Column side floor kerf joint reinforcing structure
By setting up reinforced structures on the column edges of the industrial factory floor, including silo split joints, shrink joints, polystyrene boards, polyurethane sealing mud and steel bar grids, the problem of irregular cracks in the floor is solved and the durability and aesthetics of the floor are improved.
Patent Information
- Application Number
- CN202421339349.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-12
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-06-12
AI Technical Summary
Irregular cracks are prone to occur during construction of industrial factory floors, which affects the aesthetics and service life of the floor.
The column edge floor cutting joint node reinforces the structure, including steel columns, column bottom cover, wear-resistant floor, silo split joints and shrink joints. By setting the concrete shrinkage stress of the partition joint and shrink joint, the compactness between the column bottom and the wear-resistant floor is strengthened by setting the siloed joint and the shrink joint, and a reinforced bar grid is installed in the wear-resistant floor to improve crack resistance.
It effectively solves the problem of irregular cracks in the floor, improves the durability and service life of the floor, and maintains the aesthetics of the floor.
Smart Images
Figure CN222810373U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of construction, and in particular to a column edge floor cutting node reinforcement structure. Background Art
[0002] In the current industrial plant construction, the quality and stability of the floor, as an important infrastructure for carrying heavy equipment and daily production activities, are of vital importance. Traditional industrial plant floors mostly use large-area, ultra-long concrete structures. While this structure brings high bearing capacity, it also faces the problem of cracks caused by concrete shrinkage and ambient temperature changes.
[0003] To solve this problem, the industry generally adopts the compartment method, which divides the entire floor into several independent compartment sections by setting construction joints during the floor pouring process. The length of each compartment section is strictly controlled within 40m to ensure that the concrete can shrink evenly during the hardening process and reduce stress concentration and cracks caused by excessive length. In addition, the interval between compartment pouring is at least 7 days to ensure that the first poured concrete is fully hardened before the subsequent pouring, thereby reducing the shrinkage difference between the new and old concrete.
[0004] During the process of pouring in compartments, the setting of expansion joints is another key technical point. Expansion joints are mainly located at the joints of the jump compartments, and their purpose is to adapt to the thermal expansion and contraction of concrete when the temperature changes. Especially in seasons with high temperatures, concrete is prone to internal stress due to thermal expansion. The setting of expansion joints can provide sufficient deformation space between concrete slabs, effectively reducing cracks and deformation of the floor.
[0005] In addition to expansion joints, contraction joints are also an important measure to prevent cracking caused by concrete shrinkage. Contraction joints are set every 4-6 meters, mainly between floor concrete slabs, to provide a certain degree of expansion and contraction when the temperature is low, to prevent cracks in the concrete due to shrinkage. Contraction joints are usually set in seasons with low temperatures to ensure that the concrete can fully shrink during the hardening process without generating excessive internal stress.
[0006] In summary, compartment construction and the setting of expansion joints and contraction joints are key technical measures to prevent cracks and deformation in industrial plant floor construction. However, the relevant technologies and methods currently on the market still have certain limitations and room for improvement. Therefore, this application aims to provide a new industrial plant floor construction method to further improve the quality and stability of the floor. Utility Model Content
[0007] In order to overcome the shortcomings of the prior art, the present application provides a column edge floor cutting node reinforcement structure, which solves the problem of irregular cracks in the floor, avoids affecting the aesthetics of the floor, and improves the durability and service life of the floor.
[0008] The technical means adopted by the utility model to solve its technical problems are: a column edge floor cutting node reinforcement structure, the improvement of which is that it includes a steel column, a column bottom foot, a wear-resistant floor, a partition seam and a contraction joint, the column bottom foot is arranged at the bottom of the steel column, the wear-resistant floor is surrounded by the column bottom foot, a steel grid is arranged in the wear-resistant floor, the partition seam is arranged between the column bottom foot and the wear-resistant floor, the lower part is filled with polystyrene board, the top is filled with polyurethane sealing putty, and the contraction joint is arranged in the wear-resistant floor.
[0009] The steel column in the above technical solution is an I-beam. The neutral axis parallel to the upper and lower flange plates in the cross section of the steel column is the strong axis, and the neutral axis perpendicular to the upper and lower flange plates is the weak axis.
[0010] The column foot package described in the above technical solution is a concrete structure, the centroid of the plane of the column foot package coincides with the centroid of the cross section of the steel column, the bottom of the column foot package is located on the top surface of the foundation, and the top is higher than the wear-resistant floor surface.
[0011] The strength grade of the column bottom foot in the above technical solution is C30, and the column bottom foot is 800 mm long along the strong axis direction of the steel column and 600 mm wide along the weak axis direction of the steel column on the plane.
[0012] The wear-resistant floor described in the above technical solution includes, from bottom to top, a plain soil layer, a crushed stone layer, a PE film and a fine stone concrete surface layer.
[0013] The transverse steel bars of the steel grid in the above technical solution are parallel to the strong axis direction of the steel column, the longitudinal steel bars are parallel to the weak axis direction of the steel column, and the centroid of the steel grid coincides with the centroid of the cross section of the steel column.
[0014] The steel mesh described in the above technical solution adopts a single-layer bidirectional steel bar.
[0015] In the above technical solution, additional reinforcement is arranged on the upper part of the steel grid, and the two diagonals of the square enclosed by the additional reinforcement coincide with the strong axis and the weak axis of the steel column respectively, the centroid of the square coincides with the centroid of the cross section of the steel column, and the outermost reinforcement of the additional reinforcement is 50 mm away from the shrinkage joint.
[0016] The width of the contraction joint in the above technical solution is 4-6 mm, and the depth is 1 / 4-1 / 3 of the fine stone concrete surface layer.
[0017] The thickness of the polystyrene board in the above technical solution is 10 mm, and the thickness of the polyurethane sealing glue is 20 mm.
[0018] The beneficial effects of the utility model are: the stress generated during the shrinkage of concrete is released by utilizing compartment joints and shrinkage joints, while the tightness between the column bottom foot and the wear-resistant floor is strengthened by using polystyrene boards and polyurethane sealing putty, and a steel grid is arranged in the concrete surface layer of the wear-resistant floor to increase the crack resistance of the concrete surface layer, thereby solving the problem of irregular cracks in the wear-resistant floor and avoiding affecting the aesthetics of the floor, while also improving the durability and service life of the floor. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 A cross-sectional view of a column edge floor cutting node reinforcement structure shown in an embodiment of the utility model;
[0020] Figure 2 A schematic diagram of a steel column structure shown in an embodiment of the utility model;
[0021] Figure 3 A top view of a column edge floor cutting node reinforcement structure shown in an embodiment of the utility model;
[0022] Figure 4 This is a schematic diagram of the reinforcing rib structure shown in an embodiment of the utility model. DETAILED DESCRIPTION
[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0024] The following will clearly and completely describe the concept, specific structure and technical effects of the utility model in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the utility model. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the creation of the utility model can be combined interchangeably without conflicting with each other.
[0025] like Figure 1As shown, the utility model provides a column edge floor cutting node reinforcement structure, including a steel column 1, a column bottom foot 2, a wear-resistant floor 3, a partition seam 4 and a contraction joint 5, the column bottom foot 2 is arranged at the bottom of the steel column 1, the wear-resistant floor 3 is arranged around the column bottom foot 2, a steel grid 35 is arranged in the wear-resistant floor 3, the partition seam 4 is arranged between the column bottom foot 2 and the wear-resistant floor 3, the lower part of the partition seam is filled with polystyrene board, and the top is filled with polyurethane sealing putty, and the contraction joint 5 is arranged in the wear-resistant floor 3.
[0026] In a possible implementation, the polystyrene board has a thickness of 10 mm, and the polyurethane sealing glue has a thickness of 20 mm.
[0027] Through the above embodiments, the column edge floor cutting node reinforcement structure provided by the present application utilizes the partition joints 4 and the contraction joints 5 to release the stress generated during the shrinkage of the concrete, and at the same time, the tightness between the column bottom foot 2 and the wear-resistant floor 3 is strengthened by the polystyrene board and the polyurethane sealing putty.
[0028] In one possible implementation, Figure 2 As shown, the steel column 1 is an I-beam with a cross-sectional size of H600×400×8×16 mm. The neutral axis parallel to the upper and lower flange plates in the cross section of the steel column 1 is the strong axis (X axis), and the neutral axis perpendicular to the upper and lower flange plates is the weak axis (Y axis).
[0029] In a possible implementation, the column foot 2 is a concrete structure with a strength grade of C30. The column foot 2 is 800 mm long along the strong axis of the steel column 1 and 600 mm wide along the weak axis of the steel column in the plane. The centroid of the plane of the column foot 2 coincides with the centroid of the cross section of the steel column 1. The bottom of the column foot 2 is located on the top surface of the foundation, and the top is 150 mm higher than the surface of the wear-resistant floor 3.
[0030] After the construction of the column bottom foot 2 is completed, the wear-resistant floor 3 is constructed. In a possible implementation method, Figure 1 As shown, the wear-resistant floor 3 includes, from bottom to top:
[0031] ① The plain soil layer 31 is compacted, the compaction coefficient is not less than 0.94, and the characteristic value of the foundation bearing capacity is not less than 100 KPa;
[0032] ② Crushed stone layer 32: a crushed stone layer 32 is laid on the compacted plain soil layer 31. The height of the crushed stone layer 32 is 300 mm. The crushed stone should be reasonably graded and have a particle size of 10 to 15 mm. The laying should be suitable for layered compaction. The compaction coefficient should be not less than 0.95. The surface is poured with M2.5 mixed mortar and ground flat without exposing the crushed stone.
[0033] ③ PE film 33, the thickness of the PE film is 0.3 mm;
[0034] ④ Fine stone concrete surface layer 34, the thickness of the fine stone concrete surface layer 34 is 250mm, and the strength grade is C30. After the concrete strength reaches the standard, a 2-3mm thick metal aggregate wear-resistant surface layer is spread and smoothed as it is applied.
[0035] When the fine stone concrete surface layer 34 of the wear-resistant floor 3 reaches 25%-30% of the design strength, a cutting machine is used to cut it to form a contraction joint 5.
[0036] In a possible implementation, the width of the contraction joint 5 is 4-6 mm, and the depth is 1 / 4-1 / 3 of the fine stone concrete surface layer 34 .
[0037] In one possible implementation, Figure 3 As shown, the vertices of the square formed by the contraction joint 5 are all located on the x-axis and y-axis of the cross section of the steel column 1, and the distance between the vertex and the centroid plane of the cross section of the steel column 1 is 1150 mm; the contraction joint 5 between the steel columns 1 is cut from the vertices of the square formed by the contraction joints of the column sides along the x-axis and y-axis of the cross section of the steel column.
[0038] In one possible implementation, Figure 4 As shown, the steel grid 35 adopts φ4@150mm single-layer bidirectional steel bars, the transverse steel bars of the steel grid 35 are parallel to the strong axis direction of the steel column 1, the longitudinal steel bars are parallel to the weak axis direction of the steel column 1, and the centroid of the steel grid 35 coincides with the cross-sectional centroid of the steel column 1.
[0039] In one possible implementation, see Figure 4 As shown, 3φ4@100mm additional reinforcements 36 are arranged on the upper part of the steel grid 35, and the two diagonals of the square enclosed by the additional reinforcements 36 coincide with the strong axis X and the weak axis Y of the steel column 1 respectively, and the centroid of the square coincides with the centroid of the cross section of the steel column 1, and the distance between the outermost reinforcement of the additional reinforcement 36 and the contraction joint 5 is 50mm.
[0040] The beneficial effects of the utility model are: the stress generated during the shrinkage of concrete is released by utilizing compartment joints and contraction joints, and the tightness between the column bottom foot and the wear-resistant floor is strengthened by using polystyrene boards and polyurethane sealing putty, and a steel grid and additional reinforcement are arranged in the concrete surface layer of the wear-resistant floor, thereby increasing the crack resistance of the concrete surface layer, solving the problem of irregular cracks in the wear-resistant floor, avoiding affecting the aesthetics of the floor, and improving the durability and service life of the floor.
[0041] The above is a specific description of the preferred implementation of the utility model, but the invention of the utility model is not limited to the described embodiments. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the utility model. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.
Claims
1. A column edge floor cutting node reinforcement structure, characterized in that: It includes a steel column, a column foot, a wear-resistant floor, a partition joint and a contraction joint, the column foot is arranged at the bottom of the steel column, the wear-resistant floor is arranged outside the column foot, a steel grid is arranged in the wear-resistant floor, the partition joint is arranged between the column foot and the wear-resistant floor, the lower part of the partition joint is filled with polystyrene board, the top is filled with polyurethane sealing putty, and the contraction joint is arranged in the wear-resistant floor.
2. The column edge floor cutting node reinforcement structure according to claim 1 is characterized in that: The steel column is an I-beam, and the neutral axis in the cross section of the steel column parallel to the upper and lower flange plates is the strong axis, and the neutral axis perpendicular to the upper and lower flange plates is the weak axis.
3. The column edge floor cutting node reinforcement structure according to claim 1 is characterized in that: The column foot is a concrete structure, the centroid of the plane of the column foot coincides with the centroid of the cross section of the steel column, the bottom of the column foot is located on the top surface of the foundation, and the top is higher than the wear-resistant floor surface.
4. The column edge floor cutting node reinforcement structure according to claim 3 is characterized in that: The strength grade of the column bottom foot is C30. The column bottom foot is 800 mm long along the strong axis of the steel column and 600 mm wide along the weak axis of the steel column on the plane.
5. The column edge floor cutting node reinforcement structure according to claim 1 is characterized in that: The wear-resistant floor comprises, from bottom to top, a plain soil layer, a crushed stone layer, a PE film and a fine stone concrete surface layer.
6. The column edge floor cutting node reinforcement structure according to claim 1 is characterized in that: The transverse steel bars of the steel grid are parallel to the strong axis direction of the steel column, the longitudinal steel bars are parallel to the weak axis direction of the steel column, and the centroid of the steel grid coincides with the centroid of the cross section of the steel column.
7. The column edge floor cutting node reinforcement structure according to claim 1 is characterized in that: The steel bar grid adopts single-layer bidirectional steel bars.
8. The column edge floor cutting node reinforcement structure according to claim 1 is characterized in that: Additional reinforcement is arranged on the upper part of the reinforcement grid, and the two diagonals of the square enclosed by the additional reinforcement coincide with the strong axis and the weak axis of the steel column respectively, the centroid of the square coincides with the centroid of the cross section of the steel column, and the outermost reinforcement of the additional reinforcement is 50 mm away from the contraction joint.
9. The column edge floor cutting node reinforcement structure according to claim 5 is characterized in that: The width of the shrinkage joint is 4-6 mm, and the depth is 1 / 4-1 / 3 of the fine stone concrete surface layer.
10. The column edge floor cutting node reinforcement structure according to claim 1 is characterized in that: The thickness of the polystyrene board is 10 mm, and the thickness of the polyurethane sealing glue is 20 mm.