A major advantage of arch bridges is the fact that they are structurally sound for short spans, while a major disadvantage includes the amount of building materials needed to construct an arch bridge, even if it is of short length. Other advantages of arch bridges include the inexpensive costs of building materials such as stone and brick, and the ability to build more arches to span a wider distance.Know More
Another disadvantage of an arch bridge is that the bridge requires more support from the sides than a normal bridge. An arch bridge must be situated where there are structurally sound banks or abutments in order to help support it.
An arch bridge is aesthetically pleasing, but it can be difficult to find local materials for the construct of the bridge. In modern times, concrete is a popular material to build an arch bridge, however, it is much more costly than stone or brick.
The modern version of the arch bridge is known as the long-span through arch bridge. While not as aesthetically pleasing, it is a structurally sound bridge comprised of lighter materials. It can be made of steel and will cover a longer span. An example of this type of bridge is the Sydney Harbor Bridge that is found in Australia.Learn more about Architecture
John Jacob Rascob built the Empire State Building because he was competing with other entrepreneurs to construct the tallest skyscraper in the world. His main competitor was Walter Chrysler, who was attempting to build the world's tallest building in New York City at the same time.Full Answer >
Materials used to construct the Eiffel Tower include wrought iron, steel and paint. Wrought iron forms the majority of the tower structure while steel provides additional support and paint adds aesthetic appeal along with protection from corrosion.Full Answer >
There are numerous types of bridges, including arch bridges, beam bridges, truss bridges, cantilever bridges and suspension bridges. There are a few other types of bridges as well, but they typically can be listed under the above categories as they are adaptations of these main types.Full Answer >
Bridges are built with cables, girders, arches and reinforced steel and concrete to channel the weight of the bridge onto abutments at either end of the structure and piers along the span of the bridge that rest on concrete pilings driven into the land or water beneath them. Types of bridges include, suspension, arch and cablestayed.Full Answer >