Modal properties identification of a novel sandwich footbridge – Comparison of measured dynamic response and FEA

Chróścielewski, Jacek; Miśkiewicz, Mikołaj; Pyrzowski, Łukasz; Rucka, Magdalena; Sobczyk, Bartosz; Wilde, Krzysztof

doi:10.1016/j.compositesb.2018.06.016

Cited by 49 publications

(25 citation statements)

References 39 publications

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“…As it was presented, developed modelling method of shell and sandwich type structure gave satisfying results -the model was positively validated (see also [8][9]) and after expansion was successfully used to design target composite footbridge [4][5].…”

Section: Discussionmentioning

confidence: 86%

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Dynamic tests of composite footbridge segment – experimental and numerical studies

et al. 2019

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Experimental dynamic tests and numerical simulations of a 3 meters long segment of a footbridge made of polymer composites are presented in the paper. The span-length is reduced, however dimensions of cross-section are the same as the target footbridge. The segment structure is made of sandwich panels, which consist of fibre reinforced polymer (GFRP) laminates (skins) and a PET foam (core). The first part of the paper contains description and results of experimental dynamic tests, which were subjected to the structure. The excitations during these tests was realised by a group of people standing or jumping on the structure deck. The obtained results allowed to determine natural frequencies as well as damping ratios. Moreover, cyclic loading was applied to the structure deck to check the possibility of delamination or debonding occurrence, as a result of repetitive dynamic excitations. The second part contains validation of numerical model - results of numerical analysis and its comparison with the experimental ones.

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Section: Discussionmentioning

confidence: 86%

“…The main aim of the study, was to construct a single span footbridge made only of composite materials as one element in a single technological process [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Dynamic tests of composite footbridge segment – experimental and numerical studies

et al. 2019

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“…However, attention should be paid to the fact that the isotropic constitutive material modelling of traditional bridge analysis needs to be replaced by orthotropic constitutive material modelling. The finite element (FE) model should be calibrated against the results gathered during field testing of an actual bridge superstructure under dynamic load following the well-established and proved procedure [14,15].…”

Section: Discussionmentioning

confidence: 99%

Dynamic performance of a vehicular bridge with lightweight FRP composite structural elements

Siwowski

2019

MATEC Web Conf.

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The lightweight nature and low stiffness of fibre reinforced polymer (FRP) structures combined with low material damping may lead to excessive structural vibration and may increase the dynamic amplification of deformations and stresses in FRP bridge structures. The paper provides a short review on dynamic characterization of existing vehicular bridge superstructures madeof FRP structural components. Against the backdrop of a worldwide review the paper presents a field study on the dynamic characteristics of the hybrid FRP – concrete bridge superstructure recently built in Poland. The dynamic amplification factor, the first natural frequencyand the damping ratio were experimentally determined in static and dynamic load tests and compared with the relevant codes and requirements. The paper concludes by summarizing challenges related to structural dynamics of bridge superstructures with FRP structural components.

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“…Nevertheless, details of the shell model are not described in this paper, because the article is focused mainly on non-destructive testing, application of SHM, and results measured by the used sensor networks. A full description of the shell model, as well as considerations on choice of the appropriate approach to model such a bridge are available in references [33,34] and therefore we do not repeat them here.…”

Section: Description Of the Analyzed Bridge-structural Solution Matementioning

confidence: 99%

“…But the vibration monitoring system was still able to identify some natural frequencies of the structure. The natural frequencies analysis were limited to 40 Hz, due to numerical analysis results (see reference [34]), which showed that the basic structural characteristics fall within this range. The Fast Fourier Transform was obtained automatically with its own system continuously analyzing the recorded signal.…”

Section: Ambient Testingmentioning

confidence: 99%

Short and Long Term Measurements in Assessment of FRP Composite Footbridge Behavior

2020

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The paper presents application of different sensors for the purpose of short and long term measurements, as well as a structural health monitoring (SHM) system to assess the behavior of a novel fiber reinforced plastics (FRP) composite footbridge. The aim is to present a thorough and concise description of these sensors networks and results gathered with their aid during in situ measurement of strains, displacements, and vibrations, as only a few works are available in this field. The bridge geometry, material solutions, and properties are described at first. Then the measurement devices composing the system and subsystems of sensors are elaborated on. Subsequently, the bridge research program is described and the results are shown and discussed. Finally, it is concluded that the use of selected sensors is helpful in assessment of the behavior of the novel structure, and moreover in validation of its numerical models. The collected data confirmed many assumptions made during the bridge design process and allowed us to accept it for exploitation.

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Modal properties identification of a novel sandwich footbridge – Comparison of measured dynamic response and FEA

Cited by 49 publications

References 39 publications

Dynamic tests of composite footbridge segment – experimental and numerical studies

Dynamic tests of composite footbridge segment – experimental and numerical studies

Dynamic performance of a vehicular bridge with lightweight FRP composite structural elements

Short and Long Term Measurements in Assessment of FRP Composite Footbridge Behavior

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