Structural damage in the cities of Reggiolo and Carpi after the earthquake on May 2012 in Emilia Romagna

Andreini, Marco; Falco, Anna De; Giresini, Linda; Sassu, Mauro

doi:10.1007/s10518-014-9660-7

Cited by 33 publications

(19 citation statements)

References 20 publications

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“…Despite having a moderate magnitude of 5.1 Mw, the quake on 11 May 2011 caused important casualties (9 people died and more than 300 were injured) and important structural damage which forced more than 10,000 people to be evacuated from their homes during the first days [36]. Considering the comparatively small size of the city of Lorca and the homogenous results that the seismic event produced in the urban area, the quake was defined with an EMS-98 macroseismic intensity (I EMS-98 ) of VII [37] in the main neighborhoods of the city.…”

Section: Application Of the Risk-ue Lm1 Methods For Seismic Vulnerabilmentioning

confidence: 99%

“…Damage in small constructions with cracks in masonry infill walls at the ground floor and failures at the end of columns is generally identified in this type of buildings due to their higher stiffness [5,35,36]. Thus, the behavior lower height building is penalized with a value of 0.04, whose natural frequency coincides with the amplified area of constant spectral acceleration, and the vulnerability of the highest buildings is diminished (−0.04) coinciding with the spectrum area of decreasing accelerations.…”

Section: Modifier Of Behavior Level Of Design Codementioning

confidence: 99%

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Estimation of the Buildings Seismic Vulnerability: A Methodological Proposal for Planning Ante-Earthquake Scenarios in Urban Areas

2018

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Featured Application: Geographic Information System (GIS) estimation of ante-earthquake scenarios through a more functional and standardized method of seismic vulnerability evaluation of reinforced concrete buildings in urban areas. Abstract:In spite of the enhancements related to building construction, many regions still present a major level of seismic risk as a consequence of the high vulnerability of the urban configuration of their cities. An improved method to assess the seismic vulnerability of buildings in urban areas is proposed in this contribution in order to advance the management of seismic emergency scenarios. The methodology, mainly based on the cadastral database, allows for a more standardized implementation as a function on the typological, structural, and urban parameters of the buildings, reducing the level of uncertainties linked to these methodologies and giving continuity to the different RISK-UE published works. The generalization of the method to any urban area has also been improved by means of removing the parameters whose calibration is associated with a specific area. The methodology has been put into practice in the urban area of the city of Lorca (SE Spain), in the aftermath of the earthquake of 11 May 2011, due to the availability of well-documented data reported from this seismic event. The proposal, when it is combined with Geographic Information System (GIS) techniques, provides valuable information for the planning and management of post-earthquake emergency situations.

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Section: Application Of the Risk-ue Lm1 Methods For Seismic Vulnerabilmentioning

confidence: 99%

Section: Modifier Of Behavior Level Of Design Codementioning

confidence: 99%

Estimation of the Buildings Seismic Vulnerability: A Methodological Proposal for Planning Ante-Earthquake Scenarios in Urban Areas

2018

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“…In other contexts the presence of humidity at the base of the walls is able to reduce the mechanical properties and the integrity of the constructions [3]. In these last cases, the application of specific reinforced damp proof courses [4] or temporary reinforcements [5] can mitigate this aspect.…”

Section: Introductionmentioning

confidence: 99%

On the Use of Vibro-Compressed Units with Bio-Natural Aggregate

et al. 2016

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Abstract:The paper deals with the use of vibro-compressed units with bio-natural components on construction. The proposed mix design of vibrated blocks consist of cork granules and/or hemp shives, with the aim to substitute polymeric elements or expanded clay, together with the use of natural hydraulic lime (NHL) as binder. An experimental campaign is presented, with mechanical tests to evaluate the influence of each component on flexural and compression behavior. The proposal is also investigated from a productive point of view, considering how it can be harmonized in the productive process of lightweight aggregate concrete units without modifications in the productive process. The tested elements could perform a certain reduction of the carbon impact, maintaining interesting mechanical properties. The application of the proposed units in several contexts, as separating elements joined with structural components, is considered to improve rehabilitation or to obtain higher performances in buildings.

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“…columns, and inadequate bonded lengths and overlapping of bars. All these deficiencies in structural details may cause the local brittle shear mechanism and global collapse mechanism of "weak columns" [37,38].…”

Section: Description Of the Buildingsmentioning

confidence: 99%

Effect of Material Variability and Mechanical Eccentricity on the Seismic Vulnerability Assessment of Reinforced Concrete Buildings

et al. 2017

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Abstract:The present paper deals with the influence of material variability on the seismic vulnerability assessment of reinforced concrete buildings. Existing r.c. buildings are affected by a strong dispersion of material strengths of both the base materials. This influences the seismic response in linear and nonlinear static analysis. For this reason, it is useful to define a geometrical parameter called "material eccentricity". As a reference model, an analysis of a two storey building is presented with a symmetrical plan but asymmetrical material distribution. Furthermore, an analysis of two real buildings with a similar issue is performed. Experimental data generate random material distributions to carry out a probabilistic analysis. By rotating the vector that defines the position of the center of strength it is possible to describe a strength domain that is characterized by equipotential lines in terms of the Risk Index. Material eccentricity is related to the Ultimate Shear of non-linear static analyses. This relevant uncertainty, referred to as the variation of the center of strength, is not considered in the current European and Italian Standards. The "material eccentricity" therefore reveals itself to be a relevant parameter to considering how material variability affects such a variation.

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Structural damage in the cities of Reggiolo and Carpi after the earthquake on May 2012 in Emilia Romagna

Cited by 33 publications

References 20 publications

Estimation of the Buildings Seismic Vulnerability: A Methodological Proposal for Planning Ante-Earthquake Scenarios in Urban Areas

Estimation of the Buildings Seismic Vulnerability: A Methodological Proposal for Planning Ante-Earthquake Scenarios in Urban Areas

On the Use of Vibro-Compressed Units with Bio-Natural Aggregate

Effect of Material Variability and Mechanical Eccentricity on the Seismic Vulnerability Assessment of Reinforced Concrete Buildings

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