Static structures (e.g. – buildings) – With component having discrete prestressing means – Beam – girder – or truss construction
Patent
1994-01-03
1996-07-09
Friedman, Carl D.
Static structures (e.g., buildings)
With component having discrete prestressing means
Beam, girder, or truss construction
52 211, 522231, 527381, E04C 508
Patent
active
055333095
ABSTRACT:
A beam-like structural component has a tubular shape with both ends closed. The internal cavity of the tubular element is filled with core material which can undergo transformation leading to increasing its specific volume and thus to exerting pressure on the end closures of the tubular element and inducing its stretching along the axis. This results in increasing bending stiffness of the beam-like component. The transformation can be thermal expansion, phase transformation (melting or solidification); time-dependency effects after solidification; change in crystallic structure, absorption of gases or fluids, etc. In case of using liquid core materials, the tubular element is reinforced in radial directions. A clearance can be left between the core material and the tubular element. This clearance may be filled with a lubricant or elastic spacers.
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Friedman Carl D.
Wilkens Kevin D.
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