Seismic Vulnerability Analysis in 3D City Models (3DCM)

Paula Redweik, Paula Teves Costa, Inês Vilas Boas, Teresa Santos

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Abstract

Lisbon is a city with high seismic risk, having been hit in the past by strong earthquakes. That’s the reason why several seismic vulnerability studies have been made devoted to the buildings of the capital, aiming the creation of different scenarios that depend on the magnitude and source location of the earthquake. The results of these studies have been presented as maps resulting from crossing information contained in 2D layers and presented in a GIS environment. 3D City Models (3DCM) intend to associate a database of a city to a rigorous geospatial representation and close to the visible reality in an urban environment, combining geometry and semantics. As such, they may include tools that convey attribute analysis at different levels, allowing the generation of new knowledge on a phenomenon or its effects, not only at the statistical level but also in terms of visual impact on the object. In this project it is intended to extend into the third dimension a seismic vulnerability study of the buildings
of Lisbon held in 2D and explore the gains of spatial analysis in 3D representations. The various parameters that contribute to assess seismic vulnerability of buildings may be analyzed individually or simultaneously.
The application of this tool will be demonstrated in a pilot area of Lisbon.
Original languageEnglish
Title of host publicationICUR 2016 - The International Conference on Urban Risks
Subtitle of host publicationProceedings
EditorsPaula Teves Costa, Daniela Quino, Ricardo A. C. Garcia
Place of PublicationLisboa
PublisherCentro Europeu de Estudos Urbanos
Pages409-416
Number of pages7
ISBN (Electronic)978-989-95094-1-2
Publication statusPublished - 2016

Keywords

  • Buildings vulnerability
  • 3D-GIS
  • Seismic risk
  • 3D models

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