奥克兰海湾新桥.ppt

Vong Toan Senior Bridge Engineer, Caltrans Elevation and Plan View Dual Box Girder Bike/Pedestrian Path Tower Foundation Steel Framing Plan Elevations Steel Framing Plan Pile Tower Anchorage Layout Tower Anchorage Details Tower Section and Shear Links Tower Diaphragms Tower Shear Link Bridge Plan ( Cable and Saddles) Looping Cable Anchorage Alternative - Plan Cap beam Two deviation saddle, one jacking saddle Looping Cable Anchorage Alternative - Elevation Roadway elevation differential Independent Tie - down systems Cable S-Wire Wrapping Tower Saddle Pipe Beam Elevation Section F-F Swiveling Joint Seal Assembly SAS Suggested Construction Sequence (1) SAS Suggested Construction Sequence (2) YBI Structures Bent WB1 Section A-A Typical Section Section B-B Section B-B YB4–E1 Section C-C YB4–E1 Section D-D YB4–E1 Section E-E YB4–E1 Steelflex? Center Beam Neoprene Sealing Element (Max Seismic Opening = 127 mm) Steelflex? Edge Beam Support Bar Stirrup Pivot Box Elastomeric Springs Bearings SAS Selected Quantities Structural Concrete = 25,000 M3 Bar Reinforcing Steel = 5,200,000 Kg Structural Steel = 56,000,000 Kg Orthotropic Box Girder = 30,500,000 Kg Tower Shaft = 13,500,000 Kg Main Cable = 5,200,000 Kg Suspender Wires = 3,500,000 Kg Footing = 3,500,000 Kg Furnished Piles (2.5 m x 95 mm) = 2200 meters SFOBB East Span Seismic Safety Project Single Tower - SAS Transverse Elevation Looking East Transverse Elevation Looking East TYPICAL TOWER CROSS SECTION 3000 30° 90° Symmetrical about Tower 2000 Strut Type 3 60° 90° Bridge Symmetrical about Strut Type 1,2 ( Typ ) C L C L 3 Spaces @ 560 Symm about 1500 660 Link Shear Connection Tower 1145 1680 Strut Type 1 1500 Bridge C L Connection Tower Link Shear 660 PLAN VIEW Connection Shear Link Link ELEVATION Shear Tower Connection Tower 1500 1500 C L Bridge Symm about ( Typ ) 5.4mm Zinc Galvanized Wire 127 Wire PWS Strand with Grease Application of Individual Wire 17,400 Wire Main Susp