CN101736696A - Highway-railway dual-purpose box-shaped double-beam T-shaped beam bridge girder erection machine - Google Patents
Highway-railway dual-purpose box-shaped double-beam T-shaped beam bridge girder erection machine Download PDFInfo
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- CN101736696A CN101736696A CN200910227415A CN200910227415A CN101736696A CN 101736696 A CN101736696 A CN 101736696A CN 200910227415 A CN200910227415 A CN 200910227415A CN 200910227415 A CN200910227415 A CN 200910227415A CN 101736696 A CN101736696 A CN 101736696A
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Abstract
The invention relates to a highway-railway dual-purpose box-shaped double-beam T-shaped beam bridge girder erection machine, comprising a rear ground jack (1), a middle ground jack (2), a front ground jack (3), an auxiliary ground jack (4), a dual-main beam (5), a front and rear hanging beam trolley (6), an electric appliance and operating system (7), a front and middle ground jack carrier roller (8) and a hydraulic system (9). The bridge girder erection machine has strong adaptability to the technical characteristics of bridges and circuits, thereby having wide popularization and application value. The bridge girder erection machine is suitable for erecting highway T-shape beams and is also suitable for railway T-shape beams.
Description
Technical field
The present invention relates to a kind of bridge support equipment, particularly a kind of highway-railway dual-purpose box-shaped double-beam T-shaped beam bridge girder erection machine that is applicable to integral erection T shape prestressed concrete simply supported beam.
Background technology
Up to now, do not see in the world to have and to be applicable to that highway bridge can be applicable to the combined tee girder bridge formation machine of railroad bridge integral erection again.And the domestic preliminary use experience that the combined tee girder bridge formation of single-beam formula machine has been arranged, but do not see have highway-railway dual-purpose box-shaped double-beam T-shaped beam bridge girder erection machine to deliver.
There is following shortcoming in the combined tee girder bridge formation of domestic existing single-beam formula machine at present:
1) bridge formation machine complete machine height is excessive, and itself can't reduce.Must carry out in the following headroom of kingpost baseplate when reason is the operation of single beam girder erecting machine feeding beam hanging beam, thereby the girder relative elevation can only up raise.The complete machine height is excessive, center of gravity height then, and lateral stability is bad, and wind loading rating is poor.This is called structural weakness, as do not change form of structure then this weakness also just have no way of overcoming.
2) same because the cause of structural weakness, single beam girder erecting machine is because middle supporting leg framework headroom is obstructed and structural difficulties that traversing beam mechanism is installed on single girder, make when frame side bar operating mode, aerial traversing beam can not one-time-reach-place on the machine, and intermittently relay-type ground repetitive operation, thereby traversing scope can only reach ± 1.1m, so can not be used to set up the railway speed increase tee girder.
3) present existing single beam girder erecting machine does not really solve the difficult problem that the little curve of R=300m is set a roof beam in place.
Summary of the invention
Purpose of the present invention provides a kind of highway-railway dual-purpose box-shaped double-beam T-shaped beam bridge girder erection machine at existing weak point in the above-mentioned prior art just.Bridge formation machine of the present invention is strong to the technical characterictic compliance of bridge and circuit, has wide popularization and application and is worth, and the present invention both had been applicable to setting up of highway tee girder, was applicable to setting up of railway tee girder again.
Purpose of the present invention can realize by following technique measures:
Highway-railway dual-purpose box-shaped double-beam T-shaped beam bridge girder erection machine of the present invention comprises rear support leg, middle supporting leg, front leg strut, auxilliary supporting leg, two girders, forward and backward hanging beam dolly, electric and control system, preceding, middle supporting leg carrying roller and hydraulic system;
A, described rear support leg by about three joint cover pillar columns, go up horizontal-associate beam, lower transverse beam and be connected about the bent structures formed jointly of horizontal-associate bar between three joint cover pillar columns; A pair of doing wherein is housed between top rail and the first horizontal-associate bar below it sticks up the vertical push cylinder of using of leg, between the second horizontal-associate bar and the 3rd horizontal-associate bar, be equipped with respectively to be used to drive between the 3rd horizontal-associate bar and the lower transverse beam and respectively save upper strata jacking cylinder and the lower floor's jacking cylinder that sleeve column is made stretching motion; The upper end of left and right pillar is connected with two girder lower covers by the otic placode free bearing respectively;
B, described in supporting leg comprise traversing chassis, be installed in traversing chassis top and can make the last pivoted frame of plane rotation motion with respect to traversing chassis, and be fixedly mounted on the side bar of pivoted frame both sides about cover pillar column and be used to drive about overlap the jacking cylinder that the pillar column is made stretching motion; The left and right pillar upper end is connected by constituting the tumbling-type supporting between two box girders of carrying roller and bridge formation machine;
C, described front leg strut by about three joint cover pillar columns, go up horizontal-associate beam, lower transverse beam and be connected about the bent structures formed jointly of horizontal-associate bar between three joint cover pillar columns; Wherein, between the first horizontal-associate bar and the second horizontal-associate bar, between the second horizontal-associate bar and lower transverse beam, be equipped with respectively to be used to drive and respectively save upper strata oil cylinder and the lower floor's oil cylinder that sleeve column is made stretching motion; Described lower transverse beam is being bearing on the traversing chassis with respect to the frame mode that traversing chassis is done plane rotation motion; The described horizontal-associate beam upper end of going up is connected by constituting the tumbling-type supporting between two box girders of carrying roller and bridge formation machine;
D, described auxilliary supporting leg are the single columns that is made of three-section type pipe sleeve column, and suspension column is slabbed construction, are located at side under two girder front end horizontal-associate beams, between connect with ball pivot; And between the first segment pipe sleeve column and the second pitch circle pipe box post, be respectively arranged with between the second pitch circle pipe box post and the 3rd pitch circle pipe box post and be used to drive upper cylinder and the following oil cylinder that each pitch circle pipe box post is made stretching motion;
E, two girder are made up of two steel case beams that be arranged in parallel, and two ends are affixed with the horizontal-associate beam, constitute a plane rectangular frame structure; Below two girders, be provided with the Xia Erliang of the gear changing group vertical shift of the carrying roller that is provided with each supporting leg top; Above two girders, be equipped with the orbit of forward and backward hanging beam dolly.
Described forward and backward hanging beam dolly described in the present invention is formed by being across vertical shift chassis on two girder long rails and the traversing dolly that is bearing on the vertical shift chassis, on the traversing dolly hoisting system is installed; Traversing dolly is bearing in the vertical shift chassis by the cross track that is laid on the vertical shift chassis vehicle frame on two crossbeams.
The carrying roller that is separately positioned on described forward and backward supporting leg upper end among the present invention is divided into upper strata and lower floor, and the upper strata is equipped with the active roller group and comes the two girders of rest, and supporting leg and front leg strut during initiatively gear changing group hangs; Lower floor is a base, and bed plate props up pad and connects on the respective leg top and with flange bolt.
Hydraulic system described in the present invention comprises rear support leg, middle supporting leg, front leg strut and the auxilliary whole hydraulic jacks of supporting leg, hydraulic pressure facility and pumping plant; The creation point of hydraulic system is the whole supporting leg more piece cover pillar column design of close fit and adopts double-deck telescopic oil cylinder configuration and layering to control principle step by step, each supporting leg adjusted in big altitude range realized in full fluid power mode.
Concrete structure characteristics of the present invention are as follows:
1) changes form of structure, single girder by prior art becomes two girders, thereby need not to carry out when bridge formation machine feeding beam and hanging beam operation in the following headroom of kingpost baseplate, but the headroom between two girders is carried out, so the comparable single girder person of complete machine height reduces the height that is at least half girder, for example set up span and be 40m, beam and heavily can reach 1.3m for girder half height of the single beam girder erecting machine of 170t.So the complete machine height of double beam girder erecting machine is obviously much lower than single beam girder erecting machine.Thereby center of gravity reduces lateral stability raising and wind loading rating reinforcement.
2) same, because single main beam structure becomes two main beam structures, make that the layout of traversing beam mechanism is very convenient on the machine.So when frame side bar operating mode, aerial traversing beam can one-time-reach-place on the machine, accomplishs without any letup, work efficiency and operational security also all are enhanced, and traversing scope can be brought up to ± 1.3m, so can set up the railway speed increase tee girder.
3) the present invention has solved the problem of setting a roof beam in place on the little curve of R=300m conscientiously, and the technical level of China's bridging machine for both highway and railway is stepped on a new stage.
The present invention compared with prior art has following beneficial effect:
1) need not to carry out when this bridge formation machine feeding beam and hanging beam operation, but the headroom between two girders carries out, so the comparable single girder person of complete machine height is reduced to the height of not a half girder in the following headroom of kingpost baseplate.For example set up span and be 40m, beam and heavily can reach 1.3m for girder half height of the single beam girder erecting machine of 170t.So complete machine height of the present invention is more much lower than single beam girder erecting machine under the condition that the circuit maximum longitudinal grade equates.Thereby center of gravity reduces lateral stability raising, wind loading rating reinforcement.
2) because this bridge formation machine adopts two main beam structures, therefore can be easily aerial traversing beam mechanism on the machine be become the traversing trolley body of self-propelled wheel track, so both enlarged traversing coverage, guarantee that but side bar sets up one-time-reach-place, and improved simplicity, reliability and the operation agility of transverse-moving mechanism.Traversing coverage can realize setting up of railway speed increase tee girder after improving, and the single-beam formula then can not this beam of frame because its traversing amount is less.
3) this bridge formation machine has been owing to adopted several mechanisms such as neoteric front leg strut, middle supporting leg and carrying roller, makes it can realize really that facility sets up the little curved bridge of R 〉=300m.This not only bridging machine for both highway and railway also be the major progress of all bridge formation machine technologies.
4) all the big Height Adjustment of supporting legs adopts the double-layer hydraulic jacking cylinder without exception, has exempted artificial mounting or dismounting, the operation of plugging into, and has improved mechanization and automatization level that bridge formation frame beam is constructed greatly.
5) rear support leg has the function that rigid leg and single hinge flexible leg are changed mutually, and the machine vertical shift via hole geometrical stability in when falling the leg that can guarantee like this to build bridge sticks up the leg-training energy in the time of guaranteeing feeding beam again.
Description of drawings
Fig. 1 is an overall construction drawing of the present invention.Fig. 1-1 is a rear support leg present position profile among Fig. 1.Fig. 1-2 is a middle supporting leg present position profile among Fig. 1.Fig. 1-3 is a front leg strut present position profile among Fig. 1.Fig. 1-4 is an auxilliary supporting leg present position profile among Fig. 1.
Sequence number among the figure: 1 is rear support leg, two otic placode free bearings of 1c, and 2 is middle supporting leg, 3 is front leg strut, 4 is auxilliary supporting leg, and 5 is two girders, and ear beam under the 5b, 5c and 5d are respectively two ends horizontal-associate beam, the 5e single track, 6 is forward and backward hanging beam dolly, 7 is electric, control system, 8 is middle supporting leg and front leg strut carrying roller, and 9 is hydraulic system, 1a three joint cover pillar columns, the 1b lower transverse beam, 1c otic placode free bearing, the vertical push cylinder of 1d, 1e upper strata jacking cylinder, 1f lower floor jacking cylinder, the last horizontal-associate beam of 1g.
Fig. 2 is middle leg structure front view.Fig. 2-1 is the lateral view of Fig. 2.Fig. 2-2 for the last pivoted frame in the middle supporting leg and be fixedly mounted on the side bar of pivoted frame both sides about overlap the vertical view of pillar column with respect to 45 ° of plane rotation motion states of traversing chassis work.
The traversing chassis of sequence number among the figure: 2a, the last pivoted frame of 2b, 2c hinge axle, 2d traverse rod, the 2g axle of having strong market potential, two cover pillar columns about 2h jacking cylinder 2i, 8a upper strata, 8b lower floor, 8d roller set, the three-in-one reductor of 8e, 8f gear changing group, the three-in-one motor of 8g.
Fig. 3 is the front leg strut structural front view.Fig. 3-1 is the lateral view of Fig. 3.Fig. 3-2 is the state diagram that lower transverse beam 3b does 45 ° of plane rotation motions in the front leg strut with respect to traversing chassis 3a.
The traversing chassis of sequence number among the figure: 3a, 3b lower transverse beam, 3c hinge axle, three joint cover pillar columns about 3d, the last horizontal-associate beam of 3e, 3f lower floor oil cylinder, 3g upper strata oil cylinder, four diagonal braces of 3h, 3i horizontal-associate bar, 3j track, 3k slotted hole bolt, 8b lower floor, 8a upper strata, 8d roller set.
Fig. 4 is auxilliary leg structure front view.Fig. 4-1 is that the A of Fig. 4 is to view.
Sequence number among the figure: 4a three-section type pipe sleeve column, 4b ball pivot, 4c upper strata oil cylinder, 4d lower floor oil cylinder.
Fig. 5 is a hanging beam vehicle structure front view.Fig. 5-1 is the lateral view of Fig. 5.Fig. 5-2 is the vertical view of Fig. 5.
The traversing dolly of sequence number among the figure: 6a, 6b vertical shift chassis, 6c hoisting system.
Plan view when expression bridge formation frame shown in Figure 6 is established 45 ° of skew bridge operating modes, it has reflected the relation of the plan-position between bridge, circuit, river and the bridge formation machine in this operating mode.More detailed description will relate in the following specific embodiment one joint.
Fig. 7, Fig. 7-1 is depicted as the method step that this bridge formation machine is set a roof beam in place on small curve radius R 〉=300m circuit, will illustrate in the specific embodiment.
This bridge formation of Fig. 8 to Fig. 8-11 expression frame beam via hole block diagram will illustrate in the specific embodiment.
The specific embodiment
The present invention is further described below with reference to embodiment (accompanying drawing):
Shown in Fig. 1 to Fig. 1-4, highway-railway dual-purpose box-shaped double-beam T-shaped beam bridge girder erection machine of the present invention comprises rear support leg (1), middle supporting leg (2), front leg strut (3), auxilliary supporting leg (4), two girders (5), forward and backward hanging beam dolly (6), electric and control system (7), preceding, middle supporting leg carrying roller (8) and hydraulic system (9).
Shown in Fig. 2, Fig. 2-1, Fig. 2-2, described middle supporting leg (2) comprises can be along the traversing traversing chassis (2a) of traverse rod (2d), on the traversing chassis (2a) pivoted frame on the chassis (2b), (2a) with between (2b) combine by hinge axle (2c), the pivot (2c) that can rotate between traversing chassis (2a) and the last pivoted frame (2b) relatively rotates, to adapt to the needs of frame camber beam; Traversing chassis is established 4 adhesion wheel groups and 4 three-in-one reductors altogether; Two cover pillar columns (2i) are fixedly mounted on the pivoted frame (2b) about middle supporting leg (2); The flexible of two root posts (2i) is to be realized by 4 jacking cylinders (2h), and promptly the flexible of every root post is to be realized by each jacking cylinder that is symmetricly set on its both sides; Four axles (2g) of having strong market potential, four bullets shown in Fig. 2-1 have respectively been adopted in connection between the inside and outside sleeve column of column; Column (2i) top installing carrying roller (8), carrying roller (8) is the tumbling-type supporting of two box girders of bridge formation machine (5), it is divided into upper strata (8a) and lower floor (8b), lower floor (8b) is connected with flange with column (2i) upper end, upper strata (8a) two box girders of bridge formation machine (5) with roller set (8d) support, and roller set (8d) promotes two box girders of bridge formation machine (5) vertical shift forwards under the driving of three-in-one reductor (8e); Carrying roller upper strata (8a) also is provided with gear changing group (8f), it acts on Xia Erliang (5b) end face of box girder (5), under the driving of three-in-one motor (8g), gear changing group (8f) is walked along above-mentioned this time ear beam, carry supporting leg in this (2) mechanism along two girders (5) below vertical shift, realizing the action of falling the leg of bridge formation machine vertical shift via hole.
Shown in Fig. 3, Fig. 3-1 Fig. 3-2, described front leg strut (3) by about three joint cover pillar columns (3d), go up horizontal-associate beam (3e), lower transverse beam (3b) and be connected about the bent structures formed jointly of horizontal-associate bar (3i) between three joint cover pillar columns; Wherein, respectively save upper strata oil cylinder (3g) and the lower floor's oil cylinder (3f) that sleeve column is made stretching motion being equipped with respectively between the first horizontal-associate bar and the second horizontal-associate bar, between the second horizontal-associate bar and lower transverse beam (3b) to be used to drive; Described lower transverse beam (3b) is being bearing on the traversing chassis (3a) with respect to the frame mode that traversing chassis (3a) does plane rotation motion; Described horizontal-associate beam (3e) upper end of going up is supported and is connected by constituting tumbling-type between carrying roller (8) and two box girders of bridge formation machine (5).More specifically say, shown in traversing chassis (3a) form by vehicle frame, set of wheels and three-in-one reductor etc., no longer carefully state; Also be provided with hinge between lower transverse beam (3b) and chassis (3a) center, hinge axle (3c) adopts studs, also be provided with the slotted hole bolt (3k) that is circular layout at two ends, the left and right sides and do loosening formula connection, itself and hinge axle (3c) protect the framed bent mechanism of front leg strut (3) and chassis (3a) to relatively rotate jointly, in order to set up the small curve radius (usefulness of bridge of R 〉=300m); Three joint cover pillar columns (3d) can reach the flexible of 4800mm as stroke about the front leg strut (3), lean on upper strata oil cylinder (3g) and lower floor's oil cylinder (3f) to realize the variation of so big differing heights jointly; Therefore it can adapt to various concrete deck-moldings or the high variation of pier voluntarily, and the abutment breastwork top of climbing up last hole girder span voluntarily, to finish setting up of last Kong Liang; Described top rail (3e) becomes a carriage under four diagonal braces (3h) support, lengthening top rail (3e) two end section are covered with two row's flange bolt holes, be used for installing carrying roller (8), the detailed construction of carrying roller (8) has been done detailed description in the description of supporting leg (2) in above-mentioned; The lower floor (8b) of carrying roller (8) is connected with flange with top rail (3e), and roller set (8d) rest of upper strata (8a) the box girder (5) of bridge formation machine.
Shown in Fig. 4, Fig. 4-1, auxilliary supporting leg (4) is arranged on side under two girder (5) front end horizontal-associate beams, between connect with ball pivot (4b); Auxilliary supporting leg (4) is to constitute single-column by three-section type pipe sleeve column (4a), be provided with upper strata oil cylinder (4c) and lower floor's oil cylinder (4d) as front leg strut (3), realize the variation of big altitude range (0-4800mm) jointly, different is that only each is not two with one to the levels oil cylinder.Owing to assist the T-shaped that is configured to of supporting leg (4) and girder (5) front end horizontal-associate beam, and suspension column erect-position and accurately impossible when reality is used, avoid thereby the crooked phenomenon of column is difficult, so in order to adapt to this rough sledding, auxilliary supporting leg (4) top must be provided with ball pivot, otherwise, potential safety hazard is arranged with regard to the correct design of right and wrong.
Shown in Fig. 1, Fig. 1-1, the structural feature of rear support leg (1) is a bent structure that can stretch up and down that is analogous to front leg strut (3), and it can also perk become level simultaneously.Its concrete structure is as follows: described rear support leg (1) by about three joint cover pillar columns (1a), go up horizontal-associate beam (1g), lower transverse beam (1b) and be connected about the bent structures formed jointly of horizontal-associate bar between three joint cover pillar columns; The a pair of vertical push cylinder of the usefulness of sticking up leg (1d) of doing wherein is housed between top rail (1g) and the first horizontal-associate bar below it, between the second horizontal-associate bar and the 3rd horizontal-associate bar, be equipped with respectively to be used to drive between the 3rd horizontal-associate bar and the lower transverse beam (1b) and respectively save upper strata jacking cylinder (1e) and the lower floor's jacking cylinder (1f) that sleeve column is made stretching motion; The upper end of left and right pillar (1a) is connected with two girder (5) lower covers by otic placode free bearing (1c) respectively.The function of its perk is achieved like this: two heel posts (1a) the upper end system of rear support leg (1) respectively is connected with the girder lower cover by two otic placode free bearings (1c); Upright when stressed when it, both sides capital two otic placode free bearings (1c) has separately all inserted the connection bearing pin, and rear support leg this moment (1) is equivalent to a rigid leg but not the flexible leg that singly is hinged or claim hinged supporting leg.When the bridge formation machine via hole of falling the leg, rear support leg (1) must be the rigid leg structure, and the general structure that could guarantee the bridge formation machine is how much immutable rock-steady structures.At this moment no matter be single-beam formula or double beam girder erecting machine, if the rear support leg top singly is hinged, the general structure of the machine of then building bridge is exactly a transition structure, bigger will cause the complete machine collapse accident during horizontal force longitudinally along girder when running into.When rear support leg (1) must perk, (supporting leg has propped up and stand in this moment) then need only pull out two proceeds posterolateral bearing pins of ear plate base (1c), then will stick up sticking up leg special-purpose hydraulic cylinder (1d) promotion lower rear leg strut (1).Crossbeam (1b) can directly prop up on bridge floor under the rear support leg (1).
Shown in Fig. 5, Fig. 5-1, Fig. 5-2, described forward and backward hanging beam dolly (6) is formed by being across vertical shift chassis (6b) on two girder (5) long rails and the traversing dolly (6a) that is bearing on the vertical shift chassis (6b), and hoisting system (6c) is installed on the traversing dolly (6a); Traversing dolly (6a) is bearing in vertical shift chassis (6b) by the cross track that is laid on vertical shift chassis (6b) vehicle frame on two crossbeams.Traversing dolly (6a) is with the traversing dolly of the wheel-track type of three-in-one reductor among the figure, but hanging beam is traversing; Vertical shift chassis (6b) is the wheel-track type vertical shift chassis with three-in-one reductor, but hanging beam is along the track vertical shift of girder top; Hoisting system (6c) is hoisting system (an electric winch formula).Because sufficient space has been arranged between traversing dolly (6a) and two girders (5), make when setting up side bar and can put in place, and enlarged traversing amount by the beam that once falls of aerial method for traversing on the machine.
Hydraulic system as shown in Figure 1 (9) is to comprise all hydraulic pressure facilities such as pumping plant, telescopic oil cylinder of rear support leg (1), middle supporting leg (2), front leg strut (3) and auxilliary supporting leg (4).The creation point of hydraulic system (9) is the whole supporting leg more piece cover pillar column design of close fit and adopts double-deck telescopic oil cylinder configuration and layering to control principle step by step, each supporting leg adjusted in big altitude range realized in full fluid power mode.
By the total figure of the present invention shown in Figure 1 as seen, two girders (5) are that the steel case beam and the two ends horizontal-associate beam (5c, 5d) that are be arranged in parallel by two length overall 73.45m consist of a plane frame structure, two center to center distance between main girder are 4.5m, two steel case beam sections are of a size of height * wide=2.2 * 0.6m, the upper cover plate total length is laid single track (5e), for hanging beam dolly (6) walking; Lower cover both sides total length is established ear beam (5b), for gear changing group (8f) walking of carrying roller (8).Except that the horizontal-associate beam was established in the front and back end, middle no any binding was so hanging beam dolly (6) is being with suspender or lift heavy to go everywhere without any hindrance here from the beginning to the end between the two steel case beams.Flange socket is adopted in being connected between two girders (5) two ends horizontal-associate beam and the steel case beam, is convenient to mounting or dismounting.The segmented manufacturing of two girders (5) total length is so that long-distance transport, 12m one joint basically.Adopt built-in flange to connect between the sections.Two girders (5) are by rear support leg (1), middle supporting leg (2), front leg strut (3), auxilliary supporting leg (4) supporting, wherein middle supporting leg (2) and front leg strut (3) are by carrying roller (8) two girders (5) to be made rolling bearing, so can do the vertical relative motion of level between them, but when when setting a roof beam in place state, being fastened with a bolt or latch the jail with special detent mechanism (5a).And the position relation of rear support leg (1) and auxilliary supporting leg (4) and two girders (5) is that relative fixed is constant.
The present invention has several technical datas of its main performance that can reflect to be described below:
1) set up the beam type: highway, railway tee girder, biplate or multi-disc are arranged, beam sheet spacing≤2.6m.
2) set up span: L
p=24～40m.
3) setting up beam weighs: Q≤170t.
4) accommodation curve: R 〉=300m.
5) adapt to longitudinal gradient: i≤5%.
6) set up side bar: aerial traversing one-time-reach-place.
7) adapt to Beam transportation vehicle: wheel-track type or rubber-tyred all can.
It is as follows that the present invention sets up the concrete grammar of side bar:
Shown in Fig. 5, Fig. 5-1, Fig. 5-2, forward and backward hanging beam dolly has hoisting system (6c), vertical shift chassis (6b) and traversing dolly (6a) to form.Two girder spacings are 4.5m, and the traversing space of traversing trolley hoisting beam is abundant.When lifting the beam sheet, forward and backward hanging beam dolly (6) walks behind the bridge opening Luo Liang position, do traversing beam action more simultaneously, be that forward and backward traversing dolly (6a) moves simultaneously to the left or to the right, can steadily and exactly fall right side beam sheet or left side beam sheet in place once, referring to state shown in Figure 6, at this moment, front leg strut (3) arrives the place ahead bridge pier or abutment and props up and stand under the carrying of gear changing group (8f), and its result is state as shown in Figure 1.As seen from Figure 6, river trend and line alignment oblique at 45, bridge formation machine system is along line direction, and abutment or bridge pier cross-bridges move towards system along the river trend, front leg strut (3) diagonal track and in supporting leg (2) diagonal track system and abutment or bridge pier cross-bridges to move towards also to be that the river moves towards consistent, so before on the crane ' s major girder (5), back hanging beam dolly (6) position in bridge opening is lifting the beam sheet, and the walking carriage of the middle supporting leg (2) of bridge formation machine and front leg strut (3) is along the synchronous operation simultaneously of diagonal track, the beam sheet can be transported to design attitude, then hanging beam dolly (6) lifting the beam sheet can before and after, the move left and right aligned position, beam falls.So finally finish setting up of whole hole multi-disc obliquely-intersected beams smoothly.。
The present invention little curve (concrete grammar of setting a roof beam in place on the R 〉=300m) is as follows:
Shown in Fig. 7, Fig. 7-1, establishing bridge span is 40m, is positioned on the curve of R=300m.
1) establishes bridge formation machine initial position at A
1B
1C
1On the straight line, A wherein
1Be rear support leg erect-position, B
1Be middle supporting leg erect-position, C
1Be the front leg strut erect-position, and B
1Tie up to the beam head of setting a roof beam in place, C
1Tie up on the Dun Ding.Represent current this hole beam B this moment
1-C
1Frame was intact already, and the bridge formation machine will the vertical shift via hole.
2) crane ' s major girder under the promotion of supporting leg carrying roller along former rectilinear direction forward vertical shift to next position, hole, i.e. A
2B
2C
1D
2The point position.Here English alphabet is represented the new erect-position of each supporting leg: A
2Represent rear support leg, B
2Supporting leg in the representative, C
1Represent front leg strut (motionless in position), D
2The auxilliary supporting leg of representative.As seen from the figure, at this moment be positioned at the auxilliary supporting leg (D of girder front end
2) tie up to before the 5.73m sky, the square pier outside poise, the method for present available swing arm is traversing to pier top D its
3The point.So, make middle legs B
2Traversing chassis starts, and plans mobile laterally 74cm, and this moment, girder can (be C around the hinge between front leg strut lower transverse beam and its traversing chassis
1The point position) rotate, central supporting leg is by B
2Point moves to B
3During point, then the auxilliary supporting leg of front end is naturally just by D
2Point has been swung D
3, center, promptly preceding square pier top.Then fall and prop up and found auxilliary supporting leg, be stowed in C on the square pier of back
1The front leg strut of point, the gear changing group that starts carrying roller promptly is close to auxilliary supporting leg (at D with the front leg strut vertical shift to preceding square pier top
3Point) props up and stand; At this moment the erect-position of machine of building bridge is A
3B
3D
3, A wherein
3Represent rear support leg, B
3Supporting leg in the representative, D
3Represent front leg strut and auxilliary supporting leg in the lump.
3) pack up auxilliary supporting leg (D
3) a little is away from the bridge pier end face, with front leg strut (by D
3) under hinge between crossbeam and the traversing chassis be the center, at B
3The traversing chassis reposition of middle supporting leg of point is B
3Point turns back on the center line between the two good tee girder sheets of former frame rear support leg.The final erect-position of bridge formation machine that then sets up current this Kong Liang is A
4B
2D
3
4) follow perk rear support leg (A
4), Beam transportation vehicle is transported the beam sheet come, and preceding hanging beam dolly can be at middle supporting leg (B
2) rear lifting beam sheet forwards transports along girder, back hanging beam dolly recurrence hanging beam sheet rear end then, forward and backward hanging beam dolly moves simultaneously, can finish current this Kong Liang (B
2-D
3) set up.In sum as seen, this bridge formation machine step of setting a roof beam in place on little curve is simply clear and definite, easily operation.
Three, the overall implementation method of the via hole of setting a roof beam in place of the present invention
By flow chart shown in Fig. 8 to Fig. 8-11 one by one correspondence be illustrated its specific embodiment.
(1) establishing the bridge formation machine sets a roof beam in place on curve, frame finished a hole beam already, bridge formation machine vertical shift arrives current this position, hole, go to swinging arm: be the center with the front leg strut, the supporting leg chassis is traversing in starting, promote girder around the front leg strut rotation, make the auxilliary supporting leg of front end swing the sky, preceding square pier center and fall to prop up and stand.It is unsettled to notice that at this moment rear support leg has contracted, preceding hanging beam dolly center to center distance front leg strut 10m.
(2) pack up front leg strut, vertical shift is to the center line of preceding square pier top and stand.Pack up auxilliary supporting leg a little, be the center with the front leg strut, swing arm back once more, promptly in the supporting leg chassis start, travel back to the initial point position and be on the center line between the two good tee girder sheets of former frame.
(3) forward and backward hanging beam dolly is drawn close to middle supporting leg, and the perk rear support leg is prepared feeding beam.
(4) the first lifting beam sheet of preceding hanging beam dolly transports forward along girder; Back hanging beam dolly is followed the lifting beam sheet.
(5) forward and backward hanging beam dolly is lifting the beam sheet and is being advanced to the spanning assigned address, aerial traversing beam sheet, and the contraposition beam that falls, Beam transportation vehicle returns to be removed.
(6) the forward and backward hanging beam dolly main beam rear end of dropping back.
(7) turn down rear support leg, but still unsettledly do not land.Supporting leg and front leg strut carrying roller in starting simultaneously drive girder vertical shift forwards, in drawing close to rear support leg till the supporting leg.
(8) prop up upright rear support leg, supporting leg leaves bridge floor in packing up, and starts that the carrying roller gear changing group is stopped behind the supporting leg reach 25m in making and stands on bridge floor.
(9) pack up rear support leg, supporting leg, front leg strut carrying roller in the startup drive girder vertical shift forwards simultaneously, and the auxilliary supporting leg of supporting leg and front end arrives till the preceding square pier sky in drawing close to rear support leg.
(10) prop up upright rear support leg, pack up middle supporting leg, the supporting leg vertical shift is to the beam head region of setting a roof beam in place in making.This moment is operation in two kinds of situation:
1) if set a roof beam in place on curve, then next step is to get back to step (), the operation of a beginning new round
2), then continue following steps (11) if on straight line, set a roof beam in place
(11) Zhi Lizhong supporting leg, a upright auxilliary supporting leg is packed up front leg strut.
(12) are pushed up the front leg strut vertical shift and prop up and stand to preceding square piers, and preceding hanging beam dolly is got back to middle supporting leg back, and back hanging beam dolly is caught up with.Pack up and the perk rear support leg, prepare feeding beam.
Claims (3)
1. highway-railway dual-purpose box-shaped double-beam T-shaped beam bridge girder erection machine, comprise rear support leg (1), middle supporting leg (2), front leg strut (3), auxilliary supporting leg (4), two girders (5), forward and backward hanging beam dolly (6), electric and control system (7), preceding, middle supporting leg carrying roller (8) and hydraulic system (9) is characterized in that:
A, described rear support leg (1) by about three joint cover pillar columns (1a), go up horizontal-associate beam (1g), lower transverse beam (1b) and be connected about the bent structures formed jointly of horizontal-associate bar between three joint cover pillar columns; The a pair of vertical push cylinder of the usefulness of sticking up leg (1d) of doing wherein is housed between top rail (1g) and the first horizontal-associate bar below it, between the second horizontal-associate bar and the 3rd horizontal-associate bar, be equipped with respectively to be used to drive between the 3rd horizontal-associate bar and the lower transverse beam (1b) and respectively save upper strata jacking cylinder (1e) and the lower floor's jacking cylinder (1f) that sleeve column is made stretching motion; The upper end of left and right pillar (1a) is connected with two girder (5) lower covers by otic placode free bearing (1c) respectively;
B, described in supporting leg (2) comprise traversing chassis (2a), be installed in traversing chassis top and can make the last pivoted frame (2b) of plane rotation motion with respect to traversing chassis, and be fixedly mounted on the side bar of pivoted frame both sides about overlap pillar column (2i) and be used to drive about overlap the jacking cylinder (2h) that the pillar column is made stretching motion; Left and right pillar (2c) upper end is supported and is connected by constituting tumbling-type between carrying roller (8) and two box girders of bridge formation machine (5);
C, described front leg strut (3) by about three joint cover pillar columns (3d), go up horizontal-associate beam (3e), lower transverse beam (3b) and be connected about the bent structures formed jointly of horizontal-associate bar between three joint cover pillar columns; Wherein, respectively save upper strata oil cylinder (3g) and the lower floor's oil cylinder (3f) that sleeve column is made stretching motion being equipped with respectively between the first horizontal-associate bar and the second horizontal-associate bar, between the second horizontal-associate bar and lower transverse beam (3b) to be used to drive; Described lower transverse beam (3b) is being bearing on the traversing chassis (3a) with respect to the frame mode that traversing chassis (3a) does plane rotation motion; Described horizontal-associate beam (3e) upper end of going up is supported and is connected by constituting tumbling-type between carrying roller (8) and two box girders of bridge formation machine (5);
D, described auxilliary supporting leg (4) are the single columns that is made of three-section type pipe sleeve column (4a), and suspension column is slabbed construction, are located at side under two girder (5) front end horizontal-associate beams, between connect with ball pivot (4b); And between the first segment pipe sleeve column and the second pitch circle pipe box post, be respectively arranged with between the second pitch circle pipe box post and the 3rd pitch circle pipe box post and be used to drive upper cylinder (4c) and the following oil cylinder (4d) that each pitch circle pipe box post is made stretching motion;
E, two girder (5) are made up of two steel case beams that be arranged in parallel, and two ends are affixed with horizontal-associate beam (5c, 5d), constitute a plane rectangular frame structure; Be provided with the Xia Erliang (5b) of gear changing group (8f) vertical shift of the carrying roller that is provided with each supporting leg top in two girders (5) below; Be equipped with the orbit (5e) of forward and backward hanging beam dolly (6) in the top of two girders (5).
2. highway-railway dual-purpose box-shaped double-beam T-shaped beam bridge girder erection machine according to claim 1, it is characterized in that: described forward and backward hanging beam dolly (6) is formed by being across vertical shift chassis (6b) on two girder (5) long rails and the traversing dolly (6a) that is bearing on the vertical shift chassis (6b), and hoisting system (6c) is installed on the traversing dolly (6a); Traversing dolly (6a) is bearing in vertical shift chassis (6b) by the cross track that is laid on vertical shift chassis (6b) vehicle frame on two crossbeams.
3. highway-railway dual-purpose box-shaped double-beam T-shaped beam bridge girder erection machine according to claim 1, it is characterized in that: the carrying roller (8) that is separately positioned on described forward and backward supporting leg upper end is divided into upper strata (8a) and lower floor (8b), upper strata (8a) is equipped with active roller group (8d) and comes the two girders (5) of rest, and supporting leg (2) and front leg strut (3) during initiatively gear changing group (8f) hangs; Lower floor (8b) is a base, and bed plate props up pad and connects on the respective leg top and with flange bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102274151A CN101736696B (en) | 2009-12-10 | 2009-12-10 | Highway-railway dual-purpose box-shaped double-beam T-shaped beam bridge girder erection machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102274151A CN101736696B (en) | 2009-12-10 | 2009-12-10 | Highway-railway dual-purpose box-shaped double-beam T-shaped beam bridge girder erection machine |
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| Publication Number | Publication Date |
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| CN101736696B CN101736696B (en) | 2011-06-15 |
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|---|---|---|---|
| CN2009102274151A Active CN101736696B (en) | 2009-12-10 | 2009-12-10 | Highway-railway dual-purpose box-shaped double-beam T-shaped beam bridge girder erection machine |
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| CN108557640B (en) * | 2018-07-11 | 2023-09-05 | 山东省路桥集团有限公司 | Integral hoisting equipment and hoisting method for cast-in-situ box girder steel reinforcement framework |
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