CN101864739A - Bridge rotation device and bridge rotation construction method - Google Patents

Bridge rotation device and bridge rotation construction method Download PDF

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Publication number
CN101864739A
CN101864739A CN201010202695A CN201010202695A CN101864739A CN 101864739 A CN101864739 A CN 101864739A CN 201010202695 A CN201010202695 A CN 201010202695A CN 201010202695 A CN201010202695 A CN 201010202695A CN 101864739 A CN101864739 A CN 101864739A
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bridge
track
flexible cable
keeper
main
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CN201010202695A
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CN101864739B (en
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徐国彬
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徐国彬
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Abstract

The invention relates to a bridge rotation device and a bridge rotation construction method. The rotation device comprises a spherical bearing, a bracket and a track, wherein the spherical bearing is arranged at the bottom of one end of a bridge; the bracket is fixed on one end of the bridge provided with the spherical bearing; the track is in the shape of a circular arc and takes the spherical bearing as the circle center; and a flexible cable or a rigid member is arranged between the top end of the bracket and the bridge. In addition, the rotation device is provided with a lift winch, the flexible cable on the lift winch is connected at the top end of the bracket, and the flexible cable passes through a main sliding location element which is arranged on the track and slides along the track or the winch to be directly installed on a main sliding platform on the track. Besides, the rotation device comprises a rotation driving device for driving the bridge to rotate additionally. The rotation device can ensure that the bridge can not swing in the rotation process, so as to enable the bridge to stably rotate, thereby saving the cost and being used repeatedly.

Description

Bridge rotary body device and bridge rotation swivel construction method
Technical field
The invention belongs to the bridge construction technical field, particularly a kind of bridge rotary body device and bridge rotation swivel construction method.
Background technology
Bridge is in process of construction, particularly when closing up,, must take the iceound measure of part in order to guarantee current safety such as highway that bridge crosses over, railway, rivers navigation channel, this inevitably can impact the normal safe and smooth of navigation channel, causes the navigation channel to stop up easily; Or, not only can influence normal passing through to highway or the measure of railway employing envelope line, also can have influence on the safety and the progress of engineering self simultaneously.In order both to guarantee engineering construction safety, reduce the unimpeded influence in navigation channel again as far as possible, shorten iceound, the envelope line time, and reduce construction cost, the bridge turning technology arises at the historic moment.
The bridge method of turning is constructed, can overcome constructional difficulties preferably at the deep water foundation in high mountain gorge, The water is deep and the current fast river course, or overcome the difficulty of setting up the large span structure on the river course of frequent navigation, especially be in busy urban interchange of communications and transportation and railroad underbridge to building, its advantage is more obvious.
Turning technology is exactly that whole the striding of the part of the leap rivers of bridge or highway, railway is divided into two, respectively in two sides or road both sides constructions, after treating that bridge superstructure is finished substantially, by the rotation of two sides master's pier upper beam body, make two parts close up into whole bridge again.The key technology of construction by swing is rotating machinery and turning power, and the Stability Analysis of Structures in the work progress and intensity guarantees, structure close up conversion with system.Generally be to turn triangular truss to be arranged on the device of bridge, truss one end is provided with counterweight, and the rotating disk of the usefulness of turning is divided into top rotary table and lower rotary table, and upper and lower rotating disk connects by the axle center, and between upper and lower rotating disk, also be provided with slideway, prevent that upper and lower rotating disk is offset mutually in rotation process.Top rotary table has the traction flexible cable, and the drive unit of turning pulling traction flexible cable drives top rotary table and rotates, thereby bridge is turned.Wait to turn finish after, irritate in the gap between upper and lower rotating disk and fill out concrete, make rotating disk become as a whole with bridge pier.Cause the not reproducible utilization of rotating disk like this, cause the wasting of resources.In addition, though rotator construction is compared with traditional suspention assembly unit method, truss cantilever-construction, built method the advantage that speed is fast, cost is low is arranged, the structure of rotating disk is complicated a little, and in order to obtain bigger torque, disk diameter is also bigger, so the cost of rotating disk own is higher.
Summary of the invention
At bridge rotator construction equipment cost height in the prior art, the purpose of this invention is to provide a kind of bridge rotary body device and rotation swivel construction method, not only can realize bridge stable turning in the process of turning, shorten the engineering time, and construction equipment recycling rate of waterused height can reduce the overall cost of construction.
Technical scheme of the present invention is achieved in that a kind of bridge rotary body device, described rotary body device comprises spherical bearing, support and track, spherical bearing is arranged on a bottom portion of bridge, support is fixed on the end that bridge is provided with spherical bearing, described track is circular-arc and is the center of circle with described spherical bearing, drawn flexible cable or stiffening member to connect into triangular structure between cantilever tip and the bridge; Also be provided with the lifting capstan winch, the flexible cable on the lifting capstan winch is connected in described cantilever tip, and flexible cable passes the main slip keeper of installing on the described track along slide, and perhaps capstan winch is directly installed on the main sliding platform on the track; Also comprise and drive the drive unit of turning that bridge rotates.
For the long bridge of bridge cantilever, the influences such as vibrations that wind-engaging or earthquake etc. cause in rotary course, be prone to and wave, influence construction safety and precision, therefore can be in the one or both sides of described bridge, be connected with flexible cable or stiffening member, one end of flexible cable or stiffening member is connected on the secondary sliding platform on the described track or on the secondary slip keeper, bridge is lived by side pieces is stable, also is useful on described secondary sliding platform of control or secondary slip keeper and described main sliding platform or main slip keeper synchronously along the sychronisation of slide.Stiffening member wherein can be rod member or truss.Truss can make bridge more stable in rotation process, is difficult for being subjected to the influence of wind load, seismic (seismal, but since truss both tension also can pressurized, so can only install in bridge one side.
Described support is truss or stiffening members such as rod member or pipe fitting.
Described secondary slip keeper or secondary sliding platform are to be inlaid on the described track by concavo-convex tongue-and-groove structure.
Similarly, described main slip keeper or main sliding platform are to be inlaid on the described track by concavo-convex tongue-and-groove structure.For example slide the keeper cross section for " worker " font, the slip keeper is arranged on the described track, and flexible cable can pass this slip keeper and self-locking device is set, after the specific anglec of rotation flexible cable is pinned rising bridge.
Described track can be an integral rail, main slip keeper or main platform, can be installed on this integral rail with pair slip keeper or auxiliary platform, can certainly adopt independently track respectively, but will guarantee that each track has identical radius and all be that the center of circle is arranged with the spherical bearing.
In order to guarantee main slip keeper or main platform, rotate synchronously with pair slip keeper or auxiliary platform, then need sychronisation, fairly simple is that sychronisation is that a stiffening member is connected between the platform or keeper of synchronous rotation.
The described drive unit of turning can turn to the flexible cable of capstan winch to be fixed on bridge or described support or described main sliding platform or the main slip keeper for turning to capstan winch; The perhaps described drive unit of turning is for being installed on described main sliding platform or the main slip keeper by motor-driven gear, at described track upper edge track tooth bar with described gears engaged is installed, is connected with the pivoted arm or the rope of the usefulness of turning between described bridge and main sliding platform or the main slip keeper.
The rope of the described usefulness of turning is for being fixed on main sliding platform or the main slip keeper, and rope is divided into two strands, and its other end is connected on the described bridge horizontal direction difference, makes rope and bridge form triangle.
The present invention also comprises the bridge rotation swivel construction method that utilizes described bridge rotary body device, may further comprise the steps:
(1) bridge one end rises
Spherical bearing is installed by a bottom portion at bridge, and at bridge near mounting bracket on the spherical bearing one end bridge, prop up between top of the trellis and the bridge and be connected to form triangle with flexible cable or stiffening member, the flexible cable of lifting capstan winch is connected in described top of the trellis, utilize capstan winch and support that the bridge other end is pulled up to the needed angle of rotation, it is on the arc-shaped rail in the center of circle with spherical bearing that flexible cable is positioned one by keeper or platform;
(2) bridge is turned
The utilization drive unit of turning makes the bridge level rotate to the predetermined horizontal level that closes up, and positioner rotates in orbit synchronously simultaneously;
(3) bridge is transferred
The position that utilizes the lifting capstan winch that bridge is transferred to close up.
The invention has the beneficial effects as follows: spherical bearing only rises and supports bridge and turning effort, and its loam cake not only can horizontally rotate but also can rotate in vertical plane with respect to base, therefore, the demand that can satisfy lifting in the bridge rotator construction process and turn, compare with the rotating disk that existing bridge rotator construction is used, it is simple in structure, volume is little, low many of cost.And parts such as the capstan winch of the usefulness of turning and track can reuse, and can save cost.
Description of drawings
Fig. 1 is one embodiment of the present invention schematic diagram;
Fig. 2 is a kind of structural representation of middle orbit of the present invention and main keeper;
Fig. 3 is the structural representation of middle orbit of the present invention and main keeper.
Fig. 4 is the drive unit schematic diagram of turning of another kind among the present invention.
Fig. 5 turns to use the arrangement diagram of rope.
Among the figure: Bridge 1 beam, 2, flexible cable, 2 ' stiffening member, 3 supports, 4 flexible cables, 5 flexible cables, 6 tracks, 7 spherical bearings, 8, keeper, 9, capstan winch, 10, platform, 11, capstan winch, 12, rod member synchronously, 13 motors, 14, gear, 15, tooth bar, 16, the rope of turning.
The specific embodiment
The present invention is described further in conjunction with the accompanying drawings:
As shown in Figure 1, be bridge rotary body device structural representation, comprise spherical bearing 7, support 3 and track 6, spherical bearing 7 is arranged on a bottom portion of bridge 1, spherical bearing is as a kind of bearing of maturation, because the SMIS between loam cake and base is a hemispherical, cooperates with half-spherical cavity on the base, make bridge 1 can realize horizontally rotating and vertical the rotation, for turning of bridge provides guarantee.Track 6 is for circular-arc and be that the center of circle is arranged on outside the spherical bearing with the spherical bearing, and track can be in same horizontal plane with spherical bearing, also can be higher than the bearing mounting plane or be lower than the bearing mounting plane, and concrete condition designs according to construction condition.Support 3 is fixed on bridge 1 and is provided with on the bridge of an end of spherical bearing, has drawn flexible cable 2 or stiffening member 2 ' (for example rod member, pipe fitting or truss) between support 3 tops and the bridge, forms a leg-of-mutton rock-steady structure.Also be provided with lifting capstan winch 9 (as shown in Figures 2 and 3), support 3 tops that flexible cable 5 on the lifting capstan winch 9 is connected in, utilizing capstan winch and flexible cable can be the fulcrum pull-up with the spherical bearing with bridge by support, make bridge as shown in Figures 2 and 3 pull-up or keep the bridge cantilever to be stabilized in sustained height horizontal by an angle.
Flexible cable 5 rises in rotary course to be held bridge 1 and remains on stabilization on vertical, therefore need to keep flexible cable stable, can be as shown in Figure 2, on track 6, main keeper 8 is installed by concavo-convex tongue-and-groove structure, main keeper 8 can not broken away from from track 6 along slide, flexible cable passes keeper 8 as shown in Figure 2 and by the locking mechanism on the keeper 8 flexible cable is positioned on the keeper, so that distance remains unchanged between keeper and support 3 tops.This moment, capstan winch 9 can be installed on the position outside the track.Locking mechanism can be lived cable clamp for various clamps.
Simpler mode is as shown in Figure 3, by concavo-convex tongue-and-groove structure the main sliding platform 10 that can slide and can not break away from is being installed on the track 6 on track 6, and capstan winch 9 directly is installed on the main sliding platform 10.
Bridge is turned, and multiple mode can be arranged, and for example can be provided with one as shown in Figure 1 and turn to capstan winch 11, turns to the flexible cable of capstan winch 11 to be fixed on the bridge, and the direct pull bridge is turned to drive bridge.
Also can be as shown in Figure 2, by the inclination angle of installing between support and the bridge is set, make the support can be after bridge is pulled up to the track lopsidedness, because the center that support 3 departs from spherical bearing 7, therefore turn to capstan winch 11 can also be arranged on the support 3 or act on the main keeper 8, produce torque by support 3 application of forces being acted on bridge 1, so that bridge is turned, but this kind mode directly draws bridge 1 to compare with Fig. 1, support 3 can be subjected to bigger stress effect with the junction of bridge, to support 3 to install and fix requirement of strength higher.
Even can directly utilize capstan winch 9 pulling bridges to turn as shown in Figure 2, this moment, capstan winch 9 need be arranged on direction one side of turning, and needs are considered problems such as influencing each other of flexible cable and track.
The another kind of feasible drive unit of turning is as shown in Figure 4, go up the gear 14 that is driven by motor 13 for being installed on main sliding platform 10 (or main slip keeper), at track 6 upper edge tracks the tooth bar 15 that meshes with gear 14 is installed, is connected with the pivoted arm of the usefulness of turning or the rope 16 of turning between bridge 1 and main sliding platform 10 or the main slip keeper.
Tooth bar 15 can be two, and level is installed on track 6 middle parts, and 14 of gears are between two tooth bars 15, make drive unit be positioned at main sliding platform 10 and track 6 middle parts like this, the stress equalization and the not sideslip that operates steadily, and double rack to make the tooth of gear be subjected to active force little, not fragile.
As shown in Figure 5, the rope 16 of turning of the usefulness of turning is for being fixed on main sliding platform 10 or the main slip keeper, and rope is divided into two strands, and its other end is connected on the bridge 1 horizontal direction difference, makes rope and bridge form the triangle rock-steady structure.
Longer for the bridge cantilever, situation about swinging appears more greatly and easily in influences such as wind-engaging, earthquake, vibration when turning, can be as shown in Figure 1, in the both sides of bridge (or a side), also be connected with flexible cable 4 (or stiffening member), one end of flexible cable 4 (or stiffening member) is connected on the secondary sliding platform on the track or on the secondary slip keeper, secondary sliding platform or secondary slip keeper structure can be with main slip keeper or the main sliding platforms among Fig. 2 and Fig. 3.Utilize flexible cable or stiffening member to live bridge 1, to keep in the horizontal direction stable of bridge in the rotary course from the stretch-draw of bridge side.Also be useful on described secondary sliding platform of control (or secondary slip keeper) and the synchronous sychronisation of main sliding platform (or main slip keeper) along slide.Sychronisation can be for directly being connected the synchronous rod member 12 between major-minor platform or the keeper, and is equidistant all the time to keep both.If replace flexible cable 4, then can only be arranged at a side of bridge with truss.
Concrete bridge rotation swivel construction method may further comprise the steps:
(1) the bridge cantilever end rises
With reference to shown in Figure 1, spherical bearing 7 is installed by a bottom portion at bridge 1, and at bridge near mounting bracket 3 on the spherical bearing one end bridge, be connected to form triangle with flexible cable 2 or stiffening member between support 3 tops and the bridge 1, the flexible cable of lifting capstan winch is connected in support 3 tops, after starting capstan winch and utilizing capstan winch and support that the bridge cantilever end is pulled up to the needed angle of rotation, it is on the arc-shaped rail in the center of circle with spherical bearing that flexible cable is positioned one by positioner, for example directly capstan winch is installed on the main sliding platform 10 shown in Figure 3, perhaps flexible cable is fixed on the main slip keeper 8.
(2) bridge is turned
Utilize rotation capstan winch 11 shown in Figure 1 or by motor-driven gear and rack structure, the pulling bridge makes the bridge level rotate to the predetermined horizontal level that closes up, and main sliding platform or main keeper rotate equal angular simultaneously in orbit synchronously in the rotary course; For the situation of laterally disposed flexible cable 4 or stiffening member as shown in Figure 1, also with flexible cable or stiffening member bridge one or both sides and secondary keeper on the track are connected to guarantee bridge stablely in bridge is turned process, secondary keeper and main keeper rotate along slide synchronously when turning.
(3) bridge is transferred
As required, the position that utilizes the lifting capstan winch that bridge is transferred to close up is finished bridge and is turned.
Track, capstan winch, major-minor slip keeper or major-minor platform can be reused after construction is finished.

Claims (10)

1. bridge rotary body device, it is characterized in that: described rotary body device comprises spherical bearing, support and track, spherical bearing is arranged on a bottom portion of bridge, support is fixed on the end that bridge is provided with spherical bearing, described track is circular-arc and is the center of circle with described spherical bearing, drawn flexible cable or stiffening member to connect into triangular structure between cantilever tip and the bridge; Also be provided with the lifting capstan winch, the flexible cable on the lifting capstan winch is connected in described cantilever tip, and flexible cable passes the main slip keeper of installing on the described track along slide, and perhaps capstan winch is directly installed on the main sliding platform on the track; Also comprise and drive the drive unit of turning that bridge rotates.
2. bridge rotary body device according to claim 1, it is characterized in that: in the one or both sides of described bridge, also be connected with flexible cable or stiffening member, one end of flexible cable or stiffening member is connected on the secondary sliding platform on the described track or on the secondary slip keeper, lives bridge is stable from the side; Also be useful on control described secondary sliding platform or secondary slip keeper and described main sliding platform or main slip keeper synchronously along the sychronisation of slide.
3. bridge rotary body device according to claim 2 is characterized in that: described sychronisation is a stiffening member.
4. according to claim 2 or 3 described bridge rotary body devices, it is characterized in that: described secondary slip keeper or secondary sliding platform are to be contained on the described track by concavo-convex tongue-and-groove structure.
5. according to described bridge rotary body device one of in the claim 1 to 3, it is characterized in that: described main slip keeper or main sliding platform are to be contained on the described track by concavo-convex tongue-and-groove structure.
6. according to described bridge rotary body device one of in the claim 1 to 3, it is characterized in that: the described drive unit of turning turns to the flexible cable of capstan winch to be fixed on bridge or described support or described main sliding platform or the main slip keeper for turning to capstan winch; The perhaps described drive unit of turning comprises and being installed on described main sliding platform or the main slip keeper by motor-driven gear, at described track upper edge track tooth bar with described gears engaged is installed, is connected with the pivoted arm or the rope of the usefulness of turning between described bridge and main sliding platform or the main slip keeper.
7. bridge rotary body device according to claim 6, it is characterized in that: the rope of the described usefulness of turning is fixed on main sliding platform or the main slip keeper, rope is divided into two strands, and its other end is connected on the described bridge horizontal direction difference, makes rope and bridge form triangle.
8. bridge rotary body device according to claim 6 is characterized in that: described tooth bar is two, and level is installed on described track middle part, and described and tooth bar meshed gears is between two tooth bars.
9. bridge rotation swivel construction method that utilizes the described bridge rotary body device of claim 1 is characterized in that may further comprise the steps:
(1) bridge one end rises
Spherical bearing is installed by a bottom portion at bridge, and at bridge near mounting bracket on the spherical bearing one end bridge, prop up between top of the trellis and the bridge and connect into triangular structure with flexible cable or stiffening member, the flexible cable of lifting capstan winch is connected in described top of the trellis, utilize capstan winch and support that the bridge other end is pulled up to the needed angle of rotation, it is on the keeper or platform on the arc-shaped rail in the center of circle with spherical bearing that flexible cable is fixed in one;
(2) bridge is turned
The utilization drive unit of turning makes the bridge level rotate to the predetermined horizontal level that closes up, and positioner rotates in orbit synchronously simultaneously;
(3) bridge puts down
Utilize the lifting capstan winch to make bridge rise end and transfer to the position that closes up.
10. bridge rotation swivel construction method according to claim 9, it is characterized in that: also with flexible cable or stiffening member bridge one or both sides and secondary keeper on the track are connected to guarantee bridge stablely in bridge is turned process, secondary keeper and main keeper are synchronously along slide when turning.
CN2010102026953A 2010-06-18 2010-06-18 Bridge rotation device and bridge rotation construction method Expired - Fee Related CN101864739B (en)

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Cited By (11)

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Publication number Priority date Publication date Assignee Title
CN102733317A (en) * 2012-07-22 2012-10-17 中铁二十局集团第一工程有限公司 Plane rotation construction technique for steel truss girder for existing bridge spanning construction
CN102839609A (en) * 2012-08-23 2012-12-26 中交第二航务工程局有限公司 Ladder type vertical rotating auxiliary device for aquatic horizontally transported bridge tower
CN103147408A (en) * 2013-04-03 2013-06-12 中铁西南科学研究院有限公司 Bridge rotation constructing process and rotation system
CN103194981A (en) * 2013-04-02 2013-07-10 中铁大桥局股份有限公司 System and method for bridge steel tower maritime vertical rotation construction
CN105019364A (en) * 2015-08-04 2015-11-04 武船重型工程股份有限公司 Method for slipping and vertically swinging steel tower
CN106223210A (en) * 2016-08-31 2016-12-14 李连秀 A kind of automatization's rotation swivel construction method and system that there is observing and controlling and certainly close up function
CN107489109A (en) * 2017-09-19 2017-12-19 武船重型工程股份有限公司 A kind of rotating device of bridge subsection
CN107700369A (en) * 2017-09-20 2018-02-16 中铁武汉勘察设计研究院有限公司 A kind of design and construction method of bridge rotating under pole asymmetrical state
CN108221711A (en) * 2018-01-12 2018-06-29 中铁九局集团有限公司 Across existing railway Business Line freely-supported tied arch pushing tow flat turn and high-order fall girder apparatus
CN110093866A (en) * 2019-05-10 2019-08-06 贵州科润华机电设备有限公司 A kind of the large-scale workpiece rotating platform and application method of bridge construction
CN110144831A (en) * 2019-06-04 2019-08-20 中铁三局集团第二工程有限公司 A kind of rotating method for the swivel structure of continuous beam and for controlling swivel

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102733317A (en) * 2012-07-22 2012-10-17 中铁二十局集团第一工程有限公司 Plane rotation construction technique for steel truss girder for existing bridge spanning construction
CN102733317B (en) * 2012-07-22 2014-08-06 中铁二十局集团第一工程有限公司 Plane rotation construction technique for steel truss girder for existing bridge spanning construction
CN102839609A (en) * 2012-08-23 2012-12-26 中交第二航务工程局有限公司 Ladder type vertical rotating auxiliary device for aquatic horizontally transported bridge tower
CN102839609B (en) * 2012-08-23 2014-06-25 中交第二航务工程局有限公司 Ladder type vertical rotating auxiliary device for aquatic horizontally transported bridge tower
CN103194981A (en) * 2013-04-02 2013-07-10 中铁大桥局股份有限公司 System and method for bridge steel tower maritime vertical rotation construction
CN103194981B (en) * 2013-04-02 2015-06-10 中铁大桥局集团有限公司 System and method for bridge steel tower maritime vertical rotation construction
CN103147408A (en) * 2013-04-03 2013-06-12 中铁西南科学研究院有限公司 Bridge rotation constructing process and rotation system
CN105019364A (en) * 2015-08-04 2015-11-04 武船重型工程股份有限公司 Method for slipping and vertically swinging steel tower
CN106223210A (en) * 2016-08-31 2016-12-14 李连秀 A kind of automatization's rotation swivel construction method and system that there is observing and controlling and certainly close up function
CN107489109A (en) * 2017-09-19 2017-12-19 武船重型工程股份有限公司 A kind of rotating device of bridge subsection
CN107700369A (en) * 2017-09-20 2018-02-16 中铁武汉勘察设计研究院有限公司 A kind of design and construction method of bridge rotating under pole asymmetrical state
CN107700369B (en) * 2017-09-20 2019-04-16 中铁武汉勘察设计研究院有限公司 A kind of design and construction method of bridge rotating under pole asymmetrical state
CN108221711A (en) * 2018-01-12 2018-06-29 中铁九局集团有限公司 Across existing railway Business Line freely-supported tied arch pushing tow flat turn and high-order fall girder apparatus
CN110093866A (en) * 2019-05-10 2019-08-06 贵州科润华机电设备有限公司 A kind of the large-scale workpiece rotating platform and application method of bridge construction
CN110144831A (en) * 2019-06-04 2019-08-20 中铁三局集团第二工程有限公司 A kind of rotating method for the swivel structure of continuous beam and for controlling swivel

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