Steel structures are buildings or frameworks made primarily from steel, a strong and durable material. They are commonly used in construction due to their ability to support heavy loads and resist environmental factors like wind and earthquakes. Steel's flexibility allows for innovative designs, making it a popular choice for skyscrapers, bridges, and industrial facilities. The construction of steel structures typically involves the use of steel beams, columns, and trusses that are connected through welding or bolting. This method not only speeds up the building process but also reduces the amount of material needed, making it a cost-effective solution for modern architecture.