Cementitious fibre reinforced composite cross arm

摘要

A cross arm is provided, for use in a support structure for conductors within an electrical grid. The cross arm is made of a cementitious composite and has a rough “C” cross sectional shape. Pairs of the cross arms are attached to utility poles in a parallel position on opposite sides of the utility pole. Alternatively, a single cross arm may be attached to a utility pole. Embedded metal or glass fiber reinforced polymer bars extend along the length of the cross arms.

主权项

1. A cross arm, comprising:
a) a back member having a top edge and a bottom edge; b) a top member extending from said top edge; c) a bottom member extending from said bottom edge; and wherein said cross arm is composed of a cementitious composite and wherein such members and cementitious composite composition allow the arm to support vertical, transverse and longitudinal loads, and wherein the top member and bottom member are integral with the back member and comprise curved flanges, said flanges being adjustable in size.