Stock material or miscellaneous articles – Hollow or container type article – Glass – ceramic – or sintered – fused – fired – or calcined metal...
Patent
1997-06-05
2000-01-25
Dye, Rena L.
Stock material or miscellaneous articles
Hollow or container type article
Glass, ceramic, or sintered, fused, fired, or calcined metal...
428 346, 428 347, 428 3691, 428117, 428118, 428174, 428178, 428188, 52414, 52576, 527231, 527374, 5274214, 156 78, 156196, 156290, 156291, 156269, B32B 312, B32B 518, E04C 334
Patent
active
060175974
DESCRIPTION:
BRIEF SUMMARY
DESCRIPTION OF THE INVENTION
1. Field of the Invention
This invention is related to the general structural material involved in architecture (for example: pillars, walls, shielding, foundations or floors for tall buildings or pillars, wall shielding floors, for regular buildings and houses), the civil engineering field (for example; road facilities such as noise resistant walls and crash barriers, road paving materials, pipes, segment materials for tunnels, segment materials for underwater tunnels, tube structural materials, main beams of bridges, bridge floors, girders, cross beams of bridges, girder walls, piers, bridge substructures, towers, dikes and dams, guideways, railroads, ocean structures such as breakwaters and wharf protection for harbor facilities, floating piers/oil excavation or production platforms, airport structures such as runways) and the machine structure field (frame structures for carrying system, carrying pallets, frame structure for robots etc), the automobile (the body, frame, doors, chassis, roof and floor, side beams, bumpers etc), the ship (main frame of the ship, body, deck, partition wall, wall etc), freight car (body, frame, floor, wall etc), aircraft (wing, main frame, body, floor etc), spacecraft (body, frame, floor, wall etc), the space station (the main body, floor, wall etc), the submarine (the body, frame etc), and is related to the structural material which requires extreme dynamic strength.
2. Background of the Invention
In the fields of civil engineering, architecture, automobiles, ships and aircrafts, which require extreme dynamic strength, such as steel and concrete or metal such as aluminum, duralumin which are generally used as structural materials. These materials are used alone or are occasionally used in combinations each other. Also, carbon fiber is utilized.
For example, in the civil engineering and architecture fields, as a typical complex material, reinforced concrete is generally used. This reinforced concrete is the structural material which utilizes each character of steel and concrete. The concrete retains a low tension strength, and it's ratio is about 1 to 10, expansion to compression. In order to make up for this, steel materials such as reinforcing bar, which have a much higher strength of tension, is utilized, and it is distributed to the point which of action of tension, so that reinforced concrete comes to possess a high tolerance of dynamic action.
However, stability is not distributed effectively, a larger surface contact area of steel and concrete is needed for a more efficient and strong structure, from the spacing point of view. For example, concerning pre-stressed concrete, utilizing a large amount of strength against the pressing force of concrete and a great tension strength of the reinforcing bar, the concrete is pre-stressed by the bar to instill more compressive force from the beginning to reduce the tension force on the concrete.
The reason for explaining why the concrete and steel complex material is used in the civil engineering and architecture field is that the character of these materials supplement each other. These materials are relatively economical, widely used, easy to manufacture and process, have significantly strong loading tolerances, easy to adhere to each other, have near equal coefficients of thermal expansion, etc. Therefore a reciprocal dynamic action can be expected.
Concerning the aforementioned reinforced concrete complex material, there exists a concrete filled steel pipe structure. The concrete filled steel pipe structure is a steel pipe which is filled with concrete. This is mainly used for compressive materials. Recently, as it has been shown in the Japanese Published Unexamined Patent Application 20457/92, the steel net is used for making the concrete filled steel pipe structure to make complex materials, and the Japanese Published Unexamined Patent Application 28058192, 28059/92, producing a pre-stressed material by heating the steel pipe. Also, the construction method of the concrete filled steel pipe s
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Minakami Hiroyuki
Minakami Motoyuki
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