地震风险管理.pdf

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1、Managing earthquake risk Natural Hazards Research Australia 2025Dr Hossein DerakhshanNatural Hazards Research AustraliaQueensland University of TechnologyUnreinforced Masonry Building DatabaseOverviewObjectiveTo create a geospatial database of unreinforced masonry(URM)buildingsKey StakeholdersEmerge

2、ncy management sector(QFD,SAPOL,DFES,FRS,GA)ScopeNationwideHigher implied risk(population centres,older buildings,)Advanced technologies(AI)Expected outcomesTools for risk mitigation through emergency preparedness and planningWarwick,QLDEstablished:1850 Toowoomba,QLD Established:1849 Maryborough,QLD

3、 Established:1847Ipswich,QLDEstablished:1843 Gympie,QLD Established:1867 Childers,QLD Established:1885HazardEvery 10 years one M6+earthquakePotential for extensive building damage,e.g.5.6 ML in Newcastle 1989ExposureURM Concentration in town centresHeritage value,business activityVulnerabilityLack o

4、f seismic designLow tensile strengthRisk factorsMasonry as building materialLegacy buildingsHigh-risk architectural styles(e.g.roof-top cantilevers,pediments,figurines,turrets)Earthquakes were not understood wellGreater understanding of seismic risk;development of new building types;design codes5URM

5、 1:Single storey residential houses URM 2:2-storey pubs URM 3:1-storey row buildings URM 4:2-storey commercial buildings URM 5:2-storey post office buildingsURM 6:2-storey bank buildingURM 7:3-5 storeys commercialURM 8:6+storey buildingsURM 9:ChurchURM 10:2-storey town halls Possible other typologie

6、s for newer buildings subject to detailed scoping(ongoing)1 2 3 4 5 7 6 8 9 10 Building typologiesGaps and MethodologyPrevious studies and GapsFoot surveys:Queensland study,GA/Adelaide BNH-CRC(Project A9)study No consistent national databaseMethodologyBased on computer visionUsin