Static structures (e.g. – buildings) – Means compensating earth-transmitted force
Patent
1997-03-12
2000-11-28
Canfield, Robert
Static structures (e.g., buildings)
Means compensating earth-transmitted force
52 922, 522236, 5222314, 52295, 527413, E04B 192, E04H 914
Patent
active
061518441
ABSTRACT:
A construction modification and associated method used in pre-stressed building structures is designed to enhance resistance to extreme high wind environments, such as hurricanes and tornadoes, and in earthquake prone regions is most useful for structures built of lightweight materials such as wood or aluminum but is also applicable to structures built of heavy materials such as brick, stone, concrete, reinforced concrete and steel. Modifications include increased spacing of the wall frame elements, namely wall studs or columns, symmetrical sheeting at both sides of the frame when wood is used to build wall panels or symmetrical building of walls inside the frame when heavy material as brick, concrete block, stone, cast concrete etc. are used to build panels, a new incorporated into structures is complement system of strings and balance beams and modification of the effective weight or gravity of the structure. The strings of the complement system are placed in channels running through the wood studs of wood wall panels (or columns of the frame system or massive walls if other heavy materials herein mentioned are used) and a balance beam is placed at the top of the walls of each story. A pre-stressing forces are supplied to the strings at the top of each story by a hydraulic devices or other mechanical means in direction coinciding with the direction of the structure's natural gravity. The balance beam distributes applied forces uniformly on the walls. The additional energy in the wall structure, called relative gravity, eliminates problems associated and caused by wind loads and seismic loads including intense vibration of walls, tension and uplift forces in structure, structure's instability and the other modifications eliminates the presence of anemic connectors and fasteners as the means in prior art for load transfer throughout the structure.
REFERENCES:
patent: 5384993 (1995-01-01), Phillips
patent: 5448861 (1995-09-01), Lawson
patent: 5491935 (1996-02-01), Coxum
patent: 5535561 (1996-07-01), Schuyler
patent: 5570549 (1996-11-01), Lung et al.
patent: 5765333 (1998-06-01), Cunningham
Canfield Robert
Lazar's Engineering
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