Claims
- 1. A method for fabrication of a bridge from a composite structure, by combining profile plate and concrete, the method comprising the steps of:
- (a) transporting and placing the profile plate at a bridge building site, the profile plate including means for securing the concrete on the profile plate;
- (b) pre-assembling the profile plate into a configuration corresponding to a desired bridge structure, the pre-assembled profile plate being comprised of a light-weight, easily handled structure having a load bearing strength which is increased at the bridge building site;
- (c) spraying a layer of concrete onto the securing means of said profile plate to increase the load bearing strength of the pre-assembled profile plate;
- (d) allowing the layer of concrete to partially set;
- (e) spraying another layer of concrete on said concrete layer to further increase the load bearing strength of the pre-assembled profile plate ; and
- repeating steps (c) through (e), to apply a plurality of layers of concrete on said profile plate until the desired bridge structure is fabricated.
- 2. A method as set forth in claim 1, wherein said profile plate is made of steel, and said steps (c) through (e) comprise spraying a first layer of concrete onto the steel profile plate, allowing the first layer to set, and thereafter spraying at least a second layer of concrete onto the first layer of the set concrete.
- 3. A method as set forth in claim 1, further comprising the step of placing reinforcing iron or steel between the layers of sprayed concrete.
- 4. A method as set forth in claim 3, wherein said steps of spraying comprise spraying concrete of different quality into selected ones of the plurality of layers of concrete.
- 5. A method as set forth in claim 1, wherein said profile plate has opposed sides and said steps of spraying comprise spraying concrete onto both sides of said profile plate.
- 6. A method as set forth in claim 1, wherein the concrete comprises concrete mixed with fibers.
- 7. A method as set forth in claim 1, wherein the concrete being sprayed comprises concrete mixed with porous granules.
- 8. A method as set forth in claim 1, wherein said securing means comprises a plurality of ragged-edged perforations on said profile plate, and the step of spraying concrete onto said securing means comprises spraying said concrete layer onto the plurality of ragged-edged perforations.
- 9. A method as set forth in claim 1, wherein said securing means comprises a mesh fitted on said profile plate, and the step of spraying concrete onto said securing means comprises spraying said concrete layer on said mesh.
- 10. A method as set forth in claim 9, wherein said securing means comprises a plurality of valley regions on said profile plate and said mesh is secured to said plurality of valley regions of said profile plate, and the step of spraying concrete onto said securing means spraying said concrete layer on said mesh.
- 11. A method as set forth in claim 9, wherein said securing means includes a plurality of clips having ends, the ends of said clips being pressed into said profile plate to secure the mesh on said profile plate.
- 12. A method as set forth in claim 9, wherein said mesh has ends and said securing means comprises a plurality of recesses on said profile plate and the ends of said mesh are secured in the recesses of said profile plate.
- 13. A method as set forth in claim 12, wherein said mesh ends are secured in the recesses of said profile plate by a spring.
- 14. A method for fabrication of a bridge from a composite structure, by combining a profile plate and concrete, the method comprising the steps of:
- (a) transporting and placing the profile plate at a bridge building site, the profile plate including a mesh fitted on said profile plate;
- (b) pressing said profile plate around a portion of said mesh to secure said mesh on said profile plate;
- (c) pre-assembling the profile plate into a configuration corresponding to a desired bridge structure, the pre-assembled profile plate being comprised of a light-weight, easily handled structure having a load bearing strength which is increased at the bridge building site;
- (d) spraying a layer of concrete onto the mesh of said profile plate to increase the load bearing strength of the pre-assembled profile plate; and
- (e) allowing the layer of concrete to partially set;
- (f) spraying another layer of concrete on said concrete layer to further increase the load bearing strength of the pre-assembled profile plate; and
- repeating steps (d) through (f), to apply a plurality of layers of concrete on said profile plate until the desired bridge structure is fabricated.
- 15. A method for fabrication of a bridge from a composite structure, by combining a profile plate and concrete, the method comprising the steps of:
- (a) transporting and placing the profile plate at a bridge building site, the profile plate including a mesh fitted on said profile plate, wherein said profile plate includes a plurality of recesses;
- (b) pressing sides of said recesses together to fold said mesh in the recesses of said profile plate to secure said mesh on said profile plate;
- (c) pre-assembling the profile plate into a configuration corresponding to a desired bridge structure, the pre-assembled profile plate being comprised of a light-weight, easily handled structure having a load bearing strength which is increased at the bridge building site;
- (d) spraying a layer of concrete onto the mesh of said profile plate to increase the load bearing strength of the pre-assembled profile plate;
- (e) allowing the layer of concrete to partially set;
- (f) spraying another layer of concrete on said concrete layer to further increase the load bearing strength of the pre-assembled profile plate; and
- repeating steps (d) through (f), to apply a plurality of layers of concrete on said profile plate until the desired bridge structure is fabricated.
- 16. A method as set forth in claim 15, wherein said profile plate is folded to produce a plurality of lateral extensions, each having a varying width.
- 17. A method for fabrication of a bridge from a composite structure, by combining a plurality of profile plates and concrete, the method comprising the steps of:
- (a) transporting and placing the plurality of profile plates at a bridge building site, each of the profile plates including means for securing the concrete on the profile plates;
- (b) assembling the plurality of profile plates into a configuration corresponding to a desired bridge structure, the assembled profile plates being comprised of a light-weight, easily handled structure having a load bearing strength which is increased at the bridge building site;
- (c) spraying a layer of concrete onto the securing means of said assembled profile plates to increase the load bearing strength of the assembled profile plates;
- (d) allowing the layer of concrete to partially set;
- (e) spraying another layer of concrete on said concrete layer to further increase the load bearing strength of the assembled profile plates; and
- repeating steps (c) through (e), to apply a plurality of layers of concrete on said assembled profile plates until the desired bridge structure is fabricated.
Priority Claims (2)
Number |
Date |
Country |
Kind |
894535 |
Sep 1989 |
FIX |
|
894536 |
Sep 1989 |
FIX |
|
Parent Case Info
This is a continuation of application Ser. No. 07/842,411 filed on Mar. 26, 1992, now abandoned.
US Referenced Citations (34)
Foreign Referenced Citations (2)
Number |
Date |
Country |
2176818A |
Jun 1985 |
GBX |
8302475 |
Jul 1983 |
WOX |
Continuations (1)
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Number |
Date |
Country |
Parent |
842411 |
Mar 1992 |
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