CN102619174B - Large-span continuous steel truss girder arch pushing device - Google Patents
Large-span continuous steel truss girder arch pushing device Download PDFInfo
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- CN102619174B CN102619174B CN201210075175.XA CN201210075175A CN102619174B CN 102619174 B CN102619174 B CN 102619174B CN 201210075175 A CN201210075175 A CN 201210075175A CN 102619174 B CN102619174 B CN 102619174B
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Abstract
The invention discloses a large-span continuous steel truss girder arch pushing device, which comprises a slip device and a main pushing system device, wherein the slip device comprises a left longitudinal slipway girder, a right longitudinal slipway girder and a slide block; the inner edges of the left longitudinal slipway girder and the right longitudinal slipway girder are provided with a longitudinal full-length limiting stop block respectively; the inner side wall of the slide block is pressed against the longitudinal full-length limiting stop block; deviation correction devices are arranged on the outer side of the slide block and are divided into a tracking deviation correction device and a fixed deviation correction device; the end parts of a plurality of horizontal traction ropes which are led out of a horizontal continuous jacking jack are fixedly connected to a C-shaped counterforce seat; and a piston rod of the jacking jack is just opposite to the bottom of a lower chord node of a steel truss girder. According to the large-span continuous steel truss girder arch pushing device, in-place pushing of the steel truss girder and a flexible arch is realized by using the steel truss girder arch pushing device, so that the steel truss girder and the flexible arch are integrally stable during pushing construction, the linear shape is good, and the pushing quality is guaranteed.
Description
Technical field
The present invention relates to relate to bridge steel structure mounting technique field, be specially adapted to a kind of large-span continuous steel truss girder band arch thrustor in the construction of longspan steel truss girder band arch multiple spot successively incremeantal launching method method.
Background technology
In steel bridge construction, longspan steel truss girder often adopts the construction of multiple spot successively incremeantal launching method, is drawn steel truss girder and finally completed the installation of steel truss girder by jack.
Current girder steel pushing tow is trusses parallel chords incremental launching positioning; beam body position of centre of gravity is lower, and thrustor is all pushing slide and slide block to be set and without pushing tow stopping means, follow the tracks of deviation correcting device and the vertical protective device of the beam that rises and falls in good time according to steel truss girder position of centre of gravity.But; in some steel truss girder incremental launching constructions; steel truss girder is synchronizeed with sliding roadway arch and is carried out pushing tow; beam body position of centre of gravity is higher; if pushing tow system is without pushing tow stopping means, follow the tracks of deviation correcting device and the vertical protective device of the beam that rises and falls in good time; so both affected the monolithic stability of steel truss girder, and reduced efficiency of construction and also cannot meet simultaneously and be designed to bridge requirement.
Summary of the invention
The object of this invention is to provide a kind of large-span continuous steel truss girder band arch thrustor, utilize steel truss girder band arch thrustor to realize the incremental launching positioning of steel truss girder and sliding roadway arch, make steel truss girder and sliding roadway arch monolithic stability in incremental launching construction, linear good, guarantee pushing tow quality.
The technical solution used in the present invention is as follows:
A kind of large-span continuous steel truss girder band arch thrustor, comprise slide device, main pushing tow system and device, described slide device includes a left side, right side end slipway beam, slide block, a described left side, on end slipway beam inside edge, right side, be respectively equipped with longitudinal elongated positive stop, the inside wall overhead of slide block is on longitudinal elongated positive stop, the outside of slide block is provided with deviation correcting device, deviation correcting device is divided into tracking deviation correcting device, fixing deviation correcting device, fixing deviation correcting device includes bearing and level is fixed on the fixing correction oil cylinder on bearing, the piston masthead of fixing correction oil cylinder is pressed on the lateral wall of slide block, tracking deviation correcting device includes and is positioned over a left side, error correction track on the end slipway beam of right side, on error correction track, slide to be provided with and follow the tracks of correction bearing, follow the tracks of on correction bearing and be provided with and follow the tracks of correction oil cylinder, the piston masthead of following the tracks of correction oil cylinder is pressed on the lateral wall of slide block, described main pushing tow system and device includes the vertical top that the horizontal continuity jack that is fixedly installed in respectively left and right side end slipway beam front end is positioned at left and right side end slipway beam upper surface and lifts jack and be held on the C type counter-force seat on steel truss girder, horizontal continuity jack is centre-hole jack, the end of the many horizontally tracting ropes of drawing in horizontal continuity jack is fixedly attached to C type counter-force seat, and the piston rod that jack is lifted on described vertical top is right against steel truss girder lower-chord panel point bottom.
On described left and right side end slipway top surface of the beam, be equipped with longitudinal primary stainless steel slideway.
Described left and right side end slipway beam end is provided with the protection buttress that rises and falls, and the protection buttress that rises and falls is less than the height of slide block.
On described horizontal continuity jack, C type counter-force seat, be equipped with the clamp holder clamping horizontally tracting rope that quantity is identical.
Described horizontal continuity jack range is 170mm.
On described slide block bottom face, be fixed with polyfluortetraethylene plate, polyfluortetraethylene plate and the longitudinally coefficient of kinetic friction between primary stainless steel slideway are 0.06-0.1.
The lower end of described C type counter-force seat is fixedly connected with the base plate of steel truss girder lower chord, and the upper end of C type counter-force seat and the clamping of the top board of steel truss girder lower chord have stretch oil cylinder.
Compared with the prior art, advantage of the present invention is:
1, the present invention is directed to steel truss girder band vault and push away feature positive stop and deviation correcting device are set, make steel truss girder and sliding roadway arch in pushing tow process monolithic stability, become that bridge is linear to meet design requirement.
2, plan-position when the present invention arranges in good time tracking deviation correcting device and can be good at controlling and adjusting steel truss girder and sliding roadway arch pushing tow, guarantee that quality of finished bridge meets code requirement.
3, the present invention arranges the camber protective device that rises and falls and can be good at guaranteeing safety requirements when steel truss girder sliding roadway arch rises and falls beam.
4, several functions of the present invention is comprehensive, has saved to greatest extent cost, has simplified construction.
Accompanying drawing explanation
Fig. 1 is layout schematic diagram of the present invention.
Fig. 2 is that facade of the present invention is arranged schematic diagram.
Fig. 3 is positive stop of the present invention and follows the tracks of deviation correcting device in good time and arrange schematic diagram.
Fig. 4 is that the fixing correction of the present invention oil cylinder is arranged schematic diagram.
Fig. 5 be the present invention rise and fall protection buttress arrange schematic diagram.
Fig. 6 is that horizontal continuity jack of the present invention is arranged schematic diagram.
Fig. 7 be the present invention laterally rectify a deviation jack and longitudinally top lift jack and arrange schematic diagram.
The specific embodiment
Referring to accompanying drawing, a kind of large-span continuous steel truss girder band arch thrustor, comprise slide device, main pushing tow system and device, slide device includes a left side, right side end slipway beam 1, 2, slide block 3, left, right side end slipway beam 1, on 2 inside edges, be respectively equipped with longitudinal elongated positive stop 4, the inside wall overhead of slide block 3 is on longitudinal elongated positive stop 4, left, on the end slipway top surface of the beam of right side, be equipped with longitudinal primary stainless steel slideway, left, right side end slipway beam end is provided with the protection buttress 5 that rises and falls, the protection buttress 5 that rises and falls is less than the height of slide block 3, the outside of slide block is provided with deviation correcting device, deviation correcting device is divided into tracking deviation correcting device, fixing deviation correcting device, fixing deviation correcting device includes bearing 6 and level is fixed on the fixing correction oil cylinder 7 on bearing 6, the piston masthead of fixing correction oil cylinder 7 is pressed on the lateral wall of slide block 3, on slide block bottom face, be fixed with polyfluortetraethylene plate, polyfluortetraethylene plate and the longitudinally coefficient of kinetic friction between primary stainless steel slideway are 0.06-0.1, tracking deviation correcting device includes and is positioned over a left side, error correction track 11 on the end slipway beam of right side, on error correction track 11, slide to be provided with and follow the tracks of correction bearing 12, follow the tracks of on correction bearing 12 and be provided with and follow the tracks of correction oil cylinder 13, the piston masthead of following the tracks of correction oil cylinder is pressed on the lateral wall of slide block, main pushing tow system and device includes and is fixedly installed in respectively a left side, right side end slipway beam 1, the horizontal continuity jack 8 of 2 front ends is positioned at a left side, jack 9 is lifted on the vertical top of right side end slipway beam upper surface, and be held on the C type counter-force seat 10 on steel truss girder, horizontal continuity jack is centre-hole jack, horizontal continuity jack range is 170mm, the end of the many horizontally tracting ropes 14 of drawing in horizontal continuity jack is fixedly attached to C type counter-force seat 10, the lower end of C type counter-force seat is fixedly connected with the base plate of steel truss girder lower chord, the upper end of C type counter-force seat and the clamping of the top board of steel truss girder lower chord have stretch oil cylinder, horizontal continuity jack, on C type counter-force seat, be equipped with the clamp holder clamping horizontally tracting rope that quantity is identical, the piston rod that jack is lifted on described vertical top is right against steel truss girder lower-chord panel point bottom.
Claims (7)
1. a large-span continuous steel truss girder band arch thrustor, comprise slide device, main pushing tow system and device, it is characterized in that: described slide device includes a left side, right side end slipway beam, slide block, a described left side, on end slipway beam inside edge, right side, be respectively equipped with longitudinal elongated positive stop, the inside wall overhead of slide block is on longitudinal elongated positive stop, the outside of slide block is provided with deviation correcting device, deviation correcting device is divided into tracking deviation correcting device, fixing deviation correcting device, fixing deviation correcting device includes bearing and level is fixed on the fixing correction oil cylinder on bearing, the piston masthead of fixing correction oil cylinder is pressed on the lateral wall of slide block, tracking deviation correcting device includes and is positioned over a left side, error correction track on the end slipway beam of right side, on error correction track, slide to be provided with and follow the tracks of correction bearing, follow the tracks of on correction bearing and be provided with and follow the tracks of correction oil cylinder, the piston masthead of following the tracks of correction oil cylinder is pressed on the lateral wall of slide block, described main pushing tow system and device includes the horizontal continuity jack that is fixedly installed in respectively left and right side end slipway beam front end, the vertical top that is positioned at left and right side end slipway beam upper surface is lifted jack and is held on the C type counter-force seat on steel truss girder, horizontal continuity jack is centre-hole jack, the end of the many horizontally tracting ropes of drawing in horizontal continuity jack is fixedly attached to C type counter-force seat, and the piston rod that jack is lifted on described vertical top is right against steel truss girder lower-chord panel point bottom.
2. large-span continuous steel truss girder band arch thrustor according to claim 1, is characterized in that: on described left and right side end slipway top surface of the beam, be equipped with longitudinal primary stainless steel slideway.
3. large-span continuous steel truss girder band arch thrustor according to claim 1, is characterized in that: described left and right side end slipway beam end is provided with the protection buttress that rises and falls, and the protection buttress that rises and falls is less than the height of slide block.
4. large-span continuous steel truss girder band arch thrustor according to claim 1, is characterized in that: on described horizontal continuity jack, C type counter-force seat, be equipped with the clamp holder clamping horizontally tracting rope that quantity is identical.
5. large-span continuous steel truss girder band arch thrustor according to claim 1, is characterized in that: described horizontal continuity jack range is 170mm.
6. large-span continuous steel truss girder band arch thrustor according to claim 1, is characterized in that: on described slide block bottom face, be fixed with polyfluortetraethylene plate, polyfluortetraethylene plate and the longitudinally coefficient of kinetic friction between primary stainless steel slideway are 0.06-0.1.
7. large-span continuous steel truss girder band arch thrustor according to claim 1, it is characterized in that: the lower end of described C type counter-force seat is fixedly connected with the base plate of steel truss girder lower chord, the upper end of C type counter-force seat and the clamping of the top board of steel truss girder lower chord have stretch oil cylinder.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210075175.XA CN102619174B (en) | 2012-03-20 | 2012-03-20 | Large-span continuous steel truss girder arch pushing device |
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| CN201210075175.XA CN102619174B (en) | 2012-03-20 | 2012-03-20 | Large-span continuous steel truss girder arch pushing device |
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| CN102619174A CN102619174A (en) | 2012-08-01 |
| CN102619174B true CN102619174B (en) | 2014-05-28 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103205935B (en) * | 2013-03-11 | 2015-06-24 | 中交武汉港湾工程设计研究院有限公司 | Automatic pushing system for modular steel truss and construction technology for automatic pushing system |
| CN103397603B (en) * | 2013-04-28 | 2015-04-08 | 李勇 | Bridge magnetic levitation pushing system and two-stage cantilever manufacturing method |
| CN103911953B (en) * | 2014-04-14 | 2015-10-28 | 上海市机械施工集团有限公司 | The combination thrustor installed for overhead, bridge and not intermittently pushing method |
| CN105201224A (en) * | 2015-10-12 | 2015-12-30 | 中铁四局集团钢结构有限公司 | Incremental launching construction lateral deviation control device |
| CN105544401A (en) * | 2016-01-07 | 2016-05-04 | 中铁四局集团钢结构有限公司 | Overweight combined highway and railway bridge rigid suspending cable stiffened continuous steel trussed beam pushing device with stiffening string |
| CN105908637A (en) * | 2016-06-17 | 2016-08-31 | 贵州路桥集团有限公司 | Walking pushing system |
| CN107521936B (en) * | 2017-08-25 | 2024-02-09 | 中国化学工程第十三建设有限公司 | Conveying device and method for large heavy-duty metal components |
| CN110158472B (en) * | 2019-04-28 | 2021-12-21 | 中交第二航务工程局有限公司 | Modular multifunctional walking type pushing equipment |
| CN113818359B (en) * | 2021-09-24 | 2023-05-23 | 柳州欧维姆机械股份有限公司 | Walking type pushing construction method and application of large-sized component |
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| CN102619174A (en) | 2012-08-01 |
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Address after: 230022 No. 388 East Huanhu Road, Shushan District, Hefei City, Anhui Province Patentee after: Steel structure building Co., Ltd. of the four Bureau of China Railway Address before: 230022 No. 388 East Huanhu Road, Shushan District, Hefei City, Anhui Province Patentee before: Steel Structure Co., Ltd. of China Tiesiju Civil Engineering Group |