Large-scale steel box beam ashore construction method

A construction method and technology of steel box girders, applied in bridges, bridge construction, erection/assembly of bridges, etc., can solve the problems of high construction cost, expensive use of floating cranes, failure of floating cranes to reach the normal lifting position, etc., and save money , The effect of shortening the project cycle

Active Publication Date: 2014-01-08
CCCC FIRST HIGHWAY XIAMEN ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Objective limitations or disadvantages of existing technologies: floating crane equipment has a certain draft requirement. When the water level is shallow or restricted by navigation, the floating crane cannot reach the normal lifting position or the bridge site, resulting in the failure of the steel box girder. Installation on shore, and the cost of using floating cranes is quite expensive, often costing millions, and the construction cost is huge

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  • Large-scale steel box beam ashore construction method
  • Large-scale steel box beam ashore construction method
  • Large-scale steel box beam ashore construction method

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Embodiment Construction

[0035] The present invention will be described in further detail below through specific implementation examples and in conjunction with the accompanying drawings.

[0036] The present invention provides a large-scale steel box girder landing construction method, including the steps: S1, steel box girder 1 is transported by water, the steel box girder 1 is transported by water, and the steel box girder 1 is placed by carrying wooden pier 2 and air bag 3 On the deck of the ship; S2, setting of the positioning device, setting of the ground anchor 4 on the shore, and there are at least four ground anchors 4; Sliding ramp 6 is extended on the shore, and slide rail 7 is laid on the sliding ramp 6; S4, the air bag is supported on the shore, and the air bag is used to support the steel box girder 1, and the steel box girder 1 is transferred to the shore by the air bag. ashore.

[0037] In the above method, the airbag 3 is used to realize the lifting, transporting, and up and down ope...

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Abstract

The invention relates to the technical field of bridge construction, in particular to a large-scale steel box beam ashore construction method. The large-scale steel box beam ashore construction method comprises the steps that water transportation of steel box beams is carried out, boats are used for carrying out the water transportation on the steel box beams, and the steel box beams are arranged on the decks of the boats through bearing timber piers and air bags; locating devices are set, ground anchors are arranged on a shore, and at least four ground anchors are arranged; a shore connecting dock is constructed, retaining walls are built up, sliding rampways are constructed from the retaining walls towards the shore in a stretching mode, and sliding rails are paved on the sliding rampways; ashore bearing is carrying out on the steel box beams by using the air bags, and the steel box beams are transferred to the shore through the air bags. According to the large-scale steel box beam ashore construction method, the operation of lifting, transferring, going aboard and going ashore on the steel box beams is achieved by adopting the air bags, the application of air bag operation is small in restriction of sites, a lifting function and a moving transporting function are provided, large-scale mechanical equipment is not needed, therefore, project cycles can be shortened, and a great amount of capital can be saved.

Description

technical field [0001] The invention relates to the technical field of bridge construction, and more specifically relates to a method for ashore construction of a large steel box girder. Background technique [0002] In the hoisting construction of steel box girders of large bridges, often limited by the terrain and water level, when several sections of steel box girders near the tower are transported to the construction site by barge, they cannot reach the vertical lifting position of the deck crane. In this case, the steel box girder The box girder is generally lifted by a large floating crane, placed on the trestle platform that has been erected in advance, and then pulled to the vicinity of the cable tower by a hoist, and then vertically lifted and installed by a bridge deck crane. [0003] Objective limitations or disadvantages of existing technologies: floating crane equipment has a certain draft requirement. When the water level is shallow or restricted by navigation,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00
Inventor 张利杨天伟陈康何润卢磊
Owner CCCC FIRST HIGHWAY XIAMEN ENG
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