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Hoisting method for top push climbing and moving type cable hoisting arch bridge

A hoisting method and jacking technology, which is applied to arch bridges, bridges, bridge forms, etc., can solve the problems of hidden safety hazards in tower movement, complicated and cumbersome movement, etc., and achieve the effects of reducing hoisting risks, broad vision, and simple structure

Inactive Publication Date: 2017-01-04
云南云岭桥隧科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, more steel is used for tower erection, and the movement is more complicated and cumbersome
And there is a safety hazard in the movement of the tower

Method used

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  • Hoisting method for top push climbing and moving type cable hoisting arch bridge
  • Hoisting method for top push climbing and moving type cable hoisting arch bridge
  • Hoisting method for top push climbing and moving type cable hoisting arch bridge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0169] Such as Figure 12 As shown, the total length of Tuoba Bridge is 135.12m+13.90m+10.53m=159.55m. The bridge type is an overhead box-shaped arch bridge, which is hoisted and constructed by jacking and climbing cable cranes on both sides of the tower without towers. The calculated span of the main arch is 100m, and the calculated rise-span ratio is 1 / 5. The superstructure of the main arch is prefabricated columns, cover beams and 11×10m prefabricated T-beams. 12m reinforced concrete cast-in-place box girder.

[0170] The main arch rib of the Tuoba Bridge is a horizontal single-box 6-chamber section, and each rib is hoisted in 5 sections, with a maximum hoisting weight of about 75 tons. Compared with the conventional cable crane, the hoisting of 30 pieces of arch boxes saves 12 days of construction period, closes the arch boxes and saves nearly 40% of the construction period, and hoisting the upper structure of the arch ring saves about 30% of the construction period. The...

Embodiment 2

[0172] The Kawagebo Bridge is located in Deqin County, Diqing Prefecture, Yunnan Province, across the Lancang River, 33 kilometers away from Deqin County, connecting the Meili Snow Mountain Scenic Road and the branch line of the Dewei Secondary Highway. The width of the bridge deck is 10 meters, the bridge length is 115.624 meters, the design vehicle load road - II level, the net span of the main arch ring is 80 meters, the rise-span ratio is 1 / 6, the height of the arch ring is 1.7 meters, and the concrete of the arch ring is C40.

[0173] The Kawagebo Bridge has a tight construction schedule and high quality requirements. In order to ensure the construction quality of Kawagebo, reduce costs, ensure the construction period and prevent safety accidents, Yunling Expressway Construction Group Co., Ltd. Construction Method of Climbing Cable Suspension Arch Bridge". Construction started in June 2014 and was completed and opened to traffic in July 2015.

Embodiment 3

[0175] The Huangdeng Bridge is located about 900m downstream of the dam of the Huangdeng Hydropower Station. It is the main transportation hub connecting the left and right banks during the construction of the Huangdeng Hydropower Station and during the operation of the power station. The clear span of the bridge is 114m, the length of the whole bridge is 168.272m, and the length of the approach bridges on both sides is 25m. The total length of the whole bridge is about 170m. 1.5m, design load steam-63, hanging-120, designed by PowerChina Kunming Survey and Design Research Institute Co., Ltd., and constructed by Yunnan Yunqiao Construction Co., Ltd. The "Histing Method of Lifting and Climbing Cable Suspension Arch Bridge without Tower on Both Banks" is adopted for construction.

[0176] The field application shows that this construction method effectively improves the construction quality, greatly increases the hoisting speed, and has significant benefits in saving the constru...

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Abstract

The invention discloses a hoisting method for a top push climbing and moving type cable hoisting system arch bridge, and aims to provide a hoisting method for the top push climbing and moving type cable hoisting system arch bridge which is high in construction speed. The hoisting method comprises the following steps of (1) drawing up a construction scheme; (2) mounting auxiliary hoisting equipment; (3) constructing an anchor cable and a ground anchorage beam; (4) mounting a handcar; (5) mounting a main cable; (6) mounting a hydraulic propelling system; (7) mounting a jacking-up trolley, a traction cable and a lifting cable; (8) controlling the sagging of the main cable; (9) commissioning a cable hoisting system; (10) hoisting arch boxes; (11) hoisting vertical columns; and (12) hoisting and casting a T beam and a bridge surface system. The hoisting method disclosed by the invention is suitable for erection of prefabricated arch bridge at a river of which two river banks are high, or a canyon of which two banks are steep, namely a deep V-shaped bridge site, and can be used for assembling other prefabricated bridges.

Description

technical field [0001] The invention relates to the technical field of arch bridge construction, in particular to a method for hoisting a push-and-crawl type cable-suspended arch bridge. Background technique [0002] With the rapid development of highway construction in Yunnan, there are many bridges across mountains and canyons in Yunnan. Many bridges use prefabricated hoisting methods to complete the construction of the main structure of the bridge because they cannot be cast-in-situ, or due to factors such as construction technology and cost, especially the assembly of long-span prefabricated arch bridges is more common. [0003] Cable crane system is a commonly used and relatively mature bridge component hoisting system. However, at present, most of the cable cranes are fixed at both ends, and the non-cable crane main cable axis bridge components must be hoisted with a lateral side pull system to make the components in place, or use multiple sets of cable crane systems,...

Claims

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Application Information

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IPC IPC(8): E01D21/00E01D4/00
CPCE01D21/00E01D4/00
Inventor 陈宙翔常城赵卫冬张兴波陈江
Owner 云南云岭桥隧科技有限公司
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