Seismic vulnerability assessment using field survey and Remote Sensing techniques

Seismic vulnerability assessment using field survey and Remote Sensing techniques P. Ricci 1 , G. M. Verderame 1 , G. Manfredi 1 , M. Pollino 2 , F. Borfecchia 2 , L. De Cecco 2 , S. Martini 2 , C. Pascale 3 , E. Ristoratore 3 , V. James 3 1 University of Naples Federico II , Department of Structural Engineering (DIST) 2 ENEA - National Agency for New Technologies, Energy and Sustainable Economic Development, “Earth Observations and Analyses” Lab 3 Consorzio TRE - Tecnologie per il Recupero Edilizio "Cities, Technologies and Planning" (CTP 2011) University of Cantabria, Santander - June 20 th -June 23 th , 2011

Introduction ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],June 20, 2011

Avellino city ,[object Object],June 20, 2011 It is in a high seismic area : it was struck strongly by the disastrous Irpinia earthquake of 23 November 1980, measuring 6.89 on the Richter Scale (2,914 people killed and more than 80,000 injured) From 2006 the urban planning issues of Avellino and neighbor areas are regulated by two instruments: P.I.C.A. (Italian acronym that stands for integrated Project for Avellino City) and P.U.C. (Urban Plan for Avellino Municipality)

Seismic hazard June 20, 2011 ,[object Object],[object Object],[object Object],[object Object],Stratigraphic conditions Topographic conditions

Field survey on building stock ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],June 20, 2011 ,[object Object]

Field survey on building stock ,[object Object],June 20, 2011 Pre-1981 Post-1981 ,[object Object],Edifici in CA – epoca di costruzione

Field survey on building stock June 20, 2011 ,[object Object],[object Object]

Field survey on building stock June 20, 2011 ,[object Object],[object Object],[object Object],Mean: Median: CoV: 3.48 3.30 0.17 Mean: Median: CoV: 3.11 3.20 0.17

Field survey on building stock June 20, 2011 ,[object Object],[object Object],Mean: Median: CoV: 4.50 4.40 0.18

Remote Sensing data and techniques ,[object Object],[object Object],[object Object],[object Object],June 20, 2011 ,[object Object],[object Object]

LIDAR technology June 20, 2011 ,[object Object],[object Object],[object Object]

LIDAR data processing ,[object Object],[object Object],June 20, 2011 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],3D View

DTM and DSM extracted from LIDAR June 20, 2011

GIS procedures ,[object Object],June 20, 2011 ,[object Object],[object Object]

Seismic vulnerability assessment ,[object Object],June 20, 2011 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Seismic vulnerability assessment - Procedure ,[object Object],June 20, 2011 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Ricci P., 2010. Seismic vulnerability of existing RC buildings. PhD thesis, University of Naples Federico II.

Seismic vulnerability assessment - Input Data June 20, 2011 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Ricci P., 2010. Seismic vulnerability of existing RC buildings. PhD thesis, University of Naples Federico II.

Seismic vulnerability assessment - Input Data June 20, 2011 ,[object Object],[object Object],[object Object],[object Object],LIDAR Statistics about building characteristics ISTAT census data ,[object Object],[object Object],Field Survey ,[object Object],[object Object],[object Object],[object Object],Seismic Vulnerability Assessment Procedure Seismic Vulnerability Assessment Procedure Seismic Risk Seismic Risk Comparison ,[object Object],(“reference”) (“approximated”)

Results based on field survey data June 20, 2011 ,[object Object],[object Object],[object Object],[object Object]

Results based on field survey data June 20, 2011 ,[object Object],[object Object],[object Object]

Results based on field survey data June 20, 2011 ,[object Object],[object Object]

Results based on LIDAR data June 20, 2011 ,[object Object],[object Object], ERR PfSD1 ERR PfSD2 ERR PfSD3 ERR PfSD4 ERR PfSD5  +8% +7% +13% +9% +15%  -  -12% -15% -15% -12% -9%  +  21% 23% 37% 24% 39% ,[object Object]

Results based on LIDAR data June 20, 2011 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Results based on LIDAR data June 20, 2011 ,[object Object]

Results based on LIDAR data June 20, 2011 ,[object Object],[object Object],[object Object],[object Object]

Conclusions June 20, 2011 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Seismic vulnerability assessment using field survey and Remote Sensing techniques

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Seismic vulnerability assessment using field survey and Remote Sensing techniques