Seismic vulnerability of historic masonry buildings: a case study in the center of Lucca

Historic masonry buildings experience a high seismic vulnerability: innovative intervention strategies for strengthening, based on the use of fibre-based composite materials are gradually spreading. In particular, the coupling of fibre-based materials with mortar layers (Fibre Reinforced Mortar technique - FRM) evidenced a good chemical and mechanical compatibility with the historical masonry and proved to be effective for the enhancement of both in-plane and out-of-plane performances of masonry, contrasting the opening of cracks and improving both resistance and ductility. The resistant mechanisms that arise in FRM strengthened masonry walls subjected to in-plane horizontal actions are analyzed in the paper and a practical design approach to evaluate their performances is illustrated, evidencing the dominant collapse mode at the varying of the masonry characteristics. Some masonry walls are analyzed numerically and analytically, as “case study”.

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An Improved Seismic Vulnerability Assessment Approach for Historical Urban Centres: The Case Study of Campi Alto di Norcia, Italy

Applied Sciences ◽

10.3390/app11020849 ◽

2021 ◽

Vol 11 (2) ◽

pp. 849

Author(s):

Federico Romis ◽

Silvia Caprili ◽

Walter Salvatore ◽

Tiago M. Ferreira ◽

Paulo B. Lourenço

Keyword(s):

Seismic Vulnerability ◽

Structural Characteristics ◽

Vulnerability Index ◽

Masonry Buildings ◽

Seismic Behaviour ◽

Priority List ◽

Historic Masonry ◽

Assessment Approach ◽

Seismic Damage Assessment

Seismic damage assessment is an extraordinary opportunity to evaluate the reliability of vulnerability and risk methodologies applied to historic masonry buildings, giving the possibility of enhancing and optimising mitigation and retrofit strategies. Vulnerability index methodologies are flexible and powerful tools for assessing seismic vulnerability on the urban scale, providing a first screening of the critical issues present in masonry buildings and a possible priority list for the following retrofit operations. Such approaches account for the buildings’ different structural characteristics, directly or indirectly influencing their seismic behaviour and measured through different weights and classes finally providing a vulnerability index. In this paper, we show the application of three well-known methodologies to Campi Alto di Norcia’s medieval city in Valnerina (Italy) stroke by the earthquakes of 24 August and 30 October 2016. The methodologies’ reliability is assessed, based on the observation of real seismic consequences and damages on the masonry buildings, and an optimised methodology is then proposed for the considered case study.

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An Interdisciplinary Approach for the Seismic Vulnerability Assessment of Historic Masonry Buildings: The Case Study of the Ex Jesuits College in Amantea (Italy)

RILEM Bookseries - Structural Analysis of Historical Constructions ◽

10.1007/978-3-319-99441-3_134 ◽

2019 ◽

pp. 1247-1256 ◽

Cited By ~ 1

Author(s):

Renato S. Olivito ◽

Saverio Porzio ◽

Alessandro Tedesco

Keyword(s):

Vulnerability Assessment ◽

Seismic Vulnerability ◽

Interdisciplinary Approach ◽

Masonry Buildings ◽

Seismic Vulnerability Assessment ◽

Historic Masonry

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Seismic vulnerability of traditional masonry building a case study of Byasi, Bhaktapur

Journal of Science and Engineering ◽

10.3126/jsce.v4i0.22377 ◽

2017 ◽

Vol 4 ◽

pp. 24-30

Author(s):

Shyam Sundar Basukala ◽

Prem Nath Maskey

Keyword(s):

Seismic Vulnerability ◽

Linear Time ◽

Fragility Curves ◽

Time History ◽

Masonry Building ◽

Masonry Buildings ◽

Masonry Structures ◽

Rapid Visual Screening ◽

Visual Screening

Historic buildings of Nepal are mainly constructed from masonry structure. Since masonry structures are weak in tension which leads to the failure of structure. So, to avoid possible damage in environment lives and property it is urgent to conduct vulnerability assessments. Seismic vulnerability of historic masonry buildings constructed in Bhaktapur at Byasi area is carried out for the case study. Five load bearing masonry buildings were selected out of 147 buildings considering opening percentage, storey and type of floor for modeling in SAP 2000 V10 Various methods of rapid visual screening (FEMA 154, EMS 98) are used to determine the vulnerability of the selected building. The Selected Building response is carried out by linear time history analysis. The seismic vulnerability of masonry structures is determined in terms of fragility curves which represent the probability of failure or damage due to various levels of strong ground motions for different damage state slight, moderate, extensive and collapse. From the result of Rapid Visual Screening (RVS) and Fragility curves of the buildings it is found that whole, buildings are found vulnerable from future earthquake.

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Seismic Vulnerability of Historic Centers

Handbook of Research on Seismic Assessment and Rehabilitation of Historic Structures - Advances in Civil and Industrial Engineering ◽

10.4018/978-1-4666-8286-3.ch001 ◽

2015 ◽

pp. 1-29 ◽

Cited By ~ 2

Author(s):

Luigia Binda ◽

Giuliana Cardani

Keyword(s):

Mathematical Models ◽

Critical Review ◽

Seismic Vulnerability ◽

Residential Buildings ◽

Analytical Models ◽

Masonry Buildings ◽

Historic Masonry ◽

Long Time ◽

Set Up ◽

Minor Architecture

A methodology of investigation and diagnosis on the built patrimony of historic centres in seismic areas is presented with the aim of collecting an extensive knowledge on the structural typologies and behaviour of historic masonry buildings. This investigation is also the base for the prevention and/or repair of damages caused by earthquakes. Small historic centres or residential buildings in larger centres have been considered for long time as “minor architecture”, but they are meaningful testimonies of the local cultural heritage and express the evolution of a society and of its cultural identity. The results of the investigation carried out on different Italian historic centers, allowed also a critical review of the reliability of the analytical models and of the effectiveness of the repair techniques applied in the past decades. The guidelines emerging from the research results are here presented. A “minimal” diagnostic investigation program is also suggested, in order to support the designers in their projects and to set up appropriate mathematical models to study the vulnerability of the structures.

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Improving the energy-efficiency of historic masonry buildings. A case study: A minor centre in the Abruzzo region, Italy

Energy and Buildings ◽

10.1016/j.enbuild.2014.05.047 ◽

2014 ◽

Vol 80 ◽

pp. 415-423 ◽

Cited By ~ 41

Author(s):

Pierluigi De Berardinis ◽

Marianna Rotilio ◽

Chiara Marchionni ◽

Avi Friedman

Keyword(s):

Energy Efficiency ◽

Masonry Buildings ◽

Historic Masonry ◽

Abruzzo Region ◽

A Minor

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Seismic behavior and assessment of masonry heritage structures. Needs in engineering judgement and education

RILEM Technical Letters ◽

10.21809/rilemtechlett.2018.76 ◽

2019 ◽

Vol 3 ◽

pp. 114-120 ◽

Cited By ~ 2

Author(s):

Paulo Lourenco ◽

Georgios Karanikoloudis

Keyword(s):

Seismic Vulnerability ◽

Structural Response ◽

Nonlinear Effects ◽

Holistic Approach ◽

Masonry Buildings ◽

Structural Elements ◽

Destructive Testing ◽

Historic Masonry ◽

Key Aspects ◽

Building Condition

Built cultural heritage is at risk due to manmade and natural hazards. The seismic vulnerability of ancient masonry buildings is particularly difficult to assess and requires specialized technical skills. Key aspects are the materials properties and nonlinear effects, the morphology of the structural elements, the connections between structural elements, the stiffness of horizontal diaphragms and the building condition. This paper addresses the holistic approach recommended for the structural assessment of historic masonry buildings and the developments in the areas of inspection, diagnosis, monitoring and non-destructive testing, with applications to emblematic monuments. The methodology covers a step-by-step approach, based on historical research, an inductive study on similar structures, and a range of surveying, experimental, analytical and numerical tools, all aimed at evaluating the structural response and defining safety levels. Attention is given to the need of conservation engineering background of professionals and ways to attain this goal.

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