Steel strand external stay cable structure system for wind tower and manufacturing and installation method thereof

Abstract

The utility model relates to a steel strand external stay cable structure system for a wind tower. The steel strand external stay cable structure system comprises a steel strand stay cable, an isolation and anti-wear device, a constraining and shock absorption device and a basic conversion bracket assembly; the isolation and anti-wear device comprises an anti-wear sleeve pipe, isolation sleeves and a thermal shrinkage sleeve, the anti-wear sleeve pipe sleeves the stay cable, and the isolation sleeves are arranged at several points of an excircle steel strand and are fixed by the thermal shrinkage sleeve; the constraining and shock absorption device comprises two half clamping plates and a hinged damping rod; in an installation state, the basic conversion bracket assembly is pre-buried and poured in tower foundation concrete, and the upper end of the steel strand stay cable is locked at a platform base plate at the top of the tower by an upper anchor assembly, and the tail end of the cable body of the steel strand stay cable end penetrates to a support cylinder hole of the basic conversion bracket assembly and is anchored by a tension end anchor assembly; the isolation and anti-wear device is positioned at a tower top corner structure; and the constraining and shock absorption device is installed at a laying-off position of a tower barrel and the steel strand stay cable. The steel strand external stay cable structure system is conducive to the installation and construction of a tower top narrow space structure, seismic resistance is good, the quality of the stay cable construction is ensured, and the service life is prolonged.

Description

technical field [0001] The invention relates to a prestressed cable for a wind tower, in particular to a steel strand external cable structure system for a wind tower and a manufacturing and installing method thereof. Background technique [0002] In recent years, with the vigorous development of the wind power industry, related wind power supporting technologies have also been improved. The construction of wind towers for wind power generation has become a key technology for increasing power generation rates. At present, the prestressing technology used in ultra-high concrete wind towers has obtained attention and use. [0003] At present, the prestressed wind tower structure is divided into internal prestressed concrete towers and external prestressed concrete towers. The construction cost of wind power towers has become the focus of investment companies. How to effectively and quickly build towers to form efficient construction Quality has become the joint point of cost ...

AI Technical Summary

Problems solved by technology

[0003] At present, the prestressed wind tower structure is divided into internal prestressed concrete towers and external prestressed concrete towers. The construction cost of wind power towers has become the focus of investment companies. How to effectively and quickly build towers to form efficient construction Quality has become the joint point of cost control; among them, the advantages of external prestressed concrete towers have been favored abroad, mainly reflected in the aspects of convenient installation, low cost and convenient maintenance; but for multi-section spliced ​​super high As far as the concrete tower structure is concerned, there will be a structural inflection point at the top of the tower, and the prestressed cables installed in the tower have an installation oblique angle and may interfere with the tower wall. Therefore, how to construct in a small space and ensure the tension The prestress transmission and anti-seismic aspects of the cable and tower foundation are technical problems that must be solved by those skilled in the art

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