Steel bridges are a common type of bridge structure that use steel as the primary material for construction. Steel bridges are known for their durability, strength, and flexibility, making them suitable for a wide range of applications including highway bridges, pedestrian bridges, railway bridges, and more. Research in steel bridges aims to improve the design, construction, maintenance, and performance of these structures. This includes developing new materials and technologies to enhance the strength and durability of steel bridges, as well as studying the behavior of steel bridges under different environmental conditions and loads. Researchers in this area may also focus on innovative construction techniques, such as prefabrication and modular construction, to expedite the bridge-building process and reduce costs. Additionally, research in steel bridges may also address issues related to sustainability and environmental impact, such as designing bridges that are more energy-efficient and have a smaller carbon footprint. Overall, research in steel bridges plays a crucial role in advancing the field of bridge engineering and ensuring the safety and efficiency of these critical infrastructure elements.