Suspension type monorail open box type track beam

Abstract

The invention relates to the technical field of bridge engineering, and provides a suspension type monorail open box type track beam which comprises two bottom plates, a first closed box type and a second closed box type which are respectively and vertically arranged on the two bottom plates, a third closed box type is arranged between the ends, away from the bottom plate, of the first closed boxtype and the second closed box type, and the first closed box type and the second closed box type are each provided with a part for being in contact with a guide wheel. And the first closed box type,the second closed box type and the third closed box type form a closed-loop structure. The track beam is composed of the three closed box types, the three closed box types form a closed-loop structure, stress flow forms a complete closed loop, compared with an open section, the torsional strength of the section of the structure is greatly improved and is about ten times or above that of the open section, deformation caused by torsion is remarkably reduced, and a guarantee is provided for improving the train running comfort.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a suspended monorail open box-shaped track beam. Background technique [0002] The traditional suspended monorail track beam adopts an open box section. The beam section is surrounded by a top plate, a web and a bottom plate. The bottom plate consists of two pieces, left and right, which are used as the running surface of the suspended monorail train. The train bogie passes through the gap between the bottom plate and the train. Body connection. Such as figure 1 shown. In the figure, a is the top plate, b is the web, and c is the bottom plate. In this traditional form, the torsional rigidity of the open section is relatively low. For bridges with curved sections, the track beams are made of curved beams. In small radius curves, under the action of vertical loads (such as live loads from trains), the track beams are subjected to a large torque. As a result, a large ...

AI Technical Summary

Problems solved by technology

In this traditional form, the torsional rigidity of the open section is relatively low. For bridges with curved sections, the track beams are made of curved beams. In small radius curves, under the action of vertical loads (such as live loads from trains), the track beams are subjected to a large torque. As a result, a large deformation occurs, which is equivalent to the vertical deformation or even larger, which has a great impact on the comfort and ride comfort of the train

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