, while FFT and filtered FFT provided up to 12 peaks with similar frequency values. Such results allow implementing our method for remote automated structures health monitoring and ensure structures safety using a convenient and straightforward diagnostic method.

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Dynamic behaviour of a GFRP-steel hybrid pedestrian bridge in serviceability conditions. Part 2: Numerical and analytical study

Cited by 13 publications

References 13 publications

A Review of Fibre Reinforced Polymer Bridges

A Review of Fibre Reinforced Polymer Bridges

Barras de fibra de vidro, uma alternativa inovadora e suas potencialidades: revisão bibliográfica

Automatic quality detection system for structural objects using dynamic output method: Case study Vilnius bridges

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