CN107858932B - Dragging device and construction method for large steel beam based on finish rolling deformed steel bar and continuous hydraulic roof - Google Patents
Dragging device and construction method for large steel beam based on finish rolling deformed steel bar and continuous hydraulic roof Download PDFInfo
- Publication number
- CN107858932B CN107858932B CN201711210516.9A CN201711210516A CN107858932B CN 107858932 B CN107858932 B CN 107858932B CN 201711210516 A CN201711210516 A CN 201711210516A CN 107858932 B CN107858932 B CN 107858932B
- Authority
- CN
- China
- Prior art keywords
- dragging
- control unit
- steel
- displacement
- continuous
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to a large steel girder dragging device based on finish rolling deformed steel bars and continuous hydraulic jacks, wherein a dragging sliding structure is arranged at a dragging point between a pier and a steel girder, the dragging sliding structure is connected with the continuous dragging structure through the finish rolling deformed steel bars, the dragging sliding structure is connected with the steel girder in a sliding manner through dragging counterforce tracks, the dragging counterforce tracks are arranged along the bridge direction, and displacement, pressure and distance measurement sensing assemblies are arranged between each dragging sliding structure and the pier; the invention also discloses a construction method of the device. The invention has the beneficial effects that: the problem of steel girder erection of crossing channels, railways and highways in complex environments can be solved, the dragging devices arranged on a plurality of piers can be controlled at the same time, and the dragging displacement is guaranteed to be equal to the actual displacement of the steel girders.
Description
Technical Field
The invention relates to the technical field of bridge construction, in particular to a dragging device and a construction method of a large steel beam based on finish rolling deformed steel bars and continuous hydraulic jacks.
Background
With the enlargement of the construction of the infrastructure in China, the surrounding environment of projects to be constructed is increasingly complex, particularly bridge steel girder construction of a cross-channel, a highway, an existing railway line and the like, in order not to influence the operation of the original facilities and ensure the safety requirement, a cantilever assembling process is not allowed to be used, large mechanical equipment is required for the section hoisting for transportation and hoisting, the existing continuous jacks are matched with steel hinge line dragging (bulletin numbers CN101831874A and CN 102359071A), the continuous jacks drag the steel girder or a large structural member through the steel hinge line, the steel hinge line is more due to the characteristics of self elastic modulus and the quantity of the steel hinge line, and the displacement quantity of each continuous jack acquired and controlled in the system is transmitted through unequal elastic elongation factors of the steel hinge line, so that the synchronous pushing effect can not be achieved in the practical construction.
For the problems in the related art, no effective solution has been proposed at present.
Disclosure of Invention
Aiming at the technical problems in the related art, the invention provides a large steel girder dragging device based on finish rolling deformed steel bars and continuous hydraulic jacks and a construction method, which can solve the problems in the prior art.
In order to achieve the technical purpose, the technical scheme of the invention is realized as follows:
the large steel beam is based on a finish rolling threaded steel and a continuous hydraulic roof, a traction sliding structure is arranged at a traction point between a pier and the steel beam, the traction sliding structure is connected with the continuous traction structure through the finish rolling threaded steel, the traction sliding structure is in sliding connection with the steel beam through a traction reaction track, the traction reaction tracks are arranged along a bridge direction, and a displacement, pressure and distance measurement sensing assembly is arranged between each traction sliding structure and the pier; each dragging sliding structure is in communication connection with a hydraulic station, each hydraulic station is in communication connection with a field control unit, and each field control unit is in communication connection with a main control unit and a corresponding displacement, pressure and distance measurement sensing assembly.
Further, the communication end of the main control unit is connected with the communication end of each field control unit, the hydraulic control signal output end of each field control unit is connected with the corresponding hydraulic station control signal input end, the state signal output end of the hydraulic station is connected with the hydraulic station state signal input end of the corresponding field control unit, and the signal output end of each displacement and pressure and distance measurement sensing component is connected with the jack displacement signal input end of the corresponding field control unit.
Further, the continuous pulling structure comprises a front punching top and a rear punching top, and the front punching top and the rear punching top are connected with the finish rolling deformed steel bar through nuts.
Furthermore, cushion blocks are arranged between the front punching top and the nut as well as between the rear punching top and the nut.
Further, the continuous traction structure is fixedly arranged through a bracket.
The invention also discloses a construction method of the multi-joint multi-span steel girder multi-point synchronous dragging device, which comprises the following steps:
s1, checking initial state: the displacement, pressure and distance measurement sensing assemblies collect 0 point of initial horizontal displacement of the steel beam, the main control unit checks the oil cylinder position of each dragging sliding structure and instructs the piston rod of the oil cylinder to be in a final retraction state, and a starting signal is sent;
s2, starting a continuous dragging structure to drag, and alternately tightening nuts of the front punching top and the rear punching top and finish rolling deformed steel bars;
s3, in the dragging process, the main control unit receives left and right displacement data of other dragging sliding structures, performs timely comparison, sends fine adjustment flow and pressure signals to each site control unit, adjusts the thrust and speed of the cylinder at each dragging point, realizes dynamic adjustment of left and right displacement of the structure of the steel beam in the dragging process, monitors the dragging travel distance through each displacement and pressure and ranging sensing assembly, and stops when the current penetrating top cylinder travel reaches the forward front end position;
s4, locking the nut of the penetrating top cylinder with the finish rolling deformed steel bar, sending a locking completion signal and starting to pull the penetrating top cylinder;
s5, recovering the front penetrating roof, and enabling the main control unit to instruct the traction oil cylinder to retract for a preset stroke and to lock and position the nut so as to realize a traction process; the cycle is performed until the main control unit receives a signal command from the control panel to stop continuous dragging.
The invention has the beneficial effects that: the problem of steel girder erection of a crossing channel, a railway and a highway under a complex environment can be solved; the dragging device arranged on a plurality of piers or struts can be controlled at the same time, so that the dragging displacement is ensured to be equal to the actual displacement of the steel beam; meanwhile, the real-time data acquisition is carried out on the left and right displacement of the steel beam, so that the working condition of accurate dragging of the left and right sides of the steel beam in a multi-point synchronous manner is achieved, the construction quality and speed of the steel beam or a large-scale structural member are improved, and the transverse deviation is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a mounting arrangement diagram of a large steel girder based on finish rolled deformed steel and a continuous hydraulic ram of a tractor according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the invention, fall within the scope of protection of the invention.
As shown in fig. 1, according to the drawing device of the large steel girder based on finish rolling screw steel and continuous hydraulic roof according to the embodiment of the invention, a drawing sliding structure 3 is arranged at a drawing point between a pier 1 and a steel girder 2, the drawing sliding structure 3 is connected with a continuous drawing structure 5 through the finish rolling screw steel 7, the drawing sliding structure 3 is slidingly connected with the steel girder 2 through a drawing counter-force rail 4, the drawing counter-force rail 4 is arranged along the bridge direction, and a displacement, pressure and distance measuring sensing assembly 6 is arranged between each drawing sliding structure 3 and the pier 1; each dragging sliding structure 3 is connected with a hydraulic station in a communication mode, each hydraulic station is connected with a field control unit in a communication mode, and each field control unit is connected with a main control unit and a corresponding displacement, pressure and distance measuring sensing assembly 6 in a communication mode.
The communication end of the main control unit is connected with the communication end of each field control unit, the hydraulic control signal output end of each field control unit is connected with the corresponding hydraulic station control signal input end, the state signal output end of the hydraulic station is connected with the hydraulic station state signal input end of the corresponding field control unit, and the signal output end of each displacement and pressure and distance measurement sensing assembly 6 is connected with the jack displacement signal input end of the corresponding field control unit.
In one embodiment of the present invention, the continuous pulling structure comprises a front piercing roof 501 and a rear piercing roof 502, and the front piercing roof 501 and the rear piercing roof 502 are connected to the finish rolled screw steel 7 by nuts 503.
In one embodiment of the present invention, spacer blocks 504 are disposed between the front and rear core print heads 501 and 502 and the nut 503.
In one embodiment of the present invention, the continuous pulling structure 5 is fixedly disposed by a bracket 505.
The invention also discloses a construction method of the large steel girder dragging device based on the finish rolling deformed steel bar and the continuous hydraulic ram, which comprises the following steps:
s1, checking initial state: the displacement, pressure and distance measurement sensing assemblies 6 collect 0 point of initial horizontal displacement of the steel beam 2, the main control unit checks the oil cylinder position of each dragging sliding structure 3 and instructs the piston rod of the dragging sliding structure to be in a final retraction state, and a starting signal is sent;
s2, starting the continuous pulling structure 5 to pull, and alternately tightening nuts 503 of the front punching top 501 and the rear punching top 502 and the finish-rolled deformed steel bars 7;
s3, in the dragging process, the main control unit receives the left and right displacement data of other dragging sliding structures 3, performs timely comparison, sends fine adjustment flow and pressure signals to each field control unit, adjusts the top thrust and speed of the oil cylinder of each dragging point, realizes the dynamic adjustment of the left and right displacement of the structure of the steel beam 2 in the dragging process, monitors the dragging travel distance through each displacement and pressure and ranging sensing assembly 6, and stops when the current oil cylinder travel of the penetrating roof 501 reaches the forward front end position;
s4, locking the cylinder nut 503 of the penetrating top 502 with the finish rolling deformed steel bar 7, sending a locking completion signal and starting to pull the cylinder of the penetrating top 502;
s5, the front penetrating roof 501 is recovered, the main control unit instructs the traction oil cylinder to retract for a preset stroke, and the nut 503 is locked and positioned, so that a traction process is realized; the cycle is performed until the main control unit receives a signal command from the control panel to stop continuous dragging.
In summary, by means of the above technical solution of the present invention, the dragging devices provided on the plurality of piers or struts can be controlled simultaneously, ensuring that the dragging displacement is equal to the actual displacement of the steel beam; meanwhile, the real-time data acquisition is carried out on the left and right displacement of the steel beam, so that the working condition of accurate dragging of the left and right sides of the steel beam in a multi-point synchronous manner is achieved, the construction quality and speed of the steel beam or a large-scale structural member are improved, and the transverse deviation is avoided.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (5)
1. The large steel beam dragging device based on the finish rolling screw steel and the continuous hydraulic roof is characterized in that a dragging sliding structure (3) is arranged at a dragging point between a pier (1) and a steel beam (2), the dragging sliding structure (3) is connected with a continuous dragging structure (5) through the finish rolling screw steel (7), the dragging sliding structure (3) is slidingly connected with the steel beam (2) through a dragging counterforce track (4), the dragging counterforce track (4) is arranged along the bridge direction, and displacement, pressure and distance measuring sensing assemblies (6) are arranged between each dragging sliding structure (3) and the pier (1);
each dragging sliding structure (3) is in communication connection with a hydraulic station, each hydraulic station is in communication connection with a site control unit, and each site control unit is in communication connection with a main control unit and a corresponding displacement, pressure and distance measurement sensing assembly (6);
the communication end of the main control unit is connected with the communication end of each field control unit, the hydraulic control signal output end of each field control unit is connected with the corresponding hydraulic station control signal input end, the state signal output end of the hydraulic station is connected with the hydraulic station state signal input end of the corresponding field control unit, and the signal output end of each displacement and pressure and distance measurement sensing assembly (6) is connected with the jack displacement signal input end of the corresponding field control unit.
2. A large steel girder dragging device based on finish rolled screw steel and continuous hydraulic ram according to claim 1, characterized in that the continuous dragging structure comprises a front punching ram (501) and a rear punching ram (502), both the front punching ram (501) and the rear punching ram (502) being connected to the finish rolled screw steel (7) by nuts (503).
3. A large steel girder dragging device based on finish rolled screw steel and continuous hydraulic ram according to claim 2, characterized in that between the front (501) and rear (502) penetrating ram and the nut (503) there are provided spacers (504).
4. A large steel girder drawing device based on finish rolled screw steel and continuous hydraulic ram according to claim 3, characterized in that the continuous drawing structure (5) is fixedly arranged by means of brackets (505).
5. A construction method of a large steel girder based on a finish rolling screw-thread steel and a continuous hydraulic roof dragging device using the large steel girder according to any one of claims 2 to 4, characterized by comprising the following steps:
s1, checking initial state: the displacement, pressure and distance measurement sensing assemblies (6) collect 0 point of initial horizontal displacement of the steel beam (2), and the main control unit checks the oil cylinder position of each dragging sliding structure (3) and instructs the piston rod of the oil cylinder to be in a final retraction state and sends out a starting signal;
s2, starting a continuous dragging structure (5) to drag, and alternately tightening nuts (503) of a front punching top (501) and a rear punching top (502) and finish-rolled deformed steel bars (7);
s3, in the dragging process, the main control unit receives the left and right displacement data of other dragging sliding structures (3), performs timely comparison, sends fine adjustment flow and pressure signals to each field control unit, adjusts the top thrust and speed of the oil cylinder of each dragging point, realizes the dynamic adjustment of the left and right displacement of the structure of the steel beam (2) in the dragging process, monitors the dragging stroke distance through each displacement and pressure and ranging sensing assembly (6), and stops when the current stroke of the oil cylinder of the penetrating roof (501) reaches the forward front end position;
s4, locking a cylinder nut (503) of the penetrating top (502) with the finish rolling deformed steel bar (7), sending a locking completion signal and starting to pull the cylinder of the penetrating top (502);
s5, the front penetrating roof (501) is recovered, the main control unit instructs the traction oil cylinder to retract for a preset stroke, and the nut (503) is locked and positioned to realize a traction process; the cycle is performed until the main control unit receives a signal command from the control panel to stop continuous dragging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711210516.9A CN107858932B (en) | 2017-11-28 | 2017-11-28 | Dragging device and construction method for large steel beam based on finish rolling deformed steel bar and continuous hydraulic roof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711210516.9A CN107858932B (en) | 2017-11-28 | 2017-11-28 | Dragging device and construction method for large steel beam based on finish rolling deformed steel bar and continuous hydraulic roof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107858932A CN107858932A (en) | 2018-03-30 |
| CN107858932B true CN107858932B (en) | 2023-09-29 |
Family
ID=61702919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711210516.9A Active CN107858932B (en) | 2017-11-28 | 2017-11-28 | Dragging device and construction method for large steel beam based on finish rolling deformed steel bar and continuous hydraulic roof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107858932B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113215991B (en) * | 2021-04-25 | 2022-11-04 | 邵阳公路桥梁建设有限责任公司 | Rapid steel box girder erection device and construction method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006169791A (en) * | 2004-12-15 | 2006-06-29 | Nippon Sharyo Seizo Kaisha Ltd | Construction method and control system for incrementally launching bridge girder |
| KR100819432B1 (en) * | 2007-10-09 | 2008-04-04 | 조재성 | The hydraulic jack appartus for launching og bridge construction |
| JP2009114751A (en) * | 2007-11-07 | 2009-05-28 | Nippon Sharyo Seizo Kaisha Ltd | Delivery device and delivery system |
| CN101818481A (en) * | 2010-06-04 | 2010-09-01 | 北京城建道桥建设集团有限公司 | Device for performing incremental launching construction on bridge by using multi-roller sliding ways and construction method thereof |
| CN102359071A (en) * | 2011-07-27 | 2012-02-22 | 中铁大桥局集团第一工程有限公司 | Steel truss girder multi-point synchronous incremental launching control device and continuous relay construction method |
| CN203346798U (en) * | 2013-07-03 | 2013-12-18 | 中交二公局第四工程有限公司 | Reverse dragging device for large span steel truss girder dragging construction |
| CN103924529A (en) * | 2014-04-28 | 2014-07-16 | 中铁十局集团建筑工程有限公司 | Rolling drag device and construction method thereof |
| KR101564899B1 (en) * | 2014-04-25 | 2015-11-02 | (주)지아이에프 | Apparatus for transporting truss girder segment |
| KR101756030B1 (en) * | 2016-07-05 | 2017-07-10 | 심규숙 | Position modification method of bridge upper structure by proportional deviation control |
| CN207878277U (en) * | 2017-11-28 | 2018-09-18 | 江西乔田重工有限公司 | A kind of large size girder steel pricks the towed equipment of screw-thread steel and continuous hydraulic top based on essence |
-
2017
- 2017-11-28 CN CN201711210516.9A patent/CN107858932B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006169791A (en) * | 2004-12-15 | 2006-06-29 | Nippon Sharyo Seizo Kaisha Ltd | Construction method and control system for incrementally launching bridge girder |
| KR100819432B1 (en) * | 2007-10-09 | 2008-04-04 | 조재성 | The hydraulic jack appartus for launching og bridge construction |
| JP2009114751A (en) * | 2007-11-07 | 2009-05-28 | Nippon Sharyo Seizo Kaisha Ltd | Delivery device and delivery system |
| CN101818481A (en) * | 2010-06-04 | 2010-09-01 | 北京城建道桥建设集团有限公司 | Device for performing incremental launching construction on bridge by using multi-roller sliding ways and construction method thereof |
| CN102359071A (en) * | 2011-07-27 | 2012-02-22 | 中铁大桥局集团第一工程有限公司 | Steel truss girder multi-point synchronous incremental launching control device and continuous relay construction method |
| CN203346798U (en) * | 2013-07-03 | 2013-12-18 | 中交二公局第四工程有限公司 | Reverse dragging device for large span steel truss girder dragging construction |
| KR101564899B1 (en) * | 2014-04-25 | 2015-11-02 | (주)지아이에프 | Apparatus for transporting truss girder segment |
| CN103924529A (en) * | 2014-04-28 | 2014-07-16 | 中铁十局集团建筑工程有限公司 | Rolling drag device and construction method thereof |
| KR101756030B1 (en) * | 2016-07-05 | 2017-07-10 | 심규숙 | Position modification method of bridge upper structure by proportional deviation control |
| CN207878277U (en) * | 2017-11-28 | 2018-09-18 | 江西乔田重工有限公司 | A kind of large size girder steel pricks the towed equipment of screw-thread steel and continuous hydraulic top based on essence |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107858932A (en) | 2018-03-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107815975B (en) | Multi-point synchronous pushing device based on independent non-rigid pier for multi-connected multi-span steel girder and construction method | |
| CN204343170U (en) | A kind of tie-rod steel pipe arch bridge continuously construction tubular arch vertical shift pushing tow system | |
| CN101664762A (en) | Ultra-large type memorial archway side-standing rotating installation technology | |
| CN101761032A (en) | Jack-in erection equipment for bridge | |
| CN107858932B (en) | Dragging device and construction method for large steel beam based on finish rolling deformed steel bar and continuous hydraulic roof | |
| CN103572708A (en) | Large-span concrete continuous girder bridge side span folding device and method | |
| CN110725209A (en) | Construction prop-up device and method for bridges adjacent to business lines | |
| CN113622316A (en) | Steel truss girder multipoint traction type pushing construction system and construction method thereof | |
| CN207047691U (en) | A kind of cantilever type movable crosshead | |
| CN205576749U (en) | Pontic roof beam structure promotes and rackwork | |
| CN208328721U (en) | Cross spacing and deviation-rectifying system suitable for box girder incremental launching method construction | |
| CN103147405A (en) | Method for erecting steel girder of cable-stayed bridge with diagonal main trusses | |
| CN112227204A (en) | Side span pushing closure construction method for cable-stayed bridge | |
| CN204022417U (en) | Telescopic job platform | |
| CN214783345U (en) | Bridge deck hoisting system of central double-cable-plane cable-stayed bridge | |
| CN107447683A (en) | Hanging-basket walking device | |
| CN207878277U (en) | A kind of large size girder steel pricks the towed equipment of screw-thread steel and continuous hydraulic top based on essence | |
| CN210635478U (en) | Core-pulling leveling device for hot-rolled steel coil | |
| CN202208891U (en) | Vertical and horizontal end-point receiving gradually-guiding device for cantilever thrusting steel truss | |
| CN207974023U (en) | Incremental launching construction by multipoint jacking device of the multi-joint multi-span steel beam based on independent non-rigid bridge pier | |
| CN203822340U (en) | Gate-type support frame equipment | |
| CN212670585U (en) | Steel support axial force compensation system with self-locking hydraulic ratchet wheel | |
| CN203048016U (en) | Groove-shaped slideway of full automatic propelling device | |
| CN220224963U (en) | Bridge girder erection machine tunnel portal frame boundary beam mechanism | |
| CN103741587A (en) | Method for elastically restraining main beam displacement of ultrahigh-span cable-stayed bridge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |