Comparing seismic parameters for different source zone models in the Iberian Peninsula

Amaro-Mellado, José-Lázaro; Morales‐Esteban, Antonio; Asencio-Cortés, Gualberto; Martínez‐Álvarez, Francisco

doi:10.1016/j.tecto.2017.08.032

Cited by 30 publications

(32 citation statements)

References 53 publications

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“…Afterward, Secanell et al [57] divided the Pyrenees into ten seismogenic zones from the ISARD project earthquake catalog and tectonic models, and then b-values were obtained. In addition, in the frame of the PSHA models for Spain and their analysis, some studies have been addressed [1,2,6]. In recent research, Amaro-Mellado et al [7] produced a continuous b-value map for the whole Iberian Peninsula and adjacent areas; however, an in-depth specific study for the Pyrenees has not been conducted.…”

Section: Related Work On the Pyrenees Seismicitymentioning

confidence: 99%

“…Their intensities recorded in the catalog could not be the epicentral ones, due to attenuation, and should be revised. The works that have supported the review are found in [6,39,46,47,49,50,52,55,[61][62][63][64][65][66][67].…”

Section: Review From Other Catalogs and Specific Studiesmentioning

confidence: 99%

“…In seismicity studies, some parameters have a particularly important role. Among others, these are the maximum magnitude (recorded, possible, expected), the b-value of the Gutenberg-Richter (GR) frequency-magnitude (FMD) relation, and a parameter related to the seismic activity (mean seismic activity rate or the a-value of GR) [1][2][3][4][5][6][7][8][9][10][11][12][13]. Some of these studies are based on seismic zonations [1,2], and others are found in a purely geographical grid division [7,11,14,15].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

GIS-Based Mapping of Seismic Parameters for the Pyrenees

Amaro-Mellado

Bui

2020

IJGI

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In the present paper, three of the main seismic parameters, maximum magnitude -Mmax, b-value, and annual rate -AR, have been studied for the Pyrenees range in southwest Europe by a Geographic Information System (GIS). The main aim of this work is to calculate, represent continuously, and analyze some of the most crucial seismic indicators for this belt. To this end, an updated and homogenized Poissonian earthquake catalog has been generated, where the National Geographic Institute of Spain earthquake catalog has been considered as a starting point. Herein, the details about the catalog compilation, the magnitude homogenization, the declustering of the catalog, and the analysis of the completeness, are exposed. When the catalog has been produced, a GIS tool has been used to drive the parameters’ calculations and representations properly. Different grids (0.5 × 0.5° and 1 × 1°) have been created to depict a continuous map of these parameters. The b-value and AR have been obtained that take into account different pairs of magnitude–year of completeness. Mmax has been discretely obtained (by cells). The analysis of the results shows that the Central Pyrenees (mainly from Arudy to Bagnères de Bigorre) present the most pronounced seismicity in the range.

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Section: Related Work On the Pyrenees Seismicitymentioning

confidence: 99%

Section: Review From Other Catalogs and Specific Studiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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GIS-Based Mapping of Seismic Parameters for the Pyrenees

Amaro-Mellado

Bui

2020

IJGI

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“…Baelo Claudia is located in an area with a low-moderate seismic hazard, but which was affected by energetic earthquakes such as the earthquakes in Lisbon (1755) and in Cape St. Vincent (1969) [37,38].…”

Section: Case Study: Baelo Claudia Archaeological Ensemblementioning

confidence: 99%

As-Built 3D Heritage City Modelling to Support Numerical Structural Analysis: Application to the Assessment of an Archaeological Remain

et al. 2019

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Terrestrial laser scanning is a widely used technology to digitise archaeological, architectural and cultural heritage. This allows for modelling the assets’ real condition in comparison with traditional data acquisition methods. This paper, based on the case study of the basilica in the Baelo Claudia archaeological ensemble (Tarifa, Spain), justifies the need of accurate heritage modelling against excessively simplified approaches in order to support structural safety analysis. To do this, after validating the 3D meshing process from point cloud data, the semi-automatic digital reconstitution of the basilica columns is performed. Next, a geometric analysis is conducted to calculate the structural alterations of the columns. In order to determine the structural performance, focusing both on the accuracy and suitability of the geometric models, static and modal analyses are carried out by means of the finite element method (FEM) on three different models for the most unfavourable column in terms of structural damage: (1) as-built (2) simplified and (3) ideal model without deformations. Finally, the outcomes show that the as-built modelling enhances the conservation status analysis of the 3D heritage city (in terms of realistic compliance factor values), although further automation still needs to be implemented in the modelling process.

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“…The main goal of the project is to analyse and reduce the seismic vulnerability of schools' buildings located in the Algarve-Huelva region. This area is located near the Eurasian and the African tectonic plates boundary [6]. This is characterized by earthquakes of long-return period and large magnitude such as the famous 1755 Lisbon earthquake (Mw = 8.5) and the 1969 earthquake (Mw = 8) [7].…”

Section: Introductionmentioning

confidence: 99%

Seismic Performance Comparison Between Structure-Improvement Techniques and Ground-Improvement Techniques: Application to a Reinforced Concrete School Building

Requena-Garcia-Cruz

Morales‐Esteban

Segovia-Verjel

et al. 2019

WIT Transactions on the Built Environment

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The seismic retrofitting of reinforced concrete (RC) buildings has been widely analysed. Most of the solutions proposed are focused on the building's structure improvement. However, the effects of ground-improvement techniques combined with the building's structure-improvement techniques have not been usually analysed. Therefore, this paper aims to assess the seismic performance of a building by adding different seismic retrofitting techniques in the structure and the ground. A RC school building is proposed in this work. This has been selected because it was constructed prior to the current seismic code. Schools are some of the buildings most vulnerable to earthquakes. This is due to the low adult/child ratio. This paper is framed within the PERSITAH project (Projetos de Escolas Resilientes aos SISmos no Território do Algarve e de Huelva, in Portuguese). The main goal of the project is to analyse the seismic vulnerability of schools' buildings located in the Algarve-Huelva region. This area is characterized by earthquakes of long-return period and large magnitude. Therefore, the population is not aware of the seismic hazard of the area. Different seismic retrofitting techniques have been added to the building and they have been compared and analysed. The techniques have consisted of the addition of X-bracings within the buildings' bays, steel jackets in columns and soil injection grouting. These solutions have been added both individually and combined to generate hybrid models. Nonlinear static analyses have been carried out to determine the seismic performance of the building including each technique. The N2-method has been considered to obtain the performance displacement. Moreover, the damage level probability and the mean damage index have been determined for each retrofitting technique. Results have shown that the addition of X-bracings is the most efficient solution. However, this solution causes a great architectural impact. Therefore, the solution of steel jackets and/or injection grouting emerges as an interesting alternative.

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Comparing seismic parameters for different source zone models in the Iberian Peninsula

Cited by 30 publications

References 53 publications

GIS-Based Mapping of Seismic Parameters for the Pyrenees

GIS-Based Mapping of Seismic Parameters for the Pyrenees

As-Built 3D Heritage City Modelling to Support Numerical Structural Analysis: Application to the Assessment of an Archaeological Remain

Seismic Performance Comparison Between Structure-Improvement Techniques and Ground-Improvement Techniques: Application to a Reinforced Concrete School Building

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