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Self-balanced umbrella-shaped modular pedestrian bridge structure

A modular and pedestrian bridge technology, applied in bridges, bridge parts, bridge construction, etc., can solve problems such as difficult construction, long construction period, and large traffic impact, so as to achieve clear force, safe method, and clear structural force Effect

Active Publication Date: 2016-03-30
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the irregularities of the existing pedestrian overpass or overpass, the construction is difficult, the construction period is long, and the traffic is greatly affected

Method used

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  • Self-balanced umbrella-shaped modular pedestrian bridge structure
  • Self-balanced umbrella-shaped modular pedestrian bridge structure
  • Self-balanced umbrella-shaped modular pedestrian bridge structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] inverted modular structure

[0045] On the side, it includes: balance counterweight 1, upright column 2, diagonal braces 3 on both sides, deck strings 4, arc strings 5, radial cables 32, combined umbrella structure, bridge deck strings 4, A node 6 is formed between the radial stay cables 32 and the arc-shaped string cables 5 . The column 2 forms a hinge point with the diagonal strut 3 and the radial stay cable 32 .

[0046] In the transverse direction, two identical umbrella structures on both sides are connected by the upper cross brace 10, the bridge deck 9, and the lower cross brace 8 and arranged symmetrically along the central axis of the bridge deck 9. The bridge deck is arranged on the bridge of the two umbrella structures. Face string cable 4 on. The bridge deck 9 is used to bear the vertical crowd load.

[0047] In terms of stress: bridge deck strings 4 are connected to arc strings 5 ​​to keep the bridge deck smooth, while radially extending struts 6 are con...

Embodiment 2

[0053] upright modular structure

[0054] On the side, it includes: pier columns 21, diagonal braces 3, deck strings 4, arc strings 5, radial cables 32 (or radial braces 31), auxiliary braces 11, combined umbrella structures, Each radial stay 32 forms a node 6 with the arcuate chord 5 . The two ends of the arc-shaped chord 5 are connected with the outermost two diagonal struts 3 to form an umbrella-shaped sector. Twist joints are connected, and their other ends are connected with arc-shaped string cables 5 at radial intersections simultaneously. The bridge deck strings 4 are connected with the arc strings 5 ​​to keep the bridge deck smooth. The bridge deck strings 4 are connected with the arc strings 5 ​​by radially extending radial struts 31 and auxiliary struts 11 are added to achieve overall stability. .

[0055] In the transverse direction, two identical umbrella structures on both sides are connected by the upper cross brace 10, the bridge deck 9, and the lower cross bra...

Embodiment 3

[0062] Symmetrical inclined arrangement

[0063] Partial and full folding tilting arrangement

[0064] Different from Embodiment 2 and Embodiment 3, this embodiment is no longer designed as "parallel arrangement", but: two identical umbrella structures on both sides are connected by bridge deck 9 and stay cable 10, and along the The central axis of the bridge deck 9 is arranged symmetrically, and the bridge deck 9 and the stay cables 10 are connected by two auxiliary struts 11 . The bridge deck 9 is arranged on the deck strings 4 of the two umbrella structures.

[0065] Symmetrical inclined arrangement, 3 intersection points of the diagonal braces on both sides of the axisymmetric side are merged or supported by horizontal connecting rods, which can bear horizontal tension and vertical crowd load.

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Abstract

A self-balanced umbrella-shaped modular pedestrian bridge structure is characterized by being formed by an umbrella-shaped modular pedestrian bridge structure, being singly formed by an umbrella-shaped inverted modular structure, being singly formed by an umbrella-shaped upright modular structure or being formed by an inverted module and an upright module connected with each other in series at an interval. The inverted module and the upright module are connected with each other in series at an interval; the inverted module provides vertical balancing weight load to the upright module; and the upright module provides vertical supporting to the inverted module; therefore, the setting of a supporting system is reduced and the crossing range of the bridge is also enlarged. The self-balanced umbrella-shaped modular pedestrian bridge structure provided by the invention provides a rapid, safe, economic and practical method for the crossing of urban footbridges and Interchange, highways and rivers and exerts great promotion and application values.

Description

technical field [0001] The invention belongs to the field of bridge engineering, in particular to the technical field of pedestrian bridges, in particular to a self-balancing umbrella-shaped modular pedestrian bridge structure. Background technique [0002] With the acceleration of urbanization in our country, urban roads are getting wider and wider, the rapid development of urban private vehicles and the increase of urban population, the interaction of pedestrian crossing and car traffic, pedestrian overpass and overpass are the most economical and effective solutions to this problem. The most efficient way. [0003] Pedestrian overpasses or overpasses currently under construction are difficult to construct due to their irregularities, have a long construction period, and have a relatively large impact on traffic. If there is a standard modular structure, through factory prefabricated components, on-site assembly and installation, or factory prefabrication and assembly, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D12/00E01D19/00
CPCE01D12/00E01D19/00
Inventor 李方元黄军超
Owner TONGJI UNIV
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