Applicability of the CastApplicability of the Cast--inin--PlacePlaceApplicability of the CastApplicability of the Cast--inin--PlacePlaceConcrete Barrel ArchConcrete Barrel Arch

October 25, 2012October 25, 2012,,

Chris Day, P.E. Wendell Buckman, P.E.y, ,

Applicability of the CastApplicability of the Cast--inin--PlacePlaceConcrete Barrel ArchConcrete Barrel Arch

IntroductionSite ConsiderationsCast-in-Place versus PrecastCast-in-Place versus PrecastConstruction MethodsO B fiOwner BenefitsWrap Up/Questions

WILLIAM STREET BRIDGEWILLIAM STREET BRIDGE

JOHN STREET BRIDGEJOHN STREET BRIDGE

Applicability of the CastApplicability of the Cast--inin--PlacePlaceConcrete Barrel ArchConcrete Barrel Arch

IntroductionSite ConsiderationsCast-in-Place versus PrecastCast-in-Place versus PrecastConstruction MethodsO B fiOwner BenefitsWrap Up/Questions

Advantages of Arches Advantages of Arches versus Conventional Structuresversus Conventional Structures

No JointsNo JointsNo BearingsN B id D kNo Bridge Deck

FoundationFoundationFoundationFoundation

AestheticsAestheticsAestheticsAesthetics

Skewed CrossingSkewed CrossingSkewed CrossingSkewed Crossing

Applicability of the CastApplicability of the Cast--inin--PlacePlaceConcrete Barrel ArchConcrete Barrel Arch

IntroductionSite ConsiderationsCast-in-Place versus PrecastCast-in-Place versus PrecastConstruction MethodsO B fiOwner BenefitsWrap Up/Questions

Advantages of Precast ArchesAdvantages of Precast ArchesAdvantages of Precast ArchesAdvantages of Precast Arches

Quality of ConcreteySpeed of ConstructionCostCost

William Street over Flint CreekWilliam Street over Flint CreekWilliam Street over Flint CreekWilliam Street over Flint Creek

Precast Concrete ArchPrecast Concrete Arch$1.60 Million

Cast-in-Place Concrete Arch$1.62 Million

Advantages of CIP ArchAdvantages of CIP ArchAdvantages of CIP ArchAdvantages of CIP Arch

Geometric FlexibilityyWeight of Precast Units

Applicability of the CastApplicability of the Cast--inin--PlacePlaceConcrete Barrel ArchConcrete Barrel Arch

IntroductionSite ConsiderationsCast-in-Place versus PrecastCast-in-Place versus PrecastConstruction MethodsO B fiOwner BenefitsWrap Up/Questions

Applicability of the CastApplicability of the Cast--inin--PlacePlaceConcrete Barrel ArchConcrete Barrel Arch

IntroductionDesign Criteria/ConsiderationsCast-in-Place versus PrecastCast-in-Place versus PrecastConstruction MethodsO B fitOwner BenefitsWrap Up/Questions

Applicability of the CastApplicability of the Cast--inin--PlacePlaceConcrete Barrel ArchConcrete Barrel Arch

IntroductionSite ConsiderationsCast-in-Place versus PrecastCast-in-Place versus PrecastConstruction MethodsO B fiOwner BenefitsWrap Up/Questions

Question #1Question #1Question #1Question #1

What are 2 advantages precast arches g phave over CIP arches?

Question #1Question #1Question #1Question #1

What are 2 advantages precast arches g phave over CIP arches?

◦ Quality of Concrete◦ Speed of ConstructionSpeed of Construction◦ Cost

Question #2Question #2Question #2Question #2

What is the biggest disadvantage of the gg gprecast arch systems?

Question #2Question #2Question #2Question #2

What is the biggest disadvantage of the gg gprecast arch systems?

◦ Geometric restrictions (ie. skewed crossings)

Question #3Question #3Question #3Question #3

What foundation condition is advantageous for designing an arch?

Question #3Question #3Question #3Question #3

What foundation condition is advantageous for designing an arch?

◦ Rock