Anti-seepage structure for construction joint of basement outer wall
By adding additional reinforcing bars and diagonal haunches at the construction joints to expand the area of the water-stop steel plate, the problem of leakage in the basement exterior walls was solved, and the anti-leakage capacity, structural stability, and ease of construction of the construction joints were enhanced.
Patent Information
- Application Number
- CN202520012665.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-01-03
AI Technical Summary
Due to the poor bonding between old and new concrete at the construction joints of the basement exterior walls, the water-stop steel plate affects the concrete thickness and vibration effect, leading to frequent leakage and impacting the building's functionality and durability.
Additional reinforcing bars are added at the construction joint, and oblique haunches are designed to increase the concrete thickness of the waterstop steel plate. The waterstop steel plate and additional reinforcing bars are combined to form a seepage-proof structure.
It improves the structural strength and anti-leakage performance of construction joints, reduces leakage problems, simplifies construction and keeps costs under control, and significantly enhances the anti-leakage effect.
Smart Images

Figure CN223813775U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to building construction technical direction, concretely relates to a basement outer wall construction joint anti -permeation structure. BACKGROUND
[0002] In the basement outer wall construction process, usually need to set up construction joint at 300-500mm of basement bottom plate, and pre -buried water stop steel plate, the part concrete and bottom plate together and pour, then chisel and clean to construction joint, construction upper basement outer wall structure again, however, this traditional construction joint remains some problems, because new and old concrete combination is not enough close, water stop steel plate has weakened to concrete thickness, and water stop steel plate has influence to the effect of vibrating, lead to concrete can not perfect dense, thereby make basement outer wall construction joint place prone to leakage phenomenon, influence the use function and durability of building. SUMMARY
[0003] The utility model discloses a basement outer wall construction joint anti -permeation structure to solve the problems in the background art.
[0004] In order to solve the above technical problem, the utility model provides the following technical scheme: a basement outer wall construction joint anti -permeation structure, including foundation beam, the top of foundation beam is provided with basement outer wall, the top of foundation beam is provided with the new wall on both sides of the bottom of basement outer wall, the top of new wall is provided with the add haunch, and the top of foundation beam and new wall is provided with construction joint between basement outer wall and the bottom of add haunch, the inside of construction joint is provided with water stop steel plate and additional reinforcement respectively, the top of water stop steel plate is located in the inside of basement outer wall, and the bottom of water stop steel plate is located in the inside of foundation beam, the top of additional reinforcement is located in the inside of basement outer wall, and the bottom of additional reinforcement respectively penetrates add haunch and new wall and extends into the inside of foundation beam.
[0005] Further, the width of the new wall is 50-100mm.
[0006] Further, the add haunch is arranged in an inclined manner, and the height of the add haunch is greater than or equal to 150mm, and the height of the add haunch is higher than the height of the water stop steel plate.
[0007] Further, the width of the water stop steel plate is 300mm.
[0008] Compared with the prior art, the utility model reaches the beneficial effects that: the utility model,
[0009] (1) by the basement outer wall construction joint below the position on the width of the increase, and set additional reinforcement, improve the construction joint structure strength and stability, and construction joint upper inclined add haunch design, expand the range of concrete thickness of water stop steel plate, enhance the basement outer wall in construction joint place of anti-leakage performance, effectively reduce the occurrence of leakage problems, while the overall structure is simple, convenient construction, easy to operate, can not significantly increase the construction cost premise, significantly improve the basement outer wall construction joint anti-leakage effect. BRIEF DESCRIPTION OF DRAWINGS
[0010] The accompanying drawings are included to provide a further understanding of the present application and are incorporated in and constitute a part of this specification, illustrate embodiments of the present application and are used to explain the present application, and do not constitute a limitation on the present application. In the drawings:
[0011] Figure 1 is the overall structure of the present utility model schematic diagram.
[0012] In the figure: 1, foundation pile cap; 2, basement outer wall; 3, new wall; 4, add haunch; 5, construction joint; 6, water stop steel plate; 7, additional reinforcement. DETAILED DESCRIPTION
[0013] The following will be further non-restricting detailed description of the technical scheme of the present application combined with preferred embodiments and its drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.
[0014] Please refer to Figure 1 , the present application provides technical scheme: a basement outer wall construction joint anti-leakage structure, including foundation pile cap 1, the top of foundation pile cap 1 is provided with basement outer wall 2, the top of foundation pile cap 1 is provided with new wall 3 near the bottom of both sides of basement outer wall 2, the top of new wall 3 is provided with add haunch 4, the top of foundation pile cap 1 and new wall 3 and the bottom of basement outer wall 2 and add haunch 4 between construction joint 5, the inside of construction joint 5 is provided with water stop steel plate 6 and additional reinforcement 7 respectively, the top of water stop steel plate 6 is located in the inside of basement outer wall 2, and the bottom of water stop steel plate 6 is located in the inside of foundation pile cap 1, the top of additional reinforcement 7 is located in the inside of basement outer wall 2, and the bottom of additional reinforcement 7 is respectively through add haunch 4 and new wall 3 and extends into the inside of foundation pile cap 1.
[0015] Further, the width of new wall 3 is 50-100mm.
[0016] Further, the add-on 4 is arranged in an inclined manner, and the height of the add-on 4 is greater than or equal to 150 mm, and the height of the add-on 4 is higher than the height of the water-stop steel plate 6.
[0017] Further, the width of the water-stop steel plate 6 is 300 mm.
[0018] During construction, first, when pouring the upper part of the basement outer wall 2, the part below the construction joint of the basement outer wall 2 is additionally provided with a new wall 3 with a thickness of 50-100 mm, and additional steel bars 7 are arranged in the new wall 3, the spacing of the additional steel bars 7 is the same as that of the outer wall, after the formwork is removed, the water-stop steel plate 6 is cleaned, the construction joint is chiseled and cleaned, and then the additional steel bars 7 are bent towards the basement outer wall 2, and then the inclined formwork is erected, so that the upper part of the construction joint of the outer wall forms an inclined add-on 4, the height of the add-on 4 is greater than or equal to 150 mm, and the height of the add-on 4 is higher than the height of the water-stop steel plate, so as to expand the thickness of the concrete in the range of the water-stop steel plate 6, thereby effectively improving the anti-permeation effect.
[0019] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application.
[0020] Finally, it should be pointed out that: the above examples are only used to illustrate the technical solutions of the present application, and not to limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent substitutions for part of the technical features, and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. A basement exterior wall construction joint leakproofing structure comprising a foundation slab (1), characterized by: The top of the foundation platform (1) is provided with a basement outer wall (2), the top of the foundation platform (1) is provided with a new wall (3) near the bottom of the two sides of the basement outer wall (2), the top of the new wall (3) is provided with a haunch (4), a construction joint (5) is arranged between the top of the foundation platform (1) and the new wall (3) and the bottom of the basement outer wall (2) and the haunch (4), the inside of the construction joint (5) is respectively provided with a water stop steel plate (6) and an additional steel bar (7), the top of the water stop steel plate (6) is located in the inside of the basement outer wall (2), and the bottom of the water stop steel plate (6) is located in the inside of the foundation platform (1), the top of the additional steel bar (7) is located in the inside of the basement outer wall (2), and the bottom of the additional steel bar (7) respectively penetrates the haunch (4) and the new wall (3) and extends into the inside of the foundation platform (1).
2. The basement exterior wall construction joint anti-leakage structure according to claim 1, characterized in that: The width of the new wall (3) is 50-100mm.
3. The basement exterior wall construction joint anti-leakage structure according to claim 1, characterized in that: The haunch (4) is arranged in an inclined shape, the height of the haunch (4) is greater than or equal to 150mm, and the height of the haunch (4) is higher than the height of the water stop steel plate (6).
4. The basement exterior wall construction joint leak barrier of claim 1, wherein: The width of the water stop steel plate (6) is 300mm.