Pumps - PT Hydraulics

®Tensioning ScenarioTension Floating Bridge TethersRoad BedConcrete PontoonsIn Seattle, Washington, the I-90 bridgecrosses Lake Washington. The bridge'sdeck sits on 20 concrete pontoons that aretethered to their anchors by 52 2-3/8 " steelcables. The task is to initially tension cableswhen bridge is built and then seasonallywhen the water level changes. Tension canbe as much as 80 tons.Anchor Cables• Tension 52, 2-3/8" cablesanchoring a floating bridge• Tension cables to 80 tons• Adjust tension when waterlevel changes (seasonally)• Accomplish this withoutdisruption to traffic.Tension RodCenter-Hole CylinderAdjustment TrackLakeBottomSocket78AAnchor Cable78ARev. 3-3-97