Experimental frequencies and damping ratios for historical masonry arch bridges

Bayraktar, Alemdar; Türker, Temel; Altunışık, Ahmet Can

doi:10.1016/j.conbuildmat.2014.10.044

Cited by 77 publications

(27 citation statements)

References 55 publications

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“…Recently, many authors have devoted considerable attention to the dynamic assessment of ancient masonry bridges [Aoki et al 2007, Bayraktar et al 2009, Bayraktar et al 2015, Boscato et al 2010, Giof-fré et al 2008, Perez-Garcia et al 2011, Sevim et al 2011. In this context, the present paper reports on a vibration measurement campaign on the Maddalena Bridge, also known as "Ponte del Diavolo", in Borgo a Mozzano, near Lucca (Figure 1).…”

Section: Introductionmentioning

confidence: 90%

Ambient vibration recording on the Maddalena Bridge in Borgo a Mozzano (Italy): data analysis.

Azzara

Falco

Girardi

et al. 2017

Annals of Geophysics

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This paper reports on a vibration measurements campaign performed on the medieval Maddalena Bridge, also known as the "Devil's Bridge", in Borgo a Mozzano (Italy), one of the most fascinating in Italy. This 11 th century masonry bridge, supported by four circular arcades, crosses the Serchio River for about one hundred meters. Information on the dynamic response of the structure have been obtained through a wholly nondestructive technique, by measuring the environmental vibrations affecting the structures. A monitoring system has been fitted on the external surface of the bridge in order to evaluate its dynamic response to vibrations originating in the adjacent railway and two nearby roads. The natural frequencies and mode shapes of the structure and the corresponding damping ratios have been obtained by analyzing the recorded data using different techniques of Operational Modal Analysis. Lastly, a finite-element model of the bridge has been calibrated to fit the experimental data. Figure 15. The eighth mode shape calculated via the NOSA-ITA-CA code.

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Section: Introductionmentioning

confidence: 90%

Ambient vibration recording on the Maddalena Bridge in Borgo a Mozzano (Italy): data analysis.

Azzara

Falco

Girardi

et al. 2017

Annals of Geophysics

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“…Then, incorporating the stiffness and geometry of the bridge, they calculated the capacity of this bridge (~ 14.5 ton) through forming the first hinge. Bayraktar et al [9], claiming that the numerical study of masonry bridges cannot be accurate enough by itself, installed some resonance-sensitive accelerometer and conducted some field tests. They selected eight masonry bridges made of stone and mortar with different ages and locations and calculated their dynamic properties using the modal analysis.…”

Section: Introductionmentioning

confidence: 99%

Three-dimensional Modeling of an Old Masonry Bridge and Assessing Its Current Capacity

Sotoudeh

Jahangiri

Ranjbarnia

et al. 2020

Period. Polytech. Civil Eng.

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Masonry bridges are among the main structures built along the road and railway routes. These structures are generally old and have historical value. Considering the increased axial load and passing speed from these bridges, an in-depth study of these structures and their potential is of paramount importance. In the present study, an old masonry arch bridge located in 475 km of Western Iranian railway is investigated. For the detailed modeling of this structure, a three-dimensional finite element method (3DFEM) was implemented to take into account the details of the bridge and the train passing over it. The developed model was calibrated and validated using the dynamic field test results. The obtained results showed that the increase in the axial load and train speed over the bridge must be done carefully because exceeding the travel speed of 90 km/h and increasing the axial load from 20 to 30 ton makes serious problems in the bridge and interrupts its performance. Furthermore, it was found that the adequacy factor of the bridge under the standard load of LM71 is over 2.

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“…e natural frequency, mode shape, and damping ratio of a bridge can be estimated by running a modal analysis [3]. e numerical model can be improved using a modal analysis and a comparison with experimental data [4,5] to track the change in the dynamic parameters of a structure [6][7][8][9][10][11], which is a nondestructive technology for bridge detection.…”

Section: Introductionmentioning

confidence: 99%

Field Test and Numerical Analysis of In‐Service Railway Bridge

Liu

Hou

Fei

et al. 2020

Advances in Materials Science and Engineering

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Field tests and numerical simulations are combined in this paper. Cross-sectional dimension measurements, dynamic performance tests, and forced vibration tests were performed on the NO·40 beam bridge of the Xin-Tai Railway. By comparing the test results with the specifications, the current service status of the bridge was evaluated, and the basis for subsequent correction and verification models was provided. A dynamic coupled finite element model of the passenger-freight-cable-track-bridge was established considering the degree of bridge damage (0%∼50%) and the track irregularity, and the model simulation results for the Xin-Tai Railway NO·40 bridge were measured. The results are compared to verify the correctness of the model. The results show that the damage to the bridge will affect the vertical displacement response and the safety stability of the train. The vertical displacement response of the bridge midspan is twice that of the bridge performance. When the damage level of the bridge is 30%, the passenger and freight trains exceed the safety warning limit, which should cause concern.

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Experimental frequencies and damping ratios for historical masonry arch bridges

Cited by 77 publications

References 55 publications

Ambient vibration recording on the Maddalena Bridge in Borgo a Mozzano (Italy): data analysis.

Ambient vibration recording on the Maddalena Bridge in Borgo a Mozzano (Italy): data analysis.

Three-dimensional Modeling of an Old Masonry Bridge and Assessing Its Current Capacity

Field Test and Numerical Analysis of In‐Service Railway Bridge

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