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Formwork removal trolley and formwork removal method for box girder inner formwork

A technology of formwork trolley and box girder, which is applied in the field of box girder inner formwork removal trolley, which can solve the problems of disassembly danger, increased difficulty of formwork disassembly, and great difficulty of formwork disassembly

Active Publication Date: 2020-03-13
CCCC FOURTH HARBOR ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the block-assembled inner formwork is used to complete the box girder concrete pouring process at one time, the inner formwork needs to be disassembled after the box girder concrete is poured. In the block-assembled inner formwork, it is more difficult to disassemble the upper sides and the top formwork. Large, and the demolition is more dangerous, especially with the increase of the span of the bridge, the cross-sectional size of the box girder is also increasing. At present, the height of the internal space of the large box girder reaches 2-4m, and it is difficult to disassemble the formwork on both sides of the upper part and on the top. It is also further enlarged, and there is no special demoulding tool to disassemble it

Method used

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  • Formwork removal trolley and formwork removal method for box girder inner formwork
  • Formwork removal trolley and formwork removal method for box girder inner formwork
  • Formwork removal trolley and formwork removal method for box girder inner formwork

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Such as figure 1 As shown, the inner formwork of a large box girder includes several inner formwork segments, and several inner formwork sections are sequentially spliced ​​and fixed along the length direction of the box girder to form a complete inner formwork. The length of a single inner formwork segment is designed to be 2- 6m.

[0047] The inner mold segment includes a chassis 10 , a lower chamfering formwork assembly 20 , an upper chamfering formwork assembly 30 , a top formwork assembly 40 , and an inner support assembly 50 .

[0048]The chassis 10 is located at the bottom of the inner cavity of the box girder, and the lower chamfering formwork assembly 20 is located at the two chamfers of the lower part of the inner cavity of the box girder and the middle and lower parts of the walls on both sides, that is, the lower chamfering of the inner mold of the box girder and the middle and lower formwork of the side , the upper chamfer formwork assembly 30 is located a...

Embodiment 2

[0073] Such as Figure 8As shown, a box girder internal formwork removal trolley, the rest of the technical features are the same as the first embodiment, the difference is that in order to prevent the lifting hydraulic jack 31 from losing hydraulic pressure and descending during the form removal process, auxiliary legs can be added System 6, the auxiliary outrigger system 6 is set on both sides of the vehicle frame 1, and is used to assist the lifting outrigger system 3 to support the demolition trolley. The auxiliary outrigger system 6 includes four sets symmetrically arranged along the length direction of the demoulding trolley The auxiliary outrigger device, the auxiliary outrigger device includes an internally threaded steel pipe 61, a supporting steel plate 62, a wire-rolled steel rod 63 and a leg pad 64, a hole in the middle of the supporting steel plate 62, a wire-rolled hole wall, and a wire-rolled steel rod The bottom of 63 is connected with the outrigger block 64, a...

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PUM

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Abstract

The invention discloses a formwork removal trolley and formwork removal method for a box girder inner formwork. The formwork removal trolley comprises a frame, a travelling system, a jacking support leg system, a horizontal telescopic boom system and a vertical telescopic boom system; the travelling system is arranged at the bottom part of the frame, and is used for making the formwork removal trolley travel; the jacking support leg system is arranged at the bottom part of the frame, and is used for making the formwork removal trolley do linear motion in the vertical direction and performs supporting; the horizontal telescopic boom system is arranged at the top part of the frame; the horizontal telescopic boom system can do concertina motion in the horizontal direction; the vertical telescopic boom system is arranged at the top part of the frame; and the vertical telescopic boom system can do concertina motion in the vertical direction. The formwork removal trolley for the box girder inner formwork specially removes a top formwork assembly and upper chamfered formwork assemblies of the box girder inner formwork, so that the formwork removal speed of the inner formwork and safety during formwork removal are improved.

Description

technical field [0001] The invention relates to the technical field of formwork structures for buildings, in particular to a box girder inner formwork removal trolley and a form removal method thereof. Background technique [0002] Box girder is a kind of beam in bridge engineering. It is hollow inside and has flanges on both sides of the upper part, which is similar to a box, hence the name. When the block-assembled inner formwork is used to complete the box girder concrete pouring process at one time, the inner formwork needs to be disassembled after the box girder concrete is poured. In the block-assembled inner formwork, it is more difficult to disassemble the upper sides and the top formwork. Large, and the demolition is more dangerous, especially with the increase of the span of the bridge, the cross-sectional size of the box girder is also increasing. At present, the height of the internal space of the large box girder reaches 2-4m, and it is difficult to disassemble ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B7/00B28B17/00E04G19/00
CPCB28B7/00B28B17/00E04G19/00
Inventor 李洪斌陈猛张克浩李汉渤石良茂汤明胡恩纯卢普伟龚志宏
Owner CCCC FOURTH HARBOR ENG CO LTD