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Using data interpretation to enhance post-seismic decision making at urban scale

 Using data interpretation to enhance post-seismic decision making at urban scale
Author(s): , , ,
Presented at IABSE Symposium: Towards a Resilient Built Environment Risk and Asset Management, Guimarães, Portugal, 27-29 March 2019, published in , pp. 1789-1796
DOI: 10.2749/guimaraes.2019.1789
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Recent events around the globe are evidence that earthquake action is still a threat for many structures. Low replacement and retrofitting rates of urban housing mean that many buildings do not com...
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Bibliographic Details

Author(s): (Swiss Federal Institute of Technology (EPFL), Lausanne, Switzerland)
(Swiss Federal Institute of Technology (EPFL), Lausanne, Switzerland)
(Swiss Federal Institute of Technology (EPFL), Lausanne, Switzerland)
(Swiss Federal Institute of Technology (EPFL), Lausanne, Switzerland)
Medium: conference paper
Language(s): English
Conference: IABSE Symposium: Towards a Resilient Built Environment Risk and Asset Management, Guimarães, Portugal, 27-29 March 2019
Published in:
Page(s): 1789-1796 Total no. of pages: 8
Page(s): 1789-1796
Total no. of pages: 8
DOI: 10.2749/guimaraes.2019.1789
Abstract:

Recent events around the globe are evidence that earthquake action is still a threat for many structures. Low replacement and retrofitting rates of urban housing mean that many buildings do not comply with seismic actions defined in present-day seismic codes and thus, important post- seismic assessment activities are still to be expected. City-scale resilience, which implies rapid recovery of building functionalities, is undermined by the slowness and qualitative nature of visual inspection (being current practice for post-seismic assessment). A methodology involving model- based interpretation of post-seismic data sources to assess residual capacity of damaged buildings is presented. Vibration measurements and visual inspection outcomes are combined to reduce the uncertainty related to residual capacity. Simplified behaviour models for recurrent building types are used to predict building behaviour during future events. A simulated scenario on a real building stock of a typical Swiss city subjected to moderate seismicity is used for illustration.

Keywords:
existing buildings seismic vulnerability post-earthquake assessment Model-based data interpretation Structural Resilience city-scale assessment Ambient-Vibration Measurements