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Evolution of Bridges
Transcript of Evolution of Bridges
The Brooklyn Bridge is a suspension bridge
The Sunshine Skyway bridge is a cable-stayed bridge
The George Washington bridge is a double-decked suspension bridge
Evolution of Bridges
The First Bridges date back to 1-2 century Rome
Most Bridges were Arch Bridges
Bridges were mainly made of stone but for smaller bridges wood and rope were used
Some Bridges include, Pons Cestius, Ponte Milvio, and Ponte Sisto
Elliptical Arches were made as an improvement over Rome Arches so that bridges could be more supported
Some Bridges built in this time include, Upper Bridge, Old Bridge, and Stone Bridge
this arch has
Leonardo Da Vinci's Bridge design
Some Bridges include
The Monnow Bridge,
MODERN TIMES 17 Century- Now
More than ever a large variety of bridge designs are used but suspension bridges are increasingly popular along with cable stayed
Arched bridges are almost extinct for large spans of area
Although too many advancements to count have been made, a revolutionary one is computer designs so that you can almost make a perfect replica of a bridge without even beginning to build it
This Bridge was built July 1, 1940. The Bridge was so unstable that it moved with the wind. People who drove over it said it was similar to a roller coaster. Not even a full 5 months had passed when it finally collapsed. Unfortunetly a cocker-spaniel named Tubby was killed when it collapsed The main reason for it falling were the 8 foot long girders, not hardly long enough for a sturdy bridge.
By: Taylor, Josiah, and Ashley