CN101408020A - Integral lifting rack of movable mould frame and method for hanging movable mould frame thereof - Google Patents
Integral lifting rack of movable mould frame and method for hanging movable mould frame thereof Download PDFInfo
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- CN101408020A CN101408020A CNA2008101597546A CN200810159754A CN101408020A CN 101408020 A CN101408020 A CN 101408020A CN A2008101597546 A CNA2008101597546 A CN A2008101597546A CN 200810159754 A CN200810159754 A CN 200810159754A CN 101408020 A CN101408020 A CN 101408020A
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Abstract
The invention discloses an integral moving die carrier hoisting frame and a method thereof for hoisting the moving die carrier. The integral moving die carrier hoisting frame mainly comprises a shoulder pole cross beam fixed at the top end of a bridge pier column, a jack fixed above the shoulder pole cross beam by a bracket, and a hoisting beam positioned at the push rod end of the jack, wherein, the hoisting beam and the bracket are provided with through holes used for being passed through by hanger rods with external threads, correspondingly, a group of nuts of the hanger rods are respectively arranged above the hoisting beam and the bracket, and the hanger rods are used for hanging the moving die carrier. The invention also provides an installation method of moving dies, which directly utilizes the bridge pier, and has the advantages of simple structure, convenient use and small die carrier deformation.
Description
(1) technical field
The present invention relates generally to a kind of method that lifts mobile formwork, is specifically related to a kind of method that does not lift mobile formwork by means of large lifting equipment, in addition, the invention still further relates to a kind of integral lifting rack that moves moulds that is applied to this method.
(2) background technology
Mobile formwork is the construction machinery that is applied to concrete-bridge cast in situs construction in recent years gradually, and it carries template, and weight ratio is bigger, so generally, the mobile formwork majority all is that assembly unit is finished on bridge pier.Its scheme is, at first sets up falsework to design height at the bridge location place, and assembly unit moving die plate on this support is again being removed falsework in the mobile formwork assembly unit back that finishes.For the lower job site of bridge pier height, this scheme is feasible scheme, but for the higher job site of bridge pier, then need to build the too high support of setting up, still do not need the large-tonnage hanging device, also need for setting up a large amount of interim setting of support input, installation period is long, and it is many to consume manpower.
For fear of large-scale installation falsework, adopt the method for transhipment mould bases on now a lot of bridge engineering, wherein, the 200810047798.X of State Bureau application for a patent for invention shows a kind of method of transporting mould bases, and its open day is on October 29th, 2008.It discloses a kind of mobile mould frame support bracket and has hung conveyer method and device: it is to utilize the shoulder pole girder on the nose girder that removable carriage girder is separated from a bridge pier post, after the dismountable carriage girder after will separating again is transposed on the suspender on the nose girder; Suspender is transported to next bridge pier post place along nose girder with dismountable carriage girder, and removable carriage girder is transposed to shoulder pole girder on this place's nose girder, utilizes hanging of shoulder pole girder that dismountable carriage girder is installed on this bridge pier post again.Its purpose is to solve in the dismounting that does not have large lifting equipment situation bottom bracket, the problem of hanging and transporting, thereby uses the mobile formwork technology in highly bigger light-duty only column pier bridge construction, and is very suitable to the hilly ground, mountain area.Yet from description part as can be seen, in fact it be based on the fortune girder construction of steel case beam, and its movement system and steel case beam are integrative-structure, only that is to say just to carry out transporting of mould bases after steel box girder construction finishes; Especially, the transhipment mould bases needs special movement system, can increase the design cycle, can cause great deal of raw materials consumption simultaneously.
(3) summary of the invention
Therefore, the objective of the invention is to, a kind of mounting method that moves moulds is provided, it directly utilizes bridge pier, have simple in structure, easy to use, the advantage that mould bases distortion is little; For realizing this method, the present invention also provides a kind of mobile formwork integral lifting rack of this method of application simultaneously.
For realizing goal of the invention of the present invention, the present invention by the following technical solutions:
This invention mobile formwork integral lifting rack, mainly comprise shoulder pole crossbeam that is fixed in the bridge pier column top and the jack that is fixed thereon face by support, and the lifting beam that is positioned at this jack push rod end, wherein lifting beam and support are provided with and are used to pass the through hole with external screw thread suspension rod, corresponding to lifting beam with respectively be provided with the nut of one group of described suspension rod above the support, suspension rod then is used to hang mobile formwork.
Mode for fixing described shoulder pole crossbeam preferably is anchored on the pier stud by the reinforcing bar that is embedded in advance in the pier stud.
Preferably, be provided with the sleeper buttress between described shoulder pole crossbeam and bridge pier column top pinner.
Preferably, described suspension rod is formed by connecting by screw shell by multistage.
The operating principle of mobile formwork integral lifting rack involved in the present invention is, during the jack lift, the nut above the then described lifting beam must drive suspension rod and move upward, until the jack upper dead center position, at this moment, turn is positioned at nut above the described support to rack upper surface; Jack backhaul then, then this moment, the upper strata nut was no longer stressed, and lower floor's nut is stressed, is in lower dead point position to the jack push rod, and then adjusts the upper strata nut to the lifting beam upper surface; Cycling puts the mobile formwork lifting in place.The present invention has mainly used above-mentioned suspension rod, jack and support thereof, and used device is few; As mentioned above, it is also easier that it promotes operation.The present invention adopts and promotes jack as promoting power, control its lift easily, and its weight bearing power is strong, and working stability is convenient to the lifting of this heavier structure of mobile formwork.
Simultaneously, for realizing goal of the invention of the present invention, in conjunction with above-mentioned mobile formwork integral lifting rack, the present invention also provides a kind of method that lifts mobile formwork, and it may further comprise the steps:
1) girder of assembly unit mobile formwork, external mold and floor beam between two bridge pier columns are installed suspension rod;
2) lifting shoulder pole crossbeam is fixed to the bridge pier column top;
3) hoisting frame and jack are installed on described shoulder pole crossbeam, are connected suspension rod on support and lifting beam, start jack, suitably strain suspension rod, need to guarantee every suspension rod stress equalization by nut;
4) start the jack of two Dun Ding synchronously, mobile formwork is promoted 40～60cm after, the locking jack makes mobile formwork leave standstill 50～70min, observes the stability and the distortion situation of shoulder pole crossbeam;
5) start jack once more, the mobile formwork lifting is put in place;
6) bracket column under the pier side girder is installed, to be used for carrying mobile formwork main frame load;
7) the upright reinforcing pressure-sizing indented bars of living of stretch-draw bracket, with the load transfer of mobile formwork main frame to the bracket pallet;
8) remove hoisting frame and jack, install mobile formwork nose girder, preceding auxiliary supporting leg, in auxiliary supporting leg, with fixing mobile formwork.
Method involved in the present invention is based on the former scheme of selecting of direct lifting mobile formwork, and its assembly unit mobile formwork is between two bridge pier columns, and with respect to original work high above the ground, difficulty of construction is much smaller.Shoulder pole crossbeam as carrying lifting load is fixed in the bridge pier column top in addition, is convenient to adjust the balance of lifting mobile formwork, prevents the distortion of mobile formwork in the hoisting process.Correspondingly, the present invention is left standstill 50～70min after supporting surface 40～60cm is left in the mobile formwork lifting, observe the stability and the distortion situation of shoulder pole crossbeam, with distortion and the lifting stability that reduces mobile formwork to greatest extent.After the mobile formwork installation, because all component are few, it is also more convenient to remove hanging device, and can directly unload by mounted mobile formwork, very easy to use.
Preferably, embedded bar in building the process of bridge pier column is to be used for anchoring shoulder pole crossbeam.
Preferably, fixedly before the shoulder pole crossbeam, on bridge pier column end face pinner, set up the sleeper buttress, should guarantee that sleeper buttress end face on each pier two pinner is on same horizontal plane in described step.
(4) description of drawings
Specify principle of the present invention below in conjunction with Figure of description, so that those skilled in the art better understand the present invention, wherein
Fig. 1 is an embodiment of the invention mobile formwork integral lifting rack lifting view.
Fig. 2 is a hoisting frame master TV structure schematic diagram in the embodiment of the invention.
Fig. 3 is a hoisting frame left side TV structure schematic diagram in the embodiment of the invention.
Among the figure: 1, shoulder pole crossbeam, 2, hoisting frame, 3, reinforcing bar, 4, the sleeper buttress, 5, bridge pier column, 6, external mold, 7, girder, 8, the bed die crossbeam, 9, pinner, 10, screw shell, 11, suspension rod, 12, lifting beam, 13, nut, 14, push rod, 15, nut, 16, support, 17, jack.
(5) specific embodiment
With reference to Figure of description 1 to 3, present embodiment comprises shoulder pole crossbeam 1 that is fixed in bridge pier column 5 tops and the jack 17 that is fixed thereon face by support 16, and the lifting beam 12 that is positioned at these jack push rod 14 ends, wherein lifting beam and support are provided with and are used to pass the through hole with external screw thread suspension rod 11, corresponding to lifting beam with respectively be provided with the nut of one group of described suspension rod above the support, suspension rod then is used to hang mobile formwork.Load when the shoulder pole crossbeam is mainly used to carry the mobile formwork lifting, and because mobile formwork is positioned between two bridge pier columns, that is to say that its center of gravity is positioned between two bridge pier columns, its load that acts on the shoulder pole crossbeam also has a turning torque to the shoulder pole crossbeam, so above-mentioned shoulder pole crossbeam is fixing, must satisfy can this turning torque of balance, and can not cause it to topple.
Therefore, the preferred described shoulder pole crossbeam of present embodiment is anchored on the pier stud by the reinforcing bar 3 that is embedded in advance in the pier stud, and wherein reinforcing bar adopts indented bars, is convenient to dismounting, thereby, be convenient to the anchoring of shoulder pole crossbeam like this; On the other hand, reinforcing bar is embedded in bridge pier column the inside in advance, can carry must be bigger load, to satisfy the requirement of the above-mentioned turning torque of balance.
Nature, in order to prevent the pollution of steel member to bridge pier column top pinner, described shoulder pole crossbeam and 9 of bridge pier column top pinners are provided with sleeper buttress 4.Crosstie surface is smooth, and supporting capacity is strong, also is convenient to dismounting.
Because for highly higher bridge pier column, then in the process of lifting mobile formwork, used suspension rod can be long, in the actual production, the indented bars with length can not meet the demands, so, for the ease of the installation of suspension rod, its suspension rod is formed by connecting by screw shell 10 by multistage.
In fact, in the mobile formwork hoisting process, also can adopt other hanging device, such as wire rope, but because its poor stability, be not easy to adjust the stability of mobile formwork in hoisting process, and can produce additional load thus, and cause the distortion of mobile formwork.Present embodiment is the preferred embodiments of the present invention, does not constitute limiting the scope of the invention, all equivalents of its related component feature, and perhaps obviously mode of texturing all belongs to protection scope of the present invention.
According to the disclosed mobile formwork integral lifting rack of present embodiment, present embodiment provides and utilizes the method for this hoisting frame lifting mobile formwork may further comprise the steps:
1) girder 7 external molds 6 and the floor beam 8 of assembly unit mobile formwork between two bridge pier columns are installed suspension rod; Suspension rod falls the both sides that a little mainly are arranged at mobile formwork, is convenient to look for the lifting equalization point, also is convenient to the setting of pier top shoulder pole crossbeam and top hoisting frame thereof;
2) lifting shoulder pole crossbeam is fixed to the bridge pier column top;
3) hoisting frame and jack are installed on described shoulder pole crossbeam, are connected suspension rod on support and lifting beam, start jack by nut, suitably strain suspension rod, need to guarantee every suspension rod stress equalization, prevent that mobile formwork from bearing unbalanced load, causes torsional deformation;
4) start the jack of two Dun Ding synchronously, mobile formwork is promoted 40～60cm after, the locking jack makes mobile formwork leave standstill 50～70min, observes the stability and the distortion situation of shoulder pole crossbeam; As for the initial hoisting depth of above-mentioned jack and have no special requirements, key is to observe the stability and the distortion situation of shoulder pole crossbeam, so that adjust, 40～60cm then with respect to proper, also be limited in the impulse stroke of large-scale jack, if there is fortuitous event, mobile formwork can be put down and adjust; For the time of repose of mobile formwork, meet the mechanically stressing conditions of each load component under the load stable state, be convenient to observation to truth;
5) start jack once more, the mobile formwork lifting is put in place;
6) bracket column under the pier side girder is installed, to be used for carrying mobile formwork main frame load;
7) the upright reinforcing pressure-sizing indented bars of living of stretch-draw bracket, with the load transfer of mobile formwork main frame to the bracket pallet;
8) remove hoisting frame and jack, install mobile formwork nose girder, preceding auxiliary supporting leg, in auxiliary supporting leg, with fixing mobile formwork.
Embedded bar in building the process of bridge pier column, to be used for anchoring shoulder pole crossbeam, corresponding to existing pier stud shape, embedded bar preferably evenly is provided with 8 in the rectangle frame corresponding to pier stud cross section formation, and load is evenly distributed.
Fixedly before the shoulder pole crossbeam, on bridge pier column end face pinner, set up the sleeper buttress in described step, should guarantee that sleeper buttress end face on each pier two pinner on same horizontal plane, makes the shoulder pole crossbeam stressed evenly.
Claims (7)
1. mobile formwork integral lifting rack, it is characterized in that: mainly comprise shoulder pole crossbeam (1) that is fixed in bridge pier column (5) top and the jack (17) that is fixed thereon face by support (16), and the lifting beam (12) that is positioned at this jack push rod (14) end, wherein lifting beam and support are provided with and are used to pass the through hole with external screw thread suspension rod (11), corresponding to lifting beam with respectively be provided with the nut of one group of described suspension rod above the support, suspension rod then is used to hang mobile formwork.
2. mobile formwork integral lifting rack according to claim 1 is characterized in that: described shoulder pole crossbeam is anchored on the pier stud by the reinforcing bar (3) that is embedded in advance in the pier stud.
3. mobile formwork integral lifting rack according to claim 2 is characterized in that: be provided with sleeper buttress (4) between described shoulder pole crossbeam and bridge pier column top pinner (9).
4. mobile formwork integral lifting rack according to claim 1 is characterized in that: described suspension rod is formed by connecting by screw shell (10) by multistage.
5. method that lifts mobile formwork, it may further comprise the steps:
1) girder of assembly unit mobile formwork (7), external mold (6) and floor beam (8) between two bridge pier columns are installed suspension rod;
2) lifting shoulder pole crossbeam is fixed to the bridge pier column top;
3) hoisting frame and jack are installed on described shoulder pole crossbeam, are connected suspension rod on support and lifting beam, start jack, suitably strain suspension rod, need to guarantee every suspension rod stress equalization by nut;
4) start the jack of two Dun Ding synchronously, mobile formwork is promoted 40～60cm after, the locking jack makes mobile formwork leave standstill 50～70min, observes the stability and the distortion situation of shoulder pole crossbeam;
5) start jack once more, the mobile formwork lifting is put in place;
6) bracket column under the pier side girder is installed, to be used for carrying mobile formwork main frame load;
7) the upright reinforcing pressure-sizing indented bars of living of stretch-draw bracket, with the load transfer of mobile formwork main frame to the bracket pallet;
8) remove hoisting frame and jack, install mobile formwork nose girder, preceding auxiliary supporting leg, in auxiliary supporting leg, with fixing mobile formwork.
6. the method for lifting mobile formwork according to claim 5 is characterized in that: embedded bar in building the process of bridge pier column, and to be used for anchoring shoulder pole crossbeam.
7. the method for lifting mobile formwork according to claim 5 is characterized in that: fixedly before the shoulder pole crossbeam, set up the sleeper buttress in described step on bridge pier column end face pinner, should guarantee that sleeper buttress end face on each pier two pinner is on same horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101597546A CN101408020A (en) | 2008-11-13 | 2008-11-13 | Integral lifting rack of movable mould frame and method for hanging movable mould frame thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101597546A CN101408020A (en) | 2008-11-13 | 2008-11-13 | Integral lifting rack of movable mould frame and method for hanging movable mould frame thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101408020A true CN101408020A (en) | 2009-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101597546A Pending CN101408020A (en) | 2008-11-13 | 2008-11-13 | Integral lifting rack of movable mould frame and method for hanging movable mould frame thereof |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425227A (en) * | 2011-08-25 | 2012-04-25 | 中铁四局集团第二工程有限公司 | Hanging system for large-diameter sewage pipeline |
| CN102691270A (en) * | 2012-06-27 | 2012-09-26 | 中铁四局集团机电设备安装有限公司 | Efficient and quick movable mould frame |
| CN103388339A (en) * | 2012-05-07 | 2013-11-13 | 中铁十局集团第五工程有限公司 | Lowering device for jacking sleeve case |
| CN104179121A (en) * | 2014-07-28 | 2014-12-03 | 中交一公局第三工程有限公司 | Movable formwork bracket four-stage-lifting self-assembling method |
| CN106638588A (en) * | 2017-01-18 | 2017-05-10 | 中交航局第工程有限公司 | Steel pipe pile cap bottom lifting device and mounting method thereof |
| CN107858927A (en) * | 2017-11-01 | 2018-03-30 | 中铁二十局集团第六工程有限公司 | A kind of upstroke movable framework template overall pulling down hanging system |
| CN108002244A (en) * | 2017-11-30 | 2018-05-08 | 中国冶集团有限公司 | Lift-on/Lift-off System and its method for high pier stud steel bar template |
| CN108360686A (en) * | 2018-03-19 | 2018-08-03 | 浙江中南建设集团钢结构有限公司 | A kind of rack integral installation device and its construction method |
| CN108951433A (en) * | 2018-09-26 | 2018-12-07 | 清华大学 | The ancillary equipment of steel box-girder cantilever construction |
| CN110258360A (en) * | 2019-04-30 | 2019-09-20 | 中铁大桥局第七工程有限公司 | Bridge form regulation system and method |
| CN110747761A (en) * | 2019-10-21 | 2020-02-04 | 宁波市政工程建设集团股份有限公司 | Dismantling construction method and tool for temporary supporting system of small box girder type hidden cover beam of road and bridge prefabricated |
| CN112030777A (en) * | 2020-09-10 | 2020-12-04 | 保利长大工程有限公司 | Descending movable formwork support bracket crossing type transfer construction method |
| CN114319110A (en) * | 2021-12-02 | 2022-04-12 | 中交一航局第一工程有限公司 | Construction method for integrally lowering large-tonnage movable formwork |
-
2008
- 2008-11-13 CN CNA2008101597546A patent/CN101408020A/en active Pending
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425227B (en) * | 2011-08-25 | 2013-08-28 | 中铁四局集团第二工程有限公司 | Hanging system for large-diameter sewage pipeline |
| CN102425227A (en) * | 2011-08-25 | 2012-04-25 | 中铁四局集团第二工程有限公司 | Hanging system for large-diameter sewage pipeline |
| CN103388339A (en) * | 2012-05-07 | 2013-11-13 | 中铁十局集团第五工程有限公司 | Lowering device for jacking sleeve case |
| CN102691270A (en) * | 2012-06-27 | 2012-09-26 | 中铁四局集团机电设备安装有限公司 | Efficient and quick movable mould frame |
| CN104179121A (en) * | 2014-07-28 | 2014-12-03 | 中交一公局第三工程有限公司 | Movable formwork bracket four-stage-lifting self-assembling method |
| CN104179121B (en) * | 2014-07-28 | 2016-01-20 | 中交一公局第三工程有限公司 | A kind of mobile mould frame support bracket four promotes from assembling method |
| CN106638588B (en) * | 2017-01-18 | 2023-10-13 | 中交一航局第一工程有限公司 | Steel pipe pile cap bottom hanging device and installation method thereof |
| CN106638588A (en) * | 2017-01-18 | 2017-05-10 | 中交航局第工程有限公司 | Steel pipe pile cap bottom lifting device and mounting method thereof |
| CN107858927A (en) * | 2017-11-01 | 2018-03-30 | 中铁二十局集团第六工程有限公司 | A kind of upstroke movable framework template overall pulling down hanging system |
| CN107858927B (en) * | 2017-11-01 | 2023-11-03 | 中铁二十局集团第六工程有限公司 | Hanging system for integrally removing up-going movable formwork template |
| CN108002244A (en) * | 2017-11-30 | 2018-05-08 | 中国冶集团有限公司 | Lift-on/Lift-off System and its method for high pier stud steel bar template |
| CN108360686A (en) * | 2018-03-19 | 2018-08-03 | 浙江中南建设集团钢结构有限公司 | A kind of rack integral installation device and its construction method |
| CN108951433A (en) * | 2018-09-26 | 2018-12-07 | 清华大学 | The ancillary equipment of steel box-girder cantilever construction |
| CN108951433B (en) * | 2018-09-26 | 2024-08-30 | 清华大学 | Auxiliary equipment for steel box girder suspension splicing construction |
| CN110258360A (en) * | 2019-04-30 | 2019-09-20 | 中铁大桥局第七工程有限公司 | Bridge form regulation system and method |
| CN110747761B (en) * | 2019-10-21 | 2021-03-23 | 宁波市政工程建设集团股份有限公司 | Dismantling construction method for temporary supporting system of small box girder type hidden cover beam prefabricated on road and bridge |
| CN110747761A (en) * | 2019-10-21 | 2020-02-04 | 宁波市政工程建设集团股份有限公司 | Dismantling construction method and tool for temporary supporting system of small box girder type hidden cover beam of road and bridge prefabricated |
| CN112030777A (en) * | 2020-09-10 | 2020-12-04 | 保利长大工程有限公司 | Descending movable formwork support bracket crossing type transfer construction method |
| CN112030777B (en) * | 2020-09-10 | 2021-07-20 | 保利长大工程有限公司 | Descending movable formwork support bracket crossing type transfer construction method |
| CN114319110A (en) * | 2021-12-02 | 2022-04-12 | 中交一航局第一工程有限公司 | Construction method for integrally lowering large-tonnage movable formwork |
| CN114319110B (en) * | 2021-12-02 | 2023-10-10 | 中交一航局第一工程有限公司 | Construction method for integrally lowering large-tonnage movable formwork |
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Open date: 20090415 |