CN205329560U - Large -span continuous beam bridge strides existing station rotation construction with system of turning - Google Patents

Large -span continuous beam bridge strides existing station rotation construction with system of turning Download PDF

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Publication number
CN205329560U
CN205329560U CN201521137076.5U CN201521137076U CN205329560U CN 205329560 U CN205329560 U CN 205329560U CN 201521137076 U CN201521137076 U CN 201521137076U CN 205329560 U CN205329560 U CN 205329560U
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CN
China
Prior art keywords
rotary
annular
cushion cap
laid
slide track
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CN201521137076.5U
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Chinese (zh)
Inventor
吴信军
石鸿江
杜越
秦青山
聂树东
王亚胜
王军刚
李龙吉
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中铁二十局集团第一工程有限公司
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Priority to CN201521137076.5U priority Critical patent/CN205329560U/en
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Publication of CN205329560U publication Critical patent/CN205329560U/en

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Abstract

The utility model discloses a large -span continuous beam bridge strides existing station rotation construction with system of turning, including the under bracing dish, lie in under bracing dish directly over and the midspan buttress that drives large -span continuous beam bridge synchronous pivoted carries out and on the carousel, install in turn ball pivot and drive and go up the carousel carry out the rotatory traction system that turns on the horizontal plane of under bracing dish and the bridge between the last carousel, the under bracing coils and last carousel is reinforced concrete structure just the two all is the level and lays, the traction system that turns is connected with last carousel, rotating upward the portion of trying to get to the heart of a matter and being provided with a plurality of spikes of evenly laying along the circumferencial direction, be provided with the annular slide track who supplies a plurality of spikes to slide on the lower cushion cap, annular slide track is that the level is laid and it lies in the carousel under, and pre -buried in the lower cushion cap have couple annular slide track to carry out the annular steel skeleton that supports. The utility model has the advantages of simple structure and reasonable design and the construction is simple and convenient, excellent in use effect, can portably accomplish large -span continuous beam bridge's rotation construction process to the process of turning is steady.

Description

A kind of Large-Span Continuous girder span building up station rotator construction rotor system

Technical field

This utility model belongs to technical field of bridge construction, especially relates to a kind of Large-Span Continuous girder span building up station rotator construction rotor system。

Background technology

China railway construction is in gold period, and large quantities of Lines for Passenger Transportation, inter-city passenger rail in succession go into operation and come into operation。The special technical requirement of Line for Passenger Transportation, causes it can not adopt usual friendship mouth as common railway。The thing followed be the increase in Line for Passenger Transportation across existing railway in operation main track, railway station, highway construction, the crossing construction cycle is long, and Business Line Influence to operation is big, and potential safety hazard highlights。

Bridge Rotation Construction Technique is the ball pivot and slideway and turntable structure that utilize coefficient of friction only small, and with simple equipment, the huge bridge structure in both sides that will have built, integral-rotation is installed and put in place。Zhanyi County's grand bridge and Zhang Jiatian grand bridge are Shanghai elder brother's special line for passenger trains Yunnan Section weight difficult point engineerings。Zhanyi County grand bridge total length 1768.386m, this bridge 27#~30# pier with (72+128+72) rice continuous beam with 25.3 ° of angles of cut across station, running railway line Zhanyi County, cross over 6 station tracks;Filling according to original position is outstanding, main span projects 105 meters and is positioned at both wired tops, affects the cycle longer。And (60+100+60) the rice continuous beam set up on the long 898.563m of Zhang Jiatian grand bridge full-bridge, this bridge 15# pier~18# pier with 40 ° of angles of cut across station, running railway line Gui-Kun Railway Malong, cross over 5 station tracks;Main span projects 66 meters and is positioned at both wired tops, affects the cycle longer。Wherein, the girder of above-mentioned two bridge is the In Reinforced Concrete Box Girder being inclined cross existing railway station and its beam body is single box single chamber, And of Varying Depth, variable section structure, in girder, the height of 0# block (being namely supported in the beam section directly over bridge pier) is 10m and its top bottom width degree respectively 12m and 7.1m, top bottom width degree respectively 12m and the 6.7m of other sections beam body, closure section box beam height is 5.5m, and bridge cantilever section list T structure weight is 8600 tons。

In practice of construction process, because of many across both wired electric railways, station continuous beam quantity on the elder brother's special line for passenger trains of Shanghai, risk source is numerous, and potential safety hazard is excessive, adopts rotator construction, can reduce the driving to railway and disturb, the shortening influence time to railway and station。But turn in station, span is big, beam body Heavy Weight, and risk is high, and the duration is tight, and difficulty of construction is big。Therefore, the construction of later similar engineering there is important directive significance by the research of large-span continuous beam spanning existing railway station Construction Technology of Level Swing Method。

Utility model content

Technical problem to be solved in the utility model is in that for above-mentioned deficiency of the prior art, a kind of Large-Span Continuous girder span building up station rotator construction rotor system is provided, its simple in construction, reasonable in design and easy construction, result of use are good, easy can complete the construction by swing of large-span continuous beam, and process of turning is steady。

For solving above-mentioned technical problem, the technical solution adopted in the utility model is: a kind of Large-Span Continuous girder span building up station rotator construction rotor system, it is characterized in that: include lower support dish, it is arranged in directly over described lower support dish and drives the top rotary table carrying out synchronous axial system across buttress of constructed large-span continuous beam, it is installed on the bridge rotating ball pivot between described lower support dish and top rotary table and the trailer system of turning driving top rotary table to rotate in the horizontal plane, described lower support dish and top rotary table are reinforced concrete structure and both is that level is laid, described trailer system of turning is attached with top rotary table;Described bridge rotating ball pivot includes lower ball pivot, be installed on the upper ball pivot directly over lower ball pivot, be connected to lower ball pivot and in the middle part of upper ball pivot between pivot pin and be supported in the support frame immediately below lower ball pivot, described lower ball pivot and upper ball pivot are all laid in level, and pivot pin is in vertically to laying;Described lower support dish is lower cushion cap, and described support frame is embedded in lower cushion cap, and lower ball pivot is fixedly mounted on described support frame;Described lower ball pivot is installed on above the middle part of lower cushion cap, is fastenedly connected bottom upper ball pivot top and top rotary table;Constructed large-span continuous beam is supported on top rotary table and it is positioned at the surface of top rotary table across buttress;Constructed large-span continuous beam is cross over the In Reinforced Concrete Box Girder of building up station, in described across buttress in vertically to lay and its by construction large-span continuous beam across the armored concrete buttress being supported;

Described top rotary table is circular, and the bottom of described top rotary table is provided with multiple spike, and multiple described spikes are along the circumferential direction uniformly laid, and multiple described spikes are concrete filled steel tube and its top and are fastenedly connected with top rotary table;Multiple described spikes are all in vertically to laying;

Being provided for the annular slide track of multiple described spike sliding on described lower cushion cap, described annular slide track is that level is laid and it is positioned at the underface of top rotary table;Multiple described spikes are respectively positioned on above annular slide track;Described annular slide track is positioned at outside lower ball pivot;Being embedded with the annular steel skeleton that annular slide track is supported in described lower cushion cap, described annular slide track is fixed on described annular steel skeleton;Described lower cushion cap is divided into bottom cushion cap and is positioned at the top cushion cap above the cushion cap of bottom, and described support frame and described annular steel skeleton are all embedded in the cushion cap of top。

Above-mentioned a kind of Large-Span Continuous girder span building up station rotator construction rotor system, is characterized in that: the gap bottom each described spike and between annular slide track is 6mm~8mm。

Above-mentioned a kind of Large-Span Continuous girder span building up station rotator construction rotor system, is characterized in that: the structure of multiple described spikes is all identical with size;Described spike is by the first vertical steel pipe and the xoncrete structure built in described first vertical steel pipe, and the external diameter of described first vertical steel pipe is Φ 60mm~Φ 80mm and its wall thickness is 12mm~16mm。

Above-mentioned a kind of Large-Span Continuous girder span building up station rotator construction rotor system, is characterized in that: equal pad has slide plate bottom each described spike and between annular slide track。

Above-mentioned a kind of Large-Span Continuous girder span building up station rotator construction rotor system, it is characterized in that: described annular slide track includes annular splicing steel plate and the ring stainless steel plate being laid on annular splicing steel plate, described annular splicing Interal fixation is on described annular steel skeleton, and described lower cushion cap top has the annular mounting groove installed for annular splicing steel plate;It is fastenedly connected by the many groups of connecting bolts circumferentially laid between described annular splicing steel plate and described annular steel skeleton;Described connecting bolt is height adjustment bolt。

Above-mentioned a kind of Large-Span Continuous girder span building up station rotator construction rotor system, it is characterized in that: also include the closing disk structure that top rotary table and described lower support dish are fastenedly connected, described closing disk structure be xoncrete structure and it include the upper closing disk structure outside top rotary table and on described lower closing disk structure between closing disk structure and described lower support dish, the cross section of described upper closing disk structure is that annular and itself and top rotary table are built and be integrated, the lateral wall of described lower closing disk structure be the face of cylinder and its with described upper closing disk structure in coaxial laying, described lower closing disk structure and described lower support dish are built and are integrated and its external diameter is more than the external diameter of described upper closing disk structure, and described upper closing disk structure builds with described lower closing disk structure and is integrated;Described upper ball pivot, lower ball pivot, annular slide track and multiple described spike are all built in described lower closing disk structure;It is provided with steel reinforcement cage in described closing disk structure, passes through vertically to be connected reinforcing bar described in multiple tracks between the steel reinforcement cage of described lower cushion cap and the steel reinforcement cage in closing disk structure and be fastenedly connected。

Above-mentioned a kind of Large-Span Continuous girder span building up station rotator construction rotor system, it is characterized in that: described in trailer system of turning include two traction apparatuss being installed on lower cushion cap and two hauling ropes being connected respectively with two described traction apparatuss, two described traction apparatuss are parallel laying;Two described traction apparatuss are respectively laid in front side traction apparatus and the rear side traction apparatus of both sides before and after annular slide track, and described rear side traction apparatus and the traction apparatus of described front side lay respectively at the left and right sides of annular slide track;The traction apparatus of described front side includes the first hydraulic jack and props up the first reaction support stood on the left of the first hydraulic jack, described first reaction support is fixedly mounted on lower cushion cap and it is in vertically to laying, and described first hydraulic jack be level laying and itself and the perpendicular laying of the first reaction support;Described rear side traction apparatus includes the second hydraulic jack and props up the second reaction support stood on the right side of the second hydraulic jack, described second reaction support is fixedly mounted on lower cushion cap and it is in vertically to laying, and described second hydraulic jack be level laying and itself and the perpendicular laying of the second reaction support;The first hauling rope that hauling rope described in twice is respectively connected with the first hydraulic jack and the second hauling rope being connected with the second hydraulic jack, the structure of hauling rope described in twice is identical and both is by being divided into front side embedded section, middle part to be wound around section and rear side linkage section after forward direction;

The first anchoring piece for described first hauling rope front end anchoring and the second anchoring piece for described second hauling rope front end anchoring it is embedded with in described top rotary table, the front side embedded section of described first hauling rope is embedded in top rotary table and its front end is anchored on the first anchoring piece, and the middle part of described first hauling rope is wound around section and is wrapped on the lateral wall of top rotary table and rear side linkage section and the connection of the first hydraulic jack;The front side embedded section of described second hauling rope is embedded in top rotary table and its front end is anchored on the second anchoring piece, and the middle part of described second hauling rope is wound around section and is wrapped on the lateral wall of top rotary table and rear side linkage section and the connection of the second hydraulic jack。

Above-mentioned a kind of Large-Span Continuous girder span building up station rotator construction rotor system, is characterized in that: the front side embedded section of hauling rope described in twice be L-shaped and its in the middle part of be wound around section and be arc, the rear side linkage section of hauling rope described in twice is linear;Described in twice, hauling rope is steel strand wires;Two described traction apparatuss are centrosymmetric laying centered by pivot pin, and hauling rope described in twice is centrosymmetric laying centered by pivot pin;Hauling rope described in described first hydraulic jack, the second hydraulic jack and twice is all laid in same level。

Above-mentioned a kind of Large-Span Continuous girder span building up station rotator construction rotor system, is characterized in that: also include rotating limiting device;Described rotating limiting device includes two bottoms and is embedded in the positive stop in lower cushion cap and two tops are all embedded in the postive stop baffle in top rotary table, and two described postive stop baffles are all in vertically to laying and the two and pivot pin are all laid on same vertical plane;Two described postive stop baffles are respectively positioned on above annular slide track, and two described positive stops are all laid on same vertical plane with pivot pin;

Each described positive stop all includes two and is laid in the pre-buried channel-section steel of both sides inside annular slide track respectively, and two described pre-buried channel-section steels are all in being vertically laid on same vertical plane to laying and both;Each described postive stop baffle is provided with two groups and respectively two described pre-buried channel-section steels is carried out spacing spacing steel plate, often organizing described spacing steel plate and all include the spacing steel plate in inside and outside two notches that can be installed in described pre-buried channel-section steel, described in two groups, spacing steel plate is all laid in the same side of postive stop baffle;Each described spacing steel plate all with its perpendicular laying of laid postive stop baffle。

Above-mentioned a kind of Large-Span Continuous girder span building up station rotator construction rotor system, is characterized in that: also include the temporary support structure being supported between top rotary table and annular slide track;Described temporary support structure includes the sandbox along the circumferential direction uniformly laid, and the group number of described sandbox is identical with the quantity of spike and itself and spike are be laid staggeredly;Described sandbox is in vertically to laying;It is provided with division board between each described sandbox top and top rotary table。

This utility model compared with prior art has the advantage that

1, simple in construction, reasonable in design and easy construction, result of use are good, institute's constructing continuous beam can carry out smooth rotation and process safety of turning, and process of turning is easily controllable。

2, construction method is simple, reasonable in design and easy construction, result of use are good, can be effectively ensured ball pivot installation accuracy, and it is relatively low to put into construction cost。

3, the trailer system simple in construction of turning that adopts, reasonable in design and install and easy and simple to handle, result of use good, plane swivel process can be effectively ensured and proceed smoothly, and process control simplicity of turning, and can realize accurately joining the two sections of a bridge, etc of constructed large-span continuous beam。

4, the annular slide track simple in construction, easy construction and the result of use that adopt are good, and match with multiple spikes, can ensure that large-span continuous beam is turned process simplicity, steadily。

5, result of use is good and practical value is high, can easy, be rapidly completed the construction by swing of Large-Span Continuous girder span building up station, work progress safety;Further, plane swivel Process Design rationally and is turned conveniently, can easy, quickly, safely, favorably accomplish plane swivel process, and both wired interference is few, greatly reduce security risk。

In sum, this utility model simple in construction, reasonable in design and easy construction, result of use are good, easy can complete the construction by swing of large-span continuous beam, and process of turning is steady。

Below by drawings and Examples, the technical solution of the utility model is described in further detail。

Accompanying drawing explanation

Fig. 1 is facade structures schematic diagram of the present utility model。

Fig. 2 is the planar structure schematic diagram of this utility model lower support dish, spike, temporary support structure, the first reaction support and the second reaction support。

Fig. 3 is planar structure schematic diagram of the present utility model。

Fig. 4 is the structural representation of this utility model postive stop baffle and spacing steel plate。

Fig. 5 is construction method FB(flow block) of the present utility model。

Fig. 6 is the installation position schematic diagram of this utility model annular slide track。

Fig. 7 is the structural representation of this utility model annular splicing steel plate。

Fig. 8 is that this utility model is turned the structural representation of trailer system。

Fig. 9 by adopt this utility model to construction large-span continuous beam carry out rotator construction time Construction State schematic diagram。

Description of reference numerals:

1 second buttress;2 the 3rd buttresses;Across front side beam section in 3-1;

3-2 midspan closing section;Across rear side beam section in 3-3;Beam section on front side of 4-1 end bay;

4-2 end bay closure section;Beam section on rear side of 4-3 end bay;5-1 top rotary table;

5-16 closing disk structure;Ball pivot under 5-2;The upper ball pivot of 5-3;

5-4 pivot pin;Cushion cap under 5-41;5-5 spike;

Cushion cap bottom 5-51;5-52 top cushion cap;5-6 sandbox;

5-7 annular slide track;5-71 annular splicing steel plate;5-72 ring stainless steel plate;

The levelling steel plate of 5-73;5-8 postive stop baffle;5-81 hauling rope;

The spacing steel plate of 5-9;5-10 the first hydraulic jack;5-11 the first reaction support;

5-12 the second hydraulic jack;5-13 the second reaction support;

5-14 the first anchoring piece;5-15 the second anchoring piece;

Beam body on front side of in the of 6;Beam body on rear side of in the of 7。

Detailed description of the invention

As shown in Figure 1, Figure 2, shown in Fig. 3 and Fig. 4, this utility model includes lower support dish, carries out the top rotary table 5-1 of synchronous axial system, the bridge rotating ball pivot being installed between described lower support dish and top rotary table 5-1 across buttress and drive the top rotary table 5-1 trailer system of turning rotated in the horizontal plane directly over described lower support dish and in the constructed large-span continuous beam of drive, described lower support dish and top rotary table 5-1 are reinforced concrete structure and both is that level is laid, described in trailer system of turning be attached with top rotary table 5-1;Described bridge rotating ball pivot includes lower ball pivot 5-2, be installed on the upper ball pivot 5-3 directly over lower ball pivot 5-2, be connected to lower ball pivot 5-2 and in the middle part of upper ball pivot 5-3 between pivot pin 5-4 and be supported in the support frame immediately below lower ball pivot 5-2, described lower ball pivot 5-2 and upper ball pivot 5-3 all lays in level, and pivot pin 5-4 is in vertically to laying;Described lower support dish is lower cushion cap 5-41, and described support frame is embedded in lower cushion cap 5-41, and lower ball pivot 5-2 is fixedly mounted on described support frame;Described lower ball pivot 5-2 is installed on above the middle part of lower cushion cap 5-41, is fastenedly connected bottom upper ball pivot 5-3 top and top rotary table 5-1;Constructed large-span continuous beam is supported on top rotary table 5-1 and it is positioned at the surface of top rotary table 5-1 across buttress;Constructed large-span continuous beam is cross over the In Reinforced Concrete Box Girder of building up station, in described across buttress in vertically to lay and its by construction large-span continuous beam across the armored concrete buttress being supported。

Described top rotary table 5-1 is circular, and the bottom of described top rotary table 5-1 is provided with multiple spike 5-5, and multiple described spike 5-5 along the circumferential direction uniformly lay, and multiple described spike 5-5 are concrete filled steel tube and its top and are fastenedly connected with top rotary table 5-1;Multiple described spike 5-5 are all in vertically to laying。

Being provided for the annular slide track 5-7, described annular slide track 5-7 of multiple described spike 5-5 sliding on described lower cushion cap 5-41 is that level is laid and it is positioned at the underface of top rotary table 5-1;Multiple described spike 5-5 are respectively positioned on above annular slide track 5-7;Described annular slide track 5-7 is positioned at outside lower ball pivot 5-2;Being embedded with the annular steel skeleton that annular slide track 5-7 is supported in described lower cushion cap 5-41, described annular slide track 5-7 is fixed on described annular steel skeleton;Described lower cushion cap 5-41 is divided into bottom cushion cap 5-51 and is positioned at the top cushion cap 5-52 above the cushion cap 5-51 of bottom, and described support frame and described annular steel skeleton are all embedded in the cushion cap 5-52 of top。

As it is shown in figure 5, when this utility model is constructed, comprise the following steps:

Step 101, lower cushion cap forming panel prop up vertical and bottom cushion cap concrete pouring construction: the forming panel for the lower cushion cap 5-41 that constructs carries out Zhi Li, and the steel reinforcement cage arranged in lower cushion cap 5-41 is carried out colligation;Again bottom cushion cap 5-51 is carried out concrete pouring construction, it is thus achieved that the bottom cushion cap 5-51 of construction molding;

Step 102, lower ball pivot and annular slide track are installed: install described support frame and described annular steel skeleton on first described bottom cushion cap 5-51 in a step 101, ball pivot 5-2 under fixedly mounting on described support frame again, and fixedly mount annular slide track 5-7 on described annular steel skeleton;

Step 103, top cushion cap concrete pouring construction: top cushion cap 5-52 is carried out concrete pouring construction, it is thus achieved that the lower cushion cap 5-41 of construction molding;

Step 104, upper ball pivot lift: installed in a step 102 on mounted lower ball pivot 5-2 by pivot pin 5-4, then by directly over upper ball pivot 5-3 lifting to lower ball pivot 5-2, and by pivot pin 5-4, upper ball pivot 5-3 and lower ball pivot 5-2 is attached;

Step 105, spike are installed: in a step 102 on the annular slide track 5-7 of installation, install multiple described spike 5-5;

Step 106, top rotary table forming panel prop up vertical and concrete pouring construction: set up falsework on the lower cushion cap 5-41 of construction molding in step 103, on described falsework, prop up the forming panel stood for the top rotary table 5-1 that constructs again, and the steel reinforcement cage arranged in top rotary table 5-1 is carried out colligation;Afterwards, top rotary table 5-1 is carried out concrete pouring construction, it is thus achieved that the top rotary table 5-1 of construction molding;

In step 105, the top of multiple described spike 5-5 is all fastenedly connected with top rotary table 5-1 and is integrated;Step 105 carries out spike when installing, also need to the equal multiple correcting wedge of pad bottom each described spike 5-5 and between annular slide track 5-7, multiple described correcting wedges are along the circumferential direction laid。

In the present embodiment, the gap bottom each described spike 5-5 and between annular slide track 5-7 is 6mm~8mm。

In the present embodiment, equal pad has 12 described correcting wedges bottom each described spike 5-5 and between annular slide track 5-7。

During practice of construction, can according to specific needs, the quantity of institute's pad correcting wedge bottom each described spike 5-5 and between annular slide track 5-7 be adjusted accordingly。

As in figure 2 it is shown, in the present embodiment, the structure of multiple described spike 5-5 is all identical with size;Described spike 5-5 is by the first vertical steel pipe and the xoncrete structure built in described first vertical steel pipe, and the external diameter of described first vertical steel pipe is Φ 60mm~Φ 80mm and its wall thickness is 12mm~16mm。Equal pad has slide plate bottom each described spike 5-5 and between annular slide track 5-7。Further, the concrete that described xoncrete structure adopts is C50 slightly expanded concrete。

During practice of construction, the described xoncrete structure of each described spike 5-5 is all built with top rotary table 5-1 and is integrated。Thus, multiple described spike 5-5 tops are all embedded in bottom top rotary table 5-1。Practice of construction is easy, and fixed。

In the present embodiment, the quantity of described spike 5-5 is 8。Further, 8 described spike 5-5 are in uniformly laying。

When spike 5-5 is installed, adopt multiple described correcting wedge to carry out support top and guarantee the gap bottom spike 5-5 and between annular slide track 5-7, it is prevented that spike 5-5 falls on annular slide track 5-7;Before plane swivel construction, described correcting wedge is taken down, reaffirm the gap bottom spike 5-5 and between annular slide track 5-7, after without exception, between spike 5-5 and annular slide track 5-7, lay the thick slide plate of 5mm。During plane swivel construction, during as occurred that beam-ends absolute altitude changes, spike 5-5 will fall on described slide plate, and rely on annular slide track 5-7 support to carry out smooth rotation, it is thus possible to ensure guarantee beam body smooth rotation。

Further, described slide plate is politef slide plate。

In the present embodiment, described correcting wedge is steel cushion block。

In the present embodiment, as it is shown in figure 1, be provided with bottom each described spike 5-5 in level lay walk andante。

Further, the thickness of slab walking andante described in is 3cm。

In the present embodiment, described annular slide track 5-7 includes annular splicing steel plate 5-71 and the ring stainless steel plate 5-72 being laid on annular splicing steel plate 5-71, described annular splicing steel plate 5-71 is fixed on described annular steel skeleton, and described lower cushion cap 5-41 top has for the annular splicing steel plate 5-71 annular mounting groove installed;It is fastenedly connected by the many groups of connecting bolts circumferentially laid between described annular splicing steel plate 5-71 and described annular steel skeleton;Described connecting bolt is height adjustment bolt。

In the present embodiment, the described height adjustment bolt of many groups is all laid on described support frame and it is in uniformly laying。

Under fixedly mounting on described support frame in step 102 during ball pivot 5-2, by multiple described height adjustment bolt, the height of lower ball pivot 5-2 being adjusted, described lower ball pivot 5-2 is fixedly mounted on described support frame by multiple described height adjustment bolt。

During actual installation, by multiple described height adjustment bolt, the absolute altitude of lower ball pivot 5-2 is finely tuned。

Construction method as shown in Figure 5, method is simple, reasonable in design and easy construction, result of use are good, can be effectively ensured ball pivot installation accuracy。Owing to ball pivot installation accuracy is the most critical ingredient of constructing swivel bridge, the installation accuracy of ball pivot directly influences the quality turned and the safety of process of turning, hereby it is ensured that ball pivot installation accuracy, swivel bridges can be made steadily to rotate in place accurately in rotation process。

In the present embodiment, the width of described annular slide track 5-7 is 1.0m and its central radius is 3.95m, multiple described spike 5-5 are distributed on annular slide track 5-7 symmetrically and evenly, and during plane swivel construction, each spike 5-5 slides in annular slide track 5-7, keep swivel structure steady。

As shown in Figure 1, in the present embodiment, this utility model also includes the top rotary table 5-1 closing disk structure 5-16 being fastenedly connected with described lower support dish, described closing disk structure 5-16 be xoncrete structure and it include the upper closing disk structure outside top rotary table 5-1 and on described lower closing disk structure between closing disk structure and described lower support dish, the cross section of described upper closing disk structure is that annular and itself and top rotary table 5-1 are built and be integrated, the lateral wall of described lower closing disk structure be the face of cylinder and its with described upper closing disk structure in coaxial laying, described lower closing disk structure and described lower support dish are built and are integrated and its external diameter is more than the external diameter of described upper closing disk structure, and described upper closing disk structure builds with described lower closing disk structure and is integrated;Described upper ball pivot 5-3, lower ball pivot 5-2, annular slide track 5-7 and multiple described spike 5-5 all build in described lower closing disk structure。It is provided with steel reinforcement cage in described closing disk structure 5-16, passes through vertically to be connected reinforcing bar described in multiple tracks between steel reinforcement cage and the steel reinforcement cage in closing disk structure 5-16 of described lower cushion cap 5-41 and be fastenedly connected。

In the present embodiment, when step 103 carries out top cushion cap concrete pouring construction, also in the cushion cap 5-52 of top, need to vertically connect reinforcing bar described in pre-buried multiple tracks。

In the present embodiment, the upper surface of described lower ball pivot 5-2 is that on concave spherical surface and its upper surface, tiling has a strata tetrafluoroethene slide plate。The bottom surface of described upper ball pivot 5-3 is convex spherical, and described upper ball pivot 5-3 is positioned at the inside upper part of lower ball pivot 5-2。

In the present embodiment, the model of described bridge rotating ball pivot is LQJ85000 type。The panel of described bridge rotating ball pivot adopts Q345 steel plate, and ball pivot diameter is 3600mm。The radius of described upper ball pivot 5-3 is 7992mm, and the radius of lower ball pivot 5-2 is 8000mm, and the diameter of pivot pin set is Φ 273mm, and pin diameter is Φ 230mm, and whole ball pivot is welded on described support frame。

During practice of construction, described lower cushion cap 5-41 is rectangle cushion cap。In the present embodiment, the length of described lower cushion cap 5-41 is 18.5m and it is highly for 14.5m, and the height of described bottom cushion cap 5-51 is 2.7m。

As shown in Figure 6, described annular slide track 5-7 includes annular splicing steel plate 5-71 and the ring stainless steel plate 5-72 being laid on annular splicing steel plate 5-71, described annular splicing steel plate 5-71 is fixed on described annular steel skeleton, and described lower cushion cap 5-41 top has for the annular splicing steel plate 5-71 annular mounting groove installed;It is fastenedly connected by the many groups of connecting bolts circumferentially laid between described annular splicing steel plate 5-71 and described annular steel skeleton。

During practice of construction, it is fixedly connected with welding manner between described ring stainless steel plate 5-72 and annular splicing steel plate 5-71。Further, the apical side height of the described annular splicing steel plate 5-71 apical side height lower than lower cushion cap 5-41。

As it is shown in fig. 7, described annular splicing steel plate 5-71 is spliced by the curved plate that multi-blocked structure is all identical with size, it is fixedly connected with welding manner between adjacent two described curved plates。The thickness of slab of described curved plate is 2cm~3cm。In the present embodiment, described annular splicing steel plate 5-71 is spliced by the curved plate that eight block structures are all identical with size, and, it is attached each through two pieces of levelling steel plate 5-73 between adjacent two described curved plates。The thickness of slab of described ring stainless steel plate 5-72 is 3mm。

As shown in Figure 6, this utility model also includes the temporary support structure that is supported between top rotary table 5-1 and annular slide track 5-7。

Described temporary support structure includes that the group number of sandbox 5-6, described sandbox 5-6 along the circumferential direction uniformly laid is identical with the quantity of spike 5-5 and itself and spike 5-5 are laid staggeredly;Described sandbox 5-6 is in vertically to laying。In the present embodiment, described falsework be bowl button support and its adopt described temporary support structure to be supported。

In the present embodiment, when step 105 carries out spike installation, also need on the annular slide track 5-7 of installation in a step 102, the described sandbox 5-6 of many groups is installed respectively。

In the present embodiment, described sandbox 5-6 is the second vertical steel pipe that sand is filled in inside。Further, the external diameter of described second vertical steel pipe is Φ 45mm~Φ 50mm。

During practice of construction, in described temporary support structure, the structure of all sandbox 5-6 is all identical with size。

In the present embodiment, often organize described sandbox 5-6 and all include two sandbox 5-6 being laid between adjacent two described spike 5-5。

Further, it is provided with division board between each described sandbox 5-6 top and top rotary table 5-1。So, before facilitating plane swivel construction, sandbox 5-6 is removed。

During practice of construction, organize described sandbox 5-6 be placed in annular slide track 5-7 on and its before plane swivel construction as the main weight bearing area of T structure, bear the weight of superstructure。Adopting dry normal sand to fill in described sandbox 5-6, the sandbox 5-6 installed adopts 400t jack to carry out compacting, and in observation sandbox 5-6, the settling amount of institute's sand loading, lifts when incompressible。

As shown in Figure 8, described in trailer system of turning include two traction apparatuss being installed on lower cushion cap 5-41 and two hauling rope 5-81 being connected respectively with two described traction apparatuss, two described traction apparatuss are parallel laying;Two described traction apparatuss are respectively laid in front side traction apparatus and the rear side traction apparatus of both sides before and after annular slide track 5-7, and described rear side traction apparatus and the traction apparatus of described front side lay respectively at the left and right sides of annular slide track 5-7;The traction apparatus of described front side includes the first hydraulic jack 5-10 and props up the first reaction support 5-11 stood on the left of the first hydraulic jack 5-10, described first reaction support 5-11 is fixedly mounted on lower cushion cap 5-41 and it is in vertically to laying, and described first hydraulic jack 5-10 be level laying and itself and the first perpendicular laying of reaction support 5-11;Described rear side traction apparatus includes the second hydraulic jack 5-12 and props up the second reaction support 5-13 stood on the right side of the second hydraulic jack 5-12, described second reaction support 5-13 is fixedly mounted on lower cushion cap 5-41 and it is in vertically to laying, and described second hydraulic jack 5-12 be level laying and itself and the second perpendicular laying of reaction support 5-13;The first hauling rope that hauling rope 5-81 described in twice is respectively connected with the first hydraulic jack 5-10 and the second hauling rope being connected with the second hydraulic jack 5-12, the structure of hauling rope 5-81 described in twice is identical and both is by being divided into front side embedded section, middle part to be wound around section and rear side linkage section after forward direction。

The first anchoring piece 5-14 for described first hauling rope front end anchoring and the second anchoring piece 5-15 for described second hauling rope front end anchoring it is embedded with in described top rotary table 5-1, the front side embedded section of described first hauling rope is embedded in top rotary table 5-1 and its front end is anchored on the first anchoring piece 5-14, and the middle part of described first hauling rope is wound around section and is wrapped on the lateral wall of top rotary table 5-1 and rear side linkage section and the first hydraulic jack 5-10 connection;The front side embedded section of described second hauling rope is embedded in top rotary table 5-1 and its front end is anchored on the second anchoring piece 5-15, and the middle part of described second hauling rope is wound around section and is wrapped on the lateral wall of top rotary table 5-1 and rear side linkage section and the second hydraulic jack 5-12 connection。

In the present embodiment, when top rotary table 5-1 is carried out concrete pouring construction by step 106, the front side embedded section by hauling rope 5-81 described in twice is also needed all to be embedded in top rotary table 5-1。

In the present embodiment, the front side embedded section of hauling rope 5-81 described in twice be L-shaped and its in the middle part of be wound around section be arc, the rear side linkage section of hauling rope 5-81 described in twice is linear。

Further, described in twice, hauling rope 5-81 is steel strand wires。

During actual installation, two described traction apparatuss are centrosymmetric laying centered by pivot pin 5-4, and hauling rope 5-81 described in twice is centrosymmetric laying centered by pivot pin 5-4。

Further, hauling rope 5-81 described in described first hydraulic jack 5-10, the second hydraulic jack 5-12 and twice is all laid in same level。

In the present embodiment, described first hydraulic jack 5-10 and the second hydraulic jack 5-12 is continuous jack。

In the present embodiment, when described in twice, construct with plane swivel in the direction of hauling rope 5-81 winding on top rotary table 5-1, the rotation direction of top rotary table 5-1 is consistent。The degree of depth that anchors into of described hauling rope 5-81 is not less than 4.5 meters, and termination adopts the anchoring of P anchor。

As shown in the above, described turn in trailer system two continuous jack levels respectively, parallel, symmetrical be arranged on described lower support dish, the centrage of each continuous jack must be tangent with the place of the cylindrical steel strands wound of top rotary table 5-1, the centerline height of continuous jack and the centrage level of pre-buried steel twisted wire in top rotary table 5-1, require that two continuous jacks are equal to the distance of top rotary table 5-1 simultaneously。So, plane swivel process can be effectively ensured and proceed smoothly, and process control simplicity of turning, and the accurate closure of constructed large-span continuous beam can be realized。

In the present embodiment, this utility model also includes rotating limiting device;As shown in Figure 2, described rotating limiting device includes the postive stop baffle 5-8 that two bottoms are embedded in the positive stop in lower cushion cap 5-41 and two top is all embedded in top rotary table 5-1, and two described postive stop baffle 5-8 are all in vertically to laying and the two and pivot pin 5-4 are all laid on same vertical plane;Two described postive stop baffle 5-8 are respectively positioned on above annular slide track 5-7, and two described positive stops are all laid on same vertical plane with pivot pin 5-4。

In the present embodiment, when step 103 carries out top cushion cap concrete pouring construction, also need in the cushion cap 5-52 of top positive stop described in pre-buried two groups。

In the present embodiment, described postive stop baffle 5-8 is steel plate。

In the present embodiment, each described positive stop all includes two and is laid in the pre-buried channel-section steel of both sides inside annular slide track 5-7 respectively, and two described pre-buried channel-section steels are all in being vertically laid on same vertical plane to laying and both。Described pre-buried channel-section steel is 30# channel-section steel, and embedment length is 35cm, and the length that leaks outside is 35cm, and perpendicularity is less than 1%。

Correspondingly, as shown in Figure 4, each described postive stop baffle 5-8 is provided with two groups and respectively two described pre-buried channel-section steels is carried out spacing spacing steel plate 5-9, often organizing described spacing steel plate 5-9 and all include the spacing steel plate 5-9 in inside and outside two notches that can be installed in described pre-buried channel-section steel, described in two groups, spacing steel plate 5-9 is all laid in the same side of postive stop baffle 5-8;Each described spacing steel plate 5-9 all with its laid perpendicular laying of postive stop baffle 5-8。

Time actually used, described rotating limiting device can play accurate, effectively turn position-limiting action and easy construction, input cost is relatively low。

In the present embodiment, as shown in Figure 9, the rear and front end of constructed large-span continuous beam be respectively supported on the first buttress and the 4th buttress and wherein across rear and front end be respectively supported at former and later two described on buttress, during former and later two are described on buttress respectively the second buttress 1 and the 3rd buttress 2, described first buttress, second buttress 1, 3rd buttress 2 and described 4th buttress are along the vertical bridge of constructed large-span continuous beam to carrying out from front to back laying and it is armored concrete buttress, described second buttress 1 and the 3rd buttress 2 lay respectively at the left and right sides of described building up station;In constructed large-span continuous beam in being divided into from front to back across front side beam section 3-1, midspan closing section 3-2 and in across rear side beam section 3-3, two end bays of constructed large-span continuous beam are divided into beam section 4-3 on rear side of beam section 4-1 on front side of end bay, end bay closure section 4-2 and end bay all from front to back;Two described end bays of constructed large-span continuous beam be respectively arranged in the described front side edge across both sides, front and back across with back side edge across, in described across front side beam section 3-1 and described front side edge across end bay on rear side of beam section 4-3 form all side beam 6, described all side beam 6 be supported on the second buttress 1 and its with the second buttress 1 composition on front side of T structure cantilever beam;In described across rear side beam section 3-3 and described back side edge across end bay on front side of beam section 4-1 composition rear side beam body 7, described rear side beam body 7 be supported on the 3rd buttress 2 and its with the 3rd buttress 2 composition on rear side of T structure cantilever beam。

During practice of construction, when adopting that constructed large-span continuous beam is carried out rotator construction by rotor system as shown in Figure 1, process is as follows:

Step one, rotor system are constructed: a rotor system of constructing respectively in the bottom of the second buttress 1 and the 3rd buttress 2;

Step 2, the second buttress and the construction of the 3rd buttress: respectively the second buttress 1 and the 3rd buttress 2 are constructed on two the described rotor systems constructed in step one, described second buttress 1 and the 3rd buttress 2 are all supported on the top rotary table 5-1 of described rotor system, and described second buttress 1 and the 3rd buttress 2 are all built with its supported top rotary table 5-1 and be integrated;Described second buttress 1 and the 3rd buttress 2 are all in vertically to laying and the two lays respectively at the surface of two described rotor systems;

Step 3, all side beam 6 are constructed with rear side beam body 7: described all side beam 6 of constructing on the second buttress 1 constructed in step 2, it is thus achieved that the described front side T structure cantilever beam constructed;Meanwhile, the 3rd buttress 2 constructed in step 2 is constructed described rear side beam body 7, it is thus achieved that the described rear side T structure cantilever beam constructed;

In this step, after having constructed, described all side beam 6 and described rear side beam body 7 in parallel laying and the two lay respectively at the left and right sides of described building up station;

Step 4, plane swivel are constructed: utilize two the described rotor systems constructed in step one, and by the trailer system of turning of two described rotor systems, respectively described front side T structure cantilever beam and described rear side T structure cantilever beam are carried out plane swivel construction, until described all side beam 6 is all horizontally rotated design attitude with described rear side beam body 7;

Wherein, when described front side T structure cantilever beam is carried out plane swivel construction, described in trailer system of turning drive described front side T structure cantilever beam to horizontally rotate around the central axis of the second buttress 1;Described rear side T structure cantilever beam is carried out plane swivel construction time, described in turn trailer system drive described rear side T structure cantilever beam horizontally rotate around the central axis of the 3rd buttress 2。

In the present embodiment, carrying out before plane swivel construction in step 4, bottom each described spike 5-5 and between annular slide track 5-7, all pad fills slide plate, and is all taken out by all correcting wedges bottom each spike 5-5 and between annular slide track 5-7。

Further, after step 4 midplane rotator construction completes, also need closing disk structure 5-16 is carried out concrete pouring construction, and by closing disk structure 5-16 top rotary table 5-1 is fastenedly connected with described lower support dish and is integrated。Further, before closing disk structure 5-16 is carried out concrete pouring construction, first top rotary table 5-1 is carried out dabbing process respectively with described lower support dish。

In the present embodiment, after step 4 midplane rotator construction completes, also need two described end bays of constructed large-span continuous beam are carried out closing construction respectively;

And, before two described end bays are carried out closing construction, first to described first buttress, described 4th buttress, described front side edge across end bay on front side of beam section 4-1 and described back side edge across end bay on rear side of beam section 4-3 construct, described front side edge across end bay on front side of beam section 4-1 be supported on described first buttress, described back side edge across end bay on rear side of beam section 4-3 be supported on described 4th buttress;

When the front side edge of constructed large-span continuous beam is stepped into row closing construction, step 4 horizontally rotates the described all side beam 6 of design attitude and described front side edge across end bay on front side of between beam section 4-1 to described front side edge across end bay closure section 4-2 construct, complete described front side edge across closing construction process;

When the back side edge of constructed large-span continuous beam is stepped into row closing construction, step 4 horizontally rotates the described rear side beam body 7 of design attitude and described back side edge across end bay on rear side of between beam section 4-3 to described back side edge across end bay closure section 4-2 construct, complete described back side edge across closing construction process。

After two described end bays of constructed large-span continuous beam all join the two sections of a bridge, etc, step 4 horizontally rotates centering between the described all side beam 6 of design attitude and described rear side beam body 7 construct across closure section 3-2, complete in constructed large-span continuous beam across closing construction process。

In the present embodiment, described bridge rotating ball pivot also includes the friction pair being installed between lower ball pivot 5-2 and upper ball pivot 5-3。

In practice of construction process, the angle between constructed large-span continuous beam and crossed over building up station is 20 °~45 °, thus constructed large-span continuous beam is inclined cross building up station。In the present embodiment, described building up station is existing railway station。

In the present embodiment, the span of constructed large-span continuous beam is more than 150m。

In the present embodiment, described front side T structure cantilever beam and described rear side T structure cantilever beam are called for short T structure, and it constructs for T-shaped pier consolidation。

In the present embodiment, after having constructed in step 3, described all side beam 6 is all parallel laying with described building up station with described rear side beam body 7。

In the present embodiment, easy for process of turning and angle of turning is accurate, the lateral wall of top rotary table 5-1 is labeled with the graduated disc for observing rotational angle。

During practice of construction, the paper (i.e. described graduated disc) with distance scale and angle index is puted up in the side of top rotary table 5-1, at the pre-buried upwards pointer in described lower support dish top, and pointer is embedded in the position after rotator construction terminates, hang plumb bob simultaneously in the side of top rotary table 5-1, be suspended on original position of turning;After pointer overlaps with plumb bob, plane swivel construction terminates。

In the present embodiment, when the second buttress 1 and the 3rd buttress 2 being constructed in step 2, adopting construction technology routinely to adopt large-scale steel form, pump concrete is built。

In the present embodiment, described all side beam 6 and described rear side beam body 7 are divided into front side cantilever beam section, pier top beam section and rear side cantilever beam section all from front to back;The pier top beam section of described all side beam 6 is positioned at the surface of the second buttress 1 and it is supported on the second buttress 1, and the pier top beam section of described rear side beam body 7 is positioned at the surface of the 3rd buttress 2 and it is supported on the 3rd buttress 2;

Step 3 is constructed on the second buttress 1 described all side beam 6 time, first adopt Support Method that the pier top beam section of described all side beam 6 is constructed, then adopt Hanging Basket that front side cantilever beam section and the rear side cantilever beam section of described all side beam 6 are constructed respectively;During described rear side beam body 7 of constructing on the 3rd buttress 2, first adopt Support Method that the pier top beam section of described rear side beam body 7 is constructed, then adopt Hanging Basket that front side cantilever beam section and the rear side cantilever beam section of described rear side beam body 7 are constructed respectively。

Wherein, Support Method is a kind of construction method being common in cast-in-situ bridge construction at present, specifically takes at regular intervals, gathers and set up and method that passive scaffold carries out bridge construction。Support Method is also referred to as bridge support cast-in-place method, being exactly after bridge substructure has been constructed, set up full framing at continuous beam bridge location place, support is through precompressed, after eliminating inelastic deformation, permanent bearing is installed, anchoring temporarily, installation form, reinforcing bar and pre-stress system are set, according to designing requirement, symmetrical cast-in-place segmentation beam section, after each symmetrical Cast-in-situ Beam body concrete reaches designing requirement, form removal, carry out prestressed stretch-draw mud jacking construction;Construct subsequently into next section cast-in-place, construct across closure segment in finally carrying out and complete system transform, striking。

In the present embodiment, the pier top beam section of described all side beam 6 and described rear side beam body 7 is carried out construction city, all adopts the Support Method of routine to construct;Before construction, first installing permanent bearing in the pier top of the second buttress 1 and the 3rd buttress 2 respectively, this permanent bearing is TJGZ spherical bearing。Before the pier top beam section of described all side beam 6 and described rear side beam body 7 is carried out concreting, need first prestressed pipeline。When the pier top beam section of described all side beam 6 and described rear side beam body 7 is carried out concreting, by first respectively end web, base plate, web and top board being built respectively to rear。

The pier top beam section concreting of described all side beam 6 and described rear side beam body 7 carries out pumping of prostressed duct and prestressed stretch-draw after completing, and stretch-draw carries out sealing off and covering anchorage after completing。

In the present embodiment, when adopting Hanging Basket that the front side cantilever beam section of described all side beam 6 and rear side cantilever beam section are constructed and before adopting Hanging Basket that the front side cantilever beam section of described rear side beam body 7 and rear side cantilever beam section are constructed, need first to install on the Hanging Basket adopted safeguard structure。

In the present embodiment, to described front side edge across end bay closure section 4-2 and described back side edge across end bay closure section 4-2 construct time, all adopt Support Method carry out cast-in-place construction;Centering, when closure section 3-2 constructs, adopts Hanging Basket to construct。

Herein, the Support Method adopted is conventional bridge support cast-in-place method。

In the present embodiment, step 4 carries out before plane swivel construction, for reducing because unbalanced moments causes beam body tipping risk, the frictional resistance reduced between spike 5-5 and annular slide track 5-7;Simultaneously for prevent limit, in configure the impact of the slightly other factors such as deviation and wind load across baseboard prestress, cause that T structure is uneven, also need all side beam 6 and rear side beam body 7 are carried out counterweight respectively, be specifically respectively provided with counterweight in the pier top beam section of all side beam 6 with rear side beam body 7。Herein, counterweight adopts 10t sand pocket。

In the present embodiment, step 4 carries out before plane swivel construction, first carries out preliminary operation, be the important step of work of turning, main purpose checked operation personnel whether clear and definite oneself job duty and concerted reaction ability;Service behaviour after test continuous jack loading, and check oil pump control parameter and inertia braking distance。Strictly controlling beam-ends travel speed during preliminary operation, angular velocity is not more than 0.02rad/min and pontic cantilever end linear velocity is not more than 1.5m/min。

When carrying out plane swivel construction in step 4, uniform rotation, slowly uniform rotation after the starting of T structure, end of main beam horizontal linear velocity controls within 0.9188m/min, and in rotation process, survey crew observes axis off normal repeatedly, and beam-ends position elevation changes。Treat T structure flat turn substantially put in place (being about 1m place from design attitude arc length) slow down, reduce flat turn speed, from design arc length positions 0.5m place, take crawl operate, and coordinate with survey crew confirm crawl operate time beam end displacement。The accurate positioning turned adopts upper and lower triple controls, and one is the rotational angle of top box beam when described lower support dish controls to turn by graduated disc;Two is that top controls namely to be erected at by total powerstation on end bay Cast-in-Situ Segment in the process of turning, and accurately measures beam-ends centerline of turning, and inverse box beam is turned angle;Three is that the range finding rope inverse carrying according to continuous jack and being wrapped in top rotary table 5-1 is turned angle。

After beam body rotate in place, owing to beam body both sides weight is definitely inequal, cause that beam body termination absolute altitude and position and design do not correspond, after rotateing in place, jack is adopted to carry out pose adjustment according to the measurement data absolute altitude to beam body termination and elevation, it is ensured that closure segment precision is in allowable error scope。

In the present embodiment, after step 4 midplane rotator construction completes, also need that T structure is carried out constraint fixing, mainly take following measures that structure carries out constraint fixing:

1. adopt correcting wedge that spike 5-5 is carried out pad to fix, and with electric welding by spike 5-5 and described positive stop solder joint, be welded and fixed together with annular slide track 5-7, it is ensured that T structure will not offset comprehensively。

2., after rotating positioning, utilize type steel support post that the termination of T structure and end bay closure section termination are carried out temporary consolidation。

3. the space of spike 5-5 bottom is adopted high-strength grout, clog closely knit。

4. carry out closing disk concrete pouring construction in time, complete turntable structure sealing with the shortest time。

In the present embodiment, after midspan closing has been constructed, complete Program for structural Transformation;Actual when carrying out Program for structural Transformation, for ensureing stablizing of construction stage, end bay first closes up, and release fine strain of millet pier anchoring, structure is become single-cantilever state by double-cantilever state, and last span centre closes up, and becomes continuous beam stress。

The above; it it is only preferred embodiment of the present utility model; not this utility model is imposed any restrictions; every any simple modification, change and equivalent structure change above example made according to this utility model technical spirit, all still falls within the protection domain of technical solutions of the utility model。

Claims (10)

1. a Large-Span Continuous girder span building up station rotator construction rotor system, it is characterized in that: include lower support dish, it is arranged in directly over described lower support dish and drives the top rotary table (5-1) carrying out synchronous axial system across buttress of constructed large-span continuous beam, it is installed on the bridge rotating ball pivot between described lower support dish and top rotary table (5-1) and the trailer system of turning driving top rotary table (5-1) to rotate in the horizontal plane, described lower support dish and top rotary table (5-1) are reinforced concrete structure and both is that level is laid, described trailer system of turning is attached with top rotary table (5-1);Described bridge rotating ball pivot includes lower ball pivot (5-2), be installed on lower ball pivot (5-2) directly over upper ball pivot (5-3), the pivot pin (5-4) being connected between lower ball pivot (5-2) with upper ball pivot (5-3) middle part and be supported in the support frame of lower ball pivot (5-2) underface, described lower ball pivot (5-2) and upper ball pivot (5-3) are all laid in level, and pivot pin (5-4) is in vertically to laying;Described lower support dish is lower cushion cap (5-41), and described support frame is embedded in lower cushion cap (5-41), and lower ball pivot (5-2) is fixedly mounted on described support frame;Described lower ball pivot (5-2) is installed on above the middle part of lower cushion cap (5-41), and upper ball pivot (5-3) top is fastenedly connected with top rotary table (5-1) bottom;In constructed large-span continuous beam across buttress be supported in top rotary table (5-1) upper and its be positioned at the surface of top rotary table (5-1);Constructed large-span continuous beam is cross over the In Reinforced Concrete Box Girder of building up station, in described across buttress in vertically to lay and its by construction large-span continuous beam across the armored concrete buttress being supported;
Described top rotary table (5-1) is circular, the bottom of described top rotary table (5-1) is provided with multiple spike (5-5), multiple described spikes (5-5) are along the circumferential direction uniformly laid, and multiple described spikes (5-5) are concrete filled steel tube and its top and are fastenedly connected with top rotary table (5-1);Multiple described spikes (5-5) are all in vertically to laying;
Being provided for the annular slide track (5-7) of multiple described spike (5-5) sliding on described lower cushion cap (5-41), described annular slide track (5-7) is laid in level and it is positioned at the underface of top rotary table (5-1);Multiple described spikes (5-5) are respectively positioned on annular slide track (5-7) top;Described annular slide track (5-7) is positioned at lower ball pivot (5-2) outside;Being embedded with the annular steel skeleton that annular slide track (5-7) is supported in described lower cushion cap (5-41), described annular slide track (5-7) is fixed on described annular steel skeleton;Described lower cushion cap (5-41) is divided into bottom cushion cap (5-51) and is positioned at the top cushion cap (5-52) of top, bottom cushion cap (5-51), and described support frame and described annular steel skeleton are all embedded in top cushion cap (5-52)。
2. a kind of Large-Span Continuous girder span building up station rotator construction rotor system described in claim 1, it is characterised in that: the gap between each described spike (5-5) bottom and annular slide track (5-7) is 6mm~8mm。
3. a kind of Large-Span Continuous girder span building up station rotator construction rotor system described in claim 1 or 2, it is characterised in that: the structure of multiple described spikes (5-5) is all identical with size;Described spike (5-5) is by the first vertical steel pipe and the xoncrete structure built in described first vertical steel pipe, and the external diameter of described first vertical steel pipe is Φ 60mm~Φ 80mm and its wall thickness is 12mm~16mm。
4. a kind of Large-Span Continuous girder span building up station rotator construction rotor system described in claim 1 or 2, it is characterised in that: between each described spike (5-5) bottom and annular slide track (5-7), all pad has slide plate。
5. a kind of Large-Span Continuous girder span building up station rotator construction rotor system described in claim 1 or 2, it is characterized in that: described annular slide track (5-7) includes annular splicing steel plate (5-71) and the ring stainless steel plate (5-72) being laid in annular splicing steel plate (5-71), described annular splicing steel plate (5-71) is fixed on described annular steel skeleton, and described lower cushion cap (5-41) top has the annular mounting groove installed for annular splicing steel plate (5-71);It is fastenedly connected by the many groups of connecting bolts circumferentially laid between described annular splicing steel plate (5-71) and described annular steel skeleton;Described connecting bolt is height adjustment bolt。
6. a kind of Large-Span Continuous girder span building up station rotator construction rotor system described in claim 1 or 2, it is characterized in that: also include the closing disk structure (5-16) that top rotary table (5-1) and described lower support dish are fastenedly connected, described closing disk structure (5-16) for xoncrete structure and its include being positioned at top rotary table (5-1) outside upper closing disk structure and on described lower closing disk structure between closing disk structure and described lower support dish, the cross section of described upper closing disk structure is that annular and itself and top rotary table (5-1) are built and be integrated, the lateral wall of described lower closing disk structure be the face of cylinder and its with described upper closing disk structure in coaxial laying, described lower closing disk structure and described lower support dish are built and are integrated and its external diameter is more than the external diameter of described upper closing disk structure, and described upper closing disk structure builds with described lower closing disk structure and is integrated;Described upper ball pivot (5-3), lower ball pivot (5-2), annular slide track (5-7) and multiple described spike (5-5) are all built in described lower closing disk structure;It is provided with steel reinforcement cage in described closing disk structure (5-16), is vertically connected reinforcing bar by multiple tracks between the steel reinforcement cage of described lower cushion cap (5-41) and the steel reinforcement cage in closing disk structure (5-16) and is fastenedly connected。
7. a kind of Large-Span Continuous girder span building up station rotator construction rotor system described in claim 1 or 2, it is characterized in that: described in trailer system of turning include two traction apparatuss being installed on lower cushion cap (5-41) and two hauling ropes (5-81) being connected respectively with two described traction apparatuss, two described traction apparatuss are parallel laying;Two described traction apparatuss are respectively laid in front side traction apparatus and the rear side traction apparatus of both sides before and after annular slide track (5-7), and described rear side traction apparatus and the traction apparatus of described front side lay respectively at the left and right sides of annular slide track (5-7);The traction apparatus of described front side includes the first hydraulic jack (5-10) and props up the first reaction support (5-11) standing on the first hydraulic jack (5-10) left side, described first reaction support (5-11) be fixedly mounted on lower cushion cap (5-41) upper and its in vertically to laying, described first hydraulic jack (5-10) is laid in level and itself and the first reaction support (5-11) perpendicular laying;Described rear side traction apparatus includes the second hydraulic jack (5-12) and props up the second reaction support (5-13) standing on the second hydraulic jack (5-12) right side, described second reaction support (5-13) be fixedly mounted on lower cushion cap (5-41) upper and its in vertically to laying, described second hydraulic jack (5-12) is laid in level and itself and the second reaction support (5-13) perpendicular laying;The first hauling rope that hauling rope described in twice (5-81) is respectively connected with the first hydraulic jack (5-10) and the second hauling rope being connected with the second hydraulic jack (5-12), the structure of hauling rope described in twice (5-81) is identical and both is by being divided into front side embedded section, middle part to be wound around section and rear side linkage section after forward direction;
The first anchoring piece (5-14) for described first hauling rope front end anchoring and the second anchoring piece (5-15) for described second hauling rope front end anchoring it is embedded with in described top rotary table (5-1), the front side embedded section of described first hauling rope is embedded in top rotary table (5-1) and its front end is anchored on the first anchoring piece (5-14), and the middle part of described first hauling rope is wound around section and is wrapped on the lateral wall of top rotary table (5-1) and rear side linkage section and the first hydraulic jack (5-10) connection;The front side embedded section of described second hauling rope is embedded in top rotary table (5-1) and its front end is anchored on the second anchoring piece (5-15), and the middle part of described second hauling rope is wound around section and is wrapped on the lateral wall of top rotary table (5-1) and rear side linkage section and the second hydraulic jack (5-12) connection。
8. a kind of Large-Span Continuous girder span building up station rotator construction rotor system described in claim 7, it is characterized in that: the front side embedded section of hauling rope described in twice (5-81) be L-shaped and its in the middle part of be wound around section be arc, the rear side linkage section of hauling rope described in twice (5-81) is linear;Hauling rope described in twice (5-81) is steel strand wires;Two described traction apparatuss are centrosymmetric laying centered by pivot pin (5-4), and hauling rope described in twice (5-81) is centrosymmetric laying centered by pivot pin (5-4);Hauling rope (5-81) described in described first hydraulic jack (5-10), the second hydraulic jack (5-12) and twice is all laid in same level。
9. a kind of Large-Span Continuous girder span building up station rotator construction rotor system described in claim 1 or 2, it is characterised in that: also include rotating limiting device;Described rotating limiting device includes the postive stop baffle (5-8) that two bottoms are embedded in the positive stop in lower cushion cap (5-41) and two top is all embedded in top rotary table (5-1), and two described postive stop baffles (5-8) are all in vertically to laying and the two and pivot pin (5-4) are all laid on same vertical plane;Two described postive stop baffles (5-8) are respectively positioned on annular slide track (5-7) top, and two described positive stops are all laid on same vertical plane with pivot pin (5-4);
Each described positive stop all includes two pre-buried channel-section steels being laid in both sides, annular slide track (5-7) inner side respectively, and two described pre-buried channel-section steels are all in being vertically laid on same vertical plane to laying and both;Each described postive stop baffle (5-8) is provided with two groups and respectively two described pre-buried channel-section steels is carried out spacing spacing steel plate (5-9), often organizing described spacing steel plate (5-9) and all include the spacing steel plate (5-9) in inside and outside two notches that can be installed in described pre-buried channel-section steel, described in two groups, spacing steel plate (5-9) is all laid in the same side of postive stop baffle (5-8);Each described spacing steel plate (5-9) all with its laid postive stop baffle (5-8) perpendicular laying。
10. a kind of Large-Span Continuous girder span building up station rotator construction rotor system described in claim 1 or 2, it is characterised in that: also include the temporary support structure being supported between top rotary table (5-1) and annular slide track (5-7);Described temporary support structure includes the sandbox (5-6) along the circumferential direction uniformly laid, and the group number of described sandbox (5-6) is identical with the quantity of spike (5-5) and itself and spike (5-5) are be laid staggeredly;Described sandbox (5-6) is in vertically to laying;It is provided with division board between each described sandbox (5-6) top and top rotary table (5-1)。
CN201521137076.5U 2015-12-31 2015-12-31 Large -span continuous beam bridge strides existing station rotation construction with system of turning CN205329560U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105442459A (en) * 2015-12-31 2016-03-30 中铁二十局集团第一工程有限公司 Swivel system for long-span continuous beam span existing station swivel construction and construction method
CN106192766A (en) * 2016-08-30 2016-12-07 洛阳双瑞特种装备有限公司 A kind of girder steel pier coping portion rotary body device
CN106758867A (en) * 2017-01-18 2017-05-31 中电建路桥集团有限公司 A kind of Bridge Rotation Construction Technique control method for fully automatic
CN106758866A (en) * 2017-01-13 2017-05-31 成都启立辰智科技有限公司 Bridge top swivel structure
CN107460831A (en) * 2017-08-30 2017-12-12 黄河科技学院 A kind of Bridge Rotation Construction Technique bearing
CN108589556A (en) * 2018-05-04 2018-09-28 中铁二十三局集团有限公司 Across operation line low clearance swivel bridges construction

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105442459A (en) * 2015-12-31 2016-03-30 中铁二十局集团第一工程有限公司 Swivel system for long-span continuous beam span existing station swivel construction and construction method
CN105442459B (en) * 2015-12-31 2017-06-06 中铁二十局集团第一工程有限公司 Large-Span Continuous girder span building up station rotator construction rotor system and construction method
CN106192766A (en) * 2016-08-30 2016-12-07 洛阳双瑞特种装备有限公司 A kind of girder steel pier coping portion rotary body device
CN106758866A (en) * 2017-01-13 2017-05-31 成都启立辰智科技有限公司 Bridge top swivel structure
CN106758867A (en) * 2017-01-18 2017-05-31 中电建路桥集团有限公司 A kind of Bridge Rotation Construction Technique control method for fully automatic
CN107460831A (en) * 2017-08-30 2017-12-12 黄河科技学院 A kind of Bridge Rotation Construction Technique bearing
CN108677744A (en) * 2017-08-30 2018-10-19 黄河科技学院 Rotator construction bearing for bridge construction
CN108677744B (en) * 2017-08-30 2019-05-24 黄河科技学院 Rotator construction support for bridge construction
CN108589556A (en) * 2018-05-04 2018-09-28 中铁二十三局集团有限公司 Across operation line low clearance swivel bridges construction

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