| 摘要 |
Tubular wire grid reinforcing cages for concrete pipe or similar structures are constructed from a plurality of prefabricated peripheral segments or cage sections, each section extending the full axial length of the completed cage and defining a portion only of the peripheral extent of the cage. By prefabricating the cage sections as individual segments, the individual segments or cage sections can be more efficiently designed and constructed to counteract the stresses encountered in the completed pipe, which stresses differ substantially at various points about the pipe periphery. The segmental cage section construction further enables the prefabricated sections to be compactly nested for shipping and storage, as well as simplifying problems of constructing cages for bell mouthed pipe.
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