CN103147408A - Bridge rotation constructing process and rotation system - Google Patents
Bridge rotation constructing process and rotation system Download PDFInfo
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- CN103147408A CN103147408A CN2013101144621A CN201310114462A CN103147408A CN 103147408 A CN103147408 A CN 103147408A CN 2013101144621 A CN2013101144621 A CN 2013101144621A CN 201310114462 A CN201310114462 A CN 201310114462A CN 103147408 A CN103147408 A CN 103147408A
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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 the 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 that built up from 1977, and built nearly 200 bridge blocks of rotation swivel construction method are adopted in the whole nation.Rotator construction is from the mountain development to the Plain; The weight of turning rises to ton by kiloton; Rotator construction technique is also developed into without balance rotator construction, vertical transfer construction, vertical transfer by the balance rotator construction and adds the construction of flatting turn, and has obtained technical economic benefit preferably.
Because rotator construction has greater advantages such as both not affecting navigation under wired operation, bridge, driving, crossing over deep valley, river, both wiredly obtaining a large amount of utilizations when building the overpass beam.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 amounts to 135 railway lines, and the 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 the high-speed railway operation, and grade separation passage construction demand quantity along the line is huge.On August 23rd, 2010, Ministry of Railways's engineering design evaluating center telegram " emergency notice of verifying about carrying out PDL Construction relevant issues designs " is pointed out: should forbid to build public affairs (iron) roads cross-line overpass bridge on built Line for Passenger Transportation, should take the safety measure such as Bridge Rotation Construction Technique in the time of must building and report Ministry of Railways's approval.Based on this background, the technique of turning as can be known is one of following Main Trends of The Development across both wired overpass bridge beam construction technologies.
But rotator construction also exposes more problem when obtaining the good technique economic benefit.The first, the bridge of employing rotator construction technique, its turning hinge system cost is high, and is disposable use, and the wasting of resources is very big; The second, the turning hinge system is bridge one design, fails to carry out rotator construction generalization, standardization, regularization; The 3rd, do not form perfect, a reliable security control system of cover; The 4th, adopt at present the bridge of the technique of turning mostly to be steel concrete and encased structures, the construction period is longer, has greatly restricted the Bridge Rotation Construction Technique progress.Therefore, how safety, fast, the development of the propelling bridge rotating technique of saving seems particularly urgent.
Summary of the invention
One object of the present invention just is 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 just is to provide the bridge rotating system that a kind of safety is good, versatility is good, save cost, can be recycled, thereby solves the problem that above-mentioned prior art exists fully.
Purpose of the present invention realizes by following technical proposals:
A kind of Bridge Rotation Construction Technique technique is characterized in that, comprises the following steps:
(1) after Main Pier of Bridges and bent cap are built and completed and reach design strength, at the bent cap end face, rotor system is installed;
(2) with the rotor system level-off and be fixed;
(3) be temporarily fixed at the beam body on rotor system and carry out counterweight and install;
(4) rotor system carries out balance adjustment, carries out preliminary operation after balance adjustment is complete, and then rotor system is turned the beam body and the beam body dropped to the design attitude the bent cap top, takes out rotor system, completes beam body rotator construction.
Further, step (1) middle cover back section is provided with sliding rail, and spacer pad has been built on sliding rail both sides, spacer pad top erection support, and 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 the spill mounting groove, and there is rotating shaft at the mounting groove center, and top rotary table is placed in mounting groove and coordinates with the rotating shaft activity; Horizontal hydraulic pressure jack group and vertical hydraulic jack group are circumferentially evenly installed along lower rotary table, 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 the continuously tensioning jack.
Further, vertical hydraulic jack group jacking rotor system in step (2), the adjustment rotor system is level, horizontal hydraulic pressure jack group holds out against the spacer pad of both sides rotor system is fixed.
Further, in step (4), the continuously tensioning jack pulls traction steel bundle to drive the top rotary table rotation, thereby drive the beam body and turn to design attitude, then vertical hydraulic jack group drops to the beam body on bearing, then horizontal hydraulic pressure jack group pressure release, at last rotor system is released from sliding rail, thereby completed beam body rotator construction.
Further, build lifting platform in Main Pier of Bridges both sides, jack-up system is installed on lifting platform, the bent cap end face on Main Pier of Bridges is installed turning hinge, and carry out leveling and fix, the beam body is temporarily fixed on turning hinge, and turning hinge drives the beam body and turns to design attitude, and the jack-up system jack up girder breaks away from itself and turning hinge, 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 in and is used for the rotation of traction top rotary table on lower 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 the spill mounting groove, and there is rotating shaft at the mounting groove center, and top rotary table is placed in mounting groove and coordinates with the rotating shaft activity.
Further, described draw-gear comprises and turns to fixed pulley, traction steel bundle and continuously tensioning jack, turns to fixed pulley and continuously tensioning jack to be installed on lower rotary table, and 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 the 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 circumferentially evenly installed along lower rotary table.
Compared with prior art, beneficial effect of the present invention is: this Bridge Rotation Construction Technique technique, and both having had the tradition technique of turning does not affect under bridge navigation, both advantages such as wired utilization; The characteristics such as have again that technological process is simple, subitem systems technology mature and reliable, supporting rotor system are simple to operate, fully realize reusing.And this rotor system is simple in structure, and is easy to use, safe, versatility good, can be recycled, thereby greatly reduces equipment and the operating expenses of the technique of turning.This rotator construction technique and rotor system are applicable to adopt across both wired, river or valley all kinds of bridges such as highway, municipal administration of rotator construction, particularly for both wired constructions of going up across grade separation, have great application and promotional value.
Description of drawings
Fig. 1 is the little tonnage bridge rotation construction structure of the present invention 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, 2 is lower rotary table, 3 are traction steel bundle, and 4 is mounting groove, and 5 is the continuously tensioning jack, 6 is air level, and 7 are the insurance leg, and 8 for turning to fixed pulley, 9 are rotating shaft, and 10 is the politef plate, and 11 is horizontal hydraulic pressure jack group, 12 is vertical hydraulic jack group, and 13 is the radiation stiffening rib, and 14 is annular stiffening rib, 15 is horizontal load-bearing rib, 16 is vertical load-bearing rib, and 17 is bent cap, and 18 is spacer pad, 19 is the 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.
The specific embodiment
The present invention is further illustrated below in conjunction with specific embodiments and the drawings.
To shown in Figure 5, a kind of Bridge Rotation Construction Technique technique comprises the following steps as Fig. 1:
(1) after Main Pier of Bridges and bent cap 17 are built and are completed and reach design strength, at bent cap 17 tops, sliding rail is set, spacer pad 18 has been built on the sliding rail both sides, spacer pad 18 top erection supports 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 centers, top rotary table 1 is placed in mounting groove 4 and coordinates with rotating shaft 9 is movable, horizontal hydraulic pressure jack group 11 and vertical hydraulic jack group 12 are circumferentially evenly installed along lower rotary table 2, and vertical hydraulic jack group 12 is initially the state of stretching out, turn to fixed pulley 8 and continuously tensioning jack 5 to be installed on lower rotary table 2, traction steel bundle 3 one ends are 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 systems, the adjustment rotor system is level, horizontal hydraulic pressure jack group 11 holds out against the spacer pad 18 of both sides rotor system is fixed;
(3) beam body 19 is temporarily fixed at top rotary table 1 top of rotor system, goes up and carry out counterweight and install, keep at a certain distance away between beam body 19 bottom surfaces and bearing 20;
(4) rotor system carries out balance adjustment, carry out preliminary operation after balance adjustment is complete, then formally carry out beam body rotator construction, continuously tensioning jack 5 pulls traction steel bundle 3 to drive top rotary table 1 and rotates, thereby drive beam body 19 and turn to design attitude, then vertical hydraulic jack group 12 drops to beam body 19 on bearing 20, then horizontal hydraulic pressure jack group 11 pressure releases, at last rotor system is released from sliding rail, thereby completed beam body rotator construction.
Above-mentioned Bridge Rotation Construction Technique technique is applicable to the rotator construction of little tonnage bridge (the beam body weight is less than or equal to 100 tons).
as shown in Figure 6, large heavy girder (the beam body weight is greater than 100 tons) is carried out rotator construction, jack-up system in above-mentioned rotor system can independently arrange, build lifting platform 22 in Main Pier of Bridges 21 both sides, jack-up system 23 is installed on lifting platform 22, bent cap 17 end faces on Main Pier of Bridges 21 are installed turning hinge 24, and carry out leveling and fix, beam body 19 is temporarily fixed on turning hinge 24, turning hinge 24 drives beam body 19 and turns to design attitude, jack-up system 23 jack up girders 19 break away from itself and turning hinge 24, take out turning hinge 24, 23 times general who has surrendered's beam bodies 19 of jack-up system are placed on bent cap 17, remove jack-up system 23 and lifting platform 22, complete the rotator construction of beam body 19.
As extremely shown in Figure 5 in Fig. 1, 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 surfaces are provided with polyfluortetraethylene plate 10, along mounting groove 4 inwalls, insurance leg 7 are set, and there is rotating shaft 9 at mounting groove 4 centers, apply butter layer or the lubricated silicone grease that one deck adds the tetrafluoro powder in polyfluortetraethylene plate 10 and rotating shaft 9, top rotary table 1 is placed in mounting groove 4 and coordinates with rotating shaft 9 is movable; Described draw-gear comprises and turns to fixed pulley 8, traction steel bundle 3 and continuously tensioning jack 5, turn to fixed pulley 8 and continuously tensioning jack 5 to be installed on lower rotary table 2, traction steel bundle 3 one ends are 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 vertical hydraulic jack group 12 each freely four jack consist of, and horizontal hydraulic pressure jack group 11 and vertical hydraulic jack group 12 are circumferentially evenly installed along lower rotary table 2.
Described horizontal hydraulic pressure jack group 11 and vertical hydraulic jack group 12 all have synchronizing function.Can mat formation polyfluortetraethylene plate and add and be coated with butter of the interior junction of above-mentioned insurance leg 7.
Described lower rotary table 2 is provided with air level 6, for detection of whole rotor system level whether.
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 vertical 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 (the beam body weight is less than or equal to 100 tons).
As shown in Figure 6, as needs, large heavy girder (the beam body weight is greater than 100 tons) is carried out rotator construction, jack-up system 23 and turning hinge 24 in above-mentioned rotor system can independently arrange.
During use, at Main Pier of Bridges 21 both sides installation lifting platforms 22, jack-up system 23 is arranged on lifting platform 22, and turning hinge 24 is installed and debugged to bent cap 17 end faces on Main Pier of Bridges 21, then carries out beam body rotator construction, and after completing, turning hinge 24 is fetched reusable.
The above is only preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a Bridge Rotation Construction Technique technique, is characterized in that, comprises the following steps:
(1) after Main Pier of Bridges and bent cap are built and completed and reach design strength, at the bent cap end face, rotor system is installed;
(2) with the rotor system level-off and be fixed;
(3) be temporarily fixed at the beam body on rotor system and carry out counterweight and install;
(4) rotor system carries out balance adjustment, carries out preliminary operation after balance adjustment is complete, and then rotor system is turned the beam body and the beam body dropped to the design attitude the bent cap top, 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 section 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, traction steel bundle and continuously tensioning jack; Described lower rotary table is provided with the spill mounting groove, and there is rotating shaft at the mounting groove center, and top rotary table is placed in mounting groove and coordinates with the rotating shaft activity; Horizontal hydraulic pressure jack group and vertical hydraulic jack group are circumferentially evenly installed along lower rotary table, 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 the 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), the adjustment rotor system is level, and horizontal hydraulic pressure jack group holds out against the spacer pad of both sides rotor system is fixed.
5. Bridge Rotation Construction Technique technique according to claim 4, it is characterized in that: in step (4), the continuously tensioning jack pulls traction steel bundle to drive the top rotary table rotation, thereby drive the beam body and turn to design attitude, then vertical hydraulic jack group drops to the beam body on bearing, then horizontal hydraulic pressure jack group pressure release, at last rotor system is released from sliding rail, thereby completed 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, jack-up system is installed on lifting platform, bent cap end face on Main Pier of Bridges is installed turning hinge, and carry out leveling and fix, the beam body is temporarily fixed on turning hinge, turning hinge drives the beam body and turns to design attitude, the jack-up system jack up girder breaks away from itself and turning hinge, 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.
7. 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 in and is used for the rotation of traction top rotary table on lower rotary table, horizontal retention mechanism is connected with lower rotary table, and jack-up system independently arranges or is arranged on lower rotary table.
8. rotor system according to claim 7, it is characterized in that: described lower rotary table is provided with the spill mounting groove, and there is rotating shaft at the mounting groove center, and top rotary table is placed in mounting groove and coordinates with the rotating shaft activity.
9. rotor system according to claim 8, it is characterized in that: described draw-gear comprises and turns to fixed pulley, traction steel bundle and continuously tensioning jack, 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 the continuously tensioning jack.
10. rotor system according to claim 9, it is characterized in that: described horizontal retention mechanism is horizontal hydraulic pressure jack group, jack-up system is vertical hydraulic jack group, and horizontal hydraulic pressure jack group and vertical hydraulic jack group are circumferentially evenly installed along lower rotary table.
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Inventor after: Cao Wen Inventor after: Zhang Sanfeng Inventor after: Tang Ying Inventor after: Zhou Shu Inventor after: Fu Xianchao Inventor after: Hu Anqing Inventor after: Chen Shundong Inventor after: Chen Yang Inventor after: Qiu Ke Inventor before: Cao Wen Inventor before: Fu Xianchao Inventor before: Li Xianjing Inventor before: Hu Anqing |