Novel expansion joint construction structure adjacent to wall column
By using a combination of special-shaped waterstop steel plates, concrete anti-water sills, foam rods and waterproof layers in expansion joints, the problem of easy corrosion and falling off of waterstop strips in existing technologies is solved, efficient waterproofing and structural stability are achieved, adapting to building deformation and reducing the risk of leakage.
Patent Information
- Application Number
- CN202422656975.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-10-31
AI Technical Summary
Existing expansion joint structures are prone to fatigue deformation or damage when facing heavy loads and frequent regular or irregular loads, and the waterstop is prone to corrosion and falling off, causing leakage, which makes it difficult to meet the waterproofing needs of large spans and large distances close to wall columns.
A combination of special-shaped water-stop steel plates, concrete anti-water sills, foam rods, sealing paste and waterproof layers is used to form a continuous waterproof barrier, which can adapt to expansion and contraction deformation and reduce stress concentration. Combined with the gutter drainage design, waterproof performance is ensured.
It effectively prevents moisture penetration, reduces the risk of leakage, improves the waterproof performance of buildings, extends the life of sealants, reduces the risk of structural damage, and improves building stability and service life.
Smart Images
Figure CN223398238U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of construction engineering, in particular to a novel expansion joint structure adjacent to a wall column. Background Art
[0002] A building expansion joint, also known as a expansion joint, is a structural joint set at an appropriate position along the construction joint direction of a building or structure to prevent cracks or damage to the structure due to climate and temperature changes (thermal expansion and contraction). An expansion joint divides building components above the foundation, such as walls, floor slabs, and roofs, into two independent parts, allowing the building or structure to expand and contract horizontally along its length. To solve the waterproofing problem of the expansion joint, a waterstop is usually filled in the expansion joint. However, the material in the expansion joint will be corroded and affected by external rainwater or other debris after long-term use, and the waterstop is prone to falling off, affecting its safety. Currently, the scale and complexity of buildings are constantly increasing, their plane dimensions are increasing, and their height and load-bearing capacity are also increasing. To ensure the structural safety and stability of buildings, it has become a common practice to reserve deformation joints in the design.
[0003] At present, the general expansion joint construction method described in "Architectural Construction with Expansion Joints" 14J936 is widely used. The reason for choosing this conventional method is that it can provide certain guidance for common building structures and meet the expansion and deformation requirements of ordinary buildings to a certain extent.
[0004] However, at present, expansion joints are usually filled with waterstops, but the materials in the expansion joints will be corroded and affected by external rain or other debris after long-term use, and the waterstops are likely to fall off, affecting their safety. In addition, the existing expansion joint construction methods have exposed many problems when facing special situations such as large-span expansion joints in railway track areas and expansion joints close to wall columns. For scenarios with heavy loads and frequent regular loads and irregular loads, the existing expansion joint structure is difficult to effectively cope with, and it is easy to cause fatigue deformation or even damage to the expansion joint structure. The existing expansion joint structure filler uses a filling waterstop, but the materials in the expansion joints will be corroded and affected by external rain or other debris after long-term use, and the waterstops are likely to fall off, causing leakage. Utility Model Content
[0005] In view of the shortcomings of the existing technology, the technical problem solved by the present invention is to provide a new expansion joint structure close to the wall column, which solves the problem that the existing technology cannot simultaneously achieve high strength, water stop, drainage, avoid wall column inserted reinforcement, and effectively reduce the damage to the expansion joint structure.
[0006] In order to solve the above problems, the technical solution adopted by the present invention is: a new expansion joint structural structure adjacent to the wall column, characterized in that: it includes a wall column structure, a floor structure is provided at the lower end of the wall column structure, and an expansion joint is provided between the floor structures; a special-shaped water-stop steel plate is provided in the expansion joint, and both ends of the special-shaped water-stop steel plate are placed in the floor structure; a waterproof reinforcement layer and a waterproof layer are provided on the expansion joint to cover the expansion joint; a gutter is provided on the lower end surface of the floor structure near the expansion joint position, and the gutter is fixedly connected to the floor structure.
[0007] The beneficial effects of this solution are: the setting of special-shaped water-stop steel plates can effectively prevent moisture from penetrating through expansion joints, reduce the risk of leakage, and improve the waterproof performance of buildings. The special-shaped water-stop steel plates set in expansion joints can adapt to the expansion and contraction deformation of the floor structure due to temperature changes, loads and other factors, and avoid structural damage caused by deformation; the gutter at the lower end surface of the floor structure near the expansion joint position can timely collect and discharge moisture that may seep from the expansion joint, and avoid damage to the building caused by accumulated water.
[0008] Furthermore, the special-shaped waterstop steel plate is a special-shaped galvanized waterstop steel plate, and both ends of the special-shaped waterstop steel plate are tilted upward. When the floor structure undergoes expansion and contraction deformation, the inclined ends can better follow the deformation movement, reducing the stress concentration between the waterstop steel plate and the concrete, thereby reducing the risk of damage caused by deformation.
[0009] Furthermore, concrete water-repellent ridges are provided on both floor structures at the upper end of the floor structure near the expansion joint, which can effectively block water from flowing into the expansion joint, reduce the possibility of water infiltration through the expansion joint, improve the overall waterproof performance of the floor, and avoid water accumulation in weak parts of the expansion joint. The water-repellent ridges are disconnected from the expansion joints, which also avoids the risk of the water-repellent ridges being torn by stress.
[0010] Furthermore, a foam rod is provided at the upper end of the waterstop steel plate to fill the expansion joint, which can reduce the stress generated by the expansion joint during the deformation process, play a buffering and protective role for the waterstop steel plate and the surrounding structure, and reduce the risk of damage caused by stress concentration. The foam rod is used to separate the waterstop steel plate and the polyurethane sealant, so that the polyurethane sealant is only affected by the force of the floor slab. The sealant is less likely to be pulled and damaged when subjected to force in two directions than when subjected to force in three directions, thereby extending the effective life of the sealant.
[0011] Furthermore, a sealing paste is provided at the upper end of the foam rod, and the sealing paste is filled to the same level as the upper surface of the concrete water return sill, thereby achieving continuous sealing from the bottom of the expansion joint to the upper surface of the concrete water return sill, forming a complete waterproof barrier, and minimizing the penetration of water. At the same time, the sealing paste has a certain flexibility and elasticity, and can expand and contract with the deformation of the expansion joint to maintain a good sealing state.
[0012] Furthermore, a waterproof mortar layer with rounded corners is provided at the connection between the wall column structure and the concrete anti-water sill. The rounded corner design can reduce stress concentration, make the stress distribution at the connection more uniform, and reduce the risk of cracking. The rounded corners can allow the waterproof mortar to better fit the junction of the wall column and the anti-water sill, reduce gaps and weak points, and improve waterproof performance.
[0013] Furthermore, the waterproof reinforcement layer and the waterproof layer cover the expansion joint and extend to cover the side walls of the wall column mechanism and the upper surface of the floor structure, ensuring that the entire area where leakage may occur is effectively protected, avoiding the risk of leakage due to partial uncovering, and extending to cover the side walls of the wall column mechanism and the upper surface of the floor structure, which can prevent moisture from diffusing from the expansion joint to the surrounding structure, reducing the scope of leakage and the degree of damage.
[0014] Furthermore, the gutter is sloped to facilitate drainage, allowing rainwater or other accumulated water to flow quickly along the slope, reducing the residence time in the gutter, reducing the risk of accumulated water overflowing, reducing the soaking of the gutter by accumulated water, and reducing the possibility of leakage in the gutter due to long-term water accumulation, thereby protecting the building structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural diagram of the utility model;
[0016] Figure 2 It is a structural diagram of the present utility model. DETAILED DESCRIPTION
[0017] The figure marks in the drawings of the specification include: floor structure 1, expansion joint 2, wall column structure 3, gutter 4, expansion bolt 5, concrete anti-ridge 6, water-stop steel plate 7, waterproof mortar layer 8, waterproof reinforcement layer 9, waterproof layer 10, foam rod 11, steel bar 12, and sealing paste 13.
[0018] Example 1 is basically as shown in the attached Figure 1-2 As shown: it includes a wall column structure 3, a floor structure 1 is provided at the lower end of the wall column structure 3, and steel bars 12 are provided in both the floor structure 1 and the wall column structure 3. The steel bars 12 are vertically arranged, and expansion joints 2 are provided between the floor structures 1. A special-shaped water-stop steel plate 7 is provided in the expansion joint 2. Both ends of the special-shaped water-stop steel plate 7 are placed in the floor structure 1, which can effectively prevent moisture from penetrating through the expansion joint 2, reduce the risk of leakage, and improve the waterproof performance of the building. At the same time, when the floor structure 1 undergoes expansion and contraction deformation due to temperature changes, loads and other factors, it can adapt to the deformation and avoid structural damage caused by deformation; the set special-shaped water-stop steel plate 7 is a special-shaped galvanized water-stop steel plate 7, and its two ends are inclined upward. When the floor structure 1 undergoes expansion and contraction deformation, the inclined end can better follow the deformation movement, reduce the stress concentration between the water-stop steel plate 7 and the concrete, and thus reduce the risk of damage caused by deformation.
[0019] Concrete anti-water sills are provided on both floor structures 1 near the expansion joint 2 at the upper end of the floor structure 1, which effectively prevent water from flowing to the expansion joint 2, reduce the possibility of water penetrating through the expansion joint 2, improve the overall waterproof performance of the floor, and avoid water accumulation in the weak parts of the expansion joint 2. The anti-water sills are disconnected from the expansion joint 2, and the risk of the anti-water sills being torn by stress is also avoided.
[0020] A foam rod 11 is provided at the upper end of the waterstop steel plate 7 to fill the expansion joint 2, which can reduce the stress generated by the expansion joint 2 during the deformation process, play a buffering and protective role for the waterstop steel plate 7 and the surrounding structure, and reduce the risk of damage caused by stress concentration. In addition, the foam rod 11 is used to separate the waterstop steel plate 7 and the polyurethane sealant 13, so that the polyurethane sealant 13 is only affected by the force of the floor slab. The sealant 13 is less likely to be pulled and damaged when subjected to force in two directions than when subjected to force in three directions, thereby extending the effective life of the sealant 13.
[0021] A sealing paste 13 is provided at the upper end of the foam rod 11. The sealing paste 13 is filled to the same level as the upper surface of the concrete anti-water sill to minimize moisture penetration. At the same time, the sealing paste 13 has certain flexibility and elasticity, and can expand and contract with the deformation of the expansion joint 2 to maintain a good sealing state.
[0022] A waterproof mortar layer 8 with rounded corners is provided at the connection between the wall column structure 3 and the concrete anti-water sill to make the stress distribution at the connection more uniform and reduce the risk of cracking. The waterproof reinforcement layer 9 and the waterproof layer 10 are covered on the expansion joint 2 and extended to cover the side walls of the wall column mechanism and the upper surface of the floor structure 1, ensuring that the entire area where leakage may occur is effectively protected, avoiding the risk of leakage caused by local uncoveredness, and extending to cover the side walls of the wall column mechanism and the upper surface of the floor structure 1, which can prevent moisture from diffusing from the expansion joint 2 to the surrounding structure and reduce the scope of leakage and the degree of damage.
[0023] A gutter 4 is provided on the lower end surface of the floor structure 1 near the expansion joint 2. The gutter 4 is fixedly connected to the floor structure 1 and is sloped for easy drainage, thereby reducing the soaking of the gutter 4 by accumulated water and the possibility of leakage of the gutter 4 due to long-term accumulation of water, thereby protecting the building structure.
[0024] During construction, a special-shaped galvanized water-stop steel plate 7 is installed at the expansion joint 2, and its upward inclined end is firmly installed. Then, the floor concrete is poured, and a concrete anti-water sill is poured at the upper end of the floor structure 1 near the expansion joint 2. Foam rods 11 are filled at the upper end of the water-stop steel plate 7, and then sealing paste 13 is poured until it is flush with the upper surface of the concrete anti-water sill. A rounded waterproof mortar layer 8 is applied at the connection between the wall column structure 3 and the concrete anti-water sill. Subsequently, a waterproof reinforcement layer 9 and a waterproof layer 10 are laid in the expansion joint 2 and the surrounding area to cover the side walls of the wall column mechanism and the upper surface of the floor structure 1; finally, a sloped gutter 4 is installed below the expansion joint 2.
[0025] After a period of use and observation, the expansion joint 2 structure effectively prevents water penetration, without leakage or water accumulation. The expansion joint 2 is stable under temperature changes and building deformation, without structural damage. The gutter 4 drains smoothly without water accumulation or leakage, and the overall waterproof performance is good, improving the quality and service life of the building.
[0026] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It is clear to those skilled in the art that various changes, modifications, substitutions, and variations of these embodiments may be made without departing from the principles and spirit of the present invention, and these changes and modifications still fall within the scope of protection of the present invention.
Claims
1. A novel expansion joint structure adjacent to a wall column, characterized by: It includes a wall column structure, a floor structure is provided at the lower end of the wall column structure, and expansion joints are provided between the floor structures; a special-shaped water-stop steel plate is provided in the expansion joint, and both ends of the special-shaped water-stop steel plate are placed in the floor structure; a waterproof reinforcement layer and a waterproof layer are provided on the expansion joint to cover the expansion joint; a gutter is provided on the lower end surface of the floor structure near the expansion joint position, and the gutter is fixedly connected to the floor structure.
2. A novel expansion joint structure adjacent to a wall column according to claim 1, characterized in that: The special-shaped water-stop steel plate is a special-shaped galvanized water-stop steel plate, and both ends of the special-shaped water-stop steel plate are tilted upward.
3. The novel expansion joint structure adjacent to a wall column according to claim 1, characterized in that: Concrete anti-water sills are arranged on the two floor structures at the upper ends of the floor structures close to the expansion joints.
4. The novel expansion joint structure adjacent to a wall column according to claim 1, characterized in that: A foam rod is provided at the upper end of the water-stop steel plate to fill the expansion joint.
5. The novel expansion joint structure adjacent to a wall column according to claim 4 is characterized in that: The upper end of the foam rod is provided with sealing paste, and the sealing paste is filled until it is flush with the upper surface of the concrete water return sill.
6. The novel expansion joint structure adjacent to a wall column according to claim 1, characterized in that: A waterproof mortar layer with rounded corners is provided at the connection between the wall column structure and the concrete anti-water sill.
7. The novel expansion joint structure adjacent to a wall column according to claim 1, characterized in that: The waterproof reinforcement layer and the waterproof layer cover the expansion joint and extend to cover the side walls of the wall column mechanism and the upper surface of the floor structure.
8. The novel expansion joint structure adjacent to a wall column according to claim 1, characterized in that: The novel expansion joint structure adjacent to a wall column according to claim 1 is characterized in that the gutter is arranged in a slope.