| Abstract: | Durability of the gates of locks and weir plants. Hydraulic steel constructions are special steel structures. They have a high relevance for the operability and bearing capacity of a water‐structural plant and are subject to special requirements and operating conditions. Therefore high demands are made on their durability. Due to the immersion medium “Water” the steel structures of the gates of shiplocks and movable weirs are exposed to corrosion hazards exceedingly. Gates of ship locks are stresses by fatigue additionally. Concerning the steel structures of weirs corrosive, abrasive and/or hydrodynamic effects dominate. An overview will be given which methods and possibilities are used to achieve an appropriate durability during the intended service life under these circumstances. In this context the importance of a regular structure‐maintenance will be shown too. Furthermore new innovative gate structures may offer advantages with regard to fatigue strength, simplified maintenance and inspection possibilities and favorable corrosion protection characteristics. |
