CN105863085A - External wall panel waterproof joint - Google Patents
External wall panel waterproof joint Download PDFInfo
- Publication number
- CN105863085A CN105863085A CN201610377284.5A CN201610377284A CN105863085A CN 105863085 A CN105863085 A CN 105863085A CN 201610377284 A CN201610377284 A CN 201610377284A CN 105863085 A CN105863085 A CN 105863085A
- Authority
- CN
- China
- Prior art keywords
- side fascia
- wall panel
- external wall
- upper side
- waterproof
- 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.)
- Pending
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Classifications
-
- 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
-
- 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
- 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
- E04B1/6806—Waterstops
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
Abstract
The invention belongs to the field of building structures and specifically discloses an external wall panel waterproof joint which comprises an upper external wall panel and a lower external wall panel, wherein the upper external wall panel and the lower external wall panel at least comprise an insulating layer and a concrete structure layer; a waterproof tongue-and-groove is formed in the connection interface between the upper external wall panel and the lower external wall panel; the end parts of the upper external wall panel and lower external wall panel are of a concrete structure; notches are formed at the bottom end of the upper external wall panel and the top end of the lower external wall panel; a grouting hole is formed in the upper external wall panel and/or the lower external wall panel; and waterproof slurry is poured into the notches through the grouting hole. According to the invention, in an assembly process of the wall panel, after the upper external wall panel and the lower external wall panel are put in place, the waterproof slurry is poured into the notches through the grouting hole in the upper external wall panel or lower external wall panel to form a layer of vertical waterproof layer, the outdoor rainwater can be effectively prevented from leaking indoors, and reliable waterproof guarantee is provided.
Description
Technical field
The invention belongs to building structure field, be specifically related to a kind of Side fascia waterproofing node.
Background technology
In assembled architecture industry, Side fascia uses prefabricated mode to carry out factorial praluction, then Assembling, thus
Standardization can be realized, and quality controllable, efficient quick.But, during the assembled in situ of precast wall panel, be to its stitching portion
Carry out water-proofing treatment, it is to avoid rainwater penetrates into indoor along the splicing seams of Side fascia, if infiltration phenomenon is serious simultaneously, connection will be caused
Loosening in position, life-time service causes effective bearing load ability of precast facade to decline, and brings great hidden dangers in project.Tradition
Waterproof being typically of out-hung panel break marine glue at seam crossing, the workload not only constructed is big, and marine glue is over time
There will be aging for a long time, finally result in the generation of drainage, affect water resistance and the construction quality of assembled architecture.
At present, Side fascia waterproof type generally uses tongue and groove waterproof, i.e. the junction moulding at wallboard has inner side height, outside low
The waterproof tongue and groove of the discrepancy in elevation, stop outdoor rain leak out to indoor, existing Side fascia application technology code i.e. use this mode to enter
Row is waterproof；In prior art, patent 205116466U discloses the waterproof construction of the cladding node of a kind of assembled architecture outer wall, and this is prevented
Water-bound is also mainly under prefabricated cladding Side fascia upper end and on the junction moulding of prefabricated cladding Side fascia lower end have inner side
The waterproof tongue and groove of the discrepancy in elevation high, that outside is low carries out water-proofing treatment.But, after Side fascia arranges waterproof tongue and groove, on the one hand it is unfavorable for
The transport of exterior wall internal partition, and during transport or construction, easily cause the destruction of waterproof tongue and groove, and which is the most uncomfortable
Close external wall insulation and the assembling of decoration panel, for Side fascia warming plate, during docking, easily knock bad guarantor
Temperature layer is as the part of tongue and groove tenon, thus affects waterproof effect, for decoration panel, owing to offering tongue-and-groove, and decoration
The architectural surface of the end of panel isolates and comes, and easily knocks bad in transport and docking operation, repairs difficulty, has a strong impact on attractive in appearance.
In sum, need exploitation badly a kind of simple, highly versatile, the Side fascia waterproofing node of good water-proof effect.
Summary of the invention
It is an object of the invention to provide a kind of simple, highly versatile, the Side fascia waterproofing node of good water-proof effect.
Above-mentioned purpose is to be achieved through the following technical solutions: a kind of Side fascia waterproofing node, including upper Side fascia and lower outside
Wallboard, described upper Side fascia and lower Side fascia at least include heat-insulation layer and concrete, described upper Side fascia and lower exterior wall
The linkage interface of plate is provided with waterproof tongue and groove, and described upper Side fascia is xoncrete structure with the end of lower Side fascia, described upper outside
The bottom of wallboard and the top of lower Side fascia are provided with notch, and described upper Side fascia and/or lower Side fascia are provided with injected hole, by institute
State injected hole and be perfused with waterproofing slurry in described notch.For thermal insulation external wall panel, it is all arranged to mix by the end of Side fascia
Xtah Crude Clay structure, is xoncrete structure at the waterproof tongue and groove i.e. arranged, and will not knock bad heat-insulation layer as tongue and groove during docking
The part of tenon, does not haves the problem knocking bad architectural surface simultaneously yet.During the assembling of wallboard, when upper Side fascia and lower outside
After wallboard dropping place, in described notch, it is perfused with waterproofing slurry by the injected hole being arranged in upper Side fascia or lower Side fascia,
Form one layer of vertical waterproof layer, can effectively stop outdoor rain to leak out to indoor, it is provided that reliable waterproof guarantee.Described groove
Mouth can be reserved during upper Side fascia is prefabricated, it is also possible to is to offer in installation process, for thermal insulation external wall panel, described
Notch is preferably provided at heat-insulation layer, so only needs bottom upper Side fascia and the heat-insulation layer at top of lower Side fascia during assembling
Dig up part and can form notch, simplify operational procedure, reduce difficulty of construction simultaneously.After having assembled, in order to improve waterproof effect
Really, marine glue closure can be used in the medial and lateral of upper Side fascia and the junction of lower Side fascia.Above-mentioned waterproof type both can be fitted
It is equally applicable to shear wall system for frame system, it is adaptable to upper close spelling structure between Side fascia and lower Side fascia, also fits
For the structure of splicing seams reserved between upper Side fascia and lower Side fascia, when using the second structure, preferably in described splicing
The inner side and outer side of seam is equipped with sealing member, it is to avoid waterproofing slurry leaks along splicing seams.The present invention use arrange waterproof tongue and groove with
And the measure of vertical waterproof layer, integrated control is being formed by grouting, thoroughly solve the waterproof problem of Side fascia, improve dress
Join the construction quality of formula building.
Further, described notch is extended to heat-insulation layer by the end face of Side fascia, and described waterproofing slurry is foam mortar or bubble
Foam concrete.Owing to end have employed xoncrete structure, i.e. it is not provided with heat-insulation layer, the heat insulation effect of so external panel wall system
Have a negative impact, use technique scheme, it is ensured that the hot bridge cut-off function of Side fascia in the node of the present invention.
Further, splicing seams, the inner side and outer side of described splicing seams it are reserved with between described upper Side fascia and lower Side fascia
It is equipped with sealing member, in described splicing seams, is perfused with waterproofing slurry by described injected hole.Described upper Side fascia and lower exterior wall
Splicing seams reserved between plate is enclosed by sealing member, after upper Side fascia assembly completes, by being arranged on upper Side fascia or lower exterior wall
Injected hole in plate is perfused with waterproofing slurry in described splicing seams, forms the waterproof layer of one layer of level, stops outdoor rain to be oozed
Leakage, to indoor, improves waterproof effect.
Further, described upper Side fascia and/or lower Side fascia are provided with plural injected hole.Owing to Side fascia has
Certain width, on the one hand only arranges an injected hole and is difficult to be filled up completely with the splicing seams between upper Side fascia and lower Side fascia
Closely knit, on the other hand arrange multiple hole can slip casting simultaneously, improve efficiency of construction.
Further, described upper Side fascia and/or lower Side fascia are provided with steam vent.It is arranged such, favourable during slip casting
The discharge of air in splicing seams.
Further, it is coated with adhesive bottom described sealing member or is provided with double faced adhesive tape.Being arranged such, beneficially sealing member is fixed
On lower Side fascia, it is to avoid during cornice sheathing dropping place, sealing member position changes, thus affect the sealing of sealing member.
Further, described sealing member is rectangle frame structure, and four limits of described sealing member match with the end face of lower Side fascia.
It is arranged such, easy construction, the surrounding of splicing seams is all enclosed simultaneously, improve sealing.
Further, the bottom surface of described upper Side fascia and the end face of lower Side fascia are matsurface.Be arranged such, waterproofing slurry with
The bottom of upper Side fascia and the top of lower Side fascia connect tightr.
Further, described wainscot sheathing top is provided with at least one blind hole.It is arranged such, during slip casting, described blind
Hole is perfused with slurry, so, the waterproof layer formed in splicing seams be connected on lower external wall panel structure the most firm.
Further, described injected hole is hollow hole or pre-buried hollow bushing.In the prefabrication process of described hollow hole wallboard
Loosing core formation, injected hole is preferably formed by the way of pre-buried hollow bushing, and molding is the easiest.
Accompanying drawing explanation
The accompanying drawing of the part constituting the present invention is used for providing a further understanding of the present invention, and the present invention's is schematic real
Execute example and illustrate for explaining the present invention, being not intended that inappropriate limitation of the present invention.
Fig. 1 is the sectional view of the Side fascia waterproofing node involved by one embodiment of the present invention；
Fig. 2 is the stereochemical structure sectional view of Side fascia waterproofing node involved in Fig. 1；
Fig. 3 is the sectional view of the Side fascia waterproofing node involved by another embodiment of the present invention.
In figure:
2 times Side fascia 3 sealing member 4 injected holes of Side fascia on 1
5 horizontal waterproof layer 6 discrepancy in elevation waterproof tongue and groove 7 tongue-and-groove 8 tenons
9 notch 10 vertical waterproof layer 20 heat-insulation layer 21 concrete
Detailed description of the invention
Describing the present invention below in conjunction with the accompanying drawings, the description of this part is only exemplary and explanatory, should not
Protection scope of the present invention is had any restriction effect.Additionally, those skilled in the art are according to the description of presents, can be right
In presents, the feature in embodiment and in different embodiment carries out respective combination.
The embodiment of the present invention is as follows, sees figures.1.and.2, a kind of Side fascia waterproofing node, including upper Side fascia 1 and lower outside
Wallboard 2, described upper Side fascia 1 and lower Side fascia 2 at least include heat-insulation layer 20 and concrete 21, described upper Side fascia 1
The linkage interface of lower Side fascia 2 is provided with waterproof tongue and groove, and described upper Side fascia 1 is concrete knot with the end of lower Side fascia 2
Structure, the bottom of described upper Side fascia 1 and the top of lower Side fascia 2 are provided with notch 9, described upper Side fascia 1 and/or lower Side fascia 2
It is provided with injected hole 4, in described notch 9, is perfused with waterproofing slurry by described injected hole 4.For thermal insulation external wall panel, by exterior wall
The end of plate is all arranged to xoncrete structure, is xoncrete structure at the waterproof tongue and groove i.e. arranged, during docking not
The bad heat-insulation layer 20 part as tongue and groove tenon 8 can be knocked, also do not have the problem knocking bad architectural surface simultaneously.The assembling of wallboard
During, when after upper Side fascia 1 and lower Side fascia 2 dropping place, by being arranged on the injected hole 4 in upper Side fascia 1 or lower Side fascia 2
In described notch 9, it is perfused with waterproofing slurry, forms one layer of vertical waterproof layer 10, can effectively stop outdoor rain to leak out to room
In, it is provided that reliable waterproof guarantee.Described notch 9 can be reserved during upper Side fascia 1 is prefabricated, it is also possible to is peace
Offering in process of assembling, for thermal insulation external wall panel, described notch 9 is preferably provided at heat-insulation layer 20, so only need during assembling by
Dig up part can form notch 9 with the heat-insulation layer 20 at top of lower Side fascia 2 bottom upper Side fascia 1, simplify operational procedure, with
Time reduce difficulty of construction.After having assembled, in order to improve waterproof effect, can be in the junction of upper Side fascia 1 and lower Side fascia 2
Medial and lateral use marine glue closure.Above-mentioned waterproof type had both gone for frame system and had been equally applicable to shear wall system, suitable
For the close spelling structure between upper Side fascia 1 and lower Side fascia 2, it is also applied between Side fascia 1 and lower Side fascia 2 reserved spelling
The structure of seam, when using the second structure, the preferably inner side and outer side at described splicing seams is equipped with sealing member 3, it is to avoid
Waterproofing slurry leaks along splicing seams.The present invention uses and arranges waterproof tongue and groove and forming arranging of vertical waterproof layer 10 by grouting
Execute, integrated control, thoroughly solve the waterproof problem of Side fascia, improve the construction quality of assembled architecture.Above-mentioned is waterproof
Slurry can be expansive mortar or expansive concrete, it is also possible to is foam mortar or foam concrete, be certainly not limited on
The waterproof material stated is it should be understood that arbitrarily go for the waterproof material of the present invention.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 1, described notch 9 is by the end face of Side fascia
Extending to heat-insulation layer 20, described waterproofing slurry is foam mortar or foam concrete.Owing to end have employed xoncrete structure, i.e.
Being not provided with heat-insulation layer 20, the heat insulation effect of so external panel wall system has a negative impact, and uses technique scheme, can protect
The hot bridge cut-off function of Side fascia in the node of the card present invention.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 1, described upper Side fascia 1 and lower Side fascia
Being reserved with splicing seams between 2, the inner side and outer side of described splicing seams is equipped with sealing member 3, by described injected hole 4 in described spelling
Seam is perfused with waterproofing slurry.Splicing seams reserved between described upper Side fascia 1 and lower Side fascia 2 is enclosed by sealing member 3, on
After Side fascia 1 assembly completes, irrigate in described splicing seams by being arranged on the injected hole 4 in upper Side fascia 1 or lower Side fascia 2
There is waterproofing slurry, form one layer of horizontal waterproof layer 5, stop outdoor rain to leak out to indoor, improve waterproof effect.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 3, described upper Side fascia 1 and/or lower outside
Wallboard 2 is provided with plural injected hole 4.Owing to Side fascia has certain width, on the one hand an injected hole 4 is only set
Being difficult to be filled up completely with closely knit by the splicing seams between upper Side fascia 1 and lower Side fascia 2, on the other hand arranging multiple hole can note simultaneously
Slurry, improves efficiency of construction.
On the basis of above-described embodiment, in another embodiment of the present invention, on described upper Side fascia 1 and/or lower Side fascia 2
It is provided with steam vent.It is arranged such, the discharge of air in favourable splicing seams during slip casting.
On the basis of above-described embodiment, in another embodiment of the present invention, be coated with bottom described sealing member 3 adhesive or
It is provided with double faced adhesive tape.Being arranged such, beneficially sealing member 3 is fixed on lower Side fascia 2, it is to avoid seal during cornice sheathing dropping place
Part 3 position changes, thus affects the sealing of sealing member 3.
On the basis of above-described embodiment, in another embodiment of the present invention, described sealing member 3 is rectangle frame structure, described
Four limits of sealing member 3 match with the end face of lower Side fascia 2.It is arranged such, easy construction, the surrounding of splicing seams is all enclosed simultaneously
Close, improve sealing.
On the basis of above-described embodiment, in another embodiment of the present invention, the bottom surface of described upper Side fascia 1 and lower Side fascia
The end face of 2 is matsurface.Being arranged such, waterproofing slurry is connected with the top of the bottom of upper Side fascia 1 and lower Side fascia 2 and more steps up
Close.
On the basis of above-described embodiment, in another embodiment of the present invention, it is blind that described wainscot sheathing top is provided with at least one
Hole.Be arranged such, during slip casting, described blind hole be perfused with slurry, so, in splicing seams formed waterproof layer with under
Connect the most firm in Side fascia 2 structure.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 1, described injected hole 4 is hollow hole or pre-
The hollow bushing buried.Loosing core in the prefabrication process of described hollow hole wallboard formation, injected hole 4 is preferably by pre-buried hollow bushing
Mode is formed, and molding is the easiest.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 1 and Fig. 2, described waterproof tongue and groove is lower wall
High, the waterproof tongue and groove of the discrepancy in elevation that outside is low inside plate.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 3, described waterproof tongue and groove includes being arranged on
The tenon 8 of lower Side fascia and the tongue-and-groove 7 being arranged on Side fascia, described tenon 8 stretches in described tongue-and-groove 7.Described tongue-and-groove 7 can
Be during upper Side fascia is prefabricated reserved, it is also possible to be that installation process is offered.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For Yuan, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a Side fascia waterproofing node, at least wraps including upper Side fascia and lower Side fascia, described upper Side fascia and lower Side fascia
Including heat-insulation layer and concrete, described upper Side fascia is provided with waterproof tongue and groove with the linkage interface of lower Side fascia, its feature
Being, the end of described upper Side fascia and lower Side fascia is xoncrete structure, the bottom of described upper Side fascia and lower Side fascia
Top is provided with notch, and described upper Side fascia and/or lower Side fascia are provided with injected hole, are filled in described notch by described injected hole
It is marked with waterproofing slurry.
Side fascia waterproofing node the most according to claim 1, it is characterised in that described notch is extended by the end face of Side fascia
To heat-insulation layer, described waterproofing slurry is foam mortar or foam concrete.
Side fascia waterproofing node the most according to claim 2, it is characterised in that between described upper Side fascia and lower Side fascia
Being reserved with splicing seams, the inner side and outer side of described splicing seams is equipped with sealing member, by described injected hole in described splicing seams
It is perfused with waterproofing slurry.
4. according to the Side fascia waterproofing node described in Claims 2 or 3, it is characterised in that described upper Side fascia and/or lower exterior wall
Plate is provided with plural injected hole.
5. according to the Side fascia waterproofing node described in Claims 2 or 3, it is characterised in that described upper Side fascia and/or lower exterior wall
Plate is provided with steam vent.
Side fascia waterproofing node the most according to claim 4, it is characterised in that be coated with adhesive bottom described sealing member
Or it is provided with double faced adhesive tape.
Side fascia waterproofing node the most according to claim 6, it is characterised in that described sealing member is rectangle frame structure, institute
The end face on four limits and lower Side fascia of stating sealing member matches.
Side fascia waterproofing node the most according to claim 7, it is characterised in that the bottom surface of described upper Side fascia and lower exterior wall
The end face of plate is matsurface.
Side fascia waterproofing node the most according to claim 8, it is characterised in that described wainscot sheathing top is provided with at least one
Blind hole.
Side fascia waterproofing node the most according to claim 9, it is characterised in that described injected hole is hollow hole or pre-buried
Hollow bushing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610377284.5A CN105863085A (en) | 2016-05-31 | 2016-05-31 | External wall panel waterproof joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610377284.5A CN105863085A (en) | 2016-05-31 | 2016-05-31 | External wall panel waterproof joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105863085A true CN105863085A (en) | 2016-08-17 |
Family
ID=56641744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610377284.5A Pending CN105863085A (en) | 2016-05-31 | 2016-05-31 | External wall panel waterproof joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105863085A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106284695B (en) * | 2016-08-25 | 2018-07-31 | 中国海洋石油总公司 | Steel construction cleans stuff up a crack construction technology |
| CN111764520A (en) * | 2020-06-30 | 2020-10-13 | 北新绿色住宅有限公司 | Fiber cement external wall panel lap joint seal structure |
| CN112983112A (en) * | 2021-03-08 | 2021-06-18 | 上海建工二建集团有限公司 | Prefabricated enclosure outer wall bottom connecting system and construction method thereof |
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| CN101806099A (en) * | 2010-03-12 | 2010-08-18 | 南通建筑工程总承包有限公司 | Vertical joint waterproofing node of exterior wall |
| CN201671189U (en) * | 2010-06-08 | 2010-12-15 | 中国京冶工程技术有限公司 | Rainwater seepage-preventing structure of precast concrete external wall panel |
| CN104963432A (en) * | 2015-06-17 | 2015-10-07 | 中民筑友有限公司 | Multilayer fabricated concrete wallboard structure system |
| CN204753896U (en) * | 2015-06-17 | 2015-11-11 | 中民筑友有限公司 | Multilayer assembled concrete panel structure system |
| CN205116466U (en) * | 2015-10-21 | 2016-03-30 | 长沙远大住宅工业集团有限公司 | Waterproof construction of node is hung futilely to assembly type structure outer wall |
-
2016
- 2016-05-31 CN CN201610377284.5A patent/CN105863085A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806099A (en) * | 2010-03-12 | 2010-08-18 | 南通建筑工程总承包有限公司 | Vertical joint waterproofing node of exterior wall |
| CN201671189U (en) * | 2010-06-08 | 2010-12-15 | 中国京冶工程技术有限公司 | Rainwater seepage-preventing structure of precast concrete external wall panel |
| CN104963432A (en) * | 2015-06-17 | 2015-10-07 | 中民筑友有限公司 | Multilayer fabricated concrete wallboard structure system |
| CN204753896U (en) * | 2015-06-17 | 2015-11-11 | 中民筑友有限公司 | Multilayer assembled concrete panel structure system |
| CN205116466U (en) * | 2015-10-21 | 2016-03-30 | 长沙远大住宅工业集团有限公司 | Waterproof construction of node is hung futilely to assembly type structure outer wall |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106284695B (en) * | 2016-08-25 | 2018-07-31 | 中国海洋石油总公司 | Steel construction cleans stuff up a crack construction technology |
| CN111764520A (en) * | 2020-06-30 | 2020-10-13 | 北新绿色住宅有限公司 | Fiber cement external wall panel lap joint seal structure |
| CN112983112A (en) * | 2021-03-08 | 2021-06-18 | 上海建工二建集团有限公司 | Prefabricated enclosure outer wall bottom connecting system and construction method thereof |
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Application publication date: 20160817 |
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