CN212335771U - Descending movable formwork demolishs auxiliary device based on it is convenient - Google Patents
Descending movable formwork demolishs auxiliary device based on it is convenient Download PDFInfo
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- CN212335771U CN212335771U CN202020390039.XU CN202020390039U CN212335771U CN 212335771 U CN212335771 U CN 212335771U CN 202020390039 U CN202020390039 U CN 202020390039U CN 212335771 U CN212335771 U CN 212335771U
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- 238000009415 formwork Methods 0.000 title claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 21
- 239000010959 steel Substances 0.000 claims abstract description 21
- 239000011148 porous material Substances 0.000 claims abstract description 8
- 238000010276 construction Methods 0.000 abstract description 20
- 238000000034 method Methods 0.000 abstract description 12
- 238000009434 installation Methods 0.000 abstract description 2
- 239000000969 carrier Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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Abstract
The utility model discloses a descending moving die carrier demolition assisting device based on convenience, which comprises a trolley, a transverse moving track, a transverse moving oil cylinder, a longitudinal moving orifice plate and a transverse moving counter-force beam, wherein the longitudinal moving orifice plate is provided with a plurality of connecting holes, the trolley is slidably mounted on the transverse moving track, and the transverse moving oil cylinder and the longitudinal moving oil cylinder are mounted on the trolley; a piston rod of the transverse moving oil cylinder is connected with a transverse moving sliding shoe, the transverse moving sliding shoe is connected with one end of a transverse moving steel strand, the other end of the transverse moving steel strand is connected with the transverse moving counter-force beam, and the transverse moving oil cylinder pulls the transverse moving steel strand so that the trolley transversely slides along the transverse moving track; the piston rod of the longitudinal moving oil cylinder is connected with a longitudinal moving sliding shoe, and the longitudinal moving sliding shoe is connected with the longitudinal moving pore plate through a pin shaft. The device has the advantages of scientific and compact structure, convenient construction, installation and use, convenient lowering and dismantling of the movable formwork, improved utilization efficiency of the platform and the equipment, and reduced influence on other processes.
Description
Technical Field
The utility model discloses bridge construction technical field specifically is a downlink moving die carrier demolishs auxiliary device based on it is convenient.
Background
The cast-in-place box girder moving formwork construction method has the characteristics of short construction period, good beam section integrity and the like, and is widely applied to bridge type in-situ construction of simply supported beams, continuous beams and the like. However, the movable formwork is still difficult to remove due to the large size of the members and the limitation of construction sites, construction equipment and the like.
In more than ten years, the domestic movable formwork is mainly dismantled by the following five methods: 1. the movable mould frame is lowered integrally, and then the movable mould frame is dismantled and loaded onto a ship by using a floating crane and the like; 2. firstly, dismantling guide beams and the like, and then using a large-scale floating crane to hoist the main beams to the bridge floor in groups for dismantling; 3. firstly, removing the external mold system, and then removing and lowering the main beam in sections; 4. moving forwards/backwards longitudinally, and dismantling the main components section by section in the air; 5. and the whole body is returned to the shore for dismantling. The methods 1 and 2 need waterway transportation conditions or high clearance conditions, the methods 3 and 4 have the defects of long period and high safety risk, and the method 5 is suitable for single formwork construction, so that the period is long and the influence factors are many.
Aiming at the engineering that the area near the closure part of the cast-in-place beam is a shoal area, ships such as a floating crane and the like can not enter when the movable formwork method is adopted for construction, the clearance between the bottom of the cast-in-place beam at the closure part and the trestle surface is too small, if the movable formwork is used for downward moving and dismantling, the problems that the 90T crawler crane on the use site of a main component is difficult to dismantle, the dismantling period is long, the linear construction period of the subsequent cast-in-place beam can be influenced and the; and a wider platform is required to be erected, and the platform is high in erection and disassembly cost.
Disclosure of Invention
In order to overcome the shortcoming that prior art mentioned, the utility model provides a down movable mould frame demolishs auxiliary device based on it is convenient, the device with push away the theory of construction used the removal in-process at movable mould frame for the large-scale main component of die carrier can push away to indulge and move and the sideslip of grouping, carries out the convenience to it and demolishs, improves platform, equipment utilization efficiency, reduces the influence to other processes.
The utility model provides a technical scheme that its technical problem adopted is: a downlink moving die carrier dismantling auxiliary device based on convenience comprises a trolley, a transverse moving track, a transverse moving oil cylinder, a longitudinal moving orifice plate and a transverse moving counter-force beam, wherein a plurality of connecting holes are formed in the longitudinal moving orifice plate, the trolley is slidably mounted on the transverse moving track, and the transverse moving oil cylinder and the longitudinal moving oil cylinder are mounted on the trolley; a piston rod of the transverse moving oil cylinder is connected with a transverse moving sliding shoe, the transverse moving sliding shoe is connected with one end of a transverse moving steel strand, the other end of the transverse moving steel strand is connected with the transverse moving counter-force beam, and the transverse moving oil cylinder pulls the transverse moving steel strand so that the trolley transversely slides along the transverse moving track; the piston rod of the longitudinal moving oil cylinder is connected with a longitudinal moving sliding shoe, and the longitudinal moving sliding shoe is connected with the longitudinal moving pore plate through a pin shaft. The device can move the large-scale main component of the movable formwork on a narrow platform out of the bottom of the cast-in-place box girder or the adjacent formwork in a mode of pushing, longitudinally moving and grouping and transversely moving through a pushing, longitudinally moving system consisting of longitudinally moving oil cylinders on the trolley and a transversely moving system consisting of transversely moving oil cylinders.
Furthermore, a support pad which is easy to level is arranged at the bottom of the transverse moving track.
Furthermore, the other end of the transverse moving steel strand is fixed on the transverse moving counter-force beam through an anchorage device.
Furthermore, the transverse moving track and the transverse moving counter-force beam are made of 25# I-steel simply and easily, and materials are easy to obtain.
The utility model has the advantages that: the device has the advantages of scientific and compact structure, convenient material taking, construction, installation and use, convenient lowering and dismantling of the movable die carrier, improved utilization efficiency of the platform and the equipment, and reduced influence on other processes.
Drawings
FIG. 1 is a front view of the structure of the present invention;
fig. 2 is a top view of the structure of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1 and 2, a convenient and fast-based downlink moving formwork dismantling auxiliary device comprises a trolley 1, a transverse moving rail 2, a longitudinal moving oil cylinder 3, a longitudinal moving sliding shoe 4, a longitudinal moving pore plate 5, a transverse moving oil cylinder 6, a transverse moving sliding shoe 7, a steel strand 8, a transverse moving counter-force beam 9 and an anchor device 10, wherein a leveling support pad is arranged at the bottom of the transverse moving rail 2, a plurality of connecting holes are formed in the longitudinal moving pore plate 5, the trolley 1 is slidably mounted on the transverse moving rail 2, and the transverse moving oil cylinder 6 and the longitudinal moving oil cylinder 3 are mounted on the trolley 1; a piston rod of the traversing oil cylinder 6 is connected with a traversing sliding shoe 7, the traversing sliding shoe 7 is connected with one end of a traversing steel strand 8, the other end of the traversing steel strand 8 is fixed on a traversing counter-force beam 9 through an anchorage device 10, and the traversing oil cylinder 6 pulls the traversing steel strand 8, so that the trolley 1 transversely slides along the traversing track 2; the piston rod of the longitudinal moving oil cylinder 3 is connected with a longitudinal moving sliding shoe 4, and the longitudinal moving sliding shoe 4 is connected with the longitudinal moving pore plate 5 through a pin shaft. The device can move the main member of the die carrier out of a cast-in-place box beam or the bottom of an adjacent die carrier in a mode of pushing, longitudinally moving and grouping and transversely moving through a pushing, longitudinally moving system consisting of longitudinally moving oil cylinders 3 on the trolley 1 and a transversely moving system consisting of transversely moving oil cylinders 6. The transverse moving track and the transverse moving reaction beam are made of 25# I-steel, the diameter of a single transverse moving steel strand is phi 15.6, and the allowable stress is 1860 mpa.
The working principle of the device is as follows:
the method comprises the following steps: the trolley 1 and the transverse moving track 2 are arranged on the platform according to a drawing. Two transverse tracks 2 on two sides are required to be symmetrically arranged right above the Bailey beam. The traversing track 2 and the temporary support pad are required to be lifted at a low position by taking the highest point of the platform as a reference, the deviation is controlled within a range of +/-5 mm, stainless steel plate strips are required to be welded on the surface, and the surface is polished and coated with lubricating grease smoothly. The transverse moving track 2 is required to be smooth, and the track end counterforce beam needs to be welded firmly. After the track arrangement is in place, the trolley 1 is mounted to test transverse movement, and the track size, the performance of a transverse movement device and the like are checked.
Step two: after the whole die carrier is put down in place, firstly removing the outer die system, the girder top I-steel and the like; then, the trolley 1 on the side of the trestle transversely moves for 0.3m to open the die, and the whole bottom die truss group is removed.
Step four: then, a longitudinal moving oil cylinder 3 on the trolley 1 is used for connecting six sections of main beams on one side with a longitudinal moving orifice plate 5 to push and longitudinally move, and after the front three sections are in enough lateral moving space positions, a third joint is removed; and repeatedly pulling and dragging the transverse moving steel strands 8 anchored at the end parts of the transverse moving tracks 2 by using a transverse moving oil cylinder 6 on the trolley 1, transversely moving the front three main beams out of the bottom of the cast-in-place beam or the adjacent formwork, finally dismantling the main beams by using a gantry crane or a crawler crane, and moving and dismantling the other main beams by adopting a similar method.
Step five: the movable mould frame members are detached for strictly classified storage and transportation.
The application of the device is as follows: the cast-in-place box girder of the open sea super bridge is divided into a left beam and a right beam, the length of the cast-in-place box girder is 3.55km, a single beam is provided with 71 holes, four holes are connected in a combined mode, the left beam and the right beam are combined into 36-connected 142 holes, and construction is carried out by adopting a movable formwork method. And 4 sets of movable mould frames are put in total, and construction is carried out from two sides to the middle respectively. The 4 sets of movable frameworks are closed in the middle and are gradually dismantled. The area near the closure position of the cast-in-place beam is a shoal area, and ships such as a floating crane and the like can not enter the shoal area. The clearance between the bottom of the closure section cast-in-place beam and the trestle surface is less than 15m, and the construction period of the adjacent movable formwork is only 2-3 holes different. If the conventional method is adopted for lowering and dismantling the movable formwork, the problems that a 90T crawler crane on the use site of large-scale main components such as formwork girders weighing about 30 tons and one section is difficult to dismantle, the dismantling period is long, the linear construction period of a subsequent cast-in-place beam can be influenced and the like exist; and a wider platform is required to be erected, and the platform is high in erection and disassembly cost. And the adjacent construction intervals of the second to the fourth sets of the die carriers are all smaller than 3 holes, the coverage range of a single set of the die carriers reaches 2.5 holes, and if the conventional method is adopted for construction, the straight construction period is influenced by considering the die carrier dismantling period and is influenced by at least 15 days. How to take effective measures to reduce or avoid the influence on the straight-line construction period. How to adopt the difficult problem that the main component was demolishd, transported in effectual mode. By using the device, the large-scale main component of the die carrier is moved out of the bottom of the cast-in-place box girder or the adjacent die carrier in a pushing longitudinal moving and grouping transverse moving mode, so that the problems are effectively solved.
The above description is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereby, and all the simple equivalent changes and modifications made in the claims and the description of the new invention are also within the scope of the present invention.
Claims (4)
1. A downlink moving die carrier dismantling auxiliary device based on convenience is characterized by comprising a trolley, a transverse moving track, a transverse moving oil cylinder, a longitudinal moving pore plate and a transverse moving counter-force beam, wherein a plurality of connecting holes are formed in the longitudinal moving pore plate, the trolley is slidably mounted on the transverse moving track, and the transverse moving oil cylinder and the longitudinal moving oil cylinder are mounted on the trolley; a piston rod of the transverse moving oil cylinder is connected with a transverse moving sliding shoe, the transverse moving sliding shoe is connected with one end of a transverse moving steel strand, the other end of the transverse moving steel strand is connected with the transverse moving counter-force beam, and the transverse moving oil cylinder pulls the transverse moving steel strand so that the trolley transversely slides along the transverse moving track; a piston rod of the longitudinal moving oil cylinder is connected with a longitudinal moving sliding shoe, and the longitudinal moving sliding shoe is connected with the longitudinal moving pore plate through a bolt.
2. The portable descending mobile formwork dismantling assist device as claimed in claim 1, wherein a support pad is provided at the bottom of the traverse rail.
3. The portable descending mobile formwork dismantling assisting device as claimed in claim 1, wherein the other end of the traverse steel strand is fixed to the traverse reaction beam through an anchor.
4. The portable descending mobile formwork dismantling assisting device as claimed in claim 1, wherein the traverse rail and the traverse reaction beam are made of 25# I-steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020390039.XU CN212335771U (en) | 2020-03-24 | 2020-03-24 | Descending movable formwork demolishs auxiliary device based on it is convenient |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020390039.XU CN212335771U (en) | 2020-03-24 | 2020-03-24 | Descending movable formwork demolishs auxiliary device based on it is convenient |
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| CN212335771U true CN212335771U (en) | 2021-01-12 |
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| CN202020390039.XU Active CN212335771U (en) | 2020-03-24 | 2020-03-24 | Descending movable formwork demolishs auxiliary device based on it is convenient |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114232509A (en) * | 2021-12-20 | 2022-03-25 | 四川公路桥梁建设集团有限公司 | Transportation system and transportation method for bridge sections |
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2020
- 2020-03-24 CN CN202020390039.XU patent/CN212335771U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114232509A (en) * | 2021-12-20 | 2022-03-25 | 四川公路桥梁建设集团有限公司 | Transportation system and transportation method for bridge sections |
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