CN111236085A - Mountain area segment beam conveying device and mountain area prefabricated segment beam conveying method - Google Patents
Mountain area segment beam conveying device and mountain area prefabricated segment beam conveying method Download PDFInfo
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- CN111236085A CN111236085A CN202010184527.XA CN202010184527A CN111236085A CN 111236085 A CN111236085 A CN 111236085A CN 202010184527 A CN202010184527 A CN 202010184527A CN 111236085 A CN111236085 A CN 111236085A
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000009434 installation Methods 0.000 claims description 22
- 239000011150 reinforced concrete Substances 0.000 claims description 4
- 239000004567 concrete Substances 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
- B61B13/00—Other railway systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
- B66C23/20—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes with supporting couples provided by walls of buildings or like structures
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
- B66F7/16—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks
- B66F7/18—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks by a single central jack
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
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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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/06—Methods or apparatus specially adapted for erecting or assembling bridges by translational movement of the bridge or bridge sections
Abstract
The application discloses transportation device and transportation method of prefabricated segmental beam in mountain area. The mountain area segment beam transportation device comprises a walking device, a turntable, a lifting platform and a track. The track is movably located to running gear, and the carousel rotationally cooperates with running gear, and the carousel is rotationally located to the one end of lifting platform, and the other end height-adjustable ground of lifting platform is connected with the carousel. The technical scheme that this application provided can transport the segmental beam to the mounted position in the mountain area.
Description
Technical Field
The application relates to the technical field of bridge engineering construction, in particular to a transportation device for a mountain section beam and a transportation method for a mountain prefabricated section beam.
Background
The sectional beam is a new technology for prefabricating the variable-section box beam in sections, is mainly used for large variable-section continuous bridges, has the advantages of 2-5 m sections and larger weight, can shorten the construction period, is easy to control the quality of the sectional beam and the like, and is usually transported on water. The current transportation mode of the sectional beam is as follows: and (4) transporting the prefabricated box girder to a floating crane area through the bracket, and then transporting to a segment girder installation and hoisting position by using a transport ship.
Due to the fact that the method for transporting the segmental girders is single, the wide use of the segmental girders is limited to a certain extent. Particularly, in mountainous areas, the conventional transportation method of the segmental beam is difficult to realize the transportation in the mountainous areas.
Disclosure of Invention
The application provides a transportation device and a transportation method for prefabricated section beams in mountainous areas, which are used for transporting the section beams to installation positions in the mountainous areas.
In a first aspect, the present application provides a mountain area segmental beam transportation device, which includes a walking device, a turntable, a lifting platform and a track. The track is movably located to running gear, and the carousel rotationally cooperates with running gear, and the carousel is rotationally located to the one end of lifting platform, and the other end height-adjustable ground of lifting platform is connected with the carousel.
In the above-mentioned scheme, provide one kind and can transport the mountain area section roof beam to installing position department in the mountain area section roof beam conveyer. The rails are arranged along the slope of the mountainous area, and the traveling devices can move to one side and the other side of the main pier through the rails, so that the segment beams can be transported to both sides of the main pier. Wherein the rotation of the section beam, due to the size of the section beam, takes place by means of the rotation of the turntable, so that it can pass smoothly through the main pier to reach the other side of the main pier. Due to the slope of the mountainous area, in order to stably place and lift the segmental beam, the lifting platform is further arranged, and the height of one side of the lifting platform is adjustable, so that the lifting platform can be in a horizontal state to stably support the segmental beam in the process that the walking device walks on the track in an inclined manner.
Optionally, in one possible implementation, one end of the lifting platform is connected to the turntable through a roller, and the other end of the lifting platform is connected to the turntable through a jack.
Optionally, in one possible implementation, the lifting platform is provided with a spreader beam for securing with an embedment of the segment beam.
Optionally, in one possible implementation, the traveling device includes a chassis, a traveling wheel, and a motor; the travelling wheels and the motor are arranged on the chassis, and the motor drives the travelling wheels;
the rotary disc is rotatably arranged on the chassis.
Optionally, in a possible implementation manner, the chassis is in a cross frame structure, and a rotating shaft is arranged at a cross point of two cross beams of the chassis and connected with the turntable through the rotating shaft;
two sides of one of the cross beams of the chassis are respectively provided with a jack which is abutted against the rotary table, and the frame of the chassis is provided with a roller which is contacted with the rotary table.
Optionally, in a possible implementation manner, the traveling device further includes a roller, the roller is disposed on the chassis, and the roller is configured to cooperate with the winch to implement braking.
Optionally, in a possible implementation manner, the rail is a concrete structure poured along the terrain, and a reinforced concrete stopper is arranged at the tail end of the rail.
In a second aspect, the application provides a method for transporting prefabricated segmental girders in mountainous areas. The method comprises the following steps:
providing a mountain section beam transporter, the step of providing a mountain section beam transporter comprising: providing a mountain section beam transport apparatus as provided in the first aspect;
installing a lifting device under a beam, wherein the step of installing the lifting device under the beam comprises the following steps: installing a hoisting device at the installed section beam;
and (2) carrying the section beams, wherein the step of carrying the section beams comprises the following steps: transporting the segmental beam to a hoisting position through a mountain segmental beam transportation device;
and (3) installing the segment beam, wherein the step of installing the segment beam comprises the following steps: and taking the installed segmental beam as a hoisting foundation, hoisting the segmental beam transported by the segmental beam to the installation position, and hoisting the segmental beam to the installation position by a bridge deck crane.
Optionally, in a possible implementation, the step of providing the mountain section beam transportation device further includes: and pouring the track along the slope according to the terrain.
Optionally, in one possible implementation, the step of installing the under-beam hoisting device includes: the lifting device comprises a lifting rail, an electric hoist and a bracket, wherein the lifting rail is fixed on the installed section beam and the bracket, and the electric hoist is movably arranged on the lifting rail.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic structural view of a mountain section beam transportation device in a first view in the embodiment;
FIG. 2 is a schematic structural diagram of the transportation device for sectional beams in mountainous areas in a second perspective in the present embodiment;
FIG. 3 is a schematic structural view of the transportation device for sectional beams in mountainous areas in a third perspective in the present embodiment;
FIG. 4 is a schematic view of the transportation apparatus for sectional beams in mountainous areas in this embodiment;
FIG. 5 is a schematic structural diagram of a track in this embodiment
FIG. 6 is a flow chart of a transportation method of the prefabricated segmental beam in the mountainous area in the embodiment;
fig. 7-11 are construction schematic diagrams of a transportation method of the prefabricated segmental beam in the mountainous area in the embodiment.
Icon: 10-a mountain section beam transportation device; 10 a-segment beam; 11-a walking device; 12-a turntable; 13-lifting the platform; 14-a track; 80-a winch; 110-a chassis; 111-road wheels; 112-a motor; 113-a roller; 130-a roller; 131-a jack; 132-carrying pole beam; 140-reinforced concrete limit blocks; 1100-beam; 1101-a rotating shaft; 1102-a jack; 1103-a roller;
20-a hoisting device; 21-hoisting a rail; 22-electric hoist; 23-a scaffold; 30-main pier; 40-bridge deck crane.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present application, it is to be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, refer to the orientation or positional relationship as shown in the drawings, or as conventionally placed in use of the product of the application, or as conventionally understood by those skilled in the art, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be considered as limiting the present application.
In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The technical solution in the present application will be described below with reference to the accompanying drawings.
Referring to fig. 1-4, fig. 1 is a schematic structural view of a mountain section beam transportation device 10 in a first view in the present embodiment. Fig. 2 is a schematic structural diagram of the mountain section beam transportation device 10 in the second view angle in the present embodiment. Fig. 3 is a schematic structural diagram of the mountain section beam transportation device 10 in a third view angle in the present embodiment. Fig. 4 is a schematic working diagram of the mountain section beam transportation apparatus 10 in this embodiment. In fig. 3, a segmented beam 10a is shown.
The mountain section beam transporter 10 includes a traveling device 11, a turntable 12, a lifting platform 13, and a rail 14. The running gear 11 is movably arranged on the track 14, the rotary table 12 is rotatably matched with the running gear 11, one end of the lifting platform 13 is rotatably arranged on the rotary table 12, and the other end of the lifting platform 13 is connected with the rotary table 12 in a height-adjustable manner.
In the above-described aspect, there is provided a mountain section beam transportation apparatus 10 capable of transporting a section beam to an installation location in a mountain area. The rails 14 are arranged along the slope of the mountainous area and the running gear 11 can be moved to one side and the other side of the main pier by the rails 14 so that the segment beams can be transported to both sides of the main pier. Wherein the rotation of the section beams, due to their size, takes place by means of the rotation of the turntable 12, so that they can pass smoothly through the main pier to reach the other side of the main pier. Due to the slope of the mountainous area, in order to stably place and lift the segmental beam, a lifting platform 13 is further provided, and the height of one side of the lifting platform 13 is adjustable, so that the lifting platform 13 can be in a horizontal state to stably support the segmental beam in the process that the walking device 11 walks on the track 14 in an inclined state.
One end of the lifting platform 13 is connected to the turntable 12 through a roller 130, and the other end of the lifting platform 13 is connected to the turntable 12 through a jack 131. The jack 131 is used for extending and contracting, so that one end of the lifting platform 13 can be adjusted in height, and the segment beam can be in a horizontal position on a slope.
Referring to fig. 3, the lifting platform 13 is provided with a carrying pole beam 132 for fixing with the embedded part of the segment beam. When the segmental beam is lifted and placed on the lifting platform 13, the embedded parts on the segmental beam are fixed with the shoulder pole beam 132, so that the segmental beam is ensured to be in the installation position.
It should be noted that in other embodiments, the lifting platform 13 is further provided with a rubber pad to support the sectional beams and prevent the sectional beams from being damaged.
The traveling device 11 includes a chassis 110, traveling wheels 111, a motor 112, and rollers 113. The walking wheels 111 and the motor 112 are arranged on the chassis 110, the motor 112 drives the walking wheels 111, the rollers are arranged on the chassis 110, and the rollers 113 are used for being matched with the winch 80 to realize braking.
As shown in fig. 1 and 4, the traveling device 11 travels by the cooperation of the traveling wheels 111, the rails 14, and the motor 112. Meanwhile, the braking of the traveling device 11 is risky because the rail 14 is built according to the gradient and there is a risk of untimely braking when going downhill, and in order to solve the problem, a winch 80 may be further disposed at the end of the rail 14, and the braking of the traveling device 11 when going downhill is realized by the winch 80, the pulling rope and the roller 113 in cooperation with the motor 112.
It should be noted that the number of the road wheels 111 is four, the four road wheels are respectively disposed at four corners of the chassis 110, and each road wheel 111 corresponds to one motor 112. Referring to fig. 5, fig. 5 shows a specific structure of the track 14 in the present embodiment, the track 14 corresponds to the road wheels 111, which are concrete structures poured along the terrain, and a reinforced concrete stopper 140 is disposed at the end of the track 14 to prevent the running gear 11 from separating from the track 14.
The turntable 12 is rotatably mounted on the chassis 110.
The chassis 110 is in a cross frame structure, and a rotating shaft 1101 is arranged at the intersection point of two cross beams 1100 of the chassis 110 and is connected with the rotating disc 12 through the rotating shaft. Two sides of one crossbeam 1100 of the chassis 110 are respectively provided with a jack 1102, the jacks 1102 are abutted against the rotary table 12, and the frame of the chassis 110 is provided with a roller 1103 contacted with the rotary table 12.
Wherein the turntable 12 can be rotated relative to the chassis 110 by the pushing of the jacks 1102 at both sides and the assistance of the rollers 1103.
It should be noted that the embodiment also provides a transportation method of the prefabricated segmental beam in the mountainous area.
Referring to fig. 6, fig. 6 shows a flow chart of a transportation method of the prefabricated segmental girders in the mountainous area.
The method comprises the following steps:
providing a mountain section beam transporter, the step of providing a mountain section beam transporter 10 comprising: providing the mountain section beam transporter 10 above;
installing a lifting device under a beam, wherein the step of installing the lifting device under the beam comprises the following steps: installing a hoisting device at the installed section beam;
and (2) carrying the section beams, wherein the step of carrying the section beams comprises the following steps: transporting the segmental beam to a hoisting position through a mountain segmental beam transporting device 10;
and (3) installing the segment beam, wherein the step of installing the segment beam comprises the following steps: and taking the installed segmental beam as a hoisting foundation, hoisting the segmental beam transported by the segmental beam to the installation position, and hoisting the segmental beam to the installation position by a bridge deck crane.
In one possible implementation, fig. 7-11 are schematic construction views of a transportation method of prefabricated segmental girders in mountainous areas.
Providing a mountain section beam transportation device: the mountain section beam transporter 10 above is provided.
Mounting the under-beam lifting device (see fig. 7, 8): and installing a hoisting device 20 at the installed section beam, wherein the hoisting device 20 comprises a hoisting rail 21, an electric hoist 22 and a bracket 12, the hoisting rail 21 is fixed on the installed section beam and the bracket 21, and the electric hoist 22 is movably arranged on the hoisting rail 21. Wherein, the support 21 is a triangular steel support, and the electric hoist 22 is movably arranged on the oblique edge of the triangular steel support.
And (3) transporting the segmental beam: firstly, the lifting platform 13 of the mountain area segmental beam transportation device 10 is adjusted in position through a jack 131, the lifting platform 13 is made to be horizontal, the segmental beam is lifted to the lifting platform 13 through a crane, a beam bottom embedded part of the segmental beam is fixed with a shoulder pole beam 132 on a beam transport vehicle, the segmental beam is slowly transported through self braking of a walking device 11 and common braking of a winch 80, when the mountain area segmental beam transportation device 10 reaches the bottom of the slope, the lifting platform 13 is adjusted to be horizontal through the jack 131 again, then the segmental beam transportation device is transported to a lifting position under the beam, when the mountain area segmental beam transportation device 10 passes through a main pier 30, the rotary table 12 on the mountain area segmental beam transportation device 10 is used for slowly rotating for 90 degrees, and after the main pier 30, the rotary table is slowly rotated to the original position. Because the mountain section beam transportation device 10 can only be transported to the pier side or the left and right central dividing strips, the mountain section beam transportation device 10 still needs to be transversely moved once, and the mountain section beam transportation device 10 can be transversely moved to the hoisting position by 90 degrees after being jacked by the jack 1102.
Segment beam installation (fig. 9, 10 and 11), the step of segment beam installation comprising: and taking the installed segmental beam as a hoisting foundation, hoisting the segmental beam provided by the segmental beam transportation step to the installation position, and hoisting the segmental beam to the installation position by a bridge deck crane 40. Take fig. 9-11 as an example: after the installation of the 1# block section beam (shown as 1# in the figure), a hoisting device under the beam is installed, the 1# block section beam is used as a hoisting foundation, the 2# block section beam (shown as 2# in the figure) is transported to a hoisting position through a mountain section beam transportation device 10, the 2# block section beam is hoisted through an electric hoist 22 and slowly moved to the lower part of the installation position, the 2# block section beam is adjusted to the installation position through a bridge deck crane 40 by utilizing a crane reserved hoisting hole, and after the installation of the 2# block section beam is completed, the hoisting device 20 is installed at the bottom of the 2# block section beam.
By repeating the segment beam transport and segment beam installation steps, segment beam installation can be completed.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A mountain section beam transportation device, comprising:
a traveling device;
a turntable;
lifting the platform; and
a track;
the walking device is movably arranged on the track, the rotary table is rotatably matched with the walking device, one end of the lifting platform is rotatably arranged on the rotary table, and the other end of the lifting platform is connected with the rotary table in a height-adjustable mode.
2. The mountain section beam transportation apparatus of claim 1,
one end of the lifting platform is connected with the rotary table through a rolling shaft, and the other end of the lifting platform is connected with the rotary table through a jack.
3. The mountain section beam transportation apparatus of claim 1,
the lifting platform is provided with a carrying pole beam and is used for being fixed with the embedded part of the segment beam.
4. The mountain section beam transportation apparatus of claim 1,
the walking device comprises a chassis, walking wheels and a motor; the travelling wheels and the motor are arranged on the chassis, and the motor drives the travelling wheels;
the rotary disc is rotatably arranged on the chassis.
5. The mountain section beam transportation apparatus of claim 4,
the chassis is in a cross frame structure, a rotating shaft is arranged at the intersection point of two cross beams of the chassis and is connected with the turntable through the rotating shaft;
two sides of one of the cross beams of the chassis are respectively provided with a jack, the jacks are abutted to the rotary table, and the frame of the chassis is provided with a roller contacted with the rotary table.
6. The mountain section beam transportation apparatus of claim 4,
the running gear further comprises a roller, the roller is arranged on the chassis, and the roller is used for being matched with a winch to realize braking.
7. The mountain section beam transportation apparatus of claim 1,
the track is a concrete structure poured along the terrain, and the tail end of the track is provided with a reinforced concrete limiting block.
8. A transportation method of prefabricated segmental beams in mountainous areas is characterized in that,
the method comprises the following steps:
providing a mountain section beam transporter, the step of providing a mountain section beam transporter comprising: providing the mountain section beam transport apparatus of claim 1;
installing a lifting device under a beam, the step of installing the lifting device under a beam comprising: installing a hoisting device at the installed section beam;
segment beam transport, the step of segment beam transport comprising: transporting the segmental beam to a hoisting position through the mountain segmental beam transporting device;
a segmental beam installation, the step of segmental beam installation comprising: and taking the installed segmental beam as a hoisting foundation, hoisting the segmental beam transported by the segmental beam to the installation position, and hoisting the segmental beam to the installation position by a bridge deck crane.
9. The method for transporting precast segmental beams in mountainous areas according to claim 8,
the step of providing a mountain section beam transportation device further comprises: and pouring the track along the slope according to the terrain.
10. The method for transporting precast segmental beams in mountainous areas according to claim 8,
the step of installing the under-beam lifting device comprises: the lifting device comprises a lifting rail, an electric hoist and a support, the lifting rail is fixed on the installed section beam and the support, and the electric hoist is movably arranged on the lifting rail.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010184527.XA CN111236085A (en) | 2020-03-16 | 2020-03-16 | Mountain area segment beam conveying device and mountain area prefabricated segment beam conveying method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010184527.XA CN111236085A (en) | 2020-03-16 | 2020-03-16 | Mountain area segment beam conveying device and mountain area prefabricated segment beam conveying method |
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| CN111236085A true CN111236085A (en) | 2020-06-05 |
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| CN111591937A (en) * | 2020-06-09 | 2020-08-28 | 青岛豪德博尔实业有限公司 | Novel hoisting device for road and bridge |
| CN112411397A (en) * | 2020-12-22 | 2021-02-26 | 成都建工第五建筑工程有限公司 | Bridge construction precast concrete conveying supporting mechanism |
| CN113585080A (en) * | 2021-07-30 | 2021-11-02 | 中铁十九局集团第五工程有限公司 | Steel box girder lifting and transporting frame system and construction method thereof |
| CN114032781A (en) * | 2021-11-30 | 2022-02-11 | 中铁二十四局集团上海铁建工程有限公司 | Construction method for girder-carrying upper bridge of girder-transporting vehicle |
| CN114313860A (en) * | 2022-03-07 | 2022-04-12 | 中铁长安重工有限公司 | Large-scale member operation device, control method, and readable storage medium |
| CN114592433A (en) * | 2022-03-07 | 2022-06-07 | 中铁广州工程局集团有限公司 | Segmental beam dragging and sliding device and method for passing pier and storing beam |
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