| 摘要 |
The specification discloses a stirrup mat which a pipe producer manually forms in or on, and assembles to, a concrete pipe reinforcing cage, which assembly is then cast into a concrete pipe. The mat includes a plurality of parallel stirrup members, each having multiple projections, joined by just enough tie wires, 2 to 6, to give the mat dimensional stability. The tire wires are made of a flexible or ductile material having sufficient flexibility or ductility to allow the mat to be manually, arcuately shaped so as to conform to the curvature of the cage to which it is assembled.
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