CN109024939B - Steel structure external wall heat insulation mortar enclosure system with drawknot piece and construction process thereof - Google Patents
Steel structure external wall heat insulation mortar enclosure system with drawknot piece and construction process thereof Download PDFInfo
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- CN109024939B CN109024939B CN201811024508.XA CN201811024508A CN109024939B CN 109024939 B CN109024939 B CN 109024939B CN 201811024508 A CN201811024508 A CN 201811024508A CN 109024939 B CN109024939 B CN 109024939B
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- 239000004570 mortar (masonry) Substances 0.000 title claims abstract description 181
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 113
- 239000010959 steel Substances 0.000 title claims abstract description 113
- 238000009413 insulation Methods 0.000 title claims abstract description 52
- 238000010276 construction Methods 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000008569 process Effects 0.000 title claims abstract description 19
- 239000010410 layer Substances 0.000 claims abstract description 218
- 238000005336 cracking Methods 0.000 claims abstract description 25
- 239000002344 surface layer Substances 0.000 claims abstract description 17
- 239000002585 base Substances 0.000 claims description 28
- 239000011248 coating agent Substances 0.000 claims description 16
- 238000000576 coating method Methods 0.000 claims description 16
- 239000011468 face brick Substances 0.000 claims description 13
- 238000004321 preservation Methods 0.000 claims description 11
- 239000003973 paint Substances 0.000 claims description 10
- 239000003513 alkali Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 238000005246 galvanizing Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 3
- 238000007790 scraping Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000010008 shearing Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 125000006850 spacer group Chemical group 0.000 description 3
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- -1 dirt Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- 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
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B1/762—Exterior insulation of exterior walls
-
- 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
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B1/762—Exterior insulation of exterior walls
- E04B1/7629—Details of the mechanical connection of the insulation to the wall
-
- 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
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B1/762—Exterior insulation of exterior walls
- E04B1/7637—Anchoring of separate elements through the lining to the wall
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
Abstract
The invention provides a steel structure external wall heat-insulating mortar enclosure system with a drawknot member and a construction process thereof. The steel structure outer wall heat-insulating mortar enclosure system with the drawknot piece comprises an interface mortar layer arranged on a steel structure base layer wall body, a bottom layer heat-insulating mortar layer arranged on the interface mortar layer, a middle layer heat-insulating mortar layer arranged on the bottom layer heat-insulating mortar layer, a surface layer heat-insulating mortar layer arranged on the middle layer heat-insulating mortar layer, an anti-cracking mortar layer arranged on the surface layer heat-insulating mortar layer and a facing layer arranged on the anti-cracking mortar layer; the base layer wall body is provided with a drawknot piece, the drawknot piece comprises a positioning strip and positioning teeth, the end parts of the positioning teeth are provided with positioning grooves, the positioning strip is used for hanging and fixing a first layer of steel wire mesh arranged on the bottom layer heat-insulating mortar layer, and the positioning grooves are used for hanging and fixing a second layer of steel wire mesh arranged on the middle layer heat-insulating mortar layer. The beneficial effects are as follows: the method is simple in principle, convenient to operate, capable of improving the overall construction quality of the steel structure external wall insulation system and providing better safety guarantee for the steel structure external wall insulation mortar enclosure system building.
Description
Technical Field
The invention relates to a steel structure outer wall and a construction process thereof, in particular to a steel structure outer wall heat-insulating mortar enclosure system with a drawknot piece and a construction process thereof.
Background
The steel structure is used as a novel green environment-friendly low-carbon building and is widely applied to industrial and civil buildings. Compared with other residential systems, the steel structure residential system mainly has the advantages of good structural ductility, light dead weight, realization of assembled construction, reduction of comprehensive cost and the like. With the deep industrialization of steel structure houses, energy-saving, environment-friendly, firm and attractive steel structure buildings are becoming one of the best choices of current green buildings. The heat preservation function of the steel structure outer wall is improved, the energy-saving and environment-friendly requirements of the steel structure building can be effectively met, and the aim is achieved in the current main mode at home and abroad through manually smearing or mechanically spraying heat preservation mortar.
Meanwhile, in order to meet the requirements of effective heat preservation and heat insulation, the construction thickness of the heat preservation mortar of the steel structure outer wall is usually more than or equal to 40mm, and even reaches 80mm. However, an excessively large construction thickness causes many problems in the use process of the thermal insulation mortar, such as hollowing, falling off, cracking, poor adhesion, etc., which may cause the thermal insulation function of the steel structure building to be impaired to some extent.
Therefore, how to meet the construction requirement of the heat-insulating mortar layer and improve the construction quality of the heat-insulating mortar is a key problem which needs to be researched and solved.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a steel structure external wall heat-insulating mortar enclosure system with a drawknot piece and a construction process thereof.
The invention provides a steel structure external wall heat-insulating mortar enclosure system with a drawknot piece, which has the technical scheme that:
the steel structure outer wall heat-insulating mortar enclosure system comprises an interface mortar layer arranged on a base layer wall body, a bottom heat-insulating mortar layer arranged on the interface mortar layer, a middle heat-insulating mortar layer arranged on the bottom heat-insulating mortar layer, a surface layer heat-insulating mortar layer arranged on the middle heat-insulating mortar layer, an anti-cracking mortar layer arranged on the surface layer heat-insulating mortar layer and a finish coat arranged on the anti-cracking mortar layer; the base layer wall body is provided with a drawknot piece, the drawknot piece comprises a positioning strip and positioning teeth, the end parts of the positioning teeth are provided with positioning grooves, the positioning strip is used for hanging and fixing a first layer of steel wire mesh arranged on a bottom layer heat-insulation mortar layer, and the positioning grooves are used for hanging and fixing a second layer of steel wire mesh arranged on a middle layer heat-insulation mortar layer.
The invention provides a steel structure external wall heat-insulating mortar enclosure system with a drawknot piece, which also comprises the following auxiliary technical schemes:
wherein, be provided with the gasket on the basic unit's wall body, the drawknot spare sets up on the gasket.
The drawknot piece is longitudinally arranged along the wall body and is connected through bolts.
The vertical distance between the drawknot pieces is 1500-2000mm, and the distance between the bolts is 500-1500mm; the bolt is a metal expansion bolt, and the diameter of the bolt is 6-12mm.
The cross section of the positioning groove is trapezoid or rectangular.
Wherein, the first layer of steel wire gauze and the second layer of steel wire gauze are transverse meshes with the width of 1700-2200mm which are formed by shearing hot galvanizing steel wire gauze.
Wherein the thickness of the interface mortar layer is 2-5mm; the thickness of the bottom thermal insulation mortar layer is 10-30mm; the thickness of the middle layer heat-insulating mortar layer is 10mm-30mm; the thickness of the surface layer heat-insulating mortar layer is 10-20mm; the thickness of the anti-cracking mortar layer is not less than 5mm.
The invention also provides a construction process of the steel structure external wall heat-insulating mortar enclosure system with the drawknot piece, which comprises the following steps:
(1) And (3) base layer treatment: processing the base wall body;
(2) Installing a drawknot piece on a base wall:
(3) Filling ribs into ash cakes: using thermal insulation mortar as a standard cake, then punching ribs, and checking verticality;
(4) Coating an interface mortar layer: firstly adding water into the interface mortar, uniformly stirring, and after no raw mortar powder clusters exist, scraping in full batch, so that the interface mortar layer covers all base layer walls;
(5) And (3) constructing a bottom thermal insulation mortar layer: coating the prepared thermal insulation mortar on an interface mortar layer;
(6) Hanging a first layer of steel wire mesh: the first steel wire mesh is sequentially hung on the drawknot piece from top to bottom and is bound and fixed on the bottom thermal insulation mortar layer;
(7) And (3) constructing a middle-layer heat-insulating mortar layer: coating the prepared thermal insulation mortar on an interface mortar layer;
(8) Hanging a second layer of steel wire mesh: hanging and binding the second layer of steel wire mesh on the drawknot piece in the same way as the first layer of steel wire mesh;
(9) And (3) surface layer heat-insulating mortar construction: coating the prepared thermal insulation mortar on the middle-layer thermal insulation mortar;
(10) And (3) construction of an anti-cracking mortar layer: laying anti-cracking mortar on the middle-layer heat-insulating mortar layer in advance, pressing the alkali-resistant mesh into the anti-cracking mortar layer, and then coating and bonding with the anti-cracking mortar;
(11) And (3) construction of a facing layer: the facing layer is a paint facing or a face brick facing; when the paint is decorated, flexible or elastic putty is adopted as the paint; when facing the face brick, the width of the joint of the face brick is not less than 5mm, and after the face brick is pasted for 24 hours, the joint mixture is used for joint filling.
In the step (2), when the surface of the base layer wall body is uneven, a gasket is adopted to adjust the flatness of the surface of the base layer wall body when the drawknot piece is installed, and then the base layer wall body is connected with the steel structure outer wall through bolts.
Before the step (2), sealing and waterproof treatment are carried out on the door and window opening, the pipeline wall penetrating opening, the plinth, the balcony, the deformation joint or the head collecting part of the heat preservation system of the parapet wall.
In the step (2), the drawknot member comprises a positioning strip and positioning teeth, wherein positioning grooves are formed in the end parts of the positioning teeth, the positioning strip is used for hanging and fixing a first layer of steel wire mesh arranged on a bottom layer of heat-insulating mortar layer, and the positioning grooves are used for hanging and fixing a second layer of steel wire mesh arranged on a middle layer of heat-insulating mortar layer.
The implementation of the invention comprises the following technical effects:
according to the steel structure external wall heat-insulating mortar enclosure system with the drawknot piece and the construction process, the special drawknot piece is installed before plastering construction, the drawknot piece provides accurate hanging, positioning and fixing functions for the steel wire mesh, and the problems of slipping, falling and the like of the steel wire mesh in the construction process are avoided; when plastering is performed, the tensioned steel wire mesh can effectively meet the construction requirement when the construction thickness of the thermal insulation mortar is larger, and the steel structure outer wall can have high-quality thermal insulation performance after construction; the drawknot piece comprises a locating strip and locating teeth, the locating strip is used for hanging and fixing a first layer of steel wire mesh, locating grooves are formed in the end portions of the locating teeth and used for hanging and binding a second layer of steel wire mesh, the locating grooves are rectangular and trapezoidal, and the drawknot piece with the locating grooves with the two shapes can be used for accurately hanging and fixing the steel wire mesh with the diameter of 1-5 mm; the difference is that the drawknot piece with the trapezoid positioning groove can also be used for hanging and fixing the steel wire mesh with the diameter of the steel wire being larger than 5mm. In addition, the construction process provided by the invention is simple in principle, convenient to operate, capable of improving the overall construction quality of the steel structure outer wall heat preservation system, and capable of providing better safety guarantee for steel structure buildings.
Drawings
Fig. 1 is a schematic structural view of a steel structure external wall insulation mortar enclosure system with a drawknot member.
Fig. 2 is a cross-sectional view of a steel structure external wall insulation mortar enclosure system with a drawknot member, wherein the cross section of a positioning groove is trapezoidal.
Fig. 3 is a cross-sectional view of a steel structure external wall insulation mortar enclosure system with a drawknot member, wherein the cross section of a positioning groove is rectangular.
Fig. 4 is an enlarged view of a portion of the drawknot member of fig. 2.
Fig. 5 is an enlarged view of a portion of the drawknot member of fig. 3.
In the figure, the wall body comprises a 1-base layer wall body, a 2-interface mortar layer, a 3-bottom layer heat-insulating mortar layer, a 4-middle layer heat-insulating mortar layer, a 5-surface layer heat-insulating mortar layer, a 6-crack-resistant mortar layer, a 7-finish layer, 11-drawknot pieces, 31-first layer steel wire meshes, 41-second layer steel wire meshes, 111-positioning strips, 112-positioning teeth and 1121-positioning grooves.
Detailed Description
The invention will now be described in detail with reference to the following examples and the accompanying drawings, it being pointed out that the examples described are intended only to facilitate an understanding of the invention and are not intended to be limiting in any way.
The directions described in the present application are used for convenience as described above and below and left and right with reference to the drawings, and do not limit the scope of protection.
As shown in fig. 1-5, the steel structure outer wall heat-insulating mortar enclosure system with the drawknot piece provided by the invention comprises an interface mortar layer 2 arranged on a base layer wall body 1, a bottom heat-insulating mortar layer 3 arranged on the interface mortar layer 2, a middle heat-insulating mortar layer 4 arranged on the bottom heat-insulating mortar layer 3, a surface layer heat-insulating mortar layer 5 arranged on the middle heat-insulating mortar layer 4, an anti-cracking mortar layer 6 arranged on the surface layer heat-insulating mortar layer 5 and a finish layer 7 arranged on the anti-cracking mortar layer 6; the base layer wall body is provided with a drawknot piece 11, the drawknot piece comprises a positioning strip 111 and positioning teeth 112, positioning grooves 1121 are formed in the end parts of the positioning teeth 112, the positioning strip 111 is used for being hung and fixed on a first layer of steel wire mesh 31 arranged on the bottom layer of heat-insulating mortar layer 3, and the positioning grooves 1121 are used for being hung and fixed on a second layer of steel wire mesh 41 arranged on the middle layer of heat-insulating mortar layer 4; the base layer wall body is of a steel structure. According to the steel structure external wall heat-insulating mortar enclosure system with the drawknot piece and the construction process thereof, the special drawknot piece is firstly installed before plastering construction, the drawknot piece provides accurate hanging, positioning and fixing functions for the steel wire mesh, and the problems of slipping, falling and the like of the steel wire mesh in the construction process are avoided; when plastering is performed, the tensioned steel wire mesh can effectively meet the construction requirement when the construction thickness of the thermal insulation mortar is larger, and the steel structure outer wall can have high-quality thermal insulation performance after construction; the drawknot piece mainly comprises a locating strip and locating teeth, wherein the locating strip is used for hanging and fixing a first layer of steel wire mesh, and locating grooves are formed in the end parts of the locating teeth and used for hanging and binding and fixing a second layer of steel wire mesh. In addition, the construction process provided by the invention is simple in principle, convenient to operate, capable of improving the overall construction quality of the steel structure outer wall heat preservation system, and capable of providing better safety guarantee for steel structure buildings.
Preferably, a spacer is provided on the base wall 1, and the drawknot member 11 is provided on the spacer.
The drawknot 11 is arranged longitudinally along the wall and is connected through bolts. Preferably, the vertical distance between the drawknot pieces 11 is 1500-2000mm, and the distance between the bolts is 500-1500mm; the bolt is a metal expansion bolt, and the diameter of the bolt is 6-12mm.
Preferably, the cross section of the positioning groove 1121 is trapezoidal, as shown in fig. 2 and 4, the cross section of the positioning groove 1121 is trapezoidal, and as shown in fig. 3 and 5, the cross section of the positioning groove 1121 is rectangular. The drawknot piece with the positioning grooves with the rectangular cross section and the trapezoidal cross section can be used for accurately hanging and fixing a steel wire mesh with the diameter of 1-5 mm; however, the drawknot piece with the trapezoid positioning groove can be hung and fixed by a steel wire net with the steel wire diameter larger than 5mm.
Wherein, the first layer of steel wire mesh 31 and the second layer of steel wire mesh 41 are transverse meshes with the width of 1700-2200mm which are formed by shearing hot dip galvanizing steel wire mesh.
Preferably, the thickness of the interface mortar layer 2 is 2-5mm; the thickness of the bottom thermal insulation mortar layer is 10-30mm; the thickness of the middle layer thermal insulation mortar layer 4 is 10mm-30mm; the thickness of the surface layer heat-insulating mortar layer 5 is 10-20mm; the thickness of the anti-cracking mortar layer 6 is not less than 5mm.
The invention also provides a construction process of the steel structure external wall heat-insulating mortar enclosure system with the drawknot piece, which comprises the following steps:
(1) And (3) base layer treatment: the base layer wall body 1 is a steel structure outer wall, dust, dirt, oil stains, residual ash blocks and the like on the surface of the base layer wall body 1 are cleaned, and the joint of doors, windows and holes and the wall body is filled closely.
(2) The tie piece 11 is arranged on the base wall 1: the drawknot member 11 comprises a positioning strip 111 and positioning teeth 112, wherein positioning grooves 1121 are formed in the end portions of the positioning teeth 112, the positioning strip 111 is used for hanging and fixing a first layer of steel wire mesh 31 arranged on the bottom layer of thermal insulation mortar layer 3, and the positioning grooves 1121 are used for hanging and fixing a second layer of steel wire mesh 42 arranged on the middle layer of thermal insulation mortar layer 4.
(3) Filling ribs into ash cakes: firstly, hanging the vertical, square and gauge, using thermal insulation mortar as a standard cake, then punching ribs, and checking the verticality; the door and window and the external corner of the wall body are provided with corner protectors;
(4) Coating an interface mortar layer 2: firstly adding water into interface mortar, uniformly stirring, and after no raw mortar powder clusters exist, scraping in full batch, so that the interface mortar layer covers all base layer walls 1, and the thickness of the interface mortar layer 2 is between 2mm and 5mm;
(5) And (3) constructing a bottom thermal insulation mortar layer: the bottom layer heat-insulating mortar is constructed before the interface mortar layer 2 is coagulated and hardened, the prepared heat-insulating mortar is smeared on the interface mortar layer 2, and the smearing thickness is 20mm; the total thickness of the mortar is slightly smaller than that of the first layer of steel wire mesh 31 hung on the drawknot piece 11, because the position where the steel wire mesh is hung can be at the design position only when the thickness of the mortar is slightly smaller than that of the first layer of steel wire mesh hanging position, construction is carried out after the hanging is finished, and the mortar can level the filling position inside;
(6) Hanging a first layer of steel wire mesh 31: cutting hot dip galvanized steel wire nets into transverse net pieces with the width of 2200mm, sequentially hanging and binding and fixing the transverse net pieces on the drawknot piece 11 from top to bottom, and binding and fixing the overlapped parts of the upper steel wire net piece and the lower steel wire net piece with each other and the drawknot piece;
(7) And (4) constructing a middle-layer heat-insulating mortar layer 4: coating the prepared thermal insulation mortar on the bottom thermal insulation mortar layer 3, wherein the coating thickness is 20mm; the total thickness of the mortar is slightly smaller than that of the drawknot piece 11 where the second layer of steel wire mesh 41 is hung, because the hanging position of the steel wire mesh can be at the design position only when the thickness of the mortar is slightly smaller than that of the first layer of steel wire mesh hanging position, construction is carried out after the hanging is finished, and the mortar can level the filling position inside;
(8) Hanging a second layer of steel wire mesh 41: the second layer of steel wire mesh 41 is hung and bound on the drawknot member 11 in the same way as the first layer of steel wire mesh 31;
(9) And (5) constructing a surface layer heat-insulating mortar layer: coating the prepared thermal insulation mortar on the middle thermal insulation mortar layer 4, wherein the coating thickness is 10mm;
(10) And (3) construction of an anti-cracking mortar layer 6: uniformly distributing anti-cracking mortar on the surface layer heat-insulating mortar layer 5 in advance, pressing alkali-resistant mesh into the anti-cracking mortar layer 6, tightly preventing the alkali-resistant mesh from being directly paved on the surface layer heat-insulating mortar layer 5, and then coating and bonding with the anti-cracking mortar; the total thickness of the anti-cracking mortar layer is not less than 5mm;
(10) And (3) construction of a facing layer 7: the facing layer 7 is a paint facing or a face brick facing, the paint facing is made of flexible or elastic putty, the paint is evenly coated and firmly bonded, and the paint cannot be neglected to coat through the bottom, peel off and powder fall; before the face brick is pasted, the face brick pasting surface is guaranteed to be tidy, flat and dry, the width of a face brick joint is more than or equal to 5mm, and after the face brick is pasted for 24 hours, joint filling is carried out by using a joint mixture.
In the step (2), when the surface of the base layer wall body 1 is uneven, a spacer with 0-1mm is adopted to adjust the flatness of the surface of the base layer wall body 1 when the drawknot piece 11 is installed, and then a metal expansion bolt is used for anchoring connection with the steel structure outer wall.
Before the step (2), sealing and waterproof treatment are carried out on the door and window opening, the pipeline wall penetrating opening, the plinth, the balcony, the deformation joint or the head collecting part of the heat preservation system of the parapet wall.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention.
Claims (8)
1. A steel construction external wall thermal insulation mortar enclosure system of area drawknot spare, its characterized in that: the steel structure outer wall heat-insulating mortar enclosure system comprises an interface mortar layer arranged on a base layer wall body, a bottom layer heat-insulating mortar layer arranged on the interface mortar layer, a middle layer heat-insulating mortar layer arranged on the bottom layer heat-insulating mortar layer, a surface layer heat-insulating mortar layer arranged on the middle layer heat-insulating mortar layer, an anti-cracking mortar layer arranged on the surface layer heat-insulating mortar layer and a facing layer arranged on the anti-cracking mortar layer; the base layer wall body is provided with a drawknot piece, the drawknot piece comprises a positioning strip and positioning teeth, the end parts of the positioning teeth are provided with positioning grooves, the positioning strip is used for being hung on a first layer of steel wire mesh fixedly arranged on a bottom layer of heat-insulating mortar layer, and the positioning grooves are used for being hung on a second layer of steel wire mesh fixedly arranged on a middle layer of heat-insulating mortar layer;
the drawknot piece is longitudinally arranged along the wall body and is connected with the wall body through bolts;
the cross section of the positioning groove is trapezoid or rectangular.
2. The steel structure external wall heat insulation mortar enclosure system with the drawknot member according to claim 1, wherein the steel structure external wall heat insulation mortar enclosure system is characterized in that: the base layer wall body is provided with a gasket, and the drawknot piece is arranged on the gasket.
3. The steel structure external wall heat insulation mortar enclosure system with the drawknot member according to claim 1, wherein the steel structure external wall heat insulation mortar enclosure system is characterized in that: the vertical distance between the drawknot pieces is 1500-2000mm, and the distance between the bolts is 500-1500mm; the bolt is a metal expansion bolt, and the diameter of the bolt is 6-12mm; the first layer of steel wire mesh and the second layer of steel wire mesh are transverse meshes with the width of 1700-2200mm, which are formed by shearing hot dip galvanizing steel wire meshes.
4. The steel structure external wall heat insulation mortar enclosure system with the drawknot member according to claim 1, wherein the steel structure external wall heat insulation mortar enclosure system is characterized in that: the thickness of the interface mortar layer is 2-5mm; the thickness of the bottom thermal insulation mortar layer is 10-30mm; the thickness of the middle layer heat-insulating mortar layer is 10mm-30mm; the thickness of the surface layer heat-insulating mortar layer is 10-20mm; the thickness of the anti-cracking mortar layer is not less than 5mm.
5. A construction process of a steel structure external wall heat-insulating mortar enclosure system with a drawknot member according to any one of claims 1-4, which is characterized in that: the method comprises the following steps:
(1) And (3) base layer treatment: processing the base wall body;
(2) Installing a drawknot piece: installing a drawknot piece on the base wall;
(3) Filling ribs into ash cakes: firstly, using thermal insulation mortar as a standard cake, then punching ribs, and checking verticality;
(4) Coating an interface mortar layer: firstly adding water into the interface mortar, uniformly stirring, and scraping after no raw mortar powder clusters exist, so that the interface mortar layer covers all base layer walls;
(5) And (3) constructing a bottom thermal insulation mortar layer: coating the prepared thermal insulation mortar on an interface mortar layer;
(6) Hanging a first layer of steel wire mesh: the first steel wire mesh is sequentially hung on the drawknot piece from top to bottom and is bound and fixed on the bottom thermal insulation mortar layer;
(7) And (3) constructing a middle-layer heat-insulating mortar layer: coating the prepared thermal insulation mortar on an interface mortar layer;
(8) Hanging a second layer of steel wire mesh: hanging and binding the second layer of steel wire mesh on the drawknot piece in the same way as the first layer of steel wire mesh;
(9) And (3) surface layer heat-insulating mortar construction: coating the prepared thermal insulation mortar on the middle-layer thermal insulation mortar;
(10) And (3) construction of an anti-cracking mortar layer: laying anti-cracking mortar on the middle-layer heat-insulating mortar layer in advance, pressing the alkali-resistant mesh into the anti-cracking mortar layer, and then coating and bonding with the anti-cracking mortar;
(11) And (3) construction of a facing layer: the facing layer is a paint facing or a face brick facing; when the paint is decorated, flexible or elastic putty is adopted as the paint; when facing the face brick, the width of the joint of the face brick is not less than 5mm, and after the face brick is pasted for 24 hours, the joint mixture is used for joint filling.
6. The construction process of the steel structure external wall heat insulation mortar enclosure system with the drawknot member, which is disclosed in claim 5, is characterized in that: in the step (2), when the surface of the base wall body is uneven, a gasket is adopted to adjust the flatness of the surface of the base wall body when the drawknot piece is installed, and then the base wall body is connected with the steel structure outer wall through bolts.
7. The construction process of the steel structure external wall heat insulation mortar enclosure system with the drawknot member according to claim 5 or 6, which is characterized in that: before the step (2), sealing and waterproof treatment are carried out on the door and window opening, the pipeline wall penetrating opening, the plinth, the balcony, the deformation joint or the head collecting part of the heat preservation system of the parapet wall.
8. The construction process of the steel structure external wall heat insulation mortar enclosure system with the drawknot member according to claim 5 or 6, which is characterized in that: in step (2), the drawknot piece includes locating strip and location tooth, the tip of location tooth is provided with the constant head tank, the locating strip is used for hanging the fixed first layer wire net that sets up on the bottom heat preservation mortar layer, the constant head tank is used for hanging the fixed second floor wire net that sets up on the middle level heat preservation mortar layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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