Rapidly assembled steel footbridge in truss string structure

A string truss and assembled technology, which is applied in the direction of bridges, bridge parts, bridge construction, etc., can solve the problems of large steel consumption, low safety factor, and slow assembly speed, so as to achieve light weight, reasonable structure, easy assembly and The effect of construction

Active Publication Date: 2012-12-05
NANJING UNIV OF TECH
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  • 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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  • Rapidly assembled steel footbridge in truss string structure
  • Rapidly assembled steel footbridge in truss string structure
  • Rapidly assembled steel footbridge in truss string structure

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0023] The present invention will be described in detail below with reference to specific embodiments.

[0024] figure 1 A quick-assembled tension-string truss pedestrian steel bridge proposed by the present invention includes a bridge deck, bridge piers on both sides, and two or more main girders arranged under the bridge deck and arranged side by side along the cross-sectional direction. It is a chord main beam, including an assembled truss, a vertical strut 6 and a steel cable 7. The assembled truss consists of a standard triangular truss unit 2, an end triangular truss unit 1, an end chord 3, a standard chord 4, an adjustable The chords 5 are connected by steel pins. Standard triangular truss unit 2, end triangular truss unit 1 and end chord 3, standard chord 4, and adjustable chord 5 are connected by steel pins to form the upper truss of the chord main beam; The vertical strut 6 is then anchored to the other end of the truss to form a chord structure, and the line shape...

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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 truss pedestrian steel bridge. Background technique [0002] Prefabricated steel bridges are standard bridges that meet the requirements of strength and stability, have a short service life, are easy to dismantle and replace, and can be built quickly. According to different application fields, it is divided into prefabricated highway steel bridges and prefabricated railway steel bridges. Prefabricated highway steel bridges mainly include "321" prefabricated highway steel bridges and 200-type prefabricated highway steel bridges; prefabricated railway steel bridges mainly include The six-four-type prefabricated railway steel bridge and the eight-seven-type prefabricated railway steel bridge. [0003] At present, the application of prefabricated steel bridges is mainly concentrated in highways and railways, and there is no prefabricated steel b...

Claims

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Application Information

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