Steel strand stayed cable and manufacturing method thereof

Abstract

The invention relates to a steel strand stayed cable and a manufacturing method thereof. The problem that an existing stayed cable is assembly by extrusion and needs special extrusion equipment, and each steel strand needs to be equipped with an extrusion die of the corresponding specification, so that operation is troublesome, and the cost is high are solved. An anchoring end and a stretching end each comprises a taper sleeve arranged at the center steel wire end of the corresponding steel strand in a sleeving mode, an anchoring sleeve arranged at the end of a cable body in a sleeving mode and a sealing tube. The anchoring sleeves are filled with epoxy cold casting material, and the sealing tubes are filled with anti-corrosive polyurethane. The ends of the steel strands are expanded by the taper sleeves, during stretching, the steel strands are made to for a self-extrusion clamping structure through the taper sleeves, the steel strands do no needs to be subjected to extrusion sleeve assembly additionally, no special extrusion equipment is needed, and operation is easier. The anchoring sleeves are of a whole inner hole structure, the phenomenon that a plurality of long holes are formed is avoided, and machining is convenient.

Description

technical field [0001] The invention relates to the field of engineering structure cables, in particular to a steel strand cable and a manufacturing method thereof. Background technique [0002] At present, bridges, stadiums and other buildings in my country are mostly supported by cables. The cables mainly include cold-cast anchor cables, hot-cast anchor cables and clip-type anchor cables. However, in large-scale building structures, steel structure cable-stayed bridges and arch bridges, due to structural constraints, it is required to use a cable guide with a smaller inner diameter. Traditional cold-cast anchor wire cables, hot-cast anchor wire cables and steel strand group anchor cables are difficult to meet this requirement due to the large size of the anchor head, and the cost is relatively high. [0003] The Chinese Patent Office published a document CN200999418Y on January 2, 2008, titled Steel Strand Whole Bundle Extruded Anchor Cable Cable, which consists of steel ...

AI Technical Summary

Problems solved by technology

[0004] The invention solves the defects that the existing draglines are assembled by extrusion, special extrusion equipment is required, and each steel strand needs to be equipped with extrusion dies of corresponding specifications, the operation is troublesome and the cost is high, and it provides a steel Stranded cable and its production method, the steel wire end of each steel strand is sleeved with a tapered sleeve to form a self-extrusion clamping structure, no need to assemble the steel strand with an extrusion sleeve, and the operation is simple

[0005] The present invention also solves the defect that the existing anchorage sleeve is relatively long and needs to open long holes with the same number of steel strands inside the anchorage sleeve, and the processing is relatively troublesome. It provides a steel strand cable and a manufacturing method, There is no need to process a long hole inside the anchorage sleeve, and the tapered sleeve is placed on the end of the steel wire in the center of each steel strand to form a self-extrusion clamping structure, which is convenient for processing

[0006] The present invention also solves the problem that the end of the existing cable is extruded by the extruded sleeve and penetrates into the inner hole of the anchor sleeve. In the case of steel strand slippage, a steel strand cable and its production method are provided. The tapered sleeve on the center steel wire sleeve of each steel strand forms self-extrusion, and epoxy chilled casting material is filled in the anchor sleeve. Balance the extrusion force of each strand to prevent the strand from slipping

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