Design method of top beam device with energy absorption and scour prevention functions

The invention provides a design method of a top beam device with energy-absorbing and anti-impact functions, which comprises the following steps: setting the top beam device with the energy-absorbing and anti-impact functions, setting the distance S between the bottom surface of a top beam cover plate and the top of an energy-absorbing and anti-impact material when a top beam is not stressed, setting the distance h between the bottom surface of the top beam cover plate and the top of a limiting ring, and setting the thickness of the energy-absorbing and anti-impact material. A reasonable design method is provided for the impact energy-absorbing protection device by arranging a plurality of rubber metal springs and an energy-absorbing anti-impact material and designing the gap distance between the top beam cover plate and the energy-absorbing anti-impact material, the gap distance between the top beam cover plate and the top of the limiting ring and the thickness of the energy-absorbing anti-impact material. 本