The beret sheet also has an elastic spiral buckle on the wind-resistant pull rod to adjust the length of the pull rod. There is a length indicating block inside the screw buckle. Turning the screw buckle until the rod end touches the length indicating block means that the pull rod is at the correct length. There is a lock nut at one end of the screw to prevent the lever from loosening. Each section of truss crosses two wind-resistant tie rods to withstand the transverse wind perpendicular to the bridge. When installing the tie rod, the correct length must be maintained, and the lock nut must be tightened to ensure that the bridge can withstand the wind force effectively.