Vertical joint assembly for wind turbine towers

A tower assembly for a wind turbine, comprising:

• at least one generally cylindrical tower section, the tower section being split into at least a first vertical tower section and a second vertical tower section, each of the first and second vertical tower sections defining an interior wall and an exterior wall separated by a thickness;
• a joint assembly securing the first and second vertical tower sections together, the joint assembly comprising:
• a first L-flange mounted to the interior wall of the first vertical tower section, the first L-flange facing in a first direction;
• and, a second L-flange mounted to the interior wall of the second vertical tower section, the second L-flange facing away from the first direction, the first and second L-flanges separated from the interior walls of the first and second vertical tower sections via an open space;
• wherein the first and second L-flanges are mounted to the interior walls of the first and second vertical tower sections via one or more first fasteners that extend from the first and second L-flanges into the open space and through at least a portion of the thicknesses of the first and second vertical tower sections, respectively.