REINFORCEMENT FOR LARGE CALIBER CONCRETE PIPE

摘要

PURPOSE: A reinforcing member for a large-diameter concrete pipe is provided to cost-effectively reinforce and efficiently the strength of a concrete pipe. CONSTITUTION: A reinforcing member for a large-diameter concrete pipe comprises a first spiral reinforcing member(11), a second spiral reinforcing member(12), a plurality of bridges(13), and a plurality of longitudinal reinforcing members(14). The first spiral reinforcing member spirally winds a rectangular sectional plate to have a given pitch and the same radius so that the long side of a section faces in a radial direction. The second spiral reinforcing member spirally winds a rectangular sectional plate to make the long side of a section face a radial direction to have the same pitch to the first spiral reinforcing member and a larger radius.