Wind turbine tower and system and method for fabricating the same
A system and method for fabricating a wind turbine tower is provided. The method includes providing at least one fiber reinforced plastic (“FRP”) strand, embedding a first portion of the FRP strand into a first concrete segment, and embedding a second portion of the FRP strand into a second concrete segment such that a third portion of the FRP strand extends from the first concrete segment to the second concrete segment. The method further includes displacing at least one of the first concrete segment and the second concrete segment relative to the other such that a tension is applied to the third portion of the FRP strand.
1. A wind turbine tower including a plurality of tower sections, at least one of said tower sections comprising:
a first concrete flange;
a second concrete flange formed separately from said first concrete flange;
a concrete wall formed separately from said first concrete flange and said second concrete flange, said concrete wall positioned between said first concrete flange and said second concrete flange; and
a fiber reinforced plastic (“FRP”) strand comprising a first portion embedded in said first concrete flange and having a first tension, a second portion embedded in said second concrete flange and having a second tension, and a third portion embedded in said concrete wall and having a third tension such that said first concrete flange and said second concrete flange are coupled to said concrete wall via said FRP strand, wherein at least one of the following conditions is satisfied: said first portion is directly bonded to said first concrete flange, said second portion is directly bonded to said second concrete flange, and said third portion is directly bonded to said concrete wall.
2. The wind turbine tower in accordance with claim 1 , wherein the third tension is different than the first tension and the second tension.
3. The wind turbine tower in accordance with claim 2 , wherein the first tension is substantially the same as the second tension.
4. The wind turbine tower in accordance with claim 1 , wherein at least one of said first concrete flange and said second concrete flange is fabricated from an ultra-high performance concrete (“UHPC”).
5. The wind turbine tower in accordance with claim 4 , wherein said concrete wall is fabricated from a concrete material comprising a composition that is different than said UHPC.