| 摘要 |
A spacer member for positioning and retaining steel reinforcing bars in a concrete structural member such as a round-column. The spacer member is defined by a circular, ring-like main body section having a plurality of outer extensions and a plurality of interior projections. Each of the outer extensions has a remote edge adapted to abut the inner surface of a form for the structural member. Each of the interior projections is separated from next adjacent interior projections by a space, into which a reinforcing bar is intended to be inserted. The spaces are provided at least at every 45 degree and 60 degree intervals along the circle formed by the body member. The reinforcing bars are adapted to be securely tied in their respective spaces by means of securing means that is adapted to be wrapped around the bar and around a hook-like formation formed on the interior projection.
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