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Track traffic and urban road integrated tie arch bridge

A technology for rail transit and tied arch bridges, applied to roads, arch bridges, roads, etc., can solve the problems of poor economic effect and lack of layout considerations in separate construction, and achieve the effects of economical cost, shortened construction period, and convenient construction, transportation, and lifting installation

Inactive Publication Date: 2004-03-24
SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

In terms of daily management, separate construction is easier than joint construction, and is convenient for maintenance and management, but separate construction often lacks unified layout considerations, and the economic effect is also poor

Method used

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  • Track traffic and urban road integrated tie arch bridge
  • Track traffic and urban road integrated tie arch bridge
  • Track traffic and urban road integrated tie arch bridge

Examples

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Effect test

Embodiment

[0017] Example: An urban design scheme is an under-supported tie-bar arch jointly built by rail transit and urban road bridges. The main bridge is horizontally arranged as two sets of arch ribs 1 with a total width of 46.9m. The bridge deck connected by crossbeams between two sets of arch ribs is arranged as two-lane rail transit 7 with a net width of 7.7m. The up and down lines of road motor vehicles are respectively arranged in two sets of arch ribs. The one-way width of motor vehicle lanes is 14m. The outer side of the rib is cantilevered by side longitudinal beams, with a clear width of 2.75m.

[0018] The specific scheme is a single-span simply supported bottom-supported tie-rod arch bridge with a span of 78m and a bridge width of 46.9m. The design fully considers the interaction between road vehicles and rail traffic, and the structure adopts rigid arch and rigid beams. Arch rib 1 is the main load-bearing member, which is steel pipe concrete, and is connected with wind ...

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Abstract

The present invention relates to a track transportation and urban road integrated tied-arch bridge, and it is characterized by that the described track transportation and urban road system adopts four sheets of arch rib, the track transportation is positioned in the centre, the up-and-down traffic lanes are set at two sides, and the walkway is set at most outside. Said invention can combine track transportation bridge and urban road bridge together, can adopt steel tube concrete structure and its cost is low.

Description

Technical field: [0001] The invention belongs to the new technical field of bridge engineering involved in civil engineering, and in particular relates to a tie-bar arch bridge integrated with rail transit and urban roads. Background technique: [0002] The urban bridges spanning lines or rivers generally have a span between 60m and 200m. Bridge types suitable for this span mainly include prestressed concrete continuous girder bridges, cable-stayed bridges, suspension bridges and tied arch bridges. [0003] The construction of rail transit viaducts in cities is generally arranged along the central green belt of the existing or planned main road. When it is necessary to cross the river, there are two crossing forms: separate construction and joint construction. [0004] Technically, due to the joint construction of rail transit and urban roads (generally main roads), the bridge width is generally about 50m, which are relatively wide, and the technical difficulty is relativel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C1/00E01D4/00
Inventor 丁兴国葛竞辉张俊杰
Owner SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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