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Quick-assembled string truss pedestrian steel bridge

A string truss, prefabricated technology, used in bridges, bridge parts, bridge construction, etc., can solve the problems of slow assembly speed, low safety factor, large amount of steel, etc., to achieve easy assembly and construction, reasonable structure, lightening The effect of self-weight

Active Publication Date: 2015-08-19
NANJING TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the pedestrian steel bridge adopts the scaffolding support system, it has the disadvantages of slow assembly speed, large steel consumption, and low safety factor.

Method used

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  • Quick-assembled string truss pedestrian steel bridge
  • Quick-assembled string truss pedestrian steel bridge
  • Quick-assembled string truss pedestrian steel bridge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The present invention will be described in detail below in conjunction with specific embodiments.

[0023] figure 1 A quick-assemble string truss pedestrian steel bridge proposed by the present invention includes a bridge deck, piers on both sides, and two or more main girders arranged side by side along the cross-sectional direction under the bridge deck. It is the main girder for string tension, including fabricated trusses, vertical braces 6 and steel cables 7. The fabricated trusses consist of standard triangular truss units 2, end triangular truss units 1, end chords 3, standard chords 4, adjustable The chords 5 are connected by steel pins. Standard triangular truss unit 2, end triangular truss unit 1, end chord 3, standard chord 4, and adjustable chord 5 are connected by steel pins to form the upper truss of the chord main girder; The vertical strut 6 is anchored to the other end of the truss to form a string structure, and the line shape of the steel cable 7 is...

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Abstract

The invention discloses a rapidly assembled steel footbridge in truss string structure. The rapidly assembled steel footbridge in truss string structure comprises a deck, piers on two sides and two or more girders disposed below the deck. Each girder below the deck is a truss string girder and comprises an assembled truss, vertical braces (6) and steel cables (7). The assembled truss is formed by connecting a standard triangular truss unit (2), end triangular truss units (1), end chords (3), standard chords (4) and adjustable chords (5) through steel pins. Compared with the traditional steel footbridge, the rapidly assembled steel footbridge in truss string structure further has the advantage that the girders can be assembled and disassembled rapidly. After the assembled steel footbridge is provided with the chords, the overall structural rigidity is improved and structural stress performance is improved. The structural strength and deformation can be adjusted through the cables, self-weight of the upper truss is also reduced, and the rapidly assembled steel footbridge in truss string structure is convenient to assemble and construct.

Description

technical field [0001] The invention belongs to the field of bridge engineering, and in particular relates to a quick-assembled string tension truss pedestrian steel bridge. Background technique [0002] The prefabricated steel bridge is a standard bridge that meets the requirements of strength and stability, has a short service life, is easy to disassemble and replace, and can be built quickly. According to different application fields, it is divided into prefabricated highway steel bridge and prefabricated railway steel bridge. Prefabricated highway steel bridge mainly includes "321" prefabricated highway steel bridge and type 200 prefabricated highway steel bridge; prefabricated railway steel bridge mainly includes Type 64 prefabricated railway steel bridge and Type 87 prefabricated railway steel bridge. [0003] At present, the application of prefabricated steel bridges is mainly concentrated on roads and railways, and there is no prefabricated steel bridge for urban pe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D15/133E01D19/00E01D19/16
Inventor 董军池沛戴哲彬顾忠兴
Owner NANJING TECH UNIV
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