Cable-stayed bridge saddle and manufacturing method thereof

Abstract

The invention discloses a novel cable-stayed bridge cable saddle. The novel cable-stayed bridge cable saddle is internally provided with a plurality of wire dividing pipes; a steel rope group consisting of a plurality of steel ropes penetrates each wire dividing pipe; and the outer surfaces of the two sides of the steel rope group are propped against the inner walls of the two sides of the bottom of each wire dividing pipe. A manufacturing method for the novel cable-stayed bridge cable saddle comprises the following steps: 1, forming a saddle body and penetrating the saddle body through the wire dividing pipes; 2, pouring C50 high-density concrete fully into an inner cavity of the saddle body; 2, performing preservative treatment on the steel ropes; and 4, penetrating the steel ropes through the wire dividing pipes and pressing on a cable tower. The section shapes of the wire dividing pipes are transformed, so that the wire dividing pipes and the steel ropes arranged in the wire dividing pipes can generate a self-locking force, sliding can be avoided without mounting antiskid devices at the two ends of the wire dividing pipes and epoxy resin does not need to be poured in the wire dividing pipes. The method is very convenient in use and replacement, greatly saves the bridge manufacturing cost and can be suitable for cable-stayed bridges with any structural sizes.

Description

technical field [0001] The invention belongs to the technical field of roads and bridges, and in particular relates to a cable-stayed bridge saddle, in particular to a cable-stayed bridge saddle with a novel split tube structure and a manufacturing method thereof. Background technique [0002] With the vigorous advancement of my country's infrastructure construction, there are a large number of super-large bridges in the development of highway construction. In this bridge design, most cable-stayed bridges are composed of basic components such as bridge towers and steel cables. see figure 1 , in the early cable-stayed bridges, the upper end of the steel cable 2 was anchored in the bridge pylon 1, the lower end was anchored in the cast-in-place prestressed beam slab, and the upper end was anchored in the upper part of the bridge pylon 1, and its force was divided into horizontal F2 and the vertical force component F1. The horizontal component force of the bridge tower 1 has ...

AI Technical Summary

Problems solved by technology

Although this design solves the defect of the cable-stayed bridge steel cable anchoring on the bridge tower to produce horizontal component force, its disadvantages are: this kind of cable saddle is very inconvenient to use, and the anti-slip reliability of the side steel cables is also limited. It can only be used on small cable-stayed bridges, such as the Yangtze River Bridge, and cannot be used on super-large bridges

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