A non-invasive reinforcement solution of power transmission monopoles

This communication introduces a non-invasive reinforcement solution of power transmission monopoles and its merits when compared with other existing solutions. The mechanics principles of the non-invasive reinforcement solution: 1) increase the section inertial moment of monopole to resist lateral loads, i.e., wind load and earthquake. 2) expansive cement concrete with/without steel fiber produces high pressure between the steel-bar reinforced concrete and monopole shaft so that the lateral load is transferred from monopole shaft to base disk and the weld crack propagation is prevented.