Foamed ceramic plate connecting structure

Abstract

The utility model discloses a kind of foamed ceramic plate connecting structures, including foamed ceramic plate body and connecting component, the foamed ceramic plate body is equipped with hole, the hole is formed with opening in the back of the foamed ceramic plate body, UHPC slurry is filled in the hole to form UHPC anchor bolt column;At least a part of structure of the connecting component is embedded in the UHPC anchor bolt column through the opening, and the connecting component is used to connect the foamed ceramic plate body to support structure.The utility model technical scheme can effectively improve the strength and bearing performance of anchoring area, avoid the burst or drop due to the brittleness of plate material, improve connection safety and durability, suitable for factory prefabrication and on-site modular installation, construction is convenient, and quality is controllable.

Description

Technical Field

[0001] This invention relates to the field of building curtain wall connection structure technology, and in particular to a foamed ceramic panel connection structure. Background Technology

[0002] With the continuous improvement of industrialization in the construction industry, building facades not only bear the basic functions of building envelope and structural protection, but also, as an important component of building appearance, play a decisive role in the aesthetic effect and stylistic expression of buildings. Facade decoration refers to the process of covering, modifying, and structurally treating the exterior wall surface of a building, with the aim of integrating functions such as protection, aesthetics, thermal insulation, and energy conservation. Currently, the types of panels used in facade decoration are becoming increasingly diverse, covering natural stone, ceramic thin slabs, metal composite panels, foamed ceramic panels, etc. Especially in high-rise buildings, commercial complexes, and public buildings, the dry-hanging installation method of panel curtain walls is widely used in modern building exterior wall systems due to its advantages such as high assembly efficiency, convenient maintenance, and strong replaceability.

[0003] Currently, the installation of panel curtain wall systems typically uses mechanical hangers or back bolts as connecting components. Connection methods mainly include T-type hangers, L-type hangers, and back bolts embedded within the panels. For non-metallic brittle materials such as foamed ceramic panels, conventional back bolt connections have significant structural defects. Specifically, due to the high rigidity and poor ductility of foamed ceramic panels, the material's internal structure cannot effectively resist the local pull-out force or locking stress applied by the back bolts, making it prone to localized cracking during construction. Furthermore, in long-term use, if the locking force is insufficient or subjected to external forces such as wind loads, the panels are at risk of detachment. In addition, traditional back bolts require direct drilling and driving of anchors into the brittle panels, limiting installation accuracy and making connection strength unstable due to construction errors, thus affecting the overall safety of the curtain wall. To address these issues, there is an urgent need for a structural solution that can improve the strength of the back bolt anchorage zone, enhance connection stability, and possess good construction adaptability, thereby resolving the core defects in the connection technology of existing foamed ceramic panel curtain wall systems. Utility Model Content

[0004] The main objective of this invention is to solve the technical problems of insufficient anchoring strength, poor connection reliability, and low construction accuracy in the existing foamed ceramic plate back bolt connection.

[0005] To achieve the above objectives, the present invention proposes a foamed ceramic plate connection structure, comprising a foamed ceramic plate body and a connecting member. The foamed ceramic plate body has holes, and the holes form openings on the back side of the foamed ceramic plate body. The holes are filled with UHPC slurry to form UHPC anchor posts. At least a portion of the structure of the connecting member is pre-embedded in the UHPC anchor posts through the openings. The connecting member is used to connect the foamed ceramic plate body to the supporting structure.

[0006] Optionally, a UHPC decorative layer is provided on the front side of the foamed ceramic panel body.

[0007] Optionally, the holes penetrate the front side of the foamed ceramic plate body, and the UHPC anchor post and the UHPC decorative layer form a material continuity during the molding process.

[0008] Optionally, the material of the UHPC decorative layer is cured on the front side of the foamed ceramic panel body.

[0009] Optionally, the edge of the UHPC decorative layer is flush with the edge of the foamed ceramic panel body.

[0010] Optionally, a UHPC reinforcement layer is provided on the back side of the foamed ceramic plate body, and the UHPC reinforcement layer has through holes reserved at the positions corresponding to the holes, so that the connecting components can pass through.

[0011] Optionally, the UHPC reinforcement layer and the UHPC anchor post form a material continuity during the molding process.

[0012] Optionally, the material of the UHPC reinforcement layer is cured on the back side of the foamed ceramic plate body.

[0013] Optionally, the edge of the UHPC reinforcement layer is flush with the edge of the foamed ceramic plate body.

[0014] This utility model employs a foamed ceramic plate connection structure. By pre-setting holes in the foamed ceramic plate body and creating openings on the back side of these holes, ultra-high performance concrete (UHPC) grout can be injected to form locally reinforced UHPC anchor posts. Before the anchor posts are formed, a portion of the connecting component is pre-embedded within these openings, ensuring it is firmly encapsulated after the UHPC grout cures, thus forming a composite connection structure with the foamed ceramic plate body. In this way, the connection between the connecting component and the foamed ceramic plate is no longer a direct mechanical tension connection through bolts acting on the plate body, but rather an indirect force transmission through the intermediate UHPC anchor body, avoiding the problem of the brittle ceramic plate directly bearing concentrated stress.

[0015] The key to this structure lies in guiding the stress path of the connecting components to a high-strength UHPC anchor bolt embedded within the plate. This transforms the previously easily cracked connection area into an anchoring zone with high load-bearing capacity and significant plastic deformation capability. UHPC material itself possesses extremely high compressive and tensile strength, effectively absorbing the stress generated by the back bolts during tightening and long-term use after injection molding. It also exhibits excellent interfacial bonding properties, establishing a stable and reliable force transmission mechanism between the ceramic plate and the metal connectors. Furthermore, the opening is located on the back of the plate, facilitating the positioning and installation of the connecting components. This ensures the operability of the anchoring structure and adapts to the practical construction needs of factory prefabrication and rapid on-site assembly of the plates. The application of this structure not only improves connection strength and reliability but also reduces the requirements for plate precision and flexibility control, fundamentally solving the key problems of brittleness, failure, and difficult construction control inherent in traditional back bolt connections in foamed ceramic plates. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of one embodiment of the foamed ceramic plate connection structure of this utility model; Figure 2 for Figure 1 A sectional view with parts of the structure omitted; Figure 3 for Figure 2 A magnified view of a section at point A in the middle; Figure 4 for Figure 1 Top view.

[0018] Explanation of icon numbers: 1. Foamed ceramic panel body; 2. UHPC anchor bolt column; 3. Connecting components; 4. UHPC decorative layer; 5. UHPC reinforcing layer.

[0019] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0022] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the term "and / or" throughout the text includes three solutions; taking A and / or B as an example, it includes technical solution A, technical solution B, and a technical solution that simultaneously satisfies A and B. Furthermore, the technical solutions of various embodiments can be combined with each other, provided that they are feasible for those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0023] This utility model proposes a connection structure for foamed ceramic plates.

[0024] In the embodiments of this utility model, such as Figures 1 to 4 As shown, the foamed ceramic plate connection structure includes a foamed ceramic plate body 1 and a connecting member 3. The foamed ceramic plate body 1 has holes, and the holes form openings on the back side of the foamed ceramic plate body 1. The holes are filled with UHPC slurry to form UHPC anchor posts 2. At least a portion of the structure of the connecting member 3 is pre-embedded in the UHPC anchor posts 2 through the openings. The connecting member 3 is used to connect the foamed ceramic plate body 1 to the support structure.

[0025] The foamed ceramic plate body 1 is an inorganic non-metallic plate with a lightweight, porous structure, typically prepared by high-temperature sintering, exhibiting excellent thermal insulation, fire resistance, and environmental adaptability. The plate body contains multiple pores with openings formed on the back of the plate, facilitating the injection of filling material into the pores during subsequent processes.

[0026] The holes are structurally designed to form locally reinforced anchorage areas, filled with UHPC grout, which, after curing, forms UHPC anchor posts 2. UHPC (Ultra-High Performance Concrete) is a high-strength, high-toughness, and extremely durable composite cementitious material, typically containing cement, silica fume, quartz sand, steel fibers, polymer water-reducing agents, etc. Its compressive strength can reach over 150 MPa, and it possesses excellent fluidity and micro-bonding properties. The UHPC grout used in this embodiment should be a high-flowability injection type to ensure sufficient compaction within the complex ducts, forming a structurally continuous UHPC anchor post 2 after curing.

[0027] UHPC anchor bolt 2 is essentially a high-strength structural region locally constructed within the foamed ceramic plate body 1. This region is not directly exposed to the outside, but its function is to withstand the tensile and shear forces transmitted by the connecting member 3. Due to the excellent stress dispersion and crack resistance of UHPC material, the introduction of UHPC anchor bolt 2 effectively changes the problem of stress concentration at the connection point in the brittle base material of the ceramic plate, thereby significantly improving the safety and durability of the anchoring zone.

[0028] The connecting member 3 is used to fix the foamed ceramic panel body 1 to the underlying structural support system, such as a keel, steel column, or wall embedded part. The form of the connecting member 3 may vary depending on the application scenario. In some embodiments, the connecting member 3 can be a conventional back bolt, with one end having a threaded structure for inserting the hanger, and the other end being inserted into the hole for pre-embedding before grouting UHPC; it can also be a structural element with anchoring function, such as a metal anchor rod, sleeve bolt, or self-expanding chemical anchor. At least a portion of the length of the connecting member 3 is embedded in the UHPC anchor post 2, achieving dual fixation of mechanical embedding and interface bonding after the grout has cured.

[0029] The foamed ceramic panel connection structure of this application can be prefabricated in a factory during construction, including processes such as panel drilling, pre-embedding of connecting components 3, UHPC grouting, and curing, thereby forming a highly integrated, structurally stable curtain wall panel unit suitable for transportation and rapid on-site installation. Compared with the traditional method of directly embedding back bolts into brittle panels, this structure can effectively prevent the risk of panel cracking and detachment, ensuring connection reliability, while also facilitating adjustment and disassembly, improving the accuracy and efficiency of on-site construction.

[0030] In one alternative embodiment, a UHPC decorative layer 4 is provided on the front side of the foamed ceramic plate body 1.

[0031] Specifically, the "front side" referred to here is the side facing the outdoor environment after the curtain wall is installed, i.e., the visible cladding side of the building; in contrast, the back side is the side facing the building's base or connecting support structure. The UHPC decorative layer 4 is applied over this front side and bonded to the foamed ceramic panel body 1 to form a composite panel structure.

[0032] UHPC decorative layer 4 is made of ultra-high performance concrete (UHPC) material, which includes high-grade cement, silica fume, ultrafine quartz powder, quartz sand, high-performance water-reducing agent, steel fiber or polypropylene fiber, etc. This material maintains high strength while possessing good impact resistance and surface density, as well as excellent weather resistance, frost resistance, and corrosion resistance. The UHPC mix design of UHPC decorative layer 4 is typically guided by flowability and decorative molding performance, with fine aggregate particle size controlled below 1.2 mm to achieve high surface quality and pattern precision.

[0033] The UHPC decorative layer 4 can be integrally formed with the foamed ceramic panel 1 during the manufacturing process by compression molding or integral casting. Alternatively, it can be bonded and cured using a wet-contact casting method after the foamed ceramic panel 1 has been initially formed. The former method results in stronger interfacial bonding and better overall structural integrity; the latter method is more flexible and suitable for customized finishes. Regardless of the process used, the UHPC decorative layer 4 is firmly fixed to the front surface of the foamed ceramic panel 1 after curing, forming a continuous outer decorative layer.

[0034] The UHPC decorative layer 4 not only enhances the mechanical properties and impact resistance of the panel surface but also serves a decorative function. UHPC materials can achieve diverse surface effects, such as stone textures, metallic finishes, or exposed concrete textures, by altering mold textures, adding color additives, or adding surface coatings, to meet the design needs of different building facade styles. Its surface hardness and stain resistance are also superior to traditional finishing materials, which helps extend the aesthetic lifespan of building facades.

[0035] Optionally, the holes penetrate the front side of the foamed ceramic plate body 1, and the UHPC anchor post 2 and the UHPC decorative layer 4 form a material continuity during the molding process.

[0036] In this application, the holes in the foamed ceramic panel body 1 not only open on the back but also extend to the front of the panel, meaning the holes penetrate the entire foamed ceramic panel body 1 along its thickness. This through-hole configuration allows the UHPC grout to extend into the UHPC decorative layer 4 area during the injection process, enabling the grout to simultaneously form part of the UHPC anchor post 2 and the UHPC decorative layer 4, or to come into material contact with the UHPC decorative layer 4. Through this structural design, the UHPC anchor post 2 and the front UHPC decorative layer 4 form a connection before the material has cured, and gradually solidify into a continuous body during the molding process, eliminating the boundary between them and thus enhancing the overall structural integrity.

[0037] The term "material continuum" here refers to the absence of physical breaks, gaps, or interface separation between the UHPC anchor post 2 and the UHPC decorative layer 4. Instead, they exist within the same integrated material flow and curing environment during the pouring or molding process, enabling a continuous transition between the two materials at the microstructural level. This structural relationship not only enhances the bond strength between the front decorative layer and the main body of the board but also allows the force generated by the pull-out and shear forces of the UHPC anchor post 2 during the connection of the connecting component 3 to be partially dispersed and transmitted through the UHPC decorative layer 4, thereby further improving the stability and crack resistance of the anchoring system.

[0038] Optionally, the material of the UHPC decorative layer 4 is cured onto the front surface of the foamed ceramic panel body 1. Of course, in other embodiments, the UHPC decorative layer 4 and the foamed ceramic panel body 1 can also be separately configured.

[0039] In one alternative embodiment, the edge of the UHPC decorative layer 4 is flush with the edge of the foamed ceramic plate body 1.

[0040] That is, the UHPC decorative layer 4 and the foamed ceramic panel body 1 are geometrically aligned and flush with each other along the top, bottom, left, and right edges of the panel. Here, "aligned" means that the two have no misalignment, overlap, or protrusion on their edge contours, forming a unified and complete rectangular or irregularly shaped panel contour.

[0041] On the one hand, the edge of the UHPC decorative layer 4 is aligned with the edge of the foamed ceramic panel body 1, which facilitates the control of subsequent joints between curtain wall panels. This results in a clear, linear, and continuous decorative seam effect between adjacent panels, avoiding visual unevenness or installation interference caused by misalignment of the decorative layers. On the other hand, the flush edges effectively improve the safety and stacking stability of the panels during transportation and on-site handling, preventing damage or stress concentration caused by local protrusions. Furthermore, the flush edges provide a clear geometric reference for the positioning of components in the prefabricated installation system, facilitating the alignment and installation of hangers, keels, or column systems, and improving construction accuracy and efficiency.

[0042] In one optional embodiment, a UHPC reinforcing layer 5 is provided on the back side of the foamed ceramic plate body 1, and the UHPC reinforcing layer 5 has through holes reserved at the positions corresponding to the holes so that the connecting member 3 can pass through.

[0043] The UHPC reinforcing layer 5 is cured onto the back side of the foamed ceramic plate body 1 to enhance the connection stability between the two.

[0044] The UHPC reinforcement layer 5 is made of high-strength UHPC material, and its composition is similar to that of the UHPC decorative layer 4. The steel fiber content and particle size distribution can also be adjusted according to specific needs to make it more suitable for bearing concentrated loads and shear and pull-out stresses transmitted by connectors. The thickness of the UHPC reinforcement layer 5 can be set according to the connection method and stress requirements, generally in the range of 5mm to 20mm.

[0045] To ensure the smooth passage of the connecting component 3 through the UHPC reinforcement layer 5 and its anchoring within the board, a through hole is pre-drilled at the corresponding location of the hole in the foamed ceramic board body 1. The through hole size should be slightly larger than the diameter of the connecting component 3 so that the connecting component 3 can be accurately inserted into the hole and positioned in the UHPC anchor post 2 during construction. This through hole can be set during the UHPC reinforcement layer 5 molding stage by pre-embedding a cylinder or by subsequent machining, ensuring that its axis is consistent with the hole to guarantee installation accuracy.

[0046] The UHPC reinforcement layer 5 improves the overall bending and impact resistance of the product, extending its service life in the curtain wall system. Simultaneously, the UHPC reinforcement layer 5 and the UHPC anchor column 2 form a material continuity during the molding process. Since the UHPC reinforcement layer 5 and the UHPC anchor column 2 are typically made of the same or compatible materials, they can form a mechanically continuous interface during molding, which is beneficial to improving the overall load-bearing capacity of the connection area.

[0047] Optionally, the edge of the UHPC reinforcing layer 5 is flush with the edge of the foamed ceramic board body 1. That is, in the vertical and horizontal directions, there is no obvious misalignment or protrusion between the two within the planar projection range, forming a complete and consistent boundary outline. The term "flush with edges" means that the UHPC reinforcing layer 5 does not extend beyond the size range of the foamed ceramic board body 1, nor is it partially recessed or left with edges, thereby achieving visual and structural uniformity between the two.

[0048] This flush design has significant engineering implications. On the one hand, it ensures the standardization of panel dimensions during transportation, stacking, handling, and construction, avoiding problems such as bumps, breakage, or assembly interference caused by local protrusions or shrinkage. On the other hand, the flush edge design also facilitates the connection between the panels and the keel or hanging system, improving the precision of modular installation and simplifying the sealing and closure of installation nodes.

[0049] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A foamed ceramic plate connection structure, characterized in that, include: Foamed ceramic plate body (1), the foamed ceramic plate body (1) is provided with holes, the holes are formed with openings on the back side of the foamed ceramic plate body (1), and the holes are filled with UHPC slurry to form UHPC anchor bolts (2). A connecting member (3) is provided, at least a portion of which is pre-embedded in the UHPC anchor post (2) through the opening. The connecting member (3) is used to connect the foamed ceramic plate body (1) to the support structure.

2. The foamed ceramic plate connection structure according to claim 1, characterized in that, The front side of the foamed ceramic plate body (1) is provided with a UHPC decorative layer (4).

3. The foamed ceramic plate connection structure according to claim 2, characterized in that, The holes penetrate the front of the foamed ceramic plate body (1), and the UHPC anchor post (2) and the UHPC decorative layer (4) form a material continuity during the molding process.

4. The foamed ceramic plate connection structure according to claim 2, characterized in that, The material of the UHPC decorative layer (4) is cured on the front side of the foamed ceramic plate body (1).

5. The foamed ceramic plate connection structure according to claim 2, characterized in that, The edge of the UHPC decorative layer (4) is flush with the edge of the foamed ceramic plate body (1).

6. The foamed ceramic plate connection structure according to claim 1, characterized in that, The back of the foamed ceramic plate body (1) is provided with a UHPC reinforcement layer (5), and the UHPC reinforcement layer (5) has a through hole reserved at the position corresponding to the hole so that the connecting member (3) can pass through.

7. The foamed ceramic plate connection structure according to claim 6, characterized in that, The UHPC reinforcement layer (5) and the UHPC anchor post (2) form a material continuum during the molding process.

8. The foamed ceramic plate connection structure according to claim 6, characterized in that, The material of the UHPC reinforcement layer (5) is cured on the back side of the foamed ceramic plate body (1).

9. The foamed ceramic plate connection structure according to claim 6, characterized in that, The edge of the UHPC reinforcement layer (5) is flush with the edge of the foamed ceramic plate body (1).

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