Seismic Retrofitting of Historic Masonry Structures with the Use of Base Isolation—Modeling and Analysis Aspects

Petrovčič, Simon; Kilar, Vojko

doi:10.1080/15583058.2016.1190881

Cited by 17 publications

(9 citation statements)

References 38 publications

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“…Open space is an agent for recovery and adaptation as a site of operational bases for reconstruction work. While at the pre-disaster time most actions are focused on retrofitting the built-up environment and lifelines [94][95][96][97], open space (as well as social community) contributes to resilience the most at the emergency response (evacuation) and during the reconstruction phase. On the other side it is important to plan ahead and thus ensure the restorative capacities of both open space and social community before the earthquake strikes.…”

Section: Integrating the Potential Of Open Space Into The Complex Urbmentioning

confidence: 99%

The Potential of Open Space for Enhancing Urban Seismic Resilience: A literature Review

Koren

Rus

2019

Sustainability

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For a city to perform successfully, and its citizens to feel safe and comfortable, the health of basic urban components and the overall resilience of the urban system is crucial. As the importance of the resilient urban system has been recognized in the scientific literature, many studies have been done on this topic. Therefore, to find out the gaps in the existing literature and the opportunities for further research, a new systematic literature review has been performed in three stages. Different bibliographic techniques (co-occurrence and co-citation analysis) have been applied and, in the final stage of the analysis, an in-depth study of the content of the selected papers addressing open space in relation to urban seismic resilience has been carried out. The obtained results and trends have shown a lack of research on the potential of open space for enhancing urban seismic resilience, as well as a challenge for its quantitative assessment. The ability of the affected resilient system is to achieve at least a pre-disaster performance level in an acceptable time, which can be gained, among others, by using the restorative potential of open space. Based on the synthesis of these findings the authors' draft model of an urban system integrating the potential of open space is presented in terms of a complex network theory.

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Section: Integrating the Potential Of Open Space Into The Complex Urbmentioning

confidence: 99%

The Potential of Open Space for Enhancing Urban Seismic Resilience: A literature Review

Koren

Rus

2019

Sustainability

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“…Tests for Non-Seismic Load Scenarios, Linear Dynamic Spectrum Analysis were respectively done with a spectral response, as well as a Non-Linear Static Seismic Analysis (called Push-Over) [3], [19], [20]. In the Linear Dynamic Spectrum Analysis, in accordance with the national regulations [18], the vibration modes taken into account had to involve a mass >5 % of the total mass of the structure, and the sum of the total mass involved in the vibration modes considered had to be at least 85 % of the total mass of the structure.…”

Section: Methodsmentioning

confidence: 99%

Comparación de modelos sísmicos para un edificio histórico en mampostería

Saba

Meloni

2018

revuin

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Vol. 17, n° 2, pp. [105][106][107][108][109][110][111][112][113][114] 2018 Revista UIS Ingenierías AbstractIn this project, a historic masonry building in Sardinia, Italy has been considered as a case study for the comparison of two approaches for modeling, static and seismic analysis. Two software with different modeling approaches were employed with the purpose of comparing and discussing the results. SismiCad12 was used to simulate the structural behavior of the historic masonry building. SismiCad12 uses the Finite Element Method (FEM) that allows to model and analyze most types of 3D structures, and it is suitable for masonry structures. On the other hand, a different and innovative modeling approach called Frame Macro Elements (FME) was also applied using the 3Muri software, specially designed for assessing the linear, nonlinear, and seismic behavior of masonry structures.Assuming the same hypothesis to construct the 3D model of the structure in each code, the results of the static analysis show a different distribution of the vertical loads in the structure, which are more realistic in the FEM modeling. This different criterion of evaluation of the vertical loads carries a mechanism of "soft floor" in the pushover analysis in the FEM modeling, and therefore, a lower ultimate displacement corresponding to the collapse of the structure. On the other hand, in dynamic analyzes, FME modeling is more receptive to reality, involving a massive percentage of masses participating in the first vibration modes.Keywords: macro-elements; historic structures; pushover analysis. ResumenEn este proyecto se ha considerado como caso de estudio un edificio histórico de mampostería en Cerdeña, Italia, cuyo modelado, análisis estático y sísmico han sido desarrollados. En este estudio se han empleado dos programas informáticos con distintos enfoques de modelización con el propósito de comparar y discutir los resultados. Como primer simulador del comportamiento de la estructura en mampostería se ha elegido SismiCad12, que es una suite de Elementos Finitos (FEM, por sus siglas en inglés) que permite modelar y analizar la mayoría de los tipos de estructuras 3D y es adecuado para estructuras de mampostería. Por otro lado, se ha aplicado un método de modelado diferente e innovador denominado Frame Macro Elements (FME) con el software 3Muri, diseñado específicamente para evaluar el comportamiento lineal, no lineal y sísmico de las estructuras en mampostería.Suponiendo la misma hipótesis para construir el modelo 3D de la estructura en cada código, los resultados de los análisis estáticos muestran una diferente repartición de las cargas verticales en la estructura, las que son más realísticas en el modelado FEM. Este diferente criterio de evaluación de las cargas verticales lleva un mecanismo de "piso suave" 106M. Saba, D. Meloni en el análisis de pushover en el modelado FEM, y por lo tanto un desplazamiento ultimo inferior correspondiente al colapso de la estructura. Por lo contrario, en los análisis dinámicos el modelado FME es má...

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“…However, very important cultural facilities are also the historic and architectural heritage buildings, which are often particularly vulnerable to natural disasters (e.g. earthquakes) and thus a special attention should be paid to them [22,23].…”

Section: Buildingsmentioning

confidence: 99%

Proposal for Holistic Assessment of Urban System Resilience to Natural Disasters

Koren

Kilar

Rus

2017

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. Urban system is a complex mix of interdependent components and dynamic interactions between them that enable it to function effectively. Resilience of urban system indicates the ability of a system to resist, absorb, accommodate to and recover from the effects of a hazard in a timely and efficient manner. In the relevant literature, most studies consider individual components separately. On the other hand, the purpose of this paper is to assess the urban system as a whole, considering all relevant components and their interactions. The goal is a study of possibilities for holistic evaluation of urban system resilience to natural disasters. Findings from the preliminary study are presented: (i) the definition of urban system and categorization of its components, (ii) a set of attributes of individual components with impact on disaster resilience of the entire system and (iii) review of different methods and approaches for resilience assessment. Based on literature review and extensive preliminary studies a new conceptual framework for urban resilience assessment is proposed. In the presented paper, a conceptual model of urban system by abstraction of its components as nodes (buildings), patches -specific nodes with spatial properties (open space), links (infrastructures) and base layer (community) is created. In the suggested model, each component is defined by its own quantitative attributes, which have been identified to have an important impact on the urban system resilience to natural disasters. System is presented as a mathematical graph model. Natural disaster is considered an external factor that affects the existing system and leads to some system distortion. In further analyses, mathematical simulation of various natural disasters scenarios is going to be carried out, followed by comparison of the system functionality before and after the accident. Various properties of the system (accessibility, transition, complexity etc.) are going to be analysed with graph theory. The final result is going to be an identification of critical points and system bottlenecks as basis for further actions of risk mitigation.

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Seismic Retrofitting of Historic Masonry Structures with the Use of Base Isolation—Modeling and Analysis Aspects

Cited by 17 publications

References 38 publications

The Potential of Open Space for Enhancing Urban Seismic Resilience: A literature Review

The Potential of Open Space for Enhancing Urban Seismic Resilience: A literature Review

Comparación de modelos sísmicos para un edificio histórico en mampostería

Proposal for Holistic Assessment of Urban System Resilience to Natural Disasters

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