CN104712143B - A kind of circular steel reinforced concrete chimney wall reverse mould construction method - Google Patents

A kind of circular steel reinforced concrete chimney wall reverse mould construction method Download PDF

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CN104712143B
CN104712143B CN201510108991.XA CN201510108991A CN104712143B CN 104712143 B CN104712143 B CN 104712143B CN 201510108991 A CN201510108991 A CN 201510108991A CN 104712143 B CN104712143 B CN 104712143B
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bar
climbs
platform
radiation beam
construction
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CN104712143A (en
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张丰民
李明怀
王金海
尹业先
张冬梅
王晓雷
郭栋
吴敦文
李峰
王洪伟
高绪军
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Shandong Power Construction Third Engineering Co Ltd
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Shangdong Electric Power Construction No3 Engineering Co
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Abstract

A kind of circular steel reinforced concrete chimney wall reverse mould construction method, step is: bury built-in fitting underground;Scaffold is set up in chimney wall center;The steel ring raw material connecting main couple and time radiation beam is transported to chimney inside and carries out steel ring assembling on the ground;Central authorities' drum circle is installed;Climbing, punching jack is installed on bar, punching jack is installed in the released state and punching jack is adjusted to corresponding absolute altitude;Install main couple, secondary radiation beam and main couple wind up connecting rod, promote assembled good steel ring to time radiating bottom beam and be connected with the cross point of swing arm under main couple by secondary radiation beam with clamping plate by stud;Laying construction platform legs palm etc.;Chimney shaft normal construction.This construction uses two joint template overturnings, reduces by one layer of template than routine;This hydraulic pressure reverse mould device construction labor intensity is moderate, and the lifting work of rail-free mould reduces labor intensity, obvious accelerating construction progress of dynamically working continuously, and construction period reduction is substantially.

Description

A kind of circular steel reinforced concrete chimney wall reverse mould construction method
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 typically has reverse mould construction method and slip-form construction method, wherein the chimney wall after slding form operation there is smooth in appearance, without connecing stubble, the advantage that surface processes can not be done, but the high defect of its construction equipment cost is the most obvious;By contrast, although the chimney after reverse mould construction exists more significantly seam, but the method has the advantage that construction cost is low, therefore, in the chimney construction less, the highest at diameter, under giving one's full attention to seam construction premise, use reverse mould construction method as far as possible.
In prior art, chimney reverse mould construction will be fixed in chimney wall by Concrete Filled for bearing the lifting arm (i.e. the following stated climb bar) of platform Main Load, thus add chimney cost.
Summary of the invention
It is an object of the invention to overcome shortcoming present 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 recycles, the technical scheme is that a kind of 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, conventional construction chimney wall first segment reinforcing bar, template underground according to design, the bar that climbs be installed, described in the bar overcoat that climbs climb bar sheath steel pipe, described in the bar sheath outer wall of steel pipe that climbs be processed into inverted cone;
2) setting up scaffold in chimney wall center, scaffold uses common scaffold tubes to set up;
3) the steel ring raw material connecting main couple and time radiation beam is transported to chimney inside and carries out steel ring assembling on the ground;
4) central authorities' drum circle is installed;
5) punching jack is installed on the described bar that climbs, described punching jack is installed in the released state and described punching jack is adjusted to corresponding absolute altitude;
6) install main couple, secondary radiation beam and main couple wind up connecting rod, promote assembled good described steel ring to being connected with the cross point of main couple lower boom by the described secondary beam that radiates with clamping plate bottom time radiation beam and by stud;
7) laying construction platform legs palm, the basic installation of agent structure of the most whole operation platform, hydraulic power unit is installed at platform close central authorities drum circle, debugging pumping plant also tries lifting construction platform, debug qualified rear lifting construction platform and raise 1.5m, construction stack shell respectively saves concrete blinding the most successively, and now operation platform hoisting depth fully meets the installation needs of internal hanger, outer suspension bracket;
8) below the hitch point of the Two bors d's oeuveres channel-section steel that internal hanger, outer suspension bracket are arranged on time radiation beam and truss lower boom, by the suspension bracket platform hoop crossbeam of two-layer, 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, hanging safety net outside outside suspension bracket and reveal all the details, the now installation of operation platform structure is fully completed;
null9) chimney shaft normal construction,The bar sheath steel pipe that climbs during operation platform lifting promotes together,After the bar sheath steel pipe that climbs promotes and 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 the most in situ,Installation is climbed bar sheath steel pipe、Climb bar、Punching jack resets,Continue stack shell construction,Extracting out of bar of climbing is replaced for the bar that climbs never allowing same absolute altitude to extract more than 2 groups quantity out for main couple simultaneously,Should divide equally in 3-3.5m height 8 times,Extract one out every time,Alternately extract out successively,For secondary radiation beam,Allow the most symmetrical operation extracting two bars that climb out 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 big quantity in position.
The technical characteristic of the present invention also has: described in the bar that climbs include that main couple climbs bar and time radiation beam climbs 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.
The 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.
The technical characteristic of the present invention also has: described time radiation beam is 24 truss structures, and every truss structure is provided with one radiation beam and climbs bar.
The technical characteristic of the present invention also has: described formwork platform includes interior formwork platform 9 and outer formwork platform 8.
The technical characteristic of the present invention also has: described form removal platform includes interior form removal platform and outer form removal platform.
The technical characteristic of the present invention also has: described steel concrete shuttering includes standard large form, contracture template, connection member and radius adjusting means.
The technical characteristic of the present invention also has: described standard large form includes template and standard exterior sheathing in standard, is linked into an integrated entity by split bolt in described standard between template and standard exterior sheathing.
The technical characteristic of the present invention also has: described contracture template includes template and contracture exterior sheathing in contracture, is also linked into an integrated entity by split bolt in described contracture between template and contracture exterior sheathing;Described radius adjusting means includes enclosing purlin and the regulation positive and negative leading screw of radius.
The beneficial effects of the present invention is: 1) this concrete chimney construction in, operation platform primary load passes to lifting system by space truss, lifting system to concrete barrel, can effectively avoid the big hole of chimney (construction hole, both sides floss hole) region by 8 groups of main lifting arm transmission load;2) this construction solves lifting arm and recycles a difficult problem, and by sheath steel pipe, lifting arm promotes convenient, decreases the disposable input cost in construction, and the usage amount of template is about the 33.3% of common equipment, reduces entirety investment;3) the little dead man of this hydraulic pressure supreme reinforcing bar of reverse mould device, without the eccentric load of fixed-direction, operation platform is without drift phenomenon, when construction height relatively chimney stack barrel, overcoming little dead man and Platform center cage rocks bigger problem along Flexible slideway in lifting process, platform is more stable;Safety improves, and promotes speed and also improves, accelerates speed of application;4) this construction uses two joint template overturnings, reduces by one layer of template than routine;This hydraulic pressure reverse mould device construction labor intensity is moderate, the lifting work of rail-free mould, and the hoisting depth of stack shell template is changed into 3m by original 4.5m, reduces labor intensity, obvious accelerating construction progress of dynamically working continuously, and construction period reduction is substantially.
Accompanying drawing explanation
Accompanying drawing 1 is that the present invention constructs schematic diagram, accompanying drawing 2 is part-structure schematic diagram in accompanying drawing 1, accompanying drawing 3 is the vertical view direction schematic diagram of accompanying drawing 1, wherein, 1 is elevator, 2 is elevator well frame, 3 is main couple, 4 is time radiation beam, 5 is central authorities' drum circles, 6 is outer suspension bracket, 7 is internal hanger, 8 is outer formwork platform, 9 is interior formwork platform, 10 is outer form removal platform, 11 is interior form removal platform, 12 is to enclose purlin, 13 is safety net, 14 is elevator melt pit, 15 is barrel split bolt, 16 is the bar sheath steel pipe that climbs, 17 is the bar that climbs, 18 is punching jack, 19 is concrete horizontal construction joint, 20 is suspension bracket platform hoop crossbeam, 21 is operation platform scaffold board, 22 is radius adjusting means, 23 is that main couple winds up connecting rod.
Detailed description of the invention
Below in conjunction with the accompanying drawings, 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) burying built-in fitting, conventional construction chimney wall first segment reinforcing bar, template underground according to design in chimney raft end face stack shell drop shadow spread, install the bar 17 that climbs, bar 17 overcoat that climbs climbs bar sheath steel pipe 16, and bar sheath steel pipe 16 outer wall that climbs is processed into inverted cone.
The bar 17 that wherein climbs includes that main couple climbs bar and time radiation beam climbs bar, the main couple bar that climbs is positioned at below main couple 3, the secondary radiation beam bar that climbs is positioned at time below 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 one radiation beam and climbs bar.
The bar 17 that climbs that tapering is 1.6m length at the outer bar sheath steel pipe 16 that climbs arranged of bar 17 that climbs processes the tapering of 2.5mm.
2) setting up scaffold in chimney wall center, scaffold uses common scaffold tubes to set up.
3) the steel ring raw material connecting main couple 3 and time radiation beam 4 is transported to chimney inside and carries out steel ring assembling on the ground.
4) central authorities' drum circle 5 is installed.
5) at the installation punching jack 18 on bar 17 that climbs, punching jack 18 is installed in the released state and punching jack 18 is adjusted to corresponding absolute altitude.
6) install main couple 3, secondary radiation beam 4 and main couple wind up connecting rod 23, promote assembled good steel ring to time radiating bottom beam 4 and be connected with the cross point of main couple lower boom by secondary radiation beam 4 with clamping plate by stud.
7) laying construction platform legs palm 21, the basic installation of agent structure of the most whole operation platform, hydraulic power unit is installed at platform close central authorities drum circle 5, debugging pumping plant also tries lifting construction platform, debug qualified rear lifting construction platform and raise 1.5m, construction stack shell respectively saves concrete blinding the most successively, and now operation platform hoisting depth fully meets the installation needs of internal hanger 7, outer suspension bracket 6.
8) below the hitch point of the Two bors d's oeuveres channel-section steel that internal hanger 7, outer suspension bracket 6 are arranged on time radiation beam 4 and truss lower boom, by the suspension bracket platform hoop crossbeam 20 of two-layer, 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, hanging safety net 13 outside suspension bracket 6 outside and reveal all the details, the now installation of operation platform structure is fully completed.
Formwork platform includes interior formwork platform 9 and outer formwork platform 8.
Form removal platform includes interior form removal platform 11 and outer form removal platform 10.
null9) chimney shaft normal construction,The bar sheath steel pipe 16 that climbs during operation platform lifting promotes together,After the bar sheath steel pipe 16 that climbs promotes and 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 the most in situ,Installation is climbed bar sheath steel pipe 16、Climb bar 17、Punching jack 18 resets,Continue stack shell construction,Extracting out of bar 17 of climbing is replaced for the bar 17 that climbs never allowing same absolute altitude to extract more than 2 groups quantity out for main couple 3 simultaneously,Should divide equally in 3-3.5m height 8 times,Extract one out every time,Alternately extract out successively,For secondary radiation beam 4,Allow the most symmetrical operation extracting two bars 17 that climb out 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 big quantity in position.
Additionally, be exactly stack shell reinforcing bar, steel concrete shuttering, concrete construction similar with conventional electronic lifting platform reverse mould construction method, simply this scheme uses two joint template overturnings, and the conventional template of ratio reduces one layer, construction method with sequentially do not repeat them here.
When operation platform rises to certain altitude, and finishing platform loading test employing straight line elevator feeding carries out stack shell construction, construction method is similar with the construction method of conventional high-rise straight line elevator, also repeats no more.
In this chimney construction, steel concrete shuttering used includes standard large form, contracture template, connection member and radius adjusting means.Standard large form includes template and standard exterior sheathing in standard, in standard between template and standard exterior sheathing integral with telescopic joint by split bolt and control relative position and control wall thickness.Contracture template includes template and contracture exterior sheathing in contracture, is also linked into an integrated entity by split bolt in contracture between template and contracture exterior sheathing.Radius adjusting means includes enclosing purlin and the regulation positive and negative leading screw of radius.Enclosing the fixing entirety that is linked to be by steel concrete shuttering of purlin and ensure circumferential direction molding, carry out adjusting template radius size by the regulation positive and negative leading screw of radius, template uses 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, conventional construction chimney wall first segment reinforcing bar, template underground according to design, the bar that climbs be installed, described in the bar overcoat that climbs climb bar sheath steel pipe, described in the bar sheath outer wall of steel pipe that climbs be processed into inverted cone;
2) setting up scaffold in chimney wall center, scaffold uses common scaffold tubes to set up;
3) the steel ring raw material connecting main couple and time radiation beam is transported to chimney inside and carries out steel ring assembling on the ground;
4) central authorities' drum circle is installed;
5) punching jack is installed on the described bar that climbs, described punching jack is installed in the released state and described punching jack is adjusted to corresponding absolute altitude;
6) install main couple, secondary radiation beam and main couple wind up connecting rod, promote assembled good described steel ring to being connected with the cross point of main couple lower boom by the described secondary beam that radiates with clamping plate bottom time radiation beam and by stud;
7) laying construction platform legs palm, the basic installation of agent structure of the most whole operation platform, hydraulic power unit is installed at platform close central authorities drum circle, debugging pumping plant also tries lifting construction platform, debug qualified rear lifting construction platform and raise 1.5m, construction stack shell respectively saves concrete blinding the most successively, and now operation platform hoisting depth fully meets the installation needs of internal hanger, outer suspension bracket;
8) below the hitch point of the Two bors d's oeuveres channel-section steel that internal hanger, outer suspension bracket are arranged on time radiation beam and truss lower boom, by the suspension bracket platform hoop crossbeam of two-layer, 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, hanging safety net outside outside suspension bracket and reveal all the details, the now installation of operation platform structure is fully completed;
null9) chimney shaft normal construction,The bar sheath steel pipe that climbs during operation platform lifting promotes together,After the bar sheath steel pipe that climbs promotes and 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 the most in situ,Installation is climbed bar sheath steel pipe、Climb bar、Punching jack resets,Continue stack shell construction,Extracting out of bar of climbing is replaced for the bar that climbs never allowing same absolute altitude to extract more than 2 groups quantity out for main couple simultaneously,Should divide equally in 3-3.5m height 8 times,Extract one out every time,Alternately extract out successively,For secondary radiation beam,Allow the most symmetrical operation extracting two bars that climb out 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 big quantity in position.
2. according to the circular steel reinforced concrete chimney wall reverse mould construction method described in claim 1, it is characterized in that: described in the bar that climbs include that main couple climbs bar and time radiation beam climbs 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 the circular steel reinforced concrete chimney wall reverse mould construction method described in claim 2, it is characterised in that: described main couple is eight Pin main couples, and every Pin main couple is provided with two main couples and climbs bar.
4. according to the circular steel reinforced concrete chimney wall reverse mould construction method described in claim 2, it is characterised in that: described time radiation beam is 24 truss structures, and every truss structure is provided with one radiation beam and climbs bar.
5. according to the circular steel reinforced concrete chimney wall reverse mould construction method described in claim 2, it is characterised in that: described formwork platform includes interior formwork platform (9) and outer formwork platform (8).
6. according to the circular steel reinforced concrete chimney wall reverse mould construction method described in claim 2, it is characterised in that: described form removal platform includes interior form removal platform and outer form removal platform.
7. according to the circular steel reinforced concrete chimney wall reverse mould construction method described in claim 1, it is characterised in that: steel concrete shuttering includes standard large form, contracture template, connection member and radius adjusting means.
8. according to the circular steel reinforced concrete chimney wall reverse mould construction method described in claim 7, it is characterised in that: described standard large form includes template and standard exterior sheathing in standard, is linked into an integrated entity by split bolt in described standard between template and standard exterior sheathing.
9. according to the circular steel reinforced concrete chimney wall reverse mould construction method described in claim 7, it is characterised in that: described contracture template includes template and contracture exterior sheathing in contracture, is also linked into an integrated entity by split bolt in described contracture between template and contracture exterior sheathing;Described radius adjusting means includes enclosing purlin and the regulation positive and negative leading screw of radius.
CN201510108991.XA 2015-03-12 2015-03-12 A kind of circular steel reinforced concrete chimney wall reverse mould construction method Active CN104712143B (en)

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CN107780662A (en) * 2016-08-30 2018-03-09 徐建新 The construction method and construction equipment of a kind of chimney shaft
CN106351441B (en) * 2016-10-21 2018-07-31 中国化学工程第六建设有限公司 Chimney climbing formwork for 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
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
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
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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.