CN101851898B - Bridge girder erection machine capable of passing through tunnel and realizing girder erection and bridging process thereof - Google Patents
Bridge girder erection machine capable of passing through tunnel and realizing girder erection and bridging process thereof Download PDFInfo
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- CN101851898B CN101851898B CN2010101957163A CN201010195716A CN101851898B CN 101851898 B CN101851898 B CN 101851898B CN 2010101957163 A CN2010101957163 A CN 2010101957163A CN 201010195716 A CN201010195716 A CN 201010195716A CN 101851898 B CN101851898 B CN 101851898B
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Abstract
The invention relates to a bridge girder erection machine capable of passing through a tunnel and realizing girder erection and a bridging process thereof. The bridge girder erection machine comprises a mainframe and a lower guide beam, the mainframe comprises a main beam, and also comprises a rear ground jack, a rear guide beam overhead travelling crane, a rear crane trolley, a front crane trolley, a front ground jack, an auxiliary travelling ground jack and a front guide beam overhead travelling crane which are arranged successively from the rear end to the front end of the main beam; a track is arranged on the main beam, and the front crane trolley, the rear crane trolley, the front guide beam overhead travelling crane and the rear guide beam overhead travelling crane run on the track; the lower guide beam comprises a main beam of the lower guide beam, a rear ground jack arranged behind the lower part of the main beam, and a front ground jack arranged in front of the lower part of the main beam; the bridge girder erection machine and the bridging process can realize bridge girder erection and beam erection operations in mountain areas; a mode of mixed beam taking by the crane trolleys of the bridge girder erection machine, a beam transporting vehicle and a pack trolley can realize beam erection at a tunnel portal; and when passing a tunnel, a plurality of components can be retracted and folded to enable the bridge girder erection machine to pass through the channel conveniently without being limited by the diameter of the tunnel, and the bridging construction efficiency is high and the bridging operation is stable.
Description
Technical field
The present invention relates to a kind ofly can and realize the bridge formation machine of setting a roof beam in place in the tunnel face, relate in particular to a kind of bridging equipment of rapid construction of mountain terrain, be specifically related to a kind of novel bridge formation machine of setting a roof beam in place in tunnel and tunnel face of crossing through the tunnel.
Background technology
Further reinforcement and development along with China's infrastructure; The construction of various infrastructure is getting into quick, a sane developing stage; The railway Eleventh Five-Year Plan shows that Chinese Railway has got into the great-leap-forward development stage, especially since the economic crisis; China strengthens the input to infrastructure such as railway, highways, and the railway construction construction will reach unprecedented peak period.Along with railway construction in China strides forward the sustained and rapid development stage; A key issue that will solve earlier railway construction construction party kept man of a noblewoman is like how lower construction cost, and higher efficiency of construction is carried out the railway construction construction; Satisfying growing demand, thereby catch up with the paces of economic development.
At present, in the railway construction work progress, for land occupation not, guarantee the safety of railway; The shared proportion of overhead part on the railway is increasing, and in elevated line, the large concrete boxes beam becomes the vitals on the overhead route as weight support; And because the weight of this large concrete boxes beam is big; Unusual difficulty in transportation and when building overhead railway in the large-tonnage concrete box girder transportation rack device of routine, has the following several kinds of bridge formation machines bridge formation of constructing usually.
1. auxiliary nose girder formula bridge formation machine
Auxiliary nose girder formula bridge formation machine formula bridge formation machine rear support leg rear portion girder has tail outstanding, and the bridge formation machine is got the beam position at the rear support leg rear portion, and Beam transportation vehicle is carried the only traveling on the Beam transportation vehicle track of beam dolly on the back.
2. fixed point is lifted by crane the bridge formation machine
Fixed point lifting bridge formation machine is that Beam transportation vehicle is carried the beam chassis on the back and directly run to the Luo Liang position from Beam transportation vehicle.
3. walking bridge formation machine
Walking bridge formation machine rear support leg rear portion is many supporting leg, tail boom is long.The bridge formation machine need not assist nose girder to carry out via hole, through self supporting leg traveling or convert via hole.
4. integration of transporting and building machine
The integration of transporting and building machine mainly divides main frame and nose girder.Main frame is taken into account the fortune beam and is set a roof beam in place task, and main frame need run to the nose girder top.
And, have the different geological condition because China is vast in territory, to setting a roof beam in place different requirement is arranged all like different places such as Plain, the mountain ridge, hills, plateaus; And with respect to the mountain terrain; Because it is unlike the flat site, need through different operation such as tunnel, climbings, therefore; To the continuous operating mode of mountain terrain bridge tunnel, above-mentioned bridge formation machine has following shortcoming respectively:
1. above-mentioned 1,3 all can't accomplish the hole sets a roof beam in place;
2. above-mentioned 1,2,3 all need disassemble and could pass through the tunnel;
3. 4 above-mentioned efficiencies of construction are very low, and nose girder requires stability high.
And in order to solve the defective of these existing bridge formation machines, the present inventor has proposed a kind of novel bridge formation machine, can overcome these defectives, is suitable for building bridge in the mountain terrain.
Summary of the invention
The object of the present invention is to provide and a kind ofly can and realize the bridge formation machine of setting a roof beam in place in the tunnel face through the tunnel; It can realize setting a roof beam in place in the tunnel face and through the tunnel, effectively take into account the deficiency of above-mentioned several types of bridge formation machines in the continuous location of bridge tunnel according to new construction technology and structure design.
Be to realize above-mentioned purpose, the invention discloses and a kind ofly can and realize the bridge formation machine of setting a roof beam in place in the tunnel face, comprise main frame and nose girder down, it is characterized in that through the tunnel:
Described main frame comprises girder and from the past front end of main beam rear end rear support leg, back launching nose overhead traveling crane, back trolley, preceding trolley, front leg strut, auxiliary traveling supporting leg and front launching nose overhead traveling crane is installed successively; Girder is provided with track, the preceding trolley that orbits, back trolley, front launching nose overhead traveling crane and back launching nose overhead traveling crane;
Described following nose girder comprises following nose girder girder and is positioned at the rear support leg and the front leg strut that is positioned at the front lower place of below thereafter;
Girder is supported on the bridge pier through front leg strut, and rear support leg is supported on the bridge formation face through a running mechanism;
It is characterized in that:
Before trolley, back trolley structure identical, form by big vehicle frame, traversing dolly, reel, assembly pulley, rope guide, balancer, vertical shift drive unit; Described reel 6, assembly pulley, rope guide, balancer all are placed on the traversing dolly; Described traversing dolly is supported on the big vehicle frame, is connected with big vehicle frame through oil cylinder, connects suspender through reel, assembly pulley, wire rope; Suspender is connected with concrete box girder through suspension rod; Described vertical shift drive unit is connected on the big vehicle frame through bolt, and described big vehicle frame is supported on the track at girder top, thereby reaches the accurate location of concrete box girder.
Wherein, Described rear support leg is an O type supporting leg, connects into the O type of a sealing by more piece steel case beam through bolt and hinged-support, and tie-beam links together with girder through bolt, revolution hinge on it; The revolution hinge realizes the revolution before and after the top, and bolt plays fixation.The center tie-beam is two sections collapsible steel case beams that are formed by connecting through bolt and hinged-support; Described collapsible steel case beam top is connected with last tie-beam through bolt and hinged-support; The bottom is connected with following tie-beam through bolt; Described tie-beam down is the ship shaped steel case beam that is connected with running mechanism, and running mechanism adopts the tire traveling.
Wherein, Described back launching nose overhead traveling crane by back launching nose overhead traveling crane girder, herringbone leg, walk cross girders, hanging beam mechanism forms; The foldable steel case beam of described back launching nose overhead traveling crane girder for connecting to form through bolt and hinged-support by more piece steel case beam, its two ends are connected with hanging beam mechanism through hinged-support, and described herringbone leg is made up of two sections steel case beams; Respectively with back launching nose overhead traveling crane girder and walk cross girders and be connected, the described cross girders of walking is supported on the track at girder top through wheel through bolt at its two ends.
Wherein, Described front leg strut top is supported on the girder base track through the wheel of running mechanism; The bottom is supported on the bridge pier through collapsible steel case beam supporting leg, comprises telescopic mast, connects the camber beam of telescopic mast, running mechanism, collapsible steel case beam supporting leg, horizontal tie-beam.
Wherein, described auxiliary traveling supporting leg is made up of last running mechanism, telescopic mast, following running mechanism.The described running mechanism of going up is supported on through wheel on the base track of girder, and described running mechanism down is supported on down through wheel on the track at nose girder top, and described telescopic mast is connected with last running mechanism, following running mechanism through bolt.
Wherein, the front launching nose overhead traveling crane is supported on through wheel on the track of the truss bridge of the nose of girder front end, connects suspender by wire rope, assembly pulley, and suspender is connected with following nose girder through suspension rod.
Wherein, described nose girder cross section down is a rectangle, and its rectangle inboard is provided with waling, diaphragm; Its upper end is provided with walking rails; Its both sides, front end bottom are provided with track, and its front end is provided with hole for hoist, are connected with the front launching nose overhead traveling crane through suspension rod; The rear end is provided with the side hole for hoist, is connected with the back launching nose overhead traveling crane through hanging beam mechanism.
Wherein, described lower nose girder rear support leg top is connected with following nose girder through bolt and hinged-support, and its underpart is provided with support cylinder, and height-adjustable spiral supporting leg is equipped with in described support cylinder bottom.
Wherein, described nose girder front leg strut top down is connected with following nose girder through bolt and hinged-support, and running mechanism is equipped with at its top, and the bottom is provided with support cylinder, and height-adjustable spiral supporting leg is equipped with in described support cylinder bottom.
Wherein, the operation of setting a roof beam in place of bridge formation machine is following:
Step 1: prepare before the frame; The front leg strut of following nose girder, rear support leg are supported on respectively on the bridge pier of preparatory frame case beam; The rear support leg of bridge formation machine is supported on and sets up Liang Mianshang; Front leg strut is supported on the bridge pier of preparatory frame case beam, and its front leg strut is supported on the same bridge pier with the front leg strut of following nose girder, and the auxiliary traveling supporting leg of main frame is unsettled; Beam transportation vehicle carries after concrete beam drives to bridge formation machine rear end along the beam face that has set up, and its track is connected with the track at following nose girder top;
Step 2: preceding carry on the back the beam chassis with after carry the beam chassis on the back and carry concrete box girder down nose girder vertical shift from the Beam transportation vehicle;
Step 3: after concrete box girder arrives assigned address, the preceding trolley concrete box girder of slinging, with after carry the beam chassis on the back and pack to the Luo Liang position, the back trolley concrete box girder of slinging afterwards, front and back are carried the beam chassis on the back and are shifted onto on the Beam transportation vehicle;
Step 4: preceding hanging beam overhead traveling crane, back launching nose overhead traveling crane hang the nose girder of staying respectively; Simultaneously; Following nose girder through shorten, folding before and after supporting leg, and under the effect of front and back hanging beam overhead traveling crane, move ahead, fall to the auxiliary traveling supporting leg of assigned address and tangle down in the middle part of the nose girder; Move on to the assigned address nose girder of slinging down once more after the front launching nose overhead traveling crane unloading, assist the traveling supporting leg to leave down nose girder;
Step 5: following nose girder is after putting in place under the lifting of front and back nose girder overhead traveling crane, and supporting leg is supported on the two adjacent bridge piers before and after it, and concrete box girder is accurately fallen on the bridge pier under the trolley effect of front and back;
Step 6: after concrete box girder is fallen the position, take off suspender; After treating that mortar solidifies, back launching nose overhead traveling crane, front and back trolley are retreated to main beam rear end, the front launching nose overhead traveling crane retreats to bridge of the nose rear end; Auxiliary afterwards traveling supporting leg props up on following nose girder top rail, packs up bridge formation machine front leg strut, props rear support leg, and the bridge formation machine is crossed and striden under auxiliary traveling supporting leg and the common promotion of rear support leg;
Step 7: after the bridge formation machine was accomplished and striden, successively prop front leg strut, pack up auxiliary traveling supporting leg, prop setting up of rear support leg next concrete box of preparation.
Through said structure, the operation operation that can realize setting a roof beam in place in the mountain terrain of setting a roof beam in place of bridge formation machine of the present invention and bridge formation is during through the tunnel; Can shrink and fold a plurality of parts; Make the bridge formation machine easily through the tunnel, can not receive the restriction of tunnel size, and when building bridge; Efficiency of construction is high, stable operation.
Description of drawings
Fig. 1 according to the inventionly can and realize the structural representation of the bridge formation machine of setting a roof beam in place in the tunnel face through the tunnel.
Fig. 2 is the structural representation of rear support leg.
Fig. 3 is that the back launching nose overhead traveling crane is on girder and hang down nose girder sketch map.
Fig. 4 is a trolley at the girder beam sheet sketch map of hanging oneself.
Fig. 5 is that front leg strut props up the sketch map on bridge pier.
Fig. 6 is that auxiliary traveling supporting leg props up sketch map on bridge pier.
Fig. 7 is that preceding hanging beam overhead traveling crane is hung oneself at the girder bridge of the nose and removed the nose girder sketch map.
Fig. 8 is that nose girder props up on bridge pier down, and auxiliary traveling supporting leg props up sketch map above that.
Fig. 9, Figure 10 are respectively the sketch mapes of the following forward and backward supporting leg of nose girder.
The specific embodiment
With reference to Fig. 1, of the present invention can be through the tunnel and realize that the bridge formation machine set a roof beam in place in the tunnel face mainly comprise main frame and nose girder 10 down.Described main frame comprises girder 4 and (before and after so-called is before being with the direction of setting a roof beam in place, otherwise is the back) is equipped with rear support leg 1, back launching nose overhead traveling crane 2, back trolley 3, preceding trolley 5, front leg strut 8, auxiliary traveling supporting leg 6, front launching nose overhead traveling crane 7 successively from girder 4 rear ends toward front end.Girder 4 is provided with track, trolley 5, back trolley 6, front launching nose overhead traveling crane 7 and back launching nose overhead traveling crane 2 before orbiting.Described following nose girder 10 comprises following nose girder girder and is positioned at the rear support leg 11 and the front leg strut 9 that is positioned at the front lower place of below thereafter.During bridge formation work, girder 4 is supported on the bridge pier through front leg strut 8, and rear support leg 1 is supported on the bridge formation face through its running mechanism 17.
Front leg strut 9 with reference to the described nose girder down of Figure 10 can be along nose girder 10 vertical travelings, collapsible, scalable down, to satisfy the support demand of different beam types (24m, 32m beam).
Collapsible, scalable with reference to the described lower nose girder rear support leg of Fig. 9 11, satisfied setting up of last Kong Liang, abutment beam.
With reference to Fig. 1, shown in Figure 2, described rear support leg 1 is " O " type supporting leg, is connected into " O " type of a sealing through bolt and hinged-support by more piece steel case beam.Tie-beam 15 links together with two longitudinal beams of girder 4 through spiral shell, revolution hinge on it; The revolution hinge realizes the revolution before and after the top; Bolt plays fixation; Center tie-beam 16 is two sections collapsible steel case beams that are formed by connecting through bolt and hinged-support, and described collapsible steel case beam 16 tops are connected 15 through bolt and hinged-support with last tie-beam, and the bottom is connected with following tie-beam 18 through bolt.Described tie-beam 18 down is for being connected with the ship shaped steel case beam of running mechanism 17.Described running mechanism 17 is the self-supporting wheels traveling that drives, and adopts the tire traveling.。Through removing running mechanism 17, steel case beam 16 is folded, last tie-beam 15 relatively rotates with girder 4, thereby can reduce the sectional dimension of rear support leg, reaches the purpose of bridge formation machine of the present invention through the tunnel.
With reference to Fig. 1, shown in Figure 3, described back launching nose overhead traveling crane 2 by back launching nose overhead traveling crane girder 20, " herringbone " leg 21, walk cross girders 22, hanging beam mechanism 23 forms.The foldable steel case beam of described back launching nose overhead traveling crane girder 20 for connecting to form through bolt and hinged-support by more piece steel case beam.Its two ends are connected with hanging beam mechanism 23 through hinged-support.Described " herringbone " leg 21 is made up of two sections steel case beams, its two ends through bolt respectively with back launching nose overhead traveling crane girder 20 and walk cross girders 22 and be connected.The described cross girders 22 of walking is supported on the track at girder 4 tops through wheel.Before main frame was crossed and striden, back launching nose overhead traveling crane 2 was walked cross girders 22 driving lower edge girders 4 at it and is vertically moved through hanging beam mechanism 23 nose girder 10 of slinging down, cooperated with front launching nose overhead traveling crane 7 to hang down nose girder 10 and cross and stride.When main frame was crossed the tunnel, back launching nose overhead traveling crane 2 was through the girder 20 of folding back launching nose overhead traveling crane, and then shortening hanging beam mechanism 23, can reduce sectional dimension, reaches the purpose of bridge formation machine of the present invention through the tunnel.
With reference to Fig. 1, shown in Figure 4, described before trolley 5, back trolley 3 structures identical, form by big vehicle frame 24, traversing dolly 25, reel 26, assembly pulley 27, rope guide 28, balancer 30, vertical shift drive unit 29.Described reel 26, assembly pulley 27, rope guide 28, balancer 30 all are placed on the traversing dolly 25.Described traversing dolly 25 is supported on the big vehicle frame 24 through the movement device, is connected with big vehicle frame 24 through oil cylinder, connects suspender 32 through reel 26, assembly pulley 27, wire rope 31, and suspender is connected with concrete box girder 14 through suspension rod 33.Described vertical shift drive unit 29 is connected on the big vehicle frame 24 through bolt.Described big vehicle frame 24 is supported on the track at girder 4 tops through the movement device.When setting a roof beam in place work, preceding trolley 5, back trolley 3 can vertically move along girder 4 through vertical shift drive unit 29, laterally move through traversing dolly 25 and accurately locate to reach concrete box girder 14.
Two reels 26 of trolley 5 can work independently through balancer 30 before described, but two reels 26 of back trolley 3 reach the purpose of 4 liftings of whole jacking system, 3 balances through balancer 30 synchronous workings.
With reference to Fig. 1, shown in Figure 5; Described front leg strut 8 tops are supported on girder 4 base track through the wheel of running mechanism 35; The bottom is supported on the bridge pier through collapsible steel case beam supporting leg 37; Comprise telescopic mast 36, connect the camber beam 39 of telescopic mast 36, running mechanism 35, collapsible steel case beam supporting leg 37, horizontal tie-beam 38.When setting a roof beam in place, front leg strut 8 can be walked Xingqi running mechanism 35 through shortening its telescopic mast 36, reaches the support demand of setting up different beam types (24m, 32m beam).
With reference to Fig. 1, shown in Figure 6, described auxiliary traveling supporting leg 6 is by last running mechanism 40, telescopic mast 41, running mechanism 42 is formed down.The described running mechanism 40 of going up is supported on the base track of girder 4 through wheel.Described running mechanism 42 down is supported on down on the track at nose girder 10 tops through wheel.Described telescopic mast 41 is connected with last running mechanism 40, time running mechanism 42 through bolt.When setting a roof beam in place, auxiliary traveling supporting leg 6 reaches the effect that does not stress when setting a roof beam in place through shortening telescopic mast 41.During via hole, auxiliary traveling supporting leg 6 reaches the effect of supporting main frame through shortening telescopic mast 41.
With reference to Fig. 1, shown in Figure 7, front launching nose overhead traveling crane 7 is supported on through wheel on the track of the truss bridge of the nose of girder 4 front ends, connects suspender 45 by wire rope, assembly pulley, and suspender 45 is connected with following nose girder 10 through suspension rod.Before the via hole, front launching nose overhead traveling crane 7 cooperates with back hanging beam overhead traveling crane 2 through suspender 45 nose girder 10 of slinging down, hangs down nose girder 10 mistakes and strides.
With reference to Fig. 1, Fig. 8, Fig. 9, shown in Figure 10, described nose girder 10 cross sections down are rectangle, and its rectangle inboard is provided with waling, diaphragm; Its upper end is provided with walking rails; Its both sides, front end bottom are provided with track, and its front end is provided with hole for hoist, are connected with front launching nose overhead traveling crane 7 through suspension rod 45; The rear end is provided with the side hole for hoist, is connected with back launching nose overhead traveling crane 2 through hanging beam mechanism 23.
Described lower nose girder rear support leg 11 tops are connected with following nose girder 10 through bolt and hinged-support, and its underpart is provided with support cylinder, and height-adjustable spiral supporting leg 45 is equipped with in described support cylinder bottom.
Described nose girder front leg strut 9 tops down are connected with following nose girder 10 through bolt and hinged-support, and running mechanism 43 is equipped with at its top, and the bottom is provided with support cylinder, and height-adjustable spiral supporting leg 45 is equipped with in described support cylinder bottom.
Main frame is crossed when striding, and following nose girder 10 is propped auxiliary traveling supporting leg 6 through the track at its top.Following nose girder 10 is through shortening, fold its front leg strut 9, rear support leg 11; The hanging descend and strode of front launching nose overhead traveling crane 7, back hanging beam overhead traveling crane 2, cross stride after through extending, launch its front leg strut 9, rear support leg 11, prop up on bridge pier; Same nose girder front leg strut 9 at present; Under the effect of its running mechanism 43, can vertically move along following nose girder 10, to satisfy the support demand of (24m, 32m beam).When setting a roof beam in place, carry beam chassis 13 before the preceding Beam transportation vehicle on the back and be supported on down on the track at nose girder 10 tops, and can vertically move along following nose girder 10 through the movement device.
The applicable following condition of work of tunnel bridge formation machine of crossing of the present invention:
In the regional operation that links to each other of bridge tunnel, the bridge formation machine can pass double track tunnel under the packing of Beam transportation vehicle, and can set a roof beam in place during import and export 4m apart from the tunnel at abutment.
Type bridges such as continuous beam (24m, 32m), compound beam and roadbed through and set a roof beam in place.
Operation maximum gradient :≤20 ‰.
Working curve radius: >=2000m.
Operating altitude height :≤2000m.
Operating ambient temperature :-20～+ 50 ℃.
Working environment maximum wind power: 6 grades of duties; 12 grades of off working states.
Of the present inventionly can and realize that the bridge formation frame beam process of setting a roof beam in place the tunnel face is following through the tunnel: equipment is carried out and is set up preparation; The front leg strut 9 of nose girder 10, rear support leg 11 are supported on respectively on the bridge pier of preparatory frame case beam under the bridge formation machine; The rear support leg 1 of bridge formation machine is supported on and sets up Liang Mianshang (oil cylinder withdrawal; Stressed by sleeper), front leg strut 8 is supported on the bridge pier of preparatory frame case beam, and its front leg strut 8 is supported on the same bridge pier with the front leg strut 9 of following nose girder 10.The auxiliary traveling supporting leg of main frame is unsettled 6 this moments.Beam transportation vehicle 12 carries after concrete beam 14 drives to bridge formation machine rear end (being the left end of Fig. 1) along the beam face that has set up; Its track is connected with the track at following nose girder 10 tops; This moment, the track of Beam transportation vehicle 12 was in same horizontal plane (the front and back supporting leg through regulating down nose girder 10 satisfies) with following nose girder track, and was on the same straight line.Before carrying beam chassis 13 afterwards on the back carries concrete beam 14 and directly drives to down nose girder 10 assigned addresses; Before the dolly 5 beam sheet of slinging; With after carry beam chassis 46 concrete beam 14 of slinging on the back and move ahead, trolley 3, back trolley 5 lift by crane concrete beam 14 simultaneously before the back that puts in place.Afterwards, the forward and backward beam chassis of carrying on the back withdraws from down nose girder 10, and Beam transportation vehicle 12 is given an encore and packed next concrete box girder.Preceding hanging beam overhead traveling crane 7, back launching nose overhead traveling crane 2 hang the nose girder 10 of staying respectively, and simultaneously, following nose girder 10 passes through to shorten, folding front and back supporting leg, and under the effect of front and back hanging beam overhead traveling crane, is forwarded to next and steps up.After treating that whole following nose girder 10 shifts out, the trolley effect drops on the bridge pier concrete box girder 14 in front and back.Set a roof beam in place finish after; The auxiliary traveling supporting leg 6 of bridge formation machine is supported on down on the top rail of nose girder 10, and rear support leg 1 supports oil cylinder, takes sleeper away; Main frame is realized the vertical shift via hole under auxiliary traveling supporting leg 6 and rear support leg 1 acting in conjunction, props front leg strut 8 after putting in place and just can descend setting up of a slice case beam.
Concrete bridge formation machine is crossed the tunnel and is set a roof beam in place as follows:
Step 1: the bridge formation machine is carried out and is set up preparation; The front leg strut 9 of following nose girder 10, rear support leg 11 are supported on respectively on the bridge pier of preparatory frame case beam 14; The rear support leg 1 of bridge formation machine is supported on and sets up Liang Mianshang (oil cylinder withdrawal; Stressed by sleeper), front leg strut 8 is supported on the bridge pier of preparatory frame case beam, and its front leg strut 8 is supported on the same bridge pier with the front leg strut 9 of following nose girder 10.The auxiliary traveling supporting leg of main frame is unsettled 6 this moments.Beam transportation vehicle 12 carries after concrete beam 14 drives to bridge formation machine rear end (being the left end of Fig. 1) along the beam face that has set up, and its track is connected with the track at following nose girder 10 tops.With reference to shown in Figure 11.
Step 2: preceding carry on the back beam chassis 13 with after carry beam chassis 46 on the back and carry concrete box girder 14 down nose girder vertical shift from the Beam transportation vehicle.With reference to shown in Figure 12.
Step 3: after concrete box girder 14 arrives assigned addresses, preceding trolley 5 concrete box girder 14 of slinging, with after carry beam chassis 46 on the back and pack to the Luo Liang position, the back trolley 3 beam sheet 14 of slinging afterwards, front and back are carried the beam chassis on the back and are shifted onto on the Beam transportation vehicle.With reference to Figure 13, shown in 14.
Step 4: Beam transportation vehicle 12 is given an encore and is got beam.Preceding hanging beam overhead traveling crane 7, back launching nose overhead traveling crane 2 hang the nose girder 10 of staying respectively; Simultaneously; Following nose girder 10 through shorten, folding before and after supporting leg, and under the effect of front and back hanging beam overhead traveling crane, move ahead, fall to the auxiliary traveling supporting leg 6 of assigned address and tangle down in the middle part of the nose girder 10; Move on to the assigned address nose girder 10 of slinging down once more after front launching nose overhead traveling crane 7 unloading, assist traveling supporting leg 6 to leave down nose girder 10.With reference to Figure 15, shown in 16.
Step 5: following nose girder 10 is after putting in place under the lifting of front and back nose girder overhead traveling crane, and supporting leg is supported on the two adjacent bridge piers before and after it.Concrete box girder 14 is accurately fallen on the bridge pier under the trolley effect of front and back.With reference to shown in Figure 17.
Step 6: after concrete box girder 14 is fallen the position, take off suspender.After treating that its mortar solidifies, back launching nose overhead traveling crane 2, front and back trolley are retreated to girder 4 rear ends, front launching nose overhead traveling crane 7 retreats to bridge of the nose rear end.6 of auxiliary afterwards traveling supporting legs are packed up bridge formation machine front leg strut 8 on following nose girder 10 top rail, prop rear support leg 1, and the bridge formation machine is crossed and striden under auxiliary traveling supporting leg 6 and rear support leg 1 promote jointly.With reference to shown in Figure 180.
Step 7: after the bridge formation machine was accomplished and striden, successively prop front leg strut 8, pack up auxiliary traveling supporting leg 6, prop setting up of rear support leg 1 next concrete box girder 14 of preparation.
Through bridge formation machine of the present invention, operation can be realized setting a roof beam in place in the mountain terrain, during through the tunnel; Can shrink and fold a plurality of parts, make the bridge formation machine, can not receive the restriction of tunnel size easily through the tunnel; And when building bridge, efficiency of construction is high, stable operation.
Claims (10)
1. the bridge formation machine that ability is set a roof beam in place through tunnel and realization tunnel face comprises main frame and following nose girder, it is characterized in that:
Described main frame comprises girder and from the past front end of main beam rear end rear support leg, back launching nose overhead traveling crane, back trolley, preceding trolley, front leg strut, auxiliary traveling supporting leg and front launching nose overhead traveling crane is installed successively; Girder is provided with track; Preceding trolley, back trolley, front launching nose overhead traveling crane and back launching nose overhead traveling crane orbit
Described down nose girder comprises down the nose girder girder and is positioned at the rear support leg and the front leg strut that is positioned at the front lower place of below thereafter, and girder is supported on the bridge pier through front leg strut, and rear support leg is supported on the bridge formation face through a running mechanism;
It is characterized in that:
Before trolley, back trolley structure identical, form by big vehicle frame, traversing dolly, reel, assembly pulley, rope guide, balancer, vertical shift drive unit; Described reel, assembly pulley, rope guide, balancer all are placed on the traversing dolly; Described traversing dolly is supported on the big vehicle frame; Be connected with big vehicle frame through oil cylinder, connect suspender through reel, assembly pulley, wire rope, suspender is connected with concrete box girder through suspension rod; Described vertical shift drive unit is connected on the big vehicle frame through bolt, and described big vehicle frame is supported on the track at girder top.
2. bridge formation machine according to claim 1 is characterized in that, described rear support leg is an O type supporting leg; Connect into the O type of a sealing by more piece steel case beam through bolt and hinged-support, tie-beam links together with girder through bolt, revolution hinge on it, and the revolution hinge realizes the revolution before and after the top; Bolt plays fixation; The center tie-beam is two sections collapsible steel case beams that are formed by connecting through bolt and hinged-support, and described collapsible steel case beam top is connected with last tie-beam through bolt and hinged-support, and the bottom is connected with following tie-beam through bolt; Described tie-beam down is the ship shaped steel case beam that is connected with running mechanism, and running mechanism adopts the tire traveling.
3. bridge formation machine according to claim 1; It is characterized in that; Described back launching nose overhead traveling crane by back launching nose overhead traveling crane girder, herringbone leg, walk cross girders, hanging beam mechanism forms; The foldable steel case beam of described back launching nose overhead traveling crane girder for connecting to form through bolt and hinged-support by more piece steel case beam, its two ends are connected with hanging beam mechanism through hinged-support, and described herringbone leg is made up of two sections steel case beams; Respectively with back launching nose overhead traveling crane girder and walk cross girders and be connected, the described cross girders of walking is supported on the track at girder top through wheel through bolt at its two ends.
4. bridge formation machine according to claim 1; It is characterized in that; Described front leg strut top is supported on the girder base track through the wheel of running mechanism; The bottom is supported on the bridge pier through collapsible steel case beam supporting leg, comprises telescopic mast, connects the camber beam of telescopic mast, running mechanism, collapsible steel case beam supporting leg, horizontal tie-beam.
5. bridge formation machine according to claim 1; It is characterized in that; Described auxiliary traveling supporting leg is made up of last running mechanism, telescopic mast, following running mechanism; The described running mechanism of going up is supported on through wheel on the base track of girder, and described running mechanism down is supported on down through wheel on the track at nose girder top, and described telescopic mast is connected with last running mechanism, following running mechanism through bolt.
6. bridge formation machine according to claim 1 is characterized in that, the front launching nose overhead traveling crane is supported on through wheel on the track of the truss bridge of the nose of girder front end, connects suspender by wire rope, assembly pulley, and suspender is connected with following nose girder through suspension rod.
7. bridge formation machine according to claim 1 is characterized in that, described nose girder cross section down is a rectangle; Its rectangle inboard is provided with waling, diaphragm, and its upper end is provided with walking rails, and its both sides, front end bottom are provided with track; Its front end is provided with hole for hoist; Be connected with the front launching nose overhead traveling crane through suspension rod, the rear end is provided with the side hole for hoist, is connected with the back launching nose overhead traveling crane through hanging beam mechanism.
8. bridge formation machine according to claim 1 is characterized in that, described lower nose girder rear support leg top is connected with following nose girder through bolt and hinged-support, and its underpart is provided with support cylinder, and height-adjustable spiral supporting leg is equipped with in described support cylinder bottom.
9. bridge formation machine according to claim 1; It is characterized in that described nose girder front leg strut top down is connected with following nose girder through bolt and hinged-support, running mechanism is equipped with at its top; The bottom is provided with support cylinder, and height-adjustable spiral supporting leg is equipped with in described support cylinder bottom.
10. the operation of setting a roof beam in place according to the described bridge formation machine of claim 1 to 9 is following:
Step 1: prepare before the frame; The front leg strut of following nose girder, rear support leg are supported on respectively on the bridge pier of preparatory frame case beam; The rear support leg of bridge formation machine is supported on and sets up Liang Mianshang; Front leg strut is supported on the bridge pier of preparatory frame case beam, and its front leg strut is supported on the same bridge pier with the front leg strut of following nose girder, and the auxiliary traveling supporting leg of main frame is unsettled; Beam transportation vehicle carries after concrete beam drives to bridge formation machine rear end along the beam face that has set up, and its track is connected with the track at following nose girder top;
Step 2: preceding carry on the back the beam chassis with after carry the beam chassis on the back and carry concrete box girder down nose girder vertical shift from the Beam transportation vehicle;
Step 3: after concrete box girder arrives assigned address, the preceding trolley concrete box girder of slinging, with after carry the beam chassis on the back and pack to the Luo Liang position, the back trolley concrete box girder of slinging afterwards, front and back are carried the beam chassis on the back and are shifted onto on the Beam transportation vehicle;
Step 4: preceding hanging beam overhead traveling crane, back launching nose overhead traveling crane hang the nose girder of staying respectively; Simultaneously; Following nose girder through shorten, folding before and after supporting leg, and under the effect of front and back hanging beam overhead traveling crane, move ahead, fall to the auxiliary traveling supporting leg of assigned address and tangle down in the middle part of the nose girder; Move on to the assigned address nose girder of slinging down once more after the front launching nose overhead traveling crane unloading, assist the traveling supporting leg to leave down nose girder;
Step 5: following nose girder is after putting in place under the lifting of front and back nose girder overhead traveling crane, and supporting leg is supported on the two adjacent bridge piers before and after it, and concrete box girder is accurately fallen on the bridge pier under the trolley effect of front and back;
Step 6: after concrete box girder is fallen the position, take off suspender; After treating that mortar solidifies, back launching nose overhead traveling crane, front and back trolley are retreated to main beam rear end, the front launching nose overhead traveling crane retreats to bridge of the nose rear end; Auxiliary afterwards traveling supporting leg props up on following nose girder top rail, packs up bridge formation machine front leg strut, props rear support leg, and the bridge formation machine is crossed and striden under auxiliary traveling supporting leg and the common promotion of rear support leg;
Step 7: after the bridge formation machine was accomplished and striden, successively prop front leg strut, pack up auxiliary traveling supporting leg, prop setting up of rear support leg next concrete box of preparation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010101957163A CN101851898B (en) | 2010-06-09 | 2010-06-09 | Bridge girder erection machine capable of passing through tunnel and realizing girder erection and bridging process thereof |
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| CN2010101957163A CN101851898B (en) | 2010-06-09 | 2010-06-09 | Bridge girder erection machine capable of passing through tunnel and realizing girder erection and bridging process thereof |
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| CN101851898B true CN101851898B (en) | 2012-04-11 |
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| CN115094772A (en) * | 2022-07-21 | 2022-09-23 | 中铁十四局集团青岛工程有限公司 | Tunnel-passing transfer system and tunnel-passing transfer method of high-speed rail bridge erecting machine |
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Owner name: CHINA RAILWAY ENGINEERING MACHINERY RESEARCH + DES Effective date: 20150521 |
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Effective date of registration: 20150521 Address after: 430066, 45 East Main Street, Wuchang District, Hubei, Wuhan Patentee after: China Railway Science & Industry Group Co., Ltd. Patentee after: China's Railroad Engineering Machine Research Design Institute Co., Ltd. Address before: 430066, 45 East Main Street, Wuchang District, Hubei, Wuhan Patentee before: China Railway Science & Industry Group Co., Ltd. |