Spanningwerk

Spanningwerk, also known as tensile structure or membrane structure, refers to a construction technique where structural integrity is achieved through the use of tension. These structures utilize flexible materials, such as fabric or membranes, that are supported by a system of cables, masts, or arches. The forces within the material are carefully balanced, creating a stable and often lightweight form.

The design of spanningwerk relies on pre-stressing the membrane material. This pre-stress is achieved by stretching the material beyond its elastic limit and then anchoring it to a rigid frame or point. The inherent tension within the membrane provides resistance to external loads like wind and snow. Common applications include stadium roofs, exhibition halls, and architectural canopies. The aesthetic possibilities are vast, allowing for fluid and organic shapes that are difficult to achieve with traditional construction methods. Spanningwerk offers advantages in terms of material efficiency, speed of construction, and the creation of large, unobstructed interior spaces. The engineering behind these structures requires precise calculations to ensure stability and durability.