Lecture02 - Elements of a Bridge

Lecture02 - Elements of a Bridge - Lecture # 02 The...

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Unformatted text preview: Lecture # 02 The Elements of a Bridge The stone clapper Darth River (Dartmoor) bridge, built in 111 BC by Celtic tribes of Scotland is shown above. It has the same fundamental elements of a modern highway bridge: a super-structure and a sub- structure. The stones are quality grade granite. Julius Caesars temporary bridge across the Rhine in 56 BC, was built in 3 days, and then dismantled in one day after a successful campaign in Germany. (The Conquest of Gaul, by J. Caesar, 50 BC). Note the basic elements still present in todays bridges. The Roman aqueduct/bridge Pont du Gard in France is over 19 centuries old. Elements of the Superstructure. Destroyed bridge over the Tigris, showing the abutment seat and remaining girder. A modern slab-on-stringer highway bridge, with steel stringers and lateral bracing Preparing the formwork to cast the reinforced concrete slab upon the steel stringers. Note the welded shear studs on the upper flange of the steel stringer, to provide shear transfer between these two elements. Galvanizing an 80 long beam, 4 deep, weighing 26 kips at Gregory in Canton, Ohio. Welded curved steel stringers.Welded curved steel stringers....
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Lecture02 - Elements of a Bridge - Lecture # 02 The...

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