A type of emery floor edge column and inner column perimeter cut joint structure

Abstract

This utility model relates to the field of building engineering technology, and in particular discloses a slit structure for the perimeter of edge columns and inner columns in a corundum floor. It includes a corundum casting layer, edge columns and inner columns disposed on the corundum casting layer, and slits surrounding the edge columns and inner columns and located on the corundum casting layer. The slits are recessed from the top surface of the corundum casting layer, and the cross-section of the slits is an inverted trapezoid. The width of the slit at the end closest to the top surface of the corundum casting layer is greater than the width at the end furthest from the top surface of the corundum casting layer. This utility model, through the inverted trapezoidal slit design, can guide the release of stress in the corundum casting layer along the slits, reducing cracking around the columns. The slit size, wider at the top and narrower at the bottom, facilitates the removal of debris during construction, while also enhancing adhesion with subsequent filling materials, improving the overall crack resistance and durability of the corundum casting layer, and extending the service life of the corundum floor.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and in particular discloses a slit structure for the outer perimeter of the edge column and inner column of the diamond sand floor. Background Technology

[0002] In the construction of corundum-coated concrete floors, stress concentration easily occurs around the perimeter of edge and inner columns due to temperature changes and load effects, leading to cracking of the corundum-coated concrete layer. Traditional cuts are mostly straight-walled rectangles, resulting in uneven stress distribution and easy local damage; the lack of drainage design at the bottom allows water seepage to erode the base layer and column foundation; unreasonable cut direction and spacing make it difficult to adapt to complex stresses; and the lack of crack-resistant reinforcement and sealing measures makes them prone to wear and leakage during expansion and contraction. At the same time, the right-angle design of single cuts or connecting points cannot distribute stress in all directions, seriously affecting the durability and structural stability of the corundum-coated concrete layer. There is an urgent need to optimize the cut structure to solve the above problems. Utility Model Content

[0003] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a slit structure for the outer perimeter of the edge column and inner column of the diamond sand floor.

[0004] To achieve the above objectives, this utility model provides a slit structure for the perimeter of the side columns and inner columns of a corundum-coated ground, comprising a corundum-coated layer, side columns and inner columns disposed on the corundum-coated layer, and a slit surrounding the side columns and inner columns and located on the corundum-coated layer; the slit is recessed from the top surface of the corundum-coated layer, the cross-section of the slit is an inverted trapezoid, and the width of the end of the slit near the top surface of the corundum-coated layer is greater than the width of the end of the slit away from the top surface of the corundum-coated layer.

[0005] In this emery aggregate flooring, the inverted trapezoidal cross-section of the cut joints between the outer and inner columns effectively guides stress release, preventing cracking of the emery aggregate layer due to temperature changes and loads. It also reduces stress concentration around the outer and inner columns. The wider top and narrower bottom of the cut ensures sufficient space for stress release, reduces the risk of debris accumulation, and enhances the bonding stability between the cut and the cast-in-place layer, reducing future maintenance costs. The layout surrounding the columns effectively mitigates deformation differences between the columns and the ground, improving overall structural durability and extending the floor's lifespan. This design is suitable for heavy-load or temperature-sensitive locations such as industrial plants and warehouses.

[0006] Furthermore, the bottom of the cut is arc-shaped and smoothly transitions to the sidewall of the cut.

[0007] The rounded bottom and smooth transition to the sidewalls eliminate sharp corners and stress dead zones within the cut, dispersing the stress generated during the expansion and contraction of the corundum casting layer. This prevents the cut from widening or the corundum casting layer from being damaged due to stress concentration at right angles. Simultaneously, this design facilitates debris removal and fluid flow, reducing the risk of cut blockage and extending the service life of the corundum casting layer.

[0008] Furthermore, the bottom of the slit has an inclination for guiding the flow, the inclination being 5°-10°.

[0009] A 5°-10° guide slope can efficiently direct water or other fluids in the corundum casting layer to drain in a specific direction, preventing moisture from accumulating at the bottom of the cut. This not only prevents moisture penetration and erosion of the corundum casting layer base and column foundation, but also reduces cut damage caused by freeze-thaw cycles, improving the moisture resistance and durability of the corundum casting layer, making it especially suitable for humid environments.

[0010] Furthermore, the sidewall of the cut is provided with a guide vane, and the guide vane is streamlined in shape.

[0011] Streamlined guide vanes optimize fluid flow paths within the cut, reducing fluid resistance and accelerating drainage. Simultaneously, the vanes enhance the structural strength of the sidewalls, reducing the impact force on the sidewalls during the expansion and contraction of the corundum casting layer, and delaying cut wear. Their streamlined design also reduces debris adhesion, keeps the cut unobstructed, and improves overall flow efficiency.

[0012] Furthermore, the cut is obliquely set on the diamond abrasive casting layer, and the angle between its oblique direction and the central axis of the inner column or side column is 30°-60°.

[0013] The 30°-60° angle setting creates a reasonable angle between the cut and the column, better accommodating the oblique stress generated by temperature changes or loads in the corundum casting layer, dispersing concentrated stress around the column, and preventing radial or circumferential cracks in the corundum casting layer. This angle design also increases the alignment between the cut and the stress direction of the corundum casting layer, improving the deformation resistance of the corundum casting layer.

[0014] Furthermore, the height of the cut is 1 / 3 to 1 / 2 of the height of the diamond abrasive casting layer, and the width of the cut is 3-5 mm.

[0015] The slit height should be 1 / 3 to 1 / 2 of the height of the corundum cast layer. This ensures sufficient buffer space for expansion and contraction of the corundum cast layer without excessively weakening its structural strength. A width of 3-5mm satisfies expansion and contraction requirements while reducing the amount of dust and debris entering the slit, thus simplifying cleaning. This size combination balances the expansion and contraction buffering function with structural stability of the corundum cast layer, making it widely applicable.

[0016] Furthermore, the perimeter of the side columns and inner columns is provided with diagonal crack-resistant steel bars, which are connected to the steel reinforcement network of the corundum casting layer.

[0017] The diagonal anti-crack reinforcement is connected to the steel reinforcement network of the corundum cast-in-place layer, forming a three-dimensional reinforcement system. This system can effectively transfer and disperse the stress around the column, enhancing the crack resistance of the connection between the corundum cast-in-place layer and the column. The diagonal arrangement can specifically resist tensile and shear forces in different directions, preventing cracking of the corundum cast-in-place layer due to stress transfer from the column, and improving the overall load-bearing capacity and integrity of the structure.

[0018] Furthermore, an oil layer is provided on the inner wall of the cut, filling at least a portion of the depth of the cut, to seal against leakage and buffer the expansion and contraction stress of the diamond abrasive casting layer to prevent cracking.

[0019] The sealant layer filling the cut joints effectively seals the gaps, preventing moisture and dust from penetrating the base layer of the corundum casting and the column, thus preventing leakage. At the same time, the sealant has a certain degree of elasticity, which can deform when the corundum casting layer expands and contracts, buffering the expansion and contraction stress, reducing the mutual friction and compression between the corundum casting layers on both sides of the cut joint, preventing the corundum casting layer from cracking due to excessive stress, and extending the maintenance cycle.

[0020] Furthermore, the number of slits is set to multiple, and the multiple slits are arranged around the perimeter of the side column and the inner column, and the multiple slits form a conductive slit ring, and the connection between two connected slits in the slit ring is a circular arc transition.

[0021] Multiple slits form a conductive slit ring that can distribute stress around the column in all directions, making the stress on the surrounding diamond abrasive layer more uniform. The rounded transition at the connection point avoids stress concentration and prevents damage to the slits at the joint. The conductive design of the slit ring also facilitates overall drainage, improving the protection range and effectiveness of the diamond abrasive layer around the column, and enhancing crack resistance and waterproofing performance.

[0022] Furthermore, the distance between the cut and the center of the inner column's geometric feature is 200-300mm, and the distance between the cut and the center of the side column's geometric feature is 150-250mm.

[0023] The different spacing between the inner and outer columns is designed to accommodate the different stress characteristics of the two columns in the corundum-cast layer structure. The spacing of 200-300mm for the inner columns and 150-250mm for the outer columns ensures that the cut effectively disperses the stress around the column, without affecting the stability of the column due to being too close or reducing the crack resistance due to being too far, thus allowing the cut to play its precise role.

[0024] The beneficial effects of this utility model are as follows: The emery aggregate floor slit structure disperses stress through an inverted trapezoidal cross-section, eliminates stress dead angles with its arc-shaped bottom and smooth transition, improves drainage efficiency with a 5°-10° slope and streamlined guide vanes, and adapts to the stress direction of the emery aggregate cast layer with a 30°-60° angled setting. Slits with a height of 1 / 3-1 / 2 of the emery aggregate cast layer and a width of 3-5mm balance expansion and contraction and structural stability, while diagonal crack-resistant steel reinforcement enhances overall integrity. An oil-based sealant layer prevents leakage and buffers stress, and the conductive ring formed by multiple slits provides all-round protection around the columns. The precise spacing of 200-300mm (inner columns) and 150-250mm (edge ​​columns) adapts to the stress characteristics, effectively preventing cracking of the emery aggregate cast layer, improving durability, moisture resistance, and structural stability, and extending service life. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the outer perimeter cut joint structure of the edge column and inner column of the diamond sand floor according to this utility model;

[0026] Figure 2 This is a schematic diagram of the slit structure of this utility model;

[0027] Figure 3 This is a schematic diagram of the slit ring of this utility model;

[0028] Figure 4 This is a schematic diagram of the crack-resistant steel bar of this utility model.

[0029] The attached diagram includes the following reference numerals: 1. Emery casting layer; 2. Inner column; 3. Edge column; 4. Cut joint; 5. Guide plate; 6. Diagonal anti-crack reinforcement; 7. Ointment layer. Detailed Implementation

[0030] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0031] Please see Figures 1 to 4 As shown, the present invention discloses a slit structure for the perimeter of the side columns and inner columns of a corundum floor, comprising a corundum casting layer 1, side columns 3 and inner columns 2 disposed on the corundum casting layer 1, and a slit 4 surrounding the side columns 3 and inner columns 2 and located on the corundum casting layer 1; characterized in that: the slit 4 is recessed from the top surface of the corundum casting layer 1, the cross-section of the slit 4 is an inverted trapezoid, and the width of the end of the slit 4 near the top surface of the corundum casting layer 1 is greater than the width of the end of the slit 4 away from the top surface of the corundum casting layer 1.

[0032] During operation, the emery aggregate layer 1 will generate internal stress due to temperature changes and load effects. Stress concentration is easily formed around the perimeter of the side columns 3 and inner columns 2 due to material differences and constraint. The cut 4, through its layout surrounding the columns, provides a pre-set channel for stress release, guiding the internal stress to concentrate and release at the cut 4, preventing disordered stress diffusion that could lead to cracking of the aggregate layer. The inverted trapezoidal design of the cut 4's cross-section, with its wider top and narrower bottom, ensures sufficient space at the top to accommodate minor deformations caused by stress release, while the narrower bottom enhances the connection stability between the cut 4 and the aggregate layer 1, reducing the possibility of the cut 4 itself becoming a weak point in the structure. Simultaneously, during construction and use, the inverted trapezoidal structure facilitates the drainage of debris and water from the top, reducing erosion of the surrounding structure. Furthermore, when filling with material, it can form a tighter fit with the inner wall of the cut 4, further enhancing the overall structure's stress resistance and ensuring the structural integrity of the emery aggregate floor around the side columns 3 and inner columns 2.

[0033] Specifically, the bottom of the cut 4 is arc-shaped and smoothly transitions to the side wall of the cut 4.

[0034] During the cutting process, the angle and trajectory of the cutting tool are adjusted to create a rounded bottom at the cut 4, ensuring a smooth connection with the sidewalls. This rounded bottom alters the stress transmission path; when the diamond abrasive layer 1 expands or contracts, the stress is dispersed along the rounded surface to the sidewalls, rather than concentrating at the corners. This smooth transition design avoids abrupt stress changes caused by right angles, reducing the risk of breakage at the cut 4 under stress. Furthermore, the rounded structure facilitates deeper cleaning tools and easier removal of debris from the cut, maintaining its functionality.

[0035] Specifically, the bottom of the slit 4 has an inclination for guiding the flow, the inclination being 5°-10°.

[0036] When cutting slit 4, the cutting depth and angle are precisely controlled to create a 5°-10° slope at the bottom of slit 4. When water or other fluids from the corundum cast layer 1 enter slit 4, they will flow naturally along the slope under gravity, heading towards the pre-designated drainage outlet or low-lying area. This slope is neither too large, which would weaken the bottom structure of slit 4, nor too small, which would affect the flow rate. It efficiently guides the fluid out, preventing it from stagnating at the bottom of slit 4 and reducing the long-term erosion of the corundum cast layer 1 base layer and column foundation by the fluid.

[0037] Specifically, the sidewall of the cut 4 is provided with a guide plate 5, and the guide plate 5 is streamlined in shape.

[0038] After the slit 4 is cut, the prefabricated streamlined guide vane 5 is fixed to the side slit wall. The guide vane 5 is made of corrosion-resistant material, and its streamlined surface reduces the resistance to fluid flow within the slit 4, allowing the fluid to flow smoothly along its surface and accelerating drainage. Simultaneously, the guide vane 5 is tightly integrated with the side slit wall, enhancing its structural strength. When the corundum casting layer 1 expands or contracts, it can share the impact force on the side slit wall, reducing wear. Furthermore, the streamlined design reduces the attachment points of debris on the side slit wall, lowering the possibility of slit 4 becoming clogged.

[0039] Specifically, the cut 4 is obliquely arranged on the diamond abrasive casting layer 1, and the angle between its oblique direction and the central axis of the inner column 2 or the side column 3 is 30°-60°.

[0040] Based on the stress distribution characteristics of the corundum cast-in-place layer 1, the oblique angle of the cut 4 is planned before cutting, making it 30°-60° with the central axis of the column. When the corundum cast-in-place layer 1 generates oblique stress due to temperature changes or loads, the obliquely set cut 4 can form a reasonable angle with the stress direction, directly bearing and dispersing the stress, and avoiding stress accumulation around the column. This angle range, after mechanical calculation, can maximize the stress relief effect of the cut 4 on the oblique stress, while not affecting the overall bearing capacity of the corundum cast-in-place layer 1, effectively preventing the generation of radial or circumferential cracks.

[0041] Specifically, the height of the cut 4 is 1 / 3 to 1 / 2 of the height of the diamond abrasive casting layer 1, and the width of the cut 4 is 3-5 mm.

[0042] During construction, based on the actual thickness of the corundum casting layer 1, the height of the cut 4 is determined to be 1 / 3 to 1 / 2 of the height of the corundum casting layer 1, and the width is 3-5mm. This height allows for sufficient penetration into the corundum casting layer 1 to ensure its expansion and contraction restriction without compromising its structural integrity; the width, while meeting the normal expansion and contraction requirements of the corundum casting layer 1, prevents excessively large gaps that could reduce its load-bearing capacity. Strict dimensional accuracy is maintained during cutting to ensure that the cut 4 effectively guides the expansion and contraction of the corundum casting layer 1 while minimizing the entry of debris, thus maintaining the long-term functionality of the cut 4.

[0043] Specifically, the perimeter of the side column 3 and the inner column 2 is provided with diagonal crack-resistant steel bars 6, which are connected to the steel bar network of the corundum casting layer 1.

[0044] During the pouring of the emery aggregate layer 1, diagonal crack-resistant steel bars 6 are arranged around the column at the designed angle and welded or tied to the steel reinforcement network of the emery aggregate layer 1 to form an integrated load-bearing system. When the column is subjected to load or the emery aggregate layer 1 generates stress, the diagonal crack-resistant steel bars 6 can transfer the stress to the entire steel reinforcement network of the emery aggregate layer 1, avoiding stress concentration around the column. Their diagonal arrangement can specifically resist tensile and shear forces in different directions, working in conjunction with the cut joint 4 to further enhance the crack resistance of the connection between the emery aggregate layer 1 and the column, improving the overall structural stability.

[0045] Specifically, an oil layer 7 is provided on the inner wall of the cut 4, filling at least part of the depth of the cut 4, for sealing and preventing leakage and buffering the expansion and contraction stress of the diamond abrasive casting layer 1 to prevent cracking.

[0046] After the slit 4 is cut and cleaned, the sealant is filled into the inner wall of the slit 4, with a filling depth of at least a portion of the slit 4 depth. The sealant has good sealing properties, preventing external moisture and dust from contacting the base layer 1 of the corundum casting layer and the column, thus preventing leakage. When the corundum casting layer 1 expands or contracts, the sealant will elastically deform with the changes in the slit 4, absorbing and buffering the expansion and contraction stress, reducing direct friction and compression between the corundum casting layers 1 on both sides of the slit 4. At the same time, the sealant can also fill the tiny gaps within the slit 4, preventing stress concentration in localized areas, thereby preventing cracking of the corundum casting layer 1 and extending its service life.

[0047] Specifically, the number of slits 4 is set to multiple, and the multiple slits 4 are arranged around the perimeter of the side post 3 and the inner post 2, and the multiple slits 4 form a conductive slit 4 ring, and the connection between two connected slits 4 in the slit 4 ring is a circular arc transition.

[0048] During construction, multiple slits 4 are cut around the perimeter of the outer column 3 and the inner column 2, forming a ring of slits 4 that are interconnected. The connecting points are designed with rounded transitions. This ring of slits 4 completely surrounds the column. When stress occurs in the corundum cast-in-place layer 1 around the column, the stress can be dispersed through the multiple slits 4, preventing excessive stress on any single slit 4. The interconnected structure facilitates the flow of water accumulated in the corundum cast-in-place layer 1 within the ring of slits 4, allowing it to drain away and preventing water stagnation. The rounded transitions at the connecting points reduce stress concentration, ensuring the overall stability of the ring of slits 4 and enhancing the protective effect on the corundum cast-in-place layer 1 around the column.

[0049] Specifically, the distance between the cut 4 and the geometric feature center of the inner column 2 is 200-300mm, and the distance between the cut 4 and the geometric feature center of the side column 3 is 150-250mm.

[0050] Based on the stress differences between the inner column 2 and the outer column 3 within the emery aggregate layer 1 structure, the distance between the cut 4 and the center of the column is precisely set. The inner column 2 experiences relatively uniform stress, and a distance of 200-300mm ensures that the cut 4 effectively disperses stress while avoiding excessive distance affecting the load-bearing capacity of the emery aggregate layer 1 around the column. The outer column 3, being closer to the edge, experiences more complex stress, and a distance of 150-250mm allows for more timely stress absorption and dispersion. During construction, measurement and positioning ensure the accuracy of the distance, allowing the cut 4 to precisely act on the stress concentration area without interfering with the connection stability between the column and the emery aggregate layer 1, thus fully utilizing the crack-resistant function of the cut 4.

[0051] The working principle of this utility model is as follows: By setting a specific structure of slits 4 around the circumference of the corundum cast-in-place layer 1 of the side column 3 and the inner column 2, a synergistic system is formed by combining crack-resistant steel bars and the sealant layer 7. The slits 4 adopt an inverted trapezoidal cross section, an arc-shaped bottom, and an oblique arrangement, which precisely matches the stress direction generated by temperature changes and loads in the corundum cast-in-place layer 1, and can disperse the concentrated stress around the column, providing buffer space for the expansion and contraction of the corundum cast-in-place layer 1; the bottom slope and streamlined guide plate 5 accelerate drainage and prevent water from eroding the base layer, while the sealant layer 7 seals against leakage and further buffers expansion and contraction stress. The oblique crack-resistant steel bars 6 are connected to the steel bar network of the corundum cast-in-place layer 1 to enhance the overall crack resistance.

[0052] Multiple slits 4 form a continuous slit ring, which, through reasonable spacing (inner column 2 200-300mm, side column 3 150-250mm), completely surrounds the column. The circular transitions at the connecting points eliminate stress dead angles, achieving uniform stress distribution. The various structures work together to ensure the structural integrity and load-bearing capacity of the corundum cast-in-place layer 1, effectively preventing cracking, improving its durability and moisture resistance, and extending its service life. It is suitable for protective applications around columns in various corundum flooring systems.

[0053] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A slit structure for the perimeter of an edge column and an inner column in a corundum-coated concrete floor, comprising a corundum-coated concrete layer (1), an edge column (3) and an inner column (2) disposed on the corundum-coated concrete layer (1), and a slit (4) surrounding the edge column (3) and the inner column (2) and located on the corundum-coated concrete layer (1); characterized in that: The cut (4) is recessed from the top surface of the diamond abrasive casting layer (1). The cross-section of the cut (4) is an inverted trapezoid. The width of the end of the cut (4) near the top surface of the diamond abrasive casting layer (1) is greater than the width of the end of the cut (4) away from the top surface of the diamond abrasive casting layer (1).

2. A diamond floor edge post and inner post perimeter kerf construction according to claim 1 wherein: The bottom of the cut (4) is arc-shaped and smoothly transitions to the side wall of the cut (4).

3. A peripheral cut joint structure of a diamond floor edge post and inner post according to claim 1, characterized in that: The bottom of the cut (4) has an inclination for guiding the flow, the inclination being 5°-10°.

4. A peripheral cut joint construction for a diamond-surfaced edge column and inner column according to claim 1, wherein: The sidewall of the cut (4) is provided with a guide plate (5), and the guide plate (5) is streamlined in shape.

5. A peripheral cut joint construction for a diamond-surfaced edge column and inner column according to claim 1, wherein: The cut (4) is obliquely set on the diamond sand casting layer (1), and the angle between its oblique direction and the central axis of the inner column (2) or the side column (3) is 30°-60°.

6. A peripheral cut joint construction for a diamond-surfaced edge column and inner column according to claim 1, wherein: The height of the cut (4) is 1 / 3 to 1 / 2 of the height of the diamond abrasive casting layer (1), and the width of the cut (4) is 3-5 mm.

7. A peripheral cut joint construction for a diamond-surfaced edge column and inner column according to claim 1, wherein: The perimeter of the side column (3) and the inner column (2) is provided with diagonal anti-crack steel bars (6), which are connected to the steel reinforcement network of the corundum casting layer (1).

8. The slit structure between the outer and inner columns of a diamond-coated floor surface according to claim 1, characterized in that: The inner wall of the cut (4) is provided with an oil layer (7) that fills at least part of the depth of the cut (4) to seal against leakage and buffer the expansion and contraction stress of the diamond abrasive casting layer (1) to prevent cracking.

9. A peripheral cut joint construction for a diamond-surfaced edge column and inner column according to claim 1, wherein: The number of slits (4) is set to multiple, and the multiple slits (4) are arranged around the perimeter of the side column (3) and the inner column (2), and the multiple slits (4) form a conductive slit (4) ring, and the connection between two connected slits (4) in the slit (4) ring is a circular arc transition.

10. A peripheral cut joint construction for a diamond grit floor in a pillar and inner column according to claim 1, characterized in that: The distance between the cut (4) and the geometric feature center of the inner column (2) is 200-300mm, and the distance between the cut (4) and the geometric feature center of the side column (3) is 150-250mm.

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