Patent ID: 8915043

Claim:
A wind turbine lattice tower structure, comprising: a plurality of structural members connected together to define an open lattice tower; a plurality of bolt connection assemblies at connection junctures of said structural members, said bolt connection assemblies further comprising: a pin component having a head and a shaft, said shaft comprising a textured friction-fit outermost circumferential surface of said pin component that extends through a respective said structural member; said shaft extending through and frictionally engaging within aligned through holes of first and second adjacent said structural members; said shaft further comprising a threaded internal bore, said threaded internal bore having threading that extends to a distal terminal end of said shaft such that said shaft does not extend beyond said threading of said threaded internal bore; a bolt component having a head and a threaded shaft that engages within said threaded internal bore, said threaded shaft having a constant diameter and extending to said head of said bolt component, said head further comprising a washer surface configured to lie flush against the lattice structure structural member through which said bolt component is inserted; and wherein said terminal end of said pin component spaced from said head of said bolt component and said threaded shaft comprising a free length section that extends into said threaded internal bore for increased distribution of a specified pretension of said bolt component.