Performance-based Seismic Risk Assessment of Urban Systems

ABSTRACT Disaster risk mitigation has become a urgent global need. Similar to other natural hazards, earthquakes may cause significant damage on a large scale. In Europe and in other regions with dense urbanization, seismic events can heavily impact historical city centers due to the several structural fragilities. These centers are often part of the worldwide cultural heritage and their preservation is considered a strategic issue. Furthermore, earthquakes may have severe negative short-term economic effects on the impacted communities and adverse longer-term consequences for economic growth. For this reason, the development of an efficient approach for urban seismic risk assessment becomes essential. An original approach is proposed, based on performance concepts and multidisciplinary perspectives. The procedure is applied for validation to the city center of Concordia Sulla Secchia (Italy), damaged by the 2012 Pianura Padana Earthquake (PPE), comparing predicted damage scenarios with the actual post-seismic survey data.

[1]  Humberto Varum,et al.  Seismic vulnerability assessment of masonry facade walls: development, application and validation of a new scoring method , 2014 .

[2]  S. Giovinazzi.  The Vulnerability Assessment and the Damage Scenario in Seismic Risk Analysis , 2005 .

[3]  R. Mcguire.  Seismic Hazard and Risk Analysis , 2004 .

[4]  Pitilakis Kyriazis,et al.  Systemic Seismic Vulnerability and Risk Analysis for Buildings, Lifeline Networks and Infrastructures Safety Gain. SYNER-G Synthetic Document , 2013 .

[5]  Alex H. Barbat,et al.  Seismic hazard and risk scenarios for Barcelona, Spain, using the Risk-UE vulnerability index method , 2010 .

[6]  P. Roca,et al.  SEISMIC RISK ASSESSMENT AND MITIGATION AT EMERGENCY LIMIT CONDITION OF HISTORICAL BUILDINGS ALONG STRATEGIC URBAN ROADWAYS. APPLICATION TO THE "ANTIGA ESQUERRA DE L'EIXAMPLE" NEIGHBOURHOOD OF BARCELONA , 2018 .

[7]  S. Lagomarsino,et al.  Macroseismic and mechanical models for the vulnerability and damage assessment of current buildings , 2006 .

[8]  Luca Pelà,et al.  Seismic Risk Assessment and Mitigation at Emergency Limit Condition of Historical Buildings along Strategic Urban Roadways. Application to the “Antiga Esquerra de L’Eixample” Neighborhood of Barcelona , 2018 .

[9]  A. Thieken,et al.  Sendai Framework for Disaster Risk Reduction – Success or Warning Sign for Paris? , 2015 .

[10]  Anne S. Kiremidjian,et al.  NCEER-ATC Joint Study on Fragility of Buildings , 1995 .

[11]  V. Bertero,et al.  PERFORMANCE-BASED SEISMIC ENGINEERING:CONVENTIONAL VS. INNOVATIVE APPROACHES , 1999 .

[12]  Farzad Naeim,et al.  Performance Based Seismic Engineering , 2001 .

[13]  S. Lagomarsino,et al.  A MACROSEISMIC METHOD FOR THE VULNERABILITY ASSESSMENT OF BUILDINGS , 2002 .

[14]  R. Goel,et al.  Capacity-Demand-Diagram Methods Based on Inelastic Design Spectrum , 1999 .

[15]  P. Franchin,et al.  D 5 . 7 DELIVERABLE PROJECT INFORMATION Project Title : Systemic Seismic Vulnerability and Risk Analysis for Buildings , Lifeline Networks and Infrastructures Safety Gain , 2012 .

[16]  Robin Spence,et al.  Earthquake Loss Estimation for Europe's Historic Town Centres , 1997 .

[17]  Kang-Tsung Chang,et al.  Introduction to Geographic Information Systems , 2001 .

[18]  Hugo Bachmann,et al.  ON THE SEISMIC VULNERABILITY OF EXISTING UNREINFORCED MASONRY BUILDINGS , 2003 .

[19]  Emre Kishali,et al.  Analytically derived fragility curves for unreinforced masonry buildings in urban contexts , 2012 .

[20]  A. Aprile,et al.  Computer-aided risk assessment at urban scale. Model definition and validation on a case study , 2016 .

[21]  J. Mendes,et al.  Seismic vulnerability and risk assessment: case study of the historic city centre of Coimbra, Portugal , 2011 .

[22]  João Manuel Carvalho Estevão,et al.  Seismic vulnerability assessment of historical urban centres: case study of the old city centre of Faro, Portugal , 2016 .

[23]  Cornell C. Allin,et al.  Seismic reliability analysis of structures , 2007 .

[24]  Sara Paganoni,et al.  Assessment and analysis of damage in L’Aquila historic city centre after 6th April 2009 , 2011 .

[25]  Humberto Varum,et al.  Seismic vulnerability assessment of historical urban centres: case study of the old city centre in Seixal, Portugal , 2013, Bulletin of Earthquake Engineering.

[26]  É. Bertrand,et al.  THE EUROPEAN RISK-UE PROJECT : AN ADVANCED APPROACH TO EARTHQUAKE RISK SCENARIOS , 2002 .

[27]  Sonia Giovinazzi,et al.  The vulnerability assessment of current buildings by a macroseismic approach derived from the EMS-98 scale , 2007 .

[28]  Keith Porter,et al.  A Beginner’s Guide to Fragility, Vulnerability, and Risk , 2016 .

[29]  Enrico Spacone,et al.  Performance-Based Urban Planning: Framework and L’Aquila Historic City Center Case Study , 2017 .

[30]  Michel Bruneau,et al.  A Framework to Quantitatively Assess and Enhance the Seismic Resilience of Communities , 2003 .

[31]  Podestà Stefano,et al.  A Macroseismic Method for Vulnerability Assessment of Rationalist Architectural Heritage , 2014 .

[32]  Keith Porter,et al.  An Overview of PEER's Performance-Based Earthquake Engineering Methodology , 2003 .