The present application concerns a method for manufacturing a tubular brace member. Moreover, the present application concerns a lattice tower comprising such a tubular brace member, preferably manufactured according to said method.
In the method according to the invention, one or more sections are removed from at least one end of a circular hollow section such that one or more curved wall sections remain. Each curved wall section is deformed into a respective gusset plate connection member having a substantially flat connection section, by pressing together molds in between which the curved wall sections are arranged. The flat connection section of each gusset plate connection member comprises a through hole allowing the gusset plate connection members to be connected to a gusset plate of a corner member of a lattice tower.