CN114164988A - Multilayer concrete composite prefabricated external wall panel - Google Patents
Multilayer concrete composite prefabricated external wall panel Download PDFInfo
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- CN114164988A CN114164988A CN202010946154.5A CN202010946154A CN114164988A CN 114164988 A CN114164988 A CN 114164988A CN 202010946154 A CN202010946154 A CN 202010946154A CN 114164988 A CN114164988 A CN 114164988A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
- E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
- E04C2/288—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and concrete, stone or stone-like material
- E04C2/2885—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and concrete, stone or stone-like material with the insulating material being completely surrounded by, or embedded in, a stone-like material, e.g. the insulating material being discontinuous
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/44—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose
- E04C2/46—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose specially adapted for making walls
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- Civil Engineering (AREA)
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- Panels For Use In Building Construction (AREA)
Abstract
The embodiment of the invention relates to a multilayer concrete composite prefabricated external wall panel, relates to the technical field of fabricated buildings, and mainly aims to provide a multilayer concrete composite prefabricated external wall panel which is high in quality, low in price and easy to market. The main technical scheme adopted is as follows: multilayer concrete composite prefabricated externally-hung wallboard includes: a substrate, comprising: a first base layer made of concrete with a first strength and a second base layer made of concrete with a second strength, wherein the first base layer and the second base layer are laminated, and the first strength is greater than the second strength; the reinforcing steel bar assembly comprises reinforcing steel bars and steel wire meshes, the steel wire meshes are arranged in the first base layer, the reinforcing steel bars are arranged in the second base layer, and the reinforcing steel bars and the steel wire meshes are welded. Compared with the prior art, the prefabricated concrete external wallboard with higher strength can be prepared with lower cost, and the marketization is easy to realize.
Description
Technical Field
The embodiment of the invention relates to the technical field of assembly type buildings, in particular to a multilayer concrete composite prefabricated external wallboard.
Background
At present, the traditional construction mode is adopted for designing and constructing a large number of building outer walls in China, the methods of building, plastering, pasting, heat preservation, decoration and the like are mainly relied on manually on site, the mechanical and component degree of site operation is low, the problems of large material waste, poor engineering quality, high use and maintenance cost and the like are increasingly prominent, and the problems that attention must be paid and measures must be taken for improvement are solved.
High-quality outer wall part supports are urgently needed for building industrialization and prefabricated buildings, and for outer wall enclosure systems of steel structure systems and reinforced concrete structure systems, prefabricated concrete outer wall panel parts are inevitably preferred. Alternatively, cheaper low strength concrete is selected for production, but the product produced is thicker and heavier. The two types of precast concrete external wall panels are difficult to realize marketization.
Disclosure of Invention
In view of this, the embodiment of the present invention provides a multilayer concrete composite prefabricated external wall panel, and mainly aims to provide a multilayer concrete composite prefabricated external wall panel which is cheap and high in quality and easy to market.
In order to achieve the above purpose, the embodiments of the present invention mainly provide the following technical solutions:
the embodiment of the invention provides a multilayer concrete composite prefabricated external wall panel, which comprises:
a substrate, comprising: a first base layer made of concrete with a first strength and a second base layer made of concrete with a second strength, wherein the first base layer and the second base layer are laminated, and the first strength is greater than the second strength;
the reinforcing steel bar assembly comprises reinforcing steel bars and steel wire meshes, the steel wire meshes are arranged in the first base layer, the reinforcing steel bars are arranged in the second base layer, and the reinforcing steel bars and the steel wire meshes are welded.
The purpose of the embodiments of the present invention and the technical problems solved thereby can be further realized by the following technical measures.
Optionally, the external wall panel is prefabricated by a multi-layer concrete composite method, wherein the concrete with the first strength is fiber reinforced concrete.
Optionally, the aforementioned multilayer concrete composite prefabricated external wall panel further includes:
and the first end of the hanging piece is arranged in the base body and connected with the reinforced section steel, and the second end of the hanging piece extends out of the base body.
Optionally, the aforementioned multilayer concrete composite prefabricated external wall panel, wherein the reinforcing bar assembly further includes: and the steel bars are arranged on the steel wire mesh.
Optionally, the aforementioned multilayer concrete composite prefabricated external wall panel, wherein the reinforcing bar assembly further includes: and the reinforcing ribs are arranged on the reinforced section steel.
Optionally, the external wall panel is prefabricated by compounding multiple layers of concrete, wherein the reinforced steel plate is provided with a through hole.
Optionally, the aforementioned multilayer concrete composite prefabricated external wall panel, wherein the second base layer includes: the bottom layer and the side walls positioned on two sides of the bottom layer are arranged on the bottom layer, and a filling space is formed between the two side walls;
the heat preservation core layer is filled in the filling space;
the bridge cutoff layers are respectively arranged at the tops of the side walls on the two sides;
the cover body covers the heat preservation core layer and the bridge cut-off layer.
Optionally, in the multi-layer concrete composite prefabricated external wall panel, the reinforced section steel is respectively disposed on the side walls of the two sides, a first end of the reinforced section steel extends into the first base layer, a second end of the reinforced section steel extends into the second base layer, and the steel wire mesh is respectively connected to the reinforced section steel of the two sides.
Optionally, the external wall panel is prefabricated by compounding multiple layers of concrete, wherein the cover body is a glass fiber net reinforced polymer anti-crack mortar surface layer.
Optionally, the aforementioned multilayer concrete composite prefabricated external wall panel further includes:
the decorative layer, the first basic unit, the second basic unit stack gradually.
By means of the technical scheme, the multilayer concrete composite prefabricated external wall panel provided by the technical scheme at least has the following advantages:
in the technical scheme provided by the embodiment of the invention, the matrix of the multilayer concrete composite prefabricated external wall panel comprises two strength base layers, a first base layer with high price and high strength and a second base layer with low price and low strength are laminated, meanwhile, a steel wire mesh is arranged in the first base layer, reinforced steel is arranged in the second base layer, and reinforced steel is welded with the steel wire mesh, so that the first base layer and the second base layer are connected to form an organic combination body, namely, an organism with stable strength is formed.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the embodiments of the present invention more clear and clear, and to implement the technical solutions according to the contents of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic cross-sectional view of a multi-layer concrete composite prefabricated wall panel according to an embodiment of the present invention;
FIG. 2 is a schematic sectional view of a multi-layered concrete composite prefabricated outer wall panel according to an embodiment of the present invention;
fig. 3 is an assembly sectional structural view of a multi-layer concrete composite prefabricated external wall panel according to an embodiment of the present invention.
Detailed Description
To further illustrate the technical means and effects of the present invention for achieving the predetermined invention, the following detailed description of the embodiments, structures, features and effects of the multi-layer concrete composite prefabricated outer wall panel according to the present invention will be made with reference to the accompanying drawings and preferred embodiments. 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.
Fig. 1 to 3 show an embodiment of a multi-layer concrete composite prefabricated external wall panel according to the present invention, and referring to fig. 1 to 3, an embodiment of the present invention provides a multi-layer concrete composite prefabricated external wall panel, including:
a substrate 10 comprising: a first base layer 11 made of concrete with a first strength and a second base layer 12 made of concrete with a second strength, wherein the first base layer 11 is laminated with the second base layer 12, and the first strength is greater than the second strength;
reinforcing bar subassembly 20, including reinforcing shaped steel 21 and wire net 22, wire net 22 arrange in first basic unit 11, reinforcing shaped steel 21 arrange in second basic unit 12, reinforcing shaped steel 21 with the welding of wire net 22.
In the technical scheme provided by the embodiment of the invention, the base body 10 of the multilayer concrete composite prefabricated external wall panel comprises two strength base layers, a first base layer 11 with high price and high strength and a second base layer 12 with low price and low strength are laminated, meanwhile, a steel wire mesh 22 is arranged in the first base layer 11, a reinforced section steel 21 is arranged in the second base layer 12, and the reinforced section steel 21 is welded with the steel wire mesh 22, so that the first base layer 11 and the second base layer 12 are connected to form an organic combination, namely, an organism with stable strength is formed.
In practice, the concrete of the first strength may be fiber reinforced concrete or the like which is relatively expensive and has relatively high strength, and the fiber may be metal fiber, such as steel fiber or alloy fiber or the like. The second strength concrete may be a lower cost, lower strength concrete without the fiber, such as C60 concrete. The thickness of both is determined according to the actual conditions (price, overall strength).
In an embodiment of implementing a composite function of the multi-layer concrete composite prefabricated external wall panel, the second base layer 12 includes:
the bottom layer 121 and the sidewalls 122 located at two sides of the bottom layer 121, wherein the bottom of the sidewall 122 is disposed on the bottom layer 121, and a filling space is formed between the two sidewalls 122;
the heat preservation core layer 40 is filled in the filling space;
the bridge cutoff layers 50 are respectively arranged on the tops of the side walls 122 on the two sides;
and the cover body 60 covers the heat preservation core layer 40 and the bridge cut-off layer 50.
The heat preservation sandwich layer 40 is filled in a filling space formed between two side walls 122 of the base body 10 prepared from concrete, and the bridge cut-off layer 50 is arranged at the tops of the side walls 122 at two sides, so that the bridge cut-off layer 50 and the heat preservation sandwich layer 40 at two sides can cover the heat preservation sandwich layer 40, the cover body 60 of the bridge cut-off layer 50 and the base body 10 prepared from concrete can form effective bridge cut-off isolation, and a good heat preservation effect can be realized. Meanwhile, compared with the prior art, the heat insulation core layer 40 is filled inside, so that a heat insulation layer does not need to be additionally arranged in the construction process, and the construction process is simple.
In the preset multilayer concrete composite prefabricated external wall panel, a hanging piece 30 is also preset in a base body 10 made of concrete, a first end of the hanging piece 30 extends into the base body 10 and can be connected with a reinforced section steel 21, and a second end of the hanging piece 30 extends out of the base body 10 and is used for being hung with a hanging end of a building.
In addition, the reinforcing steel bars 21 are respectively provided on the side walls 122 on both sides; the steel wire mesh 22 is arranged in the bottom layer 121 and is respectively connected with the reinforcing section steel 21 in the side walls 122 at two sides, and the steel wire mesh 22 is used for connecting the reinforcing section steel 21 of the side walls 122 at two sides while reinforcing the bottom layer 121, so that the bottom layer 121 and the side walls 122 at two sides of the bottom layer 121 are connected to form an organic whole, the thickness is small, and the cost is low. The multilayer concrete composite prefabricated external wall panel can solve the practical situation that the pain point difficulty of the existing wall panel in the processes of manufacturing, transporting, constructing and installing is 'thick, complex and high in manufacturing cost', and the multilayer concrete composite prefabricated external wall panel changes the conventional method of the existing wall panel in the aspects of manufacturing process, structure, installation and connection, energy conservation, fire prevention, water prevention, durability and enclosure. The multi-layer concrete composite prefabricated external wall panel can be produced in a factory, the operation and control of the process flow are simple and convenient, the labor productivity is effectively improved, and the quality is greatly improved. In the aspect of pollution treatment, the industrial production is adopted, so that the problems of dust pollution and material waste caused by concrete field stirring are solved.
For the multi-layer concrete composite prefabricated external wall panel with different strengths, on one hand, the steel wire mesh 22 is also provided with reinforcing steel bars, the reinforcing steel bars can be welded to the steel wire mesh 22, and the number, diameter and arrangement mode of the reinforcing steel bars are determined according to specific strength requirements. On the other hand, the reinforced section steel 21 is further provided with reinforcing ribs, the reinforcing ribs can be welded to the reinforced section steel 21, and the number, the diameter and the arrangement mode of the reinforcing ribs are determined according to specific strength requirements.
The cross section of the reinforcing steel 21 may be a closed ring, such as a rectangular section, a triangular section, etc. Alternatively, the cross section of the reinforcing steel 21 may be an open ring, such as a C-shape. In the process of pouring cement by adopting the C-shaped reinforced section steel 21, the cement can conveniently enter the reinforced section steel 21 at the opening of the split ring. In some embodiments, in order to make the hollow reinforcing section steel 21 of the multi-layer concrete composite prefabricated external wall panel have good cement pouring, the plate material of the reinforcing section steel 21 is provided with through holes, and during pouring, the cement on the outer side of the hollow reinforcing section steel 21 can enter the reinforcing section steel 21 through the through holes, thereby improving the yield of products.
The bridge-cut layer 50 may be in the same plane as the top of the thermal insulation core layer 40, so that the cover 60 covers the thermal insulation core layer 40 and the bridge-cut layer 50. The top of the bridge cut-off layer 50 and the heat preservation core layer 40 form a bridge cut-off layer 50, and the bottom layer 121 and the cover body 60 are in bridge cut-off, so that the heat preservation function of the heat preservation externally-hung wallboard can be effectively improved.
The bridge-cutoff layer 50 may be implemented in different structural forms, and the following embodiments are provided in the present application, but not limited thereto.
The first implementation mode comprises the following steps: the bridge-cut-off layer 50 includes a mold shell, the inner side of the mold shell is filled with aerogel, and covers the top of the sidewall 122, and covers the aerogel between the mold shell and the sidewall 122.
The second embodiment: the bridge cut-off layer 50 is a hollow bridge cut-off shell, the bridge cut-off shell is arranged on the top of the side wall 122, and the hollow part of the bridge cut-off shell bridges the side wall 122 and the cover body 60.
In the embodiment of providing the insulating layer and the fireproof layer in the insulating core layer 40, the inner side of the bridge cut-off layer 50 is disposed at the top of the side wall 122, and the outer side of the bridge cut-off layer 50 is provided with fire retardant particles bonded by resin adhesive, where the fire retardant particles may be coarse sand particles, and the particle size of the coarse sand particles may be 2-8 mm. The fire retardant particles can be fire-resistant plastic particles, and the particle size of the fire-resistant plastic particles can be 2-8 mm. The coarse sand grains and the fireproof layer are in the same plane, and can form an integral fireproof layer.
The material of the cover 60 may be set as needed, and may be a mortar surface layer, for example, a glass fiber reinforced polymer anti-crack mortar surface layer, which can achieve high strength. In the preparation process, in order to facilitate preparation of the mortar surface layer, the first side wall 122 of the bridge cut-off layer 50 is abutted against the heat-insulating core layer 40, the second side wall 122 of the bridge cut-off layer 50 is exposed, the first side wall 122 of the bridge cut-off layer 50 is opposite to the second side wall 122 of the bridge cut-off layer 50, the second side wall 122 of the bridge cut-off layer 50 extends to one side of the cover body 60 made of concrete to form a lattice barrier wall, and after the mortar is distributed on the heat-insulating core layer 40 and the bridge cut-off layer 50, the cover body 60 made of mortar is arranged between the lattice barrier walls of the bridge cut-off layers 50 on the two sides.
The above-mentioned multilayer concrete composite prefabricated externally-hung wallboard still includes: the finishing layer 70, the first base layer 11, and the second base layer 12 are sequentially stacked.
The multilayer concrete composite prefabricated external wall panel has the characteristics of simple and convenient production process, light weight, reasonable structure, convenient transportation, light weight, labor and material saving, particularly, the novel three-dimensional adjustable connecting system is light and reasonable, so that the on-site hoisting and installation are convenient and quick, and the multilayer concrete composite prefabricated external wall panel can integrate decoration, heat preservation, fire prevention, water prevention, enclosure and durability. The factory-like production of the wallboard has accurate, flat and compact appearance size, only caulking treatment between boards is carried out after the wallboard is installed, secondary plastering decoration treatment is not needed on the surfaces of the boards, manpower and material resources are greatly saved, and the comprehensive cost of the boards is saved by 100-200 yuan per square meter compared with the cost of other existing external wallboard.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
It will be appreciated that the relevant features of the devices described above may be referred to one another. In addition, "first", "second", and the like in the above embodiments are for distinguishing the embodiments, and do not represent merits of the embodiments.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed apparatus should not be construed to reflect the intent as follows: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the components of the apparatus of the embodiments may be adapted and arranged in one or more arrangements different from the embodiments. The components of the embodiments may be combined into one component and, in addition, they may be divided into a plurality of sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the components of any apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination. The various component embodiments of the present invention may be implemented in hardware, or in a combination thereof.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or components not listed in a claim. The word "a" or "an" preceding a component or element does not exclude the presence of a plurality of such components or elements. The invention may be implemented by means of an apparatus comprising several distinct elements. In the claims enumerating several means, several of these means may be embodied by one and the same item. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are still within the scope of the technical solution of the present invention.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010946154.5A CN114164988A (en) | 2020-09-10 | 2020-09-10 | Multilayer concrete composite prefabricated external wall panel |
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| CN202010946154.5A CN114164988A (en) | 2020-09-10 | 2020-09-10 | Multilayer concrete composite prefabricated external wall panel |
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| CN107268803A (en) * | 2017-07-18 | 2017-10-20 | 吉林建筑大学 | Only there is the connection method of flat out of plane constraint a kind of out-hung panel bottom to wallboard |
| CN108015880A (en) * | 2017-12-04 | 2018-05-11 | 山东建筑大学 | Combined wall board and its making and installation method for assembling type steel structure building |
| CN210562968U (en) * | 2019-08-30 | 2020-05-19 | 北京智慧云建科技有限公司 | Composite heat-insulating external wall panel based on ceramsite vitrified microsphere concrete skeleton |
| CN213952690U (en) * | 2020-09-10 | 2021-08-13 | 山东圆梦绿色建筑科技有限公司 | Multilayer concrete composite prefabricated external wall panel |
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2020
- 2020-09-10 CN CN202010946154.5A patent/CN114164988A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202767271U (en) * | 2012-08-31 | 2013-03-06 | 清华大学建筑设计研究院有限公司 | Compound sandwich core heat preservation board with bridge-cutoff heat insulation strip |
| CN203654597U (en) * | 2013-11-29 | 2014-06-18 | 湖北弘毅钢结构工程有限公司 | Reinforced concrete outer layer and steel wire mesh foam concrete inner layer compound outer wallboard |
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| CN107268803A (en) * | 2017-07-18 | 2017-10-20 | 吉林建筑大学 | Only there is the connection method of flat out of plane constraint a kind of out-hung panel bottom to wallboard |
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