Experimental and Numerical Investigations of a Segmental Masonry Arch Subjected to Horizontal Settlements

Masciotta, Maria Giovanna; Brigante, Daniele; Barontini, Alberto; Pellegrini, Daniele; Fabbrocino, Giovanni; Padovani, Cristina; Girardi, Maria

doi:10.1007/978-3-030-29227-0_43

Cited by 3 publications

(1 citation statement)

References 7 publications

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“…It has a nominal span of 1900 mm, a springing angle of 40°, a nominal net rise of 430 mm and radial thickness of a 75 mm. Two lime bags of 25 kg each are symmetrically placed on the extrados to simulate the effect of backfill material [12,13].…”

Section: A Masonry Arch As Case Studymentioning

confidence: 99%

Application of a Classification Algorithm to the Early-Stage Damage Detection of a Masonry Arch

Barontini¹,

Masciotta²,

Mendes³

et al. 2020

XI International Conference on Structural Dynamics

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The early-stage identification of structural damage still represents a relevant challenge in civil engineering. Localized damages if not readily detected can lead to disruption or even collapse, involving hazard to people and economical losses. Although the final goal of the identification is to localize and quantify the damage, a reliable discrimination between normal and abnormal states of the structure in the very early stage of the damage onset is not an easy task. In the field of Structural Health Monitoring (SHM) great attention has been paid to the development of damage detection methods based on continuous and automatic registration of the system response to unknown ambient inputs. The numerical algorithms exploited must be: (1) easy to implement and computationally inexpensive, eventually being embedded in the sensors; (2) as much independent on human decision as possible; (3) robust to the many sources of uncertainties affecting the monitoring; (4) able to detect small damage extents in order to provide an early warning; (5) suitable for the application in the case of few and sparse measurements collected only in the normal condition. The performance of a novel version of Negative Selection Algorithm, recently developed by the authors, is here analyzed with attention to these issues. The algorithm is tested against data collected on a segmental masonry arch built in the laboratory of the University of Minho and subject to progressive lateral displacement of one support.

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Section: A Masonry Arch As Case Studymentioning

confidence: 99%

Application of a Classification Algorithm to the Early-Stage Damage Detection of a Masonry Arch

Barontini¹,

Masciotta²,

Mendes³

et al. 2020

XI International Conference on Structural Dynamics

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Investigation of tie-rod connection types on stone masonry arches

Fırat

Kayabaşı

2022

Structures

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Desplazamiento horizontal límite en arcos de fábrica

Mutiloa¹,

Guamán

León

et al. 2021

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El nivel de seguridad de los arcos de fábrica se ve muy afectado por posibles desplazamientos que puedan producirse en sus arranques. Tales desplazamientos generan un incremento o una disminución de los empujes horizontales. Este proceso, que se retroalimenta, puede disminuir sensiblemente le seguridad de las estructuras y incluso llevarlas al colapso. A pesar de la importancia de este fenómeno, la bibliografía al respecto es escasa y principalmente enfocada a arcos de directriz circular. En este artículo se presenta una herramienta desarrollada para determinar el desplazamiento límite horizontal hacia el exterior de arcos de cualquier directriz considerando o no la existencia de un relleno. Además, se realiza un análisis paramétrico para estudiar el efecto de un desplazamiento impuesto para diferentes geometrías y varias relaciones canto/radio o canto/luz, lo cual lleva a la construcción de gráficas muy útiles para la práctica profesional. Finalmente, se aplica la metodología a un ejemplo real.

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Experimental and Numerical Investigations of a Segmental Masonry Arch Subjected to Horizontal Settlements

Cited by 3 publications

References 7 publications

Application of a Classification Algorithm to the Early-Stage Damage Detection of a Masonry Arch

Application of a Classification Algorithm to the Early-Stage Damage Detection of a Masonry Arch

Investigation of tie-rod connection types on stone masonry arches

Desplazamiento horizontal límite en arcos de fábrica

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