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DJ180 Bridge Erecting Machine Erecting Method of Passing Hole of Box Girder of Long-span Highway

A technology of 1.DJ180, bridge erection machine, applied in the direction of erecting/assembling bridges, bridges, bridge construction, etc., can solve the problems of small span and inability to apply, and achieve the effects of excellent performance, convenient transportation and assembly, and light weight

Inactive Publication Date: 2015-10-28
CHINA RAILWAY SIXTH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the DJ180 bridge erecting machine is mainly used for railway girder erection, and road box girders are less involved. Since the weight of small road box girders does not exceed 168 tons and the span is not greater than 40 meters, when using DJ180 bridge erection machine to erect, in the process of passing holes , the span of this bridge erecting machine is too small to be applied

Method used

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  • DJ180 Bridge Erecting Machine Erecting Method of Passing Hole of Box Girder of Long-span Highway
  • DJ180 Bridge Erecting Machine Erecting Method of Passing Hole of Box Girder of Long-span Highway
  • DJ180 Bridge Erecting Machine Erecting Method of Passing Hole of Box Girder of Long-span Highway

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specific example 1

[0074] There are 16 girders in a railway bridge project on the Jiexi Line in a certain city, with a span of 40 meters and a maximum weight of 168 tons. In July 2012, the erection of all girders was successfully completed using the DJ180 bridge erecting machine.

example 2

[0076] About 300 meters to the west of a certain bridge, spanning the flood discharge channel of Yongding River, it is divided into two parts, the main road bridge and the south auxiliary road bridge, with a total length of 105 meters. The main road bridge is: 30m+40m+30 (8 pieces per hole) simply supported small box girder. The auxiliary road bridge is: 30m+40m+30m (4 pieces per hole) simply supported small box girder structure. Among them, the 30m prefabricated box girder is 30m long, 2.5m wide, 1.5m high and weighs 101 tons. 40m prefabricated box girder: 40.5m long, 2.5m wide, 1.9m high, and weighs 159 tons. In May 2012, the erection of all girders was successfully completed using the DJ180 bridge erecting machine.

[0077] The benefit analysis of the present invention in actual use:

[0078] The main road of an industrial park spans the overpass of Jiexi Line. The total length of the bridge is 95.3 meters, the span of the bridge is 40 meters, and the maximum weight of t...

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Abstract

The invention discloses a method for erecting large-span highway box girder holes with a DJ180 bridge erecting machine, which belongs to the technical field of highway bridge construction. When erecting a highway box beam with a span of 40 meters, it is necessary to increase the counterweight to prevent the bridge erecting machine from tilting forward. Through the hole, the No. 3 column is retracted when passing the hole, and before the No. 0 driving machine arm reaches the next pier, the front end of the beam body is lifted by a truss truck, and then the boom is driven to make the No. 0 column reach the next pier. After the support of No. 0 column and No. 3 column is completed, withdraw the counterweight. The present invention is mainly aimed at the construction technology of small box girder girders with a weight of no more than 168 tons and a span of no more than 40 meters. Features such as low cost.

Description

technical field [0001] The invention relates to a technology for erecting a highway box girder, which belongs to the technical field of highway bridge construction, in particular to a method for erecting a large-span highway box girder through a hole by a DJ180 bridge erecting machine. Background technique [0002] With the rapid development of my country's iron and steel industry and steel structure technology, the number of steel structure bridges is also increasing. The steel box girder structure has a large span, long service life, high torsional rigidity of the box section, small section height, and good integrity. The characteristics make the steel box girder structure widely used in the design and construction of municipal and highway bridges, and has become the first choice for long-span main girders. Due to the development of bridge technology and the requirements of traffic guidance, the span of urban steel box girders is also increasing, and shows a trend of substa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D21/00
Inventor 侯旭雷陈永刚鄢雨红付强胡正勇鲍立达温立新
Owner CHINA RAILWAY SIXTH GRP CO LTD
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