Difference between Deck Type and Through Type Bridge and their Components Naveen Choudhary 1 DEFERENCE BETWEEN DECK TYPE AND THROUGH TYPE RAILWAY BRIDGES • Deck-type bridges refer to those in which the road deck is carried on the top flange or on top of the supporting girders. • Through type bridge - The carriageway rests at the bottom level of the main load carrying members. In the through type plate girder bridge, the roadway or railway is placed at the level of bottom flanges. Mr. Naveen Choudhary, GEC Ajmer 2 DEFERENCE BETWEEN DECK TYPE AND THROUGH TYPE RAILWAY BRIDGES Mr. Naveen Choudhary,GEC Ajmer 3 DEFERENCE BETWEEN DECK TYPE AND THROUGH TYPE RAILWAY BRIDGES Through type deck bridge Mr. Naveen Choudhary,GEC Ajmer 4 DEFERENCE BETWEEN DECK TYPE AND THROUGH TYPE RAILWAY BRIDGES Mr. Naveen Choudhary,GEC Ajmer 5 DEFERENCE BETWEEN DECK TYPE AND THROUGH TYPE RAILWAY BRIDGES Mr. Naveen Choudhary,GEC Ajmer 6 Through Type Bridge Mr. Naveen Choudhary,GEC Ajmer 7 Through Type Bridge Mr. Naveen Choudhary,GEC Ajmer 8 Through Type Bridge Mr. Naveen Choudhary,GEC Ajmer 9 Deck Type Bridge Mr. Naveen Choudhary,GEC Ajmer 10 Deck Type Bridge Mr. Naveen Choudhary,GEC Ajmer 11 Deck Type Bridge Mr. Naveen Choudhary,GEC Ajmer 12 Cross-Section deck type bridge Mr. Naveen Choudhary,GEC Ajmer 13 Normal span ranges of bridge system Mr. Naveen Choudhary,GEC Ajmer 14 Normal span ranges of bridge system TYPE Maximum Span 500 m Steel arch bridge 240 m Steel bow-string girder bridge 1200 m Steel cable suspension bridge 30 m Steel plate girder 10 m Steel rolled beam bridge 180 m Steel truss bridge Mr. Naveen Choudhary,GEC Ajmer 15 Q. Draw a neat diagram through type plate girder with stringer cross beams, rails, sleeps. Mr. Naveen Choudhary,GEC Ajmer 16 Stringers Mr. Naveen Choudhary,GEC Ajmer 17 Q. Through type truss girder bridge with bracing and other arrangement Mr. Naveen Choudhary,GEC Ajmer 18 Mr. Naveen Choudhary,GEC Ajmer 19 Thank You Mr. Naveen Choudhary,GEC Ajmer 20 .