Hot-rolled toothed steel plate
By hot-rolling multiple rows of teeth on the surface of the steel plate, the problems of heavy welding workload, difficult quality control and poor fatigue resistance in the connection between steel components and concrete are solved, achieving the effect of efficient connection and reducing steel consumption.
Patent Information
- Application Number
- CN202511008753.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-22
- Publication Date
- 2025-10-17
AI Technical Summary
When existing steel components are connected to concrete, there are problems such as large welding workload, difficult to control welding quality, poor fatigue resistance and large amount of steel used.
Multiple rows of tooth blocks are integrally formed on the surface of the steel plate through a hot rolling process. The tooth blocks are arranged in the transverse and longitudinal directions, staggered or aligned, with an angle between 0° and 90°, replacing traditional welded bolt connections.
It improves the coordinated stress-bearing performance of steel plates and concrete structures, reduces welding workload, improves welding quality and fatigue resistance, and reduces steel consumption.
Smart Images
Figure CN120797894A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of steel structure material, in particular to a hot-rolled toothed steel plate. BACKGROUND
[0002] In various projects, steel-concrete composite structures or connections between steel members and concrete members are often used. In order to ensure the collaborative work of steel members and concrete, the conventional method is to weld studs or other connecting members on the surface of the steel member. Although this method is simple, it also has many problems, such as large welding workload, difficult welding quality control, poor fatigue resistance, etc. At the same time, in order to meet the size requirements of the studs and the requirements of the protective layer, the thickness of the concrete wrapped around the steel member needs to be significantly increased, which leads to the reduction of the cross-sectional size of the steel member. In order to ensure that the steel member has sufficient cross-sectional moment of inertia, the wall thickness of the steel member needs to be increased, which in turn significantly increases the amount of steel used. SUMMARY
[0003] The present application aims to overcome the defects of the prior art and provide a hot-rolled toothed steel plate that solves the problems of large welding workload, difficult welding quality control, poor fatigue resistance, and large amount of steel used in the welding of studs on existing steel plates.
[0004] The technical solution to achieve the above-mentioned purpose is:
[0005] The present application provides a hot-rolled toothed steel plate, the surface of which is integrally formed with multiple rows of tooth blocks arranged in the transverse direction by hot rolling, and the tooth blocks in the same row are arranged at intervals.
[0006] Further improvement of the hot-rolled toothed steel plate of the present application is that the tooth blocks in the same row are arranged along the longitudinal direction of the steel plate.
[0007] Further improvement of the hot-rolled toothed steel plate of the present application is that the two adjacent rows of tooth blocks are arranged staggered or aligned with each other.
[0008] Further improvement of the hot-rolled toothed steel plate of the present application is that the two rows of tooth blocks are arranged staggered or aligned with each other.
[0009] Further improvement of the hot-rolled toothed steel plate of the present application is that the included angle between the tooth blocks and the surface of the steel plate is greater than 0° and less than or equal to 90°.
[0010] Further improvement of the hot-rolled toothed steel plate of the present application is that the number of tooth blocks in the two adjacent rows is unequal or equal.
[0011] The hot-rolled toothed steel plate of the present application has the following beneficial effects:
[0012] The toothed steel plate is formed by hot rolling process, and the tooth block is formed on the surface of the steel plate, which can replace the connecting piece such as the stud welded on the surface of the steel plate in the prior art, and the tooth block can form a cooperative stress mechanism between the steel plate and the concrete structure connected thereto, can effectively resist the normal lifting and tangential bidirectional sliding of the concrete and the surface of the steel plate, has better stress performance, and can solve the problems of large work load, difficult welding quality control and poor fatigue resistance of the stud welding by hot rolling integration. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 is a top view of the hot-rolled toothed steel plate of the present application.
[0014] Figure 2 is a 1-1 sectional view in Figure 1
[0015] Figure 3 is a 2-2 sectional view in Figure 1
[0016] Figure 4 is an enlarged schematic view of a tooth block in Figure 1
[0017] Figure 5 is a flowchart of the manufacturing method of the hot-rolled toothed steel plate of the present application. DETAILED DESCRIPTION
[0018] The present application will be further described below in combination with the drawings and specific embodiments.
[0019] Referring to Figure 1 , the present application provides a hot-rolled toothed steel plate, which is used to solve the problems such as large welding work load, difficult welding quality control and poor fatigue resistance of the connecting piece such as the stud welded on the surface of the steel plate in the prior art. The present application forms a certain number of steel teeth on the surface of the steel material by hot rolling, replaces the stud or other connecting piece, can effectively solve the problems of the connecting piece such as the stud welded, and the hot-rolled toothed steel plate is convenient to manufacture, simple and easy to realize. The hot-rolled toothed steel plate of the present application will be described below in combination with the drawings.
[0020] Referring to Figure 1 , a top view of the hot-rolled toothed steel plate of the present application is shown. Referring to Figure 2 , a 1-1 sectional view in Figure 1 is shown. The structure of the hot-rolled toothed steel plate of the present application will be described below in combination with Figure 1 and Figure 2 .
[0021] As Figure 1 and Figure 2 As shown, the surface of the hot-rolled toothed steel plate 21 of the present invention is integrally formed with multiple rows of tooth blocks 22 arranged in the transverse direction through hot rolling, and the tooth blocks 22 in the same row are arranged at intervals.
[0022] like Figure 1 As shown, the transverse direction is the length direction of the steel plate 21, and the longitudinal direction is the width direction of the steel plate 21. Multiple rows of tooth blocks 22 are arranged at intervals along the length direction of the steel plate 21, and each row of tooth blocks 22 can be arranged at equal intervals or at unequal intervals.
[0023] Furthermore, if Figure 3 As shown, the tooth blocks 22 in the same row are arranged along the longitudinal direction of the steel plate 21, wherein the tooth blocks 22 in the same row can be arranged at equal intervals or at unequal intervals.
[0024] In a specific embodiment of the present invention, Figure 1 As shown, two adjacent rows of tooth blocks 22 are staggered or aligned with each other.
[0025] Furthermore, the spacing between the first row of tooth blocks 22 and the second row of tooth blocks 22 is aligned, thereby achieving an effect of mutually staggering the tooth blocks 22 in two adjacent rows.
[0026] In a specific embodiment of the present invention, the two separated rows of tooth blocks 22 are staggered or aligned with each other.
[0027] Furthermore, the two rows of tooth blocks 22 spaced one row apart can be aligned with each other, that is, the arrangement of the two rows of tooth blocks 22 located on both sides of a row of tooth blocks 22 is consistent.
[0028] Alternatively, two rows of tooth blocks 22 spaced two or more rows apart may be aligned with each other.
[0029] Furthermore, the number of tooth blocks 22 in two adjacent rows is different. In this way, the tooth blocks 22 in two adjacent rows can be staggered with each other.
[0030] In a specific embodiment of the present invention, Figure 4 As shown, the angle a between the tooth block 22 and the surface of the steel plate 21 is greater than 0° and less than or equal to 90°.
[0031] In a specific embodiment of the present invention, the angle a between the tooth block 22 and the surface of the steel plate 21 is greater than 0° and less than 90°.
[0032] The tooth block 22 is arranged in an inclined shape, and has an inner bevel 221 and an outer bevel 222. The angle a between the inner bevel 221 and the surface of the steel plate 21 is an acute angle, and the angle a is preferably between 30° and 60°, and the best selected angle a is 40°, 45°, 50°, etc.
[0033] In one embodiment of the present application, as shown in Figure 4 The thickness of the tooth block 22 at the end connected to the surface of the steel plate 21 is greater than the thickness of the tooth block 22 at the end away from the surface of the steel plate 21.
[0034] Further, the thickness of the tooth block 22 gradually decreases from the surface of the steel plate 21 to the top end of the tooth block 22.
[0035] Still further, the top of the tooth block 22 forms a pointed end.
[0036] Yet further, the distance between the top of the tooth block 22 and the surface of the steel plate 21 is less than the thickness of the steel plate 21.
[0037] The shape, size, spacing, and arrangement of the tooth blocks 22 formed on the hot-rolled toothed steel plate of the present application can be designed according to actual force requirements. When the length of the tooth block 22 is longer, it can be better anchored in the concrete structure, improving the connection strength between the concrete structure and the steel plate. The tooth block 22 is arranged in an inclined manner, so that the distance between the top end of the tooth block 22 and the surface of the steel plate 21 is less than the length of the tooth block 22. Compared with the tooth block 22 arranged perpendicular to the surface of the steel plate 21, the thickness of the steel plate with concrete coating can be effectively reduced, thus solving the problem of the thickness of the steel member with concrete coating in the prior art.
[0038] The gaps between the tooth blocks 22 are provided in the transverse and longitudinal directions, so that the concrete can be in good contact with the surface of the steel plate 21, the concrete can fully wrap the tooth block 22, the connection strength between the steel plate and the concrete structure is improved, and the normal lifting and tangential bidirectional sliding of the concrete and the steel plate surface can be well resisted, and the stress performance is stable.
[0039] The present application also provides a manufacturing method of a hot-rolled toothed steel plate, which will be described below.
[0040] As shown in Figure 5 The manufacturing method of the present application comprises the following steps:
[0041] Step S11 is performed to manufacture a hot-rolled roller according to the design scheme of the tooth block. The manufactured hot-rolled roller has corresponding grooves formed according to the design scheme of the tooth block; then step S12 is performed.
[0042] Step S12 is performed to roll the steel plate using the manufactured hot-rolled roller, so as to obtain a steel plate with tooth blocks on the surface.
[0043] Further, when rolling the steel plate, the steel plate is first heated to a set temperature, such as 1200-1250°C; then the steel plate blank is rolled in multiple passes using the hot-rolled roller to form a steel plate with a desired thickness.
[0044] Further, a row of grooves on the hot rolling roller is selected as the initial rolling position, and a mark is set at the selected row of grooves, so that the hot rolling roller can align the first tooth block set at the end of the steel plate, and the hot rolling roller can roll the steel plate in multiple passes, and tooth blocks are formed on the surface of the steel plate after rolling.
[0045] The above detailed description of the present application is made in combination with the embodiments of the drawings, and those of ordinary skill in the art can make various changes to the present application according to the above description. Therefore, some details in the embodiments should not constitute a limitation on the present application, and the scope of protection of the present application will be defined by the appended claims.
Claims
1. A hot-rolled toothed steel plate, characterized in that: The surface of the steel plate is integrally formed with a plurality of rows of tooth blocks arranged in a transverse direction through hot rolling, and the tooth blocks in the same row are arranged at intervals.
2. The hot-rolled toothed steel plate according to claim 1, wherein: The tooth blocks in the same row are arranged along the longitudinal direction of the steel plate.
3. The hot-rolled toothed steel plate according to claim 1, wherein: Two adjacent rows of tooth blocks are staggered or aligned with each other.
4. The hot-rolled toothed steel plate according to claim 1, wherein: The two rows of tooth blocks are staggered or aligned with each other.
5. The hot-rolled toothed steel plate according to claim 1, wherein: The angle between the tooth block and the surface of the steel plate is greater than 0° and less than or equal to 90°.
6. The hot-rolled toothed steel plate according to claim 1, wherein: The number of tooth blocks in two adjacent rows is unequal or equal.