| 摘要 |
For tensioning a cable having multiple strands (A, B, C, D, etc.) by the successive tensioning of the various strands by means of an individual jack (4), the following procedure is adopted: a first cable strand (A), hereafter called a "reference strand", is tensioned, whilst at the same time making it possible subsequently to measure the tension of the strand at any moment, a second strand (B) is then pulled until its tension is equal to that of the reference strand, measured at the same moment, and thereafter this second strand thus tensioned is anchored, a third strand (C) is then pulled until its tension is equal to that of the reference strand, measured at the corresponding moment, and thereafter this third strand thus tensioned is anchored, and so on and so forth until the last strand (D) is anchored, after which the tension then applied to the reference strand (A) is noted and, after the latter has been relieved and the measuring means released, this reference strand is anchored by applying the tension thus noted to it. …<IMAGE>… |
