PIANC Seismic Design Guidelines for Port StructuresInternational Guidelines by PIANCWG members from 11 countriesSeismic performance-based designAnalysis methods

Performance-based designAcceptable damage levelI ServiceableII RepairableIII Near CollapseIV CollapseEarthquake motion levelLevel 1Level 2Performance gradeS, A, B, C

Acceptable level of damage

Performance grades S, A, B, and C

Performance-based designChoose performance grade: Owners/usersDefine damage criteria: Engineers +Owners/usersEvaluate seismic performance: Engineers

Performance-based designDamage criteriaFailure modeDisplacementStrainAnalysis typeSimplified analysisSimplified dynamic analysisDynamic analysisInputEarthquake motionsGeotechnical conditionsProposed design or existing structuresOutputDisplacementStrain

Types of Analysis Simplified analysis:Appropriate for evaluating approximate threshold level and/or elastic limitSimplified dynamic analysis:Possible to evaluate extent of displacement/ stress/strain based on assumed failure modesDynamic analysis:Possible to evaluate both failure modes and extent of displacement/stress/strain

Choice of analysis typesEarthquake motion levelGeotechnical conditionsStructural conditionsAnalysis stagePerformance grade

Types of analysis related to performance grade

PIANC Seismic Design Guidelines for Port StructuresPublishedSeptember, 2001, BalkemaSponsor: Coastal Development Institute of Technology, JapanPIANC SeminarsTokyo, December 10, 2001London, October 30, 2002Long Beach or Auckland