Tensioned structures are architectural designs that use tension to support loads, often made from materials like cables or membranes. These structures rely on the strength of materials to withstand pulling forces, allowing for lightweight and efficient designs. Common examples include tensioned fabric roofs and cable-stayed bridges. The key principle behind tensioned structures is that they distribute forces evenly, minimizing material use while maximizing stability. This approach can create large open spaces without the need for extensive support columns, making them popular in modern architecture and engineering.