CN109098432A - A kind of hoisting type is adjustable elevator shaft template and its construction technology - Google Patents
A kind of hoisting type is adjustable elevator shaft template and its construction technology Download PDFInfo
- Publication number
- CN109098432A CN109098432A CN201810999410.XA CN201810999410A CN109098432A CN 109098432 A CN109098432 A CN 109098432A CN 201810999410 A CN201810999410 A CN 201810999410A CN 109098432 A CN109098432 A CN 109098432A
- Authority
- CN
- China
- Prior art keywords
- pit shaft
- internal model
- formwork
- stupefied
- template
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G9/00—Forming or shuttering elements for general use
- E04G9/10—Forming or shuttering elements for general use with additional peculiarities such as surface shaping, insulating or heating, permeability to water or air
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
- E04G11/08—Forms, which are completely dismantled after setting of the concrete and re-built for next pouring
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
- E04G17/14—Bracing or strutting arrangements for formwalls; Devices for aligning forms
Abstract
This application provides a kind of adjustable elevator shaft template of hoisting type and its construction technologies, comprising: base platform；Pit shaft internal model is set on the upside of base platform；The pit shaft internal model includes: formwork, totally eight pieces, is set to four side all around, every side is equipped with two pieces；Steel back is stupefied, is set on the inside of formwork in " netted "；Folding Corner Block List Representation, totally ten six pieces, set on the two sides of every piece of formwork；Right angle core ribbon is set to the stupefied junction of steel back；Adjustable support bar is pierced by that the steel back is stupefied in " cross ", the two sides of end and two pieces of dog's-ear module-articulations；The formwork and left and right folding Corner Block List Representation are bonded using special modified epobond epoxyn, and the folding Corner Block List Representation at four angles of the pit shaft internal model is connected using articulated manner.The application has not only saved project cost, shortens the construction period, improves elevator metope concrete and forms whole perception, and reduces pit shaft perpendicularity deviation and internal diameter deviation, creates good condition for elevator installation.
Description
Technical field
This application involves the realm of building construction, more particularly to a kind of adjustable elevator shaft template of hoisting type and its construction work
Skill.
Background technique
Channel of the elevator shaft as lifting type elevator, narrow due to space during construction, difficulty of construction is in
The growth of geometric multiple.The conventional means of building field carry out assembled mould by way of taking and tearing scaffold and steel pipe open at present
Plate, then in building upwards in layer, each layer is required to build primary, and difficulty of construction greatly increases, and construction efficiency
And its it is low.It is all made of in disassembly process and is manually operated, considerably increase artificial amount, the surface of pit shaft is also tended to make
The entirety of pit shaft metope is caused since the installation of every layer of template has certain scale error at the defect for being difficult to retrieve
Verticality and flatness are difficult to ensure.
Summary of the invention
(1) technical problems to be solved
In view of above-mentioned technical problem, this application provides a kind of adjustable elevator shaft template of hoisting type and its construction technology,
Flexibly, operation tears scaffold open without taking on base platform for elevator shaft internal model that hoisting type is adjustable assembly and disassembly, reduces steel pipe, artificial
Usage amount, improve concrete surface perception and degree of gravity vertical forwall surface and flatness qualification rate, reduce the later period pick chisel concrete it is added
Artificial amount.
(2) technical solution
This application provides a kind of adjustable elevator shaft templates of hoisting type, comprising:
Base platform；
Pit shaft internal model is set on the upside of base platform；The pit shaft internal model includes:
Formwork, is set to four side all around by totally eight pieces, and every side is equipped with two pieces；
Steel back is stupefied, is set on the inside of formwork in " netted "；
Folding Corner Block List Representation, totally ten six pieces, set on the two sides of every piece of formwork；
Right angle core ribbon is set to the stupefied junction of steel back；
Adjustable support bar is pierced by that the steel back is stupefied in " cross ", the two sides of end and two pieces of folding Corner Block List Representations
Hingedly；
The formwork and left and right folding Corner Block List Representation are bonded using special modified epobond epoxyn, the pit shaft internal model
The folding Corner Block List Representation at four angles is connected using articulated manner.
In some embodiments of the present application, the pit shaft internal model, pit shaft external mold and steel back are stupefied by connecting bolt-through
It is fixed.
In some embodiments of the present application, the formwork and folding Corner Block List Representation are using flyash, gelating material, fiber
Insulation material, foaming agent and water are hybridly prepared into slurry, form module software after fermentation, are then placed into steam-cured system in pre- formwork supporting plate
It forms.
In some embodiments of the present application, the adjustable support bar is set on the center line of the pit shaft internal model.
In some embodiments of the present application, the cross section of the folding Corner Block List Representation is right angled triangle, longer right angle
Side belongs to pit shaft internal model outer surface on one side, and the stupefied vertical view face of the steel back is isosceles trapezoid, and bottom length is less than pit shaft internal model
The stupefied length of two steel backs of side length.
In some embodiments of the present application, the adjustable support bar with the steel back is stupefied is fixedly connected.
In some embodiments of the present application, cross section is square when the pit shaft internal model is in running order.
In some embodiments of the present application, construction technology the following steps are included:
S1: wearing four Φ 32L steel bars, and the 250mm that extends outwardly from outside to inside on well bore wall, and lifting pedestal is flat
Platform promotes base platform in place.After base platform makes a decision, timber wedge Steady base platform, four flank side surfaces and wall are set in surrounding
Body space is respectively 25mm.
S2: on base platform by pit shaft internal model be mutually related components installation form a whole, through pit shaft internal model
The two-way adjustable support rod being equipped with is adjusted to position, it is ensured that pit shaft internal model is vertical, upright, alignment axis and central point, in well
Then cylinder internal model and pit shaft external mold inner surface brushing interleaving agent are fixed pit shaft internal model and pit shaft external mold with connection bolt.
S3: the model that pours formed to pit shaft internal model and pit shaft external mold carries out pouring concrete, when borehole wall concrete reaches some strength
When, it unclamps external mold in pit shaft and connects bolt, operate two-way adjustable support rod, so that template is detached from concrete 40mm or more, be convenient to clean mould
The concrete of plate attachment, then coats interleaving agent, continues to use.
S4: removing timber wedge, and base platform and the lifting of pit shaft internal model are continued to repeat the above steps.
In some embodiments of the present application, interleaving agent described in the step S2 by aqueous organic fluorine emulsion preparation and
At.
In some embodiments of the present application, L-type steel muscle described in the step S1 is after entering subsequent work circulation
It needs to be inserted in connection ad hoc at 560mm under lower first floor face in the screw hole of external mold, and need to be in same level.
(3) beneficial effect
It can be seen from the above technical proposal that the application at least has the advantages that one of them:
(1) formwork in the application is to be with flyash, gelating material, fiber thermal insulation material, foaming agent with folding Corner Block List Representation
Raw material is made, and has good anti-folding, non-deformability, while meeting rigidity and intensity requirement, also has higher
Thermal insulation property, can adapt in various evils slightly environment.
(2) as long as when the application demoulding operates two-way adjustable support rod, pit shaft internal model and the borehole wall are disengaged, convenient disassembly,
It is not required to tap, does not injure concrete.
(3) steel back of the application is stupefied can form formwork and folding Corner Block List Representation under the action of two-way adjustable support rod
Pit shaft internal model expand to quadrangle Founder, therefore can effectively ensure the Founder of pit shaft.
(4) the application includes saving recruitment compared with conventional combination assembly steel form, reduces material consumption, reduces expense,
Worker operates on base platform, has both saved to take and has torn scaffold expense open, and more convenient operation is safer, and it is difficult to reduce construction
Degree.
(5) the application has not only saved project cost, shortens the construction period, and it is whole to improve the molding of elevator metope concrete
Perception, and pit shaft perpendicularity deviation and internal diameter deviation are reduced, good condition is created for elevator installation.
Detailed description of the invention
Fig. 1 is the top view of the application pit shaft internal model.
Fig. 2 is the contraction state schematic diagram of the application pit shaft internal model.
Fig. 3 is the sectional view of the application pit shaft internal model.
[the application main element symbol description]
1, right angle core ribbon；2, steel back is stupefied；3, template is fast；
4, adjustable support rod；5, folding cornea；6, base platform；
7, L-type steel muscle.
Specific embodiment
This application provides a kind of adjustable elevator shaft template of hoisting type and its construction technologies, have not only saved engineering and have made
Valence shortens the construction period, improves elevator metope concrete and forms whole perception, and reduces pit shaft perpendicularity deviation and interior
Diameter dimensional discrepancy is that create good condition be to keep the purposes, technical schemes and advantages of the application clearer for elevator installation
Understand, below in conjunction with specific embodiment, and referring to attached drawing, the application is further described.
Specific embodiment
Embodiment 1
As shown in Figure 1, 2 this application provides a kind of adjustable elevator shaft template of hoisting type, including base platform 6 be located at
The pit shaft internal model of the upside of base platform 6, the pit shaft internal model mainly stupefied 2, folding Corner Block List Representation 5, right angle core by formwork 3, steel back
Band 1, the several components of adjustable support bar 4 are constituted.Wherein template fast 3 is set to all around four side, and every side is equipped with two pieces, and totally eight
Block.Template fast 3 is rectangle, the height with a thickness of 80mm, highly for each floor.The two sides of every piece of formwork 3 are designed with two
A folding Corner Block List Representation 5, folding Corner Block List Representation 5 share 16 pieces, and the cross section of folding Corner Block List Representation 5 is right angled triangle, longer straight
The arm of angle belongs to pit shaft internal model outer surface on one side.Formwork 3 and the folding Corner Block List Representation 5 of the left and right sides pass through special modified asphalt mixtures modified by epoxy resin
Rouge adhesives.The folding Corner Block List Representation 5 at four angles of pit shaft internal model is connected using articulated manner.
Formwork 3 and folding Corner Block List Representation 5 are using flyash, gelating material, fiber thermal insulation material, foaming agent and water mixed preparing
At slurry, module software is formed after fermentation, is then placed into steam-cured in pre- formwork supporting plate be made.Flyash can also use coal
Spoil either coal-fired waste residue substitution, adaptation to local conditions, so that production cost is greatly lowered.Gelating material is by portland cement, stone
Ash composition, function are hydrated product will to be made to be converted into tobermorite and water garnet by high pressure-temperature steam pressure, so as to improve
Formwork 3 and 5 intensity of folding Corner Block List Representation.Fiber thermal insulation material can effectively improve the heat-insulation and heat-preservation and fire protection flame retarding of module
Can, and gelating material can be organically firmly combined together, can effectively prevent loose, phenomena such as cracking, falling off of Modular surface.
Foaming agent uses aluminium powder, this is a kind of scale like powder made of fine aluminium.Active aluminium content is high, easily disperses in water,
Get angry sufficiently, it is easy to use stable the features such as.It is acted on by the ascension of bubble, micropore can be formed inside module blank, favorably
In the maintenance of module condensation process.Module bulk density can be reduced simultaneously, the moisture in concrete will not infiltrate.
Steel back stupefied 2 shares four sides and independent branch is on the inside of the pit shaft internal model that formwork 3 and folding Corner Block List Representation 5 are constituted, and
It and is in mesh arrangement.The bottom of the steel back stupefied 2 is equipped with sliding block, and the upside of base platform 6 is equipped with guide rail, and steel back stupefied 2 can be the bottom of at
It is displaced on seat platform 6.The vertical view face of steel back stupefied 2 is isosceles trapezoid, and bottom length is to be less than in pit shaft close to the side of template fast 3
The length of two folding Corner Block List Representations 5 of mould side length.Adjustable support bar 4 is set on the center line of the pit shaft internal model, and branch is adjusted
Strut 4 is pierced by the steel back stupefied 2 in " cross ", and is fixedly connected with steel back stupefied 2, the two sides of the end of adjustable support bar 4
It is hinged with two pieces of folding Corner Block List Representations 5.The end of adjustable support bar 4 is to the distance of steel back stupefied 2 and the thickness one of formwork 3
It causes.Totally two groups of the adjustable support bar 4, being separately mounted to steel back stupefied 2, topmost a column are arranged with bottom one.Adjustable support
It is equipped with Telescopic rotating circle at 4 center of bar, for controlling the flexible of adjustable support bar 4, reaches and pushes steel back stupefied 2 in base platform
The purpose being displaced on 6 guide rail.
Present invention also provides a kind of adjustable elevator shaft template construction technologies of hoisting type, the specific steps are as follows:
Step 1: four Φ 32L steel bars 7, and the 250mm that extends outwardly are worn from outside to inside first on well bore wall, so
Base platform 6 is lifted by crane afterwards, and base platform 6 is placed on the L-type steel muscle 7 by promotion afterwards in place.After base platform 6 makes a decision,
Timber wedge Steady base platform 6 is arranged in surrounding, and four flank side surfaces and wall gap are respectively 25mm.
Step 2: the special modified epobond epoxyn is utilized respectively in the left and right sides of formwork 3 and bonds one
Folding Corner Block List Representation 5, the left and right sides of 4 end of adjustable support bar respectively with the folding Corner Block List Representation 5 that is mounted on two 3 sides of formwork
Hingedly, a side for constituting pit shaft internal model, adjacent folding Corner Block List Representation 5 is also hinged between two sides.By pit shaft internal model phase
After the components installation of mutual correlation forms a whole, adjustable support bar 4 pushes steel back stupefied 2 to formwork 3, it is ensured that pit shaft
Internal model is vertical, upright, alignment axis and central point, right angle core ribbon 1 is mounted on stupefied 6 junction of every two sides steel back, for fixing
Steel back stupefied 6, being square at this time to the cross section of pit shaft internal model before pouring concrete should be in the table in pit shaft internal model and pit shaft external mold
Face, which is brushed, is prepared interleaving agent by aqueous organic fluorine emulsion, then with connection bolt-through pit shaft internal model, pit shaft external mold and steel
Back cord 2 fixes pit shaft internal model and pit shaft external mold.
Step 3: the model that pours formed to pit shaft internal model and pit shaft external mold carries out pouring concrete, waits the concrete final set of borehole wall concrete
Gu and when reaching some strength, unclamping external mold in pit shaft and connecting bolt, operate two-way adjustable support rod 4 and bounce back, steel back stupefied 2 is the bottom of at
Retreated on the guide rail of seat platform 6, at the same formwork 3 and folding Corner Block List Representation 5 to off-centring far from concrete, until keeping pit shaft internal model de-
From concrete 40mm or more, it is convenient to clean the concrete of template attachment, interleaving agent is then coated, continues to use.
Formwork 3, steel back be stupefied 2, folding Corner Block List Representation 5, right angle core ribbon 1, adjustable support bar 4
S4: remove timber wedge, under lower first floor face in connection ad hoc at 560mm in the screw hole of external mold by L-type steel muscle 7
It is inserted, then continues to repeat the above steps by base platform and the lifting of pit shaft internal model.
So far, attached drawing is had been combined the present embodiment is described in detail.According to above description, those skilled in the art
There should be clear understanding to the application.
It should be noted that in attached drawing or specification text, the implementation for not being painted or describing is affiliated technology
Form known to a person of ordinary skill in the art, is not described in detail in field.In addition, the above-mentioned definition to each element and method is simultaneously
It is not limited only to various specific structures, shape or the mode mentioned in embodiment.
It should also be noted that, can provide the demonstration of the parameter comprising particular value herein, but these parameters are without definite etc.
In corresponding value, but analog value can be similar in acceptable error margin or design constraint.The side mentioned in embodiment
It is only the direction with reference to attached drawing to term, such as "upper", "lower", "front", "rear", "left", "right" etc., is not used to limit this
The protection scope of application.In addition, unless specifically described or the step of must sequentially occur, the sequences of above-mentioned steps there is no restriction in
It is listed above, and can change or rearrange according to required design.And above-described embodiment can be based on design and reliability
Consider, the collocation that is mixed with each other is used using or with other embodiments mix and match, i.e., the technical characteristic in different embodiments can be with
Freely form more embodiments.
Particular embodiments described above has carried out further in detail the purpose of the application, technical scheme and beneficial effects
Describe in detail it is bright, it is all it should be understood that be not intended to limit this application the foregoing is merely the specific embodiment of the application
Within spirit herein and principle, any modification, equivalent substitution, improvement and etc. done should be included in the guarantor of the application
Within the scope of shield.
Claims (10)
1. a kind of adjustable elevator shaft template of hoisting type characterized by comprising
Base platform；
Pit shaft internal model is set on the upside of base platform；The pit shaft internal model includes:
Formwork, is set to four side all around by totally eight pieces, and every side is equipped with two pieces；
Steel back is stupefied, is set on the inside of formwork in " netted "；
Folding Corner Block List Representation, totally ten six pieces, set on the two sides of every piece of formwork；
Right angle core ribbon is set to the stupefied junction of steel back；
Adjustable support bar is pierced by that the steel back is stupefied in " cross ", the two sides of end and two pieces of dog's-ear module-articulations；
The formwork and left and right folding Corner Block List Representation are bonded using special modified epobond epoxyn, the pit shaft internal model four
The folding Corner Block List Representation at angle is connected using articulated manner.
2. the adjustable elevator shaft template of a kind of hoisting type according to claim 1, which is characterized in that the pit shaft internal model,
Pit shaft external mold and steel back it is stupefied by connect bolt-through fix.
3. the adjustable elevator shaft template of a kind of hoisting type according to claim 1, which is characterized in that the formwork and folding
Page Corner Block List Representation is to be hybridly prepared into slurry using flyash, gelating material, fiber thermal insulation material, foaming agent and water, forms mould after fermentation
Block software is then placed into steam-cured in pre- formwork supporting plate be made.
4. the adjustable elevator shaft template of a kind of hoisting type according to claim 1, which is characterized in that the adjustable support
Bar is set on the center line of the pit shaft internal model.
5. the adjustable elevator shaft template of a kind of hoisting type according to claim 3, which is characterized in that the folding Corner Block List Representation
Cross section be right angled triangle, longer right-angle side belongs to pit shaft internal model outer surface, the stupefied vertical view face of the steel back on one side
For isosceles trapezoid, length of going to the bottom is less than the stupefied length of two steel backs of pit shaft internal model side length.
6. the adjustable elevator shaft template of a kind of hoisting type according to claim 1, which is characterized in that the adjustable support
Bar with the steel back is stupefied is fixedly connected.
7. the adjustable elevator shaft template of a kind of hoisting type according to claim 1, which is characterized in that at the pit shaft internal model
Cross section is square when working condition.
8. a kind of adjustable elevator shaft template of hoisting type described in -7 according to claim 1, which is characterized in that construction technology includes
Following steps:
S1: wearing four Φ 32L steel bars, and the 250mm that extends outwardly from outside to inside on well bore wall, lifts by crane base platform, will
Base platform is promoted in place.After base platform makes a decision, timber wedge Steady base platform, four flank side surfaces and wall gap are set in surrounding
It is respectively 25mm.
S2: on base platform by pit shaft internal model be mutually related components installation form a whole, be equipped with through pit shaft internal model
Two-way adjustable support rod be adjusted to position, it is ensured that pit shaft internal model is vertical, upright, alignment axis and central point, in pit shaft
Then mould and pit shaft external mold inner surface brushing interleaving agent are fixed pit shaft internal model and pit shaft external mold with connection bolt.
S3: the model that pours formed to pit shaft internal model and pit shaft external mold carries out pouring concrete, when borehole wall concrete reaches some strength, pine
Drive a well external mold connection bolt in cylinder, operates two-way adjustable support rod, template is made to be detached from concrete 40mm or more, be convenient to clean template attachment
Concrete, then coat interleaving agent, continue to use.
S4: removing timber wedge, and base platform and the lifting of pit shaft internal model are continued to repeat the above steps.
9. the adjustable elevator shaft template construction technology of a kind of hoisting type according to claim 8, which is characterized in that the step
Interleaving agent described in rapid S2 is prepared by aqueous organic fluorine emulsion.
10. the adjustable elevator shaft template construction technology of a kind of hoisting type according to claim 8, which is characterized in that described
L-type steel muscle described in step S1 needs to be inserted in company ad hoc at 560mm under lower first floor face after entering subsequent work circulation
In the screw hole for connecing interior external mold, and need to be in same level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810999410.XA CN109098432A (en) | 2018-08-29 | 2018-08-29 | A kind of hoisting type is adjustable elevator shaft template and its construction technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810999410.XA CN109098432A (en) | 2018-08-29 | 2018-08-29 | A kind of hoisting type is adjustable elevator shaft template and its construction technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109098432A true CN109098432A (en) | 2018-12-28 |
Family
ID=64864255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810999410.XA Pending CN109098432A (en) | 2018-08-29 | 2018-08-29 | A kind of hoisting type is adjustable elevator shaft template and its construction technology |
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| CN (1) | CN109098432A (en) |
Cited By (5)
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| CN110242046A (en) * | 2019-05-28 | 2019-09-17 | 深圳市前海荣群铝业科技有限公司 | A kind of elevator aluminum alloy pattern plate and its processing technology |
| CN111022056A (en) * | 2019-12-06 | 2020-04-17 | 郑州大学 | Assembly circulating type municipal well wall template supporting device |
| CN111622495A (en) * | 2020-06-04 | 2020-09-04 | 中国建筑第二工程局有限公司西南分公司 | Elevator shaft die mechanism and elevator shaft pouring method |
| CN112982966A (en) * | 2021-02-28 | 2021-06-18 | 晟通科技集团有限公司 | Template combination |
| CN115142667A (en) * | 2022-05-19 | 2022-10-04 | 广东耀南建设集团有限公司 | Integrated self-climbing elevator shaft formwork structure and construction method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242046A (en) * | 2019-05-28 | 2019-09-17 | 深圳市前海荣群铝业科技有限公司 | A kind of elevator aluminum alloy pattern plate and its processing technology |
| CN111022056A (en) * | 2019-12-06 | 2020-04-17 | 郑州大学 | Assembly circulating type municipal well wall template supporting device |
| CN111022056B (en) * | 2019-12-06 | 2021-09-07 | 郑州大学 | Assembly circulating type municipal well wall template supporting device |
| CN111622495A (en) * | 2020-06-04 | 2020-09-04 | 中国建筑第二工程局有限公司西南分公司 | Elevator shaft die mechanism and elevator shaft pouring method |
| CN112982966A (en) * | 2021-02-28 | 2021-06-18 | 晟通科技集团有限公司 | Template combination |
| CN115142667A (en) * | 2022-05-19 | 2022-10-04 | 广东耀南建设集团有限公司 | Integrated self-climbing elevator shaft formwork structure and construction method thereof |
| CN115142667B (en) * | 2022-05-19 | 2024-02-27 | 广东耀南建设集团有限公司 | Integrated self-climbing elevator shaft formwork structure and construction method thereof |
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Application publication date: 20181228 |