Assessment of a concrete arch bridge using static and dynamic load tests

Caglayan, Ozden; Özakgül, Kadir; Tezer, Ovunc

doi:10.12989/sem.2012.41.1.083

Cited by 40 publications

(27 citation statements)

References 9 publications

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“…Numerical studies of bridges and other stone and concrete structures of historical value have been performed in [8][9][10][11][12]. In these studies numerical techniques addressing the interaction of mortar and stone blocks or block-block non-linear contact were also explored.…”

Section: Introductionmentioning

confidence: 99%

On the Assessment of the Plaka Bridge Collapse Using Non-Linear Analysis Preventable or Doomed?

Simos¹,

Manos²,

Kozikopoulos³

et al. 2017

Proceedings of the 6th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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The collapse of the historic Plaka Stone Bridge due to extreme flooding and in particular the pinpointing of the causes or possibly weak structural points that led to the structural failure is studied using high fidelity, three-dimensional non-linear numerical analysis and sensitivity studies. Specifically, the potential of a number of postulated scenarios in initiating failure and leading to the eventual collapse of the bridge are explored aided by sensitivity analyses relying on non-linear finite element modelling and is augmented by actual material properties of the structural elements deduced from laboratory tests following the collapse (i.e. stone and mortar). Presented in detail is the scenario which appears to closely replicate the mode of actual bridge failure observed (damage extend and debris distribution) and deemed by the authors to be most likely sequence of events that occurred. This scenario postulates the undermining of the central pier by support or shear section failure leading to large deformation and displacements on the lower part of the pier eventually leading to shear failure of the primary arch. Based on the failure mode predicted by simulation and corroborated with observed damage the vulnerability of the Plaka Bridge to this "beyond design basis event" even for an uncompromised structure is assessed by asking the question whether any preventive maintenance and upkeep could have saved this particular bridge or that its collapse was beyond human intervention.

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Section: Introductionmentioning

confidence: 99%

On the Assessment of the Plaka Bridge Collapse Using Non-Linear Analysis Preventable or Doomed?

Simos¹,

Manos²,

Kozikopoulos³

et al. 2017

Proceedings of the 6th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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“…A number of methods have been proposed for the evaluation of load carrying capacity of masonry bridges, including empirical methods such as MEXE [7], yield design based methods [8,9], fibre beam elements method [10], and those employing a scaled model of the bridge [11,12]. Recently, several studies have successfully been used for assessing the load carrying capacity of masonry bridges by 2D and 3D finite elements models [13][14][15][16][17][18][19]. Caligyan et al [17] conducted static and dynamic tests on a concrete arch bridge, and used the test results to calibrate a 3D model of the bridge.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, several studies have successfully been used for assessing the load carrying capacity of masonry bridges by 2D and 3D finite elements models [13][14][15][16][17][18][19]. Caligyan et al [17] conducted static and dynamic tests on a concrete arch bridge, and used the test results to calibrate a 3D model of the bridge. Marefat et al [15] conducted static tests on a decommissioned masonry railway arch bridge.…”

Section: Introductionmentioning

confidence: 99%

Assessing safety of a railway stone arch bridge by experimental and numerical analyses

Ataei¹,

Miri²,

Jahangiri³

2017

JCE

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Assessing safety of a railway stone arch bridge by experimental and numerical analyses Bridge response to predefined loading schemes is described and recorded by instrumenting the structure with deflectometers and accelerometers. Test results suggest that although vertical deflections of mid-spans are almost constant for all crossing speeds, the root mean square of acceleration values are positively correlated with the crossing speed. Field test results are then used to calibrate and verify the 3D finite element model of the bridge, and the latter is employed to assess behaviour of the structure at the serviceability limit state. Ocjena sigurnosti kamenog lučnog željezničkog mosta eksperimentalnim i numeričkim analizama U radu je opisan odziv mosta na unaprijed definirana opterećenja, a određen je pomoću deflektometara i akcelerometara koji su u tu svrhu postavljeni na konstrukciju. Rezultati ispitivanja pokazuju da su vrijednosti korijena srednje kvadratne akceleracije pozitivno usklađene s brzinom prolaska, iako su vertikalni progibi na sredini raspona uglavnom konstantni pri svim brzinama prolaska. Rezultati dobiveni mjerenjima na terenu korišteni su za verifikaciju prostornog modela mosta, koji je korišten za ocjenu ponašanja konstrukcije pri graničnom stanju uporabivosti. Bewertung der Sicherheit der gemauerten Eisenbahn-Bogenbrücke durch experimentelle und numerische AnalysenIn der Arbeit wird die Reaktion der Brücke auf vordefinierte Belastungen beschrieben. Diese Reaktion wurde anhand von Deflektometern und Beschleunigungssensoren gemessen. Die Untersuchungsergebnisse zeigen, dass die Werte der Wurzel der mittleren quadratischen Beschleunigung mit der Durchgangsschnelligkeit positiv übereinstimmen, obwohl die vertikalen Verschiebungen in der Mitte der Breitspanne bei allen Durchgangsgeschwindigkeiten vorwiegend konstant sind. Die Messergebnisse vor Ort wurden für die Verifizierung eines Brückenraummodells verwendet, das für die Beurteilung des Verhaltens der Konstruktion beim Grenzzustand der Gebrauchstauglichkeit eingesetzt wurde. Schlüsselwörter:gemauerte Bogenbrücke, Methode der finiten Elemente, Grenzzustand der Gebrauchstauglichkeit, Grenzzustand der Tragfähigkeit

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“…Recently, a number of studies have successfully assessed the load-carrying capacity of masonry bridges by 2D and 3D nite-element models [7][8][9][10][11][12]. Caligyan et al [11] conducted static and dynamic tests on a concrete arch bridge and used test results to calibrate the 3D model of the bridge.…”

Section: Introductionmentioning

confidence: 99%

“…Caligyan et al [11] conducted static and dynamic tests on a concrete arch bridge and used test results to calibrate the 3D model of the bridge. Marefat et al [9] conducted static tests on a decommissioned masonry railway arch bridge.…”

Section: Introductionmentioning

confidence: 99%

Dynamic load testing of a railway masonry arch bridge: A case study of Babak Bridge

2017

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Abstract. Health monitoring of masonry bridges is vital due to their long life in service and an increasing need for higher axle loads. Results of feasibility study of applying an increased axle load of 25 tons to an old masonry bridge are presented in this paper. Babak Bridge is located in north western zone of Iranian railway network and has been in service for more than 70 years. It consists of stone masonry blocks, has three long spans of 21.5 m, 7 spans of 10 m, and a total length of 270 m. Response of the bridge subjected to prede ned train loading by 15 sensors, including de ection meters, accelerometers, and strain gauges, is recorded. A total of 37 tests are carried out on Babak Bridge, and the results are used to calibrate the nite-element model of the bridge, which is developed by Abaqus software. The numerical model is then used to determine the weak spots of bridge due to subjection of higher axle loads for a possible strengthening procedure. Ultimate load-carrying capacity of the bridge is also assessed by Ring software, which suggests a minimum adequacy factor of 1.25 for an axle load of 25 tons.

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Assessment of a concrete arch bridge using static and dynamic load tests

Cited by 40 publications

References 9 publications

On the Assessment of the Plaka Bridge Collapse Using Non-Linear Analysis Preventable or Doomed?

On the Assessment of the Plaka Bridge Collapse Using Non-Linear Analysis Preventable or Doomed?

Assessing safety of a railway stone arch bridge by experimental and numerical analyses

Dynamic load testing of a railway masonry arch bridge: A case study of Babak Bridge

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