The Pratt Truss is a type of structural framework commonly used in bridges and buildings. It features diagonal members that slope towards the center, which helps to efficiently distribute loads. This design allows for greater strength and stability, making it a popular choice in engineering. Invented by Thomas T. Pratt in the 19th century, the Pratt Truss is known for its simplicity and effectiveness. The vertical members carry compressive forces, while the diagonal members handle tensile forces. This combination makes the Pratt Truss both economical and reliable for various construction projects.