Carbon fiber inhaul cable capable of being used for large building structure

Abstract

The invention relates to a carbon fiber inhaul cable capable of being used for a large building structure. The carbon fiber inhaul cable comprises a cable body and a plastic pipe sheath, wherein the cable body is formed by stacking a plurality of carbon fiber plates with the same width in parallel and is provided with a rectangular section, and the cable body is sleeved with the plastic pipe sheath. The carbon fiber inhaul cable is a cable body which is small in section, high in strength, and conductive to installation and anchoring, is excellent in tensile property, simple in production process, conductive to installation and construction, long in service life and higher in comprehensive cost performance, can be used for the large building structure, and has the capability of replacing a steel cable under the policy background of carbon neutralization.

Description

technical field [0001] The present disclosure relates to a reinforcement for fixing a building, in particular to a carbon fiber cable for a large building structure. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may constitute prior art. During the process of realizing the present invention, the inventors have found at least the following problems in the prior art. [0003] With the development of science and technology, large-scale projects are getting bigger and bigger. In my country, the scale of infrastructure construction is leading the world. There is a huge demand for cables used in large-scale projects, and the cost of structural cables is high, and its market size is difficult to estimate. However, more than 85% of large-scale engineering structures are self-weight, and huge weight means high load, high seismic response and high cost of the structure. The stay cables of lar...

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Problems solved by technology

[0012] Since the patent applicant and the above-mentioned patent applicant are related units, the inventor found in the actual use and experimental testing of the patented product that the carbon fiber plate in the middle of the circular cross-section CFRP cable tends to slip out during the fastening of the anchor. , leading to the failure to achieve anchoring; moreover, the upper and lower pressure plates are easily bent and deformed seriously when the bolts are fastened, causing the fastening bolts to also bend and deform, which changes the shape of the anchor head and the bolt, which is very unfavorable to the overall force and affects the anchor head. service life, which in turn affects project quality and project service life; the bearing capacity / working performance of the cable is not ideal, and it is difficult to apply it to large-scale building structures

Since carbon fiber plates of different widths are used for lamination in order to form a circular section, the specifications of the sheets are more complicated, which brings greater difficulty to production, transportation and assembly

[0013] To sum up, in terms of tensile strength, the main reason why the cables of the above similar products cannot be applied to large-scale building structures is that the cable body used makes the anchoring design extremely difficult, cannot achieve a large tensile force, and cannot meet the needs of large-scale projects ;In terms of service life, similar products have shortcomings in terms of strength, anti-corrosion, and anti-ultraviolet rays. For example, the steel cables currently used in large-scale building structures have a theoretical service life of 20 years, which is greatly reduced in practical applications, and some are even less than 5 years. , long-term regular maintenance is required, and the maintenance cost is high; in the production process and installation process, there are also problems such as difficult assembly, transportation, and construction, and the mechanical loss of materials caused by process defects; in terms of maintenance, they are all troublesome

[0014] Therefore, the fiber cables that have been used in engineering projects in the market now have a relatively narrow application range, low tonnage, high cost, and difficult construction. It is in the field of large-scale building structures, and there is no practical application case yet

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