CN108868131A - Precast stair supporting apparatus and its application construction method - Google Patents
Precast stair supporting apparatus and its application construction method Download PDFInfo
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- CN108868131A CN108868131A CN201810762675.8A CN201810762675A CN108868131A CN 108868131 A CN108868131 A CN 108868131A CN 201810762675 A CN201810762675 A CN 201810762675A CN 108868131 A CN108868131 A CN 108868131A
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- precast stair
- supporting element
- supporting apparatus
- connect
- supporting
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- 238000010276 construction Methods 0.000 title claims abstract description 25
- 238000009434 installation Methods 0.000 claims abstract description 9
- 239000000725 suspension Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241001282153 Scopelogadus mizolepis Species 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/06—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for stairs, steps, cornices, balconies, or other parts corbelled out of the wall
- E04G13/062—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for stairs, steps, cornices, balconies, or other parts corbelled out of the wall for stairs or steps
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Steps, Ramps, And Handrails (AREA)
Abstract
The present invention discloses a kind of precast stair supporting apparatus.At work, support portion is supported precast stair to the precast stair supporting apparatus with suspention portion, and suspention portion and support portion can match mobile precast stair, realizes the mounting and adjusting of precast stair；After precast stair is moved to required position, fixed lifting unit and suspention portion complete the installation and support of precast stair.Above-mentioned precast stair supporting apparatus structure is simple, the load of precast stair is shared simultaneously by support portion and lifting unit, so that precast stair support is firm, and since suspention portion can move precast stair in the horizontal direction, multiple above-mentioned precast stair supporting apparatus can cooperate the movement and rotation for realizing precast stair all directions.In addition, the application construction method of above-mentioned precast stair supporting apparatus is easy to operate, it is easy for construction.
Description
Technical field
The present invention relates to fabricated construction engineering construction fields, more particularly to precast stair supporting apparatus and its answer
Use construction method.
Background technique
With the development of modern industrial technology, assembled architecture is applied in building engineering construction more and more.Assembly
The characteristics of formula is built is that a large amount of building subassembly is completed the process by Workshop Production, and a large amount of assembling work in scene, finishing can be with master
Body construction is synchronous to carry out.
However, being increasing with big scale of construction engineering, each work unit intersects, interspersed operation is also more aobvious frequent, usually
Construction operation difficulty can be encountered, such as fabricated construction precast stair lifting construction, Construction Support positions not only difficult, Er Qie
In installation process, it is necessary to which support is firm and does not influence stair walkway safe, and the adjustment to precast stair position is difficult to after installation.It is existing
There is technology CN201710771329.1 to disclose a kind of precast stair supporting apparatus, including scaffold, lifting unit and support
Portion, lifting unit are set on scaffold, and for support zone between lifting unit and precast stair, support portion includes sequentially connected
One supporting element, the second supporting element and third supporting element, the first supporting element are connect with lifting unit, second supporting element one end with first
Support member connection, the other end are connect with third supporting element, and third supporting element is connect with precast stair.Above-mentioned precast stair temporary support
Apparatus structure is simple, and the load of precast stair reaches scaffold through lifting unit by support portion, so that precast stair support is firm.So
And the position two sides of installation precast stair are often arranged in scaffold, it has not been convenient to the setting support knot directly below precast stair
Structure；And multiple support constructions cooperate the holding state of each support construction when being supported to be not easy to be judged；In addition should
It cannot achieve moving horizontally for precast stair in scheme, be not able to cooperate the fine tuning installed.
Summary of the invention
Based on this, it is necessary to which support positions difficult problem when lifting for prefabricated stair, provides one kind and applies
The precast stair supporting apparatus and its application construction method that work is simple, support is firm and adjustment is facilitated to install.
A kind of precast stair supporting apparatus, is used to support precast stair, which is characterized in that including：
Main part, the main part are fixed on scaffold by fixing component；
Lifting unit is set to the main part lower part；
Support portion, between the lifting unit and the precast stair,
Suspention portion is set to the main part top.
The support portion includes sequentially connected first supporting element, the second supporting element and in one of the embodiments,
Three supporting elements, first supporting element are connect with the lifting unit, and second supporting element one end and first supporting element connect
It connects, the other end is connect with the third supporting element, and the third supporting element is connect with the precast stair.
Second supporting element is elastic component in one of the embodiments,.
It in one of the embodiments, further include the first alarming device and the second alarming device, it is downward in third supporting element
When compressing second supporting element to certain distance, first switch is touched, first alarming device is opened；In third supporting element
When continuing to compress second supporting element downwards to certain distance, second switch is touched, the first alarming device closing is described
Second alarming device is opened.
The alarming device is indicator light and/or loudspeaker in one of the embodiments,.
Sliding block is equipped on the outside of the third supporting element in one of the embodiments, in first supporting element
Outside be fixed with sliding slot compatible with the sliding block, be arranged at intervals with described first by specific range in the sliding slot and open
It closes and the second switch；During the third supporting element compresses downwards second supporting element, the sliding block is along the cunning
Slot sliding, successively touches the first switch and the second switch.
First supporting element upper surface is equipped with the first switch and described second and opens in one of the embodiments,
Close, third supporting element lower surface position corresponding with the first switch and the second switch equipped with the first spring and
Second spring, the length of first spring are longer than the second spring, and the third supporting element compresses downwards described second
During support member, first spring first touches the first switch, and then the second spring touches the second switch.
Warning circuit is connected as in one of the embodiments,：First switch one end is connect with positive pole, first switch
The other end is divided into two-way, connects the first indicator light all the way, then connects power cathode；Another way connects second switch, then connects
The second indicator light is connect, power cathode is then connected.
Third supports support face and the bottom surface of the precast stair are arranged in parallel in one of the embodiments,.
The suspention portion includes spiral arm in one of the embodiments, and the spiral arm end and main part rotation connect
It connects.
The suspention portion includes telescopic spiral arm in one of the embodiments,.
The suspention portion further includes suspension apparatus in one of the embodiments,.
The suspension apparatus includes capstan winch, pulley, motor etc. in one of the embodiments,.
The suspention portion includes hook in one of the embodiments, the built-in fitting of the hook and the precast stair
Connection.
It is stretched in one of the embodiments, by telescopic spiral arm come the horizontal position of moveable hook.
Cooperate the horizontal position of moveable hook by capstan winch, hawser, pulley, motor etc. in one of the embodiments,.
The main part is equipped with sliding slot in one of the embodiments, and the lifting unit lower end is set in the sliding slot,
It can be slided along the sliding slot.
Two precast stair supporting apparatus are located at mutually level two institutes in one of the embodiments,
It states support portion and is supported by scissors and is connected.
The third supporting element is steel plate in one of the embodiments,.
First supporting element is steel plate in one of the embodiments,.
First supporting element is connect by bolt with the lifting unit in one of the embodiments,.
The lifting unit is oil overhold in one of the embodiments,.
The application construction method of above-mentioned precast stair supporting apparatus includes the following steps：
The main part is fixed on scaffold；
The support portion and the suspention portion are connect with the main part respectively；
Precast stair is lifted to the support portion, and the precast stair is connect with the suspention portion；
It adjusts the support portion and the suspention portion and the precast stair is carried to predeterminated position, then fix the liter
Drop portion and suspention portion, complete the installation of the precast stair.
At work, support portion props up precast stair to above-mentioned precast stair supporting apparatus with suspention portion
Support, suspention portion and support portion can match mobile precast stair, realize the mounting and adjusting of precast stair；It is moved by precast stair
After moving required position, fixed lifting unit and suspention portion complete the installation and support of precast stair.Above-mentioned precast stair temporarily props up
Support arrangement structure is simple, and the load of precast stair is shared simultaneously by support portion and lifting unit, so that precast stair support is firm, and
And since suspention portion can move precast stair in the horizontal direction, multiple above-mentioned precast stair supporting apparatus can cooperate reality
The movement and rotation of existing precast stair all directions.In addition, the application construction method of above-mentioned precast stair supporting apparatus
It is easy to operate, it is easy for construction.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the precast stair supporting apparatus in an embodiment；
Fig. 2 is the schematic diagram of the precast stair supporting apparatus support precast stair in an embodiment；
Fig. 3 is the top view of the precast stair of an embodiment；
Fig. 4 is the side view of the precast stair of an embodiment.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1：
As shown in Figure 1, the precast stair supporting apparatus of an embodiment include main part 1, lifting unit 2, support portion 3,
Suspention portion 4；The main part 1 is fixed on scaffold by fixing component；Lifting unit 2 is set to 1 lower section of main part
Extension 12 on；Support portion 3 is between the lifting unit 2 and the precast stair；Suspention portion 4 is set to the main body
Portion top.Precast stair 10 is supported by support portion 3 and the cooperation of suspention portion 4.
As shown in Fig. 2, the support portion 3 includes sequentially connected first supporting element 31, the second supporting element 32 and third
Supporting element 33, first supporting element 31 are connect with the lifting unit 2, described second supporting element, 32 one end and first support
Part 31 connects, and the other end is connect with the third supporting element 33, and the third supporting element 33 is connect with the precast stair.It is described
Suspention portion 4 includes telescopic spiral arm 41, hawser 42 and suspension hook 43, and 1 top of main part is equipped with to rotate with suspention portion 4 and connect
Spin axis 11.
It as shown in Figure 3 and Figure 4, generally, can include multiple precast stairs 10 in building structure, above-mentioned precast stair faces
When support device be for precast stair caused by 10 localized loss of prefabricated concrete structure Bar Anchorage class precast stair
10 can not be supported and be fixed by structure itself.In construction, the position of structure missing is arranged in scaffold, after being installed,
The load that support portion 3 and suspention portion 4 are born passes to main part 1, is then passed to scaffold, and scaffold successively passes to again
The structure of lower part, until being transmitted to ground.
Since the height and position of different buildings and the precast stair 10 to be lifted of different layers may be different, work as lifting
Precast stair 10 be placed on support portion 3 after, will on precast stair 10 with lifting instrument hook connection built-in fitting and suspention portion
4 suspension hook 43 connects；The height that precast stair 2 is risen to setting using lifting unit 2 and suspention portion 4, passes through 4 spiral arm of suspention portion
41 flexible and rotation adjusts the horizontal position of precast stair 10.In the present embodiment, lifting unit 12 is oil overhold, using oil overhold and
The cooperation lifting precast stair 2 of hawser 42 in suspention portion, operation are easy and laborsaving.
As depicted in figs. 1 and 2, support portion 3 is for connecting lifting unit 2 and precast stair 10.In the present embodiment, first
Support member 31 is steel plate, and the first supporting element 31 is connect by bolt with lifting unit 2.Steel plate is placed on the jacking of oil overhold, is then adopted
Steel plate and jacking are fixed with bolt, and then realize the connection of the first supporting element 31 and lifting unit 2.Being connected by screw bolts can be real
Existing first supporting element 31 is detachably connected with lifting unit 2, convenient for assembling and construction.
In the present embodiment, the second supporting element 32 includes multiple springs.As depicted in figs. 1 and 2, the bullet of the second supporting element 32
Spring is separately connected the first supporting element 31 and third supporting element 33, and makes the third supporting element 33 being located on the second supporting element 32
Form an inclined-plane.So that the supporting surface tilt angle of supporting element 3 is adapted with precast stair；Simultaneously as the second supporting element
32 elasticity can preferably protect precast stair during support, while cooperation suspention portion 4 also being facilitated to adjust prefabricated building
The position of ladder.
Since stair generally can be at an angle with horizontal plane, as shown in Figure 1, in the present embodiment, third supporting element
33 is parallel with the bottom surface of precast stair 10.That is, third supporting element 33 formed an inclined-plane, and the tilt angle on the inclined-plane with
The tilt angle of precast stair 10 is consistent, when precast stair 10 is placed on third supporting element 33, third supporting element 33 and pre-
The bottom surface of stair 10 processed is bonded, so that the connection between third supporting element 33 and precast stair 10 is that face is connect with face, it is prefabricated
Stair 2 provide maximum support.
Fig. 1 and Fig. 2 are please referred to, the application construction method of above-mentioned precast stair supporting apparatus 1 includes the following steps：
The main part 1 is fixed on scaffold.It can be convenient for being fixedly connected with scaffold by prefabricated on main part 1
Connecting elements (if connect clip fastly, clamping groove, clamping ring etc.), quickly and securely main part 1 is fixed with scaffold.It can also
With by clip, screw, iron wire the modes such as ties up and fixes main part and scaffold.
The lifting unit 2, the support portion 3 and the suspention portion 4 are connect with the main part 1 respectively, installs and adjusts
The all parts in whole suspention portion 4 rotate spiral arm 41 around spin axis 11, so that the spiral arm 41 in suspention portion 4 is located at hoisting prefabricated stair 10
Space except.
Precast stair 10 is lifted instrument by outside to lift to the support portion 3, rotates the spiral arm 41 in suspention portion 4,
The built-in fitting connecting on the precast stair 10 with external lifting instrument is changed to connect with the suspension hook 43 in the suspention portion 4.
It adjusts the lifting unit 2 and the suspention portion 4 and the precast stair 10 is carried to predeterminated position, then fix institute
Lifting unit 2 and suspention portion 4 are stated, the installation of the precast stair 10 is completed.
Above-mentioned precast stair supporting apparatus is connected to precast stair 10 and provides support for precast stair 10, overcomes
The problem that can not be supported and fix by structure itself when 10 localized loss of precast stair, ensure that the prefabricated building of Bar Anchorage class
The safety and quality of terraced 10 installations.And it is possible to which Large-scale Hoisting instrument can not carry out precast stair quasi- in narrow space
When true location and installation, precast stair is moved, is rotated, quickly and easily to install precast stair.Above-mentioned prefabricated building
Terraced supporting apparatus structure is simple, easy to use, by the weight of support portion 3 and the cooperation of suspention portion 4 support precast stair, more
Add firm, safety.In addition, the application construction method step of above-mentioned precast stair supporting apparatus is simple, it is suitable for popularization and application.
Embodiment 2
In the present embodiment, bar shaped sliding block is equipped on the outside of the third supporting element 33, in first supporting element
Outside be fixed with sliding slot compatible with the sliding block；The bar shaped upper end of slide block and the third supporting element 33 are hinged, under
The sliding slot is inserted at end.The first switch and the second switch are arranged at intervals with by specific range in the sliding slot；Institute
State during third supporting element compresses downwards second supporting element, the sliding block is slided along the sliding slot, successively touch described in
First switch and the second switch.The first switch and the second switch can be pressing set on sliding slot interior side
Button when sliding block passes through, squeezes the button to issue switching signal.Certainly, the first switch and the second switch
It can be the switch for the other forms that other can be touched by sliding block machinery or induction type triggers, not be described in detail one by one herein.
First switch one end is connect with positive pole, and the first switch other end is divided into two-way, connects the first indicator light all the way,
Then power cathode is connected；Another way connects second switch, then connects the second indicator light, then connects power cathode.
Cooperate the support portion 3 to support precast stair 10 controlling the suspention portion 4 or adjust the position of precast stair 10
When setting, first indicator light and the second indicator light can indicate the stress condition of the support portion 3, and operator is facilitated to adjust
Suspention portion 4 and lifting unit 2, the preferably position of support precast stair or preferably adjustment precast stair 10, prevent multiple pre-
When stair supporting apparatus processed cooperates, a certain support portion stress is too small or excessive and accident occurs.
The bar shaped sliding block on the outside of the third supporting element 33 be equipped with it is multiple, touch alarming device alarm it is same
When, it is ensured that third supporting element 33 when compressing the second supporting element 32 along specific direction (direction along the chute, i.e., vertically to
Under), without improving the stability and safety of support because the offset of spring causes to support in vain.
Embodiment 3
In the present embodiment, in embodiment 1 the difference is that, the spiral arm 41 in the suspention portion 4 be it is non-telescoping,
It is equipped with pulley structure on cantilever 41, passes through the more liftings of hawser adjusting lift hook and moving along 41 direction of spiral arm, principle
It is identical as the suspension hook control of lifting machine in the prior art, it is not described in detail here.
Embodiment 4
In the present embodiment, 10 side of precast stair be equipped with built-in fitting, third supporting element 33 by the built-in fitting with it is prefabricated
Stair 10 connect.In order to guarantee stability of the precast stair 10 on supporting apparatus, precast stair 10 is fixed on third
On supporting element 33.In the present embodiment, the built-in fitting is sleeve and anchor foot.Sleeve is hollow tube, and the bottom end closure of pipe is simultaneously set
There is anchor foot.Then bolt is inserted into sleeve, precast stair 10 is connect with third supporting element 33.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of precast stair supporting apparatus, is used to support precast stair, which is characterized in that including：
Main part, the main part are fixed on scaffold by fixing component；
Lifting unit is set to the main part lower part；
Support portion, between the lifting unit and the precast stair,
Suspention portion is set to the main part top.
2. precast stair supporting apparatus according to claim 1, which is characterized in that the support portion includes successively connecting
The first supporting element, the second supporting element and the third supporting element connect, first supporting element are connect with the lifting unit, and described second
Supporting element one end is connect with first supporting element, and the other end is connect with the third supporting element, the third supporting element and institute
State precast stair connection.
3. precast stair supporting apparatus according to claim 2, which is characterized in that second supporting element is elasticity
Part.
4. precast stair supporting apparatus according to claim 3, which is characterized in that further include the first indicator light and
Two indicator lights touch first switch when third supporting element compresses downwards second supporting element to certain distance, and described first
Instruction is lighted；When third supporting element continues to compress downwards second supporting element to certain distance, second switch is touched, it is described
First instruction is extinguished, and second indicator light is lighted.
5. precast stair supporting apparatus according to claim 3, which is characterized in that third supports support face
It is arranged in parallel with the bottom surface of the precast stair.
6. precast stair supporting apparatus according to claim 1, which is characterized in that the suspention portion includes scalable
Spiral arm, the spiral arm end and the main part rotation connect.
7. precast stair supporting apparatus according to claim 6, which is characterized in that the suspention portion further includes suspention
Device.
8. precast stair supporting apparatus according to claim 7, which is characterized in that the suspention portion includes hook,
The hook is connect with the built-in fitting of the precast stair.
9. precast stair supporting apparatus according to claim 1, which is characterized in that be set to mutually level two institutes
It states support portion and is supported by scissors and is connected.
10. a kind of application construction method of the described in any item precast stair supporting apparatus of claim 1-9, feature exist
In including the following steps：
The main part is fixed on scaffold；
The support portion and the suspention portion are connect with the main part respectively；
Precast stair is lifted to the support portion, and the precast stair is connect with the suspention portion；
It adjusts the support portion and the suspention portion and the precast stair is carried to predeterminated position, then fix the lifting unit
With suspention portion, the installation of the precast stair is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810762675.8A CN108868131B (en) | 2018-07-12 | 2018-07-12 | Temporary support device for prefabricated staircase and application construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810762675.8A CN108868131B (en) | 2018-07-12 | 2018-07-12 | Temporary support device for prefabricated staircase and application construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108868131A true CN108868131A (en) | 2018-11-23 |
| CN108868131B CN108868131B (en) | 2021-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810762675.8A Active CN108868131B (en) | 2018-07-12 | 2018-07-12 | Temporary support device for prefabricated staircase and application construction method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN108868131B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110656769A (en) * | 2019-09-29 | 2020-01-07 | 上海二十冶建设有限公司 | Stair inclined formwork supporting device and using method thereof |
| CN110952788A (en) * | 2019-12-13 | 2020-04-03 | 三一筑工科技有限公司 | Beam-slab auxiliary installation robot for assembly type hoisting |
| CN113321115A (en) * | 2021-05-19 | 2021-08-31 | 万达集团股份有限公司 | Special device for transporting and hoisting mold |
| CN118441856A (en) * | 2024-07-08 | 2024-08-06 | 福建星原建设工程发展有限公司 | A connection structure and connection method between prefabricated concrete components |
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| CN107954306A (en) * | 2017-11-21 | 2018-04-24 | 上海建工五建集团有限公司 | Precast stair Lift-on/Lift-off System and hanging method |
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| CN1049699A (en) * | 1989-08-22 | 1991-03-06 | 钱泽民 | Safety display device for single hydraulic prop |
| US20050011560A1 (en) * | 2001-02-23 | 2005-01-20 | Schwing America, Inc. | Boom utilizing composite material construction |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110656769A (en) * | 2019-09-29 | 2020-01-07 | 上海二十冶建设有限公司 | Stair inclined formwork supporting device and using method thereof |
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| CN113321115A (en) * | 2021-05-19 | 2021-08-31 | 万达集团股份有限公司 | Special device for transporting and hoisting mold |
| CN113321115B (en) * | 2021-05-19 | 2024-03-12 | 万达集团股份有限公司 | Special device for transporting hoisting mould |
| CN118441856A (en) * | 2024-07-08 | 2024-08-06 | 福建星原建设工程发展有限公司 | A connection structure and connection method between prefabricated concrete components |
| CN118441856B (en) * | 2024-07-08 | 2024-09-17 | 福建星原建设工程发展有限公司 | A connection structure and connection method between prefabricated concrete components |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108868131B (en) | 2021-01-26 |
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