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Arched beam combination bridge lifting construction method

A construction method and technology of arched beams, applied in bridges, bridge construction, erection/assembly of bridges, etc., can solve problems such as large impact on urban environment and residents' lives, occupying a large construction site, improved technology has not been disclosed, etc., to achieve easy The effect of controlling construction quality, reducing construction cost and construction period, and keeping the construction environment clean

Inactive Publication Date: 2013-09-11
YONGSHENG CONSTR GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, in the current construction of arch-beam bridges, complex and numerous auxiliary temporary facilities require a large construction site, a large number of laborers and large-tonnage cranes, which will occupy a large construction site during the construction process. Urban traffic brings great inconvenience, and there are still shortcomings such as long construction period, high cost, and great impact on surrounding urban environment and residents' life, so it needs to be improved urgently
[0009] Relevant improved technologies have not been made public

Method used

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  • Arched beam combination bridge lifting construction method
  • Arched beam combination bridge lifting construction method
  • Arched beam combination bridge lifting construction method

Examples

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Embodiment

[0046] Example: The arch-beam combination bridge adopts a suspended arch structure, the material is Q345D, and the cross-border combination is 40 meters + 32 meters; the height of the 40-meter-span A arch rib is 7.8 meters, and the 32-meter C-span arch rib height is 6 meters; the steel box The girder height is 1 meter, and the width of the whole bridge is 6.5 meters; the two-span steel box girders are arranged continuously, the main span width is 6.5 meters, and the thickness of the roof is 12mm and 20mm; The standard rib spacing is 315mm, and the whole bridge is arranged continuously; the standard thickness of the bottom plate is 14mm, and the bottom plate at the local support position is thickened to 20mm. There are 3 webs and 16 suspension cables for the whole bridge; the upper and lower arches of large and small spans The rib is a constant section box girder section with a slab thickness of 20mm. The exterior is decorated with a 6mm thin slab to form a trapezoidal section t...

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Abstract

Provided is an arched beam combination bridge lifting construction method. An arched beam combination component comprises five beam sections, three arch ribs, temporary supports 13, a foundation embedded part 14, permanent supports 15 and slings 16, wherein the five beam sections comprise an A beam section 8, a B beam section 9, a C beam section 10, a D beam section 11 and an E beam section 12; and the three arch ribs comprise an A arch rib, a C arch rib and a B arch rib 4, wherein the A arch rib is formed by an A-1 arch rib 1, an A-3 arch rib 2 and an A2 arch rib 3, and the C arch rib is formed by a C-1 arch rib 5, a C-3 arch rib 6 and a C-2 arch rib 7. Lifting construction is performed on the temporary supports and the permanent supports in a balanced sequence of first performing beam construction and then performing arch construction, the span of the arched beam combination component can be greatly improved, auxiliary construction of the temporary supports and the like is less, an occupied space in construction is small, the construction environment is tidy, influence on ground traffic of the construction site is small, manual consumption is greatly reduced, erection of a whole bridge can be finished only by fewer workers, construction cost is reduced, and a construction period is shortened. Operation in construction is convenient, and construction safety and construction quality are easy to control.

Description

technical field [0001] The invention relates to E01D bridge technology, in particular to a hoisting construction method of an arch-beam combined bridge. Background technique [0002] In the prior art, the design and construction of arch-girder combined bridges has begun to receive widespread attention. Bridge engineering technology has made great progress in recent years, especially for long-span bridges. Since the introduction of cable-stayed bridge design and construction technology, both domestic and foreign , except for suspension bridges, the spanning capacity should be led by push cable-stayed bridges. However, the anchorage of the cable-stayed cables and the anti-corrosion of the cables must be costly. Therefore, the economical span of the concrete cable-stayed bridge is generally more than 200m. For bridges ranging from 60m to 200m, the bridge forms that can participate in the competition are mainly concrete arch bridges and prestressed concrete continuous beam brid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00
Inventor 缪建国毛永强缪爱军张伟
Owner YONGSHENG CONSTR GRP
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