Waterproof structure for post-cast strip in super-long area
By using a multi-layered waterproofing system and a reinforcing rib structure, the problems of insufficient waterproofing and easy cracking in existing post-cast strip waterproofing structures have been solved, achieving higher waterproofing performance and structural strength.
Patent Information
- Application Number
- CN202423058982.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2034-12-12
AI Technical Summary
The existing post-cast strip waterproofing structure of buildings does not have multiple waterproofing layers, making it difficult to resist water penetration from different aspects, and the concrete structure is prone to cracking, affecting its service life.
A multi-layer waterproofing system is adopted, including SBS modified bitumen waterproof membrane, polyurethane waterproof coating and waterstop waterproof layer, combined with reinforcing ribs and reinforcing mesh to form a multi-layer waterproof structure, which enhances the overall strength and waterproof performance of the structure.
It effectively resists moisture penetration, improves the tensile strength and crack resistance of concrete, enhances the stability and durability of the structure, and ensures that the post-cast strip connection block maintains good waterproof performance under the influence of various factors.
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Figure CN223853571U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of building construction, concretely to a waterproof structure of super long area post-pouring belt. BACKGROUND
[0002] The post-pouring belt is a concrete belt left in the corresponding position of the foundation slab, wall or beam according to the design or construction specification requirements in the building construction, and its purpose is to prevent the harmful cracks of the reinforced concrete structure caused by uneven shrinkage or uneven settlement. The role of the post-pouring belt is to release the internal stress of the concrete and reduce the shrinkage deformation during the strength growth process of the concrete structure, so as to avoid the generation of structural cracks. At the same time, the post-pouring belt can also be used to solve the settlement difference problem between the main building and the podium of a high-rise building and the problem of the post-pouring belt for expansion and contraction.
[0003] The post-pouring belt is generally divided into three types, namely, temperature post-pouring belt, settlement post-pouring belt and expansion and contraction post-pouring belt. The temperature post-pouring belt is mainly used to solve the problem of cracking caused by temperature changes of the concrete. The settlement post-pouring belt is mainly used to solve the problem of the settlement difference between the main building and the podium of a high-rise building. The expansion and contraction post-pouring belt is mainly used to solve the problem of construction joints caused by the cracking of the structure due to temperature changes and concrete shrinkage when the building area is too large. If the concrete structure at the post-pouring belt is not effectively protected from water, water will penetrate into the interior of the concrete structure, thereby causing damage and corrosion to the concrete structure.
[0004] The Chinese utility model patent with patent publication number CN221523655U specifically discloses a waterproof structure of building post-pouring belt. By closing the sealing cover plate, the structure can effectively prevent water and debris from entering the post-pouring belt area, avoiding pollution and damage to the post-pouring belt area. When pouring is needed, the hinge and the sealing cover plate can be removed before pouring the post-pouring belt, which can effectively prevent personnel and equipment from entering the post-pouring belt area, thereby ensuring the safety of workers and equipment.
[0005] However, the waterproof structure of building post-pouring belt has some deficiencies. Firstly, it does not design multiple waterproof structures, which is not convenient for selecting different types of waterproof layers and is difficult to resist water penetration from different aspects, which may cause leakage and affect the construction quality. Secondly, it does not design a reinforcing rib structure, which may cause cracking in the concrete, resulting in low tensile strength and low performance of the concrete, and affecting the service life of the overall post-pouring belt. SUMMARY
[0006] The utility model aims to provide a waterproof structure of super long area post-pouring belt, which solves the problems in the prior art.
[0007] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme of:
[0008] The utility model provides a kind of super-long area post-cast strip waterproof structure, including concrete pouring block and reinforcing net, the top of the concrete pouring block is fixedly installed with water baffle, the top of the water baffle is insertedly installed with baffle, the bottom of the baffle is fixedly installed with wood form, the inside of the concrete pouring block is poured with first waterproof layer, the top of the first waterproof layer is poured with second waterproof layer, the top of the second waterproof layer is poured with mortar leveling layer, the top of the mortar leveling layer is poured with post-cast strip connecting block, the top of the post-cast strip connecting block is poured with first top waterproof layer and second top waterproof layer, the inside of the concrete pouring block is fixedly installed with water baffle steel sheet, the first waterproof layer is waterproof roll waterproof layer, the second waterproof layer is waterproof coating waterproof layer, the first top waterproof layer and second top waterproof layer are waterstop waterproof layer.
[0009] Preferably, the inside of the concrete pouring block is fixedly installed with pouring block reinforcing rib one, and the first waterproof layer is SBS modified asphalt waterproof roll.
[0010] Through the above technical scheme, when the first waterproof layer adopts SBS modified asphalt waterproof roll, the pouring of the post-cast strip connecting block can be carried out in cooperation with the pouring block reinforcing rib one inside the concrete pouring block, and the temperature expansion caused by seasonal change can be effectively coped with when the waterproof of the post-cast strip of the building in a region with large temperature change, such as northern region.
[0011] Preferably, the bottom of the wood form is in contact with the top of the pouring block reinforcing rib one, the top of the pouring block reinforcing rib one is fixedly installed with a transverse reinforcing member at the top of the post-cast strip connecting block, and the second waterproof layer is polyurethane waterproof coating.
[0012] Through the above technical scheme, the wood form is in contact with the pouring block reinforcing rib one through the design of the wood form, so that the baffle at the top can be quickly installed, and construction waste and the like can be prevented from falling into the construction site when not pouring, and the coating film formed after the curing of the polyurethane waterproof coating has high elasticity and tensile strength, can adapt to the deformation of the post-cast strip structure under the action of temperature change, concrete shrinkage or foundation settlement and other factors, when the structure deforms, the waterproof layer will not easily break or fall off, and can still maintain good waterproof performance.
[0013] Preferably, the first waterproof layer is a high-molecular waterproof roll, and the second waterproof layer is a polymer cement waterproof coating.
[0014] Through the technical scheme, the polymer waterproof roll has excellent tensile strength, so that it can effectively resist deformation without being torn when bearing external loads such as backfill pressure from above and vehicle driving, and the polymer cement waterproof coating combines the flexibility of organic polymer and the rigidity of cement, so that it can adapt to the slight deformation of the base layer and has certain compressive and bending strength, and when the concrete structure produces slight deformation due to temperature change, shrinkage and other reasons, the polymer cement waterproof coating can stretch or compress without being broken, and the waterproof layer can maintain integrity when being extruded by external force.
[0015] Preferably, the pouring block reinforcing rib one is fixedly installed with the pouring block reinforcing rib two on one side, the pouring block reinforcing rib one is fixedly installed with the pouring block reinforcing rib two on the top, the water retaining steel plate is fixedly installed with the support column on the bottom, the pouring block reinforcing rib two is in an L-shaped structure in section, and the pouring block reinforcing rib two is connected with the pouring block reinforcing rib one at two ends and extends into the post-installed waterproof strip connecting block.
[0016] Through the technical scheme, when the polymer waterproof roll and the polymer cement waterproof coating are used, the pouring block reinforcing rib two can be connected with the pouring block reinforcing rib one, so that the other end is connected into the post-installed waterproof strip connecting block, and the overall strength can be improved.
[0017] Preferably, the pouring block reinforcing rib two is fixedly installed with the fixed column one and the fixed column two on the top, the fixed column one and the fixed column two are provided in the same plurality and are staggered in a cross shape.
[0018] Through the technical scheme, when the baffle is not used, the fixed column one and the fixed column two can be staggered to isolate the construction waste, and the fixed column one and the fixed column two can be poured into the post-installed waterproof strip connecting block during pouring, so that the overall resistance to deformation can be further improved.
[0019] Preferably, the support column is fixedly installed with the stopper on the other end, the stopper is attached to the inclined surface of the concrete pouring block, and the top of the stopper is connected with the water retaining steel plate.
[0020] Through the technical scheme, the support column can support the water retaining steel plate, avoid deformation of the water retaining steel plate, and the stopper can improve the waterproofness of both sides.
[0021] Preferably, the reinforcing net is located on the inner side of the post-installed waterproof strip connecting block, and the post-installed waterproof strip connecting block is in a mesh structure in section.
[0022] Through the technical scheme, the reinforcing net is located at the inner side of the post-cast strip connecting block, after the concrete is poured, the reinforcing net can be fully combined with the concrete to form an integrated reinforcing structure, which can effectively constrain the expansion of the micro-cracks in the concrete, improve the tensile strength and crack resistance of the concrete, when the concrete is affected by temperature change, shrinkage or external load and other factors, the reinforcing net can share part of the stress to prevent the generation and development of cracks, thereby ensuring the structural strength and durability of the post-cast strip connecting block.
[0023] The waterproof structure of the super-long area post-cast strip in the utility model is carefully constructed with a multi-layer waterproof system, covering different types of waterproof layers, and resisting water penetration from multiple angles, wherein the SBS modified asphalt waterproof roll can well adapt to temperature changes, the high-molecular waterproof roll can effectively resist external loads, the polyurethane and polymer cement waterproof coating can adapt to structural deformation, and the waterproof layer of the water stop further strengthens the top waterproof function, effectively preventing water from penetrating into the post-cast strip from all directions, and greatly improving the overall waterproof performance.
[0024] Furthermore, the ingenious design of the various reinforcing bars in the waterproof structure and the close connection with the post-cast strip connecting block significantly improve the overall strength of the structure, enabling it to better withstand various loads and external forces, and the design of the support column and the stop block provides strong support for the water stop steel plate to prevent deformation, enhances the waterproofness on both sides, and simultaneously contributes significantly to improving the stability of the entire structure. BRIEF DESCRIPTION OF DRAWINGS
[0025] Figure 1 Fig. 1 is a first perspective view of the waterproof structure of the super-long area post-cast strip in the utility model;
[0026] Figure 2 Fig. 2 is a second perspective view of the waterproof structure of the super-long area post-cast strip in the utility model; Figure Two ;
[0027] Figure 3 Fig. 3 is a third perspective view of the waterproof structure of the super-long area post-cast strip in the utility model;
[0028] Figure 4 Fig. 4 is a schematic view of the installation structure of the baffle and the wooden frame in the utility model;
[0029] Figure 5 Fig. 5 is a schematic view of the installation structure of the first fixed column and the second fixed column in the utility model;
[0030] Figure 6 It is the installation structure schematic view of the first and second pouring block reinforcing bars in the utility model.
[0031] 1, the concrete pouring block; 2, the water retaining ridge; 3, the baffle; 4, the wooden frame; 5, the first waterproof layer; 6, the second waterproof layer; 7, the mortar leveling layer; 8, the post-cast strip connecting block; 9, the first top waterproof layer; 10, the first pouring block reinforcing bar; 11, the transverse reinforcing member; 12, the water retaining steel plate; 13, the second top waterproof layer; 14, the second pouring block reinforcing bar; 15, the first fixed column; 16, the second fixed column; 17, the reinforcing net; 18, the support column; 19, the blocking block. DETAILED DESCRIPTION
[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.
[0033] As shown in Figures 1-6 The long-range post-cast strip waterproof structure provided by the utility model mainly includes a concrete pouring block 1, a water retaining ridge 2, a baffle 3, a first waterproof layer 5, a second waterproof layer 6, a mortar leveling layer 7, a post-cast strip connecting block 8, a first top waterproof layer 9, a first pouring block reinforcing bar 10, a transverse reinforcing member 11, a water retaining steel plate 12, a second top waterproof layer 13, a second pouring block reinforcing bar 14, a reinforcing net 17 and a blocking block 19.
[0034] The water retaining ridge 2 is inserted and connected to the top of the baffle 3, the baffle 3 is fixedly installed with the wooden frame 4 at the bottom, the first waterproof layer 5 is poured in the inner side of the concrete pouring block 1, the second waterproof layer 6 is poured on the top of the first waterproof layer 5, the mortar leveling layer 7 is poured on the top of the second waterproof layer 6, the post-cast strip connecting block 8 is poured on the top of the mortar leveling layer 7, the first top waterproof layer 9 and the second top waterproof layer 13 are poured on the top of the post-cast strip connecting block 8, the water retaining steel plate 12 is fixedly installed in the inner side of the concrete pouring block 1, the first waterproof layer 5 is a waterproof roll waterproof layer, the second waterproof layer 6 is a waterproof coating waterproof layer, and the first top waterproof layer 9 and the second top waterproof layer 13 are water stop belt waterproof layers.
[0035] In some embodiments, the utility model is fixedly installed with the first pouring block reinforcing bar 10 in the inner side of the concrete pouring block 1, and the first waterproof layer 5 is an SBS modified asphalt waterproof roll.
[0036] In this way, when the first waterproof layer 5 adopts the SBS modified asphalt waterproof roll material, the pouring block reinforcing rib one 10 on the inner side of the concrete pouring block 1 can be matched to pour the pouring connecting block 8 of the post-pouring belt, and the post-pouring belt waterproofing in the area with large temperature change, such as the northern area, can effectively cope with the temperature expansion caused by seasonal change.
[0037] In some embodiments, the utility model discloses in the bottom of wooden form 4 and the top of pouring block reinforcing rib one 10 contact, the top of pouring block reinforcing rib one 10 is fixedly installed with transverse reinforcing member 11 in the top of post-pouring belt connecting block 8, and the second waterproof layer 6 is polyurethane waterproof coating.
[0038] Here, through the design of wooden form 4, wooden form 4 can be contacted with pouring block reinforcing rib one 10, so that the top baffle 3 can be quickly installed, and construction waste can be avoided from falling into the construction site when not pouring, and the coating film formed after the curing of polyurethane waterproof coating has high elasticity and tensile strength, can adapt to the deformation of the post-pouring belt structure under the action of temperature change, concrete shrinkage or foundation settlement and other factors, when the structure deforms, the waterproof layer will not easily break or fall off, and still can keep good waterproof performance.
[0039] In some embodiments, the first waterproof layer 5 in the utility model is preferably composed of high molecular waterproof roll material, and the second waterproof layer 6 is preferably composed of polymer cement waterproof coating layer.
[0040] Here, through the design of high molecular waterproof roll material, when the high molecular waterproof roll material has excellent tensile strength, it can effectively resist deformation without being torn under the external load such as the pressure from the backfill soil above and vehicle driving, and the polymer cement waterproof coating combines the flexibility of organic polymer and the rigidity of cement, which makes it not only adapt to the slight deformation of the base layer, but also has certain compressive and bending strength, when the concrete structure produces slight deformation due to temperature change, shrinkage and other reasons, the polymer cement waterproof coating can stretch or compress without breaking, and can also maintain the integrity of the waterproof layer when subjected to external pressure.
[0041] In some embodiments, the utility model discloses that pouring block reinforcing rib two 14 is fixedly installed on one side of pouring block reinforcing rib one 10, pouring block reinforcing rib two 14 is fixedly installed on the top of pouring block reinforcing rib one 10, water retaining steel plate 12 is fixedly installed with support column 18 on the bottom, the cross section of pouring block reinforcing rib two 14 is "L" type structure, pouring block reinforcing rib two 14 is connected with pouring block reinforcing rib one 10 at both ends respectively, and extends to the middle of post-pouring belt connecting block 8.
[0042] Here through the pouring block reinforcing rib two 14 design, when using to high polymer waterproof coiled material and polymer cement waterproof paint, can pass through the pouring block reinforcing rib two 14 connecting pouring block reinforcing rib one 10, to another end is connected to the post-pouring band connecting block 8 when, can facilitate to improve the overall strength.
[0043] On this basis, the utility model further fixes and installs fixed column one 15 and fixed column two 16 on the top of pouring block reinforcing rib two 14, fixed column one 15 and fixed column two 16 are provided with same multiple, and are cross-shaped staggered distribution.
[0044] Through the design of fixed column one 15 and fixed column two 16, when not using baffle 3, the isolation of construction waste can be realized by the staggered fixed column one 15 and fixed column two 16, and at the same time, during pouring, fixed column one 15 and fixed column two 16 can also be poured into the post-pouring band, which can further improve the overall resistance to change ability.
[0045] In some embodiments, the utility model fixes and installs baffle 19 on the other end of support column 18, baffle 19 is attached to the inclined surface of concrete pouring block 1, and the top of baffle 19 is connected with water retaining steel sheet 12.
[0046] Through the design of support column 18, water retaining steel sheet 12 can be supported, avoiding the deformation of water retaining steel sheet 12, and baffle 19 can improve the waterproofness of both sides.
[0047] In some embodiments, the utility model fixes and installs baffle 19 on the other end of support column 18, baffle 19 is attached to the inclined surface of concrete pouring block 1, and the top of baffle 19 is connected with water retaining steel sheet 12.
[0048] Here, the reinforcing net 17 is located in the inner side of the post-pouring band connecting block 8, and after pouring concrete, the reinforcing net 17 can fully combine with the concrete to form an integrated reinforcing structure, which can effectively constrain the expansion of microcracks in the concrete, improve the tensile strength and crack resistance of the concrete, and when the concrete is affected by factors such as temperature change, shrinkage or external load, the reinforcing net 17 can share part of the stress to prevent the generation and development of cracks, thereby ensuring the structural strength and durability of the post-pouring band connecting block 8.
[0049] The application process of the ultra-long area post-pouring band waterproof structure will be described in detail below with reference to the drawings.
[0050] Combined Figures 1 to 6As shown, in the use process of the super-long post-cast waterproof structure, the first waterproof layer 5 adopts SBS modified asphalt waterproof roll material, which can be matched with the pouring block reinforcing rib 10 on the inner side of the pouring block 1 to pour the post-cast connecting block 8. For the post-cast waterproof structure of the building in the area with large temperature change, such as the northern area, this can effectively cope with the temperature expansion caused by seasonal change. The wood form 4 is designed to be in contact with the pouring block reinforcing rib 10, so that the top baffle 3 can be quickly installed, and the construction waste can be prevented from falling into the construction site when the pouring is not completed. The coating film formed by the curing of the polyurethane waterproof coating has very high elasticity and tensile strength, and can adapt to the deformation of the post-cast structure under the action of temperature change, concrete shrinkage or foundation settlement and other factors. When the structure deforms, the waterproof layer will not easily break or fall off, and can still maintain good waterproof performance.
[0051] The polymer waterproof roll material has excellent tensile strength, and can effectively resist deformation without being torn when bearing the pressure of the backfilling soil above, vehicle driving and other external loads. The polymer cement waterproof coating combines the flexibility of organic polymer and the rigidity of cement, which can adapt to the slight deformation of the base and has certain compressive and bending strength. When the concrete structure deforms slightly due to temperature change, shrinkage and other reasons, the polymer cement waterproof coating can stretch or compress without breaking, and can also maintain the integrity of the waterproof layer when subjected to external pressure. Through the design of the pouring block reinforcing rib 2 14, the pouring block reinforcing rib 2 14 can be connected to the pouring block reinforcing rib 1 10 and the other end to the post-cast connecting block 8 when using the polymer waterproof roll material and the polymer cement waterproof coating, so as to improve the overall strength.
[0052] Through the design of the fixed column 1 5 and the fixed column 2 16, the construction waste can be isolated by staggered arrangement of the fixed column 1 5 and the fixed column 2 16 when the baffle 3 is not used. When pouring, the fixed column 1 5 and the fixed column 2 16 are poured into the post-cast zone, which can further improve the overall anti-deformation ability. Further, the support column 1 8 can support the water retaining steel plate 1 2 to avoid deformation of the water retaining steel plate 1 2. The stop block 1 9 can improve the waterproofness of both sides of the whole. The reinforcing net 1 7 is located on the inner side of the post-cast connecting block 8. After pouring the concrete, the reinforcing net 1 7 can be fully combined with the concrete to form an overall reinforced structure, effectively restraining the expansion of internal micro-cracks of the concrete and improving the tensile strength and crack resistance of the concrete. When the concrete is affected by temperature change, shrinkage or external load and other factors, the reinforcing net 1 7 can share part of the stress to prevent the generation and development of cracks, thereby ensuring the structural strength and durability of the post-cast connecting block 8.
[0053] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An ultra-long area post-cast strip waterproof structure, comprising a concrete pouring block (1) and a reinforcing net (17), characterized in that: The water baffle (2) top plug-in installation has the baffle (3), the baffle (3) bottom fixed mounting has the wooden board (4), the concrete pouring block (1) inside pouring has the first waterproof layer (5), the first waterproof layer (5) top pouring has the second waterproof layer (6), the second waterproof layer (6) top pouring has the mortar leveling layer (7), the mortar leveling layer (7) top pouring has the post-cast strip connecting block (8), the post-cast strip connecting block (8) top pouring has the first top waterproof layer (9) and the second top waterproof layer (13), the concrete pouring block (1) inside fixed mounting has the water retaining steel plate (12), the first waterproof layer (5) is waterproof roll waterproof layer, the second waterproof layer (6) is waterproof coating waterproof layer, the first top waterproof layer (9) and the second top waterproof layer (13) are water stop belt waterproof layer.
2. The waterproof structure with an ultra-long post-pouring strip zone according to claim 1, characterized in that: The concrete pouring block (1) inside fixed mounting has the pouring block reinforcing rib one (10), and the first waterproof layer (5) is SBS modified asphalt waterproof roll.
3. The waterproof structure with super-long post-pouring belt according to claim 2, characterized in that: The bottom of the wooden board (4) is in contact with the top of the pouring block reinforcing rib one (10), and the pouring block reinforcing rib one (10) is located at the top of the post-cast strip connecting block (8) and is fixedly installed with a transverse reinforcing member (11), and the second waterproof layer (6) is a polyurethane waterproof coating.
4. The waterproof structure with super-long post-pouring belt according to claim 1, characterized in that: The first waterproof layer (5) is a high polymer waterproof roll, and the second waterproof layer (6) is a polymer cement waterproof coating.
5. The waterproof structure with super-long post-pouring belt according to claim 2, characterized in that: The pouring block reinforcing rib one (10) one side fixed mounting has the pouring block reinforcing rib two (14), the pouring block reinforcing rib one (10) top fixed mounting has the pouring block reinforcing rib two (14), the water retaining steel plate (12) bottom fixed mounting has the support column (18), the pouring block reinforcing rib two (14) section is in the form of "L" letter type structure, the pouring block reinforcing rib two (14) is connected with the pouring block reinforcing rib one (10) at both ends respectively and extends into the post-cast strip connecting block (8).
6. The waterproof structure with super-long area post-pouring belt according to claim 5, characterized in that: The pouring block reinforcing rib two (14) top fixed mounting has the fixed column one (15) and the fixed column two (16), the fixed column one (15) and the fixed column two (16) are provided with same multiple, and are in the form of cross staggered distribution.
7. The waterproof structure with super-long area post-pouring belt according to claim 6, characterized in that: The support column (18) other end fixed mounting has the block (19), the block (19) and the concrete pouring block (1) bevel are pasted, and the top of the block (19) is connected with the water retaining steel plate (12).
8. The waterproof structure with super-long area post-pouring belt according to claim 7, characterized in that: The reinforcing net (17) is located in the inside of the post-cast strip connecting block (8), and the post-cast strip connecting block (8) is in the form of "net" structure.
Citation Information
Patent Citations
Building post-cast strip waterproof structure
CN221523655U