Structural beams are long, sturdy pieces of material used in construction to support loads and provide stability to buildings and other structures. They are typically made from materials like steel, concrete, or wood, and come in various shapes, such as I-beams or rectangular beams. Their primary function is to bear weight from above and distribute it evenly to the supports below. These beams are essential in creating frameworks for bridges, roofs, and floors, ensuring that structures can withstand forces like gravity and wind. Properly designed and installed beams help maintain the integrity and safety of a building, making them a crucial element in engineering and architecture.