Steel structure assembled wall body anti-cracking waterproof structure

Abstract

The present application relates to the technical field of building construction, in particular to a steel structure assembly type wall body anti-cracking and waterproof structure. The steel structure assembly type wall body anti-cracking and waterproof structure comprises a wall body and a steel column made of an I-beam, a metal buckle capable of sliding along the longitudinal direction is arranged on the side wall of the flange plate of the steel column, a limiting sliding groove is arranged on the side wall opposite to the steel column of the wall body, the metal buckle is slidingly inserted and clamped in the limiting sliding groove, a rubber pad is arranged on the contact surface opposite to the limiting sliding groove of the metal buckle, the wall body is composed of a plurality of wall panel units, and a pull assembly is arranged between the wall panel units. Through the movement of the metal buckle, the requirement for the layer height can be reduced, thereby improving the construction efficiency; in the long-term use stage, the unique design of the connecting structure can effectively absorb the thermal deformation stress generated due to the temperature change, allow multi-direction displacement compensation, and significantly reduce the cracking risk of the joint due to the deformation incoordination.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically a steel structure prefabricated wall structure for crack prevention and waterproofing. Background Technology

[0002] With the rapid development of industrialized construction, steel structure prefabricated building systems have been widely used due to their advantages such as high construction efficiency, energy saving, and environmental protection. These buildings often use lightweight wall panels such as ALC and GRC panels as the enclosure structure. However, this system has two major technical challenges: First, during on-site installation, due to construction errors and floor height limitations, precise alignment between the wall and the steel structure is often difficult. Traditional rigid connection methods have poor tolerance for error, are inconvenient to adjust, and affect construction efficiency. Second, during the service phase, there are significant differences in the physical properties (especially the coefficient of linear expansion) between the steel structure and the prefabricated wall panel materials. Under temperature changes, these materials are prone to deformation inconsistencies, generating additional stress and leading to cracking at the joints. Traditional wall sealing often uses sealant, but the sealant is prone to aging and cracking. Furthermore, under dynamic loads such as earthquakes or wind loads, rigid connection nodes cannot adapt to inter-story displacement, easily causing micro-cracks and forming seepage channels, affecting the overall waterproof performance and durability of the wall. Therefore, there is an urgent need for a wall connection structure that can simplify installation, tolerate errors, effectively coordinate deformation, and improve waterproof durability. Summary of the Invention

[0003] The present invention aims to solve the above problems, thereby providing a crack-proof and waterproof steel prefabricated wall structure that prevents cracking at joints.

[0004] The technical solution adopted by the present invention to solve the aforementioned problem is as follows: A prefabricated steel wall structure for crack prevention and waterproofing includes a wall and steel columns made of I-beams. The sidewalls of the steel columns are provided with metal clips that can slide longitudinally. The sidewalls of the wall opposite to the steel columns are provided with limiting grooves. The metal clips are slidably inserted and engaged in the limiting grooves. Rubber pads are provided on the contact surfaces of the metal clips and the limiting grooves. The wall is composed of several wall panel units, and tie-down components are provided between the wall panel units.

[0005] The present invention, which adopts the above technical solution, has the following prominent features compared with the prior art: During the construction and installation phase, this sliding connection structure provides excellent tolerance and adjustment capabilities, reducing installation accuracy requirements. It is particularly suitable for construction conditions with floor height restrictions. By moving the metal clips, the floor height requirement can be reduced, thereby improving construction efficiency. During long-term use, the unique design of the connection structure enables it to effectively absorb thermal deformation stress caused by temperature changes, allowing for multi-directional displacement compensation. This significantly reduces the risk of cracking at the joints due to deformation inconsistencies. This characteristic allows the wall to better adapt to structural deformation under wind loads or seismic action, thereby greatly improving the wall's crack resistance and waterproof durability, overcoming the inherent defects of traditional rigid connection methods.

[0006] As a preferred embodiment, a further technical solution of the present invention is: Furthermore, through grooves are provided on both sides of the steel column wing plate sidewall along the height direction. Multiple metal buckles are provided in an Ω shape. Several metal buckles are provided on the steel column wing plate sidewall along the height direction. The inner shape of the limiting slide groove is adapted to the metal buckle. Locking screws are fixed on both sides of the back of the buckle. The screws pass through the through groove and are fitted with locking nuts. The Ω-shaped metal buckle, combined with the through groove and locking screw nut design, helps to achieve flexible adjustment and reliable fixation of the connection position, providing convenience for the installation process. When the floor height is limited, the metal buckle is located at the bottom of the through groove. After the limiting slide groove of the wall is locked on the metal buckle, the locking screw is controlled to drive the metal buckle to move upward and set at intervals in the limiting slide groove. Then, it is locked by the locking nut, which can reduce the floor height requirement.

[0007] Furthermore, the tie assembly includes symmetrically opened limiting slots on opposite surfaces of the wall panel units, Ω-shaped tie strips symmetrically arranged between the wall panel units, rubber pads on the surface of the tie strips, welded and fixed between the back sides of the tie strips, and the tie strips slidingly engaging in the opposite limiting slots. The gaps between the wall panel units are filled with expanding sealant, and the outside of the gaps is covered with sealing tape. This allows for slight displacement between the wall panel units while maintaining overall connectivity. Combined with the internally filled expanding sealant and the external sealing tape, multiple sealing protections are formed, which helps to improve the integrity and impermeability of the joint area.

[0008] Furthermore, the sealing tape has a hydrophobic coating on its surface, which reduces the adhesion and penetration of moisture and has a positive effect on extending the service life of the sealing tape.

[0009] Furthermore, a V-shaped drainage groove is provided in the middle of the sealing strip along the height direction, which can guide the liquid flowing down the wall and help to draw moisture away from the joint area.

[0010] Furthermore, fiber optic sensors are pre-embedded within the sealing strip, enabling real-time monitoring and data collection of deformation at the wall panel joints, which helps to achieve early diagnosis and warning of the wall's health status.

[0011] Furthermore, the wall surface is coated with a photocatalytic coating, which helps to decompose surface pollutants and maintain the clean appearance of the wall.

[0012] Furthermore, barbed water channels are installed at the bottom of the wall, with a hydrophobic coating inside. These channels can collect and guide out any small amount of water that may infiltrate, which is beneficial for enhancing the moisture resistance of the wall base. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the steel column structure according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the wall panel unit structure according to an embodiment of the present invention; Figure 3 This is a top view of the structure of an embodiment of the present invention; The markings in the diagram are: 1. Wall; 2. Steel column; 3. Metal clip; 4. Limiting groove; 5. Locking screw; 6. Through groove; 7. Tie strip; 8. Sealing tape; 9. Expanding sealant. Detailed Implementation

[0014] The present invention will be further described below with reference to embodiments, which are intended only to provide a better understanding of the invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0015] A prefabricated steel wall structure for crack prevention and waterproofing includes a wall 1 and steel columns 2 made of I-beams. Metal clips 3 that can slide longitudinally are provided on the sidewalls of the flanges of the steel columns 2. Limiting grooves 4 are provided on the sidewalls of the wall 1 opposite to the steel columns 2. The metal clips 3 are slidably inserted and engaged in the limiting grooves 4. Rubber pads are provided on the contact surfaces of the metal clips 3 and the limiting grooves 4. The wall 1 is composed of several wall panel units, and tie components are provided between the wall panel units.

[0016] Furthermore, through grooves 6 are provided on both sides of the sidewall of the steel column 2 wing plate along the height direction. Multiple metal clips 3 are provided in an Ω-shape. Several metal clips 3 are provided on the sidewall of the steel column 2 wing plate along the height direction. The inner shape of the limiting slide groove 4 is adapted to the metal clip 3. Locking screws 5 are fixed on both sides of the back of the clips. The screws pass through the through grooves 6 and are fitted with locking nuts. The Ω-shaped metal clips 3, combined with the through grooves 6 and locking screws 5 and nuts, facilitate flexible adjustment and reliable fixing of the connection position. The installation process is convenient. When the floor height is limited, the metal clip 3 is located at the bottom of the through groove 6. After the limiting slide groove 4 of the wall 1 is locked on the metal clip 3, the metal clip 3 is moved upward by controlling the locking screw 5 and is set at intervals in the limiting slide groove 4. Then, it is locked by locking the nut. This can reduce the floor height requirement. After the locking nut is tightened, flexible sealing materials such as polyurethane sealant and silicone sealant should be used to fill and seal the openings of the through groove 6 on both sides of the wing plate of the steel column 2 to ensure the waterproof, fireproof and airtight performance of the joint.

[0017] Furthermore, the tie assembly includes symmetrically opened limiting slots on opposite surfaces of the wall panel units, and Ω-shaped tie strips 7 symmetrically arranged between the wall panel units. The tie strips 7 can be set in several segments according to the floor height. Rubber pads are provided on the surface of the tie strips 7. The back sides of the tie strips 7 are welded and fixed together. The tie strips 7 slide and engage in the corresponding limiting slots. The gaps between the wall panel units are filled with expanding sealant 9, and the outside of the gaps is covered with sealing tape 8. This allows for slight displacement between the wall panel units while maintaining overall connectivity. Together with the internally filled expanding sealant 9 and the external sealing tape 8, multiple sealing protections are formed, which helps to improve the integrity and impermeability of the joint area.

[0018] Furthermore, the surface of the sealing strip 8 is provided with a hydrophobic coating, which can reduce the adhesion and penetration of moisture and has a positive effect on extending the service life of the sealing strip 8.

[0019] Furthermore, a V-shaped drainage groove is provided in the middle of the surface of the sealing strip 8 along the height direction, which can guide the liquid flowing down the wall and help to draw water away from the joint area.

[0020] Furthermore, fiber optic sensors are pre-embedded in the sealing strip 8, which can monitor and collect data on the deformation status at the joints of the wall panels in real time, helping to achieve early diagnosis and warning of the health status of the wall 1.

[0021] Furthermore, the surface of wall 1 is coated with a photocatalytic coating, which helps to decompose surface pollutants and maintain the clean appearance of wall 1.

[0022] Furthermore, a barbed water channel is provided at the bottom of the wall 1, and the water channel is covered with a hydrophobic coating, which can collect and guide the discharge of any small amount of water that may intrude, thus enhancing the moisture-proof ability of the base of the wall 1.

[0023] During the construction and installation phase, to address the challenges of floor height limitations and construction errors, installers first pre-placed the Ω-shaped metal clip 3 at the bottom of the through groove 6 of the steel column 2 wing plate. After aligning the limiting slide groove 4 of the wall panel unit with the clip, they pushed the locking screw 5 upwards to make it act as a support rod, causing the metal clip 3 to slide along the through groove 6 to the design elevation. Then, they tightened the locking nut to achieve reliable fixation. This adjustable connection method significantly improved the installation tolerance and efficiency. After completing the mechanical fixation, flexible sealing material was used to fill and seal the through groove 6 to restore the integrity of the steel column 2. During long-term use, when temperature changes cause incoordination between the steel and the wall panel deformation, the rubber pads on the contact surfaces of the metal clips 3 and the limiting grooves 4, as well as the rubber pads on the surface of the tie strips 7, can effectively absorb thermal deformation stress. At the same time, the expansion sealant 9 in the sliding fit gap of the Ω-shaped tie strips 7 within the limiting grooves allows for multi-directional displacement compensation between wall panel units, thereby significantly reducing the risk of joint cracking. Meanwhile, the sealing strip 8 with a hydrophobic coating and V-shaped drainage grooves forms an external water-conducting barrier, working in conjunction with the barbed drainage grooves at the bottom of the wall to form a multi-layered dynamic waterproofing system. This effectively overcomes the defects of traditional sealant application, which is prone to aging and cracking. It can maintain waterproof continuity even when the structure is deformed by earthquakes or wind loads, thus comprehensively improving the durability of the wall 1.

[0024] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. All equivalent changes made based on the description and drawings of the present invention are included within the scope of the present invention.

Claims

1. A prefabricated steel wall structure for crack prevention and waterproofing, comprising a wall and steel columns made of I-beams, characterized in that: The steel column has metal clips that can slide longitudinally on the side wall of the wing plate. The wall has a limiting groove on the side wall opposite to the steel column. The metal clips slide into and engage in the limiting groove. Rubber pads are provided on the contact surfaces of the metal clips and the limiting groove. The wall is composed of several wall panel units. Tie components are provided between the wall panel units. The steel column wing plate sidewall has through grooves on both sides along the height direction. Multiple metal buckles are provided in an Ω shape. There are several metal buckles on the steel column wing plate sidewall along the height direction. The inner shape of the limiting slide groove is adapted to the metal buckle. Locking screws are fixed on both sides of the back of the buckle. The screws pass through the through groove and are fitted with locking nuts. The tie assembly includes symmetrically opened limiting slots on opposite surfaces of the wall panel units, Ω-shaped tie strips symmetrically arranged between the wall panel units, rubber pads on the surface of the tie strips, welding and fixing the back sides of the tie strips together, and the tie strips slidingly engaging in the opposite limiting slots. The gaps between the wall panel units are filled with expanding sealant, and the outside of the gaps is covered with sealing tape.

2. The steel structure prefabricated wall anti-crack and waterproof structure according to claim 1, characterized in that: The sealing strip has a hydrophobic coating on its surface.

3. The steel structure prefabricated wall anti-crack and waterproof structure according to claim 1, characterized in that: A V-shaped drainage groove is provided in the middle of the sealing strip along the height direction.

4. The steel structure prefabricated wall anti-crack and waterproof structure according to claim 1, characterized in that: An optical fiber sensor is embedded inside the sealing strip.

5. The steel structure prefabricated wall anti-crack and waterproof structure according to claim 1, characterized in that: The wall surface is coated with a photocatalytic coating.

6. The steel structure prefabricated wall anti-crack and waterproof structure according to claim 1, characterized in that: The bottom of the wall is equipped with barbed water channels, and the inside of the water channels is covered with a hydrophobic coating.

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