ULTRA-LONG STEEL STRAND THREADING CONSTRUCTION METHOD FOR CONTINUOUS BEAM

摘要

An ultra-long steel strand (6) threading construction method for a continuous beam, comprising the steps of: threading a glass fiber (3) through a continuous beam (1) by means of a glass fiber threading machine; after the glass fiber (3) passes through the continuous beam, connecting the glass fiber (3) and a first steel wire rope (4), manually pulling same after connection, and using the first steel wire rope (4) as a lead; connecting the first steel wire rope (4) and a second steel wire rope (5) in a snap-fit manner, checking a joint, arranging a winch (9) at a small mileage side, using the winch (9) to perform construction, and pulling the second steel wire rope (5) by means of the first steel wire rope (4); and connecting the second steel wire rope (5) and a plurality of steel strands (6) in a snap-fit manner, dragging the plurality of steel strands (6) from the interior of a corrugated pipe by means of the winch (9), and fixing the plurality of steel strands (6) by means of an anchor. The present invention solves the problem in the prior art that during construction of a large-span bridge, it is very difficult to perform steel strand threading construction, the construction equipment is simple and the material is conventional and easily acquired; the construction method is simple and easy to implement, and completes tasks that cannot be completed by the largest threading machine; and the construction speed is high, and the whole threading of steel strands can be completed at one time.