| 摘要 |
A centrifugally cast hollow fiberglass reinforced plastic (FRP) column having angled corners and straight sides. Interiorly of the column adjacent each corner are angled corner fillers that have straight angled sides adhered to straight interior wall surfaces of the column adjacent the respective corners. During molding, the corner fillers are supported within the mold with their straight sides in parallel spaced relation to the straight interior walls of the mold adjacent the respective mold corners a distance slightly greater than the desired minimum wall thickness of the column, whereby when the mold is rotated, uncured FRP material within the mold will flow by centrifugal force into engagement with the interior walls of the mold and around the corner fillers into the space between the corner fillers and interior walls of the mold adjacent the respective mold corners to form a column having a substantially uniform FRP wall thickness.
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