A COMPARISON

A comparison between Cable-Stay Concrete Bridge and the Immersed Tube Tunnel when it comes to CDM regulations 2007



A comparison between Cable-Stay Concrete Bridge and the Immersed Tube Tunnel when it comes to CDM regulations 2007

Cable-Stay Concrete Bridge

In terms of civil engineering, cable-stayed bridge is called the one whose board is suspended from one or more central pylons with shrouds. It differs from a suspension bridge cables because they have main battery to battery, holding the vertical side panel with cables and suspension bridges because they work mainly tensile, cable stayed and have parts that work in tension and compression other (Haggar, 2007). There are also variants of these bridges in the straps go from the board at the pillar located on one side, and then to the floor, or are attached to a single pillar as the Alamillo Bridge in Seville.

The cable-stayed bridges can be dated from 1595, of which design found in a book called Machinae Novae found written by Fausto Veranzio. Many early suspension bridges were first hybrid cable-stayed and suspension bridges, including the pedestrian bridge Dryburgh Bridge built in 1817 (Hess, 2007). James Dredge patentaría Victoria Bridge in Bath and later the Albert Bridge in London in 1872. The bridge designers discovered that the combination of both technologies allow more rigid building bridges, an example of this is the bridge from Niagara Falls built by John Augustus Roebling.

The oldest known example of a real cable-stayed bridge is the steel punte Bluff Dale, located in Bluff Dale, built in 1890 by EE Ruyon. In the twentieth century pioneering examples include A. Gisclard with Cassagnes bridge, in which the horizontal component of force of the cables is compensated by a horizontal strut wire, preventing thus the significant compression of the board. Eduardo Torroja, a Spanish engineer to design a cable-stayed bridge Tempul the aqueduct of the province of Cadiz, Spain in 1926 (Institute of Architects, 2009).

Alber Caquot build a new cable-stayed bridge with concrete deck on the channel Donzère-Mondragon Pierrelate becoming the first modern suspension bridge, but still greatly influenced by previous designs. The steel deck bridge Strösmund Bridge designed by Franz Dischinger is also cited as one of the first modern cable-stayed bridges. Other pioneers are key at this time Fabrizio de Miranda, Riccardo Morandi and Fritz Leonhardt. During this period were used very few cables as in the case of bridge Theodor Heuss in Düsseldorf 1958 (Kazda & Caves, 2007). However the use of few cords greatly increased the cost of construction so that modern cable structures have many more. Time has made ??the cable-stayed bridges are made ??in designing a bridge and move the cantilever bridges.

The cable-stayed bridges occupy a middle ground between the bridges of steel counterweight and pendants. A suspension bridge cables needed (and steel), and a counterweight, more steel for construction. Although from the standpoint of structural bridges would work in counter mode. This type of bridge is used in medium and large openings with lights ranging from 300 meters per ...