Basement bottom plate post-cast strip water stop structure
Through integrated casting and the use of prefabricated rib mesh, the problems of poor waterproof performance and high construction labor intensity of the traditional basement basement bottom plate structure are solved, and higher connection strength and water stop effect are achieved, simplifying the construction process.
Patent Information
- Application Number
- CN202420642937.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-03-29
AI Technical Summary
The traditional basement bottom plate rear water stop structure has poor waterproof performance, and a large number of steel bars need to be tied during construction, which is very labor-intensive for workers, which is not conducive to rapid construction.
The basement bottom plate back-pouring strip water stop structure is adopted, including prefabricated rib mesh and concrete pouring structure. The prefabricated rib mesh reduces the workload of steel bar laying, and a water stop component and isolation structure are installed in the concrete structure to improve waterproofing effect.
The connection strength and water stop effect between the basement floor and the rear pouring strip are improved, the risk of water leakage is reduced, the construction process is simplified, and the labor intensity of workers is reduced.
Smart Images
Figure CN222332782U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of construction, in particular to a water-stopping structure for a post-cast strip of a basement floor. Background Art
[0002] Post-cast strips refer to temporary deformation joints due to temperature, shrinkage and settlement that are retained during construction in cast-in-place integral reinforced concrete structures. The joints are retained for a certain period of time according to the specific construction conditions, and then filled with concrete to become a continuous, integral, non-expansion structure. The setting of post-cast strips can effectively eliminate the additional stress caused by the deformation of structural components or uneven settlement of the foundation, effectively reduce or prevent the development and growth of cracks, and are very beneficial to the waterproofing of the foundation and basement.
[0003] The corresponding post-cast waterstop structure should also be set in the basement floor structure. There are many existing post-cast waterstop structures, but most of them use rubber waterproof strips as the main waterstop structure at the connection. This method is not ideal in waterproofing, and the traditional post-cast waterstop needs to tie a large amount of steel bars during the pouring process, which has high labor intensity for workers and is not conducive to the rapid progress of construction operations. Utility Model Content
[0004] The main purpose of the utility model is to provide a basement floor post-cast waterstop structure, aiming to solve the problems of poor waterproof performance of traditional basement floor post-cast waterstop structures and high labor intensity of operators during construction.
[0005] In order to achieve the above-mentioned purpose, the utility model provides a water-stopping structure for a post-cast strip of a basement floor, comprising:
[0006] A cushion layer, including a horizontal portion and a concave portion;
[0007] A reinforcement mesh structure, comprising an upper reinforcement mesh and a prefabricated reinforcement mesh, wherein the upper reinforcement mesh is arranged on the horizontal portion, the prefabricated reinforcement mesh is arranged on the upper side of the bottom of the lower concave portion corresponding to the bottom shape of the lower concave portion, and both ends of the prefabricated reinforcement mesh are connected to the upper reinforcement mesh; and,
[0008] The concrete casting structure includes a pre-cast concrete structure and a post-cast concrete structure. The pre-cast concrete structure is coated on the prefabricated reinforcement mesh and part of the upper reinforcement mesh to form a post-cast groove just above the recessed portion. The post-cast concrete structure is arranged at the post-cast groove to fill and seal the post-cast groove.
[0009] Preferably, the prefabricated reinforcement mesh comprises:
[0010] A main frame portion is disposed at a middle position of the lower concave portion along the length direction of the cushion layer; and
[0011] A plurality of first steel bars are evenly spaced and arranged on two opposite long side walls of the main frame portion, and the plurality of first steel bars are bent corresponding to the shape of the recessed portion, and the plurality of first steel bars are arranged on one side of the inner wall of the recessed portion corresponding to the shape of the recessed portion.
[0012] Preferably, the upper reinforcement mesh comprises:
[0013] A first reinforcement mesh portion is arranged near the opening surface of the post-casting slot opening, wherein the first reinforcement mesh portion includes a plurality of second reinforcement bars evenly spaced and arranged perpendicularly to each other on a horizontal plane; and
[0014] A second reinforcement mesh portion is provided below the first reinforcement mesh portion, the second reinforcement mesh portion comprises a plurality of third reinforcement bars uniformly arranged along the width direction of the main frame portion on a horizontal plane, and a plurality of fourth reinforcement bars perpendicular to the plurality of third reinforcement bars on both horizontal sides of the post-casting groove on a horizontal plane, and opposite ends of two fourth reinforcement bars corresponding to the two horizontal sides of the post-casting groove are connected by a sleeve portion;
[0015] One end of each of the plurality of first steel bars is connected to one of the third steel bars.
[0016] Preferably, the water-stopping structure of the post-cast strip of the basement floor also includes a water-stopping component, which includes two water retaining parts arranged at two vertical intersections of the first cast concrete structure and the post-cast concrete structure, and the water retaining parts are used to block rainwater that penetrates into the gap between the first cast concrete structure and the post-cast concrete structure.
[0017] Preferably, the water retaining member comprises:
[0018] water retaining plate; and,
[0019] The mounting frame includes a frame portion and a plurality of vertical ribs, wherein the plurality of vertical ribs are evenly spaced and installed between two opposite horizontal inner walls of the frame portion, and the plurality of vertical ribs are respectively connected to the plurality of fourth steel bars, and the water retaining plate is fixedly installed on an upward end portion of the mounting frame, and the horizontal ends of the water retaining plate are respectively cast inside the first cast concrete structure and the post-cast concrete structure.
[0020] Preferably, the water-stop assembly further comprises two expansion water-stop rubber blocks;
[0021] The first cast concrete structure is provided with mounting grooves at two vertical side walls corresponding to the direction of the post-cast groove, one end of the two expansion water-stopping rubber blocks is respectively arranged at the two mounting grooves, and the other end of the expansion water-stopping rubber block is cast inside the post-cast concrete structure; and / or,
[0022] A plurality of connection parts are arranged on a downward end of the frame part, and downward ends of the plurality of connection parts are respectively connected to the first steel bars.
[0023] Preferably, a roughened portion is formed on the inner wall of the post-casting groove.
[0024] Preferably, a cover structure is provided above the structure on the first cast concrete structure corresponding to the structure on the second cast concrete structure, and the cover structure comprises a plywood cover plate, and the plywood cover plate is fixedly installed on the first cast concrete structure corresponding to the structure on the second cast concrete structure.
[0025] Preferably, the concrete strength grade of the post-cast concrete structure is one level higher than that of the pre-cast concrete structure, and the post-cast concrete is micro-expansive concrete.
[0026] Preferably, an isolation structure is provided between the cushion layer and the precast concrete structure, and the isolation structure comprises an asphalt layer provided on the cushion layer, and a waterproof membrane structure provided between the asphalt layer and the precast concrete structure.
[0027] In the technical solution of the present utility model, the basement floor and the water-stopping part of the recessed part are cast in an integrated manner. The pre-cast concrete structure formed by the integrated casting has better concrete uniformity than the traditional multi-stage casting structure, and can effectively reduce the connection gap, thereby improving the connection strength between the basement floor and the post-cast strip structure, reducing the risk of water leakage, and a plurality of water-stopping structures are arranged at the connection between the post-cast concrete structure and the pre-cast concrete structure, which can further improve the water-stopping effect of the entire structure. During the construction process, a prefabricated reinforcement mesh is provided at the part corresponding to the recessed part to replace the traditional steel mesh laying operation, which can greatly reduce the workload of laying steel bars one by one during on-site construction, and can effectively reduce the construction period. The size of the preset reinforcement mesh can be fully pre-produced in actual construction scenarios, and has good application prospects. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0029] Figure 1 A schematic diagram of the structure of the water-stopping structure of the post-cast belt of the basement floor provided by the utility model;
[0030] Figure 2 for Figure 1 A partial enlarged view of the middle A;
[0031] Figure 3 for Figure 1 A partial enlarged view of point B in the middle;
[0032] Figure 4 for Figure 1 Schematic diagram of the structure of the prefabricated reinforcement mesh.
[0033] Description of Figure Numbers:
[0034]
[0035] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0037] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0038] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.
[0039] The corresponding post-cast waterstop structure should also be set in the basement floor structure. There are many existing post-cast waterstop structures, but most of them use rubber waterproof strips as the main waterstop structure at the connection. This method is not ideal in waterproofing, and the traditional post-cast waterstop needs to tie a large amount of steel bars during the pouring process, which has high labor intensity for workers and is not conducive to the rapid progress of construction operations.
[0040] In order to solve the above problems, the utility model proposes a water-stopping structure for the post-cast strip of the basement floor. Figures 1 to 4 The present invention is a schematic structural diagram of an embodiment of the basement floor post-cast strip water-stopping structure 1000 provided by the present invention.
[0041] Please refer to Figures 1 to 4The utility model proposes a basement floor post-cast strip water-stopping structure 1000, which is mainly intended to solve the problems that the traditional post-cast strip water-stopping structure needs to tie a large amount of steel bars during construction, which results in a large workload for workers, and the water-stopping effect of the water-stopping structure after pouring is poor. In this solution, the structure mainly includes a cushion layer 1, a reinforcement mesh structure 2 and a concrete pouring structure 3. Among them, the reinforcement mesh structure 2 mainly includes an upper reinforcement mesh 21 and a prefabricated reinforcement mesh 22. The upper reinforcement mesh 21 is mainly arranged on the horizontal part 11 of the cushion layer 1. The prefabricated reinforcement mesh 22 is a prefabricated component, which is mainly arranged on the inner side of the recessed part 12 of the cushion layer 1. The shape of the prefabricated reinforcement mesh 22 corresponds to the recessed shape of the recessed part 12. In the actual installation process, the integral prefabricated reinforcement mesh 22 is placed on the inner side of the recessed part 12, and then the two ends of the prefabricated reinforcement mesh 22 are connected to the upper reinforcement mesh 21, so that an integral connection is formed between the two reinforcement mesh structures 2. In this construction process, since the prefabricated reinforcement mesh 22 is a prefabricated component, the operation of bundling multiple reinforcement bodies in sequence at the recessed part of the cushion layer 1 in the conventional construction process is avoided, which greatly reduces the labor intensity of the workers and makes the entire construction process simpler. It should be noted that the diameter of the steel bars in the reinforcement mesh structure 2 should not be less than 10 mm. The concrete casting structure 3 includes a precast concrete structure 31 and a postcast concrete structure 33, wherein in the actual construction process, the upper reinforcement mesh 21 and the precast reinforcement mesh 22 are formed by the precast concrete casting. In the actual construction process, the casting structure of the horizontal portion 11 is the basement floor structure. Compared with the traditional method of casting the concave portion 12 and the horizontal portion 11 separately, this embodiment can further improve the uniformity of the concrete at the basement floor and the concave portion 12, thereby improving the overall strength of the concrete after solidification, so that the concrete structure of the basement floor and the concave portion 12 has better mechanical properties and sealing. After the concrete structure 31 solidifies, the first-cast concrete structure 31 is cured, and then the surface of part of the steel bars located at the post-casting groove 32 is cleaned, and the debris inside the post-casting groove 32 is fully cleaned. After cleaning, the post-cast concrete is poured into the post-casting groove 32 and vibrated. After solidification, the post-cast concrete structure 33 is formed. It should be noted that the concrete grade of the post-cast concrete structure 33 is higher, so compared with the first-cast concrete structure 31, its level of impermeability and pressure resistance is higher, and the post-cast concrete is a micro-expansive concrete. After pouring, it has better impermeability and better structural strength, and can achieve better sealing at the post-casting groove 32.
[0042] Among them, the multiple first steel bars 222 on the prefabricated reinforcement mesh 22 are fixed by the main frame part 221. The main frame part 221 has multiple openings. During the pouring process, it is beneficial for concrete to flow to the bottom of the main frame part 221. In addition, the multiple first steel bars are an integral prefabricated part before being tied to the upper reinforcement mesh 21. When in use, they can be lifted and placed in the lower recessed part 12 as a whole. When tying, only one end of the multiple first steel bars 222 needs to be tied to the upper reinforcement mesh 21. Compared with the traditional operation method of gradually connecting and fixing the multiple first steel bars 222 through multiple tendons, and then tying and fixing their ends one by one, the prefabricated reinforcement mesh 22 can effectively reduce the workload of workers, and the width of the post-casting strip is usually between 600mm and 1000mm. Within this width range, it is completely feasible to set the traditional multiple steel bar structure arranged in the recessed part as an integral prefabricated part, and it will not affect the portability of transportation. In addition, the prefabricated reinforcement mesh 22 Figure 4 In addition to the structure shown, it can also be set as a mesh structure, etc., and can be prefabricated according to actual construction conditions.
[0043] The upper reinforcement mesh 21 includes two layers, the upper layer is a first reinforcement mesh part 211, which is arranged in a concrete plane near the opening of the post-casting groove 32 and is formed by a plurality of second steel bars 211a crisscrossed and connected, and the lower layer is a second reinforcement mesh part 212, which is arranged below the first reinforcement mesh part 211 and near the upper position of the horizontal part 11, and the second reinforcement mesh part 212 includes a plurality of third steel bars 212a uniformly arranged along the width direction of the main frame part 221 on the horizontal plane, and a plurality of fourth steel bars 212a perpendicular to each other and corresponding to the horizontal sides of the post-casting groove 32 on the horizontal plane. 12b, when the steel bar structure is erected, the fourth steel bars 212b on both sides of the horizontal post-casting groove 32 are first erected, and then the ends of the two relatively horizontal fourth steel bars 212b are connected by the sleeve portion 212c, and then the plurality of third steel bars 212a and the plurality of fourth steel bars 212b are bundled together in a staggered manner, and finally the pouring operation is performed. After the pouring, the upper and lower layers of the reinforcement mesh parts can ensure the structural strength of the first concrete structure, and it can be imagined that the number of the first reinforcement mesh part 211 and the second reinforcement mesh part 212 can be set according to the specific thickness of the basement floor.
[0044] In order to improve the sealing performance of the post-cast concrete structure 33 at the post-cast groove 32, a water stop assembly 4 is provided at the vertical connection between the pre-cast concrete structure 31 and the post-cast concrete structure 33. Specifically, the water retaining member 41 in the water stop assembly 4 is installed in the process of tying the fourth steel bar 212b. After the fourth steel bar 212b is tied and fixed on the upper end surface of the horizontal portion 11, the frame portion 412a is inserted from one end of the plurality of fourth steel bars 212b, and then the plurality of vertical bars 412b on the frame portion 412a are tied and fixed together with the corresponding plurality of fourth steel bars 212b by metal tying wire, and then the water retaining plate 411 is fixedly installed on the frame part 412a. It should be noted that the horizontal two end positions of the water retaining plate 411 should ensure that they are respectively cast in the first cast concrete structure 31 and the post-cast concrete structure 33 after pouring. Therefore, when installing the frame part 412a, it is necessary to adjust the position of the frame part 412a. Through the above method, two water retaining parts 41 are installed. Specifically, after the post-cast concrete structure 33 is also solidified, the water retaining plate 411 can effectively block the infiltrated water at the junction of the first cast concrete structure 31 and the post-cast concrete structure 33, thereby further improving the water-resistant property of the entire post-cast waterstop structure.
[0045] In order to improve the fixing stability of the frame portion 412a, a plurality of evenly spaced connecting portions 412c are provided on the lower end portion of the frame portion 412a. The connecting portions 412c can be connected and fixed together with the first steel bars in the lower recess 12 when the frame portion 412a is installed, thereby improving the stability of the frame portion 412a after being fixed.
[0046] Wherein, the water-stopping component 4 also includes two expansion water-stopping rubber blocks 42. Specifically, when the first cast concrete structure 31 is cast, a long groove is reserved on the side walls of the two opposite ends in the horizontal direction. After it is fully solidified and cured, one end of the expansion water-stopping rubber block 42 is inserted into the long groove, and then the second steel bar 211a, the third steel bar 212a, the fourth steel bar 212b and the sleeve part 212c located at the post-casting groove 32 are cleaned. After the cleaning is completed, the inner side wall of the post-casting groove 32 is roughened to form a roughened part 5 on its side wall. After the excavation is completed, the inside of the post-casting groove 32 is cleaned, and then Concrete of a higher grade than the first cast concrete structure 31 is poured inside the post-cast groove 32, and the concrete is fully vibrated. After the concrete solidifies, the post-cast concrete structure 33 is formed. The post-cast concrete structure 33 is covered by the water retaining plate 411 and the other end of the expansion water stop block 42. The expansion water stop block 42 can expand a certain volume by itself after meeting water, thereby increasing the sealing of the joint between the first cast concrete structure 31 and the post-cast concrete structure 33. In addition, the roughened portion 5 increases the tightness of the connection between the two concrete structures, thereby improving the overall strength of the entire basement floor post-cast belt water stop structure 1000.
[0047] At the same time, in order to further improve the water-stopping performance of the post-cast strip water-stopping structure 1000 of the basement floor, an isolation structure is provided between the cushion layer 1 and the pre-cast concrete structure 31. Specifically, before the reinforcement mesh structure 2 is laid, an asphalt layer 13 is first provided on the cushion layer 1, and then a part of the waterproof membrane is provided on the asphalt layer 13, so that the water-stopping performance of the post-cast strip water-stopping structure 1000 of the entire basement floor is further improved through the multi-layer water-blocking structure.
[0048] In addition, after the post-cast concrete structure 33 is solidified and cured, the plywood cover plate 6 is fixedly installed on the pre-cast concrete structure 31 corresponding to the post-cast concrete structure 33 by bolts, so as to cover and seal the top of the post-cast concrete structure 33 .
[0049] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A water-stopping structure for a post-cast strip of a basement floor, characterized in that: include: A cushion layer, including a horizontal portion and a concave portion; A reinforcement mesh structure, comprising an upper reinforcement mesh and a prefabricated reinforcement mesh, wherein the upper reinforcement mesh is arranged on the horizontal portion, and the prefabricated reinforcement mesh is arranged on the upper side of the bottom of the lower concave portion corresponding to the bottom shape of the lower concave portion, and the two ends of the prefabricated reinforcement mesh are connected to the upper reinforcement mesh; as well as, The concrete casting structure includes a pre-cast concrete structure and a post-cast concrete structure. The pre-cast concrete structure is coated on the prefabricated reinforcement mesh and part of the upper reinforcement mesh to form a post-cast groove just above the recessed portion. The post-cast concrete structure is arranged at the post-cast groove to fill and seal the post-cast groove.
2. The basement floor post-casting water-stopping structure according to claim 1, characterized in that: The prefabricated reinforcement mesh comprises: A main frame portion is disposed at a middle position of the lower concave portion along the length direction of the cushion layer; and A plurality of first steel bars are evenly spaced and arranged on two opposite long side walls of the main frame portion, and the plurality of first steel bars are bent corresponding to the shape of the recessed portion, and the plurality of first steel bars are arranged on one side of the inner wall of the recessed portion corresponding to the shape of the recessed portion.
3. The basement floor post-casting water-stopping structure according to claim 2, characterized in that: The upper reinforcement mesh comprises: A first reinforcement mesh portion is arranged near the opening surface of the post-casting slot opening, wherein the first reinforcement mesh portion includes a plurality of second reinforcement bars evenly spaced and arranged perpendicularly to each other on a horizontal plane; and A second reinforcement mesh portion is provided below the first reinforcement mesh portion, the second reinforcement mesh portion comprises a plurality of third reinforcement bars uniformly arranged along the width direction of the main frame portion on a horizontal plane, and a plurality of fourth reinforcement bars perpendicular to the plurality of third reinforcement bars on both horizontal sides of the post-casting groove on a horizontal plane, and opposite ends of two fourth reinforcement bars corresponding to the two horizontal sides of the post-casting groove are connected by a sleeve portion; One end of each of the plurality of first steel bars is connected to one of the third steel bars.
4. The basement floor post-casting water-stopping structure according to claim 3, characterized in that: The water-stopping structure of the post-cast strip of the basement floor also includes a water-stopping component, which includes two water retaining parts arranged at two vertical intersections of the first cast concrete structure and the post-cast concrete structure, and the water retaining parts are used to block rainwater that penetrates into the gap between the first cast concrete structure and the post-cast concrete structure.
5. The basement floor post-casting water-stopping structure according to claim 4, characterized in that: The water retaining member comprises: water retaining plate; and, The mounting frame includes a frame portion and a plurality of vertical ribs, wherein the plurality of vertical ribs are evenly spaced and installed between two opposite horizontal inner walls of the frame portion, and the plurality of vertical ribs are respectively connected to the plurality of fourth steel bars, and the water retaining plate is fixedly installed on an upward end portion of the mounting frame, and the horizontal ends of the water retaining plate are respectively cast inside the first cast concrete structure and the post-cast concrete structure.
6. The basement floor post-casting water-stopping structure according to claim 5, characterized in that: The water-stop assembly also includes two expansion water-stop rubber blocks; The first cast concrete structure is provided with mounting grooves at two vertical side walls corresponding to the direction of the post-cast groove, one end of the two expansion water-stopping rubber blocks is respectively arranged at the two mounting grooves, and the other end of the expansion water-stopping rubber block is cast inside the post-cast concrete structure; and / or, A plurality of connection parts are arranged on a downward end of the frame part, and downward ends of the plurality of connection parts are respectively connected to the first steel bars.
7. The basement floor post-cast strip water-stopping structure according to claim 1, characterized in that: A roughening portion is formed on the inner wall of the post-casting trough.
8. The basement floor post-casting water-stopping structure according to claim 2, characterized in that: A cover structure is provided above the structure of the first cast concrete structure corresponding to the structure of the second cast concrete. The cover structure includes a plywood cover plate. The plywood cover plate is fixedly installed on the first cast concrete structure corresponding to the structure of the second cast concrete.
9. The basement floor post-casting water-stopping structure according to claim 8, characterized in that: The concrete strength grade of the post-cast concrete structure is one level higher than that of the pre-cast concrete structure, and the post-cast concrete is micro-expansive concrete.
10. The basement floor post-casting water-stopping structure according to claim 1, characterized in that: An isolation structure is provided between the cushion layer and the precast concrete structure. The isolation structure comprises an asphalt layer provided on the cushion layer and a waterproofing membrane structure provided between the asphalt layer and the precast concrete structure.