CN105839550B - A kind of compressing walking mechanism and cantilever cradle for cantilever cradle - Google Patents
A kind of compressing walking mechanism and cantilever cradle for cantilever cradle Download PDFInfo
- Publication number
- CN105839550B CN105839550B CN201610343976.8A CN201610343976A CN105839550B CN 105839550 B CN105839550 B CN 105839550B CN 201610343976 A CN201610343976 A CN 201610343976A CN 105839550 B CN105839550 B CN 105839550B
- Authority
- CN
- China
- Prior art keywords
- type groove
- walking mechanism
- reaction
- longeron
- groove steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/10—Cantilevered erection
- E01D21/105—Balanced cantilevered erection
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Rehabilitation Tools (AREA)
Abstract
The present invention is a kind of compressing walking mechanism and cantilever cradle for cantilever cradle, and compressing walking mechanism includes rear cross beam, reaction beam and back-pressure wheel apparatus.Rear cross beam is arranged on the rear upper of main couple longeron along horizontal cross, and rear cross beam is fixedly connected with main couple longeron；Reaction beam is disposed longitudinally on the side of main couple longeron along level, and parallel with main couple longeron；The front-end and back-end of reaction beam are anchored in box beam beam section by reaction beam fixing device respectively.What back-pressure wheel apparatus can be vertically moved is set on reaction beam；The bottom of back-pressure wheel apparatus and the bottom surface of reaction beam are in rolling contact, and the top of back-pressure wheel apparatus is fixed on rear cross beam.Cantilever cradle is provided with three chip architecture identical girder truss.The present invention can pass to eccentric moment the fining twisted steel being anchored in the concrete of box beam beam section, be carried completely by fining twisted steel, it is to avoid Hanging Basket walking, working condition anchor force are all concentrated on main couple longitudinal axis, and force structure is more reasonable.
Description
Technical field
The present invention is on a kind of servicing unit of Hanging Basket cantilever construction, more particularly to a kind of compressing for cantilever cradle
Walking mechanism and cantilever cradle.
Background technology
With the development of modern bridge technology, the gerber beam bridge across river, deep valley, road is more and more extensive
Using cantilever the continuous beam bridge construction key technology is Hanging Basket.Current Types of Cradles mainly include triangle hanging basket and Diamond-Shape Form Traveler with
And the exploration of both Hanging Baskets is improved, the design and construction of Hanging Basket walking mechanism is the key of whole Hanging Basket system construction.
The design and construction of any Hanging Basket running gear be all premised on safety, using ensure cantilever casting beam construction quality and progress as
Purpose, with cost-effective for additional conditions.
Hanging Basket be one can along track travel movable steel construction, Hanging Basket is suspended on the box beam beam section of stretch-draw anchor
On, the work such as the model sheetinstallat of box beam beam section, reinforcing bar colligation, Pipe installing, concrete placings, prestressed stretch-draw, mud jacking during cantilever pouring
Make to carry out on Hanging Basket.After the completion of the operational procedure of a beam section, Hanging Basket releases anchoring, shifts to next beam section construction.
Hanging Basket needs anchor after releasing before movement, and Hanging Basket is to avoid due to inclining produced by wobbler action in walking process on track girder
Torque is covered, it is necessary to apply counter-force to Hanging Basket using compressing walking mechanism, it is ensured that stress balance in Hanging Basket walking process.Walking mechanism
It is that can draw the draw-gear that whole Hanging Basket at the uniform velocity, is stably walked forward along track girder.
Cantilever cradle construction is widely used to concrete continuous bridge, during Hanging Basket cantilever construction, and often construction completes one
Hanging Basket need to run to next beam section after individual beam section.Traditional construction technology is walked using artificial chain block traction Hanging Basket, often
The walking of Hanging Basket need to be equipped with 2 10T chain block and 8 workmans, not only labour put into larger, inefficiency, and
Walking process is time-consuming longer.At present, the widely used hydraulic jack thrusting slip bearing of Hanging Basket walking mechanism drives whole Hanging Basket
Walking, its key is to set counter-force seat in track beam-ends, is provided with steel strand wires or fining twisted steel between counter-force seat and jack, adopts
It is firm with the extruding of the extruded sleeve of one end during steel strand wires, fixed, used after installing with anchor plate using one end during fining twisted steel
Oil pump keeps synchronous and moved ahead to Hanging Basket both sides jack synchronous tension.To prevent from being influenceed by eccentric moment in Hanging Basket walking process
Cause to topple, it is necessary to set compressing walking mechanism.At present, compressing walking mechanism mainly has two kinds, and one kind is to use sleeper beam+track
The compressing walking mechanism that " back-pressure wheel " is constituted in+track；Another is using the pressure that back-pressure wheel shaft is set on main couple longeron
Compel walking mechanism.
1st, the compressing walking mechanism constituted using " back-pressure wheel " in sleeper beam+track+track needs substantial amounts of sleeper beam come place mat
The track being made up of I-steel, steel requirement is big, and cost is higher.Back-pressure wheel is monosymmetric by being located at track I-steel web
Two parts are constituted, and the upper wheel face of back-pressure wheel is contacted with the lower surface of I-steel top airfoil, are formed and are rolled operative minor.The pressure of the structure
Compel walking mechanism to be connected to because of back-pressure wheel on the level frame of girder truss, the lifting gravity of level frame cantilever end forms level frame
Eccentric moment, is acted on track by back-pressure wheel, forms a uplift force to track, this power is for solid downwards with bolt
The fastness for the track being scheduled on sleeper beam is unfavorable with stability.Girder truss only passes through back-pressure wheel and rail contact anchor when walking
Gu, fastness and stability are poor, asynchronous during walking to be easily caused the derailing of back-pressure wheel, cause Hanging Basket to topple, construction safety risk is big.
The 2nd, the compressing walking mechanism of back-pressure wheel shaft is set on main couple longeron, and the compressing walking mechanism is that back-pressure wheel shaft passes through
Fining twisted steel anchors back-pressure main couple longeron, and fining twisted steel is embedded in concrete in advance.The compressing walking mechanism ensure that Hanging Basket
Walking safety, stress is firm and simple in construction easy to implement.But because back-pressure wheel shaft original place is rotated, main couple longeron arm length
Degree is limited, and shortcoming is that Hanging Basket single walking effective travel is shorter, and each Hanging Basket travel distance is only main couple longeron prolongation,
Walked in the partial stroke range, Hanging Basket can not once walk in place when single segmental concrete is constructed, Hanging Basket walking and finish rolling screw thread
Steel back-pressure wheel shaft lock longeron works alternately, and construction technology is complex, unfavorable to construction speed.
Thus, the present inventor relies on is engaged in experience and the practice of relevant industries for many years, proposes a kind of for cantilever cradle
Walking mechanism and cantilever cradle are oppressed, to overcome the defect of prior art.
The content of the invention
It is an object of the invention to provide a kind of compressing walking mechanism and cantilever cradle for cantilever cradle, make Hanging Basket row
Eccentric tilting moment during walking is carried by the fining twisted steel being anchored in concrete completely, disclosure satisfy that Hanging Basket once walk to
Position, construction safety, construction speed can be guaranteed.
The object of the present invention is achieved like this, a kind of compressing walking mechanism for cantilever cradle, the compressing walking
Mechanism is arranged on the rear portion of cantilever cradle, and the compressing walking mechanism includes such as lower component：
Rear cross beam, the rear cross beam is arranged on the rear upper of main couple longeron along horizontal cross, and the rear cross beam with
The main couple longeron is fixedly connected；
Reaction beam, the reaction beam is disposed longitudinally on the side of main couple longeron along level, and with the main couple longeron
It is parallel；The front-end and back-end of the reaction beam are anchored in box beam beam section by reaction beam fixing device respectively；The reaction beam
Tilting moment for bearing the cantilever cradle；
Back-pressure wheel apparatus, what the back-pressure wheel apparatus can be vertically moved is set on the reaction beam；The back-pressure wheel dress
The bottom put and the bottom surface of the reaction beam are in rolling contact, and the top of the back-pressure wheel apparatus is fixed on the rear cross beam；Institute
Stating back-pressure wheel apparatus is used to the power on the main couple longeron passing to the reaction beam.
In the better embodiment of the present invention, the back-pressure wheel apparatus includes：
Support frame, support frame as described above is set on the reaction beam, and the upper end of support frame as described above is fixedly connected with the rear horizontal stroke
Beam；
Roller, the roller is rotatably connected on the bottom of support frame as described above by wheel shaft, and the roller is located at the counter-force
The lower section of beam, the bottom surface of the upper wheel face and the reaction beam of the roller is in rolling contact.
In the better embodiment of the present invention, the top of support frame as described above is provided with connection end, the two of the connection end
Side respectively symmetrically extends downwardly from side plate, and the bottom of two side plates is rotated by the wheel shaft connects the roller；It is described
Reaction beam is located between two side plates, and the connection end is connected by bolt with the rear cross beam.
In the better embodiment of the present invention, the reaction beam fixing device includes the first fixed beam and second and fixed
Beam；The first fixed beam level is anchored at the upper surface of the box beam beam section；Second fixed beam is vertically arranged, and described
The lower end of two fixed beams overlaps with first fixed beam and fixed, and the upper end of second fixed beam and reaction beam overlap joint are solid
It is fixed.
In the better embodiment of the present invention, first fixed beam is provided with two, two first fixed beams
Stacked on top is set；Two first fixed beams are anchored at the upper surface of the box beam beam section by fining twisted steel.
In the better embodiment of the present invention, first fixed beam is made up of two first U-type groove steel, two institutes
State that first U-type groove steel back side in same level is relative to be arranged side by side, and between the back side of two first U-type groove steel
With gap, the upper side and lower side of two first U-type groove steel is linked together using connecting plate；Two described first are consolidated
Communicated when determining beam stacked on top above and below the gap；The fining twisted steel be each passed through the first U-type groove steel of every side with
The box beam beam section anchoring；The lower end of second fixed beam extend into the gap described by reinforcing plate and both sides
One U-type groove steel bolt connection.
In the better embodiment of the present invention, second fixed beam is made up of upper linkage section and lower linkage section；Institute
State lower linkage section to be made up of two second U-type groove steel, two second U-type groove steel openings are relative to be snapped together vertically,
And in the both sides for forming snapping seam the connecting plate is respectively adopted two second U-type groove steel link together；It is described
Lower linkage section is stretched into the gap, and the back side of the every second U-type groove steel passes through the reinforcing plate and corresponding institute respectively
State the back side bolt connection of the first U-type groove steel.
In the better embodiment of the present invention, the upper linkage section is made up of two the 3rd U-type groove steel；Described in two
3rd U-type groove steel back face is relative to be vertically arranged side by side, the back side of the every 3rd U-type groove steel lower end with it is corresponding described
The back side overlap joint of second U-type groove steel upper end, and be bolted to the reinforcement plate together by described；The reaction beam is located at two institutes
State between the 3rd U-type groove steel, the back side of two the 3rd U-type groove steel upper ends passes through the reinforcing plate and the counter-force beam bolt
Connection.
The purpose of the present invention can also be achieved in that, a kind of using the cantilever cradle for oppressing walking mechanism as described above, institute
Cantilever cradle is stated provided with three chip architecture identical girder truss, three girder truss are first-class in the transverse direction of the box beam beam section
It is arranged at intervals；The every girder truss includes the main couple longeron, and the main couple longeron is indulged along the box beam beam section
To setting；The rear cross beam horizontal cross is arranged on the rear upper of three main couple longerons, and with three main trusses
Frame longeron is fixedly connected；A set of compressing walking mechanism is equipped between girder truss described in adjacent two panels.
From the above mentioned, compressing walking mechanism of the invention can pass to the eccentric moment in cantilever cradle walking process
The fining twisted steel in the concrete of box beam beam section is anchored at, is carried completely by fining twisted steel, it is to avoid Hanging Basket walking, working condition
Anchor force is all concentrated on main couple longitudinal axis, and force structure is more reasonable, improves the security of cantilever cradle walking.The pressure
Compel walking mechanism to be formed by small-sized steel structure assembling, without large lifting equipment spelling.Due to using reaction beam, the reaction beam
Length can be arranged as required to, and meet the requirement that cantilever cradle is once walked in place, so its construction safety, progress can be obtained
To guarantee.According to the design feature of constructed box beam, be arranged side by side three girder truss in box beam beam section, adjacent two panels girder
A set of compressing walking mechanism is equipped between truss, force structure is more reasonable.
Brief description of the drawings
The following drawings is only intended to, in doing schematic illustration and explanation to the present invention, not delimit the scope of the invention.Wherein：
Fig. 1：For present invention compressing walking mechanism and the side structure schematic diagram of cantilever cradle.
Fig. 2：For the rear portion anchor structure view of present invention compressing walking mechanism.
Fig. 3：For the structure for amplifying view of back-pressure wheel apparatus at A in Fig. 1.
Fig. 4：For the first fixed beam in the present invention and the side schematic view of the second fixed beam lap-joint.
Fig. 5：For the first fixed beam in the present invention and the top view of the second fixed beam lap-joint.
Fig. 6：The cross-sectional configuration figure snapped together for two single u-shaped channel-section steels.
Fig. 7：For the attachment structure enlarged drawing of the first fixed beam, the second fixed beam and reaction beam at B in Fig. 2.
Embodiment
In order to which technical characteristic, purpose and effect to the present invention are more clearly understood from, now control illustrates this hair
Bright embodiment.
As shown in figure 1, left and right directions is longitudinal direction in figure, perpendicular to the direction of paper for laterally.The invention provides one kind
For the compressing walking mechanism 100 of cantilever cradle, cantilever cradle 200 includes main couple longeron 2011, the main couple longeron
2011 are arranged on slip support abutment 202 along vertical equity, and slip support abutment 202 is slidably supported on track girder 203, track girder
203 are anchored on box beam beam section a, and the main couple longeron 2011 can be moved along the longitudinal direction of track girder 203 under walking mechanism effect
It is dynamic.The compressing walking mechanism 100 is arranged on the rear portion of cantilever cradle 200, and the compressing walking mechanism 100 includes such as bottom
Part：
Rear cross beam 101, the rear cross beam 101 is horizontally installed on the rear upper of main couple longeron 2011 along horizontal plane,
And the rear cross beam 101 is fixedly connected with the main couple longeron 2011, it can be moved together with the main couple longeron 2011；
Reaction beam 102, the reaction beam 102 is disposed longitudinally on the side of main couple longeron 2011 along horizontal plane, and with
The main couple longeron 2011 is parallel；The front-end and back-end of the reaction beam 102 are anchored at by reaction beam fixing device respectively
On box beam beam section a；The reaction beam 102 is used for the tilting moment for bearing the cantilever cradle 200；
Back-pressure wheel apparatus 103, what the back-pressure wheel apparatus 103 can be vertically moved is set on the reaction beam 102；It is described
The bottom of back-pressure wheel apparatus 103 and the bottom surface of the reaction beam 102 are in rolling contact, and the top of the back-pressure wheel apparatus 103 is fixed
In the rear on crossbeam 101；The back-pressure wheel apparatus 103 is described anti-for the power on the main couple longeron 2011 to be passed to
Power beam 102.
The course of work of above-mentioned compressing walking mechanism 100 is：Main couple longeron 2011 in the presence of walking mechanism along
The longitudinal direction of track girder 203 (right side into figure) is mobile, drives rear cross beam 101 to move together；From figure 1 it appears that the cantilever
Hanging Basket 200 is fulcrum with slip support abutment 202, can produce the torque dumped forward, and the rear portion of cantilever cradle 200 is tilted upward
The trend risen；The torque that rear cross beam 101 upwarps main couple longeron 2011 is delivered to reaction beam 102 by back-pressure wheel apparatus 103
On, back-pressure wheel apparatus 103 rolls reach, the anchor of reaction beam 102 while clasping 102 bottom surface of reaction beam on the bottom surface of reaction beam 102
Gu finally bearing the tilting moment of whole cantilever cradle 200 on box beam beam section a, the length of reaction beam 102 is cantilever cradle
200 distances that can be moved forward.Due to reaction beam 102 and main couple longeron 2011 not point-blank, it is therefore, of the invention
Compressing walking mechanism 100 avoids Hanging Basket walking, working condition anchor force and all concentrated on main couple longitudinal axis, force structure
It is more reasonable, improve the security that cantilever cradle 200 is walked.The length of the reaction beam 102 can be carried out according to the need for construction
Set, the requirement that cantilever cradle 200 is once walked in place can be met, so using the construction safety of the compressing walking mechanism 100,
Progress can be guaranteed.
In addition, present invention also offers a kind of cantilever cradle 200 using compressing walking mechanism 100 as described above, such as Fig. 2
Shown, the cantilever cradle 200 is provided with three chip architecture identical girder truss, and three girder truss are in the box beam beam section
The a first-class interval setting of transverse direction, three girder truss lateral connections are integrally formed；The every girder truss includes the main truss
Frame longeron 2011, the main couple longeron 2011 is longitudinally disposed along the box beam beam section a's；The horizontal cross of rear cross beam 101
The rear upper of three main couple longerons 2011 is arranged on, and is fixedly connected with three main couple longerons 2011；Phase
A set of compressing walking mechanism 100 is equipped between girder truss described in adjacent two panels.It is arranged side by side on box beam beam section a three
A set of compressing walking mechanism 100 is set between girder truss, adjacent two panels girder truss, and force structure is more reasonable.
As the specific embodiment of the present invention, as depicted in figs. 1 and 2, the box-beam structure constructed is single box double room,
In order that force structure is more reasonable, cantilever cradle 200 uses three chip architecture identical girder truss 201, three girder purlins
Frame 201, in the first-class interval setting of transverse direction of the box beam beam section a, is an entirety by lateral connection beam lateral connection.Every
Girder truss 201 includes a column 2012 being vertically arranged, and the bottom of column 2012 is fixedly connected with the longitudinally disposed master of level
Truss longeron 2011, the top of column 2012 passes through two connecting rods 2013 and the front-end and back-end of main couple longeron 2011 respectively
Connection, forms the girder truss structure of a piece of triangle.The downside of main couple longeron 2011 is fixedly connected with slip support abutment 202, sliding
Move bearing 202 to be slidably supported on track girder 203, track girder 203 is along the longitudinal direction anchor parallel with main couple longeron 2011
Gu on box beam beam section a, for forming the guide rail of the slip of slip support abutment 202.A counter-force is fixedly arranged at the front end with track girder 203
Seat 204, the rear side of slip support abutment 202 sets a hydraulic feed-through jack 205 for being used for promoting slip support abutment 202 to advance,
A piece fining twisted steel c is fixed on horizontal through slip support abutment 202 and jack 205, fining twisted steel c one end with anchor plate
On counter-force seat 204.Other two panels girder truss 201 are also using the connected mode communicated.The side panel mark stroke of track girder 203
Scale.Control oil pump system, jack 205 forms reaction force by fining twisted steel c on counter-force seat 204, promotes and slides
Move bearing 202 and then drive whole cantilever cradle 200 to move forward.
The rear cross beam 101 is horizontally installed on the rear upper of three main couple longerons 2011, Mei Gezhu along horizontal plane
It is fixedly connected between truss longeron 2011 and the rear cross beam 101 by one section of round steel pipe b, round steel pipe b upper ends are connected with
Rear cross beam 101, lower end is connected with main couple longeron 2011.Applied as shown in Fig. 2 walking to enter in place when cantilever cradle 200
After the work stage, the rear cross beam 101 is passed through by the fining twisted steel c being embedded in concrete, in fining twisted steel c described in
The upper blending bolt of anchor plate 2014 is padded behind the upside of rear cross beam 101 to be locked, and the completion of reaction beam fixing device is now unclamped again
Stress system is changed, and makes the tilting moment of cantilever cradle 200 transfer to be born by the fining twisted steel c through the rear cross beam 101.
A piece reaction beam 102, its attachment structure all same, with one of them are set respectively between adjacent two panels girder truss 201
The attachment structure of reaction beam 102 is illustrated.The reaction beam 102 is disposed longitudinally on main couple longeron 2011 along horizontal plane
Side, and it is parallel with the main couple longeron 2011；The front-end and back-end of the reaction beam 102 are fixed by reaction beam fill respectively
Put and be anchored on box beam beam section a；In the walking phase of cantilever cradle 200, the fining twisted steel c through the rear cross beam 101 unclamps,
It is not subject to power；The reaction beam 102 is used for the tilting moment for bearing the cantilever cradle 200, fixes and fills eventually through reaction beam
Put to withstand forces.What the back-pressure wheel apparatus 103 can be vertically moved is set on the reaction beam 102；The back-pressure wheel apparatus
103 bottom and the bottom surface of the reaction beam 102 are in rolling contact, and the top of the back-pressure wheel apparatus 103 fixes horizontal in the rear
On beam 101；The back-pressure wheel apparatus 103 is used to the power on the main couple longeron 2011 passing to the reaction beam 102.
Further, as shown in figure 3, the back-pressure wheel apparatus 103 includes support frame 1031 and roller 1032, support frame 1031
For a frame steel structure, support frame as described above 1031 is set on the reaction beam 102, and the upper end of support frame as described above 1031 is fixed
Connect the rear cross beam 101.The roller 1032 is rotatably connected on the bottom of support frame as described above 1031 by wheel shaft 1033, described
Roller 1032 is located at the lower section of the reaction beam 102, and the bottom surface of the upper wheel face of the roller 1032 and the reaction beam 102 is rolled
Contact.Specifically, the substantially one U-shaped framework of support frame as described above 1031, its top is provided with connection end, the two of the connection end
Side respectively symmetrically extends downwardly from a side plate, and the bottom of two side plates is rotated by the wheel shaft 1033 connects the roller
1032.The reaction beam 102 is located between two side plates, and the connection end is connected by bolt with the rear cross beam 101.
Further, as shown in Figure 4, Figure 5 and Figure 6, the reaction beam fixing device is solid including the first fixed beam 104 and second
Determine beam 105；The level of first fixed beam 104 is anchored at the upper surface of the box beam beam section a；Second fixed beam 105 is erected
Straight to set, the lower end of second fixed beam 105 overlaps with first fixed beam 104 and fixed, second fixed beam 105
Upper end overlaps with the reaction beam 102 and fixed.Second fixed beam 105 has necessarily between the upper surface of the box beam beam section a
Distance, so as to for setting back-pressure wheel apparatus 103.In order to increase reliability, first fixed beam 104 is provided with two, two
First fixed beam 104 stacks set in the horizontal direction up and down；Two first fixed beams 104 are passed through using fining twisted steel c
Two first fixed beams 104 are anchored to the upper surface of the box beam beam section a afterwards.Specifically, first fixed beam 104 is by two
The first U-type groove of root steel 1041 is constituted, and two flanks of U-type groove steel are set into the company between both sides, two flanks for convenience of description
Socket part positions the back side, and relative with the back side is opening.As shown in figure 5, two first U-type groove steel 1041 are in same level
The interior back side is relative to be arranged side by side, and has gap, two described first between the back side of two first U-type groove steel 1041
The upper side and lower side of U-type groove steel 1041 is linked together using connecting plate 1042；Connecting plate 1042 is in the first U-type groove steel 1041
The upper side and lower side uniform intervals set, the side of connecting plate 1042 is bolted one of them first U-type groove steel 1041
The upper side and lower side, the opposite side of connecting plate 1042 is bolted the upper side and lower side of another the first U-type groove steel 1041,
The first fixed beam 104 is integrally formed so as to which two first U-type groove steel 1041 side by side are connected as into one.As shown in figure 4, up and down
When two first fixed beams 104 are stacked, the upside of two first U-type groove steel 1041 below and two first U-type grooves above
The downside of steel 1041 is bolted together, and is communicated above and below gap therein.The fining twisted steel c is each passed through every side
Two first U-type groove steel 1041 and box beam beam section a are anchored up and down.The lower end of second fixed beam 105 extend into described
Pass through the bolt connection of the first U-type groove steel 1041 corresponding with both sides of reinforcing plate 1052 in gap.
Further, second fixed beam 105 is made up of upper linkage section and lower linkage section.The lower linkage section is by two
Two U-type groove steel 1051 are constituted, as shown in fig. 6, two second U-type groove steel 1051 be open it is relative it is vertical snap together, and
The both sides of formation snapping seam are respectively adopted the connecting plate 1042 and two second U-type groove steel 1051 link together；Wherein
The connected mode of the both sides of 1042 and second U-type groove steel of connecting plate 1051 is with described above with the both sides of the first U-type groove steel 1041
Connected mode is identical.As shown in figure 5, the lower linkage section is stretched into the gap, the thickness of the width in gap and lower linkage section
Unanimously, the back side of the every second U-type groove steel 1051 is affixed with the back side of corresponding first U-type groove steel 1041, and is led to respectively
Cross the back side bolt connection of the reinforcing plate 1052 and the corresponding first U-type groove steel 1041.I.e. bolt passes through reinforcing plate
1052nd, three is connected by the back side of the first U-type groove steel 1041 and the back side of the second U-type groove steel 1051.As shown in fig. 7, institute
Linkage section is stated to be made up of two the 3rd U-type groove steel 1053；Relative vertical side by side in two back sides of the 3rd U-type groove steel 1053
Set, the back side of the back side of the every lower end of 3rd U-type groove steel 1053 with the corresponding upper end of second U-type groove steel 1051
Overlap joint, and be bolted together by the reinforcing plate 1052；Two the 3rd U-type groove steel 1053 extend straight up, described
Reaction beam 102 is located between two the 3rd U-type groove steel 1053, the distance between two the 3rd U-type groove steel 1053 and counter-force
The thickness of beam 102 is consistent, the back side of two upper ends of the 3rd U-type groove steel 1053 by the reinforcing plate 1052 with it is described anti-
The bolt connection of power beam 102.Reaction beam 102 can also be snapped together using two single u-shaped channel-section steel openings are relative, be fixed with second
The structure of 105 times linkage sections of beam is identical.The compressing walking mechanism 100 is formed by small-sized steel structure assembling, is reseted without large-scale
Standby spelling.
Present invention compressing walking mechanism 100 and the implementation process of cantilever cradle 200 are：
1st, according to the plan-position of detail design, the finish rolling screw thread of pre-buried relevant position before box beam beam section a concrete placings
Steel c.
2nd, after attachment rail beam 203, slip support abutment 202, girder truss 201, installed at the rear portion of main couple longeron 2011
Rear cross beam 101.
The 3rd, counter-force seat 204 and hydraulic feed-through jack 205 are installed, fining twisted steel c one end is anchored at counter-force seat
On 204, make fining twisted steel c horizontal through slip support abutment 202, hydraulic feed-through jack 205.
The 4th, first fixed beam 104 is installed, anchoring is worn using fining twisted steel c；Second fixed beam 105 and reaction beam are installed
102, the height of compressing walking mechanism 100 is controlled, amount of lap is adjusted.
The 5th, support frame 1031 and roller 1032 are installed on reaction beam 102.
6th, by the upper end of support frame 1031 and the bolt connection of rear cross beam 101.
The present invention oppresses walking mechanism 100 and the walking process of cantilever cradle 200 is：
1st, the concrete for pouring box beam beam section a reaches design strength and tensioning mud jacking terminates；
2nd, the fining twisted steel c being located on rear cross beam 101 is unclamped, anchoring when releasing construction on rear cross beam 101 is entered
Row anchoring stress check calculation, is transferred to compressing walking mechanism 100, most counter-force is transferred at last by the tilting moment of cantilever cradle 200
On the fining twisted steel c for anchoring the first fixed beam 104；
3rd, loosen the front and rear suspension rod of template system using jack (being placed at the respective support of construction formwork point), make it
Decline 10~20cm so that whole template system departs from concrete surface, to carry out walking process below；
4th, 2 32T jack (works of these jack are placed respectively at the slip support abutment 202 of every girder truss 201
With being girder truss 201 is lifted in vertical direction), three girder truss 201 place altogether 6, by whole cantilever cradle 200
5~10cm of jack-up, tightens support stem nut and stabilizes it；
The 5th, track girder 203 is slid onto to the concrete front end for having poured section, and track girder 203 is anchored in has poured section
On；
6th, the jack oil return of 6 vertical supportings is made, declining three girder truss 201 makes slip support abutment 202 and track girder
203 contacts；
7th, the coating lubricating oil between track girder 203 and slip support abutment 202, operates oil pump, passes through hydraulic feed-through jack
205 thrusting slip bearings 202 move forward, and drive cantilever cradle 200 to walk, and are controlled by the scale being marked on track girder 203 whole
The individual synchronous walking of cantilever cradle 200；
8th, after cantilever cradle 200 is walked in place, rear cross beam 101 is passed through by girder truss by pre-buried fining twisted steel c
201 rear portion anchoring, then unclamps the fining twisted steel c in the first fixed beam 104 in compressing walking mechanism 100, completes stress
System transform；
9th, compressing walking mechanism 100 is advanced to the position that next section is specified, treats that concrete placings are completed, tensioning mud jacking terminates
After carry out stress check calculation；Such iterative cycles make cantilever cradle 200 move forward, until the concrete for completing all symmetrical boom segments is applied
Work.
In summary described compressing walking mechanism 100 and cantilever cradle 200, of the invention to have advantages below：
1st, compressing walking mechanism 100, can be with the premise of force request is met using the structure type of reaction beam 102
The active length of reaction beam 102 is set according to the maximum travel distance of the single segmental of cantilever cradle 200, it is ensured that cantilever cradle 200 is once
In place, walking process is uninterrupted for walking, saves the single segmental cantilever construction time, and then shorten the whole cantilever casting beam construction period.
2nd, using the Force principle of counter-force 204 structures of seat, the tensioning fining twisted steel c of hydraulic feed-through jack 205 is passed through
Thrusting slip bearing 202 drives the whole synchronism stability of cantilever cradle 200 to walk, while according to the scale marked on track girder 203
Line, the synchronism of dynamic tracking Hanging Basket walking.
3rd, compressing walking mechanism 100 effectively prevent extension by the stress check calculation of cantilever cradle 200 to the first fixed beam 104
Basket walking, working condition anchor force are all concentrated on the longitudinal axis of girder truss 201, using three girder truss 201, stress knot
Structure is more reasonable, and operating space is big, and operability is stronger.
Schematical embodiment of the invention is the foregoing is only, the scope of the present invention is not limited to.It is any
Those skilled in the art, made equivalent variations and modification on the premise of the design of the present invention and principle is not departed from,
The scope of protection of the invention should be belonged to.
Claims (9)
1. a kind of compressing walking mechanism for cantilever cradle, the compressing walking mechanism is arranged on the rear portion of cantilever cradle, its
It is characterised by, the compressing walking mechanism includes such as lower component：
Rear cross beam, the rear cross beam is arranged on the rear upper of main couple longeron along horizontal cross, and the rear cross beam with it is described
Main couple longeron is fixedly connected；
Reaction beam, the reaction beam is disposed longitudinally on the side of main couple longeron along level, and parallel with the main couple longeron；
The front-end and back-end of the reaction beam are anchored in box beam beam section by reaction beam fixing device respectively；The reaction beam is used to hold
By the tilting moment of the cantilever cradle；
Back-pressure wheel apparatus, what the back-pressure wheel apparatus can be vertically moved is set on the reaction beam；The back-pressure wheel apparatus
Bottom and the bottom surface of the reaction beam are in rolling contact, and the top of the back-pressure wheel apparatus is fixed on the rear cross beam；It is described anti-
Pressing wheel device is used to the power on the main couple longeron passing to the reaction beam.
2. it is used for the compressing walking mechanism of cantilever cradle as claimed in claim 1, it is characterised in that the back-pressure wheel apparatus bag
Include：
Support frame, support frame as described above is set on the reaction beam, and the upper end of support frame as described above is fixedly connected with the rear cross beam；
Roller, the roller is rotatably connected on the bottom of support frame as described above by wheel shaft, and the roller is located at the reaction beam
Lower section, the bottom surface of the upper wheel face and the reaction beam of the roller is in rolling contact.
3. it is used for the compressing walking mechanism of cantilever cradle as claimed in claim 2, it is characterised in that the top of support frame as described above
Provided with connection end, the both sides of the connection end respectively symmetrically extend downwardly from side plate, and the bottoms of two side plates passes through described
Wheel shaft rotates the connection roller；The reaction beam is located between two side plates, the connection end by bolt with it is described
Rear cross beam is connected.
4. it is used for the compressing walking mechanism of cantilever cradle as claimed in claim 1, it is characterised in that the reaction beam fixes dress
Put including the first fixed beam and the second fixed beam；The first fixed beam level is anchored at the upper surface of the box beam beam section；Institute
State the second fixed beam to be vertically arranged, the lower end of second fixed beam overlaps with first fixed beam and fixed, described second consolidates
The upper end and the reaction beam for determining beam overlap fixation.
5. it is used for the compressing walking mechanism of cantilever cradle as claimed in claim 4, it is characterised in that first fixed beam is set
There are two, two first fixed beam stacked on top are set；Two first fixed beams are anchored at by fining twisted steel
The upper surface of the box beam beam section.
6. as claimed in claim 5 be used for cantilever cradle compressing walking mechanism, it is characterised in that first fixed beam by
Two first U-type groove steel are constituted, and two first U-type groove steel back sides in same level are relative to be arranged side by side, and two
There is gap, the upper side and lower side of two first U-type groove steel is using connection between the back side of first U-type groove steel described in root
Plate links together；Communicated during two first fixed beam stacked on top above and below the gap；The fining twisted steel difference
The first U-type groove steel through every side is anchored with the box beam beam section；The lower end of second fixed beam extend into it is described between
Pass through reinforcing plate and the first U-type groove steel bolt connection of both sides in gap.
7. as claimed in claim 6 be used for cantilever cradle compressing walking mechanism, it is characterised in that second fixed beam by
Upper linkage section and lower linkage section composition；The lower linkage section is made up of two second U-type groove steel, two second U-type groove steel
Opening it is relative it is vertical snaps together, and the connecting plate is respectively adopted in the both sides for forming snapping seam by two described the
Two U-type groove steel link together；The lower linkage section is stretched into the gap, the back side difference of the every second U-type groove steel
Pass through back side bolt connection of the reinforcing plate with the corresponding first U-type groove steel.
8. it is used for the compressing walking mechanism of cantilever cradle as claimed in claim 7, it is characterised in that the upper linkage section is by two
The U-type groove steel of root the 3rd is constituted；Two the 3rd U-type groove steel back faces are relative to be vertically arranged side by side, every 3rd U-type groove
The back side of steel lower end is overlapped with the back side of the corresponding second U-type groove steel upper end, and is bolted to the reinforcement plate by described
Together；The reaction beam is located between two the 3rd U-type groove steel, and the back side of two the 3rd U-type groove steel upper ends leads to
Cross the reinforcing plate and the reaction beam bolt connection.
9. it is a kind of using the cantilever cradle that walking mechanism is oppressed as any one of claim 1 to 8, it is characterised in that institute
Cantilever cradle is stated provided with three chip architecture identical girder truss, three girder truss are first-class in the transverse direction of the box beam beam section
It is arranged at intervals；The every girder truss includes the main couple longeron, and the main couple longeron is indulged along the box beam beam section
To setting；The rear cross beam horizontal cross is arranged on the rear upper of three main couple longerons, and with three main trusses
Frame longeron is fixedly connected；A set of compressing walking mechanism is equipped between girder truss described in adjacent two panels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610343976.8A CN105839550B (en) | 2016-05-23 | 2016-05-23 | A kind of compressing walking mechanism and cantilever cradle for cantilever cradle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610343976.8A CN105839550B (en) | 2016-05-23 | 2016-05-23 | A kind of compressing walking mechanism and cantilever cradle for cantilever cradle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105839550A CN105839550A (en) | 2016-08-10 |
| CN105839550B true CN105839550B (en) | 2017-10-03 |
Family
ID=56593118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610343976.8A Active CN105839550B (en) | 2016-05-23 | 2016-05-23 | A kind of compressing walking mechanism and cantilever cradle for cantilever cradle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105839550B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107190651A (en) * | 2017-05-17 | 2017-09-22 | 贵州路桥集团有限公司 | A kind of Hanging Basket uses the traveling method of this device with slidingtype running gear and Hanging Basket |
| CN112127288A (en) * | 2020-10-29 | 2020-12-25 | 中建八局第二建设有限公司 | Novel track-free triangular hanging basket construction method for cantilever casting beam |
| CN113152302B (en) * | 2021-05-13 | 2022-12-06 | 中建八局第二建设有限公司 | Automatic moving device for continuous beam bridge hanging basket |
| CN113502759B (en) * | 2021-08-16 | 2022-07-19 | 合肥工业大学 | Truss and rail automatic walking device of hanging basket system |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4980257B2 (en) * | 2008-01-30 | 2012-07-18 | オリエンタル白石株式会社 | Construction method for column head construction, method for constructing mobile work vehicle using part thereof, and method for extending bridge |
| CN102174795B (en) * | 2011-03-28 | 2012-04-18 | 中铁一局集团有限公司 | Reversible suspended basket wheel type travelling system and method |
| CN202194078U (en) * | 2011-07-25 | 2012-04-18 | 中铁四局集团第一工程有限公司 | Deck hanging basket main truss shifter |
| CN102373674A (en) * | 2011-11-30 | 2012-03-14 | 浙江省交通工程建设集团有限公司第二分公司 | Triangular hanging basket traveling device |
| CN203174515U (en) * | 2013-04-08 | 2013-09-04 | 中铁十一局集团第六工程有限公司 | Self-propelled dual-running track triangular hanging basket |
| CN104074145B (en) * | 2014-06-30 | 2015-12-09 | 广东省基础工程集团有限公司 | A kind of closure segment Hanging Basket repacking construction method |
| CN205775891U (en) * | 2016-05-23 | 2016-12-07 | 中交第一公路工程局有限公司 | A kind of compressing walking mechanism for cantilever cradle and cantilever cradle |
-
2016
- 2016-05-23 CN CN201610343976.8A patent/CN105839550B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105839550A (en) | 2016-08-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105839550B (en) | A kind of compressing walking mechanism and cantilever cradle for cantilever cradle | |
| CN100543235C (en) | The method and system of erecting steel trusses by stay cable auxiliary complete cantilever | |
| CN104060844B (en) | Sliding device and lifting device for truss frame of steel structural transfer floor of the high-rise building and construction method thereof | |
| CN201003145Y (en) | Upward and self-walking type mobile die carrier | |
| CN105735141B (en) | A kind of box beam side form slide device and its construction method | |
| CN101586330A (en) | Receding construction method of cradle of continuous girder bridge made of prestressing concrete | |
| CN101736703B (en) | 3000t special bridge girder erection machine for integrally erecting 120m-span double-layer four-line steel beam bridge for highway and railway | |
| CN203049470U (en) | Hanging basket walking system | |
| CN108004924B (en) | Method for folding middle span section of double-tower double-cable-surface mixed type steel-concrete superposed beam cable-stayed bridge | |
| CN107761571A (en) | Needle beam combined steel plate beam bridge panel cast-in-place construction sliding form frame system and its application | |
| CN201106155Y (en) | Inclined guy cable auxiliary full cantaliver crane trussed steel beam device | |
| CN105239510A (en) | Dismounting beam support used for high pier small-radius curve cast-in-situ box beam and construction method | |
| CN105926464A (en) | Inverted hanging type trapezoid inclined climbing form traveler | |
| CN111042005B (en) | Construction method for cantilever casting of corrugated steel web diagonal box girder bridge by hanging basket method | |
| CN106381814A (en) | Cast-in-cantilever structure of movable crane formwork of zigzag-form steel web continuous box beam and construction method of cast-in-cantilever structure | |
| CN107268455B (en) | Concrete girder gooseneck composite structure beam cradle construction method | |
| CN110468743B (en) | Movable hanging bracket for transformation of old bridge pier cap and construction method | |
| CN111485500A (en) | Transverse lengthening reinforcing construction method and structure for retreating and dismantling of rhombic hanging basket | |
| CN103388305A (en) | Railway T-beam cast-in-site bridge deck forming machine | |
| CN207498835U (en) | Needle beam combined steel plate beam bridge panel cast-in-place construction sliding form frame system | |
| CN207987749U (en) | Ride cable-styled erection crane | |
| CN212714544U (en) | Rhombus is hung basket and is retreated and demolishd horizontal extension reinforcement construction structure | |
| CN205636521U (en) | Basket is hung in construction of truss -like cantilever | |
| CN105672136B (en) | Erecting construction process for large-span steel-concrete combination beam | |
| CN102071641A (en) | Integral bridge girder erection machine of distributed landing leg type transportation rack of concrete beam packing bridge crane and bridge girder erection engineering method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |