CN206359906U - A kind of floating of overall pulling down old concrete arch bridge removes platform - Google Patents
A kind of floating of overall pulling down old concrete arch bridge removes platform Download PDFInfo
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- CN206359906U CN206359906U CN201621313351.9U CN201621313351U CN206359906U CN 206359906 U CN206359906 U CN 206359906U CN 201621313351 U CN201621313351 U CN 201621313351U CN 206359906 U CN206359906 U CN 206359906U
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- floating
- truss
- platform
- arch bridge
- pulling down
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Abstract
The floating that the utility model is specifically related to a kind of overall pulling down old concrete arch bridge removes platform, it is characterised in that：The floating is removed platform and is made up of buoyancy tank and truss, and the buoyancy tank supports the truss, and the buoyancy tank sets drinking water device；Jack is fixedly connected with the truss.The utility model has the advantage of：Platform is removed using the floating and is substantially shorter the dismounting time, construction speed is accelerated, saves labour cost；Reduce security risk；Dredging expense can be saved；Pollution to river course is minimum, and building waste will not be retained in river course.
Description
Technical field
The utility model is related to bridge machine engineering field, and in particular to a kind of floating of overall pulling down old concrete arch bridge
Remove platform.
Background technology
Upgrading and flood control requirement with the country to navigation channel, the bridge that many 70, the eighties build is required to remove, and
Built again according to newest navigation channel, flood control requirement, current most domestic old bridge using cofferdam by the dismounting that collapses, in time
Because the duration is longer larger on navigation influence；Spatially because of work high above the ground, there is larger potential safety hazard；Due to the bridge construction time compared with
Early, data management at that time does not cause properly the construction data of many bridges to lack, it is impossible to which the security in demolishing process is entered
Row quantitative analysis, it is dangerous very big；Building waste is retained in former river course simultaneously, and large effect is caused to environment.
The content of the invention
There is provided a kind of the floating of overall pulling down old concrete arch bridge according in place of above-mentioned the deficiencies in the prior art for the utility model
Formula removes platform, and floating dismounting platform shores arch bridge dismounting section by the truss being arranged on buoyancy tank and movement is so as to complete arch
Bridge removes moving for section.
The utility model purpose is realized and completed by following technical scheme：
A kind of floating of overall pulling down old concrete arch bridge removes platform, it is characterised in that the floating removes platform by floating
Case and truss composition, the buoyancy tank support the truss, and the buoyancy tank sets drinking water device；Thousand are fixedly connected with the truss
Jin top.
The jack is located above the truss, i.e., between the truss and arch.
The jack is located at below the truss, i.e., between the truss and the buoyancy tank.
The truss upper surface is vertically laid with some shaped steel, the curvilinear surface that each shaped steel upper end is formed with
Arch bottom surface is adapted.
The upper end of the shaped steel is provided with rubber cushion blocks.
Include jack described at least four on the truss.
The jack is distributed in four corners of the truss.
The floating, which removes platform, includes multiple buoyancy tanks.
The floating removes platform depth-width ratio and is more than 1：2.
The utility model has the advantage of：Platform is removed using the floating and is substantially shorter the dismounting time, construction is accelerated
Progress, saves labour cost；Water high and medium operation is converted into land Ground Operation by the platform, reduces security risk；It can save
Dredging expense；Pollution to river course is minimum, and building waste will not be retained in river course.
Brief description of the drawings
Fig. 1 is floating dismounting platform construction schematic diagram in the utility model embodiment 1.
Fig. 2 is floating dismounting platform elevation in place in the utility model embodiment 1.
Fig. 3 is floating dismounting platform plane figure in the utility model embodiment 1.
Fig. 4 is floating dismounting platform elevation in place in the utility model embodiment 2.
Fig. 5 is floating dismounting platform construction schematic diagram in the utility model embodiment 2.
Embodiment
The utility model feature and other correlated characteristics are described in further detail by embodiment below in conjunction with accompanying drawing,
In order to the understanding of technical staff of the same trade：
As Figure 1-5, mark 1-6 is respectively in figure：Buoyancy tank 1, truss 2, jack 3, floating remove platform 4, arch bridge
5th, shaped steel 6.
Embodiment 1：As Figure 1-3, the present embodiment is specifically related to a kind of floating of overall pulling down old concrete arch bridge and torn open
Except platform, the projects to Multi-arch bridge 5 can be rapidly completed by setting the floating to remove platform 4 on the water, the floating is torn open
Except platform 4 is made up of the buoyancy tank platform of packaged type and the truss 2 being arranged on the buoyancy tank platform.
As Figure 1-3, buoyancy tank platform is specifically to be made up of the mutually splicing of multiple buoyancy tanks 1, buoyancy tank 1 in buoyancy tank platform
Composing quantity according to the girder span length of arch bridge 5 determine, wherein, be respectively provided with drinking water device in each buoyancy tank 1（That is water storage cabin）, can be
Absorb water water filling in device.By midas Modeling Calculations, the buoyancy tank platform in the present embodiment needs the buoyancy tank using 3 300 tons altogether
1, the nacelle long 20m, wide 10m, high 2m of each buoyancy tank 1；Due to draft 0.5m when buoyancy tank 1 is unloaded, job platform is higher by the water surface
1.5m, will respectively be added water in the drinking water device in three buoyancy tanks 1, and according to same day river water level height, comprehensive safety factor is set
Maximum injecting quantity is 160t, and now draft is 1.3m, meets construction requirement.
As Figure 1-3, truss 2 is arranged on foregoing buoyancy tank platform, truss 2 height is according to water level and is removed
The bottom surface elevation of the arch of arch bridge 5 is determined；Multiple hydraulic jacks 3 are provided between buoyancy tank platform and the bottom of truss 2,
Each jack 3 is evenly distributed on the whole bottom surface of truss 2, and to be carried out to truss 2, partial top rising tune is whole or overall lifting.It is very heavy
The quantity on top 3 at least should be four, be distributed in four corner locations of each truss 2, so as to the stable branch of the formation of truss 2
Support.In addition, having many shaped steel 6 on the upper surface of truss 2 so as to form the curvilinear surface of truss 2, the curvilinear surface can
Arch lower surface with arch bridge 1 is mutually fitted, to realize that laminating each other is contacted.In the present embodiment, the institute on each buoyancy tank 1
The truss 2 of installation amounts to 14 φ 219 × 6mm seamless steel pipes by 2 rows and constituted；Horizontal ship is to spacing between steel pipe and steel pipe
6m, is welded with bridging 20a channel-section steels, and vertical ship is that 3.26m is welded with connecting rod 20a channel-section steels to spacing, horizontal ship to
It is welded at the top of vertical rod with HW300 × 300 × 10 of I-steel 5 × 15mm；After the installation of truss 2 on each buoyancy tank 1,
Truss 2 is checked, it is ensured that being connected firmly between each rod member, weld seam is full；In the installation process of truss 2, due to floating
Truss support point is more on case 1, it is difficult to uniform force, is padded at truss 2 with the contact point of buoyancy tank 1 with steel plate, reduces buoyancy tank 1
Steel plate deformed, improves the bearing capacity on the deck of buoyancy tank 1.
Furthermore, it is necessary to which explanation, the top of shaped steel 6 that the top of truss 2 directly contacts the arch lower surface of arch bridge 5 is provided with
Rubber cushion blocks thick 3cm, with ensure truss 2 with the bottom surface of dismounting arch contact more abundant.
As Figure 1-3, remove platform using the floating in the present embodiment and overall pulling down is carried out to old concrete arch bridge
Method comprises the following steps：
（1）Preparation of construction：Buoyancy tank 1 is parked on existing revetment side at the scene, and corresponding material is purchased according to the design of truss 2
Material, wherein checking buoyancy tank 1, possesses complete ship inspection data, the current data in navigation channel, and in related managements such as maritime sectors
Unit is put on record；Steel pipe and shaped steel should meet corresponding code requirement, and wlding uses CHS502 welding rods.
（2）Build floating and remove platform 4：Some buoyancy tanks 1 are carried out into mutually splicing to fix, make entirety can
Portable buoyancy tank platform, and water filling is carried out to the drinking water device in each buoyancy tank 1, buoyancy tank 1 is reached the draft specified；It
Afterwards, jack 3 and truss 2 are installed successively from bottom to top on each buoyancy tank 1, and set some shaped steel 6 to make its shape on truss 2
Into the curvilinear surface for adapting to the arch of arch bridge 5 bottom.In order to ensure floating removes the resistance to overturning of platform 4, platform depth-width ratio should be made
More than 1：2.
（3）Floating is removed platform 4 and translated and in place：The floating for building completion is removed into platform 4 using towboat and is moved to arch
It is in place below each arch of bridge 5, the Draw off valve that buoyancy tank 1 absorbs water device is opened afterwards, the water in buoyancy tank 1 is discharged, buoyancy tank 1 by
Gradually float, when each shaped steel 6 on truss 2 contacts simultaneously stress with arch bottom surface, stop draining；
Found if checking, indivedual shaped steel 6 of the upper end of truss 2 and arch bottom surface exist it is local not in contact with place, then by this not
The jack 3 of the bottom of contact position truss 2, the height of local elevation truss 2 at this, enables the curvilinear surface on the top of truss 2 to accord with
The linear of the bottom surface of arch is removed in conjunction, it is ensured that truss 2 is uniformly contacted and stress with the bottom surface of removed arch；
If after the internal drainage of buoyancy tank 1 is finished, each shaped steel 6 of the upper end of truss 2 is not in contact with the arch bottom of arch bridge 5 yet, now,
Then opening all jack 3 makes its overall lifting truss 2 so that each shaped steel 6 of the upper end of truss 2 can with arch bridge 5 arch bottom phase
Completely attach to.
（4）Complete the removal of multispan arch on arch bridge 5：By step（3）Described in method, by each floating remove platform
4 move to respectively arch bridge 5 each across arch lower section it is in place waterborne floating side by side, make each truss 2 respectively with the arch at its position
The bottom surface contact in portion and uniform stressed, it is last while mobile each floating dismounting platform 4 completes to remove while multispan arch on arch bridge 5
Move.
Embodiment 2：As shown in Figure 4,5, the present embodiment is specifically related to a kind of floating of overall pulling down old concrete arch bridge and torn open
Except platform, the difference that the floating removes platform and floating dismounting platform in embodiment 1 is：The bottom of truss 2 is directly solid
Surely it is arranged on buoyancy tank platform, while being then changed to set multiple jack 3 on the top of truss 2.
As shown in Figure 4,5, the floating in the present embodiment removes platform 4 by the buoyancy tank platform of packaged type and is arranged on this
Truss 2 on buoyancy tank platform is constituted.Buoyancy tank platform is made up of the mutually splicing of multiple buoyancy tanks 1, concrete structure and phase in embodiment 1
Together.Truss 2 is directly arranged on each buoyancy tank 1, and several hydraulic jacks 3, thousand are uniformly laid with the upper surface of truss 2
The quantity on jin top 3 is at least four, and is located at four corner locations of each truss 2 respectively, is located at it so as to stable support
The arch of top.In the present embodiment, 10-20 jack 3 is evenly arranged in the upper surface of truss 2, so that energy on truss 2
Enough there is the suitable strong point of quantity to be supported the arch of arch bridge 5.
As shown in Figure 4,5, remove platform using the floating in the present embodiment and overall pulling down is carried out to old concrete arch bridge
Method comprises the following steps：
（1）Preparation of construction：Buoyancy tank 1 is parked on existing revetment side at the scene, and corresponding material is purchased according to the design of truss 2
Material；
（2）Build floating and remove platform 4：Some buoyancy tanks 1 are carried out into mutually splicing to fix, make entirety can
Portable buoyancy tank platform, and water filling is carried out to the drinking water device in each buoyancy tank 1, buoyancy tank 1 is reached the draft specified；It
Afterwards, truss 2 is installed on each buoyancy tank 1, and some jack 3 are evenly arranged in the upper surface of truss 2, each jack 3 is in
Minimum stroke；
（3）Floating is removed platform 4 and translated and in place：The floating for building completion is removed into platform 4 using towboat and is moved to arch
It is in place below each arch of bridge 5, the Draw off valve that buoyancy tank 1 absorbs water device is opened afterwards, the water in buoyancy tank 1 is discharged, buoyancy tank 1 by
Gradually float, when arch bottom surface of the upper end of truss 2 close to arch bridge 5, stop draining；Each the thousand of the top of truss 2 are driven afterwards
Jin top 3 rises, and the climb of each jack 3 is different, and splice grafting is affixed when detecting the upper end of jack 3 with arch bottom surface
Stop rising when touching, now, complete the curvilinear surface that the formation of each jack 3 after rising can be mutually fitted with arch bottom surface, make
Truss 2 is in close contact and stress with the arch of arch bridge 5 bottom；
（4）Complete the removal of multispan arch on arch bridge 5：By step（3）Described in method, by each floating remove platform
4 move to respectively arch bridge 5 each across arch lower section it is in place waterborne floating side by side, make each truss 2 respectively with the arch at its position
The bottom surface contact in portion and uniform stressed, it is last while mobile each floating dismounting platform 4 completes to remove while multispan arch on arch bridge 5
Move.
Claims (9)
1. a kind of floating of overall pulling down old concrete arch bridge removes platform, it is characterised in that the floating removes platform by buoyancy tank
With truss composition, the buoyancy tank supports the truss, and the buoyancy tank sets drinking water device；It is fixedly connected with the truss very heavy
Top.
2. a kind of floating of overall pulling down old concrete arch bridge removes platform according to claim 1, it is characterised in that described
Jack is located above the truss, i.e., between the truss and arch.
3. a kind of floating of overall pulling down old concrete arch bridge removes platform according to claim 1, it is characterised in that described
Jack is located at below the truss, i.e., between the truss and the buoyancy tank.
4. a kind of floating of overall pulling down old concrete arch bridge removes platform according to claim 3, it is characterised in that described
Truss upper surface is vertically laid with some shaped steel, and the curvilinear surface that each shaped steel upper end is formed mutually is fitted with arch bottom surface
Match somebody with somebody.
5. a kind of floating of overall pulling down old concrete arch bridge removes platform according to claim 4, it is characterised in that described
The upper end of shaped steel is provided with rubber cushion blocks.
6. a kind of floating of overall pulling down old concrete arch bridge removes platform according to claim 1, it is characterised in that described
Include jack described at least four on truss.
7. a kind of floating of overall pulling down old concrete arch bridge removes platform according to claim 6, it is characterised in that described
Jack is distributed in four corners of the truss.
8. a kind of floating of overall pulling down old concrete arch bridge according to claim 1 removes platform, it is characterised in that institute
Stating floating dismounting platform includes multiple buoyancy tanks.
9. a kind of floating of overall pulling down old concrete arch bridge according to claim 8 removes platform, it is characterised in that institute
State floating and remove platform depth-width ratio more than 1：2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621313351.9U CN206359906U (en) | 2016-12-02 | 2016-12-02 | A kind of floating of overall pulling down old concrete arch bridge removes platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621313351.9U CN206359906U (en) | 2016-12-02 | 2016-12-02 | A kind of floating of overall pulling down old concrete arch bridge removes platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206359906U true CN206359906U (en) | 2017-07-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621313351.9U Active CN206359906U (en) | 2016-12-02 | 2016-12-02 | A kind of floating of overall pulling down old concrete arch bridge removes platform |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108505458A (en) * | 2018-03-23 | 2018-09-07 | 湖南省交通规划勘察设计院有限公司 | A kind of suspension bridge removes the monitoring method of overall process |
| CN111778884A (en) * | 2020-07-16 | 2020-10-16 | 保利长大工程有限公司 | Construction method for dismantling over-water suspended arch bridge |
| CN111778883A (en) * | 2020-07-16 | 2020-10-16 | 保利长大工程有限公司 | Non-unbalance-load quick dismantling method for multi-span concrete rigid frame arch bridge |
-
2016
- 2016-12-02 CN CN201621313351.9U patent/CN206359906U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108505458A (en) * | 2018-03-23 | 2018-09-07 | 湖南省交通规划勘察设计院有限公司 | A kind of suspension bridge removes the monitoring method of overall process |
| CN111778884A (en) * | 2020-07-16 | 2020-10-16 | 保利长大工程有限公司 | Construction method for dismantling over-water suspended arch bridge |
| CN111778883A (en) * | 2020-07-16 | 2020-10-16 | 保利长大工程有限公司 | Non-unbalance-load quick dismantling method for multi-span concrete rigid frame arch bridge |
| CN111778883B (en) * | 2020-07-16 | 2021-05-14 | 保利长大工程有限公司 | Non-unbalance-load quick dismantling method for multi-span concrete rigid frame arch bridge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 200436, 9 floor, building 2, Times Square, central Times Square, Lane 299, Shanghai Road, Zhabei District Co-patentee after: China Railway Shanghai Engineering Bureau Group Municipal Environmental Protection Engineering Co.,Ltd. Patentee after: SHANGHAI CIVIL ENGINEERING Co.,Ltd. OF CREC Address before: 200436, 9 floor, building 2, Times Square, central Times Square, Lane 299, Shanghai Road, Zhabei District Co-patentee before: NO 2 ENGINEERING Co.,Ltd. SHANGHAI CIVIL ENGINEERING CO LTD OF CREC Patentee before: SHANGHAI CIVIL ENGINEERING Co.,Ltd. OF CREC |
|
| CP01 | Change in the name or title of a patent holder |