CN104712143A - Reversed mould construction method for circular reinforced concrete chimney wall - Google Patents
Reversed mould construction method for circular reinforced concrete chimney wall Download PDFInfo
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- CN104712143A CN104712143A CN201510108991.XA CN201510108991A CN104712143A CN 104712143 A CN104712143 A CN 104712143A CN 201510108991 A CN201510108991 A CN 201510108991A CN 104712143 A CN104712143 A CN 104712143A
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Abstract
The invention relates to a reversed mould construction method for the circular reinforced concrete chimney wall. The method comprises the steps that a pre-embedded part is embedded; a scaffold is erected at the central position of the chimney wall, steel ring raw materials for connecting primary trusses and a secondary radiation beam are transported into the chimney, and steel rings are assembled on the ground; a central drum ring is installed; a cross-core jack is installed on a climbing rod, the cross-core jack is installed in a released state, and the cross-core jack is adjusted to the corresponding elevation; the primary trusses, the secondary radiation beam and forward-spin connecting rods of the primary trusses are installed, the assembled steel rings are lifted to the bottom of the secondary radiation beam, and the junctions of the secondary radiation beam and downward-spin rods of the primary trusses are connected through a stud and a clamp plate; a foot plank of an operation platform is paved; the normal operation of a chimney cylinder body is conducted. According to the reversed mould construction method for the circular reinforced concrete chimney wall, two formworks are adopted, and a layer of template is omitted compared with a normal condition; the labor intensity of the construction of a hydraulic reversed mould device is moderate, the lifting work of a railway mould is omitted, the labor intensity is reduced, the construction progress is obviously quickened through the dynamic and continuous operation, and the construction period is shortened obviously.
Description
Technical field
The present invention relates to architecture construction technical field, especially relate to a kind of circular steel reinforced concrete chimney wall reverse mould construction method.
Background technology
The construction method of circular steel reinforced concrete chimney wall generally has reverse mould construction method and slip-form construction method, chimney wall wherein after slding form operation has smooth in appearance, without connecing stubble, can not do surface-treated advantage, but the high defect of its construction equipment cost is also quite obvious; By contrast, although the chimney after reverse mould construction exists comparatively significantly seam, the method has the low advantage of construction cost, therefore, in less at diameter, highly not too high chimney construction, giving one's full attention under seam construction prerequisite, adopt reverse mould construction method as far as possible.
In prior art, the lifting arm for bearing platform Main Load in chimney reverse mould construction will be fixed in chimney wall by Concrete Filled, thus add chimney cost.
Summary of the invention
The object of the invention is to overcome the shortcoming existed in prior art, a kind of circular reinforced concrete chimney reverse mould construction method is provided, the method efficiently solves the difficult problem that lifting arm is recycled, the technical scheme adopted is: a kind of circular steel reinforced concrete chimney wall reverse mould construction method, and the method step is:
1) in chimney raft end face stack shell drop shadow spread, bury built-in fitting underground according to design, conventional construction chimney wall first segment reinforcing bar, template, install and to climb bar, described in the bar overcoat that climbs to climb bar sheath steel pipe, described in the bar sheath outer wall of steel pipe that climbs be processed into back taper;
2) set up scaffold in chimney wall center, scaffold adopts common scaffold tubes to set up;
3) the steel ring raw material transport connecting main couple and time radiation beam is also carried out steel ring assembling on the ground to chimney is inner;
4) central drum circle is installed;
5) on the described bar that climbs, punching jack is installed, described punching jack is installed in the released state and described punching jack is adjusted to corresponding absolute altitude;
6) install on main couple, secondary radiation beam and main couple and revolve connecting rod, to promote bottom assembled good described steel ring to secondary radiation beam and with clamping plate, described radiation beam to be connected with the crosspoint of swing arm under main couple by stud;
7) laying construction platform legs palm, at this moment the basic installation of the agent structure of whole operation platform, hydraulic power unit is installed in platform near central drum circle place, debugging pumping plant also tries lifting construction platform, debug qualified rear lifting construction platform and raise 1.5m, then stack shell of constructing successively respectively saves concrete blinding, and now operation platform hoisting depth meets the installation needs of internal hanger, outer suspension bracket completely;
8) below hitch point internal hanger, outer suspension bracket being arranged on the Two bors d's oeuveres channel-section steel of swing arm under time radiation beam and truss, by two-layer suspension bracket platform hoop crossbeam, internal hanger and outer suspension bracket are connected into a hoop entirety, described suspension bracket platform hoop crossbeam is laid platform legs hand cradle to form formwork platform and form removal platform, hang safety net outside suspension bracket outside and reveal all the details, the now installation of operation platform structure all completes;
9) chimney shaft normal construction, the bar sheath steel pipe that climbs during operation platform lifting promotes together, after bar sheath steel pipe lifting of climbing puts in place, the gap mortar between described steel pipe lower end and concrete cavity is tamped, every 3-3.5m height, the described bar that climbs is extracted out in concrete tube wall, cavity is filled closely knit with mortar after extraction, place climbing boots in situ again, installation is climbed bar sheath steel pipe, climb bar, punching jack resets, continue stack shell construction, climb bar extraction displacement never allow same absolute altitude to extract the bar that climbs of more than 2 groups quantity out for main couple simultaneously, 8 times should be divided equally in 3-3.5m height, each extraction one, alternately extract out successively, for secondary radiation beam, allow the symmetrical operation of extracting two bars that climb out simultaneously of same absolute altitude, but also to divide equally and extract out successively, can not the same period, the bar that climbs is extracted out with the large quantity in position.
Technical characteristic of the present invention also has: described in the bar that climbs comprise climb bar and time radiation beam of main couple and to climb bar, the described main couple bar that climbs is positioned at below main couple, and described radiation beam bar that climbs is positioned at below time radiation beam.
Technical characteristic of the present invention also has: described main couple is eight Pin main couples, and every Pin main couple is provided with two main couples and climbs bar.
Technical characteristic of the present invention also has: described radiation beam is 24 truss structures, and every truss structure is provided with a time radiation beam and climbs bar.
Technical characteristic of the present invention also has: described formwork platform comprises interior formwork platform 9 and outer formwork platform 8.
Technical characteristic of the present invention also has: described form removal platform comprises interior form removal platform and outer form removal platform.
Technical characteristic of the present invention also has: described steel concrete shuttering comprises standard large form, contracture template, link and radius adjusting device.
Technical characteristic of the present invention also has: described standard large form comprises standard inner formword and standard exterior sheathing, is linked into an integrated entity between described standard inner formword and standard exterior sheathing by split bolt.
Technical characteristic of the present invention also has: described contracture template comprises contracture inner formword and contracture exterior sheathing, is also linked into an integrated entity by split bolt between described contracture inner formword and contracture exterior sheathing; Described radius adjusting device comprises encloses purlin and regulates the positive and negative leading screw of radius.
Beneficial effect of the present invention is: 1) in the construction of this concrete chimney, operation platform primary load passes to Hoisting System by space truss, Hoisting System to concrete barrel, effectively can avoid the large hole of chimney (construction hole, both sides floss hole) region by 8 groups of main lifting arm transmitted loads; 2) this construction solves lifting arm and recycles a difficult problem, and by sheath steel pipe, lifting arm promotes convenient, and decrease the disposable input cost in construction, the use amount of template is about 33.3% of common equipment, reduces overall investment; 3) the little dead man of the supreme reinforcing bar of this hydraulic pressure reverse mould device, without the eccentric load of fixed-direction, operation platform without drift phenomenon, construction height comparatively chimney stack barrel time, overcome little dead man and Platform center cage rocks larger problem along Flexible slideway in lifting process, platform is more stable; Safety improves, and hoisting velocity also improves, and accelerates speed of application; 4) this construction employing two saves template overturning, reduces one deck template than routine; This hydraulic pressure reverse mould device construction labour intensity is moderate, the lifting work of rail-free mould, and the hoisting depth of stack shell template changes 3m into by original 4.5m, reduces labour intensity, obvious accelerating construction progress of dynamically working continuously, and construction period reduction obviously.
Accompanying drawing explanation
Accompanying drawing 1 is that the present invention constructs schematic diagram, accompanying drawing 2 is part-structure schematic diagrames in accompanying drawing 1, accompanying drawing 3 be accompanying drawing 1 overlook direction schematic diagram, wherein, 1 is elevator, 2 is elevator well frames, 3 is main couples, 4 is time radiation beams, 5 is central drum circles, 6 is outer suspension brackets, 7 is internal hangers, 8 is outer formwork platforms, 9 is interior formwork platforms, 10 is outer form removal platforms, 11 is interior form removal platforms, 12 is enclose purlin, 13 is safety nets, 14 is elevator melt pits, 15 is barrel split bolts, 16 is the bar sheath steel pipes that climb, 17 is the bars that climb, 18 is punching jack, 19 is concrete horizontal construction joints, 20 is suspension bracket platform hoop crossbeams, 21 is operation platform scaffold floors, 22 is radius adjusting devices, 23 is that main couple revolves connecting rod.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is specifically described.
The invention discloses a kind of circular steel reinforced concrete chimney wall reverse mould construction method, the method comprises the following steps:
1) in chimney raft end face stack shell drop shadow spread, bury built-in fitting underground according to design, conventional construction chimney wall first segment reinforcing bar, template, install and to climb bar 17, bar 17 overcoat that climbs climbs bar sheath steel pipe 16, and bar sheath steel pipe 16 outer wall that climbs is processed into back taper.
The bar 17 that wherein climbs comprises climb bar and time radiation beam of main couple and to climb bar, the main couple bar that climbs is positioned at below main couple 3, the secondary radiation beam bar that climbs is positioned at below time radiation beam 4, main couple 3 is eight Pin main couples, every Pin main couple is provided with two main couples and climbs bar, secondary radiation, 4 is 24 truss structures, and every truss structure is provided with a time radiation beam and climbs bar.
Be the tapering that the long bar 17 that climbs of 1.6m processes 2.5mm at the tapering of the outer bar sheath steel pipe 16 that climbs arranged of the bar 17 that climbs.
2) set up scaffold in chimney wall center, scaffold adopts common scaffold tubes to set up.
3) the steel ring raw material transport connecting main couple 3 and time radiation beam 4 is also carried out steel ring assembling on the ground to chimney is inner.
4) central drum circle 5 is installed.
5) punching jack 18 is installed climbing on bar 17, in the released state punching jack 18 is installed and punching jack 18 is adjusted to corresponding absolute altitude.
6) install on main couple 3, secondary radiation beam 4 and main couple and revolve connecting rod 23, to promote bottom assembled good steel ring to secondary radiation beam 4 and with clamping plate, secondary radiation beam 4 to be connected with the crosspoint of swing arm under main couple by stud.
7) laying construction platform legs palm 21, at this moment the basic installation of the agent structure of whole operation platform, hydraulic power unit is installed in platform near central drum circle 5 place, debugging pumping plant also tries lifting construction platform, debug qualified rear lifting construction platform and raise 1.5m, then stack shell of constructing successively respectively saves concrete blinding, and now operation platform hoisting depth meets the installation needs of internal hanger 7, outer suspension bracket 6 completely.
8) below hitch point internal hanger 7, outer suspension bracket 6 being arranged on the Two bors d's oeuveres channel-section steel of swing arm under time radiation beam 4 and truss, by two-layer suspension bracket platform hoop crossbeam 20, internal hanger 7 and outer suspension bracket 6 are connected into a hoop entirety, suspension bracket platform hoop crossbeam 20 is laid platform legs hand cradle to form formwork platform and form removal platform, hang safety net 13 outside suspension bracket 6 outside and reveal all the details, the now installation of operation platform structure all completes.
Formwork platform comprises interior formwork platform 9 and outer formwork platform 8.
Form removal platform comprises interior form removal platform 11 and outer form removal platform 10.
9) chimney shaft normal construction, the bar sheath steel pipe 16 that climbs during operation platform lifting promotes together, after bar sheath steel pipe 16 lifting of climbing puts in place, the gap mortar between steel pipe lower end and concrete cavity is tamped, extract out in concrete tube wall every the 3-3.5m bar 17 that highly will climb, cavity is filled closely knit with mortar after extraction, place climbing boots in situ again, installation is climbed bar sheath steel pipe 16, climb bar 17, punching jack 18 resets, continue stack shell construction, climb bar 17 extraction displacement never allow same absolute altitude to extract the bar 17 that climbs of more than 2 groups quantity out for main couple 3 simultaneously, 8 times should be divided equally in 3-3.5m height, each extraction one, alternately extract out successively, for secondary radiation beam 4, allow the symmetrical operation of extracting two bars 17 that climb out simultaneously of same absolute altitude, but also to divide equally and extract out successively, can not the same period, the bar 17 that climbs is extracted out with the large quantity in position.
In addition, be exactly that stack shell reinforcing bar, steel concrete shuttering, concrete construction and conventional electric hoist platform reverse mould construction method are similar, just this scheme adopts two joint template overturnings, and reduce one deck than the template of routine, construction method does not repeat them here with order.
When operation platform rises to certain altitude, and finish platform loading test employing straight line elevator material loading is carried out stack shell construction, the construction method of construction method and conventional high-rise building straight line elevator is similar, also repeats no more.
In this chimney construction, steel concrete shuttering used comprises standard large form, contracture template, link and radius adjusting device.Standard large form comprises standard inner formword and standard exterior sheathing, is linked into an integrated entity and control relative position and control wall thickness between standard inner formword and standard exterior sheathing by split bolt and sleeve pipe.Contracture template comprises contracture inner formword and contracture exterior sheathing, is also linked into an integrated entity by split bolt between contracture inner formword and contracture exterior sheathing.Radius adjusting device comprises encloses purlin and regulates the positive and negative leading screw of radius.Enclose the fixing entirety that is linked to be by steel concrete shuttering of purlin and ensure that circumferential direction is shaping, by regulating the positive and negative leading screw of radius to carry out adjusting template radius size, template adopts two joint overturnings, decreases a joint template than traditional reverse mould construction method.
Claims (9)
1. a circular steel reinforced concrete chimney wall reverse mould construction method, the method step is:
1) in chimney raft end face stack shell drop shadow spread, bury built-in fitting underground according to design, conventional construction chimney wall first segment reinforcing bar, template, install and to climb bar, described in the bar overcoat that climbs to climb bar sheath steel pipe, described in the bar sheath outer wall of steel pipe that climbs be processed into back taper;
2) set up scaffold in chimney wall center, scaffold adopts common scaffold tubes to set up;
3) the steel ring raw material transport connecting main couple and time radiation beam is also carried out steel ring assembling on the ground to chimney is inner;
4) central drum circle is installed;
5) on the described bar that climbs, punching jack is installed, described punching jack is installed in the released state and described punching jack is adjusted to corresponding absolute altitude;
6) install on main couple, secondary radiation beam and main couple and revolve connecting rod, to promote bottom assembled good described steel ring to secondary radiation beam and with clamping plate, described radiation beam to be connected with the crosspoint of swing arm under main couple by stud;
7) laying construction platform legs palm, at this moment the basic installation of the agent structure of whole operation platform, hydraulic power unit is installed in platform near central drum circle place, debugging pumping plant also tries lifting construction platform, debug qualified rear lifting construction platform and raise 1.5m, then stack shell of constructing successively respectively saves concrete blinding, and now operation platform hoisting depth meets the installation needs of internal hanger, outer suspension bracket completely;
8) below hitch point internal hanger, outer suspension bracket being arranged on the Two bors d's oeuveres channel-section steel of swing arm under time radiation beam and truss, by two-layer suspension bracket platform hoop crossbeam, internal hanger and outer suspension bracket are connected into a hoop entirety, described suspension bracket platform hoop crossbeam is laid platform legs hand cradle to form formwork platform and form removal platform, hang safety net outside suspension bracket outside and reveal all the details, the now installation of operation platform structure all completes;
9) chimney shaft normal construction, the bar sheath steel pipe that climbs during operation platform lifting promotes together, after bar sheath steel pipe lifting of climbing puts in place, the gap mortar between described steel pipe lower end and concrete cavity is tamped, every 3-3.5m height, the described bar that climbs is extracted out in concrete tube wall, cavity is filled closely knit with mortar after extraction, place climbing boots in situ again, installation is climbed bar sheath steel pipe, climb bar, punching jack resets, continue stack shell construction, climb bar extraction displacement never allow same absolute altitude to extract the bar that climbs of more than 2 groups quantity out for main couple simultaneously, 8 times should be divided equally in 3-3.5m height, each extraction one, alternately extract out successively, for secondary radiation beam, allow the symmetrical operation of extracting two bars that climb out simultaneously of same absolute altitude, but also to divide equally and extract out successively, can not the same period, the bar that climbs is extracted out with the large quantity in position.
2. according to circular steel reinforced concrete chimney wall reverse mould construction method according to claim 1, it is characterized in that: described in the bar that climbs comprise climb bar and time radiation beam of main couple and to climb bar, the described main couple bar that climbs is positioned at below main couple, and described radiation beam bar that climbs is positioned at below time radiation beam.
3. according to circular steel reinforced concrete chimney wall reverse mould construction method according to claim 2, it is characterized in that: described main couple is eight Pin main couples, every Pin main couple is provided with two main couples and climbs bar.
4. according to circular steel reinforced concrete chimney wall reverse mould construction method according to claim 2, it is characterized in that: described radiation beam is 24 truss structures, every truss structure is provided with a time radiation beam and climbs bar.
5., according to circular steel reinforced concrete chimney wall reverse mould construction method according to claim 2, it is characterized in that: described formwork platform comprises interior formwork platform 9 and outer formwork platform 8.
6., according to circular steel reinforced concrete chimney wall reverse mould construction method according to claim 2, it is characterized in that: described form removal platform comprises interior form removal platform and outer form removal platform.
7., according to circular steel reinforced concrete chimney wall reverse mould construction method according to claim 1, it is characterized in that: described steel concrete shuttering comprises standard large form, contracture template, link and radius adjusting device.
8. according to circular steel reinforced concrete chimney wall reverse mould construction method according to claim 7, it is characterized in that: described standard large form comprises standard inner formword and standard exterior sheathing, linked into an integrated entity by split bolt between described standard inner formword and standard exterior sheathing.
9. according to circular steel reinforced concrete chimney wall reverse mould construction method according to claim 7, it is characterized in that: described contracture template comprises contracture inner formword and contracture exterior sheathing, also linked into an integrated entity by split bolt between described contracture inner formword and contracture exterior sheathing; Described radius adjusting device comprises encloses purlin and regulates the positive and negative leading screw of radius.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150091A (en) * | 2016-07-19 | 2016-11-23 | 河南省第二建筑工程发展有限公司 | A kind of chimney radius governor motion |
| CN106351441A (en) * | 2016-10-21 | 2017-01-25 | 中国化学工程第六建设有限公司 | Chimney creeping formwork construction device and construction method |
| CN107116674A (en) * | 2017-06-30 | 2017-09-01 | 中交第航务工程局有限公司 | A kind of jack form removal method of T-shaped beam monoblock type template |
| CN107355068A (en) * | 2017-09-19 | 2017-11-17 | 郑州科润机电工程有限公司 | A kind of automatic concentration tightening device |
| CN107435438A (en) * | 2017-08-16 | 2017-12-05 | 黄晖 | A kind of chimney turnover formwork construction device |
| CN107575018A (en) * | 2017-08-31 | 2018-01-12 | 山东丰汇设备技术有限公司 | A kind of special-shaped chimney hydraulic mould lifting device |
| CN107780662A (en) * | 2016-08-30 | 2018-03-09 | 徐建新 | The construction method and construction equipment of a kind of chimney shaft |
| CN110553127A (en) * | 2019-08-15 | 2019-12-10 | 中铁上海工程局集团有限公司 | Adjustable support device and use method thereof |
| CN110984563A (en) * | 2019-12-31 | 2020-04-10 | 荆门市佰思机械科技有限公司 | Automatic aligning and automatic climbing device |
| CN112922326A (en) * | 2021-03-03 | 2021-06-08 | 中国建筑第八工程局有限公司 | Lightweight hydraulic reverse mold lifting system and construction method thereof |
| CN113279620A (en) * | 2021-04-21 | 2021-08-20 | 北京崇建工程有限公司 | Sleeve type multi-pipe chimney construction method |
| CN113700306A (en) * | 2021-08-27 | 2021-11-26 | 北京天邦巨成科技有限公司 | Hydraulic lifting method for steel structure building |
| CN113863767A (en) * | 2021-09-30 | 2021-12-31 | 中国化学工程第六建设有限公司 | Hydraulic mold lifting device for chimney and construction method |
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| CN1837549A (en) * | 2006-04-26 | 2006-09-27 | 中国建筑第二工程局 | Moulding equipment with electric claming frame and synchronous climbing control method thereof |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150091A (en) * | 2016-07-19 | 2016-11-23 | 河南省第二建筑工程发展有限公司 | A kind of chimney radius governor motion |
| CN107780662A (en) * | 2016-08-30 | 2018-03-09 | 徐建新 | The construction method and construction equipment of a kind of chimney shaft |
| CN106351441A (en) * | 2016-10-21 | 2017-01-25 | 中国化学工程第六建设有限公司 | Chimney creeping formwork construction device and construction method |
| CN107116674A (en) * | 2017-06-30 | 2017-09-01 | 中交第航务工程局有限公司 | A kind of jack form removal method of T-shaped beam monoblock type template |
| CN107435438B (en) * | 2017-08-16 | 2020-03-10 | 黄晖 | Chimney rollover construction device |
| CN107435438A (en) * | 2017-08-16 | 2017-12-05 | 黄晖 | A kind of chimney turnover formwork construction device |
| CN107575018A (en) * | 2017-08-31 | 2018-01-12 | 山东丰汇设备技术有限公司 | A kind of special-shaped chimney hydraulic mould lifting device |
| CN107355068A (en) * | 2017-09-19 | 2017-11-17 | 郑州科润机电工程有限公司 | A kind of automatic concentration tightening device |
| CN107355068B (en) * | 2017-09-19 | 2022-09-16 | 郑州科润机电工程有限公司 | Automatic centralized tightening device |
| CN110553127A (en) * | 2019-08-15 | 2019-12-10 | 中铁上海工程局集团有限公司 | Adjustable support device and use method thereof |
| CN110984563A (en) * | 2019-12-31 | 2020-04-10 | 荆门市佰思机械科技有限公司 | Automatic aligning and automatic climbing device |
| CN112922326A (en) * | 2021-03-03 | 2021-06-08 | 中国建筑第八工程局有限公司 | Lightweight hydraulic reverse mold lifting system and construction method thereof |
| CN113279620A (en) * | 2021-04-21 | 2021-08-20 | 北京崇建工程有限公司 | Sleeve type multi-pipe chimney construction method |
| CN113700306A (en) * | 2021-08-27 | 2021-11-26 | 北京天邦巨成科技有限公司 | Hydraulic lifting method for steel structure building |
| CN113863767A (en) * | 2021-09-30 | 2021-12-31 | 中国化学工程第六建设有限公司 | Hydraulic mold lifting device for chimney and construction method |
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Address after: 266100 No. 882-1 Tong'an Road, Laoshan District, Qingdao City, Shandong Province Patentee after: Shandong Power Construction Third Engineering Co., Ltd. Address before: 266100 No. 882-1 Tong'an Road, Laoshan District, Qingdao City, Shandong Province Patentee before: Shangdong Electric Power Construction No.3 Engineering Co. |