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Offshore bridge erecting machine and construction method thereof

A construction method and bridge erecting machine technology, applied in erecting/assembling bridges, bridges, bridge construction, etc., can solve problems such as slow construction progress, high construction cost, and short continuous operation time

Active Publication Date: 2021-02-09
SINOHYDRO BUREAU 5
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The construction technology of using traditional crane ships and barges to install prefabricated components is greatly affected by factors such as swells and tides, resulting in short continuous operation time, slow construction progress, and high construction costs

Method used

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  • Offshore bridge erecting machine and construction method thereof
  • Offshore bridge erecting machine and construction method thereof
  • Offshore bridge erecting machine and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The present invention is based on the construction conditions of a finger-type wharf for an actual project, and carries out a series of studies on refitting the bridge erecting machine to form a complete set of construction methods for the superstructure of the high-pile wharf. Considering comprehensive requirements and construction schedule, special equipment is used for construction. This embodiment mainly elaborates on the design of special equipment, assembly and load test requirements, the process of lifting and installing concrete prefabricated parts, and the key points of mobile and in-place construction technology.

[0043] The front leg of the offshore bridge erecting machine is supported on the top of the front pile, which is the front end support point when erecting the beam. In order to make the front outriggers adapt to the horizontal deviation of the lower steel pipe piles or concrete piles, a transition joint is provided on the front outrigger steel pipe ...

Embodiment 2

[0057] As a preferred embodiment of the present invention, with reference to the attached Figure 1-7 , this embodiment discloses a bridge-erecting machine at sea, comprising a main girder, a front leg, a middle leg and a rear leg; the front leg of the bridge-erecting machine is connected to the main beam of the bridge-erecting machine The lower chord is locked, and the front outrigger transverse travel mechanism is installed at the lower part of the front outrigger; the upright column of the front outrigger is set as an inner and outer joint structure, and is equipped with a hydraulic jack for adjusting the height of the front outrigger; the front outrigger transverse travel mechanism The bottom of the track beam is connected by bolts to a number of transition sections that are sleeved on the top of the pile, and the distance between the transition sections at the bottom of the track beam of the front outrigger lateral travel mechanism is set according to the distance between ...

Embodiment 3

[0063] As another preferred embodiment of the present invention, refer to the attached Figure 1-7 , this example discloses:

[0064] A construction method of an offshore bridge erecting machine is characterized in that it comprises the following steps:

[0065] Step A, the assembly step of the bridge erecting machine, assemble the bridge erecting machine according to the installation and operation specifications of the bridge erecting machine; when assembling the bridge erecting machine, lock the front leg of the bridge erecting machine with the lower string of the main girder of the bridge erecting machine through the double-ended studs , the front outrigger transverse walking mechanism is installed at the lower part of the front outrigger; the upright of the front outrigger is set as an inner and outer joint structure, and a hydraulic jack is configured to adjust the height of the front outrigger;

[0066] At the bottom of the track beam of the front outrigger transverse r...

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Abstract

The invention discloses an offshore bridge girder erection machine and a construction method thereof, and relates to the technical field of offshore platform construction. The construction method of the offshore bridge girder erection machine comprises the steps of bridge girder erection machine assembling, bridge girder erection machine testing, bridge girder erection machine in-place placing, prefabricated part installing and bridge girder erection machine moving. According to the construction method of the offshore bridge girder erection machine, improvement is performed on the basis of bridge girder erection machines for highways and railways, a front supporting leg structure of the bridge girder erection machine is transformed, and is suitable for requirements for different steel pipepile intervals and loads; meanwhile, the transition joints are arranged on the steel pipe piles of the front supporting legs, and the function of front-back and left-right adjustment is achieved so as to adapt to the horizontal construction deviation of the steel pipe piles or the concrete piles on the lower portion; the middle supporting leg structure is improved, so that the middle supporting leg structure can adapt to the characteristic that steel bars on pier caps at the tops of steel pipe piles are complex, water operation is changed into road construction finally, influences of adversefactors such as surges and tides are reduced, meanwhile, the construction progress is accelerated, the installation quality is improved, and the construction cost is reduced.

Description

technical field [0001] The invention relates to the technical field of offshore construction, and more specifically relates to an offshore bridge erecting machine and a construction method thereof. Background technique [0002] Offshore platforms are generally high-piled wharfs such as wharf platforms and ship lift platforms, and are generally located in relatively deep sea areas, and sea conditions are often affected by factors such as tides and sea winds. [0003] The lower structure of the high-piled wharf includes underwater structures such as steel pipe piles and concrete piles, and the upper part is mostly a prefabricated concrete beam-slab structure. For a long time, the installation of prefabricated components on the upper part of high-pile beam-slab wharf has basically relied on large crane ships and barges. The construction process of using traditional crane ships and barges to install prefabricated components is greatly affected by factors such as swells and tide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00
CPCE01D21/00
Inventor 万山红刘建伟赵奎刘贺平付亚东唐雄杨志勇王昭黄红占
Owner SINOHYDRO BUREAU 5
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