Numerical and experimental study on the steel-concrete connection for supporting structure of current power system

Tidal current energy is recently regarded as a vital source of ocean energy, because it is not only reliable and renewable but also its capacity is predictable compared to the other ocean energy sources including offshore wind and wave. Since the tidal current power systems are commonly installed at the rapid flow water area, it requires the safe and reliable supporting as well as the steady and high-efficiency current power generator. In addition, the rational construction and maintenance methods should be prepared to reduce the total cost of tidal current power generation systems. Until now, various types of current power structures have been developed such as pile-type, gravity-type, and jacket-type and so on, considering performance for construction work as well as soil and marine conditions.