Athletic track with post-tensioned concrete slab
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United States of America Patent
Stats
-
Aug 20, 2002
Grant Date -
N/A
app pub date -
Jul 10, 2000
filing date -
Jul 10, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An athletic track having a post-tensioned concrete slab supporting a resilient surface. The athletic track has opposed, parallel rectangular side areas and opposed semi-circular end areas connecting the side areas. The concrete slab is cast in place without requiring expansion joints between segments. Cables are cast into the slab for providing a tension load in the concrete slab. A first set of cables is tilted away from the perpendicular in a first direction while a second set of cables is parallel to the edges of the rectangular areas such that members of the second set of cables cross members of the first set of cables. A third set of circumferential cables is provided in the semi-circular end areas. A fourth set of cables intersecting the circumferential cables is non-radially disposed. The slab has a relatively flat lower surface. Pour strips situated along a line of symmetry are provided between adjacent quadrants of the end areas.
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Cited Art Landscape
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