CN112575922A - Double-insulation composite board sandwich type steel frame outer wall structure and construction method thereof - Google Patents
Double-insulation composite board sandwich type steel frame outer wall structure and construction method thereof Download PDFInfo
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- CN112575922A CN112575922A CN202011384621.6A CN202011384621A CN112575922A CN 112575922 A CN112575922 A CN 112575922A CN 202011384621 A CN202011384621 A CN 202011384621A CN 112575922 A CN112575922 A CN 112575922A
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- 238000009413 insulation Methods 0.000 title claims abstract description 179
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 172
- 239000010959 steel Substances 0.000 title claims abstract description 172
- 239000002131 composite material Substances 0.000 title claims abstract description 124
- 238000010276 construction Methods 0.000 title claims abstract description 37
- 238000010079 rubber tapping Methods 0.000 claims abstract description 26
- 230000000694 effects Effects 0.000 claims abstract description 16
- 150000001875 compounds Chemical class 0.000 claims description 19
- 238000011534 incubation Methods 0.000 claims description 18
- 238000004321 preservation Methods 0.000 claims description 17
- 239000011490 mineral wool Substances 0.000 claims description 12
- 238000005034 decoration Methods 0.000 claims description 9
- 239000004568 cement Substances 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 6
- 238000013461 design Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 description 4
- 239000002023 wood Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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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
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
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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
- E04B1/88—Insulating elements for both heat and sound
- E04B1/90—Insulating elements for both heat and sound slab-shaped
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Abstract
The invention provides a double-insulation composite board sandwich type steel frame outer wall structure and a construction method thereof. According to the invention, the wall surface purlines are arranged on the basis of the traditional outer wall steel frame, the inner and outer composite heat-insulation wallboards are fixed on the wall surface purlines through the self-tapping screws, and the self-tapping screws for fixing the inner and outer composite heat-insulation wallboards are staggered and do not contact with each other, so that a direct propagation path of indoor and outdoor heat is blocked, and the influence of a cold and hot bridge effect commonly existing in an assembly type building is effectively reduced; the sandwich layer (middle cavity) formed between the inner and outer composite heat-insulating wall boards enhances the heat-insulating and sound-insulating properties of the whole house; the outer wall structure is particularly suitable for assembly projects with higher requirements on construction quality, construction efficiency, energy-saving effect and durability.
Description
Technical Field
The invention belongs to the technical field of building exterior wall heat insulation decoration, and particularly relates to a double-heat-insulation composite board sandwich type steel frame exterior wall structure and a construction method thereof.
Background
At present, for traditional buildings, the most conventional method for external thermal insulation of external walls is to wrap the whole building by using a thermal insulation board after a building structure is made, then fix the thermal insulation board by using expansion bolts, and finally dry-hang, wet-stick or brush an external wall decoration layer on the outer side of the thermal insulation board. The whole process has multiple steps, the operation is complex, and the field operation quality is difficult to guarantee.
In recent years, assembly type buildings are vigorously developed in China, the wallboard in the building form can be prefabricated in factories, is simple to install on site and easy to ensure quality, and the matched peripheral retaining wall forms are infinite and most common in the following forms:
1) PC concrete precast shear wall: firstly, make the prefab in the mill, including prefabricated steel reinforcement cage, heated board and inside and outside two-layer thin concrete layer, the heated board is arranged in between inside and outside two-layer thin concrete layer and is hugged closely outside thin concrete layer, and the steel reinforcement cage is arranged in between heated board and the inside thin concrete layer and during embedding heated board and the inside thin concrete layer, transports the prefab to the scene, hoists to the building and corresponds the position, pours the concrete into the steel reinforcement cage between heated board and the inside thin concrete layer at last, forms the assembled outer wall. Because the two thin concrete layers need to be mutually dragged and fixed through a steel member, a plastic member, a carbon fiber member or a cement layer penetrating through the heat insulation board, the two thin concrete layers form a cold and hot bridge penetrating through the heat insulation board, the prefabricated part is inconvenient to transport, and the complexity of assembly construction is increased by on-site concrete pouring;
2) the color steel sandwich insulation board is externally hung on the outer wall: the assembled outer wall is characterized in that after a frame structure and an outer wall purline are completed on site, the color steel sandwich insulation board is hung outside by using a self-tapping screw, and meanwhile, the self-tapping screw penetrating through the insulation layer also forms a cold and hot bridge;
3) light steel dense-assistant type outer wall: the thin-wall light steel purlines are used as building outer keels, thin wood plates are nailed to the metal purlines from indoor and outdoor by self-tapping nails after installation is finished, meanwhile, heat insulation cotton is filled in a sandwich space between the thin wood plates to form an outer wall, and the metal purlines connecting the inner thin wood plates and the outer thin wood plates also form a plurality of heat transfer cold and hot bridges;
4) the energy-saving plate is embedded with an external wrapping type external wall: after the frame structure is completed on site, the prefabricated cement-based sandwich heat-insulation composite board is embedded in the frame structure, the whole frame structure is wrapped by a layer of cement-based sandwich heat-insulation composite board, finally, the embedded and wrapped cement-based sandwich heat-insulation composite boards are fixed by the opposite-penetrating bolts, and the opposite-penetrating bolts penetrating through the heat-insulation layer also form a cold and hot bridge.
To sum up, the outer wall structure of above-mentioned building all can not avoid appearing cold and hot bridge phenomenon, and most construction is complicated, is difficult to guarantee construction quality, consequently urgently needs to find a board can simplify the construction procedure, guarantees engineering quality, can avoid the assembled house of cold and hot bridge again to satisfy modern assembled building market development requirement.
Disclosure of Invention
Aiming at the defects, the invention aims to provide a double-heat-preservation composite plate sandwich type steel frame outer wall structure.
The technical scheme adopted by the invention is as follows:
the utility model provides a two thermal-insulation composite sheet sandwich type steel frame outer wall structure, includes steel frame (01) of setting on building grade beam (02), installs the structure wall body on the steel frame and wraps up outer wall decorative layer (04) of structure wall body, steel frame (01) by the frame construction that steel column (011) and girder steel (012) constitute, the structure wall body includes:
the wall purlines (1) are fixed on the steel frame (01); and
outer compound incubation wallboard (2) and interior compound incubation wallboard (3) are fixed in the outside and the inboard of wall purlin (1) through self-tapping nail (6) respectively, and just fix self-tapping nail (6) of outer compound incubation wallboard (2) and interior compound incubation wallboard (3) and stagger each other, contactless, leave the cavity in order to form sandwich layer (7) that have heat preservation and syllable-dividing effect between outer compound incubation wallboard (2) and interior compound incubation wallboard (3).
In the double-insulation composite board sandwich type steel frame outer wall structure, the outer composite insulation wallboard (2) and the inner composite insulation wallboard (3) are respectively composed of a double-layer cement base or a double-layer metal steel plate and an insulation layer positioned between the two layers.
In the double-insulation composite board sandwich type steel frame outer wall structure, the outer side surface of the wall surface purline (1) and the outer side surface of the steel column (011) of the steel frame (01) are in the same horizontal plane.
In the double-insulation composite plate sandwich type steel frame outer wall structure, the plurality of wall purlines (1) are welded on the steel frame (01) in a grid shape on the same plane, and the distance between every two adjacent wall purlines (1) is 600-1000 mm.
In the double-insulation composite board sandwich type steel frame outer wall structure, the outer composite insulation wallboard (2) is tightly attached to and covers the outer side surfaces of the steel frame (01) and the wall surface purline (1).
Among the two compound incubation composite sheet sandwich shaped steel frame outer wall structures of above-mentioned, the medial surface of wall purlin (1) is hugged closely in interior compound incubation wallboard (3), and in steel column (011) and girder steel (012) position department disconnection of steel frame (01), interior compound incubation wallboard (3) disconnection department is provided with:
the inter-column heat insulation plate (4) is arranged on the inner side of the disconnected part of the inner composite heat insulation wallboard (3) and covers the indoor exposed steel column (011); and/or
The inter-beam heat insulation board (5) is embedded into the space between the outer composite heat insulation wallboard (2) and the steel beam (012), and at least covers the outer side edge of the steel beam (012).
In the double-insulation composite plate sandwich type steel frame outer wall structure, the inter-column insulation boards (4) and the inter-beam insulation boards (5) are all through-long insulation rock wool boards, the width of each through-long insulation rock wool board is larger than the width of each steel column (011) and each steel beam (012), the thickness of each through-long insulation rock wool board is 2-200 mm, and the width of each through-long insulation rock wool board is 100-1000 mm.
The invention also provides a construction method of any one of the double-insulation composite board sandwich type steel frame outer wall structures, the double-insulation composite board sandwich type steel frame outer wall structure is constructed based on the finished foundation ground beam (02), the steel frame (01) and the floor (03), and the construction method comprises the following steps:
step one, mounting a wall surface purline (1): welding a plurality of wall purlines (1) on a steel frame (01) one by one at intervals, so that the outer side surfaces of the wall purlines (1) are flush with the outer side surfaces of steel columns 011 of the steel frame (01), and corresponding door and window openings are reserved at door and window positions of an outer wall;
step two, installing an external composite heat-insulation wallboard (2): fixing the outer composite heat-insulation wallboard (2) at the outer side of the wall surface purline (1) by using a self-tapping screw (6), so that the outer composite heat-insulation wallboard (2) is tightly attached to and covers the steel frame (01) and the outer side surface of the wall surface purline (1);
step three, installing the inner composite heat-insulation wallboard (3): the inner composite heat-insulation wallboard (3) is fixed on the inner side of the wall purline (1) by adopting a self-tapping screw (6), and the inner composite heat-insulation wallboard (3) is disconnected at the positions of a steel column (011) and a steel beam (012) of the steel frame (01);
and step four, installing an outer wall decoration layer (04) on the outer side of the outer composite heat-insulation wallboard (2) according to design requirements, and finishing construction of the double heat-insulation composite board sandwich type steel frame outer wall structure.
In the construction method of the double-insulation composite plate sandwich type steel frame outer wall structure, the installation step of the beam-to-beam insulation plate (5) mentioned in claim 5 or 6 is further included between the second step and the third step:
the inter-beam heat insulation board (5) is embedded into the space between the steel beam (012) and the outer composite heat insulation wallboard (2).
In the construction method of the double-insulation composite plate sandwich type steel frame outer wall structure, the installation step of the inter-column insulation plate (4) mentioned in claim 5 or 6 is further included between the third step and the fourth step:
and (3) installing the inter-column heat insulation plate (4) at the inner side of the disconnected part of the inner composite heat insulation wallboard (2) and covering the steel column (011) at the disconnected part.
The invention has the beneficial effects that:
(1) according to the invention, the wall surface purline is arranged on the basis of the traditional outer wall steel frame, the inner and outer composite heat-insulation wallboards are fixed on the wall surface purline through the self-tapping screws, and the self-tapping screws for fixing the inner and outer composite heat-insulation wallboards are staggered and do not contact with each other, so that a direct propagation path of indoor and outdoor heat is blocked, the influence of a cold and hot bridge effect between wallboards commonly existing in an assembly type building is effectively reduced, and meanwhile, a sandwich layer (middle cavity) formed between the inner and outer composite heat-insulation wallboards enhances the heat insulation and sound insulation performance of the whole building;
(2) the double heat preservation measures are adopted, namely the combination of the inner and outer composite heat preservation wallboards is adopted, and the inner and outer composite heat preservation wallboards adopt composite heat preservation boards, so that the strength of the wall body is ensured while the heat preservation performance is realized, the wet operations such as concrete pouring and the like are omitted, the construction is simple and efficient, and the construction quality is easy to guarantee;
(3) the weak position of heat preservation performance of including compound insulation wallboard disconnection department increases heated board between post and roof beam, avoids indoor heat direct to transmit to outdoor through steel frame, reduces indoor outer heat and exchanges, reinforcing heat preservation effect.
The outer wall structure is particularly suitable for assembly projects with higher requirements on construction quality, construction efficiency, energy-saving effect and durability.
Drawings
FIG. 1A is a longitudinal cross-sectional view of one embodiment of the dual insulation composite panel sandwich type steel frame exterior wall structure of the present invention;
FIG. 1B is a schematic structural view of a steel frame in the embodiment of FIG. 1A;
FIG. 2 is a schematic structural diagram of the steel columns of the steel frame of the double insulation composite plate sandwich type steel frame outer wall structure of the invention;
FIG. 3 is a schematic structural view of the external corner of the double insulation composite plate sandwich type steel frame external wall structure of the present invention;
fig. 4 is a schematic structural view of the steel beam position of the steel frame of the double insulation composite plate sandwich type steel frame outer wall structure of the invention.
The reference numbers in the figures denote:
01-steel frame, 011-steel column, 012-steel beam;
02-building a ground beam; 03-floor; 04-outer wall decoration layer;
1-wall surface purline; 2-external composite heat-insulating wall board; 3-inner composite heat-insulating wall board; 4-an inter-column insulation board; 5-an inter-beam insulation board; 6-self-tapping screw; 7-a sandwich layer;
SN-indoor, SW-outdoor.
Detailed Description
In view of the existing market, the existing assembled steel frame outer wall structure generally has the defects of complex construction and difficult quality guarantee, and most of the outer wall structures have cold and hot bridge phenomena, are not energy-saving and are not durable. In order to solve the problems, the invention provides a double-heat-insulation composite board sandwich type steel frame outer wall structure, which is provided with a wall purline on the basis of the traditional outer wall steel frame, adopts a double-layer composite heat-insulation wallboard to be fixed on the wall purline, thereby blocking a vertical propagation path of indoor and outdoor heat, effectively reducing the influence of a cold and hot bridge effect commonly existing in an assembly type building, omitting wet operations such as concrete pouring and the like, having simple and efficient construction and easy to guarantee the construction quality, and being particularly suitable for assembly type projects with higher requirements on the construction quality, the construction efficiency, the energy-saving effect and the durability.
The following describes the double insulation composite plate sandwich type steel frame outer wall structure and the construction method thereof in detail with reference to the embodiments and the accompanying drawings. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Generally, the traditional steel frame outer wall structure comprises a steel frame, a structural wall body arranged on the steel frame and an outer wall decoration layer wrapping the structural wall body, wherein the existing structural wall body generally has a cold and hot bridge phenomenon, poor heat insulation effect and difficult quality (durability) guarantee. Referring to fig. 1A, 1B and 2, the double insulation composite plate sandwich type steel frame outer wall structure of the present invention includes a steel frame 01, a wall purlin 1, an outer composite insulation wallboard 2, an inner composite insulation wallboard 3 and an outer wall decoration layer 04, wherein the steel frame 01 is installed on a building ground beam 02, and includes a steel column 011 and a steel beam 012 (the section of the steel frame 01 in fig. 1B is i-shaped, the structure of the steel frame 01 is the existing design, and is not described herein again); the wall surface purline 1 is fixed (for example, welded and fixed) on the steel frame 01, the outer composite thermal insulation wallboard 2 and the inner composite thermal insulation wallboard 3 are respectively fixed on the outer side and the inner side of the wall surface purline 1 through self-tapping screws 6, and the self-tapping screws 6 for fixing the outer composite thermal insulation wallboard 2 and the inner composite thermal insulation wallboard 3 are mutually staggered and do not contact; the outer wall decoration layer 04 is installed on the steel frame 01 through a keel positioned on the outer side of the outer composite heat-insulation wallboard 2.
Preferably, the wall surface purlins 1 are made of square steel pipes or C-shaped steel, the wall surface purlins 1 are welded on the steel frame 01 in a cross-shaped lattice mode, the distance between every two wall surface purlins 1 is 600mm-1000mm, and the outer side surfaces of the wall surface purlins 1 and the outer side surfaces of the steel columns 011 of the steel frame 01 are located on the same horizontal plane; and reserving corresponding holes at corresponding positions of the outer wall structure according to design requirements for the positions of the door and window holes. Because the wall surface purline 1 has certain thickness, the cavity is reserved on the outer composite thermal insulation wallboard 2 and the inner composite thermal insulation wallboard 3 which are fixed on the wall surface purline 1 to form a sandwich layer 7 with the heat preservation and sound insulation effects.
Preferably, the outer composite heat-insulation wallboard 2 and the inner composite heat-insulation wallboard 3 are both formed by double-layer cement bases or metal steel plates and heat-insulation layers positioned between the double-layer cement bases or metal steel plates, and the composite wallboard has certain structural strength and also has a heat-insulation effect.
In this embodiment, as shown in fig. 1B, the cross sections of the steel columns 011 and the steel beams 012 of the steel frame 01 are both i-shaped, the width of the steel beams 012 is smaller than that of the steel columns 011, and preferably, the steel beams 012 are flush with the width centers of the steel columns 011; the outer side surface of the wall surface purline 1 is flush with the outer side surface of the steel frame 01, and the outer composite heat-insulation wall plate 2 is spliced on the outer side surfaces of the wall surface purline 1 and the steel frame 01 in a seamless mode (except for door and window positions); fix the interior compound incubation wallboard 3 of wall purlin 1 inboard and locate the disconnection at the position of steel column 011 and girder steel 012 place, because indoor heat conducts to outdoor through the steel column 011 and the girder steel 012 conduction of disconnection position easily, is unfavorable for indoor heat preservation.
In order to solve the problems, the invention also provides a heat insulation plate which is arranged on the inner side of the steel frame 01 and is positioned at the disconnected part of the inner composite heat insulation wallboard 3, and the heat insulation plate comprises an intercolumn heat insulation plate 4 and an intercolumn heat insulation plate 5, wherein the intercolumn heat insulation plate 4 is arranged on the inner side of the disconnected part of the inner composite heat insulation wallboard 3 and covers an indoor exposed steel column 011, so that heat exchange between the indoor and the outdoor through the steel column 011 is prevented, and the heat exchange between the indoor; in the space between compound incubation wallboard 2 and girder steel 012 outside the heated board 5 embedding between the roof beam, heated board 5 covers the outside limit of this place girder steel 012 at least between the roof beam, avoids indoor heat to carry out heat exchange through girder steel 012 and outdoors, increases the heat preservation effect.
Preferably, the inter-column heat insulation plate 4 and the inter-beam heat insulation plate 5 are all through-length heat insulation rock wool plates, the width of each through-length heat insulation rock wool plate is slightly larger than the width of each steel column 011 and each steel beam 012, the thickness of each through-length heat insulation rock wool plate is 2mm-200mm, and the width of each through-length heat insulation rock wool plate is 100mm-1000 mm.
The above embodiments are merely typical examples of the double insulation composite plate sandwich type steel frame outer wall structure of the present invention, and do not limit the scope of the present invention, and the outer wall structure may be applied to a fabricated building based on various types of existing steel frames. The outer wall structure is provided with a wall surface purline 1 on the basis of a traditional outer wall steel frame 01, an inner composite heat-insulation wallboard and an outer composite heat-insulation wallboard are fixed on the wall surface purline 1 through self-tapping screws 6, and the self-tapping screws 6 for fixing the inner composite heat-insulation wallboard and the outer composite heat-insulation wallboard are mutually staggered and do not contact with each other, so that a vertical propagation path of indoor and outdoor heat is blocked, the influence of a cold and hot bridge effect commonly existing in an assembly type building is effectively reduced, and meanwhile, a sandwich layer (middle cavity) 7 formed between the inner composite heat-insulation wallboard and the outer composite heat-insulation wallboard enhances the heat insulation and sound insulation; the structure adopts double heat preservation measures, selects the composite heat preservation plate, has heat preservation performance and ensures the strength of the wall body, thereby saving wet operations such as concrete pouring and the like, having simple and efficient construction and being easy to ensure the construction quality; the weak position of the thermal insulation performance of 3 disconnection of compound incubation wallboards including this structure increases heated board 4 between the post and heated board 5 between roof beam, reduces indoor outer heat and exchanges, increases the heat preservation effect. The structure is particularly suitable for assembly type projects with higher requirements on construction quality, construction efficiency, energy-saving effect and durability.
The double-insulation composite plate sandwich type frame outer wall structure is constructed based on the completed foundation ground beam 02, the steel frame 01 and the floor 03, and the construction process is as follows:
1) installing a wall surface purline 1: a plurality of wall purlines 1 are welded on the steel frame 01 one by one at intervals, so that the outer side surfaces of the wall purlines 1 are flush with the outer side surfaces of the steel columns 011 of the steel frame 01, and corresponding holes are reserved at door and window positions of an outer wall.
Preferably, all the wall surface purlins 1 integrally present a cross-shaped lattice structure, and the distance between every two adjacent wall surface purlins 1 is 600mm-1000 mm.
2) Installing an outer composite heat-insulation wallboard 2: fixing the outer composite thermal insulation wallboard 2 on the outer side of the wall surface purline 1 by using a self-tapping screw 6, so that the outer composite thermal insulation wallboard 2 is tightly attached to the steel frame 01 and the outer side surface of the wall surface purline 1;
specifically, referring to fig. 1A, 3 and 4, the outer composite thermal insulation wall board 2 is closely attached to the outer side surfaces of the steel frame 01 and the wall surface purlins 1, the lower end of the outer composite thermal insulation wall board is placed on the building ground beam 02, self-tapping screws 6 are sequentially driven into the position, corresponding to the wall surface purlins 1, of the outer composite thermal insulation wall board 2 at intervals from outside to inside, and the interval between every two adjacent self-tapping screws 6 is preferably 50mm-600 mm; the end part of the outer composite heat-insulation wallboard 2 is flush with the outer edge of a steel column 011 of the steel frame 01 at the corner of the building; the position of the outer composite heat-insulation wallboard 2 corresponding to the door and window opening is cut according to the reserved door and window opening size.
3) Installing the inter-beam heat insulation plate 5: the inter-beam insulation board 5 is embedded into the space between the steel beam 012 and the outer composite insulation wallboard 2.
4) Installing an inner composite heat-insulation wallboard 3: the inner composite thermal insulation wallboard 3 is fixed on the inner side of the wall surface purline 1 by using a self-tapping screw 6, and the inner composite thermal insulation wallboard 3 is disconnected at the positions of a steel column 011 and a steel beam 012 of a steel frame 01;
specifically, referring to fig. 1A, 2 and 4, the inner composite thermal insulation wall board 3 is closely attached to the inner side surface of the wall surface purline 1, the lower end of the inner composite thermal insulation wall board is placed on the building ground beam 02 or the floor 03, self-tapping screws 6 are sequentially driven into the inner composite thermal insulation wall board 3 at intervals from inside to outside at the position corresponding to the wall surface purline 1, and the interval between adjacent self-tapping screws 6 is preferably 50mm-600 mm; the end part of the inner composite heat-insulation wallboard 3 is flush with the inner edge of a steel column 011 of the steel frame 01 at the corner of the building; cutting and cutting the position of the inner composite heat-insulation wallboard 3 corresponding to the door and window opening according to the reserved door and window opening size;
5) installing an inter-column heat insulation plate 4: the inter-column insulation panel 4 is installed (e.g., bonded) inside the break of the inner composite insulation wall panel 3 and covers the steel column 011 at the break.
6) And according to design requirements, an outer wall decoration layer 04 is arranged on the outer side of the outer composite heat-insulation wallboard 2, and construction of the double-heat-insulation composite board sandwich type steel frame outer wall structure is completed.
It will be understood by those skilled in the art that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention, and that various equivalent modifications and changes may be made thereto without departing from the scope of the present invention.
Claims (10)
1. The utility model provides a two thermal-insulation composite sheet sandwich type steel frame outer wall structure, includes steel frame (01) of setting on building grade beam (02), installs the structure wall body on the steel frame and wraps up outer wall decorative layer (04) of structure wall body, and steel frame (01) is by the frame construction that steel column (011) and girder steel (012) constitute, its characterized in that, the structure wall body includes:
the wall purlines (1) are fixed on the steel frame (01); and
outer compound incubation wallboard (2) and interior compound incubation wallboard (3) are fixed in the outside and the inboard of wall purlin (1) through self-tapping nail (6) respectively, and just fix self-tapping nail (6) of outer compound incubation wallboard (2) and interior compound incubation wallboard (3) and stagger each other, contactless, leave the cavity in order to form sandwich layer (7) that have heat preservation and syllable-dividing effect between outer compound incubation wallboard (2) and interior compound incubation wallboard (3).
2. The double insulation composite board sandwich type steel frame outer wall structure according to claim 1, wherein the outer composite insulation wall board (2) and the inner composite insulation wall board (3) are both composed of double layers of cement-based or metal steel plates and an insulation layer between the two layers.
3. The double insulation composite plate sandwich type steel frame outer wall structure according to claim 1 or 2, wherein the outer side surfaces of the wall purlins (1) and the outer side surfaces of the steel columns (011) of the steel frame (01) are at the same level.
4. The double insulation composite plate sandwich type steel frame outer wall structure according to any one of claims 1 to 3, wherein a plurality of wall surface purlins (1) are welded on the steel frame (01) in a grid pattern on the same plane, and the distance between the adjacent wall surface purlins (1) is 600mm-1000 mm.
5. The double insulation composite board sandwich type steel frame outer wall structure according to any one of claims 1 to 4, wherein the outer composite insulation wall board (2) clings to and covers the outer side surfaces of the steel frame (01) and the wall purlins (1).
6. The double insulation composite plate sandwich type steel frame outer wall structure according to claim 5, wherein the inner composite insulation wall plate (3) is tightly attached to the inner side surface of the wall purline (1) and is disconnected at the positions of the steel column (011) and the steel beam (012) of the steel frame (01), and the disconnected position of the inner composite insulation wall plate (3) is provided with:
the inter-column heat insulation plate (4) is arranged on the inner side of the disconnected part of the inner composite heat insulation wallboard (3) and covers the indoor exposed steel column (011); and/or
The inter-beam heat insulation board (5) is embedded into the space between the outer composite heat insulation wallboard (2) and the steel beam (012), and at least covers the outer side edge of the steel beam (012).
7. The double insulation composite plate sandwich type steel frame outer wall structure according to claim 6, wherein the inter-column insulation plates (4) and the inter-beam insulation plates (5) are all full length insulation rock wool plates, the width of the inter-column insulation rock wool plates is larger than the width of the steel columns (011) and the width of the steel beams (012), the thickness of the inter-column insulation rock wool plates is 2mm-200mm, and the width of the inter-beam insulation rock wool plates is 100mm-1000 mm.
8. A construction method of the double insulation composite plate sandwich type steel frame outer wall structure according to any one of claims 1 to 7, which is constructed based on a completed foundation ground beam (02), a steel frame (01), a floor slab (03), comprising the steps of:
step one, mounting a wall surface purline (1): welding a plurality of wall purlines (1) on a steel frame (01) one by one at intervals, so that the outer side surfaces of the wall purlines (1) are flush with the outer side surfaces of steel columns 011 of the steel frame (01), and corresponding door and window openings are reserved at door and window positions of an outer wall;
step two, installing an external composite heat-insulation wallboard (2): fixing the outer composite heat-insulation wallboard (2) at the outer side of the wall surface purline (1) by using a self-tapping screw (6), so that the outer composite heat-insulation wallboard (2) is tightly attached to and covers the steel frame (01) and the outer side surface of the wall surface purline (1);
step three, installing the inner composite heat-insulation wallboard (3): the inner composite heat-insulation wallboard (3) is fixed on the inner side of the wall purline (1) by adopting a self-tapping screw (6), and the inner composite heat-insulation wallboard (3) is disconnected at the positions of a steel column (011) and a steel beam (012) of the steel frame (01);
and step four, installing an outer wall decoration layer (04) on the outer side of the outer composite heat-insulation wallboard (2) according to design requirements, and finishing construction of the double heat-insulation composite board sandwich type steel frame outer wall structure.
9. The construction method of a double insulation composite plate sandwich type steel frame outer wall structure according to claim 8, characterized in that the installation step of the inter-beam insulation plate (5) mentioned in claim 5 or 6 is further included between the second step and the third step:
the inter-beam heat insulation board (5) is embedded into the space between the steel beam (012) and the outer composite heat insulation wallboard (2).
10. The construction method of the double insulation composite board sandwich type steel frame outer wall structure according to claim 8 or 9, characterized in that the installation step of the inter-column insulation board (4) mentioned in claim 5 or 6 is further included between the third step and the fourth step:
and (3) installing the inter-column heat insulation plate (4) at the inner side of the disconnected part of the inner composite heat insulation wallboard (2) and covering the steel column (011) at the disconnected part.
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