CN208455910U - Large-span hemispherical reinforced concrete dome structure and template system thereof - Google Patents
Large-span hemispherical reinforced concrete dome structure and template system thereof Download PDFInfo
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- CN208455910U CN208455910U CN201820948319.0U CN201820948319U CN208455910U CN 208455910 U CN208455910 U CN 208455910U CN 201820948319 U CN201820948319 U CN 201820948319U CN 208455910 U CN208455910 U CN 208455910U
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- dome
- template
- cornice
- waist rail
- template system
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- 239000011150 reinforced concrete Substances 0.000 title abstract description 5
- 239000004567 concrete Substances 0.000 claims description 30
- 229910000831 Steel Inorganic materials 0.000 claims description 21
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- 238000007789 sealing Methods 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 18
- 238000000465 moulding Methods 0.000 abstract description 5
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
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Abstract
The utility model relates to a large-span hemisphere reinforced concrete dome structure and template system thereof, this dome structure include hemispherical reinforced concrete dome, and the dome links to each other and supports on the pitched roof with peripheral pitched roof, and the dome bottom is provided with bottom waist rail with pitched roof hookup location, the top of dome upwards is provided with the eaves mouth perpendicularly. The utility model discloses guaranteed structure bulk strength, stability and outside molding demand, reduced the construction degree of difficulty of dome simultaneously, improved the efficiency of construction. The utility model discloses a template system has the security height, the shaping is effectual and the advantage of saving the cost, reduces later stage repair cost.
Description
Technical field
The utility model relates to the realm of building construction, and in particular to semi-spherical dome structure and its formwork for placing.
Background technique
In recent years, the European style in west and the traditional architectural forms of China have become the trend mode of domestic construction,
Dome is handsome in appearance, is the combination of Chinese classical architecture and Western-style religious architecture style, by the favor of people.
Most of construction material anti-pressure ability is strong currently on the market, and shearing resistance, bending resistance, the ability of tension are poor, and dome can
Upper load is switched to the axial compression stress " encircleed ", draws, cut, curved stress without generation, a large amount of construction material can be saved,
With beautiful and energy-efficient two-fold advantage.
However since dome structure surface is cambered surface, using conventional method construction operation difficulty high, formwork edge joint it is not tight,
Concrete appearance Forming Quality is poor, load suffered by form bracing system is big, safety is difficult to ensure.
Utility model content
In view of the deficiencies of the prior art, low, construction that the problem to be solved by the utility model is to provide a kind of construction adults
Difficulty is small and the large-span steel-reinforced concrete dome structure and its construction method of construction quality and safety can be effectively ensured.
A kind of large span hemispherical armored concrete dome structure, including hemispheric armored concrete dome, dome with
The pitched roof on periphery is connected and is supported on pitched roof, and dome bottom and pitched roof link position are provided with bottom waist rail, institute
The top for stating dome is provided with cornice vertically upward.
The cornice is in tubular, outer diameter 2500mm~3000mm, wall thickness 500mm~800mm, height 0.5m~1m.
The bottom waist rail is arranged circumferentially along dome bottom outside, width 1000mm~1300mm, and height 1200mm~
1800mm。
A kind of template system poured applied to the large span hemispherical armored concrete dome structure, including template
And supporting frame, the template include outside waist rail template, vault wall form, cornice exterior sheathing and the dome inner template of inside,
Cornice inner template.
The waist rail template is by diagonal brace rod piece vertical support at Sloping roof edge；
The dome inner template branch is located at the top of supporting frame.
The vault wall form is by sealing up screw and outer keel drawknot on the outside of dome inner template, outside waist rail template and cornice
Between template.
The cornice exterior sheathing and cornice inner template are located at vault wall form and dome inner template by through-wall bolt drawknot branch
Top.
Support frame as described above body be all round victory scaffold, including be intervally arranged supported rod erecting, be connected between supported rod erecting
Horizon bar and the vertical bridging that is connected on supported rod erecting.
Horizontal cross brace is also connected between the supported rod erecting.
Support frame as described above body further include be arranged in double oblique steel pipe at the top of supported rod erecting, it is oblique be connected to it is double oblique
Diagonal brace between steel pipe and dome inner template.
It is one group that the double oblique steel pipe is double, is arranged along face interval on the inside of dome, and thinks bottom waist rail by cornice
It is obliquely installed.
Outer keel and back cord are connected in turn between the top and dome inner template of the diagonal brace.
The direction of warp and weft of the template carries out grooving processing every 50mm, and cutting groove depth is not more than the 1/3 of plate thickness.
Prolong its circumferential, uniform intervals in the middle part of the vault wall form to be provided with and pour mouth.
The size range for pouring mouth 126 is 300mm~600mm, and spacing is 1m~2m.
The utility model has the beneficial effects that
The utility model devises a kind of large-span domes structure, in order to guarantee structure integral strength, stability and outside
Moulding demand, dome bottom and around add bottom waist rail between Sloping roof, ensure that the dome structure of after-pouring and first apply
Bonding strength between the Sloping roof of work；While in order to reduce the difficulty of construction of dome, construction efficiency is improved, dome is changed
Top design is designed to eave structure, convenient for top concrete discharging, ensure that the Forming Quality at closing in position.
The template system of the utility model with high security, good forming effect and the advantages of save the cost: use steel pipe
Fastener type expires support system of the hall frame as entire dome roofing；Keel and back cord of 48 × 3.5 steel pipe of Φ as template are selected,
Increase compared to flitch keel globality and rigidity；Using chute casting concrete, concrete free-falling height is controlled；Using pre-
Pallet, accuracy to size are high；Joint-cutting is carried out in the inside of template, is convenient for template bending process；Self-compacting concrete is selected to pour
It builds, it is ensured that molding effect；Template is assembled using the double-deck circular formwork, and edge joint position is smoothed out using putty filling, mortar leakage prevention,
Reduce later period renewal expense.
Detailed description of the invention
Fig. 1 is the dome structure schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of the formwork erection of the utility model.
Fig. 3 is the structural schematic diagram of the template system of the utility model.
Fig. 4 is the structural schematic diagram of the template system node of the utility model.
Fig. 5 is the structural schematic diagram of the utility model moulding by casting.
Fig. 6 is the construction process schematic diagram of the utility model.
In figure, 1- dome；2- Sloping roof；3- cornice；4- through-wall bolt；The double oblique steel pipe of 5-；6- diagonal brace；7- is vertically cut
Knife support；8- horizontal cross brace；9- supported rod erecting；10- horizon bar；11- outer keel；12- template；121- waist rail template；122- vault
Wall form；123- dome inner template；124- cornice exterior sheathing；125- cornice inner template；126- pours mouth；13- formwork edge joint；
14- sealing up screw；15- back cord；16- keelson；The bottom 17- waist rail.
Specific embodiment
Referring to shown in Fig. 1, Fig. 5, this large span hemispherical armored concrete dome structure, including hemispheric reinforcing bar are mixed
Solidifying soil dome, dome 1 are connected with the pitched roof 2 on periphery and are supported on pitched roof, dome bottom and pitched roof link position
It is provided with bottom waist rail 17, the top of the dome is provided with cornice 3 vertically upward.
The cornice 3 is in tubular, and internal diameter 2120mm, outer diameter 2720mm, height 0.8m, wherein structure top mark is high
22.287m, bottom absolute altitude 21.487m,；The bottom waist rail 17 is arranged circumferentially along dome bottom outside, width range 1120mm,
Height 1470mm, the wherein high 19.975m of structure top mark, bottom absolute altitude 18.505m.
It is shown in Figure 2, this template poured applied to the large span hemispherical armored concrete dome structure
System, including template 12 and supporting frame, the waist rail template 121 of the template 12 including outside, vault wall form 122, outside cornice
Template 124 and the dome inner template 123 of inside, cornice inner template 125；The waist rail template 121 is vertically propped up by diagonal brace rod piece
Support is at Sloping roof edge；The dome inner template 123 is located at the top of supporting frame；The vault wall form 122 passes through sealing spiral shell
Bar 14 and 11 drawknot of outer keel are on the outside of dome inner template, between waist rail template 121 and cornice exterior sheathing 124；Outside the cornice
Template 124 and cornice inner template 125 are located at the upper of vault wall form 122 and dome inner template 123 by 4 drawknot branch of through-wall bolt
Side；Prolong its circumferential, uniform intervals and be provided with and pour mouth 126 in the middle part of the vault wall form 122；The size for pouring mouth 126
Range is 300mm~600mm, and spacing is 1m~2m.
It is shown in Figure 3, support frame as described above body be all round victory scaffold, including be intervally arranged supported rod erecting 9, be connected to
Horizon bar 10 between supported rod erecting and the vertical bridging 7 being connected on supported rod erecting；Between between the supported rod erecting 9
It is also connected with horizontal cross brace 8；Support frame as described above body further includes the double oblique steel pipe 5 that the top of supported rod erecting 9 is arranged in, oblique
The diagonal brace 6 being connected between double oblique steel pipe 5 and dome inner template 123；It is one group that the double oblique steel pipe 5 is double,
Along face interval setting on the inside of dome, and think that bottom waist rail is obliquely installed by cornice；The top of the diagonal brace 6 and dome inner template
It is connected with outer keel 11 and back cord 15 between 123 in turn.
Shown in Figure 4, the direction of warp and weft of the template carries out grooving processing every 50mm, and shown cutting groove depth is not more than
The 1/3 of plate thickness.
A kind of construction method of large-span steel-reinforced concrete dome structure, construction process is as shown in fig. 6, include BIM mould
Type production, put dome control line, full framing is set up, dome keel installation, template assembly, concreting, mainly
Step operation main points are as follows:
1. putting dome control line
Dome floor projection line, including centre point, dome flat segments floor projection line, dome are popped up on lower layer's concrete building plate
Bottom inner beam side floor projection line and dome bottom sides 200mm control line.
Before the form work engineering of roof structure starts construction, it is desirable that carry out the dispensing of control line on floorboard；Simultaneously
It is required that the contour line of Sloping roof horizontal layout is launched out.Situation is marked according to the absolute altitude of construction drawing, it is each to calculate roofing
The absolute altitude numerical value of a angle point is simultaneously labeled on the corresponding position of flooring Sloping roof outline projection line, to the oblique room being labeled on floor
The each angle point in face is completed absolute altitude and is verified one by one, takes in order to which the steel tube poles that worker chooses appropriate length carry out full hall frame
And if then guaranteeing the control for installing absolute altitude to Sloping roof stay in place form.
2. all round victory scaffold building
Support system using all round victory scaffold as entire dome roofing, all round victory scaffold and periphery form bracing
Frame is an entirety, guarantees frame body globality, and scaffolding height meets related specification requirement.
Spacing of all round victory scaffold support upright bar away from beam side, column side is 300mm；Supported rod erecting spacing 900mm, step pitch
1500mm, horizontal, the vertical both direction of horizon bar draw logical setting, and supported rod erecting is liftoff, and one of level respectively be arranged in the place 200mm both direction
It sweeps the floor bar；Supported rod erecting spreading is forbidden to overlap, it is necessary to be connected using sleeve couple, the banjo fixing butt jointing of two adjacent upright must not be same
In step pitch, and the distance that banjo fixing butt jointing is vertically staggered is not preferably less than 500mm, and each connector center is not preferably greater than step pitch away from host node
1/3；It to the continuous vertical bridging on top, is cut in supporting frame outer periphery and the every 5m~8m of internal vertical, horizontal, setting the bottom of by
It is 5m~8m that knife, which supports width,；Scissors strut member bottom end is held out against with ground, and angle is 45 °~60 °；The intersection point at the top of vertical bridging
Plane should be arranged continuous horizontal bridging, horizontal cross brace to frame body baseplane distance and horizontal cross tie distance no more than
8m。
500mm is not to be exceeded in the length that supported rod erecting stretches out top layer horizon bar center line to supporting point, and the stretching of jacking is long
Degree is no more than 200mm；Horizontal steel tube (adding two jackings, upright bars in the middle part of horizon bar) is set up along the upright bar of beam two sides, for putting
Put beam bottom flitch；Horizontal cross brace need to be arranged in bottommost on the inside of dome, and medium height position adds horizontal cross brace；Dome is outer double
Row's protective frame installs simultaneously, and outrigger completely hangs safety net.
3. dome keel, back cord are installed
The sequence of installation are as follows: the fixation of diagonal brace → inside dimension keelson fixes → and border longitude back cord fixes → micro-adjustment
Body radian and reinforcing.
The diagonal brace for wherein setting up keelson is connect with inside all round victory scaffold with rotary buckle, must not be less than three companies
Contact；Latitude keelson determines the radian of steel pipe, same absolute altitude two according to different location using the steel pipe of double Φ 48 × 3.6
Root steel pipe is integral with 4 welding of Φ 22~25 of steel scrap in site muscle head, scene processing；Longitude back cord, using single Φ 48 × 3.6
Steel pipe, 250~300mm of spacing is welded and fixed with main joist, by calculating, determines the radian of steel pipe, scene processing.
4. template assembly
Template use 18mm thickness wood glue plate, for hyperboloid is processed at plank sheathing scene, along template direction of warp and weft every
50mm carries out grooving processing, and template surface is slightly cut between slot and slot, guarantees that template globality, radian are met the requirements, and not
The integral strength of template must be destroyed.
Construction process: line setting → laying template → fastening template and back cord with nails → drills bolt hole → template
Piece putty repairing → reinforcing bar is bound → inserts waterproof, fixed through-wall bolt → paving template → fastening bolt → examination.
Construction technology main points are as follows:
(1) inner and outer template is all made of amplification sample loading mode in-situ precast, segmentation spelling, and each section of height is according to glued board
Specification determines the arc length of dome；It is connected between external mold and internal model by Three-section water stop split bolt；Before every section of template is installed,
The center of circle for first finding out every section of template or more both sides, is reinforced, the center of circle is immovable, then will be according to practical setting-out on full hall frame
The good fragment template of spelling successively carries out on-site assembly, connect with template back arris, according to the weft at the place of per pass split bolt
Radius of circle is corrected, fixes, it is ensured that the accuracy of template radian.
(2) position of formwork edge joint 13 is smoothed out using putty, prevents spillage in concreting process, reduce piece and after
The patch work of phase top surface.
(3) elevation location setting pours mouth and the mouth that vibrates in the middle part of dome when exterior sheathing installs, and dimension of opening 400mm ×
400mm, elevation location spacing 1.5m is arranged 1 in the middle part of the dome, so as to extended under concrete discharging, vibrating spear dome bottom and
Whether closely knit observe Concrete Filled, after concreting to mouthful position of vibrating, will vibrate a mouthful position external mold closing, continue to pour
Dome top concrete pours mouth closing template and prepares in advance, and off-period control is completed within half an hour, guarantees that upper and lower level is mixed
Solidifying soil mutually bonding is close, prevents cold seam.
(4) double template is fixed using Three-section water stop Screw arbor with nut at both-ends, through-wall bolt inside and outside, one of broadwise spacing 500.Spiral shell
Bar uses cement waterproofing mortar that 108 glue is added to block after removing.
(5) 800 high cornice positions of top are hung mould to support and are reinforced.
5. concreting
Since the particularity of dome later period finishing reduces later period skin patching to guarantee dome concrete impression quality, mix
Solidifying soil uses self-compacting concrete, is suitably added water-reducing agent and flyash under the premise of guaranteeing concrete strength to reduce water
Mud dosage reduces the heat of hydration.Concrete slump control pours sequence by bottom to height, border circulation pours in 120 ~ 140MM.
Form is poured to pour in such a way that tower crane adds chute, concrete from suspension bucket mouth fall freely incline drop height degree must not
More than 2m.
Lower concrete is poured by reserved opening in the middle part of template, is vibrated, molding outside mouthful position that will vibrate after the completion of pouring
It closes, continues to pour dome top concrete.
Construction joint is set if you need to stay, in new-old concrete interface position, buries 4 × 300 steel plate for sealing water.
After the completion of concreting, for the moisture loss and plastic cracking for reducing concrete, it is necessary to just be carried out since concrete enters mould
Wet curing preferably takes film to cover, and water in time, so that concrete can radiate in time, curing age should not be less than after concrete initial set
14 days；Upper layer striking time should be greater than 3 days, after best 7 days.
Claims (9)
1. a kind of large span hemispherical armored concrete dome structure, it is characterised in that: including hemispheric armored concrete vault
Top, dome (1) are connected with the pitched roof (2) on periphery and are supported on pitched roof, and dome bottom is installed with pitched roof connection position
It is equipped with bottom waist rail (17), the top of the dome is provided with cornice (3) vertically upward.
2. large span hemispherical armored concrete dome structure according to claim 1, it is characterised in that: the cornice
It (3) is in tubular, outer diameter 2500mm~3000mm, wall thickness 500mm~800mm, height 0.5m~1m.
3. large span hemispherical armored concrete dome structure according to claim 1, it is characterised in that: the bottom waist
Beam (17) is arranged circumferentially along dome bottom outside, width 1000mm~1300mm, height 1200mm~1800mm.
4. a kind of pour applied to large span hemispherical armored concrete dome structure described in claims 1 to 3 any one
Template system, including template (12) and supporting frame, it is characterised in that: the template (12) includes the waist rail template in outside
(121), the dome inner template (123), cornice inner template (125) of vault wall form (122), cornice exterior sheathing (124) and inside；
The waist rail template (121) is by diagonal brace rod piece vertical support at Sloping roof edge；
Dome inner template (123) branch is located at the top of supporting frame；
The vault wall form (122) is by sealing up screw (14) and outer keel (11) drawknot on the outside of dome inner template, waist rail mould
Between plate (121) and cornice exterior sheathing (124)；
The cornice exterior sheathing (124) and cornice inner template (125) are located at vault wall form by through-wall bolt (4) drawknot branch
(122) and the top of dome inner template (123).
5. template system according to claim 4, it is characterised in that: support frame as described above body is all round victory scaffold, including
It the supported rod erecting (9) that is intervally arranged, the horizon bar (10) being connected between supported rod erecting and is connected to perpendicular on supported rod erecting
To bridging (7).
6. template system according to claim 5, it is characterised in that: be also connected between the supported rod erecting (9)
Horizontal cross brace (8).
7. according to template system described in claim 4 to 6 any one, it is characterised in that: support frame as described above body further includes setting
It sets the double oblique steel pipe (5) at the top of supported rod erecting (9), oblique be connected to double oblique steel pipe (5) and dome inner template
(123) diagonal brace (6) between；
It is one group that the double oblique steel pipe (5) is double, is arranged along face interval on the inside of dome, and thinks that bottom waist rail inclines by cornice
Tiltedly setting；
Outer keel (11) and back cord (15) are connected in turn between the top and dome inner template (123) of the diagonal brace (6).
8. template system according to claim 4, it is characterised in that: the direction of warp and weft of the template is cut every 50mm
Slot processing, cutting groove depth are not more than the 1/3 of plate thickness.
9. template system according to claim 4, it is characterised in that: prolong in the middle part of the vault wall form (122) it is circumferential,
Uniform intervals, which are provided with, pours mouth (126)；
The size range for pouring mouth (126) is 300mm~600mm, and spacing is 1m~2m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820948319.0U CN208455910U (en) | 2018-06-20 | 2018-06-20 | Large-span hemispherical reinforced concrete dome structure and template system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820948319.0U CN208455910U (en) | 2018-06-20 | 2018-06-20 | Large-span hemispherical reinforced concrete dome structure and template system thereof |
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| Publication Number | Publication Date |
|---|---|
| CN208455910U true CN208455910U (en) | 2019-02-01 |
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| CN201820948319.0U Expired - Fee Related CN208455910U (en) | 2018-06-20 | 2018-06-20 | Large-span hemispherical reinforced concrete dome structure and template system thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108678258A (en) * | 2018-06-20 | 2018-10-19 | 中国建筑局（集团）有限公司 | Large-span hemispherical reinforced concrete dome structure and construction method thereof |
| CN110306782A (en) * | 2019-06-14 | 2019-10-08 | 宋丰伟 | Reactor building shell dome template and its assembling and construction method |
| CN110630007A (en) * | 2019-09-20 | 2019-12-31 | 中国核工业华兴建设有限公司 | Large template structure for construction of hemispherical dome of nuclear power station and construction method |
| CN110761411A (en) * | 2019-11-11 | 2020-02-07 | 中国葛洲坝集团第二工程有限公司 | Large-span suspended spherical dome concrete pouring method |
| CN113107188A (en) * | 2021-04-15 | 2021-07-13 | 中信国安建工集团有限公司 | Large-diameter spherical concrete roof construction and construction supporting template and construction method thereof |
-
2018
- 2018-06-20 CN CN201820948319.0U patent/CN208455910U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108678258A (en) * | 2018-06-20 | 2018-10-19 | 中国建筑局（集团）有限公司 | Large-span hemispherical reinforced concrete dome structure and construction method thereof |
| CN108678258B (en) * | 2018-06-20 | 2024-04-19 | 中国建筑一局(集团)有限公司 | Large-span hemispherical reinforced concrete dome structure and construction method thereof |
| CN110306782A (en) * | 2019-06-14 | 2019-10-08 | 宋丰伟 | Reactor building shell dome template and its assembling and construction method |
| CN110630007A (en) * | 2019-09-20 | 2019-12-31 | 中国核工业华兴建设有限公司 | Large template structure for construction of hemispherical dome of nuclear power station and construction method |
| CN110761411A (en) * | 2019-11-11 | 2020-02-07 | 中国葛洲坝集团第二工程有限公司 | Large-span suspended spherical dome concrete pouring method |
| CN113107188A (en) * | 2021-04-15 | 2021-07-13 | 中信国安建工集团有限公司 | Large-diameter spherical concrete roof construction and construction supporting template and construction method thereof |
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Granted publication date: 20190201 |