Modelling a Masonry Arch Bridge – Comparing Methods

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F19%3A00339401" target="_blank" >RIV/68407700:21110/19:00339401 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.masonry.org.uk/downloads/modelling-a-masonry-arch-bridge-comparing-methods" target="_blank" >https://www.masonry.org.uk/downloads/modelling-a-masonry-arch-bridge-comparing-methods</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Modelling a Masonry Arch Bridge – Comparing Methods

Popis výsledku v původním jazyce

Masonry arch bridges are used in highway and rail systems throughout the world. Many of these are more than a century old, and experience much higher live loads than originally designed. Due to age and new live load criteria, it is often necessary to evaluate the existing load capacity. Despite masonry’s wide use, it is only recently that scientific approaches to design and analysis have been developed, but there is a lack of consensus on the conservativeness, simplifications used, and modelling rigor required. The primary purpose of this study is to compare various analysis methods, evaluating the results from the point of view of structural response, modelling efficiency, and variations in the inputs and assumptions used. The techniques considered include limit analysis using hand calculations, rigid-block analysis, finite element analysis using a smeared crack model, and finite element analysis using a discrete crack model. To demonstrate the methods, a 19th-century two-span stone masonry arch in Troy, NY, USA is used as a case study. The bridge underwent a significant intervention in 1986 in which the infill and spandrel walls were removed and replaced. At the time, the bridge was rated by idealizing the bridge as a series of elastic beams. The compressive stress and percent contact area were limited to allowable design values. A secondary purpose of this research was to compare the results of the elastic analysis with the results of the modern analyses, and to provide an updated load rating.

Název v anglickém jazyce

Modelling a Masonry Arch Bridge – Comparing Methods

Popis výsledku anglicky

Masonry arch bridges are used in highway and rail systems throughout the world. Many of these are more than a century old, and experience much higher live loads than originally designed. Due to age and new live load criteria, it is often necessary to evaluate the existing load capacity. Despite masonry’s wide use, it is only recently that scientific approaches to design and analysis have been developed, but there is a lack of consensus on the conservativeness, simplifications used, and modelling rigor required. The primary purpose of this study is to compare various analysis methods, evaluating the results from the point of view of structural response, modelling efficiency, and variations in the inputs and assumptions used. The techniques considered include limit analysis using hand calculations, rigid-block analysis, finite element analysis using a smeared crack model, and finite element analysis using a discrete crack model. To demonstrate the methods, a 19th-century two-span stone masonry arch in Troy, NY, USA is used as a case study. The bridge underwent a significant intervention in 1986 in which the infill and spandrel walls were removed and replaced. At the time, the bridge was rated by idealizing the bridge as a series of elastic beams. The compressive stress and percent contact area were limited to allowable design values. A secondary purpose of this research was to compare the results of the elastic analysis with the results of the modern analyses, and to provide an updated load rating.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Masonry International

ISSN

0950-2289

e-ISSN

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Svazek periodika

32

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

23-34

Kód UT WoS článku

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EID výsledku v databázi Scopus

2-s2.0-85072038830