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Structural steel is made from iron and carbon, with additives like manganese and alloys for strength. It can be formed into various shapes and sizes, with I-beams being the most common. Steel requires specialized equipment to cut and drill, but is inexpensive to produce, requires less maintenance, and can be recycled. Famous landmarks made with structural steel include the Seagram Building, Eiffel Tower, and Brooklyn Bridge.
Structural steel is used in bridges, buildings and other types of structures around the world. During its manufacture, steel is fabricated to meet applicable specifications of a project such as strength, chemical composition, and shape. The main ingredients of structural steel are iron and carbon. Common additives found in addition to iron and carbon are manganese, alloys, and some chemicals, which improve its strength and durability.
Steel is the product of mixing iron with carbon. When it is formed into particular shapes and sizes, it is referred to as structural steel. The I-beam is the most common type used today. Skyscrapers, stadiums, and the shipbuilding industry all incorporate some type of I-beam construction.
Various shapes, sizes and gauges can be formed from structural steel. Common shapes include I-beam, channels, and corners. Once produced, the steel is cut to size according to project specifications. Other forms of structural steel include rolled plates and flat plates.
This material requires specialized equipment to cut, drill and manufacture it to applicable specifications. Steel is cut into lengths most often using a typical band saw. Another tool used to cut steel into lengths or to cut irregular openings is a cutting torch. For highly specialized projects, the correct specifications are programmed into a CNC computerized coping machine. Holes are drilled into the steel using a CNC beam drill line, which automatically feeds it along conveyor belts, also aligning it into the correct position for drilling.
The benefits of using structural steel are that it is inexpensive to produce, requires less maintenance, and is cheaper to insure than other traditional construction methods. As long as it is protected from rust, steel retains its strength indefinitely. Another benefit of using structural steel is that it can be recycled. Disadvantages include higher transportation costs due to its weight and that without proper maintenance it is prone to rust or corrosion. It also requires large amounts of energy to produce.
Some examples of famous landmarks made with structural steel include the Seagram Building, the Eiffel Tower and the Brooklyn Bridge. The Seagram Building stands out as one of the most well-designed buildings in the world. Completed in 1889, the Eiffel Tower in Paris, France is probably the most famous steel structure in the world. The Brooklyn Bridge, completed in 1883, spans the East River in New York. The bridge connects Brooklyn to Manhattan and is a United States National Historic Landmark.
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