Construction method of hoisting arch-girder combined bridge

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...

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

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