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Overweight main girder turnover device and turnover method

A technology of large slab girders and slab girders, which is applied in the field of turning over large slab girders, can solve problems such as unsatisfactory driving capacity, adverse effects of driving, and large inertial impacts, so as to save turning time, save costs, and reduce effect of load

Active Publication Date: 2013-01-09
SHANGHAI BAOYE GRP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The following problems exist in the turning over of super-long, super-high and overweight plate girder H-shaped members: the lifting capacity of the crane cannot meet the requirements of turning over the overweight plate girder; Security risks
The conventional use of frame flipping will increase the weight, and due to the gap between the components and the frame, it will cause a large inertial impact, which will have an adverse effect on driving, and there are certain safety hazards

Method used

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  • Overweight main girder turnover device and turnover method

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Embodiment Construction

[0015] Such as figure 1 and figure 2 Shown is an oversized slab girder turning device, the turning device is arranged at one end of the slab girder and includes two semicircular 1, 2 segments formed by splicing together, the two semicircular 1, 2 The arcs have different lengths and are connected by connecting plates 3 and bolts 4, and the chords are provided with holes matching the cross-sectional shape of the super heavy plate girder 5.

[0016] The method for turning over a super heavy slab girder includes the turning device and the following steps:

[0017] Step 1, buckle the two rounds 1, 2 on the lower flange of the super heavy plate girder 5 member, and then use the bolts used in conjunction with the connecting plate 3 to fasten, the turning device is in contact with the web of the plate girder member The parts are clamped but not spot welded;

[0018] Step 2, setting hanging points A, B and C, D respectively on one end and the other side of the super heavy plate gir...

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Abstract

The invention relates to an overweight main girder turnover device, the turnover device is arranged at one end of a main girder and comprises a segment spliced by two semi-segments, the arc length of two semi-segments is different, and the semi-segments are connected by a connection board and bolts, a hole which couples with a cross section shape of the overweight main girder is provided at string; a turnover method for the overweight main girder is characterized in that the turnover device is fixed on the girder, and the turnover motion is completed through lifting of four traveling cranes. According to the invention, the load born by the main traveling crane can be mitigated, so that the lifting requirement of the traveling crane can be satisfied when a construction member is turned over (dynamic load operation), and the smooth turn-over of the construction member can be simultaneously ensured.

Description

technical field [0001] The invention relates to the construction of super heavy slab girders, in particular to turning over during the construction of super heavy slab girders. Background technique [0002] The following problems exist in the turning over of super-long, super-high and overweight plate girder H-shaped members: the lifting capacity of the crane cannot meet the requirements of turning over the overweight plate girder; Security risks. The conventional use of frame flipping will increase the weight, and due to the gap between the components and the frame, it will cause a large inertial impact, which will have an adverse effect on driving, and there are certain safety hazards. Contents of the invention [0003] The purpose of the present invention is to solve the above-mentioned defects, and provide a device and method for overturning an oversized slab girder. Book. The invention reduces the load borne by the main crane, ensures that the crane can meet its ow...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C1/22
Inventor 赵辉许立新程俊彪赵淑荣
Owner SHANGHAI BAOYE GRP CORP
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