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Bridges of Rome

Citro Paolo. Bridges of Rome. School I.T.G. “E. MASI” FOGGIA (Italy). Roman bridges, built by ancient Romans, were the first large and lasting bridges built. Roman bridges were built with stone and had the arch as its basic structure. Most utilized concrete as well.

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Bridges of Rome

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  1. Citro Paolo Bridges of Rome School I.T.G. “E. MASI” FOGGIA (Italy)

  2. Roman bridges, built by ancient Romans, were the first large and lasting bridges built. Roman bridges were built with stone and had the arch as its basic structure. Most utilized concrete as well. Built in 142 BC, the Pons Aemilius, later named Ponte Rotto (broken bridge) is the oldest Roman stone bridge in Rome, Italy. Bridges of Rome

  3. Usual characteristics of Roman Bridges Most of them slope slightly 1 Many are more than 5 meters wide 2 Many have rustic work 3 Stones linked with dovetail joints or metal bars 4 Indents in the stones for gripping tools to hold onto 5 The stonework has alternating stretcher and header courses; i.e. one layer of rectangular stones is laid lengthwise, and the next layer has the ends facing outwards 6 Bridges of Rome

  4. The four kinds of bridges and some combinations A The beam or truss bridge is, in effect, a pair of girders supporting a deck spanning the gap between two piers. Such a beam has to withstand both compression in its upper parts and tension in its lower parts. Where it passes over supports, other forces come into play. A beam may be a hollow box girder or an open frame or truss. B An arch bridge can be designed so that no part of it has to withstand tension. Concrete is well suited to arched bridge design. When reinforced concrete is used, a more elegant and sometimes less costly arch can be designed and most concrete arch bridges are reinforced. Bridges of Rome

  5. C A suspension bridge consists, basically, of a deck suspended from cables slung between high towers. The cables of high tensile steel wire can support an immense weight. The towers are in compression and the deck, often consisting of a long slender truss (used as a hollow beam), is supported at frequent intervals along its length. D A cantilever bridge is generally carried by two beams, each supported at one end. Unlike a simple beam supported at both ends, the cantilever must resist tension in its upper half and compression in its lower. Bridges of Rome

  6. Elio Bridge (133 a. c.) Milvio Bridge (109 a.c.) Margherita Bridge (1891) Bridges in Rome Mazzini Bridge (1900) Sisto Bridge (1475) Umberto I Bridge (1895) Matteotti Bridge (1924) Garibaldi Bridge (1888) In the World

  7. Some examples of Roman bridges in the World THE END

  8. Elio Bridge

  9. Margherita Bridge

  10. Matteotti Bridge

  11. Umbero I Bridge

  12. Milvio Bridge

  13. Mazzini Bridge

  14. Garibaldi Bridge (1888)

  15. Sisto Bridge (1475)

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