CN103147408B - Bridge rotation constructing process and rotation system - Google Patents
Bridge rotation constructing process and rotation system Download PDFInfo
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- CN103147408B CN103147408B CN201310114462.1A CN201310114462A CN103147408B CN 103147408 B CN103147408 B CN 103147408B CN 201310114462 A CN201310114462 A CN 201310114462A CN 103147408 B CN103147408 B CN 103147408B
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Abstract
The invention discloses a bridge rotation constructing process. A rotation system which is easy and convenient to manufacture, install and debug, and is safe, reliable and universal is researched. The rotation system mainly comprises a rotating hinge and a traction system. The process comprises the following steps of: realizing the bridge rotation firstly; and unloading the rotor system by using a hydraulic synchronous jacking technique, so that cyclic utilization of the rotation system is realized. The invention further discloses a rotation system, which comprises an upper rotating disk, a lower rotating disk, a jacking system, a horizontal fastening mechanism and a traction device, wherein the upper rotating disk and the lower rotating disk are rotationally connected relatively; the traction device is fixedly arranged on the lower rotating disk, and is used for driving the upper rotating disk to rotate; the horizontal fastening mechanism is connected with the lower rotating disk; and the jacking system is independently arranged on or arranged on the lower rotating disk. The rotation system has the advantages that the rotation system can be recycled after construction, so that the construction cost is lowered; and the rotation system is simple in structure, and can be recycled, so that equipment and construction costs of a rotation process are lowered.
Description
Technical field
The invention belongs to Bridge Rotation Construction Technique technical field, particularly relate to a kind of Bridge Rotation Construction Technique technique and rotor system.
Background technology
Bridge is built so far in the Suining of the First rotator construction built up from 1977, and the whole nation adopts rotation swivel construction method to build nearly 200 bridge blocks.Rotator construction is from mountain development to Plain; Weight of turning rises to ton by kiloton; Rotator construction technique is also developed into by balance rotator construction and adds flat turn construct without balance rotator construction, vertical transfer construction, vertical transfer, achieves good technical economic benefit.
Do not affect both greater advantages such as navigation, driving under wired operation, bridge because rotator construction has, cross over deep valley, river, both wired build overpass beam time obtain a large amount of utilization.Along with the enforcement of " china railway the sixth time speed-raising ", China is the Eleventh Five-Year Plan period stepping into " high ferro epoch ", and railway has welcome beyond example high speed, great-leap-forward development, and railway transportation is reached advanced world standards; By the end of the year 2010, the whole nation will amount to 135 railway lines, and china railway revenue kilometres reach 9.10 ten thousand kilometers, occupy the second in the world; Wherein the high ferro mileage that puts into effect reaches 8358 kilometers, and mileage is high ranks first in the world in high-speed railway operation, grade separation passage construction demand substantial amounts along the line.On August 23rd, 2010, Ministry of Railways's engineering design evaluating center telegram " emergency notice about carrying out PDL Construction relevant issues design verification " is pointed out: should forbid to build public affairs (iron) road cross-line overpass bridge on built Line for Passenger Transportation, should take the safety measures such as Bridge Rotation Construction Technique and report the Ministry of Railways to ratify when must build.Based on this background, known technique of turning is one of following Main Trends of The Development across both wired overpass bridge beam construction technologies.
But rotator construction also exposes more problem while obtaining good technique economic benefit.The first, adopt the bridge of rotator construction technique, its turning hinge system cost is high, and is single use, and the wasting of resources is very big; The second, turning hinge system is bridge one design, fails to carry out rotator construction generalization, standardization, regularization; 3rd, do not form a set of perfect, reliable security control system; 4th, adopt the bridge of technique of turning mostly to be steel concrete and encased structures at present, the construction period is longer, greatly constrains Bridge Rotation Construction Technique progress.Therefore, how safely the development of the propelling bridge rotating technique of, fast, saving seems particularly urgent.
Summary of the invention
One object of the present invention is just to provide a kind of Bridge Rotation Construction Technique technique, solves the not re-usable problem of turning hinge that existing rotator construction exists.
Another object of the present invention is just to provide the bridge rotating system that a kind of safety is good, versatility is good, save cost, can be recycled, thus solves above-mentioned prior art Problems existing completely.
Object of the present invention is realized by following technical proposals:
A kind of Bridge Rotation Construction Technique technique, is characterized in that, comprise the following steps:
(1) Main Pier of Bridges and bent cap have been built and after reaching design strength, have been installed rotor system at bent cap end face;
(2) rotor system level-off is fixed;
(3) beam body to be temporarily fixed on rotor system and to carry out counterweight installation;
(4) rotor system carries out balance adjustment, carries out preliminary operation after balance adjustment, and then beam body is turned, to design attitude, beam body dropped to bent cap top by rotor system, takes out rotor system, completes beam body rotator construction.
Further, step (1) middle cover back portion is provided with sliding rail, and spacer pad has been built on sliding rail both sides, and spacer pad top erection support, rotor system is arranged on sliding rail, is between spacer pad.
Further, described rotor system comprises top rotary table, lower rotary table, vertical hydraulic jack group, horizontal hydraulic pressure jack group, turns to fixed pulley, draws steel bundle and continuously tensioning jack; Described lower rotary table is provided with spill mounting groove, and there is rotating shaft at mounting groove center, and top rotary table is placed in mounting groove and coordinates with rotating shaft activity; Horizontal hydraulic pressure jack group and vertical hydraulic jack group are evenly installed along lower rotary table circumference, and vertical hydraulic jack group is initially the state of stretching out; Turn to fixed pulley and continuously tensioning jack to be installed on lower rotary table, traction steel Shu Yiduan is connected with top rotary table, and traction steel bundle is walked around and turned to fixed pulley, and the other end is connected with continuously tensioning jack.
Further, vertical hydraulic jack group jacking rotor system in step (2), adjustment rotor system is level, and rotor system is fixed by the spacer pad that horizontal hydraulic pressure jack group holds out against both sides.
Further, in step (4), continuously tensioning jack pulls traction steel bundle to drive top rotary table to rotate, thus drive beam body to turn to design attitude, then beam body drops on bearing by vertical hydraulic jack group, then horizontal hydraulic pressure jack group pressure release, finally rotor system is released from sliding rail, thus complete beam body rotator construction.
Further, build lifting platform in Main Pier of Bridges both sides, lifting platform installs jack-up system, the bent cap end face on Main Pier of Bridges installs turning hinge, and carry out leveling and fix, beam body is temporarily fixed in turning hinge, and turning hinge drives beam body to turn to design attitude, and jack-up system jack up girder makes itself and turning hinge depart from, take out turning hinge, under jack-up system, general who has surrendered Liang Ti is placed on bent cap, removes jack-up system and lifting platform, completes the rotator construction of beam body.
A kind of rotor system, comprise top rotary table, lower rotary table, jack-up system, horizontal retention mechanism and draw-gear, it is characterized in that: described top rotary table relatively rotates with lower rotary table and is connected, draw-gear is installed on lower rotary table and rotates for drawing top rotary table, horizontal retention mechanism is connected with lower rotary table, and jack-up system independently arranges or is arranged on lower rotary table.
Further, described lower rotary table is provided with spill mounting groove, and there is rotating shaft at mounting groove center, and top rotary table is placed in mounting groove and coordinates with rotating shaft activity.
Further, described draw-gear comprises and turns to fixed pulley, traction steel bundle and continuously tensioning jack, and turn to fixed pulley and continuously tensioning jack to be installed on lower rotary table, traction steel Shu Yiduan is connected with top rotary table, traction steel bundle is walked around and is turned to fixed pulley, and the other end is connected with continuously tensioning jack.
Further, described horizontal retention mechanism is horizontal hydraulic pressure jack group, and jack-up system is vertical hydraulic jack group, and horizontal hydraulic pressure jack group and vertical hydraulic jack group are evenly installed along lower rotary table circumference.
Compared with prior art, beneficial effect of the present invention is: this Bridge Rotation Construction Technique technique, and both having had tradition technique of turning not to affect under bridge the advantages such as navigation, both wired utilization; Have again that technological process is simple, reliable, the supporting rotor system of subitem system technology matures is simple to operate, realize features such as can reusing completely.And this rotor system structure is simple, easy to use, safety is high, versatility good, can be recycled, thus greatly reduces equipment and the operating expenses of technique of turning.This rotator construction technique and rotor system are applicable to adopt all kinds of bridge such as highway, municipal administration of rotator construction across both wired, river or valley, particularly for both wired upper constructions across grade separation, have great application and promotional value.
Accompanying drawing explanation
Fig. 1 is the present invention's little tonnage bridge rotation construction structure schematic diagram;
Fig. 2 is the A-A sectional view of rotor system in Fig. 1;
Fig. 3 is the B-B sectional view of rotor system in Fig. 1;
Fig. 4 is the C-C sectional view of rotor system in Fig. 1;
Fig. 5 is the D-D sectional view of rotor system in Fig. 1;
Fig. 6 is large heavy girder rotation construction structure schematic diagram of the present invention.
Mark in figure, 1 is top rotary table, and 2 is lower rotary table, 3 is traction steel bundle, and 4 is mounting groove, and 5 is continuously tensioning jack, 6 is air level, and 7 is insurance leg, and 8 for turning to fixed pulley, 9 is rotating shaft, and 10 is politef plate, and 11 is horizontal hydraulic pressure jack group, 12 is vertical hydraulic jack group, and 13 is radiation stiffening rib, and 14 is annular stiffening rib, 15 is horizontal load-bearing rib, 16 is longitudinal load-bearing rib, and 17 is bent cap, and 18 is spacer pad, 19 is beam body, 20 is bearing, and 21 is Main Pier of Bridges, and 22 is lifting platform, 23 is jack-up system, and 24 is turning hinge.
Detailed description of the invention
Below in conjunction with specific embodiments and the drawings, the present invention is further illustrated.
As shown in Figures 1 to 5, a kind of Bridge Rotation Construction Technique technique, comprises the following steps:
(1) Main Pier of Bridges and bent cap 17 have been built and after reaching design strength, at bent cap 17 top, sliding rail is set, spacer pad 18 has been built on sliding rail both sides, spacer pad 18 top erection support 20, rotor system is arranged on sliding rail, be between spacer pad 18, described rotor system comprises top rotary table 1, lower rotary table 2, vertical hydraulic jack group 12, horizontal hydraulic pressure jack group 11, turn to fixed pulley 8, traction steel bundle 3 and continuously tensioning jack 5, described lower rotary table 2 is provided with spill mounting groove 4, there is rotating shaft 9 at mounting groove 4 center, top rotary table 1 is placed in mounting groove 4 and coordinates with rotating shaft 9 activity, horizontal hydraulic pressure jack group 11 and vertical hydraulic jack group 12 are evenly installed along lower rotary table 2 circumference, and vertical hydraulic jack group 12 is initially the state of stretching out, fixed pulley 8 and continuously tensioning jack 5 is turned to be installed on lower rotary table 2, traction steel bundle 3 one end is connected with top rotary table 1, traction steel bundle 3 is walked around and is turned to fixed pulley 8, the other end is connected with continuously tensioning jack 5,
(2) vertical hydraulic jack group 12 jacking rotor system, adjustment rotor system is level, and rotor system is fixed by the spacer pad 18 that horizontal hydraulic pressure jack group 11 holds out against both sides;
(3) beam body 19 is temporarily fixed at top rotary table 1 top of rotor system, goes up and carry out counterweight installation, keeping at a certain distance away between beam body 19 bottom surface and bearing 20;
(4) rotor system carries out balance adjustment, preliminary operation is carried out after balance adjustment, then beam body rotator construction is formally carried out, continuously tensioning jack 5 pulls traction steel bundle 3 to drive top rotary table 1 to rotate, thus drive beam body 19 to turn to design attitude, then beam body 19 drops on bearing 20 by vertical hydraulic jack group 12, then horizontal hydraulic pressure jack group 11 pressure release, finally rotor system is released from sliding rail, thus complete beam body rotator construction.
Above-mentioned Bridge Rotation Construction Technique technique is applicable to the rotator construction of little tonnage bridge (beam body weight is less than or equal to 100 tons).
As shown in Figure 6, rotator construction is carried out to large heavy girder (beam body weight is greater than 100 tons), jack-up system in above-mentioned rotor system can independently be arranged, lifting platform 22 is built in Main Pier of Bridges 21 both sides, lifting platform 22 is installed jack-up system 23, bent cap 17 end face on Main Pier of Bridges 21 installs turning hinge 24, and carry out leveling and fix, beam body 19 is temporarily fixed in turning hinge 24, turning hinge 24 drives beam body 19 to turn to design attitude, jack-up system 23 jack up girder 19 makes itself and turning hinge 24 depart from, take out turning hinge 24, jack-up system 23 times general who has surrendered's beam bodies 19 are placed on bent cap 17, remove jack-up system 23 and lifting platform 22, complete the rotator construction of beam body 19.
As shown in Figures 1 to 5, a kind of rotor system, comprise top rotary table 1, lower rotary table 2, jack-up system, horizontal retention mechanism and draw-gear, described lower rotary table 1 is provided with spill mounting groove 4, mounting groove 4 bottom surface is provided with polyfluortetraethylene plate 10, and arrange insurance leg 7 along mounting groove 4 inwall, there is rotating shaft 9 at mounting groove 4 center, polyfluortetraethylene plate 10 and rotating shaft 9 apply butter layer or the lubrication silicone grease that one deck adds tetrafluoro powder, and top rotary table 1 is placed in mounting groove 4 and coordinates with rotating shaft 9 activity; Described draw-gear comprises and turns to fixed pulley 8, traction steel bundle 3 and continuously tensioning jack 5, fixed pulley 8 and continuously tensioning jack 5 is turned to be installed on lower rotary table 2, traction steel bundle 3 one end is connected with top rotary table 1, traction steel bundle 3 is walked around and is turned to fixed pulley 8, and the other end is connected with continuously tensioning jack 5; Described horizontal retention mechanism is horizontal hydraulic pressure jack group 11, jack-up system is vertical hydraulic jack group 12, horizontal hydraulic pressure jack group 11 and each freedom of vertical hydraulic jack group 12 four jack are formed, and horizontal hydraulic pressure jack group 11 and vertical hydraulic jack group 12 are evenly installed along lower rotary table 2 circumference.
Described horizontal hydraulic pressure jack group 11 and vertical hydraulic jack group 12 all have synchronizing function.In above-mentioned insurance leg 7, junction can be mated formation polyfluortetraethylene plate add painting butter.
Described lower rotary table 2 is provided with air level 6, for detecting whole rotor system whether level.
As shown in Figure 3 and Figure 5, described top rotary table 1 is provided with radiation stiffening rib 13 and annular stiffening rib 14, and lower rotary table 2 is provided with horizontal load-bearing rib 15 and longitudinal load-bearing rib 16.
The structure that above-mentioned jack-up system and lower rotary table 2 are combined into one is suitable for the rotator construction of little tonnage bridge (beam body weight is less than or equal to 100 tons).
As shown in Figure 6, as needs carry out rotator construction to large heavy girder (beam body weight is greater than 100 tons), the jack-up system 23 in above-mentioned rotor system and turning hinge 24 can independently be arranged.
During use, install lifting platform 22 in Main Pier of Bridges 21 both sides, jack-up system 23 is arranged on lifting platform 22, and bent cap 17 end face on Main Pier of Bridges 21 is installed and debugs turning hinge 24, and then carry out beam body rotator construction, after completing, turning hinge 24 is fetched reusable.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a Bridge Rotation Construction Technique technique, is characterized in that, comprises the following steps:
(1) Main Pier of Bridges and bent cap have been built and after reaching design strength, have been installed rotor system at bent cap end face;
(2) rotor system level-off is fixed;
(3) beam body to be temporarily fixed on rotor system and to carry out counterweight installation;
(4) rotor system carries out balance adjustment, carries out preliminary operation after balance adjustment, and then beam body is turned, to design attitude, beam body dropped to bent cap top by rotor system, takes out rotor system, completes beam body rotator construction.
2. Bridge Rotation Construction Technique technique according to claim 1, it is characterized in that: step (1) middle cover back portion is provided with sliding rail, and spacer pad has been built on sliding rail both sides, spacer pad top erection support, rotor system is arranged on sliding rail, is between spacer pad.
3. Bridge Rotation Construction Technique technique according to claim 2, is characterized in that: described rotor system comprises top rotary table, lower rotary table, vertical hydraulic jack group, horizontal hydraulic pressure jack group, turns to fixed pulley, draws steel bundle and continuously tensioning jack; Described lower rotary table is provided with spill mounting groove, and there is rotating shaft at mounting groove center, and top rotary table is placed in mounting groove and coordinates with rotating shaft activity; Horizontal hydraulic pressure jack group and vertical hydraulic jack group are evenly installed along lower rotary table circumference, and vertical hydraulic jack group is initially the state of stretching out; Turn to fixed pulley and continuously tensioning jack to be installed on lower rotary table, traction steel Shu Yiduan is connected with top rotary table, and traction steel bundle is walked around and turned to fixed pulley, and the other end is connected with continuously tensioning jack.
4. Bridge Rotation Construction Technique technique according to claim 3, it is characterized in that: vertical hydraulic jack group jacking rotor system in step (2), adjustment rotor system is level, and rotor system is fixed by the spacer pad that horizontal hydraulic pressure jack group holds out against both sides.
5. Bridge Rotation Construction Technique technique according to claim 4, it is characterized in that: in step (4), continuously tensioning jack pulls traction steel bundle to drive top rotary table to rotate, thus drive beam body to turn to design attitude, then beam body drops on bearing by vertical hydraulic jack group, then horizontal hydraulic pressure jack group pressure release, finally rotor system is released from sliding rail, thus complete beam body rotator construction.
6. Bridge Rotation Construction Technique technique according to claim 1, it is characterized in that: build lifting platform in Main Pier of Bridges both sides, lifting platform installs jack-up system, bent cap end face on Main Pier of Bridges installs turning hinge, and carry out leveling and fix, beam body is temporarily fixed in turning hinge, turning hinge drives beam body to turn to design attitude, jack-up system jack up girder makes itself and turning hinge depart from, take out turning hinge, under jack-up system, general who has surrendered Liang Ti is placed on bent cap, removes jack-up system and lifting platform, completes the rotator construction of beam body.
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| CN201310114462.1A CN103147408B (en) | 2013-04-03 | 2013-04-03 | Bridge rotation constructing process and rotation system |
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| CN201310114462.1A CN103147408B (en) | 2013-04-03 | 2013-04-03 | Bridge rotation constructing process and rotation system |
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| CN103147408B true CN103147408B (en) | 2015-04-08 |
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| KR100682344B1 (en) * | 2005-08-03 | 2007-02-15 | 명보산공 주식회사 | Rotation Apparatus of constructing temporary bridge |
| CN101864739B (en) * | 2010-06-18 | 2011-07-20 | 徐国彬 | Bridge rotation device and bridge rotation construction method |
| CN102373672B (en) * | 2010-08-26 | 2013-08-21 | 中铁工程设计咨询集团有限公司 | Vertical rotating hinge system for arch rib structure |
| CN102116011B (en) * | 2011-01-07 | 2012-12-05 | 中铁四局集团第二工程有限公司 | No-balance-weight horizontal-rotation construction method of steel truss girder bridge spanning railway operating line |
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| CN108755445A (en) * | 2018-01-18 | 2018-11-06 | 重庆溢权科技发展有限公司 | Bridge Rotation Construction Technique long-range control method based on PLC |
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