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Constructing method of through steel box arch bridge

It is a construction method and the technology of underlayment, which is applied in the direction of arch bridge, bridge, bridge construction, etc., and can solve the problems of difficult design and construction.

Active Publication Date: 2018-09-14
CCCC THIRD HARBOR ENG +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] (5) The cable-stayed buckle-hanging system on both sides of the strait is an asymmetric structure, which is difficult to design and construct

Method used

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  • Constructing method of through steel box arch bridge
  • Constructing method of through steel box arch bridge
  • Constructing method of through steel box arch bridge

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Experimental program
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Embodiment Construction

[0081] The present invention will be further described below with reference to the accompanying drawings.

[0082] see Figure 1 to Figure 10 , the present invention is a construction method of the main bridge of the under-type steel box arch bridge, the under-type steel box arch bridge includes the south bank approach bridge 200, the north bank approach bridge 300 and the main bridge 100. The main bridge 100 includes an arch rib 1, a hanger 3, a main beam 4 and an orthotropic bridge deck 5; the arch rib 1 has two upstream and downstream, and the middle is connected by 7 permanent transverse braces 2, and the single arch 1 is divided into 37 Each section includes arch feet 10 at both ends; the main beam 4 includes longitudinal beams and beams and is divided into 37 sections along the longitudinal direction of the bridge deck; the beam includes two end beams 40 and several general beams, and the two end beams 40 are arranged respectively At the arch foot on the north bank side...

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Abstract

The invention discloses a constructing method of a through steel box arch bridge. Construction is conducted in the sequence of arches first and then beams, and the method includes the main bridge starting section construction process, the support area main beam construction process, the support area arch rib construction process, the cantilever area arch rib construction process, the hanging rod construction process, the cantilever area main beam construction process, the bridge deck slab construction process and the system conversion construction process. Cable hanging construction is adoptedfor the cantilever area arch rib construction process and the cantilever area main beam construction process. By means of the construction method, the construction period can be effectively shortened, the work efficiency is improved, it is ensured that the bridge profile conforms to the design and standard requirements, risks can be reduced, and the potential safety hazards of upstream power station discharged flood and rainy flood season flood on temporary supporting piers and other structures at the center of a riverway are reduced to the maximum extent.

Description

technical field [0001] The invention relates to a construction method of a bottom bearing type steel box arch bridge. Background technique [0002] The bottom bearing type steel box arch bridge involved in the present invention has a total length of 402.5m, a main bridge span of 230m, a main bridge length of 233.2m, a main bridge deck width of 34.12m, a total length of 169.3m from both sides of the approach bridge, and an approach bridge deck width of 28.9m. Meter. The main bridge is a bottom-supported simply supported arch bridge with a steel structure. The upper part of the main bridge includes arch ribs, longitudinal beams, arch feet, beams, suspension rods, transverse braces, deck orthotropic plates, and arch rib decorative structures. The main bridge pier at the lower part of the main bridge adopts the portal frame structure pier, and the pier column and the pier top beam are all box-shaped hollow sections. [0003] Arch rib: There are two left and right on the outsid...

Claims

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Application Information

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IPC IPC(8): E01D21/00E01D4/00
CPCE01D4/00E01D21/00
Inventor 林乌昌陈天生饶庆洪天识卢绍文
Owner CCCC THIRD HARBOR ENG
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