An assembled thermal insulation wallboard adopting staggered joint and a construction method thereof
By combining staggered splicing and adhesive anchoring, the problems of unstable connection and thermal bridging effect in traditional prefabricated buildings are solved, achieving efficient and stable thermal insulation performance and easy construction of prefabricated insulation wall panel connections.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HARBIN INST OF TECH
- Filing Date
- 2025-06-20
- Publication Date
- 2026-07-31
AI Technical Summary
In traditional prefabricated buildings, the adhesive method has large positioning deviations, complex construction and difficult disassembly, while the mechanical fixing method is prone to deterioration of mechanical properties and thermal bridging effect, making it difficult to meet the long-term performance requirements of cold regions.
Prefabricated insulated wall panels with staggered joints are constructed by splicing autoclaved aerated concrete insulation boards with concrete wall panels at staggered joints, combining adhesive and anchoring connections. Fiberglass reinforced plastic materials are used, and semi-thick splicing tenons and grooves are used for connection to avoid through gaps, which are then filled with expanding foam.
It improves the integrity and durability of the insulation layer, reduces the risk of leakage, avoids the thermal bridging effect, simplifies the construction process, and enhances the connection strength and stability.
Smart Images
Figure CN120625822B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of prefabricated building technology, and in particular relates to a prefabricated insulated wall panel with staggered splicing and its construction method. Background Technology
[0002] With the acceleration of industrialization in the construction industry, prefabricated buildings are becoming the mainstream direction of the construction industry due to their advantages such as high construction efficiency, stable quality, energy saving and environmental protection. In applications in frigid regions, prefabricated insulated wall panels are key components. Their insulation layer is composed of multiple prefabricated panels, and the connection technology directly affects the building performance. Currently, the commonly used methods are divided into two categories: one is to use adhesives to directly bond the insulation layer to the wall; the other is to use mechanical components such as bolts and anchors for physical fixing, using mechanical interlocking force to achieve rigid connection. The two processes each have their own applicable scenarios in frigid regions, providing reliable technical support for prefabricated building insulation systems.
[0003] However, traditional connection technologies have revealed significant drawbacks in practical applications: adhesive bonding methods suffer from low positioning accuracy of insulation boards, complex construction processes that rely on highly skilled workers, and difficulties in later maintenance and disassembly, which restricts the efficiency of industrialized construction; mechanical fixing methods are prone to a decrease in the structural strength of wall panels due to bolt corrosion and aging, and are also prone to thermal bridging effects that lead to a decline in insulation performance, making it difficult to meet the long-term performance requirements of enclosure systems in extremely cold regions. Summary of the Invention
[0004] In view of this, the present invention aims to propose a prefabricated thermal insulation wall panel with staggered splicing and its construction method, so as to solve the problems of large positioning deviation and difficulty in dismantling and modification of the adhesive method, and avoid the risk of mechanical performance degradation and thermal bridging effect caused by bolt aging in the mechanical fixing method.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: A prefabricated insulated wall panel with staggered joint splicing includes autoclaved aerated concrete (AAC) insulation boards, insulation layer embedded parts, wall panel embedded parts, and concrete wall panels. Several AAC insulation boards are provided, connected by staggered joint splicing. Each AAC insulation board contains an insulation layer embedded part, which is connected to the wall panel embedded parts. The wall panel embedded parts are installed within the concrete wall panels.
[0006] Furthermore, the autoclaved aerated concrete insulation board is connected to the concrete wall panel by an adhesive, and the joints between adjacent autoclaved aerated concrete insulation boards are filled with expanding foam.
[0007] Furthermore, the autoclaved aerated concrete insulation board has semi-thick splicing tenons on both sides and semi-thick splicing grooves on the other two sides. The semi-thick splicing tenons are connected to the semi-thick splicing grooves of the adjacent autoclaved aerated concrete insulation board. An anchoring protrusion is installed at the center of the autoclaved aerated concrete insulation board, and the insulation layer embedded part is installed in the anchoring protrusion.
[0008] Furthermore, the length of the embedded part of the insulation layer is greater than the length of the anchoring protrusion, a through screw hole is opened in the center, and an embedded protrusion is provided on the outside.
[0009] Furthermore, the wall panel embedded part includes an embedded plate, and the embedded plate has a central circular hole at its center.
[0010] Furthermore, the inner side of the concrete wall panel is provided with several reserved circular holes, the center of which corresponds to the center of the central circular hole. The outer side of the concrete wall panel is provided with several reserved grooves, the size and position of which correspond to the size and position of the embedded protrusions.
[0011] Furthermore, the embedded parts of the insulation layer are connected to the embedded parts of the wall panel by bolts.
[0012] Furthermore, the materials used for the insulation layer embedded parts, wall panel embedded parts, and bolts are all glass fiber reinforced plastic.
[0013] A construction method for prefabricated insulated wall panels using staggered joint splicing includes the following steps: Step 1: First, in the factory, glass fiber reinforced plastic is used to process wall panel embedded parts, insulation layer embedded parts, and several bolts through molds. Then, autoclaved aerated concrete insulation boards with built-in insulation layer embedded parts are poured. The insulation layer embedded parts extend into the autoclaved aerated concrete insulation board from the center of the anchoring protrusion.
[0014] Step 2: On the construction site, according to the specific construction plan, the wall panel embedded parts are tied to the designated positions by positioning and laying out lines. Concrete is poured on site to obtain concrete wall panels with built-in wall panel embedded parts. When pouring, a round hole is reserved on the inner side of the concrete wall panel at the wall panel embedded parts so that a commonly used size hexagonal wrench can pass through, and a groove corresponding to the size of the anchoring protrusion is reserved on the outer side. Step 3: After the concrete wall panel has cured, install the insulation layer. To prevent excessive bolt stress during construction, install the autoclaved aerated concrete (AAC) insulation boards sequentially from the bottom to the top of the concrete wall panel. First, clean the outer base layer of the concrete wall panel and evenly apply ACC special adhesive. Then, embed the anchoring protrusions of the AAC insulation board into the grooves on the outer side of the concrete wall panel. Next, screw the bolts through the inner round holes of the concrete wall panel and the center round holes of the wall panel's embedded parts into the embedded parts of the insulation layer. Then, splice the next AAC insulation board through the half-thickness splicing protrusions and half-thickness splicing grooves around the board. Repeat the operation until all the AAC insulation boards are installed.
[0015] Step 4: Use expanding foam to fill the gaps between autoclaved aerated concrete insulation boards and the inner round holes of the concrete wall panels. After complete curing, a reliable anchoring connection between the concrete wall panels and the insulation layer is achieved.
[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. The autoclaved aerated concrete insulation layer of this invention is assembled by splicing prefabricated insulation boards. It uses a method of aligning and splicing several grooves and protrusions to facilitate maintenance and replacement. At the same time, it makes the splice joints no longer continuous, which has a lower risk of leakage than ordinary splice joints, a smaller degree of overall loss, better insulation performance, and avoids the problem of obvious splice marks on the insulation boards after splicing and stress concentration.
[0017] 2. The connection method between the insulation layer and the wall panel described in this invention adopts a combination of anchoring and adhesive connection. This connection method has high strength and is simple to construct, solving the problem of low connection strength of traditional insulation materials.
[0018] 3. The anchoring devices, including the embedded parts of the insulation layer, the embedded parts of the wall panel, and the bolts, of this invention are all made of GFRP (glass fiber reinforced plastic). Using this material can effectively improve the durability of the components, increase their service life, and avoid the thermal bridging effect. Attached Figure Description
[0019] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a schematic diagram of the structure of a prefabricated insulated wall panel with staggered joints as described in this invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of a prefabricated insulated wall panel with staggered joints as described in this invention. Figure 2 ; Figure 3This is a schematic diagram of the internal structure of a prefabricated insulated wall panel with staggered joints as described in this invention. Figure 4 This is a schematic diagram of a prefabricated insulated wall panel using staggered joints, as described in this invention. Figure 1 ; Figure 5 This is a schematic diagram of a prefabricated insulated wall panel using staggered joints, as described in this invention. Figure 2 ; Figure 6 This is an exploded view of a partial anchoring structure of a prefabricated insulated wall panel with staggered joints as described in this invention. Figure 7 This is a partial anchoring sectional view of a prefabricated insulated wall panel with staggered joints as described in this invention.
[0020] In the picture: 1: Autoclaved aerated concrete insulation board; 1-1: Half-thickness splicing tenon; 1-2: Half-thickness splicing groove; 1-3: Anchoring protrusion; 2: Insulation layer embedded part; 2-1: Embedded protrusion; 3: Wall panel embedded part; 3-1: Embedded plate; 3-2: Central round hole; 4: Bolt; 5: Concrete wall panel; 5-1: Reserved round hole; 5-2: Reserved groove; 6: Adhesive; 7: Expanding foam. Detailed Implementation
[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other, and the described embodiments are only some embodiments of the present invention, not all embodiments.
[0022] Detailed Implementation Method 1: See Figure 1-7 This embodiment describes a prefabricated insulated wall panel using staggered splicing, characterized in that it includes autoclaved aerated concrete (AAC) insulation boards 1, insulation layer embedded parts 2, wall panel embedded parts 3, and concrete wall panels 5. Several AAC insulation boards 1 are provided, and these boards are connected by staggered splicing. Each AAC insulation board 1 contains an insulation layer embedded part 2, which is connected to the wall panel embedded part 3. The wall panel embedded part 3 is installed within the concrete wall panel 5.
[0023] In this embodiment, the autoclaved aerated concrete insulation board 1 and the concrete wall panel 5 are connected by an adhesive 6, and the joints of adjacent autoclaved aerated concrete insulation boards 1 are filled with expanding foam 7.
[0024] In this embodiment, the autoclaved aerated concrete (AAC) insulation board 1 has semi-thick splicing tenons 1-1 on both sides and semi-thick splicing grooves 1-2 on the other two sides. The semi-thick splicing tenons 1-1 are connected to the semi-thick splicing grooves 1-2 of the adjacent AAC insulation board 1. An anchoring protrusion 1-3 is installed at the center of the AAC insulation board 1. The insulation layer embedded part 2 is installed in the anchoring protrusion 1-3. The connection between the insulation layer and the wall panel adopts a connection method that combines anchoring and adhesive connection. This connection method has high strength and is simple to construct, solving the problem of low connection strength of traditional insulation materials.
[0025] In this embodiment, the length of the pre-embedded part 2 of the insulation layer is greater than the length of the anchoring protrusion 1-3, a through screw hole is opened in the center, and a pre-embedded protrusion 2-1 is provided on the outside.
[0026] In this embodiment, the wall panel embedded part 3 includes an embedded plate 3-1, and the embedded plate 3-1 has a central circular hole 3-2 at its center.
[0027] In this embodiment, the inner side of the concrete wall panel 5 is provided with a plurality of reserved circular holes 5-1, the center of the reserved circular holes 5-1 corresponds to the center of the central circular hole 3-2, and the outer side of the concrete wall panel 5 is provided with a plurality of reserved grooves 5-2, the reserved grooves 5-2 correspond to the size and position of the embedded protrusions 2-1.
[0028] In this embodiment, the insulation layer embedded part 2 and the wall panel embedded part 3 are connected by bolts 4.
[0029] In this embodiment, the materials of the insulation layer embedded part 2, the wall panel embedded part 3 and the bolt 4 are all glass fiber reinforced plastic. Using this material can effectively improve the durability of the components, increase their service life, and avoid the occurrence of thermal bridge effect.
[0030] During construction, firstly, in the factory, glass fiber reinforced plastic is used to process wall panel embedded parts 3, insulation layer embedded parts 2, and several bolts 4 using molds. Then, autoclaved aerated concrete insulation board 1 with built-in insulation layer embedded parts 2 is poured. The insulation layer embedded parts 2 extend into the autoclaved aerated concrete insulation board 1 from the center of the anchoring protrusions 1-3. At the construction site, according to the specific construction plan, the wall panel embedded parts 3 are tied to the designated positions by positioning and laying out lines. Finally, concrete is poured on site to obtain the concrete wall with built-in wall panel embedded parts 3. For the concrete wall panel 5, during pouring, a round hole 5-1 is pre-drilled on the inner side of the concrete wall panel 5 at the pre-embedded part 3, allowing a commonly used hexagonal wrench to pass through. A groove 5-2 corresponding to the size of the anchoring protrusion 1-3 is pre-drilled on the outer side. After the concrete wall panel 5 has cured, the insulation layer is installed. To prevent excessive stress on the bolts 4 during construction, the autoclaved aerated concrete insulation boards 1 are installed sequentially from the bottom to the top of the concrete wall panel 5. First, the outer base layer of the concrete wall panel 5 is cleaned and ACC special adhesive 6 is evenly applied. Then, the autoclaved aerated concrete insulation board 1 is installed. Anchoring protrusions 1-3 of concrete insulation board 1 are embedded into grooves 5-2 on the outer side of concrete wall panel 5. Bolts 4 are then passed through the inner round holes 5-1 and 3-2 of the wall panel embedded parts and screwed into the embedded parts 2 of the insulation layer. Next, the next autoclaved aerated concrete insulation board 1 is spliced with the half-thickness splicing protrusions 1-1 and half-thickness splicing grooves 1-2 around the board. The operation is repeated until all autoclaved aerated concrete insulation boards 1 are installed. Expanding foam 7 is used to fill the splicing joints between the autoclaved aerated concrete insulation boards 1. After the gap and the inner circular hole 5-1 of the concrete wall panel are fully cured, a reliable anchoring connection is achieved between the concrete wall panel 5 and the insulation layer. The autoclaved aerated concrete insulation layer is assembled by splicing prefabricated insulation panels. It uses several grooves and protrusions to align and splice, which is convenient for maintenance and replacement. At the same time, it makes the splice joints no longer continuous, which has a lower risk of leakage than ordinary splice joints, a lower degree of overall loss, better insulation performance, and avoids the problem of obvious splice marks and stress concentration after splicing.
[0031] Detailed Implementation Method 2: See Figure 1-7 This embodiment describes a construction method for prefabricated insulated wall panels using staggered joint splicing, which includes the following steps: Step 1: First, in the factory, glass fiber reinforced plastic is used to process wall panel embedded parts 3, insulation layer embedded parts 3, and several bolts 4 through molds. Then, the autoclaved aerated concrete insulation board 1 with built-in insulation layer embedded parts 2 is poured. The insulation layer embedded parts 2 extend into the autoclaved aerated concrete insulation board 1 from the center of the anchoring protrusions 1-3.
[0032] Step 2: On the construction site, according to the specific construction plan, the wall panel embedded part 3 is tied to the designated position by positioning and laying out lines. Concrete is poured on site to obtain the concrete wall panel 5 with the wall panel embedded part 3 inside. When pouring, a round hole 5-1 is reserved on the inner side of the concrete wall panel 5 at the wall panel embedded part 3 so that a commonly used hexagonal wrench can pass through, and a groove 5-2 corresponding to the size of the anchoring protrusion 1-3 is reserved on the outer side. Step 3: After the concrete wall panel 5 has cured, install the insulation layer. To prevent excessive stress on the bolts 4 during construction, install the autoclaved aerated concrete (AAC) insulation boards 1 sequentially from the bottom to the top of the concrete wall panel 5. First, clean the outer base layer of the concrete wall panel 5 and evenly apply ACC special adhesive 6. Then, embed the anchoring protrusions 1-3 of the AAC insulation board 1 into the outer grooves 5-2 of the concrete wall panel 5. Next, screw the bolts 4 through the inner round holes 5-1 and the center round holes 3-2 of the wall panel embedded parts into the insulation layer embedded parts 2. Then, splice the next AAC insulation board 1 through the half-thickness splicing protrusions 1-1 and the half-thickness splicing grooves 1-2 around the board. Repeat the operation until all the AAC insulation boards 1 are installed.
[0033] Step 4: Use expanding foam 7 to fill the joints between autoclaved aerated concrete insulation boards 1 and the inner round holes 5-1 of the concrete wall panel. After complete curing, a reliable anchoring connection between the concrete wall panel 5 and the insulation layer is achieved.
[0034] The specific embodiments of the present invention disclosed above are merely illustrative of the invention. These embodiments do not exhaustively describe all details, nor do they limit the invention to the specific embodiments described. Many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention.
Claims
1. A fabricated thermal insulation wall panel using staggered joint, characterized in that: The system includes autoclaved aerated concrete (AAC) insulation boards (1), insulation layer embedded parts (2), wall panel embedded parts (3), and concrete wall panels (5). Several AAC insulation boards (1) are provided, and these boards are connected by staggered splicing. Each AAC insulation board (1) contains an insulation layer embedded part (2), which is connected to the wall panel embedded part (3). The wall panel embedded part (3) is installed within the concrete wall panel (5). Each AAC insulation board (1) has a half-thickness splicing tenon (1-1) on one side and a half-thickness splicing groove (1-2) on the other two sides. The half-thickness splicing tenon (1-1) engages with the half-thickness splicing groove (1-2) of the adjacent AAC insulation board (1). The autoclaved aerated concrete insulation board (1) is connected, and an anchoring protrusion (1-3) is installed at the center of the board. The insulation layer embedded part (2) is installed in the anchoring protrusion (1-3). The length of the insulation layer embedded part (2) is greater than the length of the anchoring protrusion (1-3). A through screw hole is opened in the center, and an embedded protrusion (2-1) is provided on the outside. The wall panel embedded part (3) includes an embedded plate (3-1). The embedded plate (3-1) has a central circular hole (3-2) in the center. The concrete wall panel (5) has several reserved circular holes (5-1) on the inner side. The center of the reserved circular hole (5-1) corresponds to the center of the central circular hole (3-2). The concrete wall panel (5) has several reserved grooves (5-2) on the outer side. The reserved grooves (5-2) correspond to the size and position of the embedded protrusion (2-1).
2. The prefabricated insulated wall panel with staggered joints according to claim 1, characterized in that: The autoclaved aerated concrete insulation board (1) is connected to the concrete wall panel (5) by an adhesive (6), and the joints of adjacent autoclaved aerated concrete insulation boards (1) are filled with expanding foam (7).
3. The prefabricated thermal insulation wall panel employing staggered joint according to claim 1, characterized in that: The insulation layer embedded part (2) and the wall panel embedded part (3) are connected by bolts (4).
4. The prefabricated thermal insulation wall panel employing staggered joint according to claim 3, characterized in that: The materials of the insulation layer embedded parts (2), wall panel embedded parts (3) and bolts (4) are all glass fiber reinforced plastic.
5. A construction method for prefabricated insulated wall panels using staggered joint splicing as described in any one of claims 1-4, characterized in that: It includes the following steps: Step 1: First, in the factory, glass fiber reinforced plastic is used to process wall panel embedded parts (3), insulation layer embedded parts (2), and several bolts (4) through molds. Then, the autoclaved aerated concrete insulation board (1) with built-in insulation layer embedded parts (2) is poured. The insulation layer embedded parts (2) extend from the center of the anchoring protrusions (1-3) into the autoclaved aerated concrete insulation board (1). Step 2: At the construction site, according to the specific construction plan, the wall panel embedded part (3) is tied to the designated position by positioning and laying out lines. Concrete is poured on site to obtain the concrete wall panel (5) with the embedded part (3) inside. During pouring, a reserved round hole (5-1) is provided on the inner side of the concrete wall panel (5) at the wall panel embedded part (3), and a reserved groove (5-2) corresponding to the size of the anchoring protrusion (1-3) is reserved on the outer side. Step 3: After the concrete wall panel (5) has been cured, the insulation layer is installed. The autoclaved aerated concrete insulation board (1) is installed from the bottom to the top of the concrete wall panel (5). First, the outer base layer of the concrete wall panel (5) is cleaned and the adhesive (6) is applied evenly. Then, the anchoring protrusion (1-3) of the autoclaved aerated concrete insulation board (1) is embedded into the reserved groove (5-2) on the outer side of the concrete wall panel (5). Then, the bolt (4) is passed through the reserved round hole (5-1) on the inner side of the concrete wall panel and the center round hole (3-2) of the wall panel embedded part and screwed into the embedded part (2) of the insulation layer. Then, the next autoclaved aerated concrete insulation board (1) is spliced through the half-thick splicing protrusion (1-1) and the half-thick splicing groove (1-2) around the board. The operation is repeated until all the autoclaved aerated concrete insulation boards (1) are installed. Step 4: Use expanding foam (7) to fill the joint gaps between autoclaved aerated concrete insulation boards (1) and the pre-reserved round holes (5-1) on the inner side of the concrete wall panel. After complete curing, a reliable anchoring connection between the concrete wall panel (5) and the insulation layer is achieved.