Fabricated building outer wall joint waterproof structure
By using foam concrete layer and concave-convex matching structure at the joints of the exterior walls of prefabricated buildings, combined with the design of sealing materials, the problems of complex structure, poor waterproofing and thermal insulation effects in the existing technology are solved, and the structure simplification and construction efficiency are improved.
Patent Information
- Application Number
- CN202421010911.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-05-10
AI Technical Summary
The existing prefabricated building exterior wall joint waterproof structure has complexity and inefficiency in taking into account structural simplification, waterproofing effect and thermal insulation effect.
Prefabricated exterior wall panels with outer layer, intermediate layer and inner layer are used, wherein the intermediate layer is a foam concrete layer. By setting up a concave and convex mating structure on the edges of the prefabricated exterior wall panels and filling sealing materials at the joints, a roundabout waterproof path and enhanced thermal insulation effect are formed.
It has achieved simplification of the structure, improved waterproofing and thermal insulation effects, enhanced the overall stability of the exterior wall, simplified the construction process, and improved construction efficiency.
Smart Images
Figure CN222685748U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a waterproof structure for joints of assembled building exterior walls. Background Art
[0002] The exterior wall of an assembled building is assembled in blocks by prefabricated exterior wall panels (referred to as prefabricated exterior wall panels). Therefore, waterproofing construction at the joints is one of the important processes in the construction of the exterior wall of an assembled building, which affects the practical function and service life of the building. A commonly used joint waterproofing structure of an assembled building exterior wall adopts multiple lines of defense, among which sealing waterproofing is the first line of defense, and a waterproof layer is formed by filling various sealing materials in the joints; structural waterproofing is the second line of defense, and the force of water movement is reduced by designing the joints to a suitable size and structure; in addition, the cast-in-place concrete layer of the shear wall structure is the third line of defense. The prefabricated exterior wall panels and the cast-in-place concrete layer of the above-mentioned assembled building exterior wall joint waterproofing structure are constructed separately, which affects the construction efficiency of the assembled building exterior wall. In addition, the existing assembled building exterior wall joint waterproofing structure and the insulation structure of the assembled building exterior wall are functionally independent of each other, which also leads to the structure of the assembled building exterior wall with insulation function being more complicated. Utility Model Content
[0003] The utility model aims to provide a prefabricated building exterior wall joint waterproof structure to solve the technical problem of balancing structural simplification, waterproofing effect and thermal insulation effect.
[0004] To this end, a prefabricated building exterior wall joint waterproof structure is provided, wherein the prefabricated building exterior wall is formed by splicing prefabricated exterior wall panels, wherein the prefabricated exterior wall panels have an outer layer, an intermediate layer and an inner layer connected as one body, wherein the intermediate layer is a foam concrete layer; the prefabricated building exterior wall joint waterproof structure comprises a splicing structure arranged at the edge of the prefabricated exterior wall panels, wherein the splicing structure comprises an outer layer splicing surface formed at the edge of the outer layer, an intermediate layer splicing surface formed at the edge of the intermediate layer, and an inner layer splicing surface formed at the edge of the inner layer, wherein the intermediate layer splicing surface forms a concave portion or a convex portion relative to the outer layer splicing surface and the inner layer splicing surface on both sides of the intermediate layer splicing surface, wherein the concave portion or the convex portion is used to constitute a concave-convex matching structure for splicing adjacent prefabricated exterior wall panels structure; after the adjacent prefabricated exterior wall panels are spliced, the outer layer splicing surface of one of the adjacent prefabricated exterior wall panels cooperates with the outer layer splicing surface corresponding to the other prefabricated exterior wall panel to form an outer layer seam, the middle layer splicing surface of one of the adjacent prefabricated exterior wall panels cooperates with the middle layer splicing surface corresponding to the other prefabricated exterior wall panel to form an middle layer seam, the inner layer splicing surface of one of the adjacent prefabricated exterior wall panels cooperates with the inner layer splicing surface corresponding to the other prefabricated exterior wall panel to form an inner layer seam, and the outer layer seam and the inner layer seam are cut off by the convex part in the concave-convex matching structure; in addition, it also includes sealing materials respectively arranged in the outer layer seam and the inner layer seam.
[0005] The above-mentioned assembled building exterior wall joint waterproof structure is based on a new type of prefabricated exterior wall panel. The prefabricated exterior wall panel has an outer layer, an intermediate layer and an inner layer connected as one body, and the intermediate layer is a foam concrete layer, which is a lightweight porous material with good thermal insulation performance and certain waterproof performance.
[0006] The prefabricated building exterior wall joint waterproof structure formed by the prefabricated exterior wall panels has the following characteristics in terms of waterproof performance: firstly, the outer seams and the inner seams are cut off by the concave-convex matching structure of the middle layer, forming a circuitous waterproof path, which increases the difficulty of water and water vapor penetration; secondly, the outer seams and the inner seams are filled with sealing materials, further preventing the invasion of water and water vapor; the middle layer adopts foam concrete, which has good waterproof performance itself and can be used as a waterproof barrier, while also having thermal insulation.
[0007] In terms of thermal insulation performance, the middle layer uses foam concrete, which is a lightweight porous material with low thermal conductivity and good thermal insulation performance. The concave-convex matching structure increases the path length at the joint and reduces the conduction of heat through the joint.
[0008] In terms of structural stability, the concave-convex matching structure improves the bite force between adjacent prefabricated exterior wall panels, increasing the firmness and reliability of the connection. The foam concrete layer plays the role of connecting the outer layer and the inner layer, making the prefabricated exterior wall panels a whole and improving the overall stability of the exterior wall.
[0009] In terms of construction convenience, prefabricated exterior wall panels are produced in factories, which ensures better quality and high production efficiency. The design of splicing structure and sealing materials simplifies the on-site installation process and increases the construction speed.
[0010] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. Additional aspects and advantages of the present invention will be partially given in the following description, partially become apparent from the following description, or be understood through practice. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The drawings constituting a part of this specification are used to assist the understanding of the present invention. The contents provided in the drawings and the related descriptions in this specification can be used to explain the present invention, but do not constitute an improper limitation on the present invention.
[0012] Figure 1 It is a structural schematic diagram of the assembled building exterior wall joint waterproof structure between vertically adjacent prefabricated exterior wall panels according to an embodiment of the utility model.
[0013] Figure 2 It is a structural schematic diagram of the assembled building exterior wall joint waterproof structure between laterally adjacent prefabricated exterior wall panels according to an embodiment of the utility model. DETAILED DESCRIPTION
[0014] The utility model is described clearly and completely below in conjunction with the accompanying drawings. A person skilled in the art will be able to implement the utility model based on these descriptions. Before describing the utility model in conjunction with the accompanying drawings, it should be particularly noted that:
[0015] The technical solutions and technical features provided in each section, including the following description, can be combined with each other without conflict. In addition, where possible, these technical solutions, technical features and related combinations can be assigned specific technical themes and protected by relevant patents.
[0016] The embodiments of the utility model involved in the following description are usually only a part of the embodiments rather than all the embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of patent protection.
[0017] Regarding the terms and units in this specification: The terms "include", "comprises", "have" and any variations thereof in this specification and the corresponding claims and related parts are intended to cover non-exclusive inclusions. In addition, other relevant terms and units can be reasonably interpreted based on the relevant content provided in this specification.
[0018] Figure 1 It is a structural schematic diagram of the assembled building exterior wall joint waterproof structure between vertically adjacent prefabricated exterior wall panels according to an embodiment of the utility model. Figure 2 This is a schematic diagram of the structure of the assembled building exterior wall joint waterproof structure between the transversely adjacent prefabricated exterior wall panels according to the embodiment of the utility model. Figure 1-Figure 2 As shown, a prefabricated building exterior wall joint waterproof structure, the prefabricated building exterior wall is formed by splicing prefabricated exterior wall panels, the prefabricated exterior wall panels have an outer layer 11, an intermediate layer 12 and an inner layer 13 connected as one body, the intermediate layer 12 is a foam concrete layer; it includes a splicing structure arranged at the edge of the prefabricated exterior wall panel, the splicing structure includes an outer layer splicing surface formed at the edge of the outer layer 11, an intermediate layer splicing surface formed at the edge of the intermediate layer 12 and an inner layer splicing surface formed at the edge of the inner layer 13, the intermediate layer splicing surface forms a concave portion 31 or a convex portion 32 relative to the outer layer splicing surface and the inner layer splicing surface on both sides of the intermediate layer splicing surface, and the concave portion or the convex portion is used to constitute a concave-convex matching structure for splicing adjacent prefabricated exterior wall panels; After the adjacent prefabricated exterior wall panels are spliced, the outer layer splicing surface of one of the adjacent prefabricated exterior wall panels cooperates with the outer layer splicing surface corresponding to the other prefabricated exterior wall panel to form an outer layer seam 21, the middle layer splicing surface of one of the adjacent prefabricated exterior wall panels cooperates with the middle layer splicing surface corresponding to the other prefabricated exterior wall panel to form an middle layer seam 22, and the inner layer splicing surface of one of the adjacent prefabricated exterior wall panels cooperates with the inner layer splicing surface corresponding to the other prefabricated exterior wall panel to form an inner layer seam 23, and the outer layer seam 21 and the inner layer seam 23 are cut off by the convex portion 32 in the concave-convex matching structure; in addition, it also includes sealing materials 4 respectively arranged in the outer layer seam 21 and the inner layer seam 23.
[0019] The above-mentioned assembled building exterior wall joint waterproof structure is based on a new type of prefabricated exterior wall panel. The prefabricated exterior wall panel has an outer layer 11, an intermediate layer 12 and an inner layer 13 connected as one body, wherein the intermediate layer 12 is a foam concrete layer, which is a light porous material and has good thermal insulation performance and certain waterproof performance.
[0020] The prefabricated building exterior wall joint waterproof structure formed by the prefabricated exterior wall panel has the following characteristics in terms of waterproof performance: firstly, the outer seam 21 and the inner seam 23 are interrupted by the concave-convex matching structure of the middle layer, forming a circuitous waterproof path, which increases the difficulty of water and water vapor penetration; secondly, the outer seam and the inner seam are filled with sealing material 4, which further prevents the invasion of water and water vapor; the middle layer 12 adopts foam concrete, which has good waterproof performance itself and can be used as a waterproof barrier, while also having thermal insulation.
[0021] In terms of thermal insulation performance, the middle layer 12 is made of foam concrete, which is a lightweight porous material with low thermal conductivity and good thermal insulation performance. The concave-convex matching structure increases the path length at the joint and reduces the conduction of heat through the joint.
[0022] In terms of structural stability, the concave-convex matching structure improves the bite force between adjacent prefabricated exterior wall panels, increasing the firmness and reliability of the connection. The foam concrete layer plays the role of connecting the outer layer and the inner layer, making the prefabricated exterior wall panels a whole and improving the overall stability of the exterior wall.
[0023] In terms of construction convenience, prefabricated exterior wall panels are produced in factories, which ensures better quality and high production efficiency. The design of splicing structure and sealing materials simplifies the on-site installation process and increases the construction speed.
[0024] Figure 1 This is a schematic diagram of the structure of the assembled building exterior wall joint waterproof structure between vertically adjacent prefabricated exterior wall panels according to the embodiment of the utility model. Figure 1 As shown, when the adjacent prefabricated exterior wall panels are vertically adjacent prefabricated exterior wall panels, the outer layer joint 21 has a lower horizontal joint 211, an upper horizontal joint 212, and an inclined joint 213 connected between the lower horizontal joint and the upper horizontal joint. At this time, the middle layer joint 22 has a downward slope, which can be 3°-10°, so as to guide the water in the middle layer joint 22 into the vertical joint of the adjacent horizontal prefabricated exterior wall panels.
[0025] Figure 2 This is a schematic diagram of the structure of the assembled building exterior wall joint waterproof structure between the transversely adjacent prefabricated exterior wall panels according to the embodiment of the utility model. Figure 2 As shown, when the adjacent prefabricated exterior wall panels are horizontally adjacent prefabricated exterior wall panels, the outer layer seam 21 and the inner layer seam 23 are both vertical seams.
[0026] like Figure 1-Figure 2 As shown, optionally, the width of the middle layer seam 22 is smaller than the width of the outer layer seam 21 and the width of the inner layer seam 23. In this way, the waterproof and heat preservation effects can be improved.
[0027] In the above-mentioned prefabricated exterior wall panel, the outer layer 11 and the inner layer 13 can both be prefabricated concrete layers. In this case, the prefabricated exterior wall panel can be manufactured by layered casting using a mold.
[0028] In the above-mentioned prefabricated building exterior wall joint waterproof structure, the sealing materials may include sealant and sealant backing material.
[0029] The above is a description of the relevant contents of the utility model. A person skilled in the art will be able to implement the utility model based on these descriptions. Based on the above contents of this specification, all other embodiments obtained by a person skilled in the art without making any creative work shall fall within the scope of patent protection.
Claims
1. Prefabricated building exterior wall joint waterproof structure, characterized by: The outer wall of the assembled building is formed by splicing prefabricated outer wall panels, and the prefabricated outer wall panels have an outer layer, a middle layer and an inner layer connected as one body, and the middle layer is a foam concrete layer; It includes a splicing structure arranged at the edge of the prefabricated exterior wall panel, the splicing structure includes an outer layer splicing surface formed at the edge of the outer layer, an intermediate layer splicing surface formed at the edge of the intermediate layer, and an inner layer splicing surface formed at the edge of the inner layer, the intermediate layer splicing surface forms a concave portion or a convex portion relative to the outer layer splicing surface and the inner layer splicing surface on both sides of the intermediate layer splicing surface, and the concave portion or the convex portion is used to form a concave-convex matching structure for splicing adjacent prefabricated exterior wall panels; After the adjacent prefabricated exterior wall panels are spliced, the outer layer splicing surface of one of the adjacent prefabricated exterior wall panels cooperates with the outer layer splicing surface corresponding to the other prefabricated exterior wall panel to form an outer layer seam, the middle layer splicing surface of one of the adjacent prefabricated exterior wall panels cooperates with the middle layer splicing surface corresponding to the other prefabricated exterior wall panel to form an middle layer seam, the inner layer splicing surface of one of the adjacent prefabricated exterior wall panels cooperates with the inner layer splicing surface corresponding to the other prefabricated exterior wall panel to form an inner layer seam, and the outer layer seam and the inner layer seam are cut off by the convex portion of the concave-convex matching structure; In addition, it also includes sealing materials respectively arranged in the outer layer seam and the inner layer seam.
2. The assembled building exterior wall joint waterproof structure according to claim 1, characterized in that: The width of the middle layer seam is smaller than the width of the outer layer seam and the width of the inner layer seam.
3. The assembled building exterior wall joint waterproof structure according to claim 1, characterized in that: When the adjacent prefabricated exterior wall panels are vertically adjacent prefabricated exterior wall panels, the outer layer joint comprises a lower horizontal seam, an upper horizontal seam and an inclined seam connected between the lower horizontal seam and the upper horizontal seam.
4. The assembled building exterior wall joint waterproof structure according to claim 3, characterized in that: The middle layer seam has a downwardly sloping slope.
5. The assembled building exterior wall joint waterproof structure according to claim 4, characterized in that: The slope is 3°-10°.
6. The assembled building exterior wall joint waterproof structure according to claim 1, characterized in that: The outer layer and the inner layer are both precast concrete layers.
7. The assembled building exterior wall joint waterproof structure according to claim 1, characterized in that: The sealing materials all include sealant and sealant backing material.