Fiber reinforced resin polymer mortar pole

摘要

Poles of this invention have an annular body with a wall structure comprising a number of fiber reinforced resin layers, which can be positioned to form an inside and/or outside portion of the wall structure. A portion of the layers are oriented longitudinally within the wall structure, and the wall structure also includes radially-oriented fiber reinforced resin layers. The pole includes one or more layers or a core of a composite material or polymer mortar disposed within one or more locations of the wall structure, e.g., as an intermediate layer and/or as part of the wall inside and/or outside portion. The pole can include an outside surface resistant to ultra violet radiation. Poles of this invention can be formed using a continuous process on a rotating mandrel, making use of differently positioned stations to form the different portions of the pole as the fabrication is moved axially along the mandrel.

主权项

1. A method for making a fiber reinforced resin pole having an annular body defined by a wall structure, the method comprising the steps of:
forming an inside wall structure of the pole by depositing a number of fiber reinforced resin layers onto a rotating mandrel, wherein a portion of the fiber reinforced resin layers are oriented longitudinally along a length of the pole and parallel to an axis of the mandrel; depositing a polymer mortar material onto the inside wall structure to form a pole intermediate core, wherein the polymer mortar material comprises a solid constituent in the form of particulate material and a liquid constituent, and wherein the liquid constituent is curable to a hardened state; and forming an outside wall structure over the intermediate core by depositing a number of fiber reinforced resin layers onto the intermediate pole wall structure, wherein a portion of the fiber reinforced resin layers are oriented longitudinally along the length of the pole and parallel to an the axis of the mandrel, wherein the polymer mortar material forming the core extends continuously from the inside wall structure to the outside wall structure; wherein the steps of forming the inside wall structure, forming the intermediate core, and forming the outside wall structure are performed as part of a continuous process where each step is performed sequentially, and wherein the pole has an axial compressive and buckling strength provided by the intermediate wall structure that is equal to or greater than an axial tensile strength provided by the inside and outside wall structures such that the pole has an optimized structure to fail under axial tension or axial compression at about the same time.