CN115387238A - Bridge girder erection method of bridge girder erection machine suitable for space cross road section - Google Patents
Bridge girder erection method of bridge girder erection machine suitable for space cross road section Download PDFInfo
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- CN115387238A CN115387238A CN202211139290.9A CN202211139290A CN115387238A CN 115387238 A CN115387238 A CN 115387238A CN 202211139290 A CN202211139290 A CN 202211139290A CN 115387238 A CN115387238 A CN 115387238A
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- 230000007246 mechanism Effects 0.000 claims abstract description 88
- 229910000831 Steel Inorganic materials 0.000 claims description 16
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- 238000010276 construction Methods 0.000 abstract description 13
- 238000009434 installation Methods 0.000 abstract description 2
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- 230000009471 action Effects 0.000 description 3
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- 241001236644 Lavinia Species 0.000 description 2
- 238000009417 prefabrication Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000009286 beneficial effect Effects 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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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Abstract
The invention relates to a bridge girder erection method of a bridge girder erection machine suitable for a space cross road section, which comprises the following steps: the method comprises the following steps that the front end of a beam body to be erected is hung by using a first travelling mechanism pocket, and the rear end of the beam body to be erected is lifted by a rear crane, wherein the first travelling mechanism pocket is positioned on a travelling platform erected below an existing line, and the height of the first travelling mechanism pocket is smaller than the distance between the existing line and the travelling platform; the first travelling mechanism and the rear crown block are used for driving a beam body to be erected to move to a bridge position to be erected, so that the first travelling mechanism drives the front end of the beam body to be erected to penetrate through the existing line from the lower part of the existing line; and a first lifting mechanism is arranged at the top of the first travelling mechanism to form a front crown block, and the front crown block and the rear crown block are used for moving the beam body to be erected to the position to be erected. The invention realizes the crossing of the existing line without damaging the existing structure and replacing the equipment, ensures the construction period, has safe and reliable structure, convenient installation, economy and applicability.
Description
Technical Field
The invention relates to the field of bridge engineering construction, in particular to a bridge girder erection method of a bridge girder erection machine suitable for a spatial crossing road section.
Background
With the rapid development of the traffic infrastructure in China, the construction level in China can construct bridges in various complex environments, and the traffic network is also continuously enriched and improved. The cross construction of new and old lines, especially the bridge engineering construction of underpass existing lines, has many difficulties, and newly-built bridges are restricted by space condition factors such as height, span and the like of the existing lines, and have great influence on aspects such as construction progress, cost and the like.
In the related technology, the bridge construction in China is vigorously popularized, prefabricated and assembled construction is adopted, and the bridge industrialization direction is continuously developed. After the prefabrication of the bridge superstructure in a prefabrication field is finished, the bridge superstructure is transported to a bridge site through a transport vehicle and then erected by lifting a beam through a bridge erecting machine, so that the construction quality and speed are greatly improved. However, when the existing line is threaded downwards, the bridge girder erection machine cannot be integrally threaded downwards through the existing line due to the limitation of clearance, so that great difficulty is brought to construction.
Disclosure of Invention
The embodiment of the invention provides a bridge girder erection method of a bridge girder erection machine suitable for a spatial crossing road section, which aims to solve the problem that in the related art, when an existing line is penetrated downwards, the bridge girder erection machine cannot penetrate through the existing line integrally due to the limitation of clearance, so that great difficulty is brought to construction.
The embodiment of the invention provides a bridge girder erection method of a bridge girder erection machine, which is suitable for a space cross road section and comprises the following steps: the method comprises the following steps that the front end of a beam body to be erected is hung by using a first travelling mechanism pocket, and the rear end of the beam body to be erected is lifted by a rear overhead crane, wherein the first travelling mechanism pocket is positioned on a travelling platform erected below an existing line, and the height of the first travelling mechanism pocket is smaller than the distance between the existing line and the travelling platform; the first travelling mechanism and the rear crown block are used for driving a beam body to be erected to move to a bridge position to be erected, so that the first travelling mechanism drives the front end of the beam body to be erected to penetrate through the existing line from the lower part of the existing line; and installing a first lifting mechanism at the top of the first walking mechanism to form a front crown block, and moving the to-be-erected beam body to the to-be-erected bridge position by using the front crown block and the rear crown block.
In some embodiments, the moving the to-be-bridged beam body to the to-be-bridged position by using the front crown block and the rear crown block further includes the following steps: using the lifting mechanism I to lift the front end of the beam body to be erected; releasing the pocket hanging of the walking mechanism on the beam body to be erected; and using the front crown block and the rear crown block to finish the beam falling of the beam body to be erected.
In some embodiments, the releasing the hanging of the walking mechanism to the beam body to be erected includes: and integrally lifting the beam body to be erected by utilizing the front crown block and the rear crown block, and then removing a pocket of the travelling mechanism to lift the beam body to be erected.
In some embodiments, the using the front crown block and the rear crown block to complete the beam falling of the beam body to be erected includes: suspending the beam body to be erected above the bridge position to be erected by using the front crown block and the rear crown block, and adjusting the plane position of the beam body to be erected; and the front crown block and the rear crown block are utilized to drop the beam body to be erected on the position to be erected, so that the beam body to be erected is erected.
In some embodiments, said hanging the front end of the beam body to be erected by using the travelling mechanism comprises: conveying the beam body to be erected to the front end of the erected beam body by using a front beam conveying vehicle and a rear beam conveying vehicle; hoisting any position of the front half section of the beam body to be erected by using the rear crown block pocket, and driving the front girder transporting vehicle to retreat; and then the front end of the beam body to be erected is hung by utilizing the travelling mechanism.
In some embodiments, the rear crown block hitches the rear end of the to-be-strutted beam body, and the rear crown block hitches the rear end of the to-be-strutted beam body, the rear crown block hitching device comprises: the hanging of the rear crown block on the beam body to be erected is released, and the rear crown block is moved to the rear end of the walking platform; and hoisting any position of the rear half section of the beam body to be erected by utilizing the rear crown block pocket, and driving the rear girder transporting vehicle to withdraw.
In some embodiments, the hoisting any position of the rear half section of the beam body to be erected by using the rear crown block pocket comprises: the rear beam transporting vehicle and the travelling mechanism are moved forwards until the rear end of the beam body to be erected is basically aligned with the rear end of the travelling platform; and hoisting the rear end of the beam body to be erected by utilizing the rear crown block pocket.
In some embodiments, a plurality of beams are fixed on the top of the first travelling mechanism; reuse a walking mechanism pocket hangs treat the front end of a roof beam body, include: and a steel rope is fixed at the bottom of the cross beam and bypasses the bottom of the beam body to be erected by utilizing the steel rope to complete the pocket hanging.
In some embodiments, the installing a first lifting mechanism on top of the first traveling mechanism to form a front crown block includes: and hoisting the lifting mechanism on the tops of the cross beams by using a truck crane, wherein the truck crane is positioned on the ground or the existing line.
In some embodiments, said wrapping around the bottom of said girder to be erected with said steel rope to complete a sling comprises: two lifting lugs are fixed at the bottom of each beam, wherein the two lifting lugs are arranged at intervals in the length direction of the beam, the steel rope is used for bypassing the bottom of the beam body to be erected, and two ends of the steel rope are in one-to-one correspondence with the two lifting lugs and are fixed with the corresponding lifting lugs.
The technical scheme provided by the invention has the beneficial effects that: the existing walking platform is fully utilized, the first walking mechanism and the rear crown block drive the beam body to be erected to move forwards, the first walking mechanism can penetrate through the lower portion of an existing line, the first half section of the beam body to be erected can be conveyed to penetrate through the lower portion of the existing line, the first lifting mechanism is hoisted at the top of the first walking mechanism to form the front crown block, the beam falling work can be completed through the lifting mechanisms of the front crown block and the rear crown block, the existing structure is not damaged, equipment is not replaced, the beam body can penetrate through the existing line, the construction period is guaranteed, the structure is safe and reliable, the installation is convenient, and the device is economical and applicable.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic flow chart of a beam erecting method according to an embodiment of the present invention;
fig. 2 is a schematic front view of an installed walking platform according to an embodiment of the present invention;
fig. 3 is a schematic structural view of the girder to be erected carried by the front and rear girder carriers according to the embodiment of the invention;
fig. 4 is a schematic structural diagram of a beam to be erected by a rear crown block pocket crane according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a rear crown block and a traveling mechanism for hanging a beam to be erected according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a rear crown block and a traveling mechanism for transporting a beam to be erected according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a first lifting mechanism for hoisting a truck crane according to an embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a beam falling and finishing structure of a beam body to be erected according to an embodiment of the invention;
fig. 9 is a schematic side view of a beam body of the beam pocket hanging rack according to the embodiment of the present invention.
In the figure: 1. a front crown block; 11. a first traveling mechanism; 12. a first lifting mechanism; 2. a rear crown block; 21. a second traveling mechanism; 22. a second lifting mechanism; 3. a cross beam; 4. a front girder transport vehicle; 5. a rear girder transporting vehicle; 6. a beam body to be erected; 7. a steel cord; 8. existing lines; 9. a walking platform.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The embodiment of the invention provides a bridge girder erection method of a bridge girder erection machine suitable for a spatial crossing road section, which aims to solve the problem that when existing lines are penetrated downwards in the related art, the bridge girder erection machine cannot penetrate downwards through the existing lines integrally due to the limitation of clearance, so that great difficulty is brought to construction.
Fig. 1 is a schematic flow chart of a bridge girder erection method suitable for a spatial intersection section according to an embodiment of the present invention. The method for erecting the bridge girder of the bridge erecting machine comprises the following steps:
step S100: the front end of the beam body 6 to be erected is hung by using the traveling mechanism I11, and the rear end of the beam body 6 to be erected is lifted by the rear overhead traveling crane 2.
Step S101: the traveling mechanism I11 and the rear overhead crane 2 are used for driving the beam body 6 to be erected to move to the position of the bridge to be erected, so that the traveling mechanism I11 drives the front end of the beam body 6 to be erected to penetrate through the existing line 8 from the lower part of the existing line 8.
Step S102: and a lifting mechanism I12 is arranged on the top of the travelling mechanism I11 to form a front crown block 1, and the front crown block 1 and the rear crown block 2 are used for moving the beam body 6 to be erected to the position to be erected.
The specific operation steps are as follows:
before step S100, the method may include: as shown in fig. 2, the walking platform 9 is installed with the erected bridge and the frame to be erected, and the front overhead traveling vehicle 1 and the rear overhead traveling vehicle 2 are ready on the walking platform 9. The existing line 8 is located above the position to be bridged, the walking platform 9 is a bridge erecting machine and located between the line to be bridged and the existing line 8, the front crown block 1 comprises a walking mechanism I11 and a lifting mechanism I12, and the rear crown block 2 comprises a walking mechanism II 21 and a lifting mechanism II 22.
Before step S100, the method may further include: as shown in fig. 3, the first lifting mechanism 12 of the front crown block 1 is removed, and a plurality of cross beams 3 are installed on the top of the first traveling mechanism 11 of the front crown block 1. The lifting mechanism I12 is detached and taken down, the self height of the front crown block 1 can be reduced, and the travelling mechanism I11 can penetrate through the lower part of the existing line 8 when travelling on the travelling platform 9.
In the present embodiment, the number of the beams 3 is two, and the two beams 3 are arranged in parallel. In some embodiments, the number of the cross beams 3 may be three or four, and the specific number is determined according to the self weight of the beam body 6 to be erected.
Next, as shown in fig. 3-4, the girder body 6 to be erected is transported to the front end of the erected girder body by the front girder transporting vehicle 4 and the rear girder transporting vehicle 5, the rear crown block 2 is driven to move forward to any position of the front half section of the girder body 6 to be erected, and the girder body 6 to be erected is hung by the second lifting mechanism 22 of the rear crown block 2.
Preferably, in some embodiments, the rear crown block 2 is driven to move forward to the front end position of the girder body to be erected 6 for carrying out pocket hoisting, but is always located behind the traveling mechanism one 11, so that stable hoisting work can be conveniently carried out on the girder body to be erected 6, and the bearing weight of the rear crown block 2 is reduced.
And next, the front beam transporting vehicle 4 can be driven to be removed, and space is provided for the traveling mechanism I11 to hang the beam body 6 to be erected.
In some optional embodiments, step S100 may include: as shown in fig. 5, after the front end of the girder body 6 to be erected is suspended by the first traveling mechanism 11, the rear crown block 2 is released from suspending the girder body 6 to be erected, the rear crown block 2 is driven to move backwards to the tail end of the traveling platform 9, the rear half section of the girder body 6 to be erected is suspended, and after the suspension is completed, the rear girder transporting vehicle 5 is driven to be removed, so that the suspension of the girder body 6 to be erected is completed.
Preferably, in some embodiments, the first traveling mechanism 11 pockets the front end of the to-be-erected beam body 6, and after the rear overhead traveling crane 2 is released from the pocket, the rear overhead traveling crane moves backwards and pockets the rear end of the to-be-erected beam body 6, so that the to-be-erected beam body 6 can be stably hung, and the shaking range of the to-be-erected beam body is small.
Specifically, as shown in fig. 9, two ends of the steel cable 7 pass around the bottom of the beam body 6 to be erected, and two ends of the steel cable are fixedly connected with the cross beam 3.
Preferably, in some embodiments, two lifting lugs are fixed at the bottom of each cross beam 3, wherein the two lifting lugs are arranged at intervals along the length direction of the cross beam 3, the steel rope 7 is used for bypassing the bottom of the beam body 6 to be erected, and two ends of the steel rope 7 correspond to the two lifting lugs one by one and are fixed with the corresponding lifting lugs. Can be convenient for through the lug the connection of steel cable 7 fixed, it is fixed firm, is convenient for dismantle the unblock simultaneously or fix.
Preferably, in some embodiments, stiffening plates are disposed at positions of the cross beam 3 corresponding to the lifting lugs and the first traveling mechanism 11, respectively, so as to improve the rigidity of the cross beam 3 and ensure local stability of the cross beam 3.
Step S101 may include: as shown in fig. 6, the traveling mechanism 11 and the rear crown block 2 are driven to move forward, the height of the traveling mechanism 11 is lower than the height between the traveling platform 9 and the existing line 8, so that the traveling mechanism 11 can penetrate through the lower part of the existing line 8, wherein the existing line 8 is positioned between the traveling mechanism 11 and the rear crown block 2.
Next, as shown in fig. 7, the truck crane is driven to the existing line 8, the first lifting mechanism 12 on the erected beam body is lifted and transferred from the upper part of the existing line 8 to the upper part of the first traveling mechanism 11, and the first lifting mechanism 12 is lifted and hung on the plurality of cross beams 3.
Preferably, in some embodiments, the truck crane may be located on the ground to hoist the first lifting mechanism 12.
Step S102 may include: as shown in fig. 8, the front crown block 1 and the rear crown block 2 are integrally lifted to treat the beam body 6, and at this time, the beam bodies 6 are not treated by the plurality of cross beams 3 to be hung in a pocket, so that the buckle and the loose hook on the lifting lug can be conveniently removed, the first walking mechanism 11 is completed, the beam bodies 6 are not hung in a pocket to be treated after the beam bodies 6 are treated, and the beam bodies 6 are then fallen through the first lifting mechanism 12 of the front crown block 1 and the second lifting mechanism 22 of the rear crown block 2.
Specifically, the to-be-erected beam body 6 is suspended above the to-be-erected bridge position by utilizing the first lifting mechanism 12 of the front crown block 1 and the second lifting mechanism 22 of the rear crown block 2, the plane position of the to-be-erected beam body 6 is adjusted longitudinally and transversely, the beam falling work is completed after the adjustment is completed, and the to-be-erected beam body 6 can be guaranteed to be correctly fallen at the to-be-erected bridge position.
Preferably, in some embodiments, the first lifting mechanism 12 of the front crown block 1 and the second lifting mechanism 22 of the rear crown block 2 suspend the beam body 6 to be erected 20cm above the position to be erected, and of course, the numerical value of the height may be adjusted according to actual conditions, so that a worker can observe the plane position of the beam body 6 to be erected and adjust the plane position, thereby completing the erection of the beam body 6 to be erected.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It is to be noted that, in the present invention, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A bridge girder erection method of a bridge girder erection machine suitable for a space cross section is characterized by comprising the following steps:
the method comprises the following steps that a first traveling mechanism (11) is used for hooking and hanging the front end of a beam body (6) to be erected, a rear overhead traveling crane (2) is used for lifting the rear end of the beam body (6) to be erected, wherein the first traveling mechanism (11) is located on a traveling platform erected below an existing line, and the height of the first traveling mechanism (11) is smaller than the distance between the existing line and the traveling platform;
the travelling mechanism I (11) and the rear crown block (2) are utilized to drive the beam body (6) to be erected to move to the position of the bridge to be erected, so that the travelling mechanism I (11) drives the front end of the beam body (6) to be erected to penetrate through the existing line (8) from the lower part of the existing line (8);
and a first lifting mechanism (12) is arranged at the top of the first travelling mechanism (11) to form a front crown block (1), and the front crown block (1) and the rear crown block (2) are used for moving the beam body (6) to be erected to the position to be erected.
2. The method for erecting a bridge girder for a space cross section according to claim 1, wherein: and use preceding overhead traveling crane (1) with back overhead traveling crane (2) will wait to erect roof beam body (6) and move to waiting to erect the position, still include the following step:
lifting the front end of the beam body (6) to be erected by using the first lifting mechanism (12);
releasing the hanging of the first travelling mechanism (11) on the beam body (6) to be erected;
and finishing the beam falling of the beam body (6) to be erected by using the front crown block (1) and the rear crown block (2).
3. The bridge girder erection method for a spatial cross section as claimed in claim 2, wherein: the pocket hanging of the beam body (6) to be erected for removing the first travelling mechanism (11) comprises the following steps:
and lifting the to-be-erected beam body (6) integrally by using the front crown block (1) and the rear crown block (2), and then releasing the first travelling mechanism (11) to hang the to-be-erected beam body (6).
4. The method for erecting a bridge girder for a space cross section according to claim 2, wherein: use preceding overhead traveling crane (1) with back overhead traveling crane (2) accomplish waiting to put up roof beam body (6) fall roof beam, include:
the front crown block (1) and the rear crown block (2) are utilized to suspend the beam body (6) to be erected above the position to be erected, and the plane position of the beam body (6) to be erected is adjusted;
and (3) utilizing the front crown block (1) and the rear crown block (2) to drop the body (6) to be erected on the bridge position to be erected, and completing erection of the body (6) to be erected.
5. The method for erecting a bridge girder for a space cross section according to claim 1, wherein: use running gear (11) pocket to hang the front end of treating a beam body (6), include:
the front beam conveying vehicle (4) and the rear beam conveying vehicle (5) are used for conveying the beam body (6) to be erected to the front end of the erected beam body;
hoisting any position of the front half section of the beam body (6) to be erected by using the rear crown block (2) and driving the front beam carrier (4) to withdraw;
and then the front end of the beam body (6) to be erected is hung by the traveling mechanism I (11).
6. The method for erecting a bridge girder for a space cross section according to claim 5, wherein: back overhead traveling crane (2) pocket is hung treat the rear end of the roof beam body (6) of erectting, include:
the hanging of the rear crown block (2) on the beam body (6) to be erected is released, and the rear crown block moves backwards to the rear end of the walking platform;
and (3) utilizing the rear crown block (2) to pocket and hang any position of the rear half section of the beam body (6) to be erected, and driving the rear beam transporting vehicle (5) to withdraw.
7. The bridge girder erection method for a spatial cross section as claimed in claim 6, wherein: utilize back overhead traveling crane (2) pocket is hung treat arbitrary position department of back half section of frame roof beam body (6), include:
the rear beam transporting vehicle (5) and the first travelling mechanism (11) are used for moving forwards until the rear end of the beam body (6) to be erected is basically aligned with the rear end of the travelling platform;
and then the rear crown block (2) is used for hanging the rear end of the beam body (6) to be erected.
8. The bridge girder erection method for a spatial cross section as claimed in claim 5, wherein: a plurality of cross beams (3) are fixed at the top of the first travelling mechanism (11); reuse running gear (11) pocket hang treat the front end of frame roof beam body (6), include:
and a steel rope (7) is fixed at the bottom of the cross beam (3), and the steel rope (7) is utilized to bypass the bottom of the beam body (6) to be erected so as to complete the pocket hanging.
9. The method for erecting a bridge girder for a space cross section according to claim 8, wherein: the top of the first walking mechanism (11) is provided with a first lifting mechanism (12) to form a front crown block (1), and the method comprises the following steps:
hoisting said first hoisting means (12) on top of said plurality of beams (3) by means of a truck crane, wherein said truck crane is located on the ground or on said existing line (8).
10. The method for erecting a bridge girder for a space cross section according to claim 8, wherein: the method for using the steel rope (7) to bypass the bottom of the beam body (6) to be erected so as to complete the pocket hanging comprises the following steps:
two lifting lugs are fixed at the bottom of each cross beam (3), wherein the two lifting lugs are arranged at intervals along the length direction of the cross beam (3), the steel rope (7) is utilized to bypass the bottom of the beam body (6) to be erected, and two ends of the steel rope (7) are in one-to-one correspondence with the two lifting lugs and are fixed with the corresponding lifting lugs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211139290.9A CN115387238B (en) | 2022-09-19 | Bridge girder erection method suitable for space crossing section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211139290.9A CN115387238B (en) | 2022-09-19 | Bridge girder erection method suitable for space crossing section |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115387238A true CN115387238A (en) | 2022-11-25 |
| CN115387238B CN115387238B (en) | 2024-07-09 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI10273U1 (en) * | 2013-04-12 | 2013-10-25 | Velvision Oy | LIFT DEVICE CONSTRUCTION |
| JP2014066007A (en) * | 2012-09-24 | 2014-04-17 | Nexco-East Engineering Co Ltd | Removal method of existent bridge and renewal method of existent bridge |
| CN113802467A (en) * | 2021-10-27 | 2021-12-17 | 重庆城建控股(集团)有限责任公司 | Large-gradient beam erecting method based on bridge girder erection machine |
| CN114057115A (en) * | 2021-12-20 | 2022-02-18 | 中交第二航务工程局有限公司 | Split type cable crane and construction method |
| CN217378620U (en) * | 2022-04-01 | 2022-09-06 | 郑州新大方重工科技有限公司 | Intelligent bridge erecting system |
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014066007A (en) * | 2012-09-24 | 2014-04-17 | Nexco-East Engineering Co Ltd | Removal method of existent bridge and renewal method of existent bridge |
| FI10273U1 (en) * | 2013-04-12 | 2013-10-25 | Velvision Oy | LIFT DEVICE CONSTRUCTION |
| CN113802467A (en) * | 2021-10-27 | 2021-12-17 | 重庆城建控股(集团)有限责任公司 | Large-gradient beam erecting method based on bridge girder erection machine |
| CN114057115A (en) * | 2021-12-20 | 2022-02-18 | 中交第二航务工程局有限公司 | Split type cable crane and construction method |
| CN217378620U (en) * | 2022-04-01 | 2022-09-06 | 郑州新大方重工科技有限公司 | Intelligent bridge erecting system |
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