CN209277334U - A kind of prefabricated combined assembled insulation construction integrated wallboard - Google Patents

Abstract

The utility model provides a prefabricated composite assembled thermal insulation structure integrated wallboard, which includes a protective layer, an outer autoclaved aerated concrete board, an asbestos-free calcium silicate board or a fiber cement board, rock wool or rubber powder polyphenylene particle slurry and other thermal insulation materials combined with light steel keel structure, waterproof and breathable membrane, inner autoclaved aerated concrete slab, etc. Among them, the inner and outer autoclaved aerated concrete slabs are reliably connected to the middle light steel keel structure by welding, bolts or self-drilling self-tapping screws as a whole, and the built-in insulation layer is combined through factory prefabrication and on-site secondary assembly and other preparation processes to form sandwich composite thermal insulation structure wall panels. The structure is simple, the production is convenient, and the cost is low, which can realize the production of assembly line prefabricated chemical plants; the wall panels are light and high-strength, convenient for transportation, hoisting and installation, and have good thermal insulation and seismic performance. They integrate external wall thermal insulation, fire prevention and structural safety. The composite wall panel components and the main structure can be used with the same service life.

Description

A prefabricated composite assembly type thermal insulation structure integrated wall panel

technical field

The utility model relates to the field of construction, in particular to a prefabricated composite assembly type integrated wall panel with thermal insulation structure.

Background technique

With the continuous improvement of building energy and labor costs in my country, prefabricated buildings have attracted more and more attention from governments at all levels and all walks of life in recent years, and a series of encouraging and supporting policies have also been formulated at the national level. In addition to the main structure, the "three panels" of the building are the preferred components of the prefabricated technology, and the most difficult to overcome is the prefabricated exterior wall panel technology. The exterior wall of the building has multiple functions such as wall enclosure, heat preservation, fire prevention, and wind resistance. It also bears various load effects such as self-weight, wind load, earthquake action, and temperature action. The contribution to the stiffness of the main structure cannot be ignored. Especially for the exterior walls of buildings in severe cold and cold regions, their watertightness, airtightness, sound insulation, fire prevention, and thermal insulation are indispensable, which directly affect the thermal comfort of the indoor environment and living, living, and working conditions.

At present, there are mainly three types of exterior wall structures of prefabricated buildings. One is that the outer wall of the base layer adopts prefabricated assembled autoclaved aerated concrete slabs, and then adopts external wall insulation or external wall internal insulation technology to achieve external wall insulation and energy saving. The advantage is that it realizes the prefabricated assembly of the exterior wall panels and the insulation of the exterior wall. The disadvantage is that the service life of the exterior insulation is only 25 years, which is not synchronized with the service life of the base wall, and when the insulation material is a B-grade material, it needs to be installed on each floor. Add fire-resistant isolation belts and fire-resistant windows with fire-resistant integrity not less than 0.50h. The second is to directly use the "sandwich" type heavy sandwich insulation structure wall panels, that is, the inner and outer sides are respectively equipped with reinforced concrete protective layers of no less than 50mm, and the middle is an organic or inorganic insulation core material. The advantage is that the life of the wall and the insulation are the same and the prefabricated construction is realized. The disadvantage is that the weight is large, the on-site hoisting is difficult, and the installation and construction efficiency is not high. The third is to directly use the "sandwich" type lightweight sandwich insulation structure wall panels. The difference from the former heavy structure wall panels is that the internal core material composite steel keel structure adopts A-level insulation materials, and the inner and outer sides are composited. One layer of calcium silicate board or fiber cement board has the advantage of catering to the requirements for the combustion performance of materials used as building exterior walls to be Class A, without the need to set fire barriers and fire-resistant windows that meet the fire-resistant integrity of not less than 0.50h. The wall is light and high-strength. The disadvantage is that the base wall is a light material, and its thermal insulation performance in winter can meet the requirements, but its thermal insulation performance in summer is poor, and the fire resistance limit of its composite wall may not meet the design requirements.

Utility model content

Aiming at the deficiencies of the prior art, the utility model provides a prefabricated composite assembly type thermal insulation structure integrated wallboard to solve the problem of the same service life of the wall and the main structure in the background technology, and to overcome wall enclosure, heat preservation and heat insulation conflict with fire protection.

The utility model is achieved through the following technical solutions:

The utility model provides a prefabricated composite assembly type integrated wallboard with thermal insulation structure, which comprises a protective layer fixedly connected in sequence, an outer autoclaved aerated concrete slab layer, a thermal insulation layer, an inner autoclaved aerated concrete slab layer, the thermal insulation layer A light steel keel is compounded inside, and the two ends of the light steel keel are respectively fixedly connected with the outer autoclaved aerated concrete slab and the inner autoclaved aerated concrete slab.

Preferably, the light steel keel is thin-walled C-shaped steel, square steel or angle steel treated with anti-corrosion and anti-rust treatment, the wall thickness is not less than 2.0mm, and the steel strength grade is not lower than Q235B.

Preferably, an asbestos-free calcium silicate board or cement fiber slab is fixed between the thermal insulation layer and the outer autoclaved aerated concrete slab, Fixed with waterproof and breathable membrane.

Preferably, a waterproof breathable membrane is fixed between the thermal insulation layer and the outer autoclaved aerated concrete slab, and asbestos-free calcium silicate is fixed between the thermal insulation layer and the inner autoclaved aerated concrete slab. board or cement fiber board.

Preferably, the thickness of the asbestos-free calcium silicate board or cement fiber board is 6-12mm.

Preferably, the protection layer is a 3-5 mm thick anti-crack mortar composite alkali-resistant glass fiber mesh protection layer.

Preferably, both the outer autoclaved aerated concrete slab and the inner autoclaved aerated concrete slab are 50-100 mm thick autoclaved aerated concrete slabs with interface treatment.

Preferably, rock wool, rubber powder polystyrene particle slurry or extruded board insulation core material layer.

The technical solution provided by the embodiment of the utility model may include the following beneficial effects:

(1) The functions of wall enclosure, thermal insulation and fire prevention are realized in one, and the internal light steel keel is used as the wall structure to withstand the wall panel's own weight, wind load, earthquake action, temperature action, etc., and the wall is light High-strength, which belongs to the integration technology of building insulation and structure that is currently popularized and applied.

(2) The wall and the main structure can simultaneously meet the design requirements of a service life of no less than 50 years. Because the force-bearing structure of the wall is the internal light steel keel structure, it is connected to the main structure through reliable connection technology, and other structural materials of the wallboard are attached to the light steel keel structure as an auxiliary weight, so the force of the wallboard structure is clear and the wall The connection between the board and the main structure is reliable, and the safety of the main structure is ensured by the structural design. Therefore, the safety level of the structural components among the wall panel structure, the connection between the wall panel and the main body, and the main structure are the same, which is different from the traditional external thermal insulation technology. With inner insulation technology.

(3) The material is of high quality and low price, and the wall is light and high-strength. The autoclaved aerated concrete slab is used as the external enclosure material of the wall, combined with light-weight and high-efficiency thermal insulation materials, and the light steel keel structure is used as the stressed skeleton to realize the resource utilization of various material structures, especially the use of Autoclaved aerated concrete slab (commonly known as ALC slab), a high-quality and low-cost prefabricated panel commonly used in engineering, gives full play to the performance advantages of various materials and the advantages of economical materials, and reduces the cost of materials. At the same time, the self-weight of the wall is reduced, and the construction cost is reduced. Its thickness is about 180-250mm, which can meet the design requirements of self-insulation of the wall.

(4) Factory prefabricated production is simple, and on-site installation is quick and convenient, which improves production and construction efficiency. The prefabricated autoclaved aerated concrete slab is not only cheap, but also easy to obtain materials, and can be purchased directly. The light steel keel structure can directly adopt antirust-treated thin-walled light steel components, and can be easily prefabricated in the factory by welding, bolting or self-drilling and self-tapping screw connections. The combustion performance grade of the insulation material can be A grade or B grade. It is of high quality and low price, and it is convenient to obtain materials and process locally. and installation, improving production and construction efficiency.

(5) The main characteristics and process characteristics of its production and preparation not only give full play to the advantages of prefabrication, but also reflect the flexibility of on-site assembly according to local conditions. The core material and the outer protective structure are combined with the autoclaved aerated concrete slab on the inner side of the wall at the construction site, and then the outer prefabricated components are reliably connected to the inner slab installed on site. In this way, the combination of factory prefabricated production and on-site construction and installation makes the wallboard more convenient to connect with the main structure, strengthens the overall safety and overall working performance of the wallboard itself, and overcomes the discreteness of various structural materials .

(6) The wall can meet the current fire protection design requirements without setting fire barriers and doors and windows that meet the fire resistance integrity requirements of not less than 0.50h, realizing the technical advantages of energy saving and fire prevention.

(7) The waterproof and breathable membrane installed close to the thermal insulation material in the wall can effectively avoid the phenomenon of condensation on the inside of the wall caused by the temperature difference between indoor and outdoor of the composite wall, which can not only prevent the infiltration of external moisture, but also ensure the protection of the wall The free circulation of water vapor inside improves the wall structure.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, for those skilled in the art , on the premise of not paying creative work, other drawings can also be obtained based on these drawings.

Fig. 1 is a structural schematic diagram of a prefabricated composite assembly type thermal insulation structure integrated wall panel provided by the embodiment of the utility model.

Fig. 2 is a structural schematic diagram of another prefabricated composite assembly type thermal insulation structure integrated wall panel provided by the embodiment of the present utility model.

As shown in the figure: insulation layer 1, outer autoclaved aerated concrete slab 2, asbestos-free calcium silicate board or cement fiber slab 3, insulation layer 4, bolts 5, inner autoclaved aerated concrete slab 6, light steel Keel 7.

Detailed ways

As introduced in the background technology, for the deficiencies and drawbacks of the existing three prefabricated exterior wall technology structures and engineering applications, it is not difficult to see that the A-level combustion performance of the wall construction materials, the fire resistance and fire prevention of the wall, and the Body thermal insulation is the key to prefabricated walls. In view of the deficiencies and shortcomings in the construction form and engineering application of the prefabricated exterior wall above, combined with factors such as the economic cost and benefit of wall materials, this application provides a prefabricated composite assembly type thermal insulation structure integrated wallboard.

The prefabricated composite prefabricated thermal insulation structure integrated wallboard provided by this application has a structure including a protective layer 1, an outer autoclaved aerated concrete slab layer 2, an asbestos-free calcium silicate board or a fiber cement slab 3, an insulation layer 4, waterproof and breathable Membranes, inner autoclaved aerated concrete slabs, etc. Among them, the insulation layer 4 is a structure composed of rock wool, rubber powder polystyrene particle slurry or extruded board (XPS board) and other insulation materials composited with light steel keel 7, and the inner and outer autoclaved aerated concrete panels are respectively connected with the middle light steel keel structure. It is reliably connected as a whole through welding, bolt connection or self-drilling and self-tapping screw connection, and has a built-in insulation layer to form a sandwich composite thermal insulation structure wall panel with functions of enclosure, thermal insulation and fire prevention. It solves the problem of the same service life of the wall and the main structure, improves the efficiency of production and construction and installation, overcomes the contradiction between wall enclosure, heat preservation, heat insulation and fire prevention, simplifies the production process, and the wall structure is simple. The connection and force transmission of the main structure are clear.

In order to enable those skilled in the art to better understand the technical solution in the utility model, the technical solution in the utility model embodiment will be clearly and completely described below. Obviously, the described embodiment is only a part of the utility model Examples, not all examples. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts shall belong to the protection scope of the present utility model.

Referring to FIG. 1 , it is a schematic structural view of a prefabricated composite assembly type thermal insulation structure integrated wallboard provided by the utility model.

It can be seen from Fig. 1 that the prefabricated composite assembly-type thermal insulation structure integrated wallboard provided in this embodiment includes a 3-5mm thick anti-crack mortar composite alkali-resistant glass fiber mesh protective layer 1, 50mm thick, which is fixedly connected sequentially from outside to inside External autoclaved aerated concrete slab with interface treatment 2. 8mm thick medium density non-asbestos calcium silicate board or asbestos-free cement fiber slab 3. 120mm thick rock wool insulation core material layer 4 composite light steel keel structure 7. Waterproof and breathable membrane , and the 50mm thick inner autoclaved aerated concrete slab 6 with interface treatment; the 50mm thick outer autoclaved aerated concrete slab 2 and the 50mm inner autoclaved aerated concrete slab 6 are respectively connected to the middle light steel keel structure 7 through bolts 5 It is connected as a whole and has a built-in insulation layer to form a sandwich composite insulation structure wall panel with a wall thickness of about 220-240mm.

Wherein, the light steel keel structure 7 is a stressed structure composed of weather-resistant structural steel with a wall thickness not less than 2.0 mm such as thin-walled C-shaped steel, square steel, and angle steel that have undergone anti-corrosion and anti-rust treatment. For the stressed structure composed of bolt connection or self-drilling and self-tapping connection, the steel strength grade shall not be lower than Q235B. The light steel keel structure includes uprights, beams, diagonal braces and other stressed structural members, and is reliably connected with the 50mm thick outer autoclaved aerated concrete slab 2 and the 50mm thick inner autoclaved aerated concrete slab 6 through bolts. Describe the internal force transmitted by the prefabricated composite prefabricated thermal insulation structure integrated wallboard.

The light steel keel structure 7 is combined with the 120mm thick rock wool thermal insulation core material layer 4 at the middle position of the prefabricated composite assembly type thermal insulation structure integrated wallboard, and supports and fixes the 120mm thick rock wool thermal insulation core material layer 4 , which jointly constitute the sandwich structure layer of the prefabricated composite assembly type thermal insulation structure integrated wallboard.

The prefabricated composite prefabricated thermal insulation structure integrated wallboard provided in this example is prepared by the following method:

Step 1: Perform interface treatment on the prefabricated outer autoclaved aerated concrete slab 2 with a thickness of 50 mm, and apply an interface treatment agent on the inner and outer sides;

Step 2: Lay the outer autoclaved aerated concrete slab 2 with a thickness of 50mm flat, and bond and compound a layer of 8mm-thick asbestos-free calcium silicate board or asbestos-free cement fiber slab 3;

Step 3, place the prefabricated light steel keel structure 7 on the 8mm-thick asbestos-free calcium silicate board or asbestos-free cement fiber board 3, and use bolts 5 to securely fix the outer autoclaved aerated concrete board 2;

Step 4, composite 120mm thick rock wool insulation core material layer 4 in the light steel keel structure 7;

Step 5, covering the 120mm thick rock wool insulation core material layer 4 with a waterproof and breathable membrane;

Step 6: After the above layers are compounded, apply a layer of 3-5mm thick anti-cracking mortar on the outer side of the 50mm thick prefabricated outer autoclaved aerated concrete slab 2 and compound the alkali-resistant glass fiber mesh as the prefabricated composite assembled thermal insulation structure The protective layer 1 of the integrated wall panel constitutes a prefabricated assembled component;

Step 7: After transporting the prefabricated assembled components to the construction site of the project, and reliably installing and fixing them on the main structure, use bolts, self-drilling and self-tapping screws 5, etc. to connect the 50mm thick prefabricated autoclaved aerated concrete slab 6 with the prefabricated assembled components 10 Composite into an integral wallboard with a thickness of 50+8+120+50=228mm;

Step 8: Carry out exterior and interior surface construction work on the prefabricated composite prefabricated thermal insulation structure integrated wallboard.

When the prefabricated composite assembled thermal insulation structure integrated wallboard provided by this application is produced, its main characteristics and technological characteristics are that the light steel keel structure, thermal insulation core material and outer protective structure on the outside of the wall are prefabricated in the factory, and then installed on the construction site. The autoclaved aerated concrete slab on the inner side of the composite wall is assembled on site, and then the outer prefabricated components are reliably connected to the inner on-site installed panels, which not only gives full play to the advantages of prefabricated production, but also reflects the flexibility of on-site assembly according to local conditions.

Referring to FIG. 2 , it is a schematic structural diagram of another prefabricated composite assembly type thermal insulation structure integrated wallboard provided by the utility model.

It can be seen from Fig. 2 that the prefabricated composite prefabricated thermal insulation structure integrated wallboard provided in this embodiment includes a 3-5mm thick anti-crack mortar composite alkali-resistant glass fiber mesh protective layer 1, 75mm thick through the interface and fixedly connected sequentially from outside to inside Treated outer autoclaved aerated concrete slab 2, waterproof and breathable membrane, 65mm thick XPS insulation core layer 4 composite light steel keel structure 7, 8mm thick asbestos-free calcium silicate board or cement fiber slab 3 and 50mm thick interface treated The inner autoclaved aerated concrete slab 6; the 75mm thick outer autoclaved aerated concrete slab 2 and the 50mm thick inner autoclaved aerated concrete slab 6 are respectively connected to the middle light steel keel structure 7 by self-drilling and self-tapping screws. The built-in insulation layer forms a sandwich composite insulation structure wall panel with a thickness of about 200mm (75+65+8+50=198mm≈200mm).

The light steel keel structure 7 is a stress-bearing structure composed of weather-resistant structural steel with a wall thickness of not less than 2.0 mm such as thin-walled C-shaped steel, square steel, and angle steel that have undergone anti-corrosion and anti-rust treatment. It can also be welded or welded. For the stressed structure composed of self-drilling and self-tapping connections, the steel strength grade shall not be lower than Q235B. The light steel keel structure includes columns, beams, diagonal braces and other stressed structural members, which are reliably connected with the 75mm thick outer autoclaved aerated concrete slab 2 and 50mm thick inner autoclaved aerated concrete slab 6 through self-drilling and self-tapping screws. The keel structure bears the internal force transmitted from the prefabricated composite assembly type thermal insulation structure integrated wallboard. The light steel keel structure 7 is combined with the 65mm thick XPS thermal insulation core material layer 4 at the middle position of the prefabricated composite assembly type thermal insulation structure integrated wallboard, and supports and fixes the 65mm thick XPS thermal insulation core material layer 4, jointly The sandwich structure layer constituting the integrated wallboard of the prefabricated composite assembly type thermal insulation structure.

The prefabricated composite prefabricated thermal insulation structure integrated wallboard provided in this example is prepared by the following method:

Step 1: Perform interface treatment on the prefabricated outer autoclaved aerated concrete slab 2 with a thickness of 75 mm, and apply an interface treatment agent on the inner and outer sides;

Step 2: After laying the 75mm thick outer autoclaved aerated concrete slab 2 flat, place the prefabricated light steel keel structure 7 on the 75mm thick outer autoclaved aerated concrete slab 2 and use bolts, self-drilling and self-tapping screws 5 Reliable fixation with the 75mm thick outer autoclaved aerated concrete slab 2;

Step 3, covering the outer autoclaved aerated concrete slab 2 with a waterproof and breathable membrane; this layer may not be provided;

Step 4, composite a 65mm thick XPS insulation core material layer 4 in the light steel keel structure 7;

Step 5, bonding and compounding a layer of 8mm thick non-asbestos calcium silicate board or non-asbestos cement fiber board 3 on the 65mm thick XPS insulation core material layer 4;

Step 6: After the above layers are compounded, apply a layer of 3-5 mm thick anti-cracking mortar on the outer side of the prefabricated 75 mm thick outer autoclaved aerated concrete slab 2 and compound the alkali-resistant glass fiber mesh as the prefabricated composite assembled thermal insulation structure The protective layer 1 of the integrated wall panel constitutes a prefabricated assembled component;

Step 7: Transport the prefabricated assembled components to the construction site of the project, and after they are reliably installed and fixed on the main structure, use self-drilling and self-tapping screws 5 to combine the prefabricated outer autoclaved aerated concrete slab 2 and the prefabricated assembled components into a wall An integral wallboard with a thickness of about 200mm (75+65+8+50=198mm≈200mm);

Step 8: Carry out exterior and interior surface construction work on the prefabricated composite prefabricated thermal insulation structure integrated wallboard.

Of course, the above description is not limited to the above example, the undescribed technical features of the utility model can be realized through or adopt the existing technology, and will not be repeated here; the above embodiments are only used to illustrate the technical solution of the utility model and are not For the limitation of the present utility model, the utility model has been described in detail with reference to the preferred embodiment, those of ordinary skill in the art should understand that the changes and improvements made by those of ordinary skill in the art within the essential scope of the present utility model Type, addition or replacement all do not depart from the purpose of the utility model, and should also belong to the scope of protection of the claims of the utility model.

Claims (6)

1. a kind of prefabricated combined assembled insulation construction integrated wallboard, which is characterized in that including the protection being fixedly connected sequentially Layer (1), outside autoclaved aerated concrete slab layer (2), insulating layer (4), inside autoclaved aerated concrete slab layer (6), the heat preservation Layer (4) in is compounded with lightgage steel joist (7), the both ends of the lightgage steel joist (7) respectively with the outside autoclaved aerated concrete slab Layer (2) is fixedly connected with the inside autoclaved aerated concrete slab layer (6)；

The lightgage steel joist (7) is thin-walled C-shaped steel, square steel or the angle steel Jing Guo antiseptic and rustproof processing, and wall thickness is not less than 2.0mm, Strength classes of structural steel is not less than Q235B；

Asbestos-free calcium silicate board or water are fixed between the insulating layer (4) and the outside autoclaved aerated concrete slab layer (2) Mud fiber plate (3)；

Waterproof ventilated membrane is fixed between the insulating layer (4) and the inside autoclaved aerated concrete slab layer (6)；

Waterproof ventilated membrane is fixed between the insulating layer (4) and the outside autoclaved aerated concrete slab layer (2).

2. the prefabricated combined assembled insulation construction integrated wallboard of one kind according to claim 1, which is characterized in that described It is fixed with asbestos-free calcium silicate board between insulating layer (4) and the inside autoclaved aerated concrete slab layer (6) or Cement fibre is flat Plate (3).

3. the prefabricated combined assembled insulation construction integrated wallboard of one kind according to claim 2, which is characterized in that described Asbestos-free calcium silicate board or Cement fibre plate (3) with a thickness of 6-12mm.

4. the prefabricated combined assembled insulation construction integrated wallboard of one kind according to claim 1-3, feature It is, the protective layer (1) is the compound alkali-resistant glass fiber mesh protective layer of anticracking grout of 3-5mm thickness.

5. the prefabricated combined assembled insulation construction integrated wallboard of one kind according to claim 1-3, feature It is, the outside autoclaved aerated concrete slab layer (2) and the inside autoclaved aerated concrete slab layer (6) are 50-100mm The thick autoclaved aerated concrete slab through interface processing.

6. the prefabricated combined assembled insulation construction integrated wallboard of one kind according to claim 1-3, feature It is, the insulating layer (4) is rock wool, glue powder polyphenyl particle slurry or extruded sheet heat insulation core material layer.