CN205276140U - Continuous steel longeron multi -point synchronization automatic cycle of large -span piston shoes top in turn pushes away system - Google Patents
Continuous steel longeron multi -point synchronization automatic cycle of large -span piston shoes top in turn pushes away system Download PDFInfo
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- CN205276140U CN205276140U CN201520939437.1U CN201520939437U CN205276140U CN 205276140 U CN205276140 U CN 205276140U CN 201520939437 U CN201520939437 U CN 201520939437U CN 205276140 U CN205276140 U CN 205276140U
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Abstract
The utility model provides a continuous steel longeron multi -point synchronization automatic cycle of large -span in turn top pushes away the piston shoes top and pushes away the system, includes: steel longeron assembly platform, steel nose girder, interim mound, slide and control system, the slide includes main slide and vice slide, is provided with on the main slide to push away piston shoes in the vertical high top of adjustment, and the reaction frame setting pushes away the jack and installs on the reaction frame on main slide front end, continuous top, the top pushes away the piston shoes both sides respectively has yi taoding to push away the horizontal jack of piston shoes, and the top pushes away jack, top and pushes away the horizontal jack of piston shoes and top and push away the vertical jack of piston shoes and form the top and push away the hydraulic jack system of sliding in succession, and every set of jack all is provided with pressure and displacement sensor for detect the pressure of each jack, the displacement of pneumatic cylinder and the position that the top pushed away piston shoes, main control computer is fed back to liquid electronic control system's on each slide data centralization, sends control command to liquid electronic control system by the computer, and it is synchronous to realize that the top pushes away the construction to in -process automatic compensation slide elevation can be pushed away on the top and the horizontal off normal of steel longeron is corrected.
Description
Technical field
The utility model relates to a kind of bridge construction equipment, particularly a kind of large-span continuous steel truss girder top pushing system.
Background technology
Steel trusses is a kind of comparatively outstanding bridge structure in traffic capital construction, is specially adapted to railroad bridge, or road-cum-rail bridge; For the large span valley bridge that construction environment, especially valley region, gully, Over-size transport are very inconvenient, Steel truss structure is one of essential structure of industry; In order to aspects such as safety, quality, economy, the construction of the steel purlin structural bridge such as big for weight, span is big, construction environment is complicated must adapt to requirements of the times, employ new technology, novel process and optimization prior art are this type of bridge construction service, it is achieved engineering safety, quality, economy and constructing aims.
At present, longspan steel truss girder erection adopts pull-alongs incremental launching construction to obtain the accreditation of industry, but existing still have following shortcoming for steel trusses pull-alongs incremental launching construction method:
1, owing to steel trusses tonnage is big, point of suppon counter-force is big, slide block height is non-adjustable, " being fed into " difficulty big, local stress increases, and slide block damages becomes common phenomenon, and slide block height non-adjustable fails " dynamically, instant " adjustment and highly compensates each pier, the elevation construction error of platform and the uneven error of sedimentation, make top push through journey and it is unfavorable for that control top pushes away friction resistance, add security risk, steel trusses erection difficult quality guarantee;
2, planner is in order to safety, has a mind to be exaggerated safety margin during structure design, has influence on the economy of construction;
3, the tie point that pull-alongs top pushes away inboardend and steel trusses adopt weld temporarily, bolt connect all to body junction structure construction damage, although having employing " U " type card as counter-force point, but structure is big, structure weight, need hoisting machinery coordinative construction, construction is very inconvenient, level of automation is not high, implements very difficult;
4, existing longspan steel truss girder pull-alongs incremental launching construction top pushes away, axis trimming is respective independent system, and therefore, push through journey needs to suspend incremental launching construction during adjustment axis on top, thus limits continuity and the controllability of incremental launching construction;
5, existing can erect the stride formula top to adjustment and push away and also can not meet non-constant section main beam structure, especially the inadaptable orthotropic plate bridge deck structure girder without longeron, and for node by power steel trusses more be difficult to adapt to, also just cannot carry out incremental launching construction.
Summary of the invention
The purpose of this utility model is to provide a kind of large-span continuous steel truss girder Multipoint synchronous automated cycle alternately sliding boots top, top pushing system, this system adopts the top sliding boots that can automatically, immediately compensate elevation to replace highly nonadjustable slide block, adopt computer to realize erecting to, vertical and horizontal three-dimensional centralized Control, make steel trusses top push through journey realizes automatically adjustment top sliding boots height, compensate pier, platform vertical error; Solve the problems referred to above that prior art exists preferably.
The technical scheme solved the problem is a kind of large-span continuous steel truss girder Multipoint synchronous automated cycle alternately piston shoes top pushing system, comprise: for steel trusses segmentation fall apart spelling, dock shaping steel trusses platform for lining, steel nose girder, interim pier, top sliding boots, slideway and Controlling System;
Described slideway comprises main skid and secondary slideway, main skid is also known as pushing slide, and for undertaking the dead load of steel trusses, secondary slideway is used for undertaking and replaces before and after piston shoes, often being provided with two covers on cover slideway and can erect the top sliding boots to adjustment height, described top sliding boots comprise top sliding boots I, top sliding boots II;
Be arranged on main skid bottom the sliding boots of top, its upper support on the lower chord node of steel trusses and steel nose girder, counter-force frame is arranged on main skid front end; The successively incremeantal launching method screw block pushing away steel trusses for pushing up is arranged on counter-force frame, and successively incremeantal launching method screw block and top sliding boots are connected by pull bar or steel strand or wireline or steel pull-rod;
Respectively there is the horizontal screw block of a set of piston shoes sliding boots both sides, top, correct for steel trusses transverse excursion, are provided with, in the sliding boots of top, the piston shoes that can automatically, immediately compensate elevation and erect to screw block;
The horizontal screw block of successively incremeantal launching method screw block, piston shoes and piston shoes erect and form thrusting slip hydraulic jack system to screw block, and liquid electric control system is integrated in thrusting slip hydraulic jack system, and by centralized computer control;
Often cover successively incremeantal launching method screw block, the horizontal screw block of piston shoes and piston shoes erect and are provided with pressure transmitter and displacement sensor to screw block, for detecting the particular location of the pressure of each screw block, the displacement of hydro-cylinder and top sliding boots; The control data of the liquid electric control system on all each slideways is concentrated and is fed back to host computer, by computer, liquid electric control system is sent steering order, it is achieved incremental launching construction is synchronous;
Top pushes through in journey, and certain top sliding boots has arrived position control point, and computer concentrates all top sliding boots of control that send instructions to erect to screw block jack-up steel trusses simultaneously.
Its further technical scheme is: pushing slide length is spacing and a top sliding boots length sum of the adjacent node of steel trusses.
Described main skid or secondary slideway are provided with stainless steel slip plane, be inlaid with MGE plate and form slip plane bottom the sliding boots of top, and top sliding boots are placed in above the stainless steel slip plane of main skid or secondary slideway, and composition slippage is secondary.
Steel nose girder is arranged on steel trusses front end, is provided with at steel nose girder front end node and erects to Lifting Equipment.
Owing to adopting technique scheme, the large-span continuous steel truss girder Multipoint synchronous automated cycle of the utility model is alternately pushed up sliding boots top pushing system and is had following feature and useful effect:
1, the platform for lining of steel trusses can arrange interruption formula slideway, employing is arranged on platform for lining slideway, erects the top sliding boots to screw block with piston shoes and the horizontal screw block of piston shoes, automatically compensate slideway elevation and automatically correct the horizontal off normal of steel trusses, adjust assembled steel purlin girder segment three-dimensional and coordinate is installed, and weld with Anterior Segment or bolt is connected into and pushes away entirety for pushing up.
2, steel trusses top pushes to adopt with discontinuous sectional type slideway, the length that every section of slideway length must be greater than between steel trusses node, top sliding boots on slideway are only supported in steel trusses node place, and steel trusses comes and goes replacement by pushing up the front and back circulation of sliding boots on slideway and realizes continuous pushed forward.
When 3, slideway pushes up sliding boots cycle alternation, erect after the synchronous top lifting steel trusses to certain altitude of screw block by top set sliding boots interior on the sliding boots of top, the top sliding boots of slideway rear end are directly fed by rear node, then multiple stage top sliding boots erect to screw block more synchronous caving complete top sliding boots conversion, the top sliding boots of slideway front end exit main skid, before and after realizing, top sliding boots are alternately changed, greatly save the artificial disassembly and assembly time of slideway top sliding boots, level of automation improves, and accelerates top and pushes away speed.
4, successively incremeantal launching method screw block jacking force passes through towing, pushing piston shoes; top sliding boots pass to steel trusses by stiction; welding in steel trusses main body, bolt is not needed to connect temporary anchoring structure or an interim hoop armful structure; more be conducive to being protected by steel trusses; avoid structure being caused construction damage and destruction, it is more conducive to steel trusses erection construction.
5, when steel trusses top pushes away, realize Multi-hole steel trusses continuous synchronization top by the electrical integrated incremental launching construction control techniques of liquid to push away, realizing steel trusses erects to synchronous jacking, synchronous replacement, pushes up sliding boots, centralized Control steel trusses longitudinally, erect to the hydraulic efficiency system with transverse direction, top pushes away, jacking and traversing automatic adjustment, automatically compensates slideway elevation and automatically corrects the horizontal off normal of steel trusses, machinery and level of automation height, labor strength is little, working efficiency height.
6, when carrying out steel trusses top and push away, front end arranges special variable cross-section steel nose girder, it is possible to meets and simplifies large span many joist trussed steel beams top and push through hole.
7, by the slideway of interim pier and permanent pier and steel trusses platform for lining and top sliding boots, carry out Multipoint synchronous top and push away, meet steel trusses can only node loading characteristic, disperseed horizontal jacking force, solved the problem that jacking force is big.
In sum, the utility model system has mechanization degree height, automatically controls well, the features such as the duration is short in construction, construction safety, quality controllable, good economy performance; All steel trusses are assembled all to be completed on steel trusses assembly platform, it is possible to realizing factory operation, avoid the assembled operation of steel trusses in a large amount of water, security risk reduces greatly; On steel trusses assembly platform, the adjustment of assembled trussed steel beam linear more easily realizes simultaneously, substantially increases the assembled speed of steel trusses, has saved the duration, ensure that the safety of construction and quality; Steel trusses jacking force is delivered to steel trusses by top sliding boots, top sliding boots are supported on steel trusses base plate, jacking force is transmitted by the stiction of top sliding boots and steel trusses base plate, this structure does not need to weld temporary fixing structure in steel trusses main body, hoop on steel trusses is not needed to embrace any temporary structure yet, both saved cost, in turn ensure that Steel truss structure was not damaged.
Secondly, steel trusses top pushes to adopt by variable cross-section nose girder technology, eliminates and arranges huge interim pier, flood prevention in flood season is favourable, avoid the cleaning in later stage river course, the top both having achieved longspan steel truss girder pushes away operation, again save executive cost, decrease the pollution to river course.
Below, in conjunction with the accompanying drawings and embodiments the technology feature of the large-span continuous steel truss girder Multipoint synchronous automated cycle of the utility model alternately sliding boots top, top pushing system is further described.
Accompanying drawing explanation
Fig. 1 is the large-span continuous steel truss girder Multipoint synchronous automated cycle alternately one-piece construction of sliding boots top, top pushing system and the fitting arrangement under construction state thereof of the utility model;
The large-span continuous steel truss girder Multipoint synchronous automated cycle that Fig. 2 is the utility model alternately pushes up sliding boots top pushing system at slideway construction process partial enlargement figure;
Fig. 3 is the vertical view of Fig. 2;
The large-span continuous steel truss girder Multipoint synchronous automated cycle that Fig. 4 is the utility model replaces the top sliding boots structure pushing up sliding boots top pushing system and steel trusses installation position view (front view);
Fig. 5 is top sliding boots structural representation (front view);
Fig. 6 is the left view of Fig. 5.
In figure:
1-steel trusses platform for lining,
2-steel trusses, 21-Section 1 steel purlin girder segment, 26-Section 6 steel purlin girder segment, 2n-n-th saves steel purlin girder segment,
2n-1-(n-1)th saves steel purlin girder segment;
3-pushes up sliding boots, and 31-pushes up sliding boots I, 32-and pushes up sliding boots II;
4-sectional type slideway, 41-main skid, the secondary slideway of 42-;
5-ground tackle, 6-steel strand, wireline or steel pull-rod, 7-successively incremeantal launching method screw block, 71-counter-force frame; The permanent pier of 8-, 81-bracing members frame, 9-steel nose girder, the interim pier of 10-, 11-pushes up sliding boots and erects to screw block, and 12-pushes up the horizontal screw block of sliding boots;
13-pushes up the MGE plate that sliding boots bottom surface is inlayed, the stainless steel slip plane on 14-main skid, and 15-pushes up sliding boots hinge arm, 16-horizontal limit devices, 17-steel trusses node.
The slide plate that MGE plate-engineering plastic alloy self-lubricating material is made.
Embodiment
A kind of large-span continuous steel truss girder Multipoint synchronous automated cycle is sliding boots top, top pushing system alternately, as shown in Figure 1, this large-span continuous steel truss girder Multipoint synchronous automated cycle alternately sliding boots top, top pushing system comprise: for steel trusses segmentation fall apart spelling, dock shaping steel trusses platform for lining 1, steel nose girder 9, interim pier 10, top sliding boots 3, slideway 4 and Controlling System;
Such as Fig. 2, shown in Fig. 3, described slideway comprises main skid 41 and secondary slideway 42, main skid 41 is also known as pushing slide, for undertaking the dead load of steel trusses, secondary slideway is used for undertaking before and after the sliding boots of top and replaces, often overlap slideway 4(and comprise main skid 41 and secondary slideway 42) on be provided with two covers and can erect the top sliding boots 3 to adjustment height, described top sliding boots 3 comprise top sliding boots I 31, top sliding boots II 32, it is arranged on main skid 41 bottom the sliding boots of top, its upper support is on the lower chord node of steel trusses 2 and steel nose girder 9, it is arranged on main skid front end for installing the counter-force frame 71 of the successively incremeantal launching method screw block 7 that top pushes away steel trusses, successively incremeantal launching method screw block 7 is arranged on counter-force frame, successively incremeantal launching method screw block 7 and top sliding boots 3 are connected by pull bar or steel strand or wireline or steel pull-rod,
Respectively there is the horizontal screw block 12 of a set of top sliding boots sliding boots 3 both sides, top, correct for steel trusses transverse excursion, are provided with, in the sliding boots 3 of top, the top sliding boots that can automatically, immediately compensate elevation and erect to screw block;
Successively incremeantal launching method screw block, the horizontal screw block of top sliding boots and top sliding boots erect and form thrusting slip hydraulic jack system to screw block, and liquid electric control system is integrated in thrusting slip hydraulic jack system, and by centralized computer control;
Often cover successively incremeantal launching method screw block, the horizontal screw block of top sliding boots and top sliding boots erect and are provided with pressure transmitter and displacement sensor to screw block, for detecting the particular location of the pressure of each screw block, the displacement of hydro-cylinder and top sliding boots; The control data of the liquid electric control system on all each slideways is concentrated and is fed back to host computer, by computer, liquid electric control system is sent steering order, it is achieved incremental launching construction is synchronous;
Top pushes through in journey, and certain top sliding boots has arrived position control point, and computer concentrates all top sliding boots of control that send instructions to erect to screw block jack-up steel trusses simultaneously.
Pushing slide length is spacing and a top sliding boots length sum of the adjacent node of steel trusses.
Main skid 41 as pushing slide is provided with stainless steel slip plane 14, is inlaid with MGE plate and forms slip plane bottom the sliding boots of top, and top sliding boots are placed in above the stainless steel slip plane 14 of main skid 41, and composition slippage is secondary.
The large-span continuous steel truss girder Multipoint synchronous automated cycle of the utility model is alternately pushed up sliding boots top pushing system be used for realizing large-span continuous steel truss girder Multipoint synchronous automated cycle alternately top sliding boots incremental launching construction, adopt that centralized computer control is positioned at the successively incremeantal launching method screw block of main skid front end, top sliding boots erect to screw block, the top horizontal screw block of sliding boots, realize steel trusses automatically, off normal is corrected in synchronous, successively incremeantal launching method and traveling automatically, its Control system architecture and tool body controlling means adopt prior art to realize, and repeat no more herein.
Owing to being subject to the impact of steel trusses, interim Dun Tai, the permanent structure iron degree such as Dun Tai, slideway when large-span continuous steel truss girder top pushes away, there is difference in each point height, this error can cause steel trusses top to push away resistance greatly to improve, the utility model system is adopted to adjust the vertical error to compensate this said structure by the top sliding boots of adjustable height, thus it is controlled to realize slideway elevation;
Push through skew in journey for avoiding steel trusses on top and axis is installed, main skid is provided with horizontal limit devices 16 spacing, place sliding boots horizontal screw block 12 in top between horizontal limit devices 16 and top sliding boots 3 and realize the dynamic conditioning that top pushes through transversal displacement or level angle in journey, automatically correct after the horizontal off normal of steel trusses avoids steel trusses to put in place and carry out integrated regulation again.
At steel trusses platform for lining 1 cocycle assembled steel purlin girder segment, temporary steel support frame-steel nose girder 9 must be set, steel nose girder 9 can make variable cross-section form (see Fig. 1), meeting maximum cantilever state strength, rigidity requirement, steel nose girder 9 front end node arranges and erects to Lifting Equipment (not marking in figure).
Claims (4)
1. a large-span continuous steel truss girder Multipoint synchronous automated cycle alternately piston shoes top pushing system, it is characterised in that: this large-span continuous steel truss girder Multipoint synchronous automated cycle replaces piston shoes top pushing system and comprises:
For steel trusses segmentation fall apart spelling, dock shaping steel trusses platform for lining (1), steel nose girder (9), interim pier (10), top sliding boots (3), slideway (4) and Controlling System;
Described slideway (4) comprises main skid (41) and secondary slideway (42), main skid (41) is also known as pushing slide, for undertaking the dead load of steel trusses, secondary slideway is used for undertaking and replaces before and after piston shoes, often overlap slideway (4) is provided with two covers can erect to adjustment height top sliding boots (3), described top sliding boots (3) comprise top sliding boots I (31), top sliding boots II (32);
Be arranged on bottom the sliding boots of top that main skid (41) is upper, its upper support on the lower chord node of steel trusses (2) and steel nose girder (9), counter-force frame (71) is arranged on main skid front end; The successively incremeantal launching method screw block (7) pushing away steel trusses for pushing up is arranged on counter-force frame, and successively incremeantal launching method screw block (7) and top sliding boots (3) are connected by pull bar or steel strand or wireline or steel pull-rod;
Respectively there is the horizontal screw block (12) of a set of piston shoes sliding boots (3) both sides, top, correct for steel trusses transverse excursion, are provided with, in top sliding boots (3), the piston shoes that can automatically, immediately compensate elevation and erect to screw block (11);
The horizontal screw block of successively incremeantal launching method screw block, piston shoes and piston shoes erect and form thrusting slip hydraulic jack system to screw block, and liquid electric control system is integrated in thrusting slip hydraulic jack system, and by centralized computer control;
Often cover successively incremeantal launching method screw block, the horizontal screw block of piston shoes and piston shoes erect and are provided with pressure transmitter and displacement sensor to screw block, for detecting the particular location of the pressure of each screw block, the displacement of hydro-cylinder and top sliding boots; The control data of the liquid electric control system on all each slideways is concentrated and is fed back to host computer, by computer, liquid electric control system is sent steering order, it is achieved incremental launching construction is synchronous;
Top pushes through in journey, and certain top sliding boots has arrived position control point, and computer concentrates all top sliding boots of control that send instructions to erect to screw block jack-up steel trusses simultaneously.
2. large-span continuous steel truss girder Multipoint synchronous automated cycle according to claim 1 alternately piston shoes top pushing system, it is characterised in that: pushing slide length is spacing and a top sliding boots length sum of the adjacent node of steel trusses.
3. large-span continuous steel truss girder Multipoint synchronous automated cycle according to claim 1 alternately piston shoes top pushing system, it is characterized in that: main skid or secondary slideway are provided with stainless steel slip plane (14), it is inlaid with MGE plate bottom the sliding boots of top and forms slip plane, top sliding boots are placed in above the stainless steel slip plane (14) of main skid or secondary slideway, and composition slippage is secondary.
4. large-span continuous steel truss girder Multipoint synchronous automated cycle according to claim 1 alternately piston shoes top pushing system, it is characterised in that: steel nose girder (9) is set in steel trusses front end, is provided with at steel nose girder (9) front end node and erects to Lifting Equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520939437.1U CN205276140U (en) | 2015-11-23 | 2015-11-23 | Continuous steel longeron multi -point synchronization automatic cycle of large -span piston shoes top in turn pushes away system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520939437.1U CN205276140U (en) | 2015-11-23 | 2015-11-23 | Continuous steel longeron multi -point synchronization automatic cycle of large -span piston shoes top in turn pushes away system |
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| Publication Number | Publication Date |
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| CN205276140U true CN205276140U (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520939437.1U Withdrawn - After Issue CN205276140U (en) | 2015-11-23 | 2015-11-23 | Continuous steel longeron multi -point synchronization automatic cycle of large -span piston shoes top in turn pushes away system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105274942A (en) * | 2015-11-23 | 2016-01-27 | 柳州欧维姆工程有限公司 | Large-span continuous steel truss multi-point synchronous automatic cyclic alternating sliding shoe push system and construction method thereof |
| CN106437177A (en) * | 2016-10-14 | 2017-02-22 | 上海天演建筑物移位工程股份有限公司 | Synchronous and alternating pushing construction method |
| CN108103953A (en) * | 2018-03-09 | 2018-06-01 | 中国铁建大桥工程局集团有限公司 | Suitable for high-block bridge degree steel truss girder bridge double-slider push construction method |
-
2015
- 2015-11-23 CN CN201520939437.1U patent/CN205276140U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105274942A (en) * | 2015-11-23 | 2016-01-27 | 柳州欧维姆工程有限公司 | Large-span continuous steel truss multi-point synchronous automatic cyclic alternating sliding shoe push system and construction method thereof |
| CN106437177A (en) * | 2016-10-14 | 2017-02-22 | 上海天演建筑物移位工程股份有限公司 | Synchronous and alternating pushing construction method |
| CN108103953A (en) * | 2018-03-09 | 2018-06-01 | 中国铁建大桥工程局集团有限公司 | Suitable for high-block bridge degree steel truss girder bridge double-slider push construction method |
| CN108103953B (en) * | 2018-03-09 | 2019-10-15 | 中国铁建大桥工程局集团有限公司 | Suitable for high-block bridge degree steel truss girder bridge double-slider push construction method |
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Legal Events
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| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160601 Effective date of abandoning: 20170531 |