Static structures (e.g. – buildings) – Tensioned or flexed sheet facing
Patent
1974-07-09
1978-01-03
Braun, Leslie
Static structures (e.g., buildings)
Tensioned or flexed sheet facing
52252, 52259, 52263, E04C 326
Patent
active
040658970
ABSTRACT:
A skeleton monolithic structure and method of assembly thereof employing the maxim of providing in that each beam of the structure in the longitudinal and transverse directions thereof, is divided into two channel-forming parts, thus providing ample space for the free threading of steel cables in order to effect the prestressing. The straight-line or linear cables run through the thus formed longitudinally and transversely extending channels, while in the locations for columns they are pulled through suitable holes previously prepared for this purpose in the columns, and which concurrently define the elevational positions of the cables on supports. In the first prestressing stage, once the mortar has hardened on the joints, the linear cables are tensioned so as to avoid the occurrence of friction. The next stage of prestressing is effected, while the cables are still free and accessible in each channel, by means of a jack which vertically presses the cables in the middle or along any other location in each span, until the cables are lowered below the hole in the column so as to enable a steel tube which is adapted to fix the position of the lowered cables to be put into place.
REFERENCES:
patent: 1053646 (1913-02-01), Roberts
patent: 2618146 (1952-11-01), Ciarlini
patent: 3261135 (1966-07-01), Knabe
patent: 3340664 (1967-09-01), Reiland
patent: 3495371 (1970-02-01), Mitchell
patent: 3553923 (1971-01-01), Dompas
patent: 3561179 (1971-02-01), Young
patent: 3722159 (1973-03-01), Kessler
patent: 3903667 (1975-09-01), Zetlin
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