Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing
Patent
1995-07-06
1997-02-04
Bell, James J.
Stock material or miscellaneous articles
Hollow or container type article
Polymer or resin containing
5230915, 5230916, 5230917, 52DIG7, 428120, 428703, 428902, B29D 2200
Patent
active
055995993
ABSTRACT:
Fiber reinforced plastic FRP formed about concrete piles and columns. The FRP components generally includes an exterior shell and an interior pultruted component. The exterior shell can include multilayers of fibers wrapped in straight hoop patterns in single sheets with or without longitudinal axial fibers. Alternatively the exterior shell can include angled wrapped fibers. The interior FRP pultruted component comes in various forms such as pultruted ribs, crossed attached ribs, interior co-axial concentric cylinders and additional shapes such as ones having an H cross-shaped pattern. The FRP materials can consist of fiber and resin such as a preferred embodiment of approximately 60% glass and 40% polyester. Other fiber type materials include but are not limited to glass, carbon, Kevlar, combinations thereof, and the like. Types of resin include but are not limited to polyester, vinylester, epoxy, combinations thereof, and the like. The invention has the effect of waterproofing and insulating the exposed concrete columns and piles of infrastructure supports and protecting any steel/metal reinforcing bars and cages in the the cement cores from the effects of corrosion. The invention further increases the ductility of concrete support columns and piles without the use of additional steel reinforcing bars and cages. The invention can additionally enhance the compressive, flexural and shear strengths of concrete support columns and piles especially for infrastructures such as bridges, buildings and the like used in hurricane and seismic zone locations.
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Mirmiran Amir
Shahawy Mohsen
Bell James J.
Steinberger Brian S.
University of Central Florida
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