CN107604828B - Bridge girder erection machine for double T-shaped girder bridge - Google Patents
Bridge girder erection machine for double T-shaped girder bridge Download PDFInfo
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- CN107604828B CN107604828B CN201710835369.8A CN201710835369A CN107604828B CN 107604828 B CN107604828 B CN 107604828B CN 201710835369 A CN201710835369 A CN 201710835369A CN 107604828 B CN107604828 B CN 107604828B
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Abstract
The invention relates to the technical field of double-T-shaped girder bridge erecting equipment, and provides a bridge erecting machine for a double-T-shaped girder bridge. The bridge girder comprises a girder, wherein two hanging girder trolleys capable of moving along the length direction of the girder are arranged on the girder, the rear part of the girder is erected on a bridge deck through a telescopic rear guide post, a telescopic front guide post is arranged at the front part of the girder, the front guide post is erected on a bridge pier at a girder to be erected through an extension joint at the bottom, and a supporting leg capable of moving along the length direction of the girder is also arranged at the front part of the girder; the hanging beam trolley comprises a movable trolley and a transverse beam which moves transversely. The girder erection machine can complete the whole via hole of the equipment by only relying on the mutual cooperation of the three supporting legs, is simple to operate and clear in steps, greatly reduces the via hole time of the equipment and improves the via hole efficiency. In addition, through the front guide post and the rear guide post which can be lifted, the whole lifting of the equipment can be realized, the beam replacement process is not influenced by natural conditions such as wind power, the beam falling can not cause deviation, and the beam replacement efficiency is improved.
Description
Technical Field
The invention relates to the technical field of double-T-shaped girder bridge erecting equipment, in particular to a bridge erecting machine for a double-T-shaped girder bridge.
Background
For the construction of a simply supported girder bridge on a newly built railway line, a plurality of shaping bridge girder erection machines exist at present, and by means of the devices, the safe and efficient erection of the whole-hole precast girder can be realized, so that the bridge construction speed is greatly improved. However, the height of the whole bridge girder erection machine can reach 8m during construction operation of the existing bridge girder erection machine, and the whole bridge girder erection machine is severely overrun, so that the existing bridge girder erection machine cannot be suitable for the condition that a new porous girder is required to be erected continuously after an old girder is dismantled under the existing line condition, and a novel bridge girder erection machine structure type is required to be provided.
Disclosure of Invention
The invention aims to provide girder erection construction equipment capable of safely and efficiently completing a whole-hole simply-supported T-shaped girder.
In order to achieve the above purpose, the invention provides a bridge girder erection machine of a double-T-shaped girder bridge, which comprises a girder, wherein two hanging girder trolleys capable of moving along the length direction of the girder are arranged on the girder, the rear part of the girder is erected on a bridge deck through a telescopic rear guide post, the front part of the girder is provided with a telescopic front guide post, the front guide post is erected on a bridge pier at a girder to be erected through an extension joint at the bottom, and the front part of the girder is also provided with a supporting leg capable of moving along the length direction of the girder; flanges are arranged on two lateral sides of the main beam; the lifting beam trolley comprises a movable trolley and a cross beam, a driving wheel matched with the top sides of flanges on two sides of the main beam is arranged at the top of the movable trolley, and the driving wheel is used for driving the movable trolley to move along the length direction of the main beam; the bottom side of the hanging beam trolley is provided with a mounting groove, the cross beam is mounted in the mounting groove and moves transversely relative to the main beam through a driving mechanism, and the cross beam is provided with a winch.
Preferably, the front guide post and the rear guide post are telescopic cylinders.
Preferably, the bottoms of the front guide post and the rear guide post are respectively provided with a foot seat.
Preferably, the crane sleeper beam further comprises two rows of rails and a plurality of crane sleeper beams, wherein the crane sleeper beams are erected on T-shaped beam bridges on two sides of the beam replacing position, and the two rails are erected on the crane sleeper beams on two sides of the beam to be replaced respectively.
Preferably, two ends of the plurality of crane sleeper beams extend out of two sides of the track and are used for supporting the front guide post and the rear guide post.
Preferably, the beam feeding device further comprises two beam transporting trolleys, wherein the two beam transporting trolleys are used for feeding beams to the two beam hanging trolleys.
Preferably, the lifting beam trolley further comprises two cushion blocks, wherein the two cushion blocks are movably arranged below the two lifting beam trolleys.
From the above, the girder erection machine can complete the whole via hole of the equipment by only relying on the mutual matching of the three supporting legs, is simple to operate and clear in steps, greatly reduces the via hole time of the equipment and improves the via hole efficiency. In addition, the front guide post and the rear guide post which can be lifted can realize the integral lifting of the equipment, so that the beam replacement process is not influenced by natural conditions such as wind power, deviation caused by beam falling is avoided, and the beam replacement efficiency is improved; in addition, the lifting height of the equipment in the construction process can be effectively reduced, the beam replacement operation of the T-shaped beam can be smoothly completed under the working condition with the requirement of building limit, and the frame replacement construction of the whole-hole simply-supported T-shaped beam can be safely and efficiently completed in a skylight point on the premise of ensuring that the original line equipment is not affected unnecessarily.
Drawings
FIG. 1 is a perspective view of a bridge girder erection machine of a double T-shaped girder bridge according to an embodiment of the present invention;
FIG. 2 is an enlarged view at A in FIG. 1;
FIG. 3 is a first view of a via state of a bridge girder erection machine of a double T-shaped girder bridge according to an embodiment of the present invention;
FIG. 4 is a second view of a via hole of a bridge girder erection machine of a double T-shaped girder bridge according to the embodiment of the present invention;
FIG. 5 is a third view of a via hole of a bridge girder erection machine of a double T-shaped girder bridge according to the embodiment of the present invention;
FIG. 6 is a first girder erection state diagram of a girder erection machine of a double T-shaped girder bridge according to the embodiment of the present invention;
FIG. 7 is a second girder erection state diagram of a girder erection machine of a double T-shaped girder bridge according to the embodiment of the present invention;
fig. 8 is a third girder erection state diagram of a girder erection machine of a double-T-shaped girder bridge according to the embodiment of the present invention.
Reference numerals:
1. a hanging beam trolley; 2. a rear guide post; 3. a main beam; 4. a front guide post; 5. a cushion block; 6. a lengthening section; 7. a support leg; 8. bridge piers; 9. a beam transporting trolley; 10. a beam is to be erected; 11. a hoisting rope; 12. a moving trolley; 13. a cross beam; 14. flanges.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 and 2, the girder replacing machine for a double-T-shaped girder bridge provided by the embodiment of the invention comprises a main girder 3, wherein two girder hanging trolleys 1 capable of moving along the length direction of the main girder 3 are arranged on the main girder 3, and the girder hanging trolleys 1 are used for hanging a new girder to be erected; the rear part of the girder 3 is erected on the bridge deck through a telescopic rear guide post 2, the front part of the girder 3 is provided with a telescopic front guide post 4, the front guide post 4 is erected on a bridge pier 8 at a girder 10 to be erected through a lengthening joint 6 at the bottom, the front part of the girder 3 is also provided with a supporting leg 7 capable of moving along the length direction of the girder, and the front guide post 4 and the rear guide post 2 can be respectively provided with a telescopic oil cylinder, so that the girder 3 and two hanging beam trolleys 1 can be lifted and lowered, and the lifting and falling of a new girder to be erected are realized.
Flanges 14 are arranged on two lateral sides of the main beam 3; the hanging beam trolley 1 comprises a movable trolley 12 and a cross beam 13, wherein driving wheels matched with the top sides of flanges 14 on two sides of the main beam 3 are arranged at the top of the movable trolley 12, namely, two rows of driving wheels are arranged at the top of the movable trolley 12, the movable trolley 12 is hung on the main beam 3 through the matching of the two rows of driving wheels and the flanges 14 on two sides of the main beam 3, and the driving wheels are used for driving the movable trolley 12 to move along the length direction of the main beam 3; the bottom side of the hanging beam trolley 1 is provided with a mounting groove, a cross beam 13 is arranged in the mounting groove and moves transversely relative to the main beam 3 through a driving mechanism, a winch is arranged on the cross beam 13, a winch rope 11 of the winch is used for binding a new beam to be erected or an old beam to be replaced, the new beam to be erected or the old beam to be erected is tightly bound below the main beam 3 through shrinkage of the winch rope 11, and further eccentric lifting of the T-shaped beam is achieved through transverse movement of the cross beam 13 relative to the main beam 3, and replacement of the upper side and the lower side beam frames of the T-shaped beam bridge is achieved.
Referring to fig. 3 to 5, when the bridge girder erection machine passes through the hole, the front guide post 4 and the rear guide post 2 of the bridge girder erection machine shrink, two hanging beam trolleys 1 on the main girder 3 are supported on the bridge deck of the bridge girder erection machine, the bottom ends of the front guide post 4 and the rear guide post 2 leave the bridge deck, the hanging beam trolleys 1 drive the main girder 3 to move forwards, in the process of driving the main girder 3 to move forwards, the hanging beam trolleys 1 are firstly supported on the bridge piers 8 through movable supporting legs 7 at the front end of the main girder 3, so that the front end of the main girder 3 is temporarily supported until the front guide post 4 and the rear guide post 2 respectively move above the two bridge piers 8 at the bridge girder erection position, and the front guide post 4 and the rear guide post 2 extend downwards and are supported on the two bridge piers 8 at the bridge girder erection position, so that the main girder 3 is upwards supported.
Referring to fig. 6 to 8, when the girder is erected, the two girder-lifting trolleys 1 move to the rear end of the girder 3 and cooperate with the two girder-transporting trolleys 9 one by one to feed the girder, after the two girder-lifting trolleys 1 lift the new girder to be erected above the girder-erecting position, the front guide post 4 and the rear guide post 2 shrink, the new girder to be erected falls along with the girder 3, and the girder is erected on the bridge pier 8.
The girder erection machine can complete the whole via hole of the equipment by only relying on the mutual matching of the three supporting legs 7, is simple to operate, has definite steps, greatly reduces the via hole time of the equipment and improves the via hole efficiency. In addition, through the front guide post 4 and the rear guide post 2 which can be lifted, the whole lifting of the equipment can be realized, the beam replacement process is not influenced by natural conditions such as wind power, deviation caused by beam falling can be avoided, and the beam replacement efficiency is improved; in addition, the lifting height of the equipment in the construction process can be effectively reduced, the beam replacement operation of the T-shaped beam can be smoothly completed under the working condition with the requirement of building limit, and the frame replacement construction of the whole-hole simply-supported T-shaped beam can be safely and efficiently completed in a skylight point on the premise of ensuring that the original line equipment is not affected unnecessarily.
In some embodiments, the bottoms of the front guide post 4 and the rear guide post 2 are provided with a foot seat, the foot seat can increase the supporting strength and stability of the front guide post 4 and the rear guide post 2, and the cross section area of the foot seat is preferably larger than that of the front guide post 4 and the rear guide post 2, so that the supporting stress area is larger, and the supporting is smoother.
The system also comprises two rows of rails and a plurality of crane sleeper beams, wherein the crane sleeper beams are erected on T-shaped beam bridges at two sides of the beam replacing position, the two rails are respectively erected on the crane sleeper beams at two sides of the beam to be replaced, and the two rails are special rails for each beam transporting special column and beam transporting trolley 9.
Furthermore, both ends of the plurality of crane sleeper beams extend out of both sides of the track and are used for supporting the front guide post 4 and the rear guide post 2, the crane sleeper beams are firm in material and stable in arrangement, and stable supports can be formed for the first inverted gantry, the second inverted gantry and the frame changing beam machine.
Referring to fig. 3 and 4, the girder changing machine preferably further comprises two cushion blocks 5, wherein the two cushion blocks 5 are movably cushioned below the two hanging beam trolleys 1, namely, when the front guide post 4 and the rear guide post 2 of the girder changing machine shrink during the hole passing, the two hanging beam trolleys 1 on the girder 3 are respectively supported on the existing girder erecting bridge deck through one cushion block 5, so that on one hand, the cushion height of the girder 3 can be increased, on the other hand, when the supporting leg 7 is supported on the bridge pier 8 during the forward movement of the hanging beam trolleys 1, the part of the girder 3 positioned behind the hanging beam trolleys 1 is less, and the rear end of the girder 3 is reached by the rear hanging beam trolleys 1, and at the moment, the cushion blocks 5 below the rear hanging beam trolleys 1 can be removed, so that the hanging beam trolleys 1 move forward along the girder 3, and the girder 3 is supported by the front hanging beam trolleys 1 and the supporting leg 7 and the forward movement of the front hanging beam trolleys 1 can be continued.
In addition, a winch is preferably further arranged below the hanging beam trolley 1, namely the hanging beam trolley 1 binds the to-be-erected beam 10 below the hanging beam trolley through the winch below, and in the process of passing holes, the hanging beam trolley 1 can increase the stability of the hanging beam trolley 1 through the binding of the winch below and the existing erecting beam.
In summary, the construction technology for the frame-changing beam provided by the invention can ensure that the whole-hole frame-changing construction of the simply-supported T-shaped beam on the existing line can be safely and rapidly completed in the skylight point on the premise of not causing any unnecessary damage to the existing line, effectively solves the problems of high manufacturing cost, high workload and long-term line sealing in the current frame-changing beam construction process, and can be used for the equipment of the road bureau working engineering.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solution of the present invention, and not limiting thereof; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. The bridge girder erection machine for the double-T-shaped girder bridge is characterized by comprising a girder, wherein two girder hanging trolleys capable of moving along the length direction of the girder are arranged on the girder, the rear part of the girder is erected on a bridge deck through a telescopic rear guide post, a telescopic front guide post is arranged at the front part of the girder and is erected on a pier at the girder to be erected through an extension joint at the bottom, the front guide post and the rear guide post are telescopic cylinders, when passing through holes, the front guide post and the rear guide post shrink, two girder hanging trolleys on the girder are supported on the bridge deck of the girder, the bottom ends of the front guide post and the rear guide post leave the bridge deck, the girder hanging trolleys drive the girder to move forwards, and the front part of the girder is also provided with supporting legs capable of moving along the length direction of the girder; flanges are arranged on two lateral sides of the main beam; the lifting beam trolley comprises a movable trolley and a cross beam, a driving wheel matched with the top sides of flanges on two sides of the main beam is arranged at the top of the movable trolley, and the driving wheel is used for driving the movable trolley to move along the length direction of the main beam; the bottom side of the hanging beam trolley is provided with a mounting groove, the cross beam is mounted in the mounting groove and moves transversely relative to the main beam through a driving mechanism, the cross beam is provided with a winch, and the hanging beam trolley binds a beam to be erected below the hanging beam trolley through the winch so as to increase the stability of the hanging beam trolley;
the lifting beam trolley further comprises two cushion blocks, wherein the two cushion blocks are movably arranged below the two lifting beam trolleys.
2. The bridge girder erection machine of the double-T girder bridge according to claim 1, wherein the bottoms of the front guide post and the rear guide post are provided with footrests.
3. The bridge girder erection machine of the double-T-shaped girder bridge according to claim 1, further comprising two rows of rails and a plurality of crane sleeper beams, wherein the crane sleeper beams are erected on the T-shaped girder bridge at two sides of the girder replacement position, and the two rails are erected on the crane sleeper beams at two sides of the girder to be replaced respectively.
4. A bridge girder erection machine of a double T-beam bridge according to claim 3, wherein both ends of a plurality of the hoist sleeper beams extend out of both sides of the track for supporting the front and rear guide posts.
5. The bridge girder erection machine of a double T-beam bridge of claim 1, further comprising two girder transporting trolleys, the two girder transporting trolleys being used for feeding girders to the two girder hanging trolleys.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710835369.8A CN107604828B (en) | 2017-09-15 | 2017-09-15 | Bridge girder erection machine for double T-shaped girder bridge |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710835369.8A CN107604828B (en) | 2017-09-15 | 2017-09-15 | Bridge girder erection machine for double T-shaped girder bridge |
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| CN107604828A CN107604828A (en) | 2018-01-19 |
| CN107604828B true CN107604828B (en) | 2023-09-29 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108643022B (en) * | 2018-05-18 | 2020-01-07 | 江西电力职业技术学院 | Movable road bridge and road bridge vehicle |
| CN110258359B (en) * | 2019-07-31 | 2020-11-06 | 河南省交通规划设计研究院股份有限公司 | Construction method of height-variable steel beam through hoisting and pushing bracket construction |
| CN110258358B (en) * | 2019-07-31 | 2020-11-06 | 河南省交通规划设计研究院股份有限公司 | Method for constructing variable-height steel beam by adopting hoisting and pushing support |
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