CN102733608A - Construction method for spray head layer of granulation tower - Google Patents
Construction method for spray head layer of granulation tower Download PDFInfo
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- CN102733608A CN102733608A CN2012101834995A CN201210183499A CN102733608A CN 102733608 A CN102733608 A CN 102733608A CN 2012101834995 A CN2012101834995 A CN 2012101834995A CN 201210183499 A CN201210183499 A CN 201210183499A CN 102733608 A CN102733608 A CN 102733608A
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Abstract
The invention discloses a construction method for a spray head layer of a granulation tower. Construction is performed by directly utilizing a slip form inner platform hanging method through decreasing the climbing speed of a template at a spray head layer section, and a slip form system does not need to be adjusted. The construction method comprises the following steps of: respectively installing steel hangers at elevation positions; performing slip form construction at an elevation section; performing tower roof structure construction; installing lifting equipment on a tower roof; lowering a slip form inner platform; installing suspenders; performing concrete structure construction on the spray head layer; performing structural beam and slab construction on the elevation layer; and removing the platform. According to the construction method for the spray head layer of the granulation tower, the slip form inner platform is directly utilized, the hangers and the suspenders are used for assistance to serve as a template support system of the spray head layer, and the steel dosage for the hangers and the suspenders is under 10t, and thus, the cost is low, and the construction is simple. Only the climbing speed of the template is decreased at the spray head layer section, and the slip form system does not need to be adjusted, and thus, construction joints cannot be generated on a supporting wall, and the construction progress is fast; the slip form inner platform is adopted to serve as an operating platform when the construction is performed on the spray head layer, and thus, high-altitude operations are not needed, and the safety risk is lowered.
Description
Technical field
The present invention relates to cantilever method reinforced concrete construction technology, especially relate to a kind of granulation tower water spray layer job practices.
Background technology
Granulation tower is made up of circular king-tower and square building escalator, and layout is the circumference combination, and circular king-tower interior diameter is 15～18m, the cylindrical shape reinforced concrete structure of high 90～116.3m; The building escalator is 9.50m * 4.50m side's tubular construction, height 90～116.3m, and reinforced concrete structure, it is inner to be that granulation tower provides passage up and down by elevator shaft and steel ladder mainly.
One hanging structure shower nozzle layer (figure-7) is arranged at granulation tower 75～90m absolute altitude place, arrange the reinforced concrete beam and plate of forming by 2 JL-1 stiffness structural beams and relevant beam slab.When the granulation tower construction Difficulties was to carry out king-tower 75～90m absolute altitude place shower nozzle layer structure construction, because non-structure layer under the shower nozzle course in the king-tower, this layer was bigger from heavy load, surplus the whole shower nozzle layer working load about 150 ton.
At present, granulation Tata wall (containing the building escalator) reinforced concrete construction adopts the hydraulic sliding mould construction technology usually; But the difficult point of construction granulation tower is the shower nozzle layer structure construction that king-tower top is unsettled; Because the following non-structure layer of shower nozzle layer in the king-tower, if upwards set up the support of full hall scaffold as shower nozzle layer structure construction by the flooring, then scaffold building is long in time limit; Circulation material consumption is big, and difficulty of construction is big.And having to, 1.5～2m place stops slding form operation under the shower nozzle layer.Prior art system adopts shower nozzle layer form bracing system such as a full hall frame form, all steel truss, suspended-cable structure formwork bracing system or the support of the standard knot girder steel shower nozzle layer of constructing; It is after treating that the shower nozzle layer has been constructed in proper order; The tower wall steel concrete of constructing again; At last by conventional form of construction work order mixed layer reinforced concrete girder slab, hold water layer steel concrete and roofing reinforced concrete structure, simultaneously, stop before sliding back steel truss or suspended-cable structure install at sliding formwork; Must adjust in a large number the inner platform of sliding mode system, can satisfy the lifting of steel work.Utilize existing construction technology to exist than big security risk, duration of a project are long, difficulty of construction is big, construction cost is higher.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, a kind of assurance construction safety is provided, reduces construction cost, the granulation tower shower nozzle layer job practices of accelerating construction progress.
The present invention mainly is achieved through following technical scheme:
Granulation tower shower nozzle layer job practices of the present invention directly utilizes the sliding formwork inner platform to hang method, constructs through reducing template sliding lifting speed at the shower nozzle interval, need not sliding mode system is adjusted, and its method step comprises: (1) absolute altitude place steel suspension member is installed; (2) absolute altitude section slding form operation; (3) cat head structure construction; (4) cat head is installed crane gear, and (5) are transferred the sliding formwork inner platform, suspension rod is installed; (6) construction shower nozzle layer concrete structure; (7) construction absolute altitude sandwich beam plate; (8) remove platform;
When said step (1) rose to design elevation when template cunning suitable for reading, pre-buried steel suspension member bolt sleeve in case when the template end opening arrives design elevation, clear up the pre-embedded bolt sleeve pipe immediately, and the steel suspension member is installed, need slow down template sliding lifting speed between installation period;
Said step (2) in case the steel suspension member install; Recover template sliding lifting speed immediately until design elevation; Template is suitable for reading when reaching design elevation concrete casting flat die plate is suitable for reading can stop sliding; And climbing forms no longer, remove the object that illuminator and other and follow-up work on hydraulic control panel, oil pipe, jack needle valve, the suspension bracket have nothing to do;
Said step (3) comprises platform reinforcing and cat head structure of reinforced concrete; Wherein platform is reinforced and is adopted at the bottom of the jack crossbeam of conventional job practices with tower wall reinforced concrete construction to open form frame; Treat to remove when concrete strength is higher than 5MP jack; The jack horizontal stroke that utilizes the open form frame is as platform support, and dismounting open form frame top rail;
Said step (3) comprises the cat head structure of reinforced concrete; Because the cat head girder is a steel concrete stiffness crossbeam; Its steel truss can be born the working load of stiffness crossbeam fully after installing, can adopt the anti-hanging beam soffit formwork of the steel truss system of stiffness crossbeam; The working load of all the other beam slabs is born by the sliding formwork inner platform, can adopt conventional construction method construction;
Mounting platform was transferred equipment when said step (4) treated that the roof girder board concrete reaches design strength; The said equipment of transferring can be 6 5t low speed winch, horizontal on the crossbeam of hoist engine position, vertically respectively puts two-layer sleeper, and every hoist engine is totally 8 sleepers; The very useful woodwork plate levelling of sleeper; When design elevation will be adjusted in the woodwork plate top, be lifted on hoist engine on the woodwork plate, with steel cable hoist engine is fixed on the pre-buried suspension ring;
When said step (5) treated that the roof girder board concrete reaches design strength, the stripping system was transferred on the steel suspension member of platform to design elevation, and suspension rod is installed;
Said step (6) is utilized the anti-crossbeam template system that hangs of steel truss, and the working load of shower nozzle layer stiffness crossbeam is born by the steel truss of stiffness crossbeam, and all the other beam slab working load are born by the inner platform of being hung;
Said step (7) is with conventional job practices sequence construction absolute altitude sandwich beam plate from bottom to up;
Said step (8) is when completions such as the masonry project of absolute altitude layer, light steel partition wall engineering, plastering engineerings, and the shower nozzle layer concrete reaches the form removal condition, is utilized in crane gear that cat head installs and sliding formwork inner platform integral body is transferred to ground removed.
Said shower nozzle layer construction is aided with suspension member and suspension rod as shower nozzle layer form bracing system for directly utilizing the sliding formwork inner platform to hang method.
Said shower nozzle interval reduces template sliding lifting speed and was reduced to 1.2m/ days from 3m/ days.
The construction of said shower nozzle layer is an operating platform with the sliding formwork platform all.
Compared with prior art: the present invention directly utilizes the sliding formwork inner platform, is aided with suspension member and suspension rod as shower nozzle layer form bracing system, the not enough 10t of suspension member and suspension rod steel using amount, and cost is low, construction is simple; The present invention only reduces template sliding lifting speed at the shower nozzle interval, need not sliding mode system is adjusted, and on barrel, can not produce constuction joint, and construction speed is fast; Shower nozzle layer construction of the present invention is operating platform with the sliding formwork platform all, do not have work high above the ground, reduces security risk.
Description of drawings
Fig. 1 is a construction flow chart of the present invention;
Fig. 2 is that shower nozzle layer formwork bracing system suspension member is arranged sketch map;
Fig. 3 is the local enlarged diagram in C place of Fig. 2;
Fig. 4 transfers for the sliding formwork inner platform and suspension rod is arranged sketch map;
Fig. 5 is the A-A view of Fig. 4;
Fig. 6 is the B-B view of Fig. 4;
Fig. 7 is shower nozzle laminate muscle and stiffness beam arrangement diagram.
Among the figure: 1-sliding formwork inner platform, 2-beam slab, 3-body of wall, 4-pre-embedded bolt sleeve pipe, 5-hoist engine, 6-stiffness crossbeam, 7-suspension rod, the pre-buried suspension ring of 8-, 9-sleeper, 10-crossbeam, 11-tower wall embedded bar.
The specific embodiment
Further describe technical scheme of the present invention below in conjunction with accompanying drawing, but require the scope of protection to be not limited to said.
Extremely shown in Figure 7 like Fig. 1; A kind of granulation tower shower nozzle layer job practices directly utilizes sliding formwork inner platform 1 to hang method, constructs through reducing template sliding lifting speed at the shower nozzle interval; Need not sliding mode system is adjusted, its method step comprises: (1) absolute altitude place steel suspension member is installed; (2) absolute altitude section slding form operation; (3) cat head structure construction; (4) cat head is installed crane gear, and (5) are transferred the sliding formwork inner platform, suspension rod is installed; (6) construction shower nozzle layer concrete structure; (7) construction absolute altitude sandwich beam plate; (8) remove platform;
When said step (1) rose to design elevation when template cunning suitable for reading, pre-buried steel suspension member bolt sleeve 4 in case when the template end opening arrives design elevation, clear up pre-embedded bolt sleeve pipe 4 immediately, and the steel suspension member is installed, need slow down template sliding lifting speed between installation period;
Said step (2) in case the steel suspension member install; Recover template sliding lifting speed immediately until design elevation; Template is suitable for reading when reaching design elevation concrete casting flat die plate is suitable for reading can stop sliding; And climbing forms no longer, remove the object that illuminator and other and follow-up work on hydraulic control panel, oil pipe, jack needle valve, the suspension bracket have nothing to do;
Said step (3) comprises platform reinforcing and cat head structure of reinforced concrete; Wherein platform is reinforced and is adopted at the bottom of the jack crossbeam of conventional job practices with tower wall reinforced concrete construction to open form frame; Treat to remove when concrete strength is higher than 5MP jack; The jack horizontal stroke that utilizes the open form frame is as platform support, and dismounting open form frame top rail;
Said step (3) comprises the cat head structure of reinforced concrete; Because the cat head girder is a steel concrete stiffness crossbeam 6; Its steel truss can be born the working load of stiffness crossbeam 6 fully after installing, can adopt the anti-hanging beam soffit formwork of the steel truss system of stiffness crossbeam 6; The working load of all the other beam slabs 2 is born by sliding formwork inner platform 1, can adopt conventional construction method construction;
Mounting platform was transferred equipment when said step (4) treated that the roof girder board concrete reaches design strength; The said equipment of transferring can be 6 5t low speed winch 5, horizontal on the crossbeam 10 of hoist engine 5 positions, vertically respectively puts two-layer sleeper 9, and every hoist engine 5 is totally 8 sleepers 9; Sleeper 9 very useful woodwork plate levellings; When design elevation will be adjusted in the woodwork plate top, be lifted on hoist engine 5 on the woodwork plate, with steel cable hoist engine 5 is fixed on the pre-buried suspension ring 8;
When said step (5) treated that roofing beam slab 2 concrete reach design strength, the stripping system was transferred on the steel suspension member of sliding formwork inner platform 1 to design elevation, and suspension rod 7 is installed;
Said step (6) is utilized the anti-crossbeam template system that hangs of steel truss, and the working load of shower nozzle layer stiffness crossbeam 6 is born by the steel truss of stiffness crossbeam 6, and all the other beam slab 2 working load are born by the sliding formwork inner platform of being hung 1;
Said step (7) is with conventional job practices sequence construction absolute altitude sandwich beam plate 2 from bottom to up;
Said step (8) is when completions such as the masonry project of absolute altitude layer, light steel partition wall engineering, plastering engineerings, and the shower nozzle layer concrete reaches the form removal condition, is utilized in crane gear that cat head installs and sliding formwork inner platform 1 integral body is transferred to ground removed.
Said shower nozzle layer construction is aided with suspension member and suspension rod 7 as shower nozzle layer form bracing system for directly utilizing sliding formwork inner platform 2 to hang method.
Said shower nozzle interval reduces template sliding lifting speed and was reduced to 1.2m/ days from 3m/ days.
The construction of said shower nozzle layer is an operating platform with sliding formwork platform 1 all.
Below in conjunction with embodiment step of the present invention is explained further details:
1, preparation: comprise " 2 * 150,000 tons of/year nitro-compound fertilizer granulation tower 89.95m, 100.95m, 106.95m, the special constructure scheme of 115.6m " the construction of following the tower wall of establishment, 86.5m concrete slip-form, the steel suspension member makes and accessory preparation, steel suspension member installation personnel tissue, suspension rod 7 preparations, transfer sliding formwork inner platform 1 usefulness lifting establishing allotment etc.;
2,87.5m absolute altitude place steel suspension member is installed: when template cunning suitable for reading rises to the 86.5m absolute altitude, and totally 90 groups of the steel suspension member bolt sleeves 4 of pre-buried DN32 * 290,3 every group; When in case the template end opening arrives the 86.3m absolute altitude; Clear up pre-embedded bolt sleeve pipe 4 immediately, and it is as shown in Figure 2 that the steel suspension member is installed, the steel suspension member is installed and is taken 6 hours; Need slow down template sliding lifting speed between installation period, template absolute altitude suitable for reading must not surpass the 89.5m absolute altitude when end was installed.
3,89.5m-114.1m absolute altitude section slding form operation: in case pipe hanger spare installs; Recover template sliding lifting speed immediately until the 114.1m absolute altitude; During the template 114.1m of reaching absolute altitude suitable for reading the concrete casting flat die plate suitable for reading can stop sliding; And climbing forms no longer, remove the object that illuminator and other and follow-up work on hydraulic control panel, oil pipe, jack needle valve, the suspension bracket have nothing to do.
4, cat head structure construction
(1) platform is reinforced: with being higher than crossbeam bottom surface 20mm at the bottom of the jack crossbeam of conventional job practices with tower wall reinforced concrete construction to door type frame or open form frame; Treat to remove when concrete strength is higher than 5MP jack; The jack crossbeam that utilizes door type frame or open form frame is as platform support, and dismounting open form frame top rail.
(2) cat head structure of reinforced concrete: because the cat head girder is a steel concrete stiffness crossbeam 6; Its steel truss is after installing; Can bear the working load of stiffness crossbeam 6 fully; Can adopt the anti-hanging beam soffit formwork of the steel truss system of stiffness crossbeam 6, the working load of all the other beam slabs 2 is born by sliding formwork inner platform 1, can adopt conventional construction method construction.
5, at cat head crane gear is installed: mounting platform is transferred equipment when treating that roofing beam slab 1 concrete reaches 1.2MP; Said equipment is 6 5t low speed winch 5, and two No. 25 i iron of 12 meters are placed on position shown in Figure 4 respectively, and insert in the preformed hole at two ends; Horizontal on the crossbeam 10 of hoist engine 5 positions, vertically respectively put two-layer sleeper 9; Every hoist engine 5 is totally 8 sleepers 9, sleeper 9 very useful woodwork plate levellings, and 116.4 meters of absolute altitudes will be adjusted in the woodwork plate top; Be lifted on hoist engine 5 on the woodwork plate, hoist engine be fixed on the pre-buried suspension ring 8 of 2# tower with steel cable.
6, transfer sliding formwork inner platform 1 to 87.5m absolute altitude, suspension rod is installed: when treating that roofing beam slab 2 concrete reach design strength, the stripping system is transferred on the steel suspension member of sliding formwork platform 1 to 87.5m absolute altitude, and it is as shown in Figure 4 that suspension rod 7 is installed.
7, construction shower nozzle layer concrete structure: utilize the anti-crossbeam template system that hangs of steel truss, the working load of shower nozzle layer stiffness crossbeam 6 is born by the steel truss of stiffness crossbeam 6, all the other beam slab 2 working load are born by the sliding formwork inner platform of being hung 1.
8, sequence construction 101m, 107m absolute altitude sandwich beam plate 2: with conventional job practices sequence construction 101m, 107m absolute altitude sandwich beam plate 2 from bottom to up.
9, remove platform: when completions such as the masonry project of 90m, 101m, 107m absolute altitude layer, light steel partition wall engineering, plastering engineerings; And the shower nozzle layer concrete reaches the form removal condition, is utilized in crane gear that cat head installs and sliding formwork inner platform 1 integral body is transferred to ground is removed.
Claims (4)
1. granulation tower shower nozzle layer job practices; It is characterized in that: directly utilize sliding formwork inner platform (1) to hang method; Construct through reducing template sliding lifting speed at the shower nozzle interval, need not sliding mode system is adjusted, its method step comprises: (1) absolute altitude place steel suspension member is installed; (2) absolute altitude section slding form operation; (3) cat head structure construction; (4) cat head is installed crane gear, and (5) are transferred the sliding formwork inner platform, suspension rod is installed; (6) construction shower nozzle layer concrete structure; (7) construction absolute altitude sandwich beam plate; (8) remove platform;
When said step (1) rose to design elevation when template cunning suitable for reading, pre-buried steel suspension member bolt sleeve (4) in case when the template end opening arrives design elevation, clear up pre-embedded bolt sleeve pipe (4) immediately, and the steel suspension member is installed, need slow down template sliding lifting speed between installation period;
Said step (2) in case the steel suspension member install; Recover template sliding lifting speed immediately until design elevation; Template is suitable for reading when reaching design elevation concrete casting flat die plate is suitable for reading can stop sliding; And climbing forms no longer, remove the object that illuminator and other and follow-up work on hydraulic control panel, oil pipe, jack needle valve, the suspension bracket have nothing to do;
Said step (3) comprises platform reinforcing and cat head structure of reinforced concrete; Wherein platform is reinforced and is adopted at the bottom of the jack crossbeam of conventional job practices with tower wall reinforced concrete construction to open form frame; Treat to remove when concrete strength is higher than 5MP jack; The jack horizontal stroke that utilizes the open form frame is as platform support, and dismounting open form frame top rail;
Said step (3) comprises the cat head structure of reinforced concrete; Because the cat head girder is a steel concrete stiffness crossbeam (6); Its steel truss can be born the working load of stiffness crossbeam (6) fully after installing, can adopt the anti-hanging beam soffit formwork of the steel truss system of stiffness crossbeam (6); The working load of all the other beam slabs (2) is born by sliding formwork inner platform (1), adopts conventional construction method construction;
Mounting platform was transferred equipment when said step (4) treated that the roof girder board concrete reaches design strength; The said equipment of transferring adopts 6 5t low speed winch (5), goes up horizontal stroke, indulges and respectively put two-layer sleeper (9) in the crossbeam (10) of hoist engine (5) position, and every hoist engine (5) is totally 8 sleepers (9); The very useful woodwork plate levelling of sleeper (9); When design elevation will be adjusted in the woodwork plate top, be lifted on hoist engine (5) on the woodwork plate, with steel cable hoist engine (5) is fixed on the pre-buried suspension ring (8);
Said step (5) is treated roofing beam slab (2) when concrete reaches design strength, and the stripping system is transferred on the steel suspension member of sliding formwork inner platform (1) to design elevation, and suspension rod (7) is installed;
Said step (6) is utilized the anti-crossbeam template system that hangs of steel truss, and the working load of shower nozzle layer stiffness crossbeam (6-1) is born by the steel truss of stiffness crossbeam (6-1), and all the other beam slabs (2) working load is born by the sliding formwork inner platform of being hung (1);
Said step (7) is with conventional job practices sequence construction absolute altitude sandwich beam plate (2) from bottom to up;
Said step (8) is when completions such as the masonry project of absolute altitude layer, light steel partition wall engineering, plastering engineerings, and the shower nozzle layer concrete reaches the form removal condition, is utilized in crane gear that cat head installs and sliding formwork inner platform (1) integral body is transferred to ground removed.
2. a kind of granulation tower shower nozzle layer job practices according to claim 1 is characterized in that: said shower nozzle layer construction is aided with suspension member and suspension rod (7) as shower nozzle layer form bracing system for directly utilizing sliding formwork inner platform (2) to hang method.
3. a kind of granulation tower shower nozzle layer job practices according to claim 1 is characterized in that: said shower nozzle interval reduces template sliding lifting speed and was reduced to 1.2m/ days from 3m/ days.
4. a kind of granulation tower shower nozzle layer job practices according to claim 1 is characterized in that: the construction of said shower nozzle layer is an operating platform with sliding formwork platform (1) all.
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| CN201210183499.5A CN102733608B (en) | 2012-08-03 | 2012-08-03 | Construction method for spray head layer of granulation tower |
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| CN201210183499.5A CN102733608B (en) | 2012-08-03 | 2012-08-03 | Construction method for spray head layer of granulation tower |
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Cited By (6)
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| CN103485574A (en) * | 2013-10-08 | 2014-01-01 | 贵州开磷建设有限责任公司 | Method for constructing reinforced concrete structure of tower top of prilling tower |
| CN104594631A (en) * | 2015-02-05 | 2015-05-06 | 中化二建集团有限公司 | Construction process for constructing prilling tower spraying layer by slide mold device dragging construction platform |
| CN106223469A (en) * | 2016-07-20 | 2016-12-14 | 中冶天工集团有限公司 | Tube structure roof boarding construction method and hang modular system |
| WO2017008711A1 (en) * | 2015-07-13 | 2017-01-19 | 马义和 | Building member 3d print head with vibrating rod inside |
| CN106639500A (en) * | 2016-12-22 | 2017-05-10 | 广西建工集团第建筑工程有限责任公司 | One-time slip-form construction method for square variable-section multi-layer platform chimney under high air pressure |
| CN115288437A (en) * | 2022-07-29 | 2022-11-04 | 滕州建工建设集团有限公司 | Template mounting structure is used in construction of urea prilling tower |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485574A (en) * | 2013-10-08 | 2014-01-01 | 贵州开磷建设有限责任公司 | Method for constructing reinforced concrete structure of tower top of prilling tower |
| CN103485574B (en) * | 2013-10-08 | 2015-11-18 | 贵州开磷建设集团有限公司 | A kind of granulation tower tower top structure of reinforced concrete method |
| CN104594631A (en) * | 2015-02-05 | 2015-05-06 | 中化二建集团有限公司 | Construction process for constructing prilling tower spraying layer by slide mold device dragging construction platform |
| CN104594631B (en) * | 2015-02-05 | 2016-06-29 | 中化二建集团有限公司 | The construction technology of sliding form apparatus traction operation platform construction granulation tower spraying layer |
| WO2017008711A1 (en) * | 2015-07-13 | 2017-01-19 | 马义和 | Building member 3d print head with vibrating rod inside |
| US9895710B2 (en) | 2015-07-13 | 2018-02-20 | Yihe MA | Construction member with vibrating rod |
| CN106223469A (en) * | 2016-07-20 | 2016-12-14 | 中冶天工集团有限公司 | Tube structure roof boarding construction method and hang modular system |
| CN106639500A (en) * | 2016-12-22 | 2017-05-10 | 广西建工集团第建筑工程有限责任公司 | One-time slip-form construction method for square variable-section multi-layer platform chimney under high air pressure |
| CN106639500B (en) * | 2016-12-22 | 2019-01-11 | 广西建工集团第一建筑工程有限责任公司 | Slding form operation method of square variable-section multilayer platform chimney under high wind pressure |
| CN115288437A (en) * | 2022-07-29 | 2022-11-04 | 滕州建工建设集团有限公司 | Template mounting structure is used in construction of urea prilling tower |
| CN115288437B (en) * | 2022-07-29 | 2024-01-30 | 滕州建工建设集团有限公司 | Template mounting structure for urea prilling tower construction |
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