Presstressed Fencing Pole

Prestressed concrete poles are designed as members with uniform prestressing since they has to resist equal bending moments in opposite directions which is not the case for other prestressed structures. The magnitude of prestress required is half that of the normally provided for bending in one direction.Prestressed concrete is a system devised to provide sufficient precompression in the concrete beam by tensioned steel wires, cables, or rods that under working conditions the concrete has no tensile stresses or the tensile stresses are so low that no visible cracking occurs.Concrete Pole means an SFPUC Pole, including its foundation, made of concrete and specially designed and fabricated to bear wireless communications equipment in addition to street lights, in addition to electrical infrastructure servicing the Pole, such as pull boxes, underground conduits, and new electrical service ...