Ceramic fiber-coated suspension bridge main cable

Abstract

The invention provides a ceramic fiber-coated suspension bridge main cable, which can effectively improve the temperature field distribution condition of the suspension bridge main cable and reduce the main cable damage caused by unbalanced stress distribution between cable strands in the main cable, thereby prolonging the service life of the main cable and the suspension bridge. According to thescheme, the ceramic fiber-coated suspension bridge main cable comprises a cable strand sheath, cable strands, the ceramic fibers and a ceramic fiber maintenance sleeve. The cable strand sheath wraps the outer layer of the cable strand, the ceramic fiber wraps the cable strand sheath, and the ceramic fiber maintenance sleeve wraps the outer layer of the ceramic fiber. The cable is characterized inthat the main cable sheath is used for fixing and protecting the plurality of cable strands, and the aluminum layer wraps the sheath. The ceramic fibers have excellent heat insulation performance, andthe cable strand sheath is wrapped by the ceramic fibers, so that the influence of external factors such as illumination on the temperature of the cable strand in the main cable can be effectively isolated. Therefore, the temperature difference between the internal cable strands is reduced.

Description

technical field [0001] The invention relates to the field of bridges, in particular to a main cable of an outsourcing ceramic fiber type suspension bridge. Background technique [0002] In recent years, my country's bridge design and construction technology has entered the world's advanced ranks. Suspension bridge, because of its large spanning capacity, is the focus of bridge development. At present, the suspension bridge project is also facing some problems. Among them, the main cable of the suspension bridge is the "safety lifeline" of the suspension bridge. The two main cables must bear the full load of the bridge. They are the main load-bearing components of the suspension bridge and cannot be replaced during the entire service life of the suspension bridge. . Therefore, the service life of the suspension bridge largely depends on the integrity of the entire main cable. [0003] However, under the action of solar radiation, etc., the temperature field distribution of...

AI Technical Summary

Problems solved by technology

As a result, the stress distribution between the strands inside the main cable of the suspension bridge is seriously unbalanced, which will seriously damage the construction of the main cable in the long run and seriously limit the service life of the main cable

[0004] For large bridges in operation, this will seriously affect their service level, cause great economic losses, and seriously may have a bad impact on society

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