CN103061568A - Tapered hanging bracket high-position in-situ casting construction method of water tank of reverse taper shell heat-preservation water tower - Google Patents
Tapered hanging bracket high-position in-situ casting construction method of water tank of reverse taper shell heat-preservation water tower Download PDFInfo
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- CN103061568A CN103061568A CN2012105908466A CN201210590846A CN103061568A CN 103061568 A CN103061568 A CN 103061568A CN 2012105908466 A CN2012105908466 A CN 2012105908466A CN 201210590846 A CN201210590846 A CN 201210590846A CN 103061568 A CN103061568 A CN 103061568A
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Abstract
The invention relates to a construction method of a water tank of a water tower, specifically relates to a tapered hanging bracket high-position in-situ casting construction method of a water tank of a reverse taper shell heat-preservation water tower and aims at solving problems that by means of existing prefabricating lifting methods of water tanks of reverse taper shell heat-preservation water towers, construction periods are prolonged during construction, high-altitude in-situ constructing and formwork structures are complicated, and material consumption is high. The tapered hanging bracket high-position in-situ casting construction method includes steps of assembling of a water tank hanging bracket and an operation platform; installation of a lower taper shell template of the water tank; installation of steel bars; pouring of concrete; and removing of the template. Compared with existing construction methods, the tapered hanging bracket high-position in-situ casting construction method has the advantages that by means of the method of operation frame high-altitude installation and formwork casting, material wastage is reduced, operation space is saved, complicated operation of building a construction platform on the ground is avoided, and construction efficiencies are greatly improved.
Description
Technical field
The present invention relates to a kind of job practices of water tower water tank, be specially a kind of type Thermal Insulation Water Tower water tank and adopt the high-order cast-in-situ construction method of taper suspension.
Background technology
Usually adopt the method for prefabricated lifting with respect to present type Thermal Insulation Water Tower water tank, the characteristics such as water tank adopts high-order cast-in-place construction to have easy construction, and technique is advanced, and is safe and reliable.Traditional water tank adopts the method for prefabricated lifting usually, this method construction period very long (water tank intensity could promote after reaching 100%); Water tank promotes the impact be subjected to wind load large (wind-force greater than 5 grades time stop to promote), can not guarantee the continuance lifting water tank, has virtually prolonged the construction period.Because the recoil that the hydraulic system oil return produces easily makes water tank produce small crack, water tank antiseepage (leakage) requires more difficult up to standard prefabricated water tank in lifting process.Also there is a class technology in the prior art, it is exactly aerial cast-in-place technology, " low temperature Building technology " 198901, " inverted cone water tower water tank high-altitude cast-in-place construction and insulation " have been put down in writing in the literary composition, utilize the method for high-altitude formwork directly to build water tower aloft, the method take the die carrier technology more complicated, and directly set up waste material and man-hour from ground.
Summary of the invention
The cast-in-place formwork erecting structure complexity of building of defective and high-altitude that the present invention prolongs the construction period when adopting at present the method for prefabricated lifting to construct in order to solve the type Thermal Insulation Water Tower water tank, the problems such as consumptive material height provide a kind of type Thermal Insulation Water Tower water tank to adopt the high-order cast-in-situ construction method of taper suspension.
Job practices of the present invention is realized by following technical scheme: a kind of type Thermal Insulation Water Tower water tank adopts the high-order cast-in-situ construction method of taper suspension, step is: (1) water tank suspension and operating platform assembling, (2) the conical shell template is installed under the water tank, (3) reinforcement installation, (4) concreting, (5) form removable;
(1), water tank suspension and operating platform assembling
After water tower branch barrel has been constructed, before building the water tank ring flat-plate, even distribution of steel plate is embedded in the ring flat-plate outside, the uniform embedded bar in ring flat-plate top; After the ring flat-plate concrete has been built, remove the ring flat-plate external mold, with embedded bar steel ring is installed on the ring flat-plate, and firm welding; The ring flat-plate bottom is with annulus of reinforcing bar and pre-embedded steel slab welding formation, and it is firm then steel ring and annulus to be supported and weld with angle steel; Hang over hanger on the steel ring and be welded and fixed, then suspension is connected with hanger; Link to each other as support bar with longitudinal reinforcement between suspension and the suspension, suspension outward outstanding end radially links to each other with derrick with drag-line, be provided with at suspension 6 and utilize suspension to make radially keel, add hoop girt and oblique support bar, consist of the construction operation platform of a taper, utilize this operating platform to assemble the water tank bed die.
(2), lower conical shell template is installed
Water tank template is trapezoidal steel form, and according to outside dimension and radian in the lower conical shell, splicing forms the integral mold plate of a back taper mutually.Every template is provided with the lateral stiffening angle steel, and radially keel are radioactive ray and arrange; The template outside, and radially is connected with derrick with the wire rope drag-line to the stirrup member by the reinforcing bar makeup ring.
The vertical load of water tank bed die (member dead weight) is passed to a cylinder by the radially keel of bed die.Horizontal Tension (working load) then balances each other certainly by a series of hoop member.Under the condition of motive power, bed die still has the ability that keeps monolithic stability.
(3), reinforcement installation
Carry out warming plate and install and the warming plate finished product protection after the bed die assembling is finished, then carry out reinforcing bar and connect, reinforcing bar adopts the mode of overlap joint welding to connect, and weld length must meet code requirement.
(4) concreting
The water tank lower casing uses the C30 waterproof concrete, and impervious grade is p6, and its maximum water/binder ratio is no more than 0.6, and generally with less than 0.52, slump is that 3-5cm is advisable, (constuction joint of water tank lower casing and stack shell was installed expansion sealing strip before concreting).For guaranteeing the water proofing property of water tank, concrete continuously symmetry is built, and does not stay constuction joint, strictly controls slump, forms pitted skin dew muscle in order to avoid concrete flows pendant in casting process.Build for every layer and highly be 30cm-50cm.When building the water tank concrete, utilize the operating platform of stack shell sliding formwork, as concrete storage platform, then with chute concrete is delivered to respectively and built a little.
Concrete can not adopt manually and vibrate, and must adopt poker vibrator to vibrate.Vibrating should be closely knit, must not leak to shake, owe to shake.Strict control construction quality.
(5) form removable
5.1 during the form removable of water tank lower casing, first the colligation of steel form piecemeal is fixed on the middle ring beam railing, then remove the hoop stirrup that Ф 25 reinforcing bars are welded, remove again the fixedly connecting bolt between the adjacent steel template, the steel form piecemeal is transported to the hanging basket place, be transported to ground by derrick, the equipment that is carried to behind cleaning concrete residue is stacked the some keeping.
Compare with existing construction technology, the present invention has adopted the way of building at high-altitude fitting operation frame and formwork, has reduced spillage of material, has saved the operating space, has avoided ground to take the operation platform troublesome operation, and efficiency of construction improves greatly.
Description of drawings
Fig. 1 is water tank surface structure schematic diagram of the present invention,
Fig. 2 is water tank side structure schematic diagram of the present invention,
Fig. 3 is water tank taper suspension operation platform structure schematic diagram of the present invention
Fig. 4 is hanger tie point drawing.
Among the figure: 1-enters well, 3-water tank concrete, 4-hanger, 5-safety net, 6-suspension, 7-bamboo frame plate, 8-water tank template, 9-derrick, 10-reinforcing bar, 11-concrete pouring construction platform, 12-wire rope drag-line, 13-ring flat-plate, 14-reinforcing bar, 16-steel ring, 17-angle steel, 18-steel plate, 19-drag-line at water tower branch barrel, 2-water tank.
The specific embodiment
As schematically shown in Figure 1, 2, be water tank of the present invention (water tank) structural representation, such as Fig. 3,4 signals, the type Thermal Insulation Water Tower water tank adopts the high-order cast-in-situ construction method of taper suspension, step is: (1) water tank suspension and operating platform assembling, and the conical shell template is installed under (2) water tank, (3) reinforcement installation, (4) concreting, (5) form removable;
Concrete steps are as follows:
1, water tank suspension and operating platform assembling
1.1 after water tower branch barrel 1 has been constructed, before building the water tank ring flat-plate with 32 150*150*6 of steel plate 18(specification) evenly distributing is embedded in ring flat-plate 13 outsides, apart from ring flat-plate bottom 30cm, 32 φ 14 of ring flat-plate top uniform embedded bar 14(specification).
1.2 after the ring flat-plate concrete has been built, remove the ring flat-plate external mold, with pre-buried 32 φ 14 of reinforcing bar 14(specification) with steel ring 16(L80*8) sling and be installed on the ring flat-plate, and firm welding.Ring flat-plate 13 bottoms form an annulus with the reinforcing bar of a φ 25 and pre-buried steel plate 18 welding, then with steel ring 16 and annulus with angle steel 17(32 root L50*5) support and weld firm.
1.3 32 Pin hangers 4 (L50 * 5) are hung over (steel ring evenly is reserved with 32 circular holes) on the steel ring 16, and are welded and fixed.Then 32 Pin suspensions 6 (L50 * 5) are connected connection with hanger.Reinforcing bar with φ 20 between suspension 6 and the suspension 4 links to each other as support bar, suspension 6 outer outstanding ends radially link to each other with derrick 9 with drag-line 19, be provided with bamboo frame plate 7 at suspension 6, utilize suspension 6 to make radially keel, with 8 road φ, 20 hoop girts and φ 20 oblique support bars, and bamboo frame plate 7, the construction operation platform of a taper of formation utilizes this operating platform to assemble the water tank bed die.
2, lower conical shell template is installed
2.1 water tank template 8 for the trapezoidal steel form of typing, according to outside dimension and radian in the lower conical shell, splices the integral mold plate that forms a back taper mutually side by side.
2.2 described water tank template is comprised of 275 trapezoidal punching blocks of typing.Every template has 4 L40 * 4 lateral stiffening angle steel, and radially keel adopt L40 * 4 angle steel, is radioactive ray and arranges, maximum spacing is 700mm.
2.3 the water tank template outside, and radially is connected with derrick 9 with 2 roads (per pass 6 Ф 12) wire rope drag-line 12 to stirrup by 10 roads (2 road Ф, 20,8 road Ф 25) reinforcing bar 10 makeup rings.
2.4 the vertical load of water tank bed die (member dead weight) is passed to a cylinder by the radially keel of bed die.Horizontal Tension (working load) then balances each other certainly by a series of hoop member.Under the condition of motive power, bed die still has the ability that keeps monolithic stability.
3, reinforcement installation
Carry out warming plate and install and the warming plate finished product protection after the bed die assembling is finished, then carry out the water tower reinforcing bar and connect, reinforcing bar adopts the mode of overlap joint welding to connect, and weld length must meet code requirement.
4, concreting water tank concrete 3
Shell water tank concrete 3 uses the C30 waterproof concrete under the water tank, impervious grade is p6, and its maximum water/binder ratio should not surpass 0.6, generally with less than 0.52, slump is that 3-5cm is advisable, (constuction joint of water tank lower casing and stack shell was installed expansion sealing strip before concreting).For guaranteeing the water proofing property of water tank, concrete continuously symmetry is built, and does not stay constuction joint, strictly controls slump, forms pitted skin dew muscle in order to avoid concrete flows pendant in casting process.Build for every layer and highly be 30cm-50cm.When building the water tank concrete, utilize the operating platform of stack shell sliding formwork, as concrete storage platform, then with chute concrete is delivered to respectively and built a little.
Concrete can not adopt manually and vibrate, and must adopt poker vibrator to vibrate.Vibrating should be closely knit, must not leak to shake, owe to shake.Strict control construction quality.
5, form removable
5.1 during the form removable of water tank lower casing, first the colligation of steel form piecemeal is fixed on the middle ring beam railing, then remove the hoop stirrup that Ф 25 reinforcing bars are welded, remove again the fixedly connecting bolt between the adjacent steel template, the steel form piecemeal is transported to the hanging basket place, be transported to ground by derrick, the equipment that is carried to behind cleaning concrete residue is stacked the some keeping.
5.2 during form removable, forbid to use sledgehammer, the operating platform cope match-plate pattern will in time be transported to ground stacking, the platform cope match-plate pattern must not stack above three layers.Form removal is in case of resting midway, should with become flexible, that the template of unsettled, crane barge or support carry out temporary supporting is firm.Movable part is needed once to remove.
In the present embodiment, the selection of above-mentioned each data can guarantee that the operating platform security performance that this construction obtains reaches optimum state, guarantees safe construction and construction quality.
Claims (4)
1. a type Thermal Insulation Water Tower water tank adopts the high-order cast-in-situ construction method of taper suspension, it is characterized in that step is: (1) water tank suspension and operating platform assembling, the conical shell template is installed under (2) water tank, (3) reinforcement installation, (4) concreting, (5) form removable;
(1), water tank suspension and operating platform assembling
After water tower branch barrel (1) has been constructed, be embedded in ring flat-plate (13) outside, the uniform embedded bar in ring flat-plate (13) top (14) building front steel plate (18) is evenly distributed of water tank ring flat-plate (13); After the ring flat-plate concrete has been built, remove the ring flat-plate external mold, with embedded bar steel ring (16) is installed on the ring flat-plate (13), and firm welding; The ring flat-plate bottom forms an annulus with reinforcing bar and pre-embedded steel slab (18) welding, and it is firm then steel ring (16) and annulus to be supported and weld with angle steel (17); Hanger (4) is hung over steel ring (16) goes up and be welded and fixed, then suspension (6) is connected 4 with hanger) connect; Link to each other as support bar with longitudinal reinforcement between suspension and the adjacent suspension, suspension outward outstanding end radially links to each other with derrick (9) with drag-line (19), be provided with at suspension (6) and utilize suspension to make radially keel, add hoop girt and oblique support bar, consist of the construction operation platform of a taper, utilize this operating platform to assemble the water tank bed die;
(2), lower conical shell template is installed
Water tank template (8) is trapezoidal steel form, and according to outside dimension and radian in the lower conical shell, splicing forms the integral mold plate of a back taper mutually;
Every template is provided with the lateral stiffening angle steel, and radially keel are radioactive ray and arrange; The template outside, and radially is connected with derrick (9) with wire rope drag-line (12) to stirrup (10) member by the reinforcing bar makeup ring;
(3), reinforcement installation
Carry out warming plate and install and the warming plate finished product protection after the bed die assembling is finished, then carry out reinforcing bar and connect, reinforcing bar adopts the mode of overlap joint welding to connect,
(4) concreting;
(5) form removable.
2. type Thermal Insulation Water Tower water tank according to claim 1 adopts the high-order cast-in-situ construction method of taper suspension, it is characterized in that: in (4) concreting, shell water tank concrete (3) uses the C30 waterproof concrete under the water tank, impervious grade is p6, its maximum water/binder ratio is no more than 0.6, and slump is 3-5cm.
3. type Thermal Insulation Water Tower water tank according to claim 1 adopts the high-order cast-in-situ construction method of taper suspension, and it is characterized in that: water tank template (8) is trapezoidal steel form, mutually splices side by side the integral mold plate that forms a back taper.
4. type Thermal Insulation Water Tower water tank according to claim 1 adopts the high-order cast-in-situ construction method of taper suspension, it is characterized in that: water tank template (8) outside, and radially is connected with derrick (9) with 2 road wire rope drag-lines (12) to stirrup by 10 road reinforcing bar (10) makeup rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210590846.6A CN103061568B (en) | 2012-12-31 | 2012-12-31 | Tapered hanging bracket high-position in-situ casting construction method of water tank of reverse taper shell heat-preservation water tower |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210590846.6A CN103061568B (en) | 2012-12-31 | 2012-12-31 | Tapered hanging bracket high-position in-situ casting construction method of water tank of reverse taper shell heat-preservation water tower |
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| CN103061568A true CN103061568A (en) | 2013-04-24 |
| CN103061568B CN103061568B (en) | 2015-02-04 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291116A (en) * | 2013-05-20 | 2013-09-11 | 中国十五冶金建设集团有限公司 | Grid-type formwork supporting and operating platform for construction of water tank on top of inverted-cone water tower |
| CN104746644A (en) * | 2013-12-26 | 2015-07-01 | 青岛安装建设股份有限公司 | Internal and external double annular steel tube support seat |
| CN107313591A (en) * | 2017-09-05 | 2017-11-03 | 吕洁 | Kiloton water tower construction method |
| CN113882663A (en) * | 2021-10-18 | 2022-01-04 | 中国二十冶集团有限公司 | Template support device that encorbelments of water tower water tank |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2119460U (en) * | 1991-09-28 | 1992-10-21 | 福建省第二建筑工程公司 | Assembled permanent reinforced concrete form |
| CN101634197A (en) * | 2009-07-17 | 2010-01-27 | 中冶实久建设有限公司 | Novel construction method for hoisting reverse cone-shape water-tower water tank |
| CN101736904A (en) * | 2009-12-10 | 2010-06-16 | 中冶实久建设有限公司 | Method for lifting inverted cone shell water tank of reinforced concrete water tower |
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2012
- 2012-12-31 CN CN201210590846.6A patent/CN103061568B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2119460U (en) * | 1991-09-28 | 1992-10-21 | 福建省第二建筑工程公司 | Assembled permanent reinforced concrete form |
| CN101634197A (en) * | 2009-07-17 | 2010-01-27 | 中冶实久建设有限公司 | Novel construction method for hoisting reverse cone-shape water-tower water tank |
| CN101736904A (en) * | 2009-12-10 | 2010-06-16 | 中冶实久建设有限公司 | Method for lifting inverted cone shell water tank of reinforced concrete water tower |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291116A (en) * | 2013-05-20 | 2013-09-11 | 中国十五冶金建设集团有限公司 | Grid-type formwork supporting and operating platform for construction of water tank on top of inverted-cone water tower |
| CN103291116B (en) * | 2013-05-20 | 2015-09-02 | 中国十五冶金建设集团有限公司 | For the netted shuttering supporting operating platform of construction of water tank on top of inverted-cone water tower |
| CN104746644A (en) * | 2013-12-26 | 2015-07-01 | 青岛安装建设股份有限公司 | Internal and external double annular steel tube support seat |
| CN104746644B (en) * | 2013-12-26 | 2018-01-02 | 青岛安装建设股份有限公司 | A kind of internal and external double-circular shape steel pipe bearing |
| CN107313591A (en) * | 2017-09-05 | 2017-11-03 | 吕洁 | Kiloton water tower construction method |
| CN107313591B (en) * | 2017-09-05 | 2019-08-13 | 温州焕宏纺织品有限公司 | Kiloton water tower construction method |
| CN113882663A (en) * | 2021-10-18 | 2022-01-04 | 中国二十冶集团有限公司 | Template support device that encorbelments of water tower water tank |
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| CN103061568B (en) | 2015-02-04 |
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Inventor after: Qin Lilin Inventor after: Wang Zhiqiang Inventor after: Bai Xinghai Inventor after: Wu Peng Inventor after: Han Zhansheng Inventor after: He Wei Inventor before: Hao Yinghua Inventor before: Wang Zhiqiang Inventor before: Bai Xinghai Inventor before: Wu Peng Inventor before: Han Zhansheng Inventor before: He Wei |
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