Incremental dynamic analysis of small to medium spans plain concrete arch bridges

Moazam, Adel Mahmoudi; Hasani, Nemat; Yazdani, Mahmoud

doi:10.1016/j.engfailanal.2018.04.027

Cited by 21 publications

(5 citation statements)

References 41 publications

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“…The fragility analysis method is widely used to study the seismic performance of structures. Yazdani et al [9,10] evaluated the seismic performance of plain concrete arch bridges under near-field and far-field earthquakes using an incremental dynamic analysis method. Chen et al [11] revealed the potential failure modes of concrete gravity dams through incremental dynamic analysis.…”

Section: Introductionmentioning

confidence: 99%

Fragility Analysis of Wind-Induced Collapse of a Transmission Tower Considering Corrosion

Liu

Yan

2022

Buildings

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To investigate the variation law of the wind-resistant performance of transmission towers during their operation, this paper proposes an evaluation method for the wind resistance of the transmission tower considering corrosion, and a 220-kV transmission tower is analyzed as an example. Considering the uncertainty of the material and geometric parameters, the wind-induced collapse of the transmission tower was analyzed, and the collapse wind speeds were obtained via pushover and incremental dynamic analyses. In addition, the sensitivity of the transmission tower to various parameters was analyzed. Based on the existing meteorological and corrosion data, corrosion prediction models were established using a back-propagation (BP) artificial neural network, and the mean relative error between the predicted and measured values of the test samples was 8.91%. On this basis, the corrosion depth of the tower members in the four regions was predicted, and the fragility of the transmission tower was analyzed considering the effects of corrosion and strong winds. The results show that the collapse wind speed of the transmission tower is most significantly affected by the thickness of the angle steel, followed by the elastic modulus and yield strength, and is less affected by the width of the angle steel. When the exposure time was 25 years, the wind-resistant performance of transmission towers in regions with severe acid rain and coastal industrial regions decreased by 10% to 20%. With an increase in exposure time, the failure mode of the transmission tower tended to be brittle failure.

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Section: Introductionmentioning

confidence: 99%

Fragility Analysis of Wind-Induced Collapse of a Transmission Tower Considering Corrosion

Liu

Yan

2022

Buildings

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“…Another interesting line of research is the study of the behaviour of masonry bridges subjected to certain external actions that may compromise their stability. In particular, the analysis of recent collapses has shown that masonry bridges are particularly vulnerable to the phenomena that cause the failure of their supports [17,26,29,[38][39][40][41][42][43][44][45][46] and to high intensity seismic actions [47][48][49][50][51][52][53][54][55][56][57], as evidenced by the collapse of the Claro Bridge [58] during the 2010 Maule, Chile earthquake. In recent years, numerous studies have been developed to investigate the structural implications of foundation settlement on the bearing capacity of the bridge.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear seismic analysis of masonry bridges under multiple geometric and material considerations: Application to an existing seven-span arch bridge

2021

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“…With this need in mind, in recent years, different calculation methods and guidelines (e.g., UIC guideline) 1 for the evaluation of the ultimate (ULS) and serviceability limit states (SLS) of masonry bridges have been developed. Among the available methods for the structural analysis of masonry bridges, it is possible to find: simplified methods (Zhang et al, 2018), numerical method for assess the seismic capacity (Pelà et al, 2013;Zampieri et al, 2014Zampieri et al, , 2015aSarhosis et al, 2016;Mahmoudi Moazam et al, 2018;Marefat et al, 2019), methods based on the limit analysis (Basilio et al, 2014;Chiozzi et al, 2017;Bertolesi et al, 2018), analysis strategies able to take into account the settlement of the supports (Galassi et al, 2018a,b;Zampieri et al, 2018aZampieri et al, ,b, 2019 or geometry uncertainties (Cavalagli et al, 2017), macro-element models (Cannizzaro et al, 2018;D'Altri et al, 2019), and methods based on finite element modeling (FEM) (Brencich and Sabia, 2008;Costa et al, 2016;Scozzese et al, 2019), discrete element modeling (DEM) (Sarhosis et al, 2016(Sarhosis et al, , 2019Forgács et al, 2017Forgács et al, , 2018Stockdale et al, 2019) or a combination of both (Milani and Lourenço, 2012).…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of an FRP-Strengthened Masonry Arch Bridge

Simoncello

Zampieri

González-Libreros

et al. 2020

Front. Built Environ.

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Historical masonry arch bridges are a fundamental part of the road and railway networks in Europe. Very often, due to factors such as lack of maintenance, increase of traffic loads, etc., these structures need interventions in order to guarantee their adequate structural performance. For this reason, an important research effort has been devoted in previous decades to study the behavior of masonry arches and to identify innovative techniques able to increase their ultimate capacity, such as fiber reinforced polymer (FRP) composites. In this paper, the results of an experimental campaign carried out on masonry arches strengthened with one FRP layer applied at the structure intrados are used to calibrate a numerical analysis model. Then, the model is used to predict the contribution that this type of strengthening would have had on the well-known Prestwood Bridge. The numerical results show that the hypothetical intervention of the Prestwood Bridge would imply an increase in the ultimate load of the structure, although it would be significantly lower than that usually obtained for the case of arches tested in laboratory.

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Incremental dynamic analysis of small to medium spans plain concrete arch bridges

Cited by 21 publications

References 41 publications

Fragility Analysis of Wind-Induced Collapse of a Transmission Tower Considering Corrosion

Fragility Analysis of Wind-Induced Collapse of a Transmission Tower Considering Corrosion

Nonlinear seismic analysis of masonry bridges under multiple geometric and material considerations: Application to an existing seven-span arch bridge

Numerical Analysis of an FRP-Strengthened Masonry Arch Bridge

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