CN108642996A - A kind of first floor or basement roof and road/square deformation joint and its construction method - Google Patents
A kind of first floor or basement roof and road/square deformation joint and its construction method Download PDFInfo
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- CN108642996A CN108642996A CN201810398685.8A CN201810398685A CN108642996A CN 108642996 A CN108642996 A CN 108642996A CN 201810398685 A CN201810398685 A CN 201810398685A CN 108642996 A CN108642996 A CN 108642996A
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- steel plate
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
- E01C11/04—Arrangement or construction of joints; Methods of making joints; Packing for joints for cement concrete paving
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
- E01C11/04—Arrangement or construction of joints; Methods of making joints; Packing for joints for cement concrete paving
- E01C11/06—Methods of making joints
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
-
- 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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Building Environments (AREA)
- Road Paving Structures (AREA)
Abstract
A kind of first floor of present invention offer or basement roof and road/square deformation joint, including：In buried rubber fastening band (1),Reinforcing bar is with steel plate (2),Pre-buried drawing-in wire screwed hose (3),Expansion joint (4),Waterproof layer (5) and waterproofing unction (6),In buried rubber fastening band (1) be welded and fixed with steel plate (2) with reinforcing bar,Buried rubber fastening band (1) has deformation hole in and,In buried rubber fastening band (1) center overlapped with the center line of deformation joint,Waterproof layer (5) includes two layers,Respectively outdoor water-proof layer and twice waterstop,It is excessively tight that first layer outdoor water-proof layer receives side and overlap joint,Form cushion rubber closing,Second layer waterproof layer for the pre-buried twice waterstop of structural slab in seam and takes fixation pouring the when of smashing concrete,Waterproofing unction (6) is used to tamp the gap between fixed waterproof layer (5) and expansion joint (4),Pre-buried drawing-in wire screwed hose (3) is mounted on according to floor location setting immediately below reinforcing bar steel plate (2).
Description
Technical field
The present invention relates to industrial building and public building technical field, especially a kind of first floor or basement roof and road
Square deformation joint and its construction method.
Background technology
There is the deformation joint pattern for coming from national building standard design 10J301 pages of 45 nodes 2 of atlas, such as Fig. 1 in the prior art
It is shown.Since seam structure on two sides plate needs to deform, its upper layer and concrete cover is caused often to crack, the result is that doing one
Go here and there water with regard to cracking one, in rainy day slit, or even to seriously affect road/square beautiful and use.In addition, also not solving
The problem of how passing through electromechanical pipeline, in practice, the pipeline in seam are often broken.
Invention content
In order to overcome the problems, such as three of the existing technology, including：1) the upper road/square cracking common fault in seam top is solved；2) it solves
Certainly anti-seep water problem；3) various traversing pipe line seams are solved not broken；And design the present invention
The purpose of the present invention is to provide a kind of first floor or basement roof and road/square deformation joints, including in buried rubber
Glue waterstop (1), reinforcing bar steel plate (2), pre-buried drawing-in wire screwed hose (3), expansion joint (4), waterproof layer (5) and dubbin
Cream (6), buried rubber fastening band (1) is welded and fixed with reinforcing bar with steel plate (2) in described, and it is described in buried rubber fastening band
(1) there is deformation hole, height to be arranged according to the stretching being subject in malformation and failure by shear power, buried rubber stops in described
The center of water band (1) is overlapped with the center line of the deformation joint, and the waterproof layer (5) includes two layers, respectively outdoor water-proof layer
With twice waterstop, the first layer outdoor water-proof layer receives side and overlap joint excessively tightly, forms cushion rubber closing, separated thicker
Ponding oozes and looks for slope to drain ponding in structural slab upper edge seam longitudinal direction down in backfill layer, and the second layer waterproof layer is to be tied in seam
The pre-buried twice waterstop of structure plate simultaneously takes fixation, the waterproofing unction (6) fixed described anti-for tamping pouring the when of smashing concrete
Gap between water layer (5) and the expansion joint (4), the pre-buried drawing-in wire screwed hose (3) sets according to floor location pacifies
Immediately below reinforcing bar steel plate (2).
Preferably, further include aluminium alloy pedestal (7), back-fire relief band (8), metal expanded anchor bolt (9), stainless steel slide bar (10),
The stainless steel plate corollary apparatus (12) of gap-filling glue (11) and reinforcing bar steel plate (2), the stainless steel plate corollary apparatus (12) set
It sets at the top of deformation joint, the aluminium alloy pedestal (7) is located at below the stainless steel plate corollary apparatus (12) and fills in deformation
In seam, gap-filling glue (11) landfill is between the aluminium alloy pedestal (7) and the stainless steel plate corollary apparatus (12), institute
It states stainless steel slide bar (10) to be suspended to above the back-fire relief band (8), is used for the deformation of coordination structure plate, the back-fire relief band (8) presses A
It is M6 types ,@300 and interlaced arrangement that grade, which requires setting, the metal expanded anchor bolt (9),.
Preferably, the stainless steel plate corollary apparatus (12) includes foamed plastic rod, for the sealing of joint filling sealing function
Cream, the first polyphenyl lath being arranged outside deformation joint and the second polyphenyl lath being arranged inside deformation joint, in buried rubber
Glue waterstop, gap of the region that the sealing compound joint filling seals between the first polyphenyl lath and the second polyphenyl lath.
The present invention also aims to provide the construction method of a kind of first floor or basement roof and road/square deformation joint,
It effectively connects, includes the following steps for solving road square cracking common fault and progress waterproof and pipeline：
Step 1, installation reinforcing bar is with steel plate (2), by structural slab flange to pushing up or road surface, if original structure plate passes through less than top
Bar planting pours concrete to top, and the thicker backfill layer in expansion joint (4) both sides is separated by waterproofing unction (6)；
Step 2, in flared end portions set aside pre-embedded drawing-in wire screwed hose (3), to be docked with the pipeline in structural slab,
Solve the problems, such as that crossline is easy to destroy because of deformation in seam；
Step 3 implements tight waterproof：Outdoor water-proof layer is tightly received side and overlaps excessive, formation cushion rubber by first of waterproof
Closing has separated ponding in thicker backfill layer and has oozed down and look for slope to drain ponding in structural slab upper edge seam longitudinal direction, and second is anti-
Water is buried rubber fastening band (1) in the pre-buried twice of structural slab in seam, and takes fixation pouring the when of smashing concrete, to ensure
Indoor suspended ceiling, pipeline and metope are not violated by water enchroachment (invasion).
It is sliding to push up design band in seam for step 4, installation stainless steel plate corollary apparatus (12) aluminium alloy base band (7), back-fire relief band (8)
The deformation quantity of the device of bar, that is, stainless steel slide bar (10) coordination structure plate, after connecting each structural member by metal expanded anchor bolt (9)
Pass through gap of gap-filling glue (11) filling expansion joint (11) between component.
It is using the advantageous effect of above-mentioned technical proposal：Solve the upper road/square cracking common fault in seam top；Solve anti-seep water
Problem and various traversing pipe lines stitch the problem not broken, are deformed using commensurate structure, to ensure that floor or more is water-tight, road
Road square ground does not crack and traversing pipe line is not damaged by deformation.Road/square ground is no longer cracked, attractive and durable, and waterproof is thin
Section, protects indoor pipeline, furred ceiling, metope not to be damaged conscientiously, and crossline concealed work has reliable guarantee, final to obtain
Good economic and social benefit.
According to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will be brighter
The above and other objects, advantages and features of the present invention.
The brief description of accompanying drawing
Some specific embodiments that the invention will be described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter.
Identical reference numeral denotes same or similar component or part in attached drawing.It should be appreciated by those skilled in the art that these
What attached drawing was not necessarily drawn to scale.The target and feature of the present invention will be apparent from view of following description taken together with the accompanying drawings,
In attached drawing：
Attached drawing 1 is the deformation joint pattern that prior art national building standard designs 10J301 pages of 45 nodes 2 of atlas；
Attached drawing 2 is according to the first floor or basement roof and road/square deformation joint of the embodiment of the present invention and periphery construction ring
Border relational graph；
Attached drawing 3 is the first floor or basement roof and road/square deformation joint structure schematic diagram according to the embodiment of the present invention；
Attached drawing 4 is the first floor or basement roof and road/square deformation joint construction internal structure according to the embodiment of the present invention
Schematic diagram.
Specific implementation mode
The specific implementation mode of the present invention is described in detail below in conjunction with the accompanying drawings, but is not intended to limit the present invention's
Protection domain.
The declaratives of attached drawing 1 are referring to background technology part.
Referring to attached drawing 2, a kind of first floor or basement roof and road/square deformation joint, including in buried rubber fastening band
(1), reinforcing bar steel plate (2), pre-buried drawing-in wire screwed hose (3), expansion joint (4), waterproof layer (5) and waterproofing unction (6), institute
Buried rubber fastening band (1) is welded and fixed with reinforcing bar with steel plate (2) in stating, and it is described in buried rubber fastening band (1) have
Hole is deformed, height is arranged according to the stretching being subject in malformation and failure by shear power, buried rubber fastening band in described
(1) center is overlapped with the center line of the deformation joint, and the waterproof layer (5) includes two layers, respectively outdoor water-proof layer and two
Road waterstop, the first layer outdoor water-proof layer receive side and overlap joint excessively tightly, form cushion rubber closing, separated thicker backfill
Ponding oozes and looks for slope to drain ponding in structural slab upper edge seam longitudinal direction down in layer, and the second layer waterproof layer is structural slab in seam
Pre-buried twice waterstop simultaneously takes fixation pouring the when of smashing concrete, and the waterproofing unction (6) is for tamping the fixed waterproof layer
(5) gap between the expansion joint (4), the pre-buried drawing-in wire screwed hose (3) are mounted on according to floor location setting
Immediately below reinforcing bar steel plate (2).
Referring to attached drawing 3-4, which further includes aluminium alloy pedestal (7), back-fire relief band (8), metal expanded anchor bolt (9), no
The stainless steel plate corollary apparatus (12) of rust steel slide bar (10), gap-filling glue (11) and reinforcing bar steel plate (2), the stainless steel plate are matched
Covering device (12) is arranged at the top of deformation joint, and the aluminium alloy pedestal (7) is located at below the stainless steel plate corollary apparatus (12)
And fill in deformation joint, gap-filling glue (11) landfill is in the aluminium alloy pedestal (7) and the stainless steel plate with suit
Between setting (12), the stainless steel slide bar (10) is suspended to above the back-fire relief band (8), is used for the deformation of coordination structure plate, institute
It states back-fire relief band (8) by A grades of requirements to be arranged, the metal expanded anchor bolt (9) is M6 types ,@300 and interlaced arrangement.
Refer to the attached drawing 2-3, stainless steel plate corollary apparatus (12) include foamed plastic rod, for the sealing of joint filling sealing function
Cream, the first polyphenyl lath being arranged outside deformation joint and the second polyphenyl lath being arranged inside deformation joint, in buried rubber
Glue waterstop, gap of the region that the sealing compound joint filling seals between the first polyphenyl lath and the second polyphenyl lath.
The construction method of the first floor or basement roof and road/square deformation joint, for solving road square crack common fault and
It carries out waterproof and pipeline effectively connects, include the following steps：
Step 1 installs reinforcing bar with steel plate (2) referring to attached drawing 2, by structural slab flange to pushing up or road surface, if original structure plate is not
To top, concrete is poured to top by bar planting, the thicker backfill layer in expansion joint (4) both sides is separated by waterproofing unction (6)；
Step 2, in flared end portions set aside pre-embedded drawing-in wire screwed hose (3), to be docked with the pipeline in structural slab,
Solve the problems, such as that crossline is easy to destroy because of deformation in seam；
Step 3 implements tight waterproof referring to attached drawing 3：Outdoor water-proof layer is tightly received side and overlapped by first of waterproof
Degree forms cushion rubber closing, has separated ponding in thicker backfill layer and has oozed down and look for slope to arrange ponding in structural slab upper edge seam longitudinal direction
It walks, second waterproof is buried rubber fastening band (1) in the pre-buried twice of structural slab in seam, and takes fixation to arrange pouring the when of smashing concrete
It applies, to ensure that indoor suspended ceiling, pipeline and metope are not violated by water enchroachment (invasion).
Step 4, referring to attached drawing 4, installation stainless steel plate corollary apparatus (12) aluminium alloy base band (7), back-fire relief band (8) are stitching
The deformation quantity of the top design device with slide bar, that is, stainless steel slide bar (10) coordination structure plate, is connected by metal expanded anchor bolt (9)
Gap after each structural member by gap-filling glue (11) filling expansion joint (11) between component.
In the present embodiment work progress it should be noted that the problem of include：
1, material：Water-proof concrete：C35, seepage-resistant grade P8, reinforcing bar are diameter HRB400.
2, it must conscientiously be carried out by design and specification and dock closure (including waterstop with deformation joint strong outside east and west sides room
Effective overlap joint>=300 close with the mutual firm connection sealing of the concrete, reinforcing bar, anchor in the face of replacement of the old and the new), from now on to guarantee
Each water-tight impermeable pipe fitting position of node, former outer wall of basement deformation joint takes measures to ensure compliance with design and specification is wanted
It asks, it must not percolating water.Obtain 2 layers of indoor flooring building elevation, 2 layers of outdoor floor structure absolute altitude these important sizes, deformation
Seam is implanted into former floor according to specification, and 10d is mutually welded with former floor muscle, anchors into new poured concrete 500, and 200 are longitudinally extended along seam, if meeting sealing
Band bending, while former floor rejects 100 thickness, retains former floor muscle,
3, waterstop, in buried rubber fastening band performance see national standard 10J301 because in malformation waterstop be easy
It is stretched and failure by shear, should suitably increase the deformation hole height that rubber fastening band itself carries, the present embodiment node sealing
Band performance indicator referring to national standard 04CJ01-1, in buried rubber fastening band (1) both ends be welded and fixed with steel plate (2) with reinforcing bar.
4, basement roof (road) practice：(1) 60 thick particulate formula asphalt concrete pavement；(2) 200 thickness 1：2：7 lime：
Flyash：Graded sand and stone is compacted；(3) 50 thickness C20 pea gravel concreten protective layers；(4) 10 thick low grade mortars；(5)>=2.0 is thick
Polyurethane water-proof paint；(6) 20 thickness 1：2.5 cement mortar screeding；(7) the thick light collection aggregate of thinnest part 2.0, and look for slope；(8) prevent
Water roof support with reinforced concrete.
5, every process self-test and must could carry out next process after the stringent minute inspection of management passes through.
The upper road/square cracking common fault in seam top can be solved using the scheme of the present embodiment；Solve the problems, such as anti-seep water and
Various traversing pipe lines stitch the problem not broken, are deformed using commensurate structure, to ensure that floor or more is water-tight, road/square
Face is not cracked and traversing pipe line is not damaged by deformation.Road/square ground is no longer cracked, attractive and durable, waterproof details, conscientiously
Indoor pipeline, furred ceiling, metope is protected not to be damaged, crossline concealed work has reliable guarantee, finally obtains preferable warp
Ji and social benefit.
It is provided for the embodiments of the invention technical solution above to be described in detail, specific case used herein
The principle and embodiment of the embodiment of the present invention are expounded, the explanation of above example is only applicable to help to understand this
The principle of inventive embodiments；Simultaneously those of ordinary skill in the art, according to an embodiment of the invention, specific implementation mode with
And there will be changes in application range, in conclusion the content of the present specification should not be construed as limiting the invention.
Claims (4)
1. a kind of first floor or basement roof and road/square deformation joint, it is characterised in that including：In buried rubber fastening band
(1), reinforcing bar steel plate (2), pre-buried drawing-in wire screwed hose (3), expansion joint (4), waterproof layer (5) and waterproofing unction (6), institute
Buried rubber fastening band (1) is welded and fixed with reinforcing bar with steel plate (2) in stating, and it is described in buried rubber fastening band (1) have
Hole is deformed, height is arranged according to the stretching being subject in malformation and failure by shear power, buried rubber fastening band (1) in described
Center overlapped with the center line of the deformation joint, the waterproof layer (5) include two layers, respectively outdoor water-proof layer and twice are stopped
Water band, the first layer outdoor water-proof layer receive side and overlap joint excessively tightly, form cushion rubber closing, separated in thicker backfill layer
Ponding oozes and looks for slope to drain ponding in structural slab upper edge seam longitudinal direction down, and the second layer waterproof layer is that structural slab is pre-buried in seam
Twice waterstop simultaneously takes fixation pouring the when of smashing concrete, the waterproofing unction (6) for tamp the fixed waterproof layer (5) with
Gap between the expansion joint (4), the pre-buried drawing-in wire screwed hose (3) are mounted on the steel according to floor location setting
Immediately below muscle steel plate (2).
2. a kind of first floor according to claim 1 or basement roof and road/square deformation joint, it is characterised in that also wrap
Aluminium alloy pedestal (7) is included, back-fire relief band (8), metal expanded anchor bolt (9), stainless steel slide bar (10), gap-filling glue (11) and reinforcing bar are used
The stainless steel plate corollary apparatus (12) of steel plate (2), the stainless steel plate corollary apparatus (12) are arranged at the top of deformation joint, the aluminium
Alloy pedestal (7) is located at below the stainless steel plate corollary apparatus (12) and fills in deformation joint, and the gap-filling glue (11) is filled out
It is embedded between the aluminium alloy pedestal (7) and the stainless steel plate corollary apparatus (12), stainless steel slide bar (10) suspention
Above the back-fire relief band (8), it is used for the deformation of coordination structure plate, the back-fire relief band (8) to be arranged by A grades of requirements, the metal
Expanded anchor bolt (9) is M6 types ,@300 and interlaced arrangement.
3. a kind of first floor according to claim 2 or basement roof and road/square deformation joint, it is characterised in that：It is described
Stainless steel plate corollary apparatus (12) includes foamed plastic rod, the sealing compound for joint filling sealing function, setting outside deformation joint
The first polyphenyl lath and be arranged inside deformation joint the second polyphenyl lath, in buried rubber fastening band, the sealing compound
Gap of the region of joint filling sealing between the first polyphenyl lath and the second polyphenyl lath.
4. a kind of construction party according to any first floors or basement roof and road/square deformation joint of claim 1-3
Method effectively connects for solving road square cracking common fault and progress waterproof and pipeline, includes the following steps：
Step 1, installation reinforcing bar is with steel plate (2), by structural slab flange to pushing up or road surface, if original structure plate passes through bar planting less than top
Concrete is poured to top, the thicker backfill layer in expansion joint (4) both sides is separated by waterproofing unction (6)；
Step 2 to be docked with the pipeline in structural slab, is solved in flared end portions set aside pre-embedded drawing-in wire screwed hose (3)
The problem of crossline is easy to destroy because of deformation in seam；
Step 3 implements tight waterproof：Outdoor water-proof layer is tightly received side and overlaps excessive, formation cushion rubber envelope by first of waterproof
It closes, has separated ponding in thicker backfill layer and oozed down and look for slope to drain ponding in structural slab upper edge seam longitudinal direction, second waterproof
For buried rubber fastening band (1) in the pre-buried twice of structural slab in seam, and fixation is taken pouring the when of smashing concrete, to ensure room
Interior furred ceiling, pipeline and metope are not violated by water enchroachment (invasion).
Step 4, installation stainless steel plate corollary apparatus (12) aluminium alloy base band (7), back-fire relief band (8), in the design of seam top with slide bar
The deformation quantity of device, that is, stainless steel slide bar (10) coordination structure plate passes through after connecting each structural member by metal expanded anchor bolt (9)
Gap-filling glue (11) fills the gap of expansion joint (11) between component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810398685.8A CN108642996B (en) | 2018-04-28 | 2018-04-28 | Deformation joint for first floor or basement roof and road square and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810398685.8A CN108642996B (en) | 2018-04-28 | 2018-04-28 | Deformation joint for first floor or basement roof and road square and construction method thereof |
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| Publication Number | Publication Date |
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| CN108642996A true CN108642996A (en) | 2018-10-12 |
| CN108642996B CN108642996B (en) | 2021-02-09 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110984240A (en) * | 2019-11-19 | 2020-04-10 | 中冶天工集团有限公司 | Fixing device and fixing method for buried steel-edged rubber water stop in underground structure |
| CN111636273A (en) * | 2020-06-09 | 2020-09-08 | 中国建筑第八工程局有限公司 | Horizontal waterproof deformation joint structure and construction method thereof |
| CN112941994A (en) * | 2021-01-29 | 2021-06-11 | 广州市市政工程设计研究总院有限公司 | Urban highway overpass municipal transformation structure |
| CN113481787A (en) * | 2021-08-04 | 2021-10-08 | 长春市市政工程设计研究院 | Asphalt pavement assembled base course and method for preventing asphalt pavement assembled base course reflection cracks |
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| CN207048084U (en) * | 2017-08-16 | 2018-02-27 | 扬州市润泽建设工程有限公司 | A kind of buried type waterproof structure for deformation seams |
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| CN1570281A (en) * | 2004-01-08 | 2005-01-26 | 徐斌 | Expansion joint apparatus for ultra large yield resisting comb type bridge |
| KR20050090266A (en) * | 2004-03-08 | 2005-09-13 | 주식회사 동아기술공사 | A flexible connection structure of a bridge using expandable rubber |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110984240A (en) * | 2019-11-19 | 2020-04-10 | 中冶天工集团有限公司 | Fixing device and fixing method for buried steel-edged rubber water stop in underground structure |
| CN111636273A (en) * | 2020-06-09 | 2020-09-08 | 中国建筑第八工程局有限公司 | Horizontal waterproof deformation joint structure and construction method thereof |
| CN112941994A (en) * | 2021-01-29 | 2021-06-11 | 广州市市政工程设计研究总院有限公司 | Urban highway overpass municipal transformation structure |
| CN113481787A (en) * | 2021-08-04 | 2021-10-08 | 长春市市政工程设计研究院 | Asphalt pavement assembled base course and method for preventing asphalt pavement assembled base course reflection cracks |
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| Publication number | Publication date |
|---|---|
| CN108642996B (en) | 2021-02-09 |
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