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  • Seismic damage simulation in urban areas based on a high-fidelity structural model and a physics engine

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    Author(s)
    Xu, Zhen
    Lu, Xinzheng
    Guan, Hong
    Han, Bo
    Ren, Aizhu
    Griffith University Author(s)
    Guan, Hong
    Year published
    2014
    Metadata
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    Abstract
    Effective seismic damage simulation is an important task in improving earthquake resistance and safety of dense urban areas. There exist two significant technical challenges for realizing such a simulation: accurate prediction and realistic display. A high-fidelity structural model is proposed herein to accurately predict the seismic damage that was inflicted on a large number of buildings in an urban area via time-history analysis (THA), with which the local damage to different building stories is also explicitly obtained. The accuracy and efficiency of the proposed model are validated by a refined finite element (FE) ...
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    Effective seismic damage simulation is an important task in improving earthquake resistance and safety of dense urban areas. There exist two significant technical challenges for realizing such a simulation: accurate prediction and realistic display. A high-fidelity structural model is proposed herein to accurately predict the seismic damage that was inflicted on a large number of buildings in an urban area via time-history analysis (THA), with which the local damage to different building stories is also explicitly obtained. The accuracy and efficiency of the proposed model are validated by a refined finite element (FE) analysis of a typical building. A physics engine-based algorithm is also proposed that realistically displays building collapse, thus overcoming the limitations of the high-fidelity structural model. Furthermore, a visualization system integrating the proposed model and collapse simulation is developed so as to completely display the seismic damage in detail. Finally, the simulated seismic damage of a real medium-sized Chinese city is evaluated to demonstrate the advantages of the proposed techniques, which can provide critically important reference information for urban disaster prevention and mitigation.
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    Journal Title
    Natural Hazards
    Volume
    71
    Issue
    3
    DOI
    https://doi.org/10.1007/s11069-013-0972-8
    Copyright Statement
    © 2013 Springer Netherlands. This is an electronic version of an article published in Natural Hazards, Volume 71, Issue 3, pp 1679-1693, 2013. Natural Hazards is available online at: http://link.springer.com/ with the open URL of your article.
    Subject
    Atmospheric sciences
    Physical geography and environmental geoscience
    Structural engineering
    Publication URI
    http://hdl.handle.net/10072/57053
    Collection
    • Journal articles

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