Bridge+Use+and+Application



The Tappen Zee Bridge is a cantilever bridge in New York City spanning over the Hudson River with a length 16,013 feet. The Tappen Zee bridge is made from steel and underwater concrete, so that it is supported well. On either side of the bridge there are nineteen deck truss spans that connect to abutments on either side of the bridge. It is also reinforced with wood, because together the wood, the steel and the concrete make it a very durable, strong bridge.

This is a Suspension Bridge these bridges are mostly used for covering a large amount of distance. They are supported by cables and out of all bridges they span the longest. For example they can cover a large amount of water, or a canyon. The span is roughly long between the abutments. The towers can be any distance apart, and the bridge would still remain up if the cables are tight and in place.



This is an arch bridge, the arch bridge is supported at the sides and at the bottom. This is used in moutainess places and over water. They aren't always big, but at times they are. For example like the one in the picture the Dubai bridge. The arch is a good way to keep the bridge up. The span of an arch bridge is normally around 250 feet long. This is a beam bridge, the beam bridge is supported from the bottom of the deck. This bridge uses small parts to create a large bridge. This bridge can be used in a variety of diff erent places. For example mountainess places, over water, and through cities.

Suspension bridges like this one are ussually made in places with warm climates, this is because it is easy to find materials such as wood to build the bridge. this bridge doesnt need to be made out of steal or stone because it doesnt have to worry about winds breaking it, or heavy loads going across it. Nor does it have to worry about being so close to the ground because This is an arch bridge. This bridge is primarily made of tight fitting stone. the Design of the stone is what gives it strength to stay together and hold a large load. The opening of the curved structure attached to abutment on both sides allow the bridge to stay together and be extremely strong. The abutments transfer horizontal and vertical forces down from the arch.