CN107795142A - Existing building exterior-wall heat insulation integral structure and construction method - Google Patents
Existing building exterior-wall heat insulation integral structure and construction method Download PDFInfo
- Publication number
- CN107795142A CN107795142A CN201711108756.8A CN201711108756A CN107795142A CN 107795142 A CN107795142 A CN 107795142A CN 201711108756 A CN201711108756 A CN 201711108756A CN 107795142 A CN107795142 A CN 107795142A
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- Prior art keywords
- connecting tube
- surface layer
- wall
- laid
- existing
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- 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
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- 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
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
Abstract
The invention discloses a kind of existing building exterior-wall heat insulation integral structure to include existing wall, warming plate and surface layer, the outside of existing wall is laid on the inside of the warming plate, it is connected on the outside of warming plate with surface layer, longitudinal direction is laid with latticed bar-mat reinforcement inside the surface layer；The circular port communicated is reserved with inside the existing wall, warming plate and surface layer, connecting tube is laterally laid with circular port；The end face that connecting tube is laid in existing wall uniformly offers fine crack, and the end that the connecting tube is provided with fine crack is laid with pipe pad, and the connecting tube is laid in one end of surface layer through bar-mat reinforcement and is longitudinally laid with fixed steel bars.Present invention also offers existing building exterior-wall heat insulation integral structure construction method, including following process：Drilling, connecting tube and pipe pad, grouting, sticking heat-preservation plate and assembling reinforcement net are installed, surface layer is smeared and maintenance.The present invention realize existing building exterior-wall heat insulation with it is structure-integrated, ensure that external wall outer insulation and structure same life-span.
Description
Technical field
The present invention relates to technical field of buildings, more particularly to existing building exterior-wall heat insulation integral structure and construction method.
Background technology
With the demand for development of national energy-saving policy, domestic construction outer wall heat preservation system develops rapidly, existing building exterior wall
Reducing energy consumption is the emphasis of the current construction industry energy-saving and emission-reduction in China, and the object of existing building external wall energy-saving transformation mainly not in the past
The building of exterior-wall heat insulation is done, exterior-wall heat insulation, the building that exterior-wall heat insulation comes off have been done although also having；Outside conventional
Wall external thermal insulation way is all directly to carry out the stickup of warming plate in wall outer side, and such a way has problems with：Service life
Short (generally 25 years), fire protecting performance is bad, and cannot be guaranteed the safety of binding face tile；Outside existing building proposed by the present invention
The method of wall heat preservation energy-saving transformation, it is possible to achieve existing building exterior-wall heat insulation is with structure-integrated, guarantee external wall outer insulation and knot
In the structure same life-span, reach《Code for fire protection design of buildings》The fire protecting performance of GB50016 requirements.
The content of the invention
The present invention is in view of the shortcomings of the prior art and defect, there is provided a kind of existing building exterior-wall heat insulation integral structure
And construction method, realize existing building exterior-wall heat insulation with it is structure-integrated, ensure that external wall outer insulation and structure same life-span.
To realize the purpose, the technical solution adopted in the present invention is：
A kind of existing building exterior-wall heat insulation integral structure, including existing wall, warming plate and surface layer, the inner side of the warming plate
The outside of existing wall is laid in, is connected on the outside of warming plate with surface layer, longitudinal direction is laid with latticed reinforcing bar inside the surface layer
Net；Be reserved with the circular port communicated inside the existing wall, warming plate and surface layer, the both ends of the circular port without departing from
The both sides of existing wall and surface layer, connecting tube is laterally laid with circular port；The connecting tube is round tube, and connecting tube is laid in
The end face of existing wall uniformly offers fine crack, and the connecting tube is laid with the first circular hole, connecting tube in the right side portion of fine crack
The side for being laid in surface layer is laid with the second circular hole；The end that the connecting tube is provided with fine crack is laid with pipe pad, the pipe pad
For the small hollow round table shape in the big one side in area one side, the section of pipe pad is in isosceles trapezoid；The connecting tube is laid in the one of surface layer
Hold through bar-mat reinforcement and be longitudinally laid with fixed steel bars.
Further, the length of the connecting tube is less than existing wall, warming plate and surface thickness sum.
Further, the number that the connection end surfaces open up fine crack is eight, and the depth of the fine crack is 20mm.
Further, the diameter of the big side of pipe pad area is equal with the external diameter of connecting tube；The small side of pipe pad area
Diameter is less than the external diameter of connecting tube.
Further, laying interval of the connecting tube on existing wall is not less than 900mm.
A kind of existing building exterior-wall heat insulation integration knot based on a kind of above-mentioned existing building exterior-wall heat insulation integral structure
Structure construction method, including following process：
A) drill, connecting tube fixing hole, diameter and the connecting tube interference fits of the fixing hole, to fixation are bored on existing wall
Hole carries out reaming close at existing wall inner side, and size and the pipe pad of reaming coordinate；
B) connecting tube and pipe pad are installed, pipe pad is placed on into connecting tube fine crack end, the fixation that connecting tube is inserted on existing wall
Kong Zhong, and it is pushed into fixing hole bottom；After connecting tube and pipe pad promote fixing hole bottom, the exposed junction of connecting tube is hit with tup,
Connecting tube has fine crack end spreading in the presence of pipe pad, and the connecting tube of spreading forms anchoring in fixing hole；
C) it is in the milk, is in the milk using grouting material in fixing hole, grouting material is laid in the anchoring position of fixing hole, and grout penetration is many
In 100mm；
D) sticking heat-preservation plate and assembling reinforcement net, parked 7 days after grouting, in existing wall outer side sticking heat-preservation plate, in warming plate
Interior assembling reinforcement net；And it is placed in the right-hand member of connecting tube, insertion fixed steel bars on the outside of bar-mat reinforcement；
E) surface layer is smeared, and surface layer is smeared using haydite concrete, and haydite concrete is constructed when environment temperature is higher than 0 DEG C,
Surface layer is smeared and made two bites at a cherry, and after first time surface layer is smeared, before treating haydite concrete initial set, carries out second of surface layer painting
Smear, receive face troweling after the completion of smearing in time；
F) surface layer conserves, and when environment temperature is less than 0 DEG C, the facing concrete after the completion of smearing takes Insulation to concrete
Intensity reaches C10；If environment temperature is higher than 0 DEG C, surface layer is covered in the 12h after smearing and moisture-keeping maintaining is many
In 14 days.
Further, during the drilling, medial surface of the fixing hole away from existing wall is no less than 40mm, two-way of fixing hole
Away from no more than 1000mm.
Further, during the painting float coat, C25 haydite concrete, haydite concrete are not less than using strength grade
Density is not more than 1600 ㎏/m3；First time surface layer is smeared, and smearing thickness is thickness needed for covering bar-mat reinforcement；Second of surface layer applies
Smear, smearing thickness 20mm.
The beneficial effects of the invention are as follows：
1. existing building exterior-wall heat insulation integral structure of the present invention and construction method employ connecting tube as existing wall, insulation
The connecting elements of plate and surface layer, connecting tube is set to linear pattern in existing wall, warming plate and surface layer, is connected by the design of pipe pad
Take over one end and form anchoring with existing wall, with forming fixation through bar-mat reinforcement insertion fixed steel bars, this way exists the other end
It is all suitable in all types of existing walls, existing wall, warming plate and surface layer is connected by this close structure, increased both
There is the anti-shearing area of wall, so as to enhance the fastness of connecting tube, also increase the fastness of warming plate, and reduce and split
May caused by seam；
2. the construction method that existing building exterior-wall heat insulation integral structure of the present invention and construction method use is on existing wall
Connecting tube is set, and this method is small to the destructive power of existing wall, and connector is set more accurate, while ensure that connector is set
The fastness put and not crooked, is easy to the construction of follow-up warming plate and facing concrete, and connecting tube is uniform in existing surface of wall
Lay, firmly existing wall, warming plate and surface layer are closely connected, extend the life-span of wall insulated board；The present invention reduces
The difficulty that connector is set in existing wall, working procedure is terse, solid and reliable, convenient and swift；Realize outside existing building
Wall is incubated with structure-integrated, guarantee external wall outer insulation and structure same life-span, is reached《Code for fire protection design of buildings》GB50016 will
The fire protecting performance asked.
Brief description of the drawings
Fig. 1 is the main structure schematic diagram of existing building exterior-wall heat insulation integral structure of the present invention.
Fig. 2 is the structural representation of the connecting tube of existing building exterior-wall heat insulation integral structure of the present invention and construction method.
Fig. 3 is the A of connecting tube in existing building exterior-wall heat insulation integral structure of the present invention and construction method to structural representation
Figure.
Fig. 4 is the cross-sectional structure signal of existing building exterior-wall heat insulation integral structure of the present invention and the pipe pad of construction method
Figure.
Fig. 5 is the mounting structure schematic diagram for boring fixing hole in the embodiment of the present invention 2 in process a.
Fig. 6 is the mounting structure schematic diagram of reaming in process a in the embodiment of the present invention 2.
Fig. 7 is the installation connecting tube of process b in the embodiment of the present invention 2 and the mounting structure schematic diagram of pipe pad.
Fig. 8 is the mounting structure schematic diagram being in the milk in the embodiment of the present invention 2 in process c.
Fig. 9 is the mounting structure schematic diagram of the sticking heat-preservation plate in process d in the embodiment of the present invention 2.
In figure marked as：1 is existing wall, and 2 be pipe pad, and 3 be connecting tube, and 4 be warming plate, and 5 be bar-mat reinforcement, and 6 be fixation
Reinforcing bar, 7 be surface layer, and 8 be fine crack, and 9 be the first circular hole, and 10 be the second circular hole, and 11 be fixing hole.
Embodiment
Below in conjunction with the accompanying drawings and embodiment is described in further detail to the present invention：
Embodiment 1：As shown in FIG. 1 to 3, a kind of existing building exterior-wall heat insulation integral structure, including existing wall 1, insulation
Plate 4 and surface layer 7, the inner side of the warming plate 4 are laid in the outside of existing wall 1, and the outside of warming plate 4 is connected with surface layer 7, described
The inside of surface layer 7 longitudinal direction is laid with latticed bar-mat reinforcement 5；Phase is reserved with inside the existing wall 1, warming plate 4 and surface layer 7
Logical circular port, the both ends of the circular port are laterally laid with without departing from the both sides of existing wall 1 and surface layer 7 in circular port
Connecting tube 3；The connecting tube 3 is round tube, and the end face that connecting tube 3 is laid in existing wall 1 uniformly offers fine crack 8, described
The number that the end face of connecting tube 3 opens up fine crack 8 is eight, and the depth of the fine crack 8 is 20mm；The connecting tube 3 is on the right side of fine crack 8
Edge position is laid with the first circular hole 9, and the side that connecting tube 3 is laid in surface layer 7 is laid with the second circular hole 10；First circular hole 9 and
Two circular holes 10 are used for Permeation grouting material and the concrete of surface layer 7 so that connecting tube 3 and wall connecting are more firm；The connecting tube 3
End provided with fine crack 8 is laid with pipe pad 2, and the pipe pad 2 is the area small hollow round table shape in big one side on one side, pipe pad 2
Section is in isosceles trapezoid；The diameter of the big side of the area of pipe pad 2 is equal with the external diameter of connecting tube 3；The small side of the area of pipe pad 2
Diameter is less than the external diameter of connecting tube 3；The length of the connecting tube 3 is less than existing wall 1, warming plate 4 and the thickness sum of surface layer 7；
The connecting tube 3 is laid in one end of surface layer 7 through bar-mat reinforcement 5 and is longitudinally laid with fixed steel bars 6；The connecting tube 3 was both
There is the laying interval on wall 1 to be not less than 900mm.
As a kind of embodiment, in the present embodiment, a diameter of 30mm of the connecting tube 3 of selection, wall thickness 3mm,
A diameter of 20mm of one circular hole 9, a diameter of 9mm of the second circular hole 10, a diameter of 30mm of the big side of area of the pipe pad 2,
A diameter of 20mm of the small side of area, width 10mm.
Embodiment 2：The existing building exterior wall based on existing building exterior-wall heat insulation integral structure is protected as shown in Fig. 4~Fig. 9
Warm integral structure construction method, including following process：
A) drill, the fixing hole 11 of connecting tube 3 is bored on existing wall 1, diameter and the transition of connecting tube 3 of the fixing hole 11 are matched somebody with somebody
Close, reaming is carried out close at the existing inner side of wall 1 to fixing hole 11, size and the pipe pad 2 of reaming coordinate；During drilling, fixing hole
11 medial surfaces away from existing wall 1 are no less than 40mm, and the two-way spacing of fixing hole 11 is not more than 1000mm.
B) connecting tube 3 and pipe pad 2 are installed, pipe pad 2 is placed on into connecting tube 3 end of fine crack 8, and connecting tube 3 is inserted into existing wall
In fixing hole 11 on body 1, and it is pushed into the bottom of fixing hole 11；After connecting tube 3 and pipe pad 2 promote 11 bottom of fixing hole, tup is used
The exposed junction of connecting tube 3 is hit, connecting tube 3 has the end of fine crack 8 spreading in the presence of pipe pad 2, and the connecting tube 3 of spreading is in fixing hole
Anchoring is formed in 11；
C) it is in the milk, is in the milk using grouting material in fixing hole 11, grouting material is laid in the anchoring position of fixing hole 11, grout penetration
No less than 100mm；
D) sticking heat-preservation plate 4 and assembling reinforcement net 5, parked 7 days after grouting, in the existing outside sticking heat-preservation plate 4 of wall 1, are being protected
Assembling reinforcement net 5 in warm plate 4；And it is placed in the outside of bar-mat reinforcement 5 in the right-hand member of connecting tube 3, insertion fixed steel bars 6；
E) surface layer 7 is smeared, and surface layer 7 is smeared using haydite concrete, and haydite concrete is applied when environment temperature is higher than 0 DEG C
Work, surface layer 7 are smeared and made two bites at a cherry, and after first time surface layer 7 is smeared, before treating haydite concrete initial set, carry out second of face
Layer is smeared, and receives face troweling after the completion of smearing in time；When applying float coat 7, C25 haydite concrete is not less than using strength grade,
The haydite concrete density is not more than 1600 ㎏/m3；First time surface layer 7 is smeared, and smearing thickness is thick needed for covering bar-mat reinforcement 5
Degree；Second of surface layer 7 is smeared, smearing thickness 20mm.
F) surface layer 7 conserves, and when environment temperature is less than 0 DEG C, the concrete of surface layer 7 after the completion of smearing takes Insulation extremely
Concrete strength reaches C10；If environment temperature is higher than 0 DEG C, simultaneously moisturizing is covered to surface layer 7 in the 12h after smearing
Maintenance is no less than 14 days.
As a kind of embodiment, in the present embodiment, the bar-mat reinforcement 5 of selection using the two-way concrete slab welded mesh of 4@of Φ 100,
The model of fixed steel bars 6L=100mm.
Table 1 is《Code for fire protection design of buildings》GB50016-2006 is provided：The combustibility of building member and fire resisting pole
Limit (h)；In the existing wall thermal insulation structure construction of the present embodiment, concrete heat-insulating curtain wall presses GB/T 9978.4-2008《Building
The part of component fire resistance test method the 4th：The particular/special requirement of load bearing vertical partition member》Examine, fire resistance is more than 4.00h, full
The standard of sufficient fire protection requirement.
Table 1
Embodiment described above, simply presently preferred embodiments of the present invention, not limits practical range of the invention,
Therefore the equivalent change or modification that all construction, feature and principles according to described in the scope of the claims of the present invention are done, this hair all should be included in
In bright claim.
Claims (8)
1. a kind of existing building exterior-wall heat insulation integral structure, including existing wall（1）, warming plate（4）And surface layer（7）, it is special
Sign is, the warming plate（4）Inner side be laid in existing wall（1）Outside, warming plate（4）Outside and surface layer（7）Connection,
The surface layer（7）Internal longitudinal direction is laid with latticed bar-mat reinforcement（5）；The existing wall（1）, warming plate（4）And surface layer（7）
Inside is reserved with the circular port communicated, and the both ends of the circular port are without departing from existing wall（1）And surface layer（7）Both sides,
Connecting tube is laterally laid with circular port（3）；The connecting tube（3）For round tube, connecting tube（3）It is laid in existing wall（1）
End face uniformly offer fine crack（8）, the connecting tube（3）In fine crack（8）Right side portion be laid with the first circular hole（9）, even
Adapter（3）It is laid in surface layer（7）Side be laid with the second circular hole（10）；The connecting tube（3）Provided with fine crack（8）End
It is laid with pipe pad（2）, the pipe pad（2）For the small hollow round table shape in the big one side in area one side, pipe pad（2）Section in isosceles ladder
Shape；The connecting tube（3）It is laid in surface layer（7）One end pass through bar-mat reinforcement（5）And longitudinally it is laid with fixed steel bars（6）.
2. existing building exterior-wall heat insulation integral structure according to claim 1, it is characterised in that the connecting tube（3）
Length be less than existing wall（1）, warming plate（4）And surface layer（7）Thickness sum.
3. existing building exterior-wall heat insulation integral structure according to claim 1, it is characterised in that the connecting tube（3）
End face opens up fine crack（8）Number be eight, the fine crack（8）Depth be 20mm.
4. existing building exterior-wall heat insulation integral structure according to claim 1, it is characterised in that the pipe pad（2）Face
The diameter and connecting tube of the big side of product（3）External diameter it is equal；Pipe pad（2）The diameter of the small side of area is less than connecting tube（3）It is outer
Footpath.
5. existing building exterior-wall heat insulation integral structure according to claim 1, it is characterised in that the connecting tube（3）
In existing wall（1）On laying interval be not less than 900mm.
A kind of 6. existing building exterior wall based on any existing building exterior-wall heat insulation integral structure described in claim 1-5
Heat insulation integrated construction method, it is characterised in that including following process：
a）Drilling, connecting tube is bored on existing wall（3）Fixing hole（11）, the fixing hole（11）Diameter and connecting tube（3）
Interference fits, to fixing hole（11）Reaming, the size and pipe pad of reaming are carried out on the inside of close to existing wall（2）Coordinate；
b）Connecting tube is installed（3）And pipe pad（2）, by pipe pad（2）It is placed on connecting tube（3）There is fine crack（8）End, by connecting tube（3）Insert
Enter the fixing hole on existing wall（11）In, and it is pushed into fixing hole（11）Bottom；Work as connecting tube（3）Fixing hole is promoted with pipe pad
（11）Behind bottom, connecting tube is hit with tup（3）Exposed junction, connecting tube（3）There is fine crack（8）End is in pipe pad（2）In the presence of rise
Open, the connecting tube of spreading（3）In fixing hole（11）It is middle to form anchoring；
c）Grouting, using grouting material in fixing hole（11）Interior grouting, grouting material are laid in fixing hole（11）Anchoring position, grouting
Depth is no less than 100mm；
d）Sticking heat-preservation plate（4）And assembling reinforcement net（5）, parked 7 days after grouting, in existing wall outer side sticking heat-preservation plate（4）,
In warming plate（4）Interior assembling reinforcement net（5）；And in connecting tube（3）Right-hand member, insert fixed steel bars（6）It is placed in bar-mat reinforcement（5）Outside
Side；
e）Surface layer（7）Smear, surface layer（7）Smeared using haydite concrete, haydite concrete is when environment temperature is higher than 0 DEG C
Construction, surface layer（7）Smearing makes two bites at a cherry, first time surface layer（7）After smearing, before treating haydite concrete initial set, the is carried out
Secondary surface layer（7）Smear, receive face troweling after the completion of smearing in time；
f）Surface layer（7）Maintenance, when environment temperature is less than 0 DEG C, the surface layer after the completion of smearing（7）Concrete takes Insulation extremely
Concrete strength reaches C10；If environment temperature is higher than 0 DEG C, to surface layer in the 12h after smearing（7）Covered and protected
Wet curing is no less than 14 days.
7. existing building exterior-wall heat insulation integral structure construction method according to claim 6, it is characterised in that the brill
Kong Shi, fixing hole（11）Medial surface away from existing wall is no less than 40mm, fixing hole（11）Two-way spacing be not more than 1000mm.
8. existing building exterior-wall heat insulation integral structure construction method according to claim 6, it is characterised in that the painting
Float coat（7）When, using haydite concrete of the strength grade not less than C25, haydite concrete density is not more than 1600 ㎏/m3；
First time surface layer（7）Smear, smearing thickness is covering bar-mat reinforcement（5）Required thickness；Second of surface layer（7）Smear, smearing thickness
For 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711108756.8A CN107795142A (en) | 2017-11-11 | 2017-11-11 | Existing building exterior-wall heat insulation integral structure and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711108756.8A CN107795142A (en) | 2017-11-11 | 2017-11-11 | Existing building exterior-wall heat insulation integral structure and construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107795142A true CN107795142A (en) | 2018-03-13 |
Family
ID=61535911
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711108756.8A Pending CN107795142A (en) | 2017-11-11 | 2017-11-11 | Existing building exterior-wall heat insulation integral structure and construction method |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111550077A (en) * | 2020-06-05 | 2020-08-18 | 中土大地国际建筑设计有限公司 | Fabricated anti-seismic reinforcing reconstruction structure and reconstruction construction method of existing building |
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| CN103774649A (en) * | 2012-10-26 | 2014-05-07 | 兰州大学 | Prestress anchor rod with inverted opening and prevented from being pulled out from anchor hole |
| CN204475323U (en) * | 2015-01-29 | 2015-07-15 | 武汉武大巨成结构股份有限公司 | The telescopic Inner bolt head of a kind of modified |
| CN106760080A (en) * | 2017-03-10 | 2017-05-31 | 河南省第建筑工程集团有限责任公司 | Rearmounted concrete heat-insulating Curtainwall connector and construction method |
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2017
- 2017-11-11 CN CN201711108756.8A patent/CN107795142A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110041441A1 (en) * | 2009-08-23 | 2011-02-24 | Thuan Bui | Fastener for lightweight concrete panel and panel assembly |
| CN103774649A (en) * | 2012-10-26 | 2014-05-07 | 兰州大学 | Prestress anchor rod with inverted opening and prevented from being pulled out from anchor hole |
| CN204475323U (en) * | 2015-01-29 | 2015-07-15 | 武汉武大巨成结构股份有限公司 | The telescopic Inner bolt head of a kind of modified |
| CN106760080A (en) * | 2017-03-10 | 2017-05-31 | 河南省第建筑工程集团有限责任公司 | Rearmounted concrete heat-insulating Curtainwall connector and construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111550077A (en) * | 2020-06-05 | 2020-08-18 | 中土大地国际建筑设计有限公司 | Fabricated anti-seismic reinforcing reconstruction structure and reconstruction construction method of existing building |
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Application publication date: 20180313 |