CN102493361A - Slippage mode of girder on pushing and splicing platform in pushing construction - Google Patents

Slippage mode of girder on pushing and splicing platform in pushing construction Download PDF

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Publication number
CN102493361A
CN102493361A CN2011103849717A CN201110384971A CN102493361A CN 102493361 A CN102493361 A CN 102493361A CN 2011103849717 A CN2011103849717 A CN 2011103849717A CN 201110384971 A CN201110384971 A CN 201110384971A CN 102493361 A CN102493361 A CN 102493361A
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China
Prior art keywords
girder
slideway
pushing tow
slip device
point
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CN2011103849717A
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Chinese (zh)
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CN102493361B (en
Inventor
李艳哲
秦顺全
夏学军
宋杰
李二伟
王雪松
李金恒
冯文园
黄泽林
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No.1 Engineering Co., Ltd., Zhongtie Bridge Bureau Group
China Railway Major Bridge Engineering Group Co Ltd MBEC
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No1 Engineering Co Ltd Zhongtie Bridge Bureau Group
China Railway Major Bridge Engineering Co Ltd
China Railway Major Bridge Engineering Group Co Ltd MBEC
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Priority to CN201110384971.7A priority Critical patent/CN102493361B/en
Publication of CN102493361A publication Critical patent/CN102493361A/en
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Abstract

The invention relates to a slippage mode of a girder on a pushing and splicing platform in the pushing construction. The top surface of a pushing and splicing platform is respectively provided with a long slideway and a short slideway, wherein the long slideway and the short slideway are respectively provided with a sliding block single-point moving, rubbing and slipping device and a sliding block fixed-point rubbing and slipping device; the girder is positioned on the sliding block single-point moving, rubbing and slipping device and the sliding block fixed-point rubbing and slipping device; and under the action of pushing power, the girder can move forwards on the long slideway and the short slideway. In the scheme, a sliding block single-point moving, rubbing and slipping method and a sliding block fixed-point rubbing and slipping method are simultaneously utilized for the pushing operation according to the structural characteristics and the stressed characteristics of the pushing and splicing platform. Because the sliding block single-point moving, rubbing and slipping mode and a sliding block fixed-point rubbing and slipping mode are simultaneously utilized in the slippage mode, the amount of operation personnel is reduced, and slippage can be realized only by one set of sliding block single-point moving, rubbing and slipping device to avoid the problem of desynchrony, and the homing operation is simple.

Description

The slip mode of incremental launching method middle girder on the pushing tow platform for lining
Technical field
The present invention relates to the incremental launching method in the bridge engineering, is the slip mode of incremental launching method middle girder on the pushing tow platform for lining specifically.That is: the sliding pushing method of incremental launching method middle girder on the pushing tow platform for lining.
Background technology
At present, the slip mode for girder on the pushing tow platform for lining in the incremental launching method mainly adopts slide plate fixed point frictional slip method and slide block single-point to move the construction of frictional slip method.These two kinds of methods the former need a large amount of operating personnel, the latter to overlap the slide block single-point more to move the normal slippage of frictional slip device asynchronous, and playback operation inconvenience.
Summary of the invention
To the defective that exists in the prior art; The object of the present invention is to provide the slip mode of incremental launching method middle girder on the pushing tow platform for lining, purpose is to improve the slip mode of incremental launching method middle girder on the pushing tow platform for lining, slide plate frictional slip mode and slide block single-point is moved the frictional slip mode use simultaneously; Reduce operating personnel's quantity; Only move the frictional slip device and can realize slippage, do not have nonsynchronous problem, and it is easy and simple to handle to playback with a cover slide block single-point.
For reaching above purpose, the technical scheme that the present invention takes is:
The slip mode of incremental launching method middle girder on the pushing tow platform for lining is characterized in that:
Step 1, build the pushing tow platform for lining: said pushing tow platform for lining comprises left and right sidesing supporting frame body 20, left and right sidesing supporting frame body 20 is provided with column and pushes up big distribution beam 3 and push up little distribution beam 4 with column,
Column pushes up big distribution beam 3 and is used to support short slideway 5 provided thereon,
Column pushes up little distribution beam 4 and is used to support long slideway 6 provided thereon,
Long slideway 6 is located at short slideway 5 rears,
Step 2 is provided with slide plate fixed point frictional slip device 7 on short slideway 5, and a cover slide block single-point is set on long slideway 6 moves frictional slip device 8,
Step 3, girder 10 segmented slippages, installation:
The slide block single-point moves the playback rearmost end of long slideway 6 of frictional slip device 8, on long slideway 6 with cushion block 9 interim pads,
Then the segment lifting of girder 10 is moved on the fulcrum plane that the end face of frictional slip device 8 and cushion block 9 forms to the slide block single-point; And the end face that makes slide plate fixed point frictional slip device 7, slide block single-point move frictional slip device 8, cushion block 9 closely contacts with the bottom surface of the sections of girder 10
The girder sections that the sections of girder 10 and front assembly unit are accomplished is assembled into one;
Step 4, dismounting pad 9, slide block single-point move frictional slip device 8,7 work of slide plate fixed point frictional slip device, apply pushing tow power for girder 10, make it under the pushing tow dynamic action, move forward to short slideway 5 directions from long slideway 6;
Step 5, the sections pushing tow of treating girder 10 are during to pushing tow platform for lining front end, and the sections of girder 10 can move 8 disengagings of frictional slip device with the slide block single-point automatically;
Step 6, repeating step 3,4,5 until the sections of all girders 10 all assembly unit finish and slippage puts in place.
On the basis of technique scheme; Slide plate fixed point frictional slip device 7 comprises: the upper layer of material that contacts with the sections of girder 10 is a steel plate; The lower floor that contacts with short slideway 5 chooses the base plate that friction factor is less, the static and dynamic friction coefficient difference is little, and steel plate and base plate are provided with some stacked composite panels up and down.
On the basis of technique scheme, said base plate is MGE plate or tetrafluoro plate.
On the basis of technique scheme; Slide plate fixed point frictional slip device 7 is filled between girder and the short slideway from short slideway 5 rear ends, and girder is slippage forward under the pushing tow dynamic action, because girder and steel plate friction factor are greater than friction factor between base plate and the slideway; Girder will drive 7 reaches simultaneously of slide plate fixed point frictional slip device; Piece slide plate fixed point frictional slip device 7 constantly falls down from short slideway 5 front ends, operating personnel again it from the back end plug fill out back and go, so back and forth.
The slip mode of incremental launching method middle girder of the present invention on the pushing tow platform for lining; Slide plate frictional slip mode and slide block single-point are moved the frictional slip mode to be used simultaneously; Reduce operating personnel's quantity; Only move the frictional slip device and can realize slippage, do not have nonsynchronous problem, and it is easy and simple to handle to playback with a cover slide block single-point.
The slip mode of incremental launching method middle girder of the present invention on the pushing tow platform for lining, its beneficial effect is:
(1) with respect to pure slide plate fixed point frictional slip mode, personnel reduce.
(2) move the frictional slip mode with respect to pure slide block single-point; Only there is a cover slide block single-point to move the frictional slip device; There is not nonsynchronous problem, and when playback, girder breaks away from the slide block single-point automatically and moves the frictional slip device; The slide block single-point is moved the frictional slip device directly tow back to original position along slideway and get final product, it is easy and simple to handle to playback.
Description of drawings
The present invention has following accompanying drawing:
Fig. 1 pushing tow platform for lining elevation,
Fig. 2 pushing tow platform for lining side view,
Fig. 3 pushing tow platform for lining plan view,
Fig. 4 pushing tow platform for lining section assembling state elevation,
Fig. 5 pushing tow platform for lining pushing tow walking state elevation,
Fig. 6 pushing tow platform for lining pushing tow traveling state elevation that puts in place.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is done further explain.
The slip mode of incremental launching method middle girder of the present invention on the pushing tow platform for lining; Slide plate frictional slip mode and slide block single-point are moved the frictional slip mode to be used simultaneously; And the slide block single-point moves the frictional slip device and only uses a cover; During playback, girder breaks away from the slide block single-point automatically and moves the frictional slip device, the slide block single-point is moved the frictional slip device tow back to original position along slideway and promptly accomplish playback operation.Shown in Fig. 1～5, its concrete steps are following:
Step 1, build the pushing tow platform for lining:
Shown in Fig. 1～3, said pushing tow platform for lining comprises:
Left and right sidesing supporting frame body 20, support frame as described above body 20 comprises: the support post that front and back are provided with at interval, link together through at least three layers of column bracing 2 from top to bottom between the adjacent support post in front and back,
Said support post comprises: about two steel pipe posts 1 laterally arranging side by side; Link together through compound steel tube column bracing 22 at least from top to bottom between two steel pipe posts 1; The top of two steel pipe posts 1 is provided with that column pushes up big distribution beam 3 or column pushes up little distribution beam 4
Column pushes up big distribution beam 3 and is used to support short slideway 5 provided thereon,
Column pushes up little distribution beam 4 and is used to support long slideway 6 provided thereon,
Long slideway 6 is located at short slideway 5 rears,
Step 2 is provided with slide plate fixed point frictional slip device 7 on short slideway 5, and a cover slide block single-point is set on long slideway 6 moves frictional slip device 8,
Step 3, girder 10 segmented slippages, installation:
The slide block single-point moves the playback rearmost end of long slideway 6 of frictional slip device 8, on long slideway 6 with cushion block 9 interim pads,
Then the segment lifting of girder 10 is moved on the fulcrum plane that the end face of frictional slip device 8 and cushion block 9 forms to the slide block single-point; And the end face that makes slide plate fixed point frictional slip device 7, slide block single-point move frictional slip device 8, cushion block 9 closely contacts with the bottom surface of the sections of girder 10
The sections of girder 10 and the girder sections of front (on the short slideway 5) assembly unit completion are assembled into one; Said " front is the girder sections accomplished of assembly unit " belongs to the part of girder 10, and each sections is pushing tow after assembly unit on the pushing tow platform for lining constantly respectively successively, the sections of next girder 10 in the assembly unit again, and pushing tow again,
Step 4, dismounting pad 9, slide block single-point move frictional slip device 8,7 work of slide plate fixed point frictional slip device, apply pushing tow power for girder 10, make it under the pushing tow dynamic action, move forward to short slideway 5 directions from long slideway 6;
Step 5, the sections pushing tow of treating girder 10 are during to pushing tow platform for lining front end (short slideway 5 one sides are front end), and the sections of girder 10 can move 8 disengagings of frictional slip device with the slide block single-point automatically; This is the structure feature decision; The sections pushing tow of girder 10 moves ahead, and the power that the sections of the girder 10 that pushing tow is gone out falls within front end (on the slide plate fixed point frictional slip device 7) constantly increases, and the power that falls within rear end (the slide block single-point moves on the frictional slip device 8) constantly reduces; (referring to Fig. 6); Along with the stressed minimizing in rear, the tail end perk of the sections of girder 10, automatic and slide block single-point moves frictional slip device 8 and breaks away from;
Step 6, repeating step 3,4,5 until the sections of all girders 10 all assembly unit finish and slippage puts in place.
On the basis of technique scheme, slide plate fixed point frictional slip device 7 comprises:
The upper layer of material that contacts with the sections of girder 10 is a steel plate, and the lower floor that contact with short slideway 5 chooses the base plate that friction factor is less, the static and dynamic friction coefficient difference is little, stacked composite panels about steel plate and base plate are provided with some, every be generally two-layer compound,
Said base plate can be materials such as MGE (a kind of engineering plastic alloy) plate, tetrafluoro plate, the about 400 * 400mm of MGE board plane size, the about 40mm of thickness.
On the basis of technique scheme; Slide plate fixed point frictional slip device 7 is filled between girder and the short slideway from short slideway 5 rear ends, and girder is slippage forward under the pushing tow dynamic action, because girder and steel plate friction factor are greater than friction factor between base plate and the slideway; Girder will drive 7 reaches simultaneously of slide plate fixed point frictional slip device; Piece slide plate fixed point frictional slip device 7 constantly falls down from short slideway 5 front ends, operating personnel again it from the back end plug fill out back and go, so back and forth.
It can be the steel cushion block that the steel plate on slide plate fixed point frictional slip device 7 upper stratas is changed into proper height that the slide block single-point moves frictional slip device 8, and the slippage principle is the same.
The content of not doing in this manual to describe in detail belongs to this area professional and technical personnel's known prior art.

Claims (4)

1. the slip mode of incremental launching method middle girder on the pushing tow platform for lining is characterized in that, may further comprise the steps:
Step 1, build the pushing tow platform for lining: said pushing tow platform for lining comprises left and right sidesing supporting frame body (20), left and right sidesing supporting frame body (20) is provided with that column pushes up big distribution beam (3) and column pushes up little distribution beam (4),
Column pushes up big distribution beam (3) and is used to support short slideway (5) provided thereon,
Column pushes up little distribution beam (4) and is used to support long slideway (6) provided thereon,
Long slideway (6) is located at short slideway (5) rear,
Step 2 is provided with slide plate fixed point frictional slip device (7) on short slideway (5), and a cover slide block single-point is set on long slideway (6) moves frictional slip device (8),
Step 3, the segmented slippage of girder (10), installation:
The slide block single-point moves the playback rearmost end of long slideway (6) of frictional slip device (8), goes up with cushion block (9) pad temporarily at long slideway (6),
Then the segment lifting of girder (10) is moved on the fulcrum plane that the end face of frictional slip device (8) and cushion block (9) forms to the slide block single-point; And the end face that makes slide plate fixed point frictional slip device (7), slide block single-point move frictional slip device (8), cushion block (9) closely contacts with the bottom surface of the sections of girder (10)
The girder sections that the sections of girder (10) and front assembly unit are accomplished is assembled into one;
Step 4; Remove pad (9), the slide block single-point moves frictional slip device (8), slide plate fixed point frictional slip device (7) work, applies pushing tow power for girder (10); Make it under the pushing tow dynamic action, move forward to short slideway (5) direction from long slideway (6);
Step 5, the sections pushing tow of treating girder (10) are during to pushing tow platform for lining front end, and the sections of girder (10) can move frictional slip device (8) disengaging with the slide block single-point automatically;
Step 6, repeating step 3,4,5 until the sections of all girders (10) all assembly unit finish and slippage puts in place.
2. the slip mode of incremental launching method middle girder as claimed in claim 1 on the pushing tow platform for lining; It is characterized in that; Slide plate fixed point frictional slip device (7) comprising: the upper layer of material that contacts with the sections of girder (10) is a steel plate; The lower floor that contacts with short slideway (5) chooses the base plate that friction factor is less, the static and dynamic friction coefficient difference is little, and steel plate and base plate are provided with some stacked composite panels up and down.
3. the slip mode of incremental launching method middle girder as claimed in claim 2 on the pushing tow platform for lining is characterized in that: said base plate is MGE plate or tetrafluoro plate.
4. the slip mode of incremental launching method middle girder as claimed in claim 2 on the pushing tow platform for lining; It is characterized in that: slide plate fixed point frictional slip device (7) is filled between girder and the short slideway from short slideway (5) rear end; Girder is slippage forward under the pushing tow dynamic action; Because girder and steel plate friction factor are greater than friction factor between base plate and the slideway, girder will drive slide plate fixed point frictional slip device (7) and move forward simultaneously, and a piece slide plate fixed point frictional slip device (7) constantly falls down from short slideway (5) front end; Operating personnel fill out back it and go from back end plug, so back and forth.
CN201110384971.7A 2011-11-28 2011-11-28 Slippage launching method of girder on pushing and splicing platform in pushing construction Active CN102493361B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103938551A (en) * 2014-05-15 2014-07-23 贵州新联爆破工程集团有限公司 Assembling device of continuous beam pier construction support
CN105625194A (en) * 2016-03-03 2016-06-01 中铁第六勘察设计院集团有限公司 Transverse movement in-position construction method of cable-stayed bridge
CN109577211A (en) * 2019-01-21 2019-04-05 北京城建道桥建设集团有限公司 A kind of reverse installation system of the large size support confined space and construction method
CN112878706A (en) * 2021-02-08 2021-06-01 中国二十二冶集团有限公司 Large-scale component rolling sliding support

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103938551A (en) * 2014-05-15 2014-07-23 贵州新联爆破工程集团有限公司 Assembling device of continuous beam pier construction support
CN103938551B (en) * 2014-05-15 2016-03-02 贵州新联爆破工程集团有限公司 A kind of apparatus for assembling of continuous beam pier support for construction
CN105625194A (en) * 2016-03-03 2016-06-01 中铁第六勘察设计院集团有限公司 Transverse movement in-position construction method of cable-stayed bridge
CN109577211A (en) * 2019-01-21 2019-04-05 北京城建道桥建设集团有限公司 A kind of reverse installation system of the large size support confined space and construction method
CN109577211B (en) * 2019-01-21 2023-10-31 北京城建道桥建设集团有限公司 Large support limited space reverse installation system and construction method
CN112878706A (en) * 2021-02-08 2021-06-01 中国二十二冶集团有限公司 Large-scale component rolling sliding support

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Owner name: NO.1 ENGINEERING CO., LTD., ZHONGTIE BRIDGE BUREAU

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