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Rapidly expandable arch bridge based on shear-type hinge units

A technology of scissor hinges and arch bridges, which is applied in the direction of arch bridges, portable bridges, bridges, etc., which can solve the problems of foldable bridge decks and expandable arch bridges that have not yet appeared, and achieve excellent force transmission, continuous movement process, and easy transportation or storage. Effect

Active Publication Date: 2017-09-29
SOUTHEAST UNIV
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  • Claims
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AI Technical Summary

Problems solved by technology

However, at the present stage, the decks of bridges designed based on scissor hinge units are mostly in the form of planar girder bridges, and there are also a few simple under-supported arch bridges or truss bridges, but there has not yet been a comprehensive arrangement of cable and folding bridges. Deployable arch bridge form of panels

Method used

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  • Rapidly expandable arch bridge based on shear-type hinge units
  • Rapidly expandable arch bridge based on shear-type hinge units
  • Rapidly expandable arch bridge based on shear-type hinge units

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Embodiment Construction

[0028] Below with reference to accompanying drawing of description, the specific embodiment of the present invention is described further:

[0029] figure 1 2 and 2 are respectively a schematic diagram of a rapidly deployable arch bridge structure based on scissor hinge units and a detailed schematic diagram of the main components of the present invention.

[0030]The rapidly deployable arch bridge structure based on scissor hinge units of the present invention comprises a main body arch structure and an inverted V-shaped folding bridge deck arranged on the upper side of the main body arch structure; The arch unit, wherein M is not less than 2; the deployable arch unit includes N groups of scissor hinge units connected along the span direction of the bridge, wherein N is not less than 4. Among them, the upper end of the scissor hinge unit is connected to the upper chord node A in turn, and the lower end is connected to the lower chord node C in turn, and the two connecting ro...

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Abstract

The invention discloses a rapidly expandable arch bridge based on shear-type hinge units. The rapidly expandable arch bridge comprises a body arch structure and an inverted V-shaped folding bridge deck arranged on the upper side of the body arch structure, the body arch structure comprises M parallelly expandable arch units, M is not less than 2, the expandable arch units comprise N groups of shear-type hinge units and drawing ropes, the shear-type hinge units are sequentially connected along span direction of a bridge, and the head shear-type hinge unit and the tail shear-type hinge unit are connected through the drawing ropes. According to the rapidly expandable arch bridge, the bridge deck is bent, a body arch is pressured, and lower drawing ropes are drawn, so that a stable self-balance system is formed. The rapidly expandable arch bridge is provided with a rapidly expandable structure system of a single degree of freedom, reasonable in construction and transmission force, attractive in shape, conveniently and rapidly folded and unfolded or transferred and particularly applicable to temporary and semi-permanent or functional bridges and can be reused and made of metal materials such as aluminum alloys and steel strands and the like, and a driving mode is simple.

Description

technical field [0001] The invention belongs to the field of civil engineering, and relates to a mechanism and a deployable structure in terms of transportation, in particular to a rapidly deployable arch bridge based on a scissor hinge unit. Background technique [0002] The deployable structure can be quickly unfolded from a compact folded state, which has attracted widespread attention from designers and engineers. Open roofs, rapidly deployable bridges and many other fields have been applied in engineering. For example, in recent years, earthquake disasters have occurred frequently in western China. The earthquake directly caused bridge breakage and road damage, which had a great impact on the rescue work in the disaster area. Rapidly deployable bridges can quickly restore blocked traffic in disaster-stricken areas, opening a lifeline to rescue. Therefore, it is of great significance to develop new efficient, reliable and economical rapidly deployable bridges. [0003...

Claims

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Application Information

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IPC IPC(8): E01D4/00E01D15/12
CPCE01D4/00E01D15/124
Inventor 陈耀张宸浩练强王月峰冯健唐昆
Owner SOUTHEAST UNIV
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