Comparison of Modelling Approaches to Analyzing Masonry Arch Bridges

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F18%3A00329098" target="_blank" >RIV/68407700:21110/18:00329098 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.masonry.org.uk/downloads/s02-474-comparison-of-modelling-approaches-to-analyzing-masonry-arch-bridges" target="_blank" >https://www.masonry.org.uk/downloads/s02-474-comparison-of-modelling-approaches-to-analyzing-masonry-arch-bridges</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Comparison of Modelling Approaches to Analyzing Masonry Arch Bridges

Popis výsledku v původním jazyce

Analytical methods for masonry arch structures have undergone significant development over the past few decades. Rigid-block and finite element analyses have largely supplanted earlier elastic-beam and graphic statics techniques. These modern analysis techniques are thought to provide better representation of arch structures. However, their range of applicability and conservativeness are still not well understood. The purpose of this paper is to compare various analysis techniques, evaluating the results from the point of view of structural response, modelling efficiency, and uncertainty in the input parameters. The techniques considered include limit analysis “by hand”, rigid-block analysis, finite element analysis using a smeared crack model, and finite element analysis using a discrete crack model. This paper is based upon a case study of a 19th-century stone masonry arch bridge in Troy, NY, USA. In 1986, the bridge underwent a significant intervention in which the infill and spandrel walls were removed and replaced. At the time, the bridge was rated using a model consisting of a series of elastic beam elements. The results of that analysis are compared with the analyses above. Based on these results, conclusions and recommendations for further study are developed.

Název v anglickém jazyce

Comparison of Modelling Approaches to Analyzing Masonry Arch Bridges

Popis výsledku anglicky

Analytical methods for masonry arch structures have undergone significant development over the past few decades. Rigid-block and finite element analyses have largely supplanted earlier elastic-beam and graphic statics techniques. These modern analysis techniques are thought to provide better representation of arch structures. However, their range of applicability and conservativeness are still not well understood. The purpose of this paper is to compare various analysis techniques, evaluating the results from the point of view of structural response, modelling efficiency, and uncertainty in the input parameters. The techniques considered include limit analysis “by hand”, rigid-block analysis, finite element analysis using a smeared crack model, and finite element analysis using a discrete crack model. This paper is based upon a case study of a 19th-century stone masonry arch bridge in Troy, NY, USA. In 1986, the bridge underwent a significant intervention in which the infill and spandrel walls were removed and replaced. At the time, the bridge was rated using a model consisting of a series of elastic beam elements. The results of that analysis are compared with the analyses above. Based on these results, conclusions and recommendations for further study are developed.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

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Návaznosti

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů