Deployable prestress steel truss bridge based on deflection pre-warning system

An early warning system and prestressed steel technology, applied in the field of truss bridges, can solve the problems of limited use conditions, inconvenient operation, complicated operation, etc., and achieve the effects of reducing steel consumption, convenient opening and closing, and simple principle

Active Publication Date: 2013-12-11
NANJING UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide an expandable prestressed steel truss bridge based on a deflection early warning system, aiming to solve the problems of limited use conditions, complicated operation and inconvenient operation in the existing prestressed truss prestressing method

Method used

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  • Deployable prestress steel truss bridge based on deflection pre-warning system
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Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0026] The application principle of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0027] Such as figure 1 As shown, the expandable prestressed steel truss bridge based on the deflection early warning system in the embodiment of the present invention is mainly composed of a steel truss deck 1, a steel truss 2, a steel diaphragm truss 3 and an early warning system; the steel truss 2 is arranged on the steel truss On both sides of the bridge deck 1, the steel transverse truss 3 is arranged between the steel trusses 2, and the early warning syste...

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Abstract

The invention discloses a deployable prestress steel truss bridge based on a deflection pre-warning system. The deployable prestress steel truss bridge comprises a steel truss bridge deck, steel trusses, a steel transverse partition truss and a pre-warning system, wherein the steel trusses are arranged on the two sides of the steel truss bridge deck; the steel transverse partition truss is arranged between the steel trusses; the pre-warning system is connected with the steel trusses. The deployable prestress steel truss bridge is provided with the deployable prestress steel trusses for bearing bridge deck load; by exertion of prestress on steel cables, the whole rigidity of the structure is enhanced and the use amount of steel is reduced; the main truss of the structure is deployable, convenient to open and close, and easy to detach and install, so that the construction speed is high. The deployable prestress steel truss bridge combines deployability and prestress; the use safety is enhanced by arranging the pre-warning system; clamping force is increased by virtue of the elastic potential energy of a spring, the principle is simple, and the steel truss bridge is convenient and feasible. In addition, the steel truss bridge is simple in structure, rapid to erect and convenient to carry, and can serve as a temporary bridge for urban road reconstruction, emergency rescue and disaster relief, and military use.

Description

technical field [0001] The invention belongs to the technical field of truss bridges, in particular to a deployable prestressed steel truss bridge based on a deflection early warning system. Background technique [0002] At present, the domestic research and development of deployable bridges are still in their infancy. The deployable bridges appeared in the Second World War, so the old-style deployable bridges are mainly military deployable bridges, such as the TLB impact bridge, Fair Lei axial folding bridge, etc. The deployment mechanism of this type of bridge is complicated, the form is cumbersome, and special transportation equipment is required. After entering the 21st century, both at home and abroad have begun to engage in the development of new types of expandable bridges. The deployment mechanism of this type of expandable bridge is simple. Easy to operate, light in weight and easy to transport. [0003] Existing expandable bridges and rapid-construction prefabrica...

Claims

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Application Information

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IPC IPC(8): E01D6/00
Inventor 董军夏志远张棋李靖
Owner NANJING UNIV OF TECH
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