Apparatus for and method of assembling a tension tie member

Details Apparatus for and method of assembling a tension tie member Apparatus for and method of assembling a tension tie member

1985-04-30

1987-03-10

Leppink, James A.

Bridges

Suspension

Towers and anchors

14 23, 14 1, 52223R, E01D 1100

Patent

active

046481460

ABSTRACT:
In the assembly of a tension tie member between spaced anchors when the tie member is made up of a number of individual tension elements, such as steel wires, steel strands or the like, enclosed within a tubular sheathing, the tension elements are inserted individually and successively between the anchors and it is necessary to insert the annular wedges which anchor each element before the tension elements are released from a threading device. To prevent the annular wedges from prematurely entering into the boreholes in the anchor plate, an auxiliary plate is positioned spaced from the anchor plate. The auxiliary plate has at least one through borehole axially alignable with the boreholes in the anchor plate. A tubular section is secured to the auxiliary plate and forms an extension of the borehole therein. An annular wedge to be inserted into one of the boreholes and the anchor plate can be held on the tubular section by resiliently expanding the wedge about the outer surface of the tubular section. An individual tension element can be inserted through the auxiliary plate and then through the anchor plate and the tubular sheathing and finally through the other anchor plate without any interference from the annular wedge. After the tension element is completely inserted, the wedge can be slipped off the tubular section and inserted into the borehole in the anchor plate by means of a simple handle.

REFERENCES:
patent: 3597830 (1971-08-01), Yegge
patent: 3647184 (1972-03-01), Vanderhurst et al.
patent: 4473915 (1984-10-01), Finsterwalder

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