CN110735404A - Variable width guide beam - Google Patents
Variable width guide beam Download PDFInfo
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- CN110735404A CN110735404A CN201911176804.6A CN201911176804A CN110735404A CN 110735404 A CN110735404 A CN 110735404A CN 201911176804 A CN201911176804 A CN 201911176804A CN 110735404 A CN110735404 A CN 110735404A
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- guide beam
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- bridge
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- 238000010276 construction Methods 0.000 claims abstract description 16
- 238000012546 transfer Methods 0.000 claims description 31
- 230000007246 mechanism Effects 0.000 claims description 30
- 230000008878 coupling Effects 0.000 claims 3
- 238000010168 coupling process Methods 0.000 claims 3
- 238000005859 coupling reaction Methods 0.000 claims 3
- 238000000034 method Methods 0.000 description 14
- 210000001503 joint Anatomy 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000008602 contraction Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
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Abstract
The invention relates to the technical field of bridge replacement equipment, and provides variable-width guide beams, which comprise two longitudinal beams, two cross beams and an adjusting device, wherein the two longitudinal beams can be used for construction equipment to walk, the width between the two longitudinal beams is larger than that of a bridge to be disassembled, the two cross beams are used for connecting the two longitudinal beams, the two cross beams are respectively supported on the two bridges adjacent to the bridge to be disassembled, two ends of the two cross beams are hinged with the longitudinal beams, and the adjusting device is used for driving the longitudinal beams to swing along the hinged parts of the longitudinal beams and the cross beams.
Description
Technical Field
The invention relates to the technical field of bridge replacement equipment, in particular to variable-width guide beams.
Background
some bridges are not long in construction time, because the existing lines, especially the main trunk lines, are not always accelerated and the heavy-duty trains pass through, the strength or rigidity of the existing lines cannot meet the requirements and have to be replaced.
In addition, in our country, a large number of steel girders are used in the past railway construction, the service life of the steel girders is obviously shorter than that of concrete girders, the maintenance workload of the steel girders is large, and the maintenance cannot be carried out in some places at all, which causes that part of the steel girders need to be replaced before the strength life of the part of the steel girders is not reached, therefore, the research of or several safe and reliable existing railway line bridge replacement methods is urgent for different bridge forms.
The existing railway line bridge replacement method in China comprises a method for replacing existing line bridges in a fully closed mode and a method for replacing existing line bridges in an intermittent closed mode.
The totally-enclosed frame beam replacing idea is to construct temporary lines or temporary bridges near the existing railway bridges; the train passes through temporary suspension lines or temporary bridges, and bridge replacement is mainly carried out by using a bridge erecting machine. The operation mode does not need to interrupt the driving, is suitable for bridges in riverways or valleys, but needs to construct temporary lines or temporary bridges, needs to restore lines after frame replacement, is high in cost, needs to limit speed when long-time trains pass the temporary lines (temporary bridges), needs to carry out point construction when the temporary lines are in butt joint with the main lines and the main lines are in butt joint with the main lines, and frequently disturbs the lines, so that the instability of roadbeds and road beds is caused, the speed limiting time is long, and the influence on the main point operation of the trains is large; the construction and dismantling of the toilet bowl has great influence on the environment.
The concept of discontinuously closing the bridge to replace the frame beam is to use the scheme of dragon to hang or support to move transversely to implement the bridge to replace the frame operation by adjusting the train operation diagram or the train operation gap, the operation mode does not need to build the temporary line, has less cost and no environmental pollution, has short preparation time, can carry out the bridge replacement operation in a short time, has small disturbance on the existing line, can restore the normal operation in a short time after the frame replacement is finished, the preparation operation is carried out on line, has no interference on the existing line, but cannot be suitable for the bridge at the upper part of the valley or the river, and the safety reliability of the equipment and the length of the closing time become the important of the scheme because the temporary line for the vehicles to detour is not available for the bridge replacement of the existing line.
For the existing problems, sets of brand-new construction technology and equipment suitable for replacing the frame of the railway beam bridge with various bridge pier heights or underbridge topography and landform are urgently needed to be provided, a new thought and method are provided for the frame replacing engineering of the bridge, and the whole frame replacing construction of the whole-hole simply-supported beam, the track panel and the turnout is safely and efficiently completed in a skylight point on the premise of lowest interference on original line equipment.
The solving methods are that a guide beam is arranged at a position of a railway beam to be replaced, a dragon is hung on the guide beam to be detached and replaced, in the working process, firstly, a dragon and a new beam are transported to a construction site through two special beam transportation columns, meanwhile, the guide beam is driven to move to the bridge replacement position through a guide beam transfer trolley, the two special beam transportation columns are positioned at two sides of the guide beam, after the guide beam is placed, a dragon hanging frame is installed on the guide beam through a dragon support, the dragon is hung on the guide beam to perform old beam dismounting and mounting work of the new beam, and the beam replacement process is completed.
However, in order to realize the whole replacement of the whole hole beam, the width of the guide beam is larger than the width of the beam surface of the bridge, which causes the width of the guide beam to be larger, and when the guide beam passes through a curve road section in the transportation process, the two end parts of the guide beam deviate from the central line, so that the over-limit phenomenon easily occurs, and the normal transportation of the guide beam is influenced.
Disclosure of Invention
In order to solve the above technical problem or at least partially solve the above technical problem, the present invention provides kinds of variable width guide beams.
The variable width guide beam includes:
the two longitudinal beams can be used for the construction equipment to walk, and the width between the two longitudinal beams is larger than that of the bridge to be dismantled;
the two cross beams are used for connecting the two longitudinal beams, the two cross beams are respectively supported on two bridges adjacent to the bridge to be disassembled, and two ends of the two cross beams are hinged with the longitudinal beams;
and the adjusting device is used for driving the longitudinal beam to swing along the hinged position of the longitudinal beam and the cross beam.
Optionally, a plurality of guide beam transfer vehicles are arranged on the guide beam, and each guide beam transfer vehicle is provided with a traveling mechanism for traveling on the bridge and a supporting mechanism for placing the longitudinal beam.
Optionally, each guide beam transfer trolley is provided with a rotating mechanism used for being connected with the longitudinal beam, and the rotating mechanism is rotatably arranged on the guide beam transfer trolley.
Optionally, a connecting rod is arranged at the bottom of the rotating mechanism, a connecting plate used for being connected with the connecting rod is arranged on the guide beam, a groove is formed in the longitudinal beam, and the connecting plate can be retracted into or extended out of the groove.
Optionally, the adjusting device comprises a rotating device arranged on at least of the guide beam transfer trolley, and the rotating device drives the rotating mechanism to rotate in the horizontal direction relative to the travelling mechanism.
Optionally, the rotating device is a driving motor vertically arranged in the guide beam transfer trolley, and an output shaft of the driving motor is connected with the rotating mechanism.
Optionally, the adjusting device comprises a telescopic device hinged between the cross beam and of the longitudinal beams.
Optionally, the telescopic device comprises a driving part and a telescopic part, the driving part is arranged on the longitudinal beam, and the telescopic part is detachably connected with the cross beam.
Optionally, a mounting groove is formed in the joint of the longitudinal beam and the telescopic device, the driving portion is hinged in the mounting groove, and the mounting groove can supply the driving portion to swing.
Optionally, two ends of each longitudinal beam extend out of the cross beam to form a guide beam for the construction equipment to walk, and the guide beam is hinged to the longitudinal beam.
Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages:
this application, with articulated setting between crossbeam and the longeron to drive the relative swing between longeron and the crossbeam through adjusting device, and then realize the horizontal shrink and the expansion of nose girder, thereby can greatly reduce the transverse width of nose girder when the transportation, ensure the normal transportation of nose girder, after the nose girder transported the work position, accessible adjusting device drove the nose girder expansion, steps of work under going on, simple structure, convenient operation.
Drawings
FIG. 1 is a schematic illustration of the movement of the guide beam, the th girder section and the second girder section to the construction site;
FIG. 2 is a schematic view of a dragon being hoisted onto a guide beam;
FIG. 3 is a schematic view of the removal of an old beam by hanging it through a dragon ;
FIG. 4 is a schematic view of a new beam being hung and mounted by a dragon ;
FIG. 5 is a schematic view after bridge replacement is complete;
FIG. 6 is a schematic view of a variable width guide beam in an embodiment of the present invention;
FIG. 7 is a top view of an embodiment of the present invention showing the variable width guide beam in an expanded configuration;
FIG. 8 is a top view of an embodiment of the present invention showing the variable width guide beam in a contracted condition;
FIG. 9 is a top view of an embodiment of the present invention with web plates on the variable width guide beam;
FIG. 10 is a schematic view of an embodiment of the present invention showing a variable width guide beam being carried by a guide beam transfer vehicle;
FIG. 11 is a top view of an embodiment of the present invention showing a variable width guide beam traveling on a transfer vehicle;
fig. 12 is a top view of a variable width guide beam with telescoping devices provided thereon in accordance with an embodiment of the present invention.
Reference numerals:
1. a stringer; 11. a connecting plate; 2. a cross beam; 21. a support portion; 22. a hinge portion; 3. a guide beam transfer trolley; 4. a telescopic part; 5. and a guide beam.
Detailed Description
In order that the above objects, features and advantages of the present invention may be more clearly understood, there is now provided a further detailed description of the invention in , taken in conjunction with the accompanying drawings and examples, it being understood that the embodiment described is part, but not all, of the embodiment of the invention.
Referring to fig. 1 to 5, the specific replacement process of the existing bridge is as follows:
the girder is hoisted on the special girder train, the replacement bridge is hoisted on the second special girder train, and the guide beam is driven to travel by the guide beam transfer trolley 3. as shown in fig. 1, the guide beam transfer trolley 3 drives the guide beam to move above the girder to be replaced, the guide beam is in the landing position, the th special girder train and the second special girder train are respectively transported to both sides of the bridge to be replaced. as shown in fig. 2, after the guide beam is completely in the landing position, the guide beam transfer trolley 3 moves to the side of the guide beam near the second special girder train, the girder hoisting transport vehicle at the bottom of the girder is hoisted to hoist the girder to travel on the special girder 2 until the end position of the guide beam is moved, the girder hoisting support is placed on the guide beam, as shown in fig. 3, the girder is hoisted on the guide beam to complete the process of disassembling the bridge, and the disassembled special girder 6853 is transported to the position 6853, the second special girder is transported to the position of the second special girder, and the crane is moved to the position of the second special girder 385, and the second special girder is connected to the second special girder, and the special girder is transported by the crane, and the crane is transported by the guide beam, and the crane is transported by the crane.
As shown in fig. 6, the variable width guide beam provided by the embodiment of the present application includes two longitudinal beams 1, two cross beams 2, and an adjusting device.
Referring to fig. 6, 7 and 8, two longitudinal beams 1 are provided for the traveling of construction equipment, preferably, the two longitudinal beams 1 are arranged in parallel, the construction equipment at the position is a dragon crane, the dismounting and mounting of the bridge are completed through a dragon crane, the width between the two longitudinal beams 1 is larger than that of the bridge to be dismounted, specifically, the two longitudinal beams 1 are arranged outside the vertical plane of the bridge edge, and the dismounting and mounting of the bridge to be dismounted are prevented, the two transverse beams 2 are used for connecting the two longitudinal beams 1, the two transverse beams 2 are respectively supported on the two bridges adjacent to the bridge to be dismounted, both ends of the two transverse beams 2 are hinged with the longitudinal beams 1, the longitudinal beams 1 are supported through the transverse beams 2, and the transverse beams 2 are placed on the bridge adjacent to the bridge to be dismounted, so that the space enclosed by the two transverse beams 2 and the two longitudinal beams 1 is larger than the size of the bridge to be dismounted, the dismounting of the bridge is convenient, and the width between the two longitudinal beams 1 is larger than that the hinge joints 2 are arranged on the bridge to be dismounted, therefore, both ends of the transverse beams 2 should extend out of the hinge joints, the hinge joints 1 are provided with the transverse beams 2, the hinge blocks 22, and the transverse beams 22 are provided for driving the hinge joints, and the vertical blocks 22 are provided for driving the bridge to swing in the bridge, and the vertical blocks are provided in the hinge joints 22, and the vertical blocks are provided in the bridge, and the vertical blocks 22.
This application sets up with articulating between crossbeam 2 and the longeron 1 to drive the relative swing between longeron 1 and the crossbeam 2 through adjusting device, and then realize the horizontal shrink and the expansion of nose girder, thereby can greatly reduce the transverse width of nose girder when the transportation, ensure the normal transportation of nose girder, after the nose girder transported the work position, accessible adjusting device drove the nose girder expansion, steps of work down, simple structure, convenient operation.
Referring to fig. 10 and 11, in , a plurality of guide beam transfer vehicles 3 are arranged on the guide beams, each guide beam transfer vehicle 3 is provided with a traveling mechanism for traveling on the bridge and a supporting mechanism for placing the longitudinal beam 1, the guide beam transfer vehicle 3 drives the guide beams to travel on the bridge, and further drives the guide beams to move to a working position, and the operation is convenient.
The traveling mechanism comprises a base arranged at the bottom of the guide beam transfer trolley 3 and a plurality of rollers arranged below the base, wherein the rollers are uniformly distributed at the bottom of the base, at least rollers are connected with a motor, the rollers are driven to rotate through the rotation of the motor, and then the guide beam transfer trolley 3 is driven to travel, so that the automatic control is realized, the labor cost is saved, the guide beam transfer trolley 3 is supported through the base, and the stability of the guide beam transfer trolley 3 in the traveling process is improved.
The supporting mechanism comprises supporting plates which are oppositely arranged on two sides of the vehicle body, the positions of the supporting plates correspond to the positions of the two longitudinal beams 1 of the guide beam in a contraction state, and the two longitudinal beams 1 of the guide beam are respectively supported at the tops of the two supporting plates. The correspondence here means that the two longitudinal beams 1 of the guide beam can be placed on the support plate in the retracted state of the guide beam. The distance between the end parts of the two supporting plates is smaller than the distance between the inner sides of the two longitudinal beams 1 of the guide beam in the unfolding state, the supporting plates are prevented from influencing the lowering of the guide beam, the distance between the end parts of the two supporting plates is larger than the distance between the inner sides of the two longitudinal beams 1 of the guide beam in the contraction state and smaller than the distance between the outer sides of the two longitudinal beams of the guide beam in the contraction state, the supporting plates can play a role in supporting the guide beam, meanwhile, the two ends of the supporting plates cannot stretch out of the two sides of the longitudinal beams 1, and the distance of the guide beam transfer trolley 3 in the transverse direction in the moving process is reduced. Preferably, the backup pad sets up at the top of base, provides the support for the backup pad through the base, increases the bearing capacity of backup pad for the backup pad can bear the great nose girder of weight, simultaneously, effectively increases the life of backup pad
The rotating mechanism is connected with the longitudinal beam 1 in various ways, as shown in the combined drawing of fig. 9, 10 and 11, if a connecting rod can be arranged at the bottom of the rotating mechanism, a connecting plate 11 for connecting with the connecting rod is arranged on the guide beam, specifically, a connecting hole is formed in the connecting plate 11, the rotating mechanism comprises a rotating arm arranged at the top of the guide beam transfer vehicle 3, a connecting rod matched with the connecting hole is arranged at the bottom of the rotating arm, the matching means that the connecting rod can be inserted into the connecting hole, is optimally arranged, a groove is formed in the longitudinal beam 1, the connecting plate can be retracted into or extended out of the groove, specifically, the connecting plate 11 is rotatably or telescopically arranged in the groove, when in use, the connecting plate 11 extends out of the longitudinal beam 1, the connecting rod is inserted into the connecting hole and fixed, wherein through holes can be formed in the connecting plate 11, the positions corresponding to the through holes are not limited, the through holes and the limiting can be completed sequentially, the connecting rod is conveniently arranged in a sliding mode, the connecting rod can be positioned between the longitudinal beam 1 and can be detachably matched with the rotating screw arranged at the top of the connecting rod, and the rotating mechanism can be matched with the rotating mechanism, and the connecting screw arranged at the top of the longitudinal beam, and the connecting rod can be matched with the rotating mechanism in a screw hole.
The adjusting device comprises rotating devices at least arranged on guide beam transfer vehicles 3, and the rotating mechanisms are driven by the rotating devices to rotate along the horizontal direction relative to the travelling mechanism, wherein the rotating devices can be arranged on guide beam transfer vehicles 3, or each guide beam transfer vehicle 3 is provided with a rotating device, and all the rotating devices rotate synchronously to complete the adjusting process.
, optimally, the rotating device is a driving motor vertically arranged in the guide beam transfer trolley 3, an output shaft of the driving motor is connected with a rotating mechanism, the rotating mechanism is driven to rotate by the rotation of the driving motor, and then the longitudinal beam 1 is driven to swing relative to the cross beam 2, so that the transverse contraction and expansion of the guide beam are realized, the structure is simple, and the realization is convenient.
In other embodiments, as shown in fig. 12, the adjusting device includes a telescopic device hinged between the cross beam 2 and of the longitudinal beams 1, wherein the telescopic device includes a driving portion and a telescopic portion 4, the driving portion is disposed on the longitudinal beams 1, the telescopic portion 4 is detachably connected to the cross beam 2, and the setting position and setting angle of the telescopic portion 4 and the driving portion can satisfy the telescopic requirement, that is, the telescopic portion 4 is driven by the driving portion to extend and retract, the longitudinal beams 1 and the cross beam 2 can swing relatively, when the guide beam is retracted, the end of the telescopic portion 4 is connected to the cross beam 2, the telescopic portion 4 is driven by the driving portion to move, so that the longitudinal beams 1 and the cross beam 2 swing relatively, and then the two longitudinal beams 1 approach to achieve the retraction of the guide beam, after the guide beam moves to the working position, the driving portion drives the telescopic portion 4 to move in the opposite direction, so that the two longitudinal beams 1 are far away from each other, the extension of the guide beam is completed, the lower step is performed, at this time, the telescopic portion 4 can be separated from the cross beam 2, and the.
optimally, a mounting groove is arranged at the joint of the longitudinal beam 1 and the telescopic device, the driving part is hinged in the mounting groove, and the mounting groove can be used for swinging the driving part.
the telescopic device of the present application can be a telescopic cylinder, a telescopic cylinder or an electric push rod, as long as it can provide enough driving force to complete the telescopic in the length direction.
Because the cross beam 2 is placed on a bridge, the movement of the dragon support can be hindered, and therefore, in order to facilitate the movement of the dragon to the guide beam, the two ends of each longitudinal beam 1 of the present application extend out of the cross beam 2 to form the guide beam 5 for the construction equipment to walk, and the width of the guide beam 5 should be larger than that of the dragon support, the dragon support drives the dragon to move between the two guide beams 5 and lift the dragon to for a certain height, so that the dragon can move to the longitudinal beam 1 to move to a working position for corresponding beam changing operation, the step is optimized, the guide beam 5 is hinged with the longitudinal beam 1, so that the guide beam 5 can swing relative to the longitudinal beam 1, during transportation, through the swing of the guide beam 5, the step shortens the length of the guide beam or reduces the width of the end part of the guide beam in the transverse direction, and the over-limited transportation phenomenon is avoided when the over-curved road section of a small radius curve, and the normal transportation of the guide beam is ensured.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present 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 solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1, kinds of variable width's nose girder characterized in that, includes:
the two longitudinal beams can be used for the construction equipment to walk, and the width between the two longitudinal beams is larger than that of the bridge to be dismantled;
the two cross beams are used for connecting the two longitudinal beams, the two cross beams are respectively supported on two bridges adjacent to the bridge to be disassembled, and two ends of the two cross beams are hinged with the longitudinal beams;
and the adjusting device is used for driving the longitudinal beam to swing along the hinged position of the longitudinal beam and the cross beam.
2. The variable width guide beam according to claim 1, wherein a plurality of guide beam transfer vehicles are provided on the guide beam, and each guide beam transfer vehicle is provided with a traveling mechanism for traveling on the bridge and a support mechanism for placing the longitudinal beam.
3. The variable width guide beam according to claim 2, wherein each guide beam transfer trolley is provided with a rotating mechanism for connecting with the longitudinal beam, and the rotating mechanism is rotatably arranged on the guide beam transfer trolley.
4. The variable width guide beam according to claim 3, wherein a connecting rod is provided at a bottom of the pivot mechanism, a coupling plate for coupling with the connecting rod is provided on the guide beam, and a groove is provided on the longitudinal beam, and the coupling plate is received in or extended out of the groove.
5. The variable width guide beam according to claim 3, wherein said adjusting means comprises a rotating means provided on at least of said guide beam trolleys, said rotating means being adapted to rotate said rotating mechanism in a horizontal direction relative to said traveling mechanism.
6. The variable width guide beam according to claim 5, wherein the rotating means is a driving motor vertically disposed in the guide beam transfer trolley, and an output shaft of the driving motor is connected to the rotating mechanism.
7. The variable width guide beam according to claim 1 wherein said adjustment means comprises a telescoping device hingedly disposed between said cross beam and of said side beams.
8. The variable width guide beam according to claim 7, wherein the telescoping device comprises a drive portion and a telescoping portion, the drive portion being disposed on the side beam, the telescoping portion being removably connected to the cross beam.
9. The variable width guide beam according to claim 8, wherein a mounting groove is formed at a connection part of the longitudinal beam and the telescopic device, the driving part is hinged in the mounting groove, and the mounting groove can be used for swinging of the driving part.
10. The variable width guide beam according to claim 1, wherein both ends of each longitudinal beam extend out of the cross beam to form a guide beam for construction equipment to walk, and the guide beam is hinged with the longitudinal beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911176804.6A CN110735404B (en) | 2019-11-26 | 2019-11-26 | Guide beam with variable width |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911176804.6A CN110735404B (en) | 2019-11-26 | 2019-11-26 | Guide beam with variable width |
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| Publication Number | Publication Date |
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| CN110735404A true CN110735404A (en) | 2020-01-31 |
| CN110735404B CN110735404B (en) | 2024-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911176804.6A Active CN110735404B (en) | 2019-11-26 | 2019-11-26 | Guide beam with variable width |
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| CN (1) | CN110735404B (en) |
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| CN2712993Y (en) * | 2004-07-20 | 2005-07-27 | 彭功根 | Lifting frame integrated bridge erector |
| CN1940183A (en) * | 2006-08-04 | 2007-04-04 | 铁道第五勘察设计院 | Continuous medium-spanning beamed motor bridge and its erection |
| CN201605539U (en) * | 2010-02-08 | 2010-10-13 | 李娟� | Novel telescopic guide-beam bridge girder erection machine |
| CN107386128A (en) * | 2017-09-15 | 2017-11-24 | 中铁第五勘察设计院集团有限公司 | Double-T shaped beam bridge changes beam construction system |
| CN208219416U (en) * | 2018-03-17 | 2018-12-11 | 中铁第五勘察设计院集团有限公司 | Height-adjustable beam delivering machine |
| CN110273375A (en) * | 2018-03-17 | 2019-09-24 | 中国铁路总公司 | A kind of Bridge Erector |
| CN110273368A (en) * | 2018-03-17 | 2019-09-24 | 中铁第五勘察设计院集团有限公司 | In the method set a roof beam in place on station of setting a roof beam in place |
| CN211772940U (en) * | 2019-11-26 | 2020-10-27 | 中铁第五勘察设计院集团有限公司 | Variable width guide beam |
-
2019
- 2019-11-26 CN CN201911176804.6A patent/CN110735404B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2712993Y (en) * | 2004-07-20 | 2005-07-27 | 彭功根 | Lifting frame integrated bridge erector |
| CN1940183A (en) * | 2006-08-04 | 2007-04-04 | 铁道第五勘察设计院 | Continuous medium-spanning beamed motor bridge and its erection |
| CN201605539U (en) * | 2010-02-08 | 2010-10-13 | 李娟� | Novel telescopic guide-beam bridge girder erection machine |
| CN107386128A (en) * | 2017-09-15 | 2017-11-24 | 中铁第五勘察设计院集团有限公司 | Double-T shaped beam bridge changes beam construction system |
| CN208219416U (en) * | 2018-03-17 | 2018-12-11 | 中铁第五勘察设计院集团有限公司 | Height-adjustable beam delivering machine |
| CN110273375A (en) * | 2018-03-17 | 2019-09-24 | 中国铁路总公司 | A kind of Bridge Erector |
| CN110273368A (en) * | 2018-03-17 | 2019-09-24 | 中铁第五勘察设计院集团有限公司 | In the method set a roof beam in place on station of setting a roof beam in place |
| CN211772940U (en) * | 2019-11-26 | 2020-10-27 | 中铁第五勘察设计院集团有限公司 | Variable width guide beam |
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| CN110735404B (en) | 2024-10-15 |
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