The design of vibration-resistance for long-and-big cable-stayed bridge is always the essential topic in large-span construction . As cable is the "lifeline" of bridges, how can we ensure its long life? It is necessary to consider this problem during the course of design. Reducing additional load of cable, optimizing the design, exerting the self-vibration surprising ability. Aerodynamics vibration method is the research direction of bridge design.
The new type vibration resistance indent cable is manufactured as below:extruding regularly-ar- ranged dimples on the smooth surface of the cable in order to improve the surface roughness makes the new
generation indent cable can interpret the waterway on the cable surface. At the same time, it can reduce the load on main tower and box girder without increase the wind drag factor. Thus the vibration- resistance is realized.