A prefabricated explosion-proof composite exterior wall that combines decorative and waterproof functions

Abstract

This utility model relates to the field of explosion-proof composite exterior wall technology, specifically to a prefabricated explosion-proof composite exterior wall with both decorative and waterproof functions. It includes a structural frame, fiber-reinforced cement composite steel plates, color steel decorative panels, and rock wool. The structural frame is composed of multiple cold-formed thin-walled C-shaped steel beams and horizontal keels. The fiber-reinforced cement composite steel plates are located on both sides of the structural frame and connected to it via self-tapping screws. Rock wool is filled between the fiber-reinforced cement composite steel plates on both sides. This utility model adopts a composite structure of "structural frame + fiber-reinforced cement composite steel plate + rock wool + color steel decorative panel," integrating explosion-proof, decorative, and waterproof functions. The staggered arrangement and interlocking structure of the fiber-reinforced cement composite steel plates and color steel decorative panels, along with the silicone weather-resistant sealant treatment at the joints, form a multi-layer waterproof system, avoiding the need for additional waterproofing layers and reducing costs and construction time.

Description

Technical Field

[0001] This utility model relates to the field of explosion-proof composite exterior wall technology, specifically to a prefabricated explosion-proof composite exterior wall that combines decorative and waterproof functions. Background Technology

[0002] In certain specialized building sectors, such as production facilities in the petroleum, chemical, nuclear power, and pharmaceutical industries, as well as Class A warehouses and workshops, the risk of explosion is high due to the presence of flammable and explosive materials and the fact that production processes often occur under complex conditions such as high pressure and high temperature. Once an explosion occurs, it will not only cause devastating damage to the building structure and result in severe property loss, but it will also directly threaten the lives of personnel inside and may even lead to secondary disasters due to equipment malfunction, further expanding the scope of the hazard. Therefore, these critical components must employ scientifically sound and blast-resistant designs.

[0003] Traditional blast-resistant walls often rely on a single material, such as reinforced concrete or metal sheets. While they possess a certain degree of blast resistance, they have significant limitations. On the one hand, a single material cannot simultaneously meet the multiple functional requirements of decoration, blast resistance, and waterproofing. Buildings often require additional decorative and waterproof layers, which not only increases construction costs and time but also leads to problems such as weak interlayer bonding and easy cracking and water seepage. On the other hand, traditional blast-resistant walls have limited energy absorption efficiency when subjected to explosive impacts, making it difficult to effectively buffer the shock waves generated by the explosion. This can easily lead to structural damage to the wall and threaten the safety of people and property. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing a prefabricated explosion-proof composite exterior wall that combines decorative and waterproof functions, thus solving the problems mentioned in the background section.

[0005] To achieve the above technical objectives, this utility model proposes the following technical solution: a prefabricated explosion-proof composite exterior wall with both decorative and waterproof functions, comprising a structural frame, fiber-reinforced cement composite steel plates, color steel decorative panels, and rock wool; the structural frame is composed of multiple cold-formed thin-walled C-shaped steels and horizontal keels spliced ​​together, the fiber-reinforced cement composite steel plates are arranged on both sides of the structural frame and connected to the structural frame by self-tapping screws, rock wool is filled between the fiber-reinforced cement composite steel plates on both sides, and the color steel decorative panels are bonded to the outer surface of the fiber-reinforced cement composite steel plates by adhesive.

[0006] Furthermore, the lower end of the fiber-reinforced cement composite steel plate is integrally formed with an outer flange and a middle protrusion, and the upper end of the fiber-reinforced cement composite steel plate is respectively provided with a recessed stop and a groove that are adapted to the outer flange and the middle protrusion. A positioning groove is provided on one side wall of the recessed stop.

[0007] Furthermore, an elastic snap-fit ​​component with a V-shaped cross-section is fixedly connected to the inner side of the outer flange, and one end of the elastic snap-fit ​​component enters the positioning groove to prevent the fiber-reinforced cement composite steel plate from moving upward.

[0008] Furthermore, the fiber-reinforced cement composite steel plate and the corresponding color steel decorative panel are arranged in a staggered pattern.

[0009] Furthermore, the upper end of the color steel decorative panel is integrally formed with an interlocking protrusion, and the lower end of the color steel decorative panel is provided with an interlocking groove that matches the interlocking protrusion.

[0010] Furthermore, the thermal conductivity of the rock wool is no greater than 0.04 W / (m·K), and a moisture-proof layer is provided at the contact points between the rock wool and the fiber-reinforced cement composite steel plate and the structural frame.

[0011] Compared with existing technologies, the beneficial effects of this utility model are as follows: This utility model adopts a composite structure of "structural skeleton + fiber-reinforced cement composite steel plate + rock wool + color steel decorative panel", integrating explosion-proof, decorative and waterproof functions. The color steel decorative panel is directly bonded to the outer surface of the fiber-reinforced cement composite steel plate with adhesive, without the need for an additional decorative layer; the staggered arrangement and interlocking structure of the fiber-reinforced cement composite steel plate and the color steel decorative panel, as well as the treatment of the board seam with silicone weather-resistant sealant, form a multi-layer waterproof system, avoiding the construction of additional waterproof layers, reducing costs and construction time; the lower end of the fiber-reinforced cement composite steel plate is integrally formed with an outer flange and a central protrusion, which are adapted to the concave stop and groove of the adjacent plate, and with the help of elastic snap fasteners, the sealing of the connection is enhanced, reducing the path of water penetration. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a structural schematic diagram of the fiber-reinforced cement composite steel plate of this utility model;

[0014] Figure 3 This is a structural schematic diagram of the color steel decorative panel of this utility model;

[0015] Figure 4 This is a utility model Figure 1 Enlarged view of the structure at point A in the middle.

[0016] In the diagram, 1. Structural frame; 2. Fiber-reinforced cement composite steel plate; 3. Color steel decorative panel; 4. Rock wool; 5. Self-tapping screw; 6. C-shaped steel; 7. Horizontal keel; 8. Outer flange; 9. Central protrusion; 10. Recessed stop; 11. Groove; 12. Positioning groove; 13. Elastic snap fastener; 14. Embedding protrusion; 15. Embedding groove. Detailed Implementation

[0017] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0018] This utility model provides a prefabricated explosion-proof composite exterior wall with both decorative and waterproof functions, including a structural frame 1, fiber-reinforced cement composite steel plates 2, color steel decorative panels 3, and rock wool 4; the structural frame 1 is a frame composed of multiple C-shaped steels 6 and horizontal keels 7 spliced ​​together to provide support for the wall; the fiber-reinforced cement composite steel plates 2 are set on both sides of the structural frame 1 and connected to the structural frame 1 by self-tapping screws 5; rock wool 4 is filled between the fiber-reinforced cement composite steel plates 2 on both sides; and the color steel decorative panels 3 are bonded to the outer surface of the fiber-reinforced cement composite steel plates 2 by adhesive.

[0019] like Figure 1 As shown, rock wool 4 possesses fireproof, heat-insulating, and sound-absorbing properties. Rock wool 4 acts as a buffer when subjected to impact. Combined with the strength of fiber-reinforced cement composite steel plate 2 and color steel decorative panel 3, the exterior wall has a certain degree of explosion resistance, effectively resisting a certain degree of explosive impact and ensuring the safety of the building and personnel. The fiber-reinforced cement composite steel plate 2 is selected from products that meet national standards, with a density of not less than 2.0 g / cm³, a compressive strength of not less than 20 MPa, and a flexural strength of not less than 8 MPa. The fiber content of the fiber-reinforced cement plate should be moderate to ensure that the plate has good toughness and strength, and is not easily broken when subjected to external impact. The color steel decorative panel 3 uses hot-dip galvanized steel plate as the base material, with a zinc coating thickness of not less than 275 g / m² to ensure the corrosion resistance of the panel. The surface coating uses a fluorocarbon coating with a thickness of not less than 25μm, exhibiting excellent weather resistance, stain resistance, and color retention. The thickness of the color steel decorative panel 3 is generally 0.5-0.8mm, ensuring both decorative effect and a certain degree of impact resistance. During the composite process, the uniformity and amount of adhesive application are strictly controlled to ensure the bonding strength between the color steel decorative panel 3 and the fiber-reinforced cement composite steel plate 2, preventing problems such as delamination and detachment. The color steel decorative panel 3 offers a variety of colors and textures, such as imitation stone texture and wood grain, to meet the decorative needs of different architectural styles. Regarding waterproofing, silicone weather-resistant sealant is used to seal the joints between the fiber-reinforced cement composite steel plates and the color steel decorative panel 3. High-quality silicone weather-resistant sealant is selected, which has good weather resistance, displacement resistance, and adhesion.

[0020] The lower end of the fiber-reinforced cement composite steel plate 2 is integrally formed with an outer flange 8 and a middle protrusion 9. The upper end of the fiber-reinforced cement composite steel plate 2 is respectively provided with a concave stop 10 and a groove 11 that are adapted to the outer flange 8 and the middle protrusion 9. A positioning groove 12 is provided on one side wall of the concave stop 10.

[0021] like Figure 2 and Figure 4 As shown, when splicing multiple fiber-reinforced cement composite steel plates 2 together, the lower fiber-reinforced cement composite steel plate 2 is first fixed to the C-shaped steel 6 with self-tapping screws 5. The self-tapping screws 5 are located in the positioning groove 12. Then, a second fiber-reinforced cement composite steel plate 2 is installed on top of the fiber-reinforced cement composite steel plate 2. The outer flange 8 and the middle protrusion 9 at the bottom of the second fiber-reinforced cement composite steel plate 2 are respectively placed in the concave stop 10 and the groove 11, which limits the second fiber-reinforced cement composite steel plate 2 and increases the sealing performance at the connection, reducing the water penetration path. At the same time, under the action of the outer flange 8, the self-tapping screws 5 are concealed, avoiding the self-tapping screws 5 being exposed when the color steel decorative panel 3 is laminated on its outer surface, which would hinder the overall flatness of the color steel decorative panel 3 and indirectly improve the flatness of the color steel decorative panel 3.

[0022] The inner side of the outer flange 8 is fixed with an elastic snap-fit ​​member 13 with a V-shaped cross section. One end of the elastic snap-fit ​​member 13 enters the positioning groove 12 to prevent the fiber-reinforced cement composite steel plate 2 from moving upward.

[0023] like Figure 4 As shown, one end of the elastic snap-fit ​​13 is fixedly installed on the inner side of the outer flange 8, and the other end enters the positioning groove 12 as the second fiber-reinforced cement composite steel plate 2 is installed. This prevents the second fiber-reinforced cement composite steel plate 2 from moving upwards during installation, which would cause the installation position of the second fiber-reinforced cement composite steel plate 2 to change and affect the sealing performance of the joint between the two adjacent fiber-reinforced cement composite steel plates 2.

[0024] The fiber-reinforced cement composite steel plate 2 and the corresponding color steel decorative panel 3 are arranged in a staggered manner.

[0025] like Figure 1 As shown, the joints are staggered to avoid vertical through joints and enhance the overall sealing performance of the wall.

[0026] The upper end of the color steel decorative panel 3 is integrally formed with an interlocking protrusion 14, and the lower end of the color steel decorative panel 3 is provided with an interlocking groove 15 that matches the interlocking protrusion 14.

[0027] like Figure 3 As shown, the interlocking protrusion 14 and the interlocking groove 15 work together to seal the joints of the board with silicone weather-resistant sealant, forming a multi-layer waterproof barrier and improving waterproof performance.

[0028] The thermal conductivity of the rock wool 4 is no greater than 0.04 W / m·K, and a moisture-proof layer is provided at the contact points between the rock wool 4 and the fiber-reinforced cement composite steel plate 2 and the structural frame 1.

[0029] like Figure 1As shown, the combustion performance of rock wool 4 meets the Class A non-combustible standard. The slag content of rock wool 4 does not exceed 10%, ensuring its stable quality and reliable performance. The design of the moisture-proof layer can prevent moisture from penetrating rock wool 4, ensuring its stable performance and extending the service life of the wall.

[0030] Operating principle: 1. According to the design drawings, mark the installation position lines of structural frame 1 on the main building structure to ensure accurate positioning. Use chemical anchors to fix structural frame 1 to the main structure, with an anchor spacing of no more than 600mm. During installation, use a level and straightedge to correct the C-shaped steel 6 and horizontal joists 7 to ensure that the verticality and flatness errors are within the allowable range.

[0031] Installation of fiber-reinforced cement composite steel plate 2: Install the fiber-reinforced cement composite steel plate 2 onto the C-shaped steel 6 in sequence according to the pre-arranged plan. Use self-tapping screws 5 to connect the plate to the C-shaped steel. Specifically, after fixing the first fiber-reinforced cement composite steel plate 2 onto the C-shaped steel 6, install the second fiber-reinforced cement composite steel plate 2 on top of the first fiber-reinforced cement composite steel plate 2. When installing the second fiber-reinforced cement composite steel plate 2, place the outer flange 8 and the middle protrusion 9 at the bottom of the second fiber-reinforced cement composite steel plate 2 into the concave stop 10 and groove 11 at the top of the first fiber-reinforced cement composite steel plate 2, respectively. The other end of the elastic snap fastener 13 is opened under the elastic action and enters the positioning groove 12. Then, fix the upper part of the second fiber-reinforced cement composite steel plate 2 onto the C-shaped steel 6 with self-tapping screws 5.

[0032] Rock wool filling: After the fiber-reinforced cement composite steel plate 2 is installed, rock wool 4 is filled into the C-shaped steel 6 frame according to the design requirements. The density of rock wool 4 is generally 100-150kg / m³, and the thickness is determined according to the explosion-proof requirements, usually 150mm. When filling, pay attention to the density of rock wool 4 to ensure full filling.

[0033] Installation of color steel decorative panels: According to the layout order, the color steel decorative panels 3 are firmly bonded to the outer surface of the fiber reinforced cement composite steel plate 2 using a special weather-resistant adhesive.

[0034] Waterproofing treatment of panel joints: After the color steel decorative panel 3 is installed, clean the panel joints, then paste masking tape on both sides of the joints, controlling the width and shape of the sealant application to ensure full filling and a smooth surface. Then apply silicone weather-resistant sealant as required, ensuring the sealant is even, full, and the surface is smooth. The width of the silicone weather-resistant sealant application is determined according to the width of the panel joint, generally not less than 6mm, and the thickness is not less than 6mm. After the silicone weather-resistant sealant application is completed, promptly remove the masking tape to ensure the panel joints are clean and aesthetically pleasing.

[0035] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A prefabricated explosion-proof composite exterior wall that combines decorative and waterproof functions, characterized in that: It includes a structural frame (1), a fiber-reinforced cement composite steel plate (2), a color steel decorative panel (3), and rock wool (4); the structural frame (1) is spliced ​​together by multiple cold-formed thin-walled C-shaped steel (6) and horizontal keel (7), the fiber-reinforced cement composite steel plate (2) is set on both sides of the structural frame (1) and connected to the structural frame (1) by self-tapping screws (5), and rock wool (4) is filled between the fiber-reinforced cement composite steel plates (2) on both sides. The color steel decorative panel (3) is bonded to the outer surface of the fiber-reinforced cement composite steel plate (2) by adhesive.

2. The assembled anti-explosion composite outer wall with decoration and waterproof functions according to claim 1, characterized in that: The lower end of the fiber-reinforced cement composite steel plate (2) is integrally formed with an outer flange (8) and a middle protrusion (9). The upper end of the fiber-reinforced cement composite steel plate (2) is provided with a concave stop (10) and a groove (11) that are adapted to the outer flange (8) and the middle protrusion (9). A positioning groove (12) is provided on one side wall of the concave stop (10).

3. The assembled anti-explosion composite outer wall with decorative and waterproof functions according to claim 2, characterized in that: The inner side of the outer flange (8) is fixed with an elastic snap-fit ​​member (13) with a V-shaped cross section. One end of the elastic snap-fit ​​member (13) enters the positioning groove (12) to prevent the fiber-reinforced cement composite steel plate (2) from moving upward.

4. The assembled anti-explosion composite outer wall with decorative and waterproof functions according to claim 1, characterized in that: The fiber-reinforced cement composite steel plate (2) and the corresponding color steel decorative panel (3) are arranged in a staggered manner.

5. The assembled anti-explosion composite outer wall with decorative and waterproof functions according to claim 1, characterized in that: The upper end of the color steel decorative panel (3) is integrally formed with an interlocking protrusion (14), and the lower end of the color steel decorative panel (3) is provided with an interlocking groove (15) that matches the interlocking protrusion (14).

6. The assembled anti-explosion composite outer wall with decoration and waterproof functions according to claim 1, characterized in that: The thermal conductivity of the rock wool (4) is not greater than 0.04 W / (m·K), and a moisture-proof layer is provided at the contact parts of the rock wool (4) with the fiber-reinforced cement composite steel plate (2) and the structural frame (1).

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