Preforming traction mechanism of unit strand imitating main cable linearity of suspension bridge

Abstract

The invention discloses a preforming traction mechanism of a unit strand imitating main cable linearity of a suspension bridge in the technical field of bridge manufacturing. A side railroad shoe, a middle railroad shoe and a sleeve are fixedly connected with a pedestal; one end of a lifting screw is connected with the sleeve, while the other end is connected with a track supporting board; the track supporting board is arranged on the bottom of a track, the track consists of a plurality of sections, the component sections are hinged, and hinge positions are connected with the middle railroad shoe; two sides of the track are connected with the side railroad shoe respectively; a plurality of fixtures are evenly distributed on a chain, and are used for clamping a steel wire strand to be manufactured; and the chain bypasses chain wheels at two ends, and the chain wheels are arranged on the pedestal. The preforming traction mechanism realizes strand traction in the process of manufacturing the unit strand imitating the main cable linearity of the suspension bridge and can make the steel wire strand bent in the traction process; and the bent degree of the steel wire strand can be adjusted at the same time.

Description

technical field [0001] The invention relates to a device in the technical field of bridge manufacturing, in particular to a preformed traction mechanism imitating the strands of the linear unit of the main cable of a suspension bridge. Background technique [0002] The unit strands are the composition of the main cables in bridges and building structures such as suspension bridges and self-anchored suspension bridges, and are the load-bearing parts of the main cables in bridges and building structures such as suspension bridges and self-anchored suspension bridges. The steel wire lengths of the current unit strands forming a strand are all the same, and reinforced polyester bands or thin steel wires are wrapped outside the strands of the steel strands at regular distances on the strands of a certain distance. With the development of bridge technology, some bridges and building structures such as suspension bridges and self-anchored suspension bridges require that the main ca...

AI Technical Summary

Problems solved by technology

However, due to the complexity of the main cable line after the traditional unit strands are loaded, the stress on each steel wire is not balanced, so that the stress on individual steel wires is greater than that of other steel wires, and some may exceed the tensile strength of the steel wires, resulting in The existence of potential safety hazards

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