CN109629422B - Novel transverse moving and amplitude-passing method of bridge girder erection machine - Google Patents
Novel transverse moving and amplitude-passing method of bridge girder erection machine Download PDFInfo
- Publication number
- CN109629422B CN109629422B CN201811436437.4A CN201811436437A CN109629422B CN 109629422 B CN109629422 B CN 109629422B CN 201811436437 A CN201811436437 A CN 201811436437A CN 109629422 B CN109629422 B CN 109629422B
- Authority
- CN
- China
- Prior art keywords
- amplitude
- pair
- track
- variable
- amplitude variation
- 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
Images
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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a novel cross-sliding and over-width method of a bridge girder erection machine, which comprises the following steps: s1, respectively installing a pair of amplitude variation tracks on the pier tops of two adjacent pairs of piers with left and right amplitudes along the transverse bridge direction; s2, sliding the corresponding amplitude-variable cross beam on the amplitude-variable track until the two ends of the amplitude-variable cross beam are respectively positioned above the pier tops of the pier of the left amplitude and the right amplitude, adjusting the level of the amplitude-variable cross beam and fixing the amplitude-variable cross beam on the pier tops of the pier of the left amplitude and the right amplitude; and S3, traversing the bridge girder erection machine from one web to the other web on a pair of amplitude-variable cross beams. The invention has the advantages of suitability for bridge decks with the length of more than 40 meters, low construction cost and the like, and can be widely applied to the technical field of double-deck bridge construction.
Description
Technical Field
The invention relates to the technical field of double-deck bridge construction. More particularly, the invention relates to a novel cross-web method for a bridge girder erection machine.
Background
For the double-line highway section prefabricated bridge, the prior domestic prefabricated section assembling bridge girder erection machine is generally used for the traditional single-width bridge construction, namely, after one bridge is constructed, the whole bridge girder erection machine is transversely moved to the other bridge girder construction through a transverse amplitude changing mechanism. In the existing construction method, when amplitude variation is carried out, after an amplitude variation cross beam is hoisted to a proper position by a crane, a bridge girder erection machine is pushed from one amplitude to the other amplitude on the amplitude variation cross beam. However, for bridge construction of bridge deck over 40 meters, the hoisting method has high requirements on cranes and high cost for hoisting the once amplitude-variable cross beam. Moreover, the ground needs to be prepared and constructed in advance by adopting the crane, the hoisting construction of the high bridge floor has low hoisting safety factor, and safety accidents are easy to happen when the hoisting tonnage is overlarge.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.
It is yet another object of the present invention to provide a novel cross-over method for a bridge girder erection machine suitable for a deck of 40 meters or more at low construction cost.
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a novel bridge girder erection machine traverse cross-web method, comprising:
s1, respectively installing a pair of amplitude variation tracks on the pier tops of two adjacent pairs of piers with left and right amplitudes along the transverse bridge direction;
s2, sliding the corresponding amplitude-variable cross beam on the amplitude-variable track until the two ends of the amplitude-variable cross beam are respectively positioned above the pier tops of the pier of the left amplitude and the right amplitude, adjusting the level of the amplitude-variable cross beam and fixing the amplitude-variable cross beam on the pier tops of the pier of the left amplitude and the right amplitude;
and S3, traversing the bridge girder erection machine from one web to the other web on a pair of amplitude-variable cross beams.
Preferably, the step S1 specifically includes:
s11, moving the bridge girder erection machine on a constructed frame along the longitudinal bridge direction until the length of a pair of piers of which the front and rear cantilevers of the main girder exceed the frame is the same;
s12, mounting the front and rear supporting legs to be respectively adjacent to a pair of middle supporting legs, enabling the upright post of the rear supporting leg to be supported on the constructed beam surface, enabling the upright post of the front supporting leg to be supported on the pier top of the constructed pier post positioned in front, and enabling the front cross beam and the rear cross beam of the front and rear supporting legs to both support the main beam of the bridge girder erection machine;
s13, detaching the middle support legs, and respectively installing the upright columns of one pair of middle support legs to the pier tops of the front and rear pair of piers of the other bridge;
and S14, installing a pair of amplitude variation tracks by adopting a tower crane, wherein one end of each amplitude variation track is fixed on the upright post of the middle supporting leg, and the other end of each amplitude variation track is arranged on the beam surface.
Preferably, the step S2 specifically includes:
s21, adopting a crown block to slidably and respectively install the crossbeams of the pair of middle supporting legs on the pair of amplitude variation tracks, and positioning the crossbeams under the main beam of the bridge girder erection machine;
s22, sliding the cross beam of the middle support leg along the cross bridge and towards the other side along the amplitude-variable track for 8-12 meters;
s23, hoisting a pair of amplitude-variable connecting beams to the position right below a main beam of the bridge girder erection machine by using a crown block, and respectively connecting the pair of amplitude-variable connecting beams with a pair of cross beams of the middle support leg;
s24, sliding the pair of amplitude-variable connecting beams on the amplitude-variable track to enable the cross beams of the pair of middle supporting legs to be respectively positioned above the upright posts of the pair of middle supporting legs;
s25, hoisting a pair of amplitude variation middle support legs to the amplitude variation track by using a crown block, and respectively connecting the pair of amplitude variation middle support legs with a pair of amplitude variation crossbeams;
and S26, respectively and detachably fixing the pair of middle support leg cross beams on the upright posts of the middle support legs, and respectively and detachably fixing the pair of amplitude-variable middle support legs on the beam surface.
Preferably, the new bridge girder erection machine traverse cross-web method further comprises: the step S3 specifically includes:
s31, mounting a pair of trolleys at one end of each amplitude variation beam, and enabling the main beam of the bridge girder erection machine to fall on all the trolleys;
and S32, under the synchronous pushing of the two transverse moving oil cylinders, the trolleys on the tops of the piers of the front pier and the rear pier are synchronous, and move from one end of the amplitude-variable cross beam to the other end of the amplitude-variable cross beam along the transverse bridge direction, so that the bridge girder erection machine falling on the trolleys completes amplitude variation.
Preferably, the amplitude variation track is an i-steel, the amplitude variation beam is arranged on the amplitude variation track in a manner that the amplitude variation beam can slide along the length direction of the amplitude variation track through a sliding block, the sliding block is in a square shape, and the lower surface of the sliding block is recessed inwards to form an inverted T-shaped sliding groove which is communicated along the length direction of the amplitude variation track; the sliding grooves enable the sliding blocks to form a pair of bottom plates, a top plate and a pair of vertical side plates; the pair of vertical side plates of the sliding groove respectively abut against the pair of upper flange plates of the variable amplitude track, the sliding block is sleeved on the variable amplitude track through the sliding groove of the sliding block, and the lower surface of the top plate of the sliding block is attached to the top surface of the variable amplitude track.
Preferably, the upper part of the first end surface of one end of the web plate of the amplitude variation track is recessed to form a square groove; the top surface of the amplitude variation track is recessed to form a vertical step through hole which penetrates through the square groove and is large at the top and small at the bottom; the square groove is internally provided with a jacking block which comprises an upper part and a lower part which are integrally formed, the upper part of the jacking block is in a square shape, and the lower part of the jacking block is in a cylindrical shape arranged at the center of the bottom surface of the upper part; a pair of opposite and vertical outer side surfaces at the upper part of the jacking block extend along the width direction of the amplitude-variable track to form a first clamping block protruding out of a web plate of the amplitude-variable track; the distance between the top surface of the jacking block and the top of the square groove is 10-20 cm, the bottom surface of the upper part of the jacking block is attached to the bottom of the square groove, and the lower part of the jacking block is built in the web plate;
the lower surfaces of a pair of upper wing plates of the amplitude variation track are symmetrically provided with cylinder bodies of a pair of vertical oil cylinders, and the end surfaces of the telescopic ends of the cylinder bodies are respectively fixed with an inverted T-shaped second clamping block which respectively faces to a first clamping block;
the upper part of the upper section of the step through hole is filled with lubricating oil, the lower part of the upper section of the step through hole is provided with a cylindrical sealing rubber plug which separates the lubricating oil at the upper part of the upper end of the step through hole, the middle part of the lower surface of the sealing rubber plug extends downwards to form a push rod, and the lower end of the push rod penetrates through the lower section of the step through hole and abuts against the upper surface of the jacking block;
the vertical side surfaces of a pair of bottom plates of the sliding block are recessed inwards to form a first clamping groove which is communicated along the length direction of the amplitude variation track and is matched with the first clamping block; the inner surfaces of the pair of bottom plates are recessed to form an inverted T-shaped second clamping groove which is communicated along the length direction of the amplitude variation track; which is matched with the second clamping block.
Preferably, the second end face at the other end of the web plate of the amplitude variation track is recessed along the length direction of the amplitude variation track to form a blind hole which is adjacent to the square groove;
the top surface of the amplitude variation track is recessed to form a plurality of circular holes penetrating through the blind holes, and the diameter of the circular holes is 1-2 cm.
Preferably, a sealing plug cover is arranged at the top of the stepped through hole.
The invention at least comprises the following beneficial effects:
the invention provides a novel bridge girder erection machine transverse moving amplitude-crossing method, which is suitable for bridge floors of more than 40 meters and has low construction cost because the amplitude-changing track is hoisted, the amplitude-changing crossbeam is divided into three sections, and the amplitude-changing crossbeam slides in place from the amplitude-changing track in sections, thereby reducing the requirements on hoisting equipment in the amplitude-changing construction process, reducing the construction cost and being convenient for construction.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIGS. 1-7 are cross-web construction diagrams of the present invention;
FIG. 8 is a schematic view of the connection relationship between the slider and the luffing track according to the present invention;
FIG. 9 is a schematic view showing the position relationship between the push rod and the guide block when the telescopic rod of the present invention is in the longest state;
FIG. 10 is a schematic diagram showing the positional relationship between the stepped through-hole and the square groove according to the present invention;
fig. 11 is a schematic view of the position relationship between the push rod and the guide block when the telescopic rod of the present invention is in the shortest state.
Description of reference numerals: 1. the device comprises a pier, 2, a variable amplitude track, 3, a variable amplitude crossbeam, 4, a bridge girder erection machine, 5, a trolley, 6, a main girder, 7, a transverse moving oil cylinder, 8, a girder surface, 9, a middle supporting leg, 10, a front supporting leg, 11, a rear supporting leg, 12, a stand column of the middle supporting leg, 13, a crossbeam of the middle supporting leg, 14, a crown block, 15, a variable amplitude connecting beam, 16, a variable amplitude middle supporting leg, 17, a pushing oil cylinder, 18, a sliding block, 19, a bottom plate of the sliding block, 20, a top plate of the sliding block, 21, a vertical side plate of the sliding block, 22, an upper flange plate, 23, a web plate, 24, a square groove, 25, a step through hole, 26, a jacking block, 27, an upper part of the jacking block, 28, a lower part of the jacking block, 29, a first clamping block, 30, a vertical oil cylinder.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials, if not otherwise specified, are commercially available; in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1-11, the present invention provides a novel bridge girder erection machine traverse cross-web method, comprising:
s1, respectively installing a pair of amplitude variation tracks 2 on the tops of two adjacent pairs of piers 1 with left and right amplitudes along the transverse bridge direction;
s2, sliding the corresponding amplitude-variable cross beam 3 on the amplitude-variable track 2 until the two ends of the amplitude-variable cross beam are respectively positioned above the pier tops of the pier 1 of the left amplitude and the right amplitude, adjusting the level of the amplitude-variable cross beam 3 and fixing the amplitude-variable cross beam 3 on the pier tops of the pier 1 of the left amplitude and the right amplitude;
s3, traversing the bridge girder erection machine 4 from one web to the other on the pair of variable-amplitude crossbeams 3.
In the technical scheme, the novel transverse amplitude-crossing method of the bridge girder erection machine 4 provided by the invention is suitable for amplitude change of the bridge girder erection machine 4 in double-amplitude bridge construction with the bridge deck higher than the ground by more than 40 meters, and under the construction condition of more than 40 meters, in the amplitude change process of the bridge girder erection machine 4, if a conventional method is adopted to directly hoist the amplitude-changing cross beam 3 in place, the requirement on required hoisting equipment is high, and the cost is high, so the method adopts a mode of hoisting the amplitude-changing track 2 and then sliding the amplitude-changing cross beam 3 in place from the amplitude-changing track 2, and because the weight of the amplitude-changing track 2 is far less than that of the amplitude-changing cross beam 3, the requirement on the hoisting equipment and the cost can be reduced. The amplitude-variable cross beam 3 slides in place on the amplitude-variable track through the pushing oil cylinder 17. It should be noted that the bridge girder erection machines of the present invention are all prefabricated segment assembling bridge girder erection machines. The variable amplitude tracks can be a pair of variable amplitude tracks or one variable amplitude track, when the variable amplitude tracks are one, the variable amplitude tracks are firstly installed to the pier tops of the left pier and the right pier which are positioned in front, one variable amplitude cross beam slides in place, then the variable amplitude tracks are taken out, the variable amplitude tracks are installed to the pier tops of the left pier and the right pier which are positioned in back, and then the remaining variable amplitude cross beam slides in place.
In the invention, a pair of amplitude variation tracks 2 are respectively arranged on the pier tops of two adjacent pairs of pier stud piers with left and right amplitudes along the transverse bridge direction; the two pairs of pier columns refer to N and N +1 piers on the left frame and N +1 piers on the right frame, for example, N is 15, the two pairs of pier columns refer to a pair of pier columns 15 and 16 on the left frame and a pair of pier columns 15 and 16 on the right frame respectively, the transverse moving across the frames refers to sliding the bridge girder erection machine from the pier columns 15 and 16 on the left frame to the pier columns 15 and 16 on the right frame, or sliding the bridge girder erection machine from the pier columns 15 and 16 on the left frame, and meanwhile, one end of one amplitude variation track in the installed pair of amplitude variation tracks is at the pier 15 on the right frame and the other end is at the pier 15 on the left frame; the other luffing track has one end at the 16 pier of the right frame and the other end at the 16 pier of the left frame, and 15 and 16 in the text of the segment are different from the marks in the reference mark specification.
The rigidity of the variable amplitude track 2 is not as high as that of the variable amplitude crossbeam 3, so that in the construction process, after the variable amplitude crossbeam 3 moves in place, two ends of the variable amplitude crossbeam 3 are respectively and directly fixed on the upright post 12 or the constructed beam surface 8.
In another technical solution, the step S1 specifically includes:
s11, moving the bridge girder erection machine 4 on a constructed frame along the longitudinal bridge direction until the front and rear cantilevers of the main girder 6 of the bridge girder erection machine exceed the pair of piers 1 of the frame by the same length;
s12, mounting the front and rear supporting legs 11 to be respectively adjacent to a pair of middle supporting legs 9, enabling the upright post 12 of the rear supporting leg 11 to be supported on the constructed beam surface 8, enabling the upright post of the front supporting leg to be supported on the pier top of a constructed pier post positioned in front, and enabling the front cross beam and the rear cross beam of the front and rear supporting legs 11 to support the main beam 6 of the bridge crane 4;
s13, removing the middle support legs 9, and respectively installing the upright posts 12 of one pair of middle support legs 9 on the tops of the front and rear pairs of piers 1 on the other side;
and S14, installing a pair of amplitude variation tracks 2 by adopting a tower crane, wherein one end of each amplitude variation track is fixed on the upright post 12 of the middle supporting leg 9, and the other end of each amplitude variation track is arranged on the beam surface 8.
In this technical solution, S11 may make the support of the front leg 10 and the rear leg 11 to the bridge girder erection machine 4 more stable. In the step S13, a crown block is adopted to assist in dismounting the pair of middle support legs, so that the upright columns of the middle support legs and the cross beams thereof are detached, and then the upright columns of the middle support legs are hoisted to the tops of the front pier and the rear pier of the other pier by a tower crane or other small cranes.
In another technical solution, the step S2 specifically includes:
s21, adopting a crown block 14 to slidably and respectively install the crossbeams 13 of the pair of middle supporting legs 9 on the pair of amplitude variation tracks 2, and positioning the crossbeams and the amplitude variation tracks under the main beam 6 of the bridge girder erection machine 4;
s22, sliding the cross beam 13 of the middle support leg 9 to make it slide 8-12 meters along the width-variable track 2 along the transverse bridge direction and towards the other one;
s23, hoisting a pair of amplitude-variable connecting beams 15 to the position right below the main beam 6 of the bridge girder erection machine 4 by using a crown block 14, and respectively connecting the pair of amplitude-variable connecting beams 15 with the cross beams 13 of the pair of middle support legs 9;
s24, sliding the pair of amplitude-variable connecting beams 15 on the amplitude-variable track 2, so that the crossbeams 13 of the pair of middle support legs are respectively positioned above the upright posts 12 of the pair of middle support legs;
s25, hoisting a pair of amplitude-variable middle support legs 16 to the amplitude-variable track 2 by using a crown block 14, and respectively connecting the pair of amplitude-variable middle support legs 16 with a pair of amplitude-variable cross beams 3;
and S26, respectively and detachably fixing the cross beams of the pair of middle support legs 9 on the upright posts 12 of the middle support legs 9, and respectively and detachably fixing the middle support legs 9 of the pair of amplitude-variable middle support legs 16 on the beam surface 8.
The amplitude-variable track of the invention is formed by connecting three sections of a middle landing leg crossbeam, an amplitude-variable connecting beam and an amplitude-variable middle landing leg end to end into a whole, as shown in figure 5.
In another aspect, the new bridge girder erection machine cross-web method further comprises: the step S3 specifically includes:
s31, mounting a pair of trolleys 5 at one end of each amplitude variation crossbeam 3, and enabling the main beam 6 of the bridge girder erection machine 4 to fall on all the trolleys 5;
s32, under the synchronous pushing of the pair of traversing cylinders 7, the trolleys 5 on the pier tops of the front and rear piers 1 synchronously move from one end of the amplitude-variable cross beam 3 to the other end of the amplitude-variable cross beam 3 along the transverse bridge direction, so that the bridge girder erection machine 4 falling on the trolleys 5 completes amplitude variation.
In another technical scheme, the amplitude varying track 2 is an i-steel, the amplitude varying crossbeam 3 is arranged on the amplitude varying track 2 in a manner that the amplitude varying crossbeam can slide along the length direction of the amplitude varying track 2 through a sliding block 18, the sliding block 18 is in a square shape, the lower surface of the sliding block is recessed to form an inverted T-shaped sliding groove, and the sliding groove penetrates through the amplitude varying track 2 along the length direction; the sliding grooves enable the sliding block 18 to form a pair of bottom plates 19, a top plate 20 and a pair of vertical side plates 21; a pair of vertical side plates of the sliding groove respectively abut against a pair of upper flange plates 22 of the variable amplitude track 2, the sliding block 18 is sleeved on the variable amplitude track 2 through the sliding groove, and the lower surface of the top plate of the sliding block 18 is attached to the top surface of the variable amplitude track 2.
In this solution, the pair of bottom plates of the slider 18 can be left in place against the upper wing of the i-steel, thus preventing the slider 18 from coming off the luffing track 2. The top plates of the pair of sliding blocks are detachably fixed with the two ends of the lower surface of the amplitude variable track.
In another technical scheme, the upper part of the first end surface of one end of the web plate 23 of the amplitude variation track 2 is sunken to form a square groove 24; the top surface of the amplitude variation track 2 is recessed to form a vertical step through hole 25 which penetrates through the square groove 24 and is large at the top and small at the bottom; a jacking block 26 is arranged in the square groove 24 and comprises an upper part and a lower part which are integrally formed, the upper part 27 of the jacking block 26 is in a square shape, and the lower part of the jacking block is in a cylindrical shape arranged at the center of the bottom surface of the upper part; a pair of opposite and vertical outer side surfaces of the upper part 27 of the jacking block 26 extend along the width direction of the amplitude variation track 2 to form a first clamping block 29 protruding from the web plate 23 of the amplitude variation track 2; the distance between the top surface of the jacking block 26 and the top of the square groove 24 is 10-20 cm, the bottom surface of the upper part 27 of the jacking block 26 is attached to the bottom of the square groove 24, and the lower part 28 of the jacking block 26 is arranged in the web plate 23;
the lower surfaces of a pair of upper wing plates of the amplitude variation track 2 are symmetrically provided with a pair of cylinder bodies of vertical oil cylinders 30, and the end surfaces of the telescopic ends of the cylinder bodies are respectively fixed with an inverted T-shaped second fixture block 31 which respectively faces to a first fixture block 29;
the upper part of the upper section of the step through hole 25 is filled with lubricating oil, the lower part of the upper section of the step through hole 25 is provided with a cylindrical sealing rubber plug 32 which separates the lubricating oil at the upper part of the upper end of the step through hole 25, the middle part of the lower surface of the sealing rubber plug 32 extends downwards to form a push rod 33, and the lower end of the push rod passes through the lower section of the step through hole 25 and abuts against the upper surface of the jacking block 26;
the vertical side surfaces of a pair of bottom plates of the sliding block 18 are recessed to form a first clamping groove which is penetrated along the length direction of the amplitude variation track 2 and is matched with the first clamping block 29; the inner surfaces of the pair of bottom plates are both recessed to form an inverted T-shaped second clamping groove which is communicated along the length direction of the amplitude variation track 2; which is engaged with the second latch 31.
In this kind of technical scheme, lubricated mode has two kinds: one is that after the amplitude variation track 2 is hoisted in place and before the amplitude variation cross beam 3 is installed, the upper end of the step through hole 25 is filled with lubricating oil, then at least one pair of sliding blocks 18 are installed on the amplitude variation track 2, and the pair of sliding blocks 18 are fixedly connected with the cross beam of the middle support leg 9, wherein one sliding block 18 faces one end of the amplitude variation track 2 provided with the step through hole 25, as shown in fig. 9, and the second clamping blocks 31 of a pair of vertical oil cylinders 30 are respectively inserted into the corresponding second clamping grooves, meanwhile, the first clamping blocks 29 are respectively inserted into the corresponding first clamping grooves, then the telescopic rods of the vertical oil cylinders 30 are retracted, so that the second clamping blocks 31 drive the sliding blocks 18 to move upwards, so that the lower surface of the top plate of the amplitude variation sliding blocks 18 is separated from the top surface of the amplitude variation track 2 to form gaps, meanwhile, the sliding blocks 18 drive the jacking blocks 26 to, the sliding block 18 and the amplitude variation track 2 are lubricated, and an auxiliary oil cylinder can be adopted to assist and synchronously push the cross beam of the middle supporting leg 9 upwards in the retraction process of the telescopic rod of the vertical oil cylinder 30. After the lubricating oil enters the gap, the vertical oil cylinder 30 extends, the sliding block 18 is returned to the amplitude variation track 2, and then the state of fig. 9 is returned, and the lubrication is finished.
Alternatively, after the amplitude variation track 2 is hoisted in place and before the amplitude variation beam 3 is installed, the upper end of the step through hole 25 is filled with lubricating oil, then the top surface of the amplitude variation track 2 is lubricated by using a slide block 18, so that the slide block 18 faces the end of the amplitude variation track 2 provided with the step through hole 25, as shown in fig. 9, the second fixture blocks 31 of the pair of vertical oil cylinders 30 are respectively inserted into the corresponding second fixture grooves, meanwhile, the first fixture blocks 29 are respectively inserted into the corresponding first fixture grooves, then the telescopic rods of the vertical oil cylinders 30 are retracted, so that the second fixture blocks 31 drive the slide block 18 to move upwards, the lower surface of the top plate of the slide block 18 is separated from the top surface of the amplitude variation track 2 to form a gap, meanwhile, the slide block 18 drives the jacking block 26 to move upwards, the jacking block 26 jacks the push rod 33 upwards, so that the lubricating oil enters between the gap, after the lubricating oil enters the gap, the vertical oil cylinder 30 extends, the sliding block 18 is returned to the amplitude variation track 2, then the state shown in fig. 9 is recovered, and then the transverse moving oil cylinder 7 is adopted to slide the sliding block 18 from one end of the amplitude variation track 2, which is provided with the step, to the other end, so that the lubrication of the top surface of the whole amplitude variation track 2 is completed.
In another technical scheme, the second end face at the other end of the web 23 of the variable amplitude track 2 is recessed along the length direction of the variable amplitude track 2 to form a blind hole, which is adjacent to the square groove 24;
the top surface of the amplitude variation track 2 is recessed to form a plurality of circular holes penetrating through the blind holes, and the diameter of the circular holes is 1-2 cm.
In the technical scheme, the redundant lubricating oil on the top surface of the amplitude variation track 2 can flow into the blind hole from the round hole and flow to the second end surface of the amplitude variation track 2 through the blind hole, and then the lubricating oil is recovered manually.
In another technical scheme, a sealing plug cover is arranged at the top of the step through hole 25.
In this kind of technical scheme, set up the sealing plug lid, convenient operation, when vertical cylinder 30 retracts, push rod 33 need be with the sealing plug lid back-off.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (3)
1. A novel bridge girder erection machine transverse cross-web method is characterized by comprising the following steps:
s1, respectively installing a pair of amplitude variation tracks on the pier tops of two adjacent pairs of piers with left and right amplitudes along the transverse bridge direction;
s2, sliding the corresponding amplitude-variable cross beam on the amplitude-variable track until the two ends of the amplitude-variable cross beam are respectively positioned above the pier tops of the pier of the left amplitude and the right amplitude, adjusting the level of the amplitude-variable cross beam and fixing the amplitude-variable cross beam on the pier tops of the pier of the left amplitude and the right amplitude;
s3, transversely moving the bridge girder erection machine from one to the other on a pair of amplitude-variable cross beams;
the amplitude variation track is made of I-shaped steel, the amplitude variation cross beam is arranged on the amplitude variation track in a manner that the amplitude variation cross beam can slide along the length direction of the amplitude variation track through a sliding block, the sliding block is in a square shape, the lower surface of the sliding block is sunken inwards to form an inverted T-shaped sliding groove, and the sliding groove penetrates through the amplitude variation track along the length direction; the sliding grooves enable the sliding blocks to form a pair of bottom plates, a top plate and a pair of vertical side plates; the pair of vertical side plates of the sliding groove respectively abut against the pair of upper flange plates of the variable amplitude track, the sliding block is sleeved on the variable amplitude track through the sliding groove of the sliding block, and the lower surface of the top plate of the sliding block is attached to the top surface of the variable amplitude track;
the upper part of the first end surface of one end of the web plate of the amplitude variation track is recessed to form a square groove; the top surface of the amplitude variation track is recessed to form a vertical step through hole which penetrates through the square groove and is large at the top and small at the bottom; the square groove is internally provided with a jacking block which comprises an upper part and a lower part which are integrally formed, the upper part of the jacking block is in a square shape, and the lower part of the jacking block is in a cylindrical shape arranged at the center of the bottom surface of the upper part; a pair of opposite and vertical outer side surfaces at the upper part of the jacking block extend along the width direction of the amplitude-variable track to form a first clamping block protruding out of a web plate of the amplitude-variable track; the distance between the top surface of the jacking block and the top of the square groove is 10-20 cm, the bottom surface of the upper part of the jacking block is attached to the bottom of the square groove, and the lower part of the jacking block is built in the web plate;
the lower surfaces of a pair of upper wing plates of the amplitude variation track are symmetrically provided with cylinder bodies of a pair of vertical oil cylinders, and the end surfaces of the telescopic ends of the cylinder bodies are respectively fixed with an inverted T-shaped second clamping block which respectively faces to a first clamping block;
the upper part of the upper section of the step through hole is filled with lubricating oil, the lower part of the upper section of the step through hole is provided with a cylindrical sealing rubber plug which separates the lubricating oil at the upper part of the upper end of the step through hole, the middle part of the lower surface of the sealing rubber plug extends downwards to form a push rod, and the lower end of the push rod penetrates through the lower section of the step through hole and abuts against the upper surface of the jacking block;
the vertical side surfaces of a pair of bottom plates of the sliding block are recessed inwards to form a first clamping groove which is communicated along the length direction of the amplitude variation track and is matched with the first clamping block; the inner surfaces of the pair of bottom plates are recessed to form an inverted T-shaped second clamping groove which is communicated along the length direction of the amplitude variation track; the second clamping block is matched with the first clamping block;
the step S1 specifically includes:
s11, moving the bridge girder erection machine on a constructed frame along the longitudinal bridge direction until the length of a pair of piers of which the front and rear cantilevers of the main girder exceed the frame is the same;
s12, mounting the front and rear supporting legs to be respectively adjacent to a pair of middle supporting legs, enabling the upright post of the rear supporting leg to be supported on the constructed beam surface, enabling the upright post of the front supporting leg to be supported on the pier top of the constructed pier post positioned in front, and enabling the front cross beam and the rear cross beam of the front and rear supporting legs to both support the main beam of the bridge girder erection machine;
s13, detaching the middle support legs, and respectively installing the upright columns of one pair of middle support legs to the pier tops of the front and rear pair of piers of the other bridge;
s14, installing a pair of amplitude variation tracks by adopting a tower crane, wherein one end of each amplitude variation track is fixed on the upright post of the middle supporting leg, and the other end of each amplitude variation track is arranged on the beam surface;
the step S2 specifically includes:
s21, adopting a crown block to slidably and respectively install the crossbeams of the pair of middle supporting legs on the pair of amplitude variation tracks, and positioning the crossbeams under the main beam of the bridge girder erection machine;
s22, sliding the cross beam of the middle support leg along the cross bridge and towards the other side along the amplitude-variable track for 8-12 meters;
s23, hoisting a pair of amplitude-variable connecting beams to the position right below a main beam of the bridge girder erection machine by using a crown block, and respectively connecting the pair of amplitude-variable connecting beams with a pair of cross beams of the middle support leg;
s24, sliding the pair of amplitude-variable connecting beams on the amplitude-variable track to enable the cross beams of the pair of middle supporting legs to be respectively positioned above the upright posts of the pair of middle supporting legs;
s25, hoisting a pair of amplitude variation middle support legs to the amplitude variation track by using a crown block, and respectively connecting the pair of amplitude variation middle support legs with a pair of amplitude variation crossbeams;
s26, respectively detachably fixing a pair of middle support leg cross beams on the upright posts of the middle support legs, and respectively detachably fixing a pair of amplitude-variable middle support legs on the beam surface;
further comprising: the step S3 specifically includes:
s31, mounting a pair of trolleys at one end of each amplitude variation beam, and enabling the main beam of the bridge girder erection machine to fall on all the trolleys;
s32, under the synchronous pushing of the pair of transverse moving oil cylinders, the trolleys on the tops of the piers of the front pier and the rear pier are synchronous, and move from one end of the amplitude-variable cross beam to the other end of the amplitude-variable cross beam along the transverse bridge direction, so that the bridge girder erection machine falling on the trolleys completes amplitude variation.
2. A novel bridge girder erection machine traverse amplitude method as claimed in claim 1, wherein the second end face of the other end of the web of the amplitude variation track is recessed along the length of the amplitude variation track to form a blind hole which is adjacent to the square groove;
the top surface of the amplitude variation track is recessed to form a plurality of circular holes penetrating through the blind holes, and the diameter of the circular holes is 1-2 cm.
3. A new bridge girder erection machine traverse over-width method as claimed in claim 1, wherein a sealing plug is provided on the top of said stepped through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811436437.4A CN109629422B (en) | 2018-11-28 | 2018-11-28 | Novel transverse moving and amplitude-passing method of bridge girder erection machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811436437.4A CN109629422B (en) | 2018-11-28 | 2018-11-28 | Novel transverse moving and amplitude-passing method of bridge girder erection machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109629422A CN109629422A (en) | 2019-04-16 |
| CN109629422B true CN109629422B (en) | 2021-03-23 |
Family
ID=66070025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811436437.4A Active CN109629422B (en) | 2018-11-28 | 2018-11-28 | Novel transverse moving and amplitude-passing method of bridge girder erection machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109629422B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258348B (en) * | 2019-07-16 | 2021-06-18 | 重庆建工集团股份有限公司 | Single-amplitude slide rail matched multifunctional middle support leg walking type transverse moving amplitude changing mechanism of bridge girder erection machine |
| CN110552292A (en) * | 2019-08-05 | 2019-12-10 | 中交一公局第二工程有限公司 | construction method for changing single-width into double-width beam erection of integral bridge span |
| CN110792040B (en) * | 2019-10-28 | 2021-06-18 | 中国水利水电第五工程局有限公司 | Hoisting method for hoisting T-shaped beam of separated bridge deck |
| CN111893895B (en) * | 2020-08-06 | 2022-05-20 | 中铁九局集团第七工程有限公司 | Construction method for changing single-width frame beam into double-width frame beam on bent cap |
| CN113526372B (en) * | 2021-06-11 | 2024-01-12 | 浙江省建设工程机械集团有限公司 | Double pier body construction tower crane and viaduct construction method |
| CN115217040B (en) * | 2022-05-26 | 2024-11-01 | 中交第四公路工程局有限公司 | Incremental launching construction method for composite beam of overlength curve steel box |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09256323A (en) * | 1996-03-22 | 1997-09-30 | Mitsui Miike Mach Co Ltd | Bridge girder installing apparatus |
| JP2001146716A (en) * | 1999-11-22 | 2001-05-29 | Shimizu Corp | Erection method for bridge beam |
| CN103016520A (en) * | 2012-12-17 | 2013-04-03 | 徐州市亿龙机电科技有限公司 | Linear guide rail |
| CN202989782U (en) * | 2012-12-21 | 2013-06-12 | 中铁十一局集团有限公司 | Front leg of 900-ton bridge erecting machine capable of traversing |
| CN203007851U (en) * | 2012-12-28 | 2013-06-19 | 中铁十一局集团有限公司 | Middle support leg capable of transversely moving in modularized way for bridge erecting machine |
| CN204435240U (en) * | 2014-12-23 | 2015-07-01 | 郑州新大方重工科技有限公司 | The midfoot support device of novel large-tonnage Bridge Erector |
| CN104631335B (en) * | 2015-02-05 | 2016-06-29 | 郑州新大方重工科技有限公司 | Large-tonnage Bridge Erector and construction method thereof |
| CN204715212U (en) * | 2015-03-31 | 2015-10-21 | 中交二航局第四工程有限公司 | A kind of guiding device for mobile formwork girder whole lateral moving |
| CN206104401U (en) * | 2016-08-28 | 2017-04-19 | 芜湖市特种设备监督检验中心 | Automatic ash removal device of bridge crane track |
| CN206336287U (en) * | 2016-10-28 | 2017-07-18 | 中国人民解放军国防科学技术大学 | A kind of magnetic-levitation train is anti-to inhale dead self-lubricating device and magnetic-levitation train |
| CN206902568U (en) * | 2017-07-07 | 2018-01-19 | 武汉通联路桥机械技术有限公司 | A kind of new jib lubbing mechanism |
| CN107687132B (en) * | 2017-09-29 | 2019-03-08 | 中交第二航务工程局有限公司 | The method that equidistant double width bridge uses Segmental assembling bridge-erecting machine synchronous construction |
| CN207812303U (en) * | 2017-12-19 | 2018-09-04 | 孔锴 | Rest device in Bridge Erector |
| CN108532463B (en) * | 2018-03-13 | 2020-03-31 | 中交二航局第二工程有限公司 | Transverse moving amplitude changing method for large bridge girder erection machine |
| CN208087078U (en) * | 2018-04-19 | 2018-11-13 | 郑州新大方重工科技有限公司 | A kind of boom hoisting of large span steel reinforced concrete combination beam Bridge Erector |
| CN108797379B (en) * | 2018-07-03 | 2023-05-26 | 中交第二航务工程局有限公司 | Synchronous construction method for variable-spacing double-frame bridge by adopting segment assembly bridge girder erection machine |
-
2018
- 2018-11-28 CN CN201811436437.4A patent/CN109629422B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109629422A (en) | 2019-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109629422B (en) | Novel transverse moving and amplitude-passing method of bridge girder erection machine | |
| CN204875552U (en) | Frame bridge crane vertical lift structure | |
| JP4515996B2 (en) | Method and apparatus for erection of elevated bridge | |
| CN109653105B (en) | Main truss system of box girder bridge cantilever construction hanging basket and use method thereof | |
| CN106759845B (en) | A kind of construction method of Steel corridor | |
| CN201962607U (en) | Movable elevating device for hoisting elevated bridge cantilever arm | |
| CN103015327A (en) | Synchronous hydraulic die side jacking device of bridge climbing die frame and pier construction method | |
| CN110205948B (en) | Wide bridge girder erection machine and erection method thereof | |
| CN115787487B (en) | Construction method of continuous beam variable cross-section bridge fabrication machine | |
| CN114657884A (en) | Descending type movable formwork construction method for abutment assembling and segmented propelling | |
| CN206625845U (en) | A kind of inverted arch trestle | |
| CN214143337U (en) | Installation device of composite cable saddle of narrow cavern of mountain suspension bridge | |
| CN210368664U (en) | Wide-body bridge girder erection machine | |
| CN111945572B (en) | Multi-connected arch bridge erecting machine and multi-connected arch bridge erecting method | |
| CN205804178U (en) | Scalable without holder device for the liftable of bridge coping construction | |
| CN210856941U (en) | Bridge prestress tensioning trolley | |
| CN210217757U (en) | Overlength lining cutting platform truck | |
| CN113774813A (en) | Traction deviation rectifying equipment convenient for installing large-section steel truss box girder | |
| CN210477296U (en) | Special guardrail of mould and special mould is pour to high security roof beam body | |
| CN217601226U (en) | Segmental assembling bridge girder erection machine | |
| CN112320584B (en) | Three-dimensional bridge floor crane for steel box girder and steel box girder hoisting method | |
| CN212769526U (en) | Lower bearing lifting type bridge floor crane | |
| CN214883016U (en) | Descending type movable formwork support leg lifting mechanism | |
| CN214613654U (en) | Bridge maintenance device | |
| CN217499962U (en) | Multifunctional bridge girder erection machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Cui Hongpu Inventor after: Luo Ping Inventor after: Li Yufei Inventor after: Zeng Yusheng Inventor after: Leng Zhijian Inventor after: Yu Miao Inventor after: Meng Yongqing Inventor before: Cui Hongpu Inventor before: Luo Ping Inventor before: Li Yufei Inventor before: Zeng Yusheng Inventor before: Leng Zhijian Inventor before: Yu Miao Inventor before: Meng Yongqing |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220214 Address after: 430048 No. 11 Jinyinhu Road, Dongxihu District, Wuhan City, Hubei Province Patentee after: CCCC SECOND HARBOR ENGINEERING Co.,Ltd. Patentee after: CCCC Wuhan harbor engineering design and Research Institute Co., Ltd Address before: 430048 No. 11 Jinyinhu Road, Dongxihu District, Wuhan City, Hubei Province Patentee before: CCCC SECOND HARBOR ENGINEERING Co.,Ltd. |