To maintain a gazebo tensile structure, regularly clean the fabric with mild detergent and water to prevent dirt and stains. Inspect for minor tears and repair them promptly. Check tension cables and steel frames for rust or loosening, tightening and applying anti-corrosion treatments as needed. Ensure all anchoring points, bolts, and fittings are secure to maintain structural stability. Protect the structure from extreme weather conditions when possible. These steps ensure durability and a longer lifespan for your tensile structure.