Classification and seismic fragility assessment of confined masonry school buildings

Vatteri, Ahsana Parammal; D’Ayala, Dina

doi:10.1007/s10518-021-01061-9

Cited by 13 publications

(2 citation statements)

References 61 publications

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“…However, the methodological approach is also applicable to other structural systems and materials. Indeed, a parallel study has been developed for masonry structures and details are available in Adhikari (2021), Vatteri & D'Ayala (2021 and GLOSI (The World Bank 2019). Fig.…”

Section: Proposed Methodology For the Simplified Vulnerability Assess...mentioning

confidence: 99%

A simplified component-based methodology for the seismic vulnerability assessment of school buildings using nonlinear static procedures: application to RC school buildings

Fernández

Liu

D’Ayala

et al. 2022

Bull Earthquake Eng

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Several earthquakes have affected school infrastructure, compromising the safety of students and all the educational community. These damages are not caused solely by the action of earthquakes, but also by the lack of adequate seismic design, deficient construction practices, and lack of regulations and normative to ensure an appropriate quality for infrastructure. Therefore, to analyze how is the expected infrastructure behavior in earthquakes, this study presents a simplified methodology for the seismic vulnerability assessment of school buildings. The methodology includes several components: data collection, the characterization of Index Buildings (IB), hazard definition, nonlinear numerical modeling of the structural response, seismic performance assessment and the vulnerability integration using a component-based approach. The novelty of the proposed methodology resides in the fact of its simplicity and robustness obtained by combining a simplified non-linear incremental static analysis together with a component-based vulnerability derivation methodology to assess the behavior of school buildings. This methodology is applied to a set of 11 Reinforced Concrete (RC) school building types representing common structural systems and seismic design levels. A number of sensitivity analyses are also carried out, varying the geometry, the foundation-soil flexibility, the mechanical properties of infill masonry walls, the non-structural elements and the analysis type, showing the versatility and reliability of the proposed methodology.

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Section: Proposed Methodology For the Simplified Vulnerability Assess...mentioning

confidence: 99%

A simplified component-based methodology for the seismic vulnerability assessment of school buildings using nonlinear static procedures: application to RC school buildings

Fernández

Liu

D’Ayala

et al. 2022

Bull Earthquake Eng

Self Cite

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show abstract

“…IB3 has better connections as well as confinement. More details of these confined masonry buildings can be found in [8]. Together with the functionality loss, the physical flood capacity estimates of the school buildings can be used for assessing education disruption at schools, through probabilistic approaches such as Bayesian networks [7].…”

Section: Introduction/backgroundmentioning

confidence: 99%

Flood capacity assessment of confined masonry school buildings for education disruption assessment

Vatteri

D’Ayala

2023

Flood Capacity Assessment of Confined Masonry School Buildings for Education Disruption Assessment

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Flood is one of the most common natural hazards that causes fatalities and significant disruption to human life, including to the education delivery through schools. Although the functionality disruption is significant, standing floodwater also causes lateral hydrostatic thrust on outer walls of buildings. This study examines the physical capacity of school buildings against flood loads by means of numerical modelling using Applied Element Method. Masonry buildings with varying levels of confinement are subjected to out-of-plane hydrostatic pressure, to assess the failure mechanisms and to estimate the lateral load carrying capacity, thus identifying the critical collapse depth of water. The study also looks at the effect of material degradation on the ultimate flood capacity. This result is further utilized to estimate physical and functional disruption to education delivery at schools. Peer-review under the responsibility of the organizing committee of the ICMB23.

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Comparative assessment of finite element macro-modelling approaches for seismic analysis of non-engineered masonry constructions

Ravichandran

Losanno

Parisi

2021

Bull Earthquake Eng

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All around the world, non-engineered masonry constructions (NECs) typically have high vulnerability to seismic ground motion, resulting in heavy damage and severe casualties after earthquakes. Even though a number of computational strategies have been developed for seismic analysis of unreinforced masonry structures, a few studies have focussed on NECs located in developing countries. In this paper, different modelling options for finite element analysis of non-engineered masonry buildings are investigated. The goal of the study was to identify the modelling option with the best trade-off between computational burden and accuracy of results, in view of seismic risk assessment of NECs at regional scale. Based on the experimental behaviour of a single-storey structure representative of Indian non-engineered masonry buildings, the output of seismic response analysis of refined 3D models in ANSYS was compared to that of a simplified model based on 2D, nonlinear, layered shell elements in SAP2000. The numerical-experimental comparison was carried out under incremental static lateral loading, whereas nonlinear time history analysis was performed to investigate the dynamic performance of the case-study structure. Analysis results show that the simplified model can be a computationally efficient modelling option for both nonlinear static and dynamic analyses, particularly in case of force-based approaches for design and assessment of base isolation systems aimed at the large-scale seismic vulnerability mitigation of NECs.

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Classification and seismic fragility assessment of confined masonry school buildings

Cited by 13 publications

References 61 publications

A simplified component-based methodology for the seismic vulnerability assessment of school buildings using nonlinear static procedures: application to RC school buildings

A simplified component-based methodology for the seismic vulnerability assessment of school buildings using nonlinear static procedures: application to RC school buildings

Flood capacity assessment of confined masonry school buildings for education disruption assessment

Comparative assessment of finite element macro-modelling approaches for seismic analysis of non-engineered masonry constructions

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