Towards an integrated framework for the risk assessment of coastal structures exposed to earthquake and tsunami hazards  

作　　者：Cláudia Reis Mário Lopes Maria Ana Baptista Stéphane Clain 

机构地区：[1]Civil Engineering Research and Innovation for Sustainability,CERIS,Instituto Superior Técnico,Universidade de Lisboa,Avenida Rovisco Pais,1,Lisboa 1049-001,Portugal [2]Instituto Superior de Engenharia de Lisboa,Instituto Politécnico de Lisboa,R.Conselheiro Navarro 1,Lisboa 1959-007,Portugal [3]Departamento de Matemática,Centro de Física,Universidade do Minho,Campus de Gualtar,Braga 4710-057,Portugal

出　　处：《Resilient Cities and Structures》2022年第2期57-75,共19页韧性城市与结构（英文）

基　　金：supported by Fundacao para a Ciencia e Tecnologia,PhD grant no.SFRH/BD/137531/2018,ongoing at Lisbon University,Instituto Superior Tecnico,Civil Engineering Research and Innovation for Sustainability(CERIS);Lopes and Reis are grateful for the Foundation for Science and Technology’s support through funding UIDB/04625/2020 from the research unit CERIS;finantial support by FEDER-Fundo Europeu de Desenvolvimento Regional,through COMPETE 2020-Programa Operacional Fatores de Competitividade;the National Funds through FCT-Fundacao para a Ciencia e Tecnologia,projects no.UID/FIS/04650/2019 and no.POCI-01-0145-FEDER-028118.

摘　　要：The spatial distribution of the world population is uneven,with a density of about 40%living in coastal regions.The trend is expected to continue in both demographic indicators and urban development rate,being many coastal cities in seismic-and tsunami-prone regions and built through informal and unplanned settlements,exposing their population and assets to such hazards.Recent tectonic-triggered events raised awareness of the cascading earthquake and tsunami threat and highlighted the paucity of structural design criteria considering the cumulative effects of both.By being exposed to the ground-motion,the structures’resistance may decrease and become residual/non-existent to support the incoming tsunami,implying an underestimation of the risk.Risk management can benefit from reinforcing the ties between natural hazards and engineering practitioners,linking science and industry,and promoting dialogue between risk analysts and policy-makers.Motivated by the expansion plans of an internationally-sized deep-water port located in a tsunami-prone region,a reflection on the work needed to perform a multi-risk assessment and the challenges yet to overcome is introduced to emphasize the challenge of combining safety requirements with financial and ecologic concerns.A conceptual interdisciplinarybased methodology is proposed to support uncertainty-aware,systematic and informed decisions.

关 键 词：Cascading earthquake and tsunami Multi-hazard Structural vulnerability to earthquake and derivative tsunami Performance-based engineering to cascading ground motion and tsunami 

分 类 号：P73[天文地球—海洋科学]