Brad L Crane
Land Surveyors in Richmond, TX
License number
Utah 168814-2203
Issued Date
Apr 20, 1994
Expiration Date
Mar 31, 2013
Category
Engineer/Land Surveyor
Type
Professional Structural Engineer
Address
Address
Richmond, TX
Organization information
See more information about Brad L Crane at bizstanding.comBrad L Crane
6307 Kimisu Ln, Richmond, TX 77469
Status:
Inactive
Industry:
Business Services at Non-Commercial Site, Nonclassifiable Establishments, Whol Hardware
Professional information
Athletic Track With Post-Tensioned Concrete Slab
US Patent:
6435765, Aug 20, 2002
Filed:
Jul 10, 2000
Appl. No.:
09/613301
Inventors:
Brad L. Crane - Richmond TX 77469
Robin Melton - Katy TX 77494
Robin Melton - Katy TX 77494
International Classification:
E01C 508
US Classification:
404 31, 404 17, 404 32, 404 47, 404 70
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.