ICEA Bridge Sessions final - bec. · PDF fileICEA Midyear Meeting July 10, 2003 Timber Bridges...

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Transcript of ICEA Bridge Sessions final - bec. · PDF fileICEA Midyear Meeting July 10, 2003 Timber Bridges...

  • ICEA Midyear Meeting July 10, 2003

    BRIDGE SESSIONSBRIDGE SESSIONS

    Innovative Bridge Applications Innovative Bridge Applications AND AND

    Physical Testing for Bridge Load Physical Testing for Bridge Load Rating Rating

    ICEA Midyear MeetingJuly 10, 2003

  • Session SpeakersSession SpeakersSession SpeakersJustin Doornink, Ph.D. StudentTravis Konda, Ph.D. StudentVan Robbins, M.S. StudentJ. S. Ingersoll, WHKS & Co.Terry Wipf, ISUF. Wayne Klaiber, ISUBrent Phares, CTRE Scott Neubauer, Iowa DOT

  • ICEA Midyear Meeting July 10, 2003

    Timber Bridges Timber Bridges A Viable A Viable AlternativeAlternative

    Terry Wipf, Doug Wood, Brent Phares, Travis Hosteng

    Bridge Engineering CenterIowa State University

  • Stress Laminated DeckStress Laminated DeckStress Laminated Deck

    Stressing Bar

    Lumber Laminations

    Wearing Surface

  • Approx. Span Lengths of 16 to 38 ft.

  • Longitudinal Glued Laminated DeckLongitudinal Glued Laminated Longitudinal Glued Laminated DeckDeck

    Wearingsurface Deck

    Stiffener beam

    Panel joint

    Connector

  • Approx. Span Lengths 19 to 40 ft.

  • Glued Laminated StringerGlued Laminated StringerGlued Laminated Stringer

    Wearing surfaceGlulam deck

    Glulam beam

  • Approx. Span Lengths 35 to 150 ft.

  • FRP Reinforced Glulam GirdersFRP Reinforced FRP Reinforced GlulamGlulam GirdersGirders

    FRP Laminate

  • Bridge Engineering Center ActivitiesBridge Engineering Center Bridge Engineering Center ActivitiesActivities

    Design SpecificationsDesign StandardsDesign ManualResearch NeedsTimber Coalition

  • Timber Bridges Tested -Highway and Railway

    Timber Bridges Tested Timber Bridges Tested --Highway and RailwayHighway and Railway

  • InstrumentationInstrumentationInstrumentation

    VEHICLEACCELEROMETER

    STORAGEOSCILLOSCOPE

    PC

    MOUNTED IN CAB OF VEHICLE

    TAPESWITCH

    TRANSDUCERSCONTROLLER

    PC

    -0.4

    -0.3

    -0.2

    -0.1

    0

    0.1

    0 100 200 300 400 500 600

    TAPESWITCH

    SIMU

    LTAN

    EOUS

  • DOF 3DOF 2DOF 1

    DOF 4C.G.

    DOF 5

  • Timber Plank Decks -- Load RatingTimber Plank Decks Timber Plank Decks ---- Load Load RatingRating

  • Timber Railroad BridgesTimber Railroad BridgesTimber Railroad Bridges