CN102493361B - Slippage launching method of girder on pushing and splicing platform in pushing construction - Google Patents
Slippage launching method of girder on pushing and splicing platform in pushing construction Download PDFInfo
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- CN102493361B CN102493361B CN201110384971.7A CN201110384971A CN102493361B CN 102493361 B CN102493361 B CN 102493361B CN 201110384971 A CN201110384971 A CN 201110384971A CN 102493361 B CN102493361 B CN 102493361B
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- slideway
- slip device
- frictional slip
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Abstract
The invention relates to a slippage pushing 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
Technical field
The present invention relates to the incremental launching method in bridge engineering, is the sliding pushing method of incremental launching method middle girder on pushing tow platform for lining specifically.That is: the sliding pushing method of incremental launching method middle girder on pushing tow platform for lining.
Background technology
At present, the slip mode for girder on pushing tow platform for lining in incremental launching method mainly adopts slide plate fixed point frictional slip method and the construction of slide block single point movement frictional slip method.The former needs a large amount of operating personnel these two kinds of methods, and it is asynchronous that the latter overlaps the normal slippage of slide block single point movement frictional slip device more, and playback operation inconvenience.
Summary of the invention
For the defect existing in prior art, the object of the present invention is to provide the sliding pushing method of incremental launching method middle girder on pushing tow platform for lining, object is to improve the slip mode of incremental launching method middle girder on pushing tow platform for lining, slide plate frictional slip mode and slide block single point movement frictional slip mode are used simultaneously, reduce operating personnel's quantity, only with a set of slide block single point movement frictional slip device, can realize slippage, there is no nonsynchronous problem, and it be easy and simple to handle to playback.
For reaching above object, the technical scheme that the present invention takes is:
The sliding pushing method of incremental launching method middle girder on pushing tow platform for lining, is characterized in that:
Column pushes up large distribution beam 3 for supporting short slideway 5 provided thereon,
Column pushes up little distribution beam 4 for supporting long slideway 6 provided thereon,
8 playback of slide block single point movement frictional slip device, to the rearmost end of long slideway 6, are used the interim pad of cushion block 9 on long slideway 6,
Then in the fulcrum plane segment lifting of girder 10 being formed to the end face of slide block single point movement frictional slip device 8 and cushion block 9, and make the bottom surface close contact of slide plate fixed point frictional slip device 7, slide block single point movement frictional slip device 8, the end face of cushion block 9 and the sections of girder 10
The sections of girder 10 and the assembled girder sections completing are above assembled into one;
On the basis of technique scheme, slide plate fixed point frictional slip device 7 comprises: the upper layer of material contacting with the sections of girder 10 is steel plate, the lower floor contacting with short slideway 5 chooses the base plate that friction factor is less, static and dynamic friction coefficient difference is little, and steel plate and base plate are provided with some upper and lower stacked composite panels.
On the basis of technique scheme, described 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 short slideway from short slideway 5 rear ends, girder is slippage forward under pushing tow dynamic action, because girder and steel plate friction coefficient are greater than friction factor between base plate and slideway, girder will drive 7 reaches simultaneously of slide plate fixed point frictional slip device, a piece slide plate fixed point frictional slip device 7 constantly falls down from short slideway 5 front ends, and operating personnel fill out back it to go from rear end plug again, and so forth.
The sliding pushing method of incremental launching method middle girder of the present invention on pushing tow platform for lining, slide plate frictional slip mode and slide block single point movement frictional slip mode are used simultaneously, reduce operating personnel's quantity, only with a set of slide block single point movement frictional slip device, can realize slippage, there is no nonsynchronous problem, and it is easy and simple to handle to playback.
The sliding pushing method of incremental launching method middle girder of the present invention on pushing tow platform for lining, its beneficial effect is:
(1) with respect to pure slide plate fixed point frictional slip mode, personnel reduce.
(2) with respect to pure slide block single point movement frictional slip mode, only there is a set of slide block single point movement frictional slip device, there is no nonsynchronous problem, and during playback, girder automatic trip is from slide block single point movement frictional slip device, slide block single point movement frictional slip device is directly towed back to original position along slideway, playback easy and simple to handle.
Accompanying drawing explanation
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 described in further detail.
The sliding pushing method of incremental launching method middle girder of the present invention on pushing tow platform for lining, slide plate frictional slip mode and slide block single point movement frictional slip mode are used simultaneously, and slide block single point movement frictional slip device is only used a set of, during playback, girder automatic trip, from slide block single point movement frictional slip device, is towed back to original position by slide block single point movement frictional slip device along slideway and is completed playback operation.As shown in Fig. 1～5, its concrete steps are as follows:
As shown in Figures 1 to 3, described pushing tow platform for lining comprises:
Left and right sidesing supporting frame body 20, support frame as described above body 20 comprises: the spaced support post in front and back, between the adjacent support post in front and back, by least three layers of column bracing 2, link together from top to bottom,
Described support post comprises: two steel pipe posts 1 that left and right be arranged in parallel side by side, between two steel pipe posts 1, by compound steel tube column bracing 22 at least, link together from top to bottom, the top of two steel pipe posts 1 is provided with that column pushes up large distribution beam 3 or column pushes up little distribution beam 4
Column pushes up large distribution beam 3 for supporting short slideway 5 provided thereon,
Column pushes up little distribution beam 4 for supporting long slideway 6 provided thereon,
8 playback of slide block single point movement frictional slip device, to the rearmost end of long slideway 6, are used the interim pad of cushion block 9 on long slideway 6,
Then in the fulcrum plane segment lifting of girder 10 being formed to the end face of slide block single point movement frictional slip device 8 and cushion block 9, and make the bottom surface close contact of slide plate fixed point frictional slip device 7, slide block single point movement frictional slip device 8, the end face of cushion block 9 and the sections of girder 10
The sections of girder 10 and (on short slideway 5) assembled girder sections completing are above assembled into one; Described " the assembled girder sections completing above " belongs to a part for girder 10, and each sections is distinguished constantly assembled rear pushing tow on pushing tow platform for lining successively, then the sections of assembled next girder 10, then pushing tow,
On the basis of technique scheme, slide plate fixed point frictional slip device 7 comprises:
The upper layer of material contacting with the sections of girder 10 is steel plate, and the lower floor contacting with short slideway 5 chooses the base plate that friction factor is less, static and dynamic friction coefficient difference is little, and steel plate and base plate are provided with some upper and lower stacked composite panels, every be generally two-layer compound,
Described base plate can be MGE(engineering plastic alloy) material such as plate, tetrafluoro plate, MGE board plane size is 400 * 400mm, the about 40mm of thickness approximately.
On the basis of technique scheme, slide plate fixed point frictional slip device 7 is filled between girder and short slideway from short slideway 5 rear ends, girder is slippage forward under pushing tow dynamic action, because girder and steel plate friction coefficient are greater than friction factor between base plate and slideway, girder will drive 7 reaches simultaneously of slide plate fixed point frictional slip device, a piece slide plate fixed point frictional slip device 7 constantly falls down from short slideway 5 front ends, and operating personnel fill out back it to go from rear end plug again, and so forth.
Slide block single point movement frictional slip device 8 can be the steel plate on slide plate fixed point frictional slip device 7 upper stratas to be changed into the steel cushion block of proper height, and slippage principle is the same.
The content not being described in detail in this manual belongs to the known prior art of professional and technical personnel in the field.
Claims (4)
1. the sliding pushing method of incremental launching method middle girder on pushing tow platform for lining, is characterized in that, comprises the following steps:
Step 1, builds pushing tow platform for lining: described pushing tow platform for lining comprises left and right sidesing supporting frame body (20), and left and right sidesing supporting frame body (20) is provided with that column pushes up large distribution beam (3) and column pushes up little distribution beam (4),
Column pushes up large distribution beam (3) for supporting short slideway (5) provided thereon,
Column pushes up little distribution beam (4) for supporting long slideway (6) provided thereon,
Long slideway (6) is located at short slideway (5) rear,
Step 2 arranges slide plate fixed point frictional slip device (7) on short slideway (5), and a set of slide block single point movement frictional slip device (8) is set on long slideway (6),
Step 3, the segmented slippage of girder (10), installation:
Slide block single point movement frictional slip device (8) playback is to the rearmost end of long slideway (6), upper with the interim pad of cushion block (9) at long slideway (6),
Then in the fulcrum plane segment lifting of girder (10) being formed to the end face of slide block single point movement frictional slip device (8) and cushion block (9), and make the bottom surface close contact of the slide plate fixed point end face of frictional slip device (7), slide block single point movement frictional slip device (8) and cushion block (9) and the sections of girder (10)
The sections of girder (10) and the assembled girder sections completing are above assembled into one;
Step 4, remove pad (9), slide block single point movement frictional slip device (8) and slide plate fixed point frictional slip device (7) work, apply pushing tow power to girder (10), make it under pushing tow dynamic action, from long slideway (6) to short slideway (5) direction, move forward;
Step 5, until the sections pushing tow of girder (10) during to pushing tow platform for lining front end, the sections of girder (10) can be automatically and slide block single point movement frictional slip device (8) disengaging;
Step 6, repeating step 3,4,5 until the sections of all girders (10) all assembled complete and slippage put in place.
2. the sliding pushing method of incremental launching method middle girder as claimed in claim 1 on pushing tow platform for lining, it is characterized in that, slide plate fixed point frictional slip device (7) comprising: the upper layer of material contacting with the sections of girder (10) is steel plate, the lower floor contacting with short slideway (5) chooses the base plate that friction factor is less, static and dynamic friction coefficient difference is little, and steel plate and base plate are provided with some upper and lower stacked composite panels.
3. the sliding pushing method of incremental launching method middle girder as claimed in claim 2 on pushing tow platform for lining, is characterized in that: described base plate is MGE plate or tetrafluoro plate.
4. the sliding pushing method of incremental launching method middle girder as claimed in claim 2 on pushing tow platform for lining, it is characterized in that: slide plate fixed point frictional slip device (7) is filled between girder and short slideway from short slideway (5) rear end, girder is slippage forward under pushing tow dynamic action, because girder and steel plate friction coefficient are greater than friction factor between base plate and slideway, girder will drive slide plate fixed point frictional slip device (7) to move forward simultaneously, 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 again from rear end plug, and so forth.
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| CN201110384971.7A CN102493361B (en) | 2011-11-28 | 2011-11-28 | Slippage launching method of girder on pushing and splicing platform in pushing construction |
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| CN201110384971.7A CN102493361B (en) | 2011-11-28 | 2011-11-28 | Slippage launching method of girder on pushing and splicing platform in pushing construction |
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| CN102493361A CN102493361A (en) | 2012-06-13 |
| CN102493361B true CN102493361B (en) | 2014-03-19 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103938551B (en) * | 2014-05-15 | 2016-03-02 | 贵州新联***工程集团有限公司 | A kind of apparatus for assembling of continuous beam pier support for construction |
| CN105625194B (en) * | 2016-03-03 | 2017-05-17 | 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 |
| 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 Free format text: FORMER OWNER: NO.1 ENGINEERING CO., LTD., ZHONGTIE BRIDGE BUREAU GROUP GROUP CO., LTD., ZHONGTIE DAQIAO BUREAU Effective date: 20150226 Owner name: GROUP CO., LTD., ZHONGTIE DAQIAO BUREAU Free format text: FORMER OWNER: CHINA ZHONGTIE MAJOR BRIDGE ENGINEERING CO., LTD. Effective date: 20150226 |
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Effective date of registration: 20150226 Address after: No. 38, Hanyang Avenue, Hanyang District, Wuhan, Hubei Patentee after: Group Co., Ltd., Zhongtie Daqiao Bureau Patentee after: No.1 Engineering Co., Ltd., Zhongtie Bridge Bureau Group Address before: 430074 Hubei province Wuhan Dongxin East Lake New Technology Development Zone Road SBI Venture Street No. 6 Building 12 layer Patentee before: China Zhongtie Major Bridge Engineering Co., Ltd. Patentee before: No.1 Engineering Co., Ltd., Zhongtie Bridge Bureau Group Patentee before: Group Co., Ltd., Zhongtie Daqiao Bureau |