Fragility Analysis of Existing Unreinforced Masonry Buildings through a Numerical-based Methodology

Karbassi, Amin; Lestuzzi, Pierino

doi:10.2174/1874149501206010121

Cited by 11 publications

(4 citation statements)

References 16 publications

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“…However, shear-compression failure due to high axial loads is not taken into consideration. AEM has been shown by several researchers [53,54,55,56,57,58,59,60] to predict post-yield structural behavior of masonry and reinforced-concrete structures that are defined by a particularly large range of potential failure modes. The applicability of AEM to successfully simulate large 8 deformations has been demonstrated by Tagel-Din and Meguro [61], among others.…”

Section: Physics-based Model: the Applied-element Methodsmentioning

confidence: 99%

A model-based data-interpretation framework for post-earthquake building assessment with scarce measurement data

Reuland

Lestuzzi

Smith

2019

Soil Dynamics and Earthquake Engineering

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Recent earthquake events throughout the world have once again exposed the vulnerability of buildings with respect to earthquakes. It is unlikely and unsustainable to design and-especially in regions with low-to-moderate seismic hazard-to retrofit all buildings to remain within elastic displacement ranges during earthquakes with high return periods. Therefore, post-earthquake assessment plays a fundamental role in the resilience of cities, given the potential to reduce time between an earthquake event and the clearance for (renewed) occupancy of a building. In this paper, a framework for model-based data interpretation of measurements of earthquake-damaged structures is presented. The framework allows engineers to combine ambient-vibration measurements and visual inspection to reduce parametric uncertainty of a high-fidelity model using the error-domain modelfalsification methodology. For building types that have limited stiffness contributions from non-structural elements (i.e. shear-wall buildings) and for which non-ductile failure modes (such as out-of-plane failure) can be excluded, reduction in natural frequency and damage grades derived from visual inspection provide global measurement sources for structural identification. The application of the proposed methodology to a shear-resisting building tested on a shake table illustrates that vulnerability-curve predictions provide accurate damage estimates for subsequent earthquakes with probabilities between 50 and 100 percent for five measured scenarios. In complete absence of baseline information regarding the initial building state and the earthquake signal, parametric uncertainty is reduced by up to 76 percent. This study thus demonstrates usefulness for certain building types to enhance post-seismic vulnerability predictions.

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Section: Physics-based Model: the Applied-element Methodsmentioning

confidence: 99%

A model-based data-interpretation framework for post-earthquake building assessment with scarce measurement data

Reuland

Lestuzzi

Smith

2019

Soil Dynamics and Earthquake Engineering

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“…The methodology followed for the numerical modelling of the studied building is based on the Applied Element Method (AEM). This method represents an alternative modelling technique to the Finite Element Method and has been used in combination with non-linear dynamic analysis [4,16,17].…”

Section: Adopted Modelling Strategymentioning

confidence: 99%

Evaluation of the Seismic Vulnerability of the “Ancien Hôpital De Sion” Using Applied Element Modelling (Aem) and Local Mechanism Analysis

Garofano¹,

Lestuzzi²

2015

Proceedings of the 5th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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“…It should be pointed out that the stress condition of multistory masonry structure is very complex during the seismic action [20][21][22][23]. Especially some structural components could develop inelastic deformations or may exhibit brittle failure.…”

Section: Earthquake Damage Distribution Of Multistory Masonry Buildingsmentioning

confidence: 99%

Study on Earthquake Damage Distribution of Multistory Masonry Buildings

Zhou¹,

Sun²

2015

TOCIEJ

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Abstract:The main components which affect the earthquake damage grades classification of multistory masonry buildings and the damage characters are summarized and analyzed through the statistics and analysis of a large number of previous earthquake damage data. According to the standard of earthquake damage grades classification, the damage numbers of each component of multistory masonry buildings under different earthquake damage indexes are analyzed quantitatively and the calculation formulas based on the relationship between the damage numbers of components and the earthquake damage index under different cases are given; Based on the structural analysis of multistory masonry buildings and the research of earthquake damage data, the calculation formulas of the earthquake damage distributions in different floors and main components' different positions on the same floor of multistory masonry buildings are given, which provides us a platform to objectively understand the earthquake damage distribution of multistory masonry buildings; The earthquake damage distribution is an important factor to affect the realistic degree of the 3-D damage models in the scene simulation system for earthquake disaster, this paper also provides a theoretical basis for the modeling of the 3-D damage models of multistory masonry structure; Finally, the earthquake damage distribution of the bearing wall of a five-storey masonry building in the minor damage has been given as an example.

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Fragility Analysis of Existing Unreinforced Masonry Buildings through a Numerical-based Methodology

Cited by 11 publications

References 16 publications

A model-based data-interpretation framework for post-earthquake building assessment with scarce measurement data

A model-based data-interpretation framework for post-earthquake building assessment with scarce measurement data

Evaluation of the Seismic Vulnerability of the “Ancien Hôpital De Sion” Using Applied Element Modelling (Aem) and Local Mechanism Analysis

Study on Earthquake Damage Distribution of Multistory Masonry Buildings

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