IIT Madras, SERC Madras, Anna Univ., INSDAG

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IIT Madras, SERC Madras, Anna Univ., INSDAG STEEL BRIDGES INTRODUCTION CLASSIFICATION LOADS & LOAD COMBINATIONS ANALYSIS PLATE GIRDER BRIDGES TRUSS BRIDGES SUMMARY STEEL BRIDGES Teaching Resource in Design of Steel Structures IIT Madras, SERC Madras, Anna Univ., INSDAG

IIT Madras, SERC Madras, Anna Univ., INSDAG INTRODUCTION Advantages of Steel Bridges Dead Load to Live Load Ratio is Lower Longer spans, Lesser pier and foundation cost Lesser Construction Depth Lesser cost of embankment Rapid Construction Lower cost of money, Lesser disruption of traffic Less Disruption to Traffic in Urban Environment Lesser economic loss to community Better Performance Under fatigue, seismic load, impact load, blast load Longer Life Lower Life Cycle Cost STEEL BRIDGES Teaching Resource in Design of Steel Structures IIT Madras, SERC Madras, Anna Univ., INSDAG

IIT Madras, SERC Madras, Anna Univ., INSDAG CLASSIFICATION Type of Traffic Railway, Highway, Rail cum Roadway Type of Main Structural System Beam, Girder, Truss, Arch, Stayed, Suspended Position of Carriage way Deck type, Through type, Sem-through type STEEL BRIDGES Teaching Resource in Design of Steel Structures IIT Madras, SERC Madras, Anna Univ., INSDAG

TYPES OF BRIDGES AND SPAN RANGES Type of Bridge Cable suspended bridge Cable stayed bridge Arch Bridge Rigid Frame Bridge Girder Bridges Span Ranges (meters) 0 200 400 600 800 1000 1200 1400 1600 1800 STEEL BRIDGES Teaching Resource in Design of Steel Structures IIT Madras, SERC Madras, Anna Univ., INSDAG

MAIN STRUCTURAL SYSTEM Girder Bridge Plate Girder Orthotropic Deck Box Girder Truss Girder Composite Deck Rigid Frame Bridges Arch Bridges Cable Stayed Bridges Cable Suspended Bridges STEEL BRIDGES Teaching Resource in Design of Steel Structures IIT Madras, SERC Madras, Anna Univ., INSDAG

IIT Madras, SERC Madras, Anna Univ., INSDAG PLATE GIRDER BRIDGE STEEL BRIDGES Teaching Resource in Design of Steel Structures IIT Madras, SERC Madras, Anna Univ., INSDAG

IIT Madras, SERC Madras, Anna Univ., INSDAG PLATE GIRDER BRIDGE STEEL BRIDGES Teaching Resource in Design of Steel Structures IIT Madras, SERC Madras, Anna Univ., INSDAG

IIT Madras, SERC Madras, Anna Univ., INSDAG BOX GIRDER BRIDGE STEEL BRIDGES Teaching Resource in Design of Steel Structures IIT Madras, SERC Madras, Anna Univ., INSDAG

IIT Madras, SERC Madras, Anna Univ., INSDAG BOX GIRDER BRIDGE STEEL BRIDGES Teaching Resource in Design of Steel Structures IIT Madras, SERC Madras, Anna Univ., INSDAG

IIT Madras, SERC Madras, Anna Univ., INSDAG BOX GIRDER BRIDGE STEEL BRIDGES Teaching Resource in Design of Steel Structures IIT Madras, SERC Madras, Anna Univ., INSDAG

IIT Madras, SERC Madras, Anna Univ., INSDAG BOX GIRDER BRIDGE STEEL BRIDGES Teaching Resource in Design of Steel Structures IIT Madras, SERC Madras, Anna Univ., INSDAG

BOX GIRDER BRIDGE (Composite Deck) STEEL BRIDGES Teaching Resource in Design of Steel Structures IIT Madras, SERC Madras, Anna Univ., INSDAG

BOX GIRDER BRIDGE (Orthotropic Deck) STEEL BRIDGES Teaching Resource in Design of Steel Structures IIT Madras, SERC Madras, Anna Univ., INSDAG

TRUSS BRIDGE (suspended central span) STEEL BRIDGES Teaching Resource in Design of Steel Structures IIT Madras, SERC Madras, Anna Univ., INSDAG

TRUSS BRIDGE (continuous span) STEEL BRIDGES Teaching Resource in Design of Steel Structures IIT Madras, SERC Madras, Anna Univ., INSDAG

TRUSS BRIDGE (sloping chord) STEEL BRIDGES Teaching Resource in Design of Steel Structures IIT Madras, SERC Madras, Anna Univ., INSDAG

TRUSS BRIDGE (Bailey Bridge) STEEL BRIDGES Teaching Resource in Design of Steel Structures IIT Madras, SERC Madras, Anna Univ., INSDAG

IIT Madras, SERC Madras, Anna Univ., INSDAG TRUSS BRIDGE STEEL BRIDGES Teaching Resource in Design of Steel Structures IIT Madras, SERC Madras, Anna Univ., INSDAG

TRUSS BRIDGE (connection gusset) STEEL BRIDGES Teaching Resource in Design of Steel Structures IIT Madras, SERC Madras, Anna Univ., INSDAG

IIT Madras, SERC Madras, Anna Univ., INSDAG ARCH BRIDGE STEEL BRIDGES Teaching Resource in Design of Steel Structures IIT Madras, SERC Madras, Anna Univ., INSDAG

CABLE SUSPENDED BRIDGE STEEL BRIDGES Teaching Resource in Design of Steel Structures IIT Madras, SERC Madras, Anna Univ., INSDAG

CABLE SUSPENDED BRIDGE STEEL BRIDGES Teaching Resource in Design of Steel Structures IIT Madras, SERC Madras, Anna Univ., INSDAG

CABLE SUSPENDED BRIDGE STEEL BRIDGES Teaching Resource in Design of Steel Structures IIT Madras, SERC Madras, Anna Univ., INSDAG

IIT Madras, SERC Madras, Anna Univ., INSDAG CABLE STAYED BRIDGE STEEL BRIDGES Teaching Resource in Design of Steel Structures IIT Madras, SERC Madras, Anna Univ., INSDAG

IIT Madras, SERC Madras, Anna Univ., INSDAG SUMMARY Different types of Bridge systems are economical over different span lengths Details of common bridge systems were discussed An example of truss type bridge was presented Construction details of a suspension bridge was presented. STEEL BRIDGES Teaching Resource in Design of Steel Structures IIT Madras, SERC Madras, Anna Univ., INSDAG