Seismic Behaviour Analysis of Classes of Masonry Arch Bridges

The paper describes a simplified methodology for the evaluation of the seismic retrofit intervention types to be performed on clusters of multi-span masonry arch bridges, on the basis of the main bridges’ geometrical characteristics. The structural behaviour of the analysed sample bridges has been evaluated in their main directions highlighting the potential local and global vulnerabilities and the related retrofit intervention typologies that need to be selected. The main aim of this study is to take the form of an useful tool for the identification of the best retrofit strategies for each masonry bridge structure in function of its geometrical characteristics and thus planning rationally the management of these bridges belonging to railway networks.

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Calculation Analysis of Strengthening Arch Bridge Structure Based on Release Energy Method

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.71-78.1732 ◽

2011 ◽

Vol 71-78 ◽

pp. 1732-1735

Author(s):

Qing Ping Jin ◽

Xian Bao Wang ◽

Xue Jun Li

Keyword(s):

Energy Method ◽

Carrying Capacity ◽

Safety Margin ◽

Bridge Structure ◽

Masonry Arch ◽

Arch Bridge ◽

Before And After ◽

Arch Bridges ◽

Calculation Analysis ◽

Masonry Arch Bridge

The arch bridges were used widely for the good performance under the pressure in China. It was very sensitive to some factors as temperature , settlement etc so that the arch bridges occurred the disease, carrying capacity reduction or even structure destruction etc.In the paper, based on the characteristics of masonry arch bridges, reinforcement method was analyzed, according to the situation of a masonry arch bridge, release energy method was applied to strengthening project. By comparing the stress and the strain before and after the strengthening project, some conclusions could be drawn that the bridge structure carrying capacity had been raised, the energy accumulated in the bridge structure was released, the structure safety margin was improved.

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Inspection and Assessment of Masonry Arch Bridges: Ivanjica Case Study

Sustainability ◽

10.3390/su132313363 ◽

2021 ◽

Vol 13 (23) ◽

pp. 13363

Author(s):

Neda M. Sokolović ◽

Milica Petrović ◽

Ana Kontić ◽

Suzana Koprivica ◽

Nenad Šekularac

Keyword(s):

Collapse Mechanism ◽

Mechanism Analysis ◽

Structural Behaviour ◽

Masonry Arch ◽

Element Analysis ◽

Historical Structures ◽

3D Simulation Model ◽

Arch Bridges ◽

Longitudinal Cracks

The importance of masonry arch bridges as a traffic network element calls for a thorough analysis focused on both structural stability and loading capacity of these historical structures, considering the usage of these bridges in contemporary traffic conditions. This paper focuses on the analysis of longitudinal cracks in a single span masonry arch bridge to evaluate its influence on structural behaviour of the system. As longitudinal cracks do not necessarily present an inevitable collapse mechanism, analysis of the causes is crucial for evaluating the serviceability and functionality of the bridge investigated. The methodology is based on the following: literature review, observation of the stone bridge in Ivanjica, geological testing of the site, geophysical testing of the bridge, laboratory testing of mechanical characteristics of stone used for the bridge construction and biological analysis of the samples of implemented materials on the bridge. Finite element analysis of the bridge was conducted to define the causes of the longitudinal cracks. The 3D simulation model was based on the data collected through observation and experimental analysis. This paper provides extensive research on a single span masonry bridge, examining how different deterioration mechanisms, in conjunction, can lead to the appearance of cracks in masonry arch bridges and provide remedial measures accordingly.

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