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StormVaultReviewResults.pdf Memorandum Date:Decemeber30,2008 th Subject:DetentionVaultStructuralPeerReview From:RobertL.Fernandes,P.E.,S.E.ɋBerger/ABAMEngineers,Inc. To:RobertS.English,P.E.ɋCityofEdmonds Routeto: wĻǝźĻǞƚŅ/ğƌĭǒƌğƷźƚƓtğĭƉğŭĻʹ StructuralcalculationssubmittedfortheCityofEdmonds5Avenue8DetentionVaulttoA.D. th ShapiroArchitectsbyPyrgosEngineeringonNovember20,2008. th wĻǝźĻǞ/ƚƒƒĻƓƷƭʹ Theloadsusedinthedesignofthevaultappeartobeincompliancewiththe2006International BuildingCode(IBC)andtheAmericanConcreteInstitute(ACI).Loadspertainingtothesoil seemreasonable,butageotechnicalreportwasnotprovided,andthuscouldnotbeconfirmed. Berger/ABAMEngineers,Inc.feelsthatasimplisticultimateconditionanalysisanddesignof thestructurewasperformed.Theassumedconditionsareconservativeforultimateloadcases; however,donotnecessarilyrepresentthetrueservicestatestructuralbehavior,whichcouldbe problematictothelongtermdurabilityofthestructure.Thisismostprevalentinthecornersof thevault,andmorespecifically,thebottomcornerswherethewallstieintothefooting.The slabsweretreatedassimplysupported,andifadequatereinforcementisnotprovidedand detailedinthecorners,thestructurecouldbepronetocracking.Noconstructiondrawings weresubmittedinthestructuralcalculationpackagetoverifythecornerdetails.Adrawing shouldbesubmittedinordertoverifythereinforcementcalculatedwasputontheplans. BERGER/ABAM Engineers Inc. 33301 Ninth Avenue South, Suite 300 Federal Way, WA 98003-2600 Phone 206/431-2300 Fax 206/431-2250 Memorandum Date:January8,2009 th Subject:DetentionVaultStructuralPeerReview From:RobertL.Fernandes,P.E.,S.E.ɋBerger/ABAMEngineers,Inc. To:RobertS.English,P.E.ɋCityofEdmonds Routeto: ThismemorandumservesasafollowuptothememorandumdatedDecember30,2008.After th reviewoftheconstructiondrawings,thereinforcementshowninthecornerscomplywiththe designcalculations. BERGER/ABAM Engineers Inc. 33301 Ninth Avenue South, Suite 300 Federal Way, WA 98003-2600 Phone 206/431-2300 Fax 206/431-2250