A T-beam is a structural element commonly used in construction, characterized by its T-shaped cross-section. This design allows T-beams to efficiently support loads, making them ideal for floors and bridges. The top part of the "T" is called the flange, which resists bending, while the vertical part, known as the web, provides shear strength. T-beams are typically made from materials like concrete or steel, and they can be precast or cast in place. Their shape helps distribute weight evenly, reducing the amount of material needed while maintaining strength. This efficiency makes T-beams a popular choice in modern engineering.