Fabricated building leak-proof structure and construction method thereof
By setting inclined horizontal joints and drainage channel structures at the joints of prefabricated buildings, the problem of unsatisfactory waterproofing effect at the joints of prefabricated buildings is solved, and more efficient rainwater drainage and waterproof performance is achieved.
Patent Information
- Application Number
- CN202411727269.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-03-04
AI Technical Summary
The waterproofing effect at the joints of prefabricated buildings is not ideal, especially in earthquake-resistant design and deformable joint design, it is difficult to effectively prevent water flow from breaking through the outer waterproof layer.
A prefabricated building leak-proof structure is adopted. By setting vertical and horizontal joints at the joints of the precast concrete outer cover member, the horizontal joints are obliquely downward joints from the inside to the outside, and a concave and convex joint filling layer are provided at the joints, and drainage channels and drainage holes are provided in the vertical joints.
It effectively increases the difficulty of rainwater entering the inner side of the precast concrete outer protective member, quickly discharges the incoming rainwater through the drainage channel, improves the waterproof performance at the joints, and further enhances the waterproofing ability through the shrink-free grouting layer.
Smart Images
Figure CN119553790A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of prefabricated building anti-leakage joint structures, in particular to a prefabricated building anti-leakage joint structure and a construction method thereof. Background Art
[0002] As we all know, prefabricated buildings are assembled on-site by prefabricated components. The assembly joints between components have always been a weak point in waterproofing. Especially for some exterior wall panels that take earthquake-resistant design factors into consideration, the joint design needs to meet the requirements of deformation within a certain range, which increases the difficulty of waterproofing the joints.
[0003] Traditional building exterior walls have good sealing properties, and waterproofing is mainly based on "blocking". Blocking all weak points can effectively achieve the effect of waterproofing.
[0004] For prefabricated buildings, due to the large number of joints, the effect is not ideal. Therefore, during the design process of waterproofing of prefabricated buildings, it should be considered that there may be water flow breaking through the outer waterproof layer. Therefore, it is necessary to combine waterproofing and drainage, and then use reasonable structural design to achieve the waterproof effect. There is no such design structure in the prior art. Summary of the invention
[0005] The object of the present invention is to provide a prefabricated building leak-proof joint structure and a construction method thereof, so as to solve the problem that the waterproof effect at the joints of the existing prefabricated buildings is not ideal.
[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions: A prefabricated building anti-leakage joint structure, the joints between the outer layers of the precast concrete exterior protective components include vertical joints and horizontal joints, the horizontal joints are downwardly inclined joints from the inside to the outside, a concave-convex engaging structure is provided between the upper bottom surface and the lower bottom surface of the horizontal joint, the joints are filled with a rubber joint filling layer, the rubber joint filling layer of the vertical joints includes an inner filling layer, a middle filling layer and an outer filling layer arranged in sequence from the inside to the outside, a drainage channel is left between the inner filling layer, the middle filling layer and the outer filling layer, and the drainage channel is connected to the drainage holes evenly opened in the middle of the outer filling layer.
[0007] First of all, in this scheme, the joints are divided into vertical joints and horizontal joints, and then waterproof schemes are set up respectively. The horizontal joints are inclined downward from the inside to the outside, which can increase the difficulty of rainwater entering the inner side of the precast concrete outer protective components from the horizontal joints, and a concave-convex bite structure is also set between the upper bottom surface and the lower bottom surface of the horizontal joint, so that the concave-convex bite structure can bite together after the overlap, which can further prevent rainwater from entering. Then the vertical joints are not so easy to block the entry of rainwater, so a drainage channel is used, through which the rainwater entering the outer filling layer and the middle filling layer can be drained. Rainwater drains away quickly.
[0008] As a further preferred embodiment of the present invention, the seam exterior is coated with sunscreen paint.
[0009] As a further preferred embodiment of the present invention, the inner layer of the precast concrete exterior protective component is a non-shrinkage grouting material layer.
[0010] Finally, the waterproofing ability is further improved by setting the inner layer of the precast concrete exterior enclosure component as a non-shrinkage grouting layer.
[0011] The construction method of any of the above-mentioned prefabricated building leak-proof structures includes the following steps: A. hoisting precast concrete outer protective components; B. inserting the drainage channel conduit in the middle of the vertical joint; C. applying glue to the inside of the joint, and after applying glue to the outside, using a glue scraper to modify the surface of the glue into a concave surface, so that the glue forms a "funnel" shaped cross-section; D. after the glue is dry, clean up the excess glue on the outer surface to obtain a smooth painted surface; E. apply sunscreen paint, then hang up PVC water curtains and sunshade curtains, and remove the PVC water curtains and sunshade curtains after the sunscreen paint is dried in the shade.
[0012] As a further preferred embodiment of the present invention, the sealant material used for gluing is preferably MS modified silane sealant, and silicone sealant is avoided.
[0013] Silicone sealants can easily contaminate component surfaces.
[0014] As a further preferred embodiment of the present invention, the gluing in step C is performed without exposure to sunlight.
[0015] This is to reduce the climatic influence on rubber vulcanization.
[0016] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects: 1. First of all, in this scheme, the joints are divided into vertical joints and horizontal joints, and then waterproof schemes are set up respectively. The horizontal joints are inclined downward from the inside to the outside, which can increase the difficulty of rainwater entering the inner side of the precast concrete outer protective components from the horizontal joints, and a concave-convex bite structure is also set between the upper bottom surface and the lower bottom surface of the horizontal joint, so that the concave-convex bite structure can bite together after overlapping, which can further prevent rainwater from entering, and then the vertical joints can not easily block the entry of rainwater, so a drainage channel is adopted, through which the rainwater entering the outer filling layer and the middle filling layer can be drained away.
[0017] 2. The waterproofing capability is further improved by setting the inner layer of the precast concrete exterior enclosure as a non-shrinkage grouting layer.
[0018] 3. Reduce the climate factors affecting rubber vulcanization. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a structural schematic diagram of the present invention. DETAILED DESCRIPTION
[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.
[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0023] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features of the embodiments may be combined with each other.
[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0025] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0026] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Specific embodiment 1: Figure 1 A prefabricated building anti-leakage joint structure is shown, the joints between the outer layers of the precast concrete exterior protective components include vertical joints and horizontal joints, the horizontal joints are downwardly inclined joints from the inside to the outside, a concave-convex engaging structure is provided between the upper bottom surface and the lower bottom surface of the horizontal joint, the joints are filled with a rubber joint filling layer, the rubber joint filling layer of the vertical joints includes an inner filling layer, a middle filling layer and an outer filling layer which are arranged in sequence from the inside to the outside, a drainage channel is left between the inner filling layer, the middle filling layer and the outer filling layer, and the drainage channel is connected to the drainage holes evenly opened in the middle of the outer filling layer.
[0028] First, in this scheme, the joints are divided into vertical joints and horizontal joints, and then waterproof schemes are set up respectively. The horizontal joints are inclined downward from the inside to the outside, which can increase the difficulty of rainwater entering the inner side of the precast concrete outer protective component from the horizontal joints, and a concave-convex bite structure is also set between the upper bottom surface and the lower bottom surface of the horizontal joint, so that the concave-convex bite structure can bite together after the overlap, which can further prevent rainwater from entering. Then the vertical joints are not so easy to block the entry of rainwater, so a drainage channel is used, through which the rainwater entering the outer filling layer and the middle filling layer can be quickly drained away; The seam exterior is coated with sunscreen paint; The inner layer of the precast concrete outer protective component is a non-shrinkage grouting material layer; Finally, the waterproofing ability is further improved by setting the inner layer of the precast concrete exterior enclosure as a non-shrinkage grouting material layer; The construction method of the above-mentioned prefabricated building leak-proof joint structure includes the following steps: A. hoisting precast concrete outer protective components; B. inserting the drainage channel conduit in the middle of the vertical joint; C. applying glue inside the joint, and after applying glue outside, using a scraper to modify the surface of the glue into a concave surface, so that the glue forms a "funnel" shaped cross section; D. after the glue is dry, cleaning the excess glue on the outer surface to obtain a smooth painted surface; E. applying sunscreen paint, and then hanging PVC water curtains and sunshade curtains, and removing the PVC water curtains and sunshade curtains after the sunscreen paint is dried in the shade; The sealant material used in the gluing process preferably uses MS modified silane sealant, and avoids using silicone sealant; Silicone sealants can easily contaminate component surfaces; When applying the glue in step C, avoid working in sunlight.
[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An assembled building anti-leakage joint structure, characterized by: The joints between the outer layers of the precast concrete exterior protective components include vertical joints and horizontal joints. The horizontal joints are downwardly inclined joints from the inside to the outside. A concave-convex engaging structure is provided between the upper bottom surface and the lower bottom surface of the horizontal joint. The joints are filled with a rubber joint filling layer. The rubber joint filling layer of the vertical joints includes an inner filling layer, a middle filling layer and an outer filling layer which are arranged in sequence from the inside to the outside. A drainage channel is left between the inner filling layer, the middle filling layer and the outer filling layer, and the drainage channel is connected to the drainage holes evenly opened in the middle of the outer filling layer.
2. The prefabricated building anti-leakage joint structure according to claim 1, characterized in that: The seam exterior is coated with sun-proof paint.
3. The prefabricated building anti-leakage joint structure according to claim 1, characterized in that: The inner layer of the precast concrete outer protective component is a non-shrinkage grouting material layer.
4. A construction method for an anti-leakage joint structure of an assembled building according to any one of claims 1 to 3 comprises the following steps: A. hoisting precast concrete outer protective components; B. inserting a drainage channel conduit in the middle of a vertical joint; C. applying glue inside the joint, and after applying glue on the outside, modifying the surface of the glue into a concave surface with a glue scraper so that the glue forms a "funnel" shaped cross section; D. after the glue is dry, cleaning the excess glue on the outer surface to obtain a smooth painted surface; E. applying sunscreen paint, and then hanging PVC water curtains and sunshade curtains, and removing the PVC water curtains and sunshade curtains after the sunscreen paint is dried in the shade.
5. The prefabricated building anti-leakage joint structure according to claim 4, characterized in that: The sealant material used for the gluing process preferably uses MS modified silane sealant, and avoids using silicone sealant.
6. (Easy to contaminate component surface) The prefabricated building anti-leakage seam structure according to claim 4 is characterized in that: When applying the glue in step C, avoid working in sunlight.