Multi-axis prestressed double-tee beam and method of constructio

Details Multi-axis prestressed double-tee beam and method of constructio Multi-axis prestressed double-tee beam and method of constructio

1997-09-06

1999-02-09

Friedman, Carl D.

Static structures (e.g., buildings)

With component having discrete prestressing means

Beam, girder, or truss construction

522238, 522239, 5222314, 52231, E04C 310

Patent

active

058679545

ABSTRACT:
A multi-axis prestressed double-tee beam and method for construction the same is provided, the prestressed double-tee beam includes a cantilever type and a simple-support type, the cantilever type is composed of a pair of laterally combined steel skeletons and each includes a flat elongate erect web having straight upper edge and a bowed lower edge, a pair of upward sloped upper flanges extended along the length of the web, an elongate groove of U-shaped section centrally extended between the upper flanges, a single lower flange extended along the length of the lower edge of the web, a bottom engageable with the lower end of the combined steel skeletons, a plurality of wedges inserted into the groove and a plurality of triangular reinforcement of different size spacedly secured to the lateral sides of the webs abutting the upper flanges, the simple-support type is mostly similar to the cantilever type except a slightly upward arcuate rectangular cross-section and equal sized triangular reinforcements, besides it forms no elongate groove. Nevertheless, both of them provide multi-axis prestresses.

REFERENCES:
patent: 3733669 (1973-05-01), Coho
patent: 4006523 (1977-02-01), Mauquoy
patent: 4047341 (1977-09-01), Bernardi

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