Patent US5339475A successfully refreshed from Google Patents.
US5339475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Load supporting structure
Assignee: VAUGHAN LOAD SUPPORTING STRUCTURES Inc
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Filing: 1992-05-27
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Granted: 1994-08-23
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Expires: 2012-05-27
Abstract
Abstract A load supporting structure includes a pair of beams with tension members extending between them. A deck formed from fiber reinforced concrete is supported on the beams with fasteners extending between the beams and deck. The tension members provide sufficient rigidity to allow an arching action to develop within the deck and thereby avoid the need for steel reinforcements within the deck.
Inventors
- 👤 Leslie G. Jaeger
- 👤 Aftab A. Mufti
- 👤 Baidar Bakht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:00
CPC Classifications
E; E01; E01D; E01D19/00; E01D19/12; E01D19/125; E01D2/00; E01D2/02; E04; E04B; E04B5/00; E04B5/16; E04B5/17; E04B5/23; E04B5/29; E01D2101/00; E01D2101/20; E01D2101/24; E01D2101/26; E01D2101/266; E01D2101/268
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
203 words
A load supporting structure to span a pair of spaced vertical supports, said structure comprising a pair of laterally spaced beams extending between the supports and each having an upwardly directed support surface, tension members extending between said beams and being secured thereto to inhibit relative lateral movement of said support surfaces, a pair of transverse structural members extending between said beams at longitudinally spaced locations and each having an upwardly directed support surface, a deck supported on said support surfaces of said beams and said structural members and having an upper load supporting surface and a lower load transfer surface supported on said support surfaces, and fastening means extending between said support surfaces and said deck about the periphery thereof to inhibit relative movement between said deck and said support surfaces, said deck being formed from concrete impregnated with non-metallic fibres and being devoid of structural steel reinforcement between said support surfaces, said deck being dimensioned to transfer loads imposed on said upper surface of the deck to said support surfaces through arching action within said deck, said support surfaces providing sufficient stiffness to the periphery of said deck to sustain compressive forces within said deck upon application of a load thereto.
Claim 2
Dependent Claim
203 words
A load supporting structure to span a pair of spaced vertical supports, said structure comprising a pair of laterally spaced beams extending between the supports and each having an upwardly directed support surface, tension members extending between said beams and being secured thereto to inhibit relative lateral movement of said support surfaces, a pair of transverse structural members extending between said beams at longitudinally spaced locations and each having an upwardly directed support surface, a deck supported on said support surfaces of said beams and said structural members and having an upper load supporting surface and a lower load transfer surface supported on said support surfaces, and fastening means extending between said support surfaces and said deck about the periphery thereof to inhibit relative movement between said deck and said support surfaces, said deck being formed from concrete impregnated with non-metallic fibres and being devoid of structural steel reinforcement between said support surfaces, said deck being dimensioned to transfer loads imposed on said upper surface of the deck to said support surfaces through arching action within said deck, said support surfaces providing sufficient stiffness to the periphery of said deck to sustain compressive forces within said deck upon application of a load thereto.
Claim 3
Dependent Claim
33 words
A load supporting structure according to claim 1 in which said support surfaces are formed on an upper edge of each of said beams and said tension members extend between said upper edges.
Claim 4
Dependent Claim
21 words
A load supporting structure according to claim 1 wherein said tension member are straps attached to said beam at spaced intervals.
Claim 5
Dependent Claim
18 words
A load supporting structure according to claim 3 wherein the straps are disposed perpendicular to the said beams.
Claim 6
Dependent Claim
31 words
A load supporting structure according to claim 1 wherein said metallic fibres are distributed within concrete with greater than 5 parts by volume of fibre to 1000 parts by volume concrete.
Claim 7
Dependent Claim
22 words
A load supporting structure according to claim 1 wherein said tension members are spaced from said load transfer surface of said deck.
Claim 8
Dependent Claim
13 words
A load supporting structure according to claim 5 wherein the fibres are polypropylene.
Claim 9
Dependent Claim
23 words
A load supporting structure according to claim 1 wherein said deck has a tensile strength not less than 20% of its compressive strength.
Claim 10
Dependent Claim
34 words
A load supporting structure according to claim 1 wherein said load supporting surface and said load transfer surface are spaced apart a distance that is at least 1/14 of the span between said beams.
Claim 11
Dependent Claim
28 words
A load supporting structure according to claim 5 wherein said fibres have a diameter not more than 0.05 mm and a length of not more than 40 mm.
Claim 12
Dependent Claim
23 words
A load supporting structure according to claim 1 wherein said transverse structural members are disposed to provide maximum stiffness in a horizontal plane.
Claim 13
Dependent Claim
15 words
A load supporting structure according to claim 11 wherein said structural members are channel members.
Claim 14
Dependent Claim
27 words
A load supporting structure according to claim 1 wherein said support surfaces of said beams and said transverse structural member are disposed in a common horizontal plane.
Claim 15
Dependent Claim
27 words
A load supporting structure according to claim 13 wherein said support surfaces of said beams and said transverse structural members are disposed below said load transfer surface.
Claim 16
Dependent Claim
32 words
A load supporting structure according to claim 14 wherein said fastening means includes a plurality of studs uniformly spaced about the periphery of said deck and projecting upwardly from said support surfaces.
Claim 17
Dependent Claim
38 words
A load supporting structure according to claim 14 wherein said load supporting surface and said load transfer surface of said deck are spaced apart a distance that is at least 1/14 of the lateral spacing between said beams.
Claim 18
Dependent Claim
33 words
A load supporting structure according to claim 16 wherein said non-metallic fibres are distributed within the concrete with greater than 5 parts by volume of fibre to 1000 parts by volume of concrete.
Claim 19
Dependent Claim
28 words
A load supporting structure according to claim 17 wherein said fibres have a diameter not more than 0.05 mm and a length of not more than 40 mm.
Claim 20
Dependent Claim
23 words
A load supporting structure according to claim 18 wherein said deck has a tensile strength not less than 20% of its compressive strength.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-08-22 | 1998-02-21 | 1998-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-08-22 | 2002-02-21 | 2002-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-08-22 | 2006-02-21 | 2006-08-23 | $7700.00 | Window Closed / Lapsed |