All you need about structures

Tower Bridge, is a type os suspension structure and is supported to traction. Is a bridge that crosses the River Thames in London. It combines the characteristics of swinging bridge and suspension bridge. It is built in neo-Gothic Victorian style , and is located near the Tower of London, which gives it its name. During the second part of the 19th century, economic development in East London led to the need for a new passage over the river, below the London Bridge . The traditional fixed bridge could not be built because it would cut off access to the port that at that time was located in the Pool of London , between the London Bridge and the Tower of London . A tunnel under the Thames , Tower Subway , was opened in 1870, but only served for pedestrian traffic. In 1875 a special committee was created to find a solution to the passage over the river, which called for a contest to choose the design of the future bridge. More than fifty designs were proposed, including one by