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Construction technology of large-span eccentric leaning steel box tie-rod arch bridge floating tow frame

A tie-bar arch bridge and construction technology technology, which is applied in the direction of arch bridge, bridge construction, erection/assembly bridge, etc., can solve the problems of heavy task, complicated process, and short closure time

Active Publication Date: 2018-04-03
NO 1 ENG LIMITED OF CR20G
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main bridge of Yunli Bridge has a single-aperture span of 100m, and an inward-sloping oblique arch is arranged on both sides of the left and right main arch ribs. The angle between the main inclined arch ring and the vertical plane is 19°. The weight is about 2700t. How to use the formulated comprehensive construction technology to safely and reliably complete the onshore assembly and floating tow erection of such a large-span, heavy-weight eccentric leaning arch bridge, the process is complex, difficult, and safety risks are high, and the maximum cantilever reaches 23.2 m, there are high requirements for the foundation and supports on the side of the river. At the same time, the Beijing-Hangzhou Canal has frequent ships, which allow a short sailing time. It is required to complete the floating and towing work within the sailing time. The task is heavy. At present, there is no successful experience for reference. less data

Method used

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  • Construction technology of large-span eccentric leaning steel box tie-rod arch bridge floating tow frame
  • Construction technology of large-span eccentric leaning steel box tie-rod arch bridge floating tow frame
  • Construction technology of large-span eccentric leaning steel box tie-rod arch bridge floating tow frame

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Embodiment Construction

[0088] like figure 1 Shown is a large-span eccentric reclining steel box tie arch bridge floating tow frame construction process. A rod arch bridge and comprising a bridge substructure and a bridge superstructure supported on said bridge substructure, in combination Picture 1-1 , Figure 1-2 and Figure 1-3 , the bridge superstructure includes two left and right arch bridge superstructures arranged symmetrically, the arch bridge superstructure includes a main arch rib 1 arranged vertically, an oblique arch rib 2 located outside the main arch rib 1 and an arch rib located on the main arch rib 1 and the lower support structure of the arch rib below the inclined arch rib 2, the inclined arch rib 2 gradually inclines outward from top to bottom; the lower support structure of the arch rib in the two arch bridge superstructures is connected through the lower part of the arch rib The structure is fastened and connected as one, and the two arch rib lower support structures and the...

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Abstract

The invention discloses a large-span eccentric leaning type steel box tied-arch bridge float-towing erection construction technology. The arch bridge to be constructed is a tied-arch bridge erected on a riverway, and a bridge superstructure comprises bilaterally symmetrically arranged arch bridge superstructures. The float-towing erection construction of the arch bridge to be constructed comprises the steps: 1, making first-phase preparations: sliding system construction and mobile support device processing; 2, bridge superstructure ground splicing: respectively splicing the two arch bridge superstructures by using sliding systems; 3, bridge superstructure float-towing construction, wherein the process is as follows: sliding system construction and arch bridge superstructure float-towing construction; 4, arch rib lower connection structure construction; and 5, bridge deck board paving. The technology is simple in step, and reasonable in design and simple and convenient in construction, the construction effect is good, the large-span eccentric leaning type steel box tied-arch bridge float-towing erection construction process can be completed simply and conveniently and quickly, and the construction quality is easily guaranteed.

Description

technical field [0001] The invention belongs to the technical field of bridge construction, and in particular relates to a construction process for a floating tow frame of a large-span eccentric leaning type steel box tie rod arch bridge. Background technique [0002] The Sunan Canal is one of the main channels of water transportation in the country. It is the main component of the Beijing-Hangzhou Grand Canal. The main axis of the web. The navigation clearance requirement of the tertiary waterway regulation project of the Wujiang section of the South Jiangsu Canal is 80×7m. The newly-built Yunli Bridge is located at the place where Yunli Road, Wujiang District, Suzhou City crosses the Beijing-Hangzhou Canal for the third-level waterway regulation project of the Wujiang section of the South Jiangsu Canal. 100+3×(3×26)m, of which the main bridge is a leaning tied arch bridge, and the approach bridge is a prestressed concrete continuous box girder. The main bridge of the ne...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D21/00E01D4/00
CPCE01D4/00E01D21/00
Inventor 杜越张广义李洁勇刘强华陈会景钟轩严朝锋王永丽
Owner NO 1 ENG LIMITED OF CR20G
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