Hot-rolled ribbed steel plate for SC composite structure and manufacturing method for hot-rolled ribbed steel plate

Abstract

The present invention relates to a hot-rolled ribbed steel plate for an SC composite structure and a manufacturing method for the hot-rolled ribbed steel plate. A plurality of ribs protruding outwards are provided on the surface of the steel plate, and the steel plate and the ribs are integrally formed by means of hot rolling. In the present invention, the hot-rolled ribbed steel plate is integrally formed by means of hot rolling, and the plurality of ribs protruding outwards are provided on the surface of the steel plate, enhancing the tangential and normal bond strength between the steel plate and concrete. The presence of these ribs can improve the tangential shear resistance and normal anti-peel-off bonding performance on the surface of the steel plate; and the ribbed steel plate is integrally formed by means of hot rolling, achieving simple and convenient manufacturing, and solving the problems of extensive welding workload and high manufacturing costs in existing stud and steel bar framework operation.

Description

Hot-rolled ribbed steel plate for SC composite structure and manufacturing method thereof TECHNICAL FIELD

[0001] The present application relates to the technical field of structural engineering, in particular to a hot-rolled ribbed steel plate for SC composite structure and a manufacturing method thereof. BACKGROUND

[0002] In the existing SRC steel-concrete composite structure, studs are usually welded on the surface of the steel plate to increase the tangential shear bond force between the steel plate and the poured concrete, and the steel reinforcement framework outside the steel plate is used to ensure the normal (out-of-plane) anti-falling bond force between the steel plate and the concrete. When the size of the steel plate is large, the number of studs to be set is also large, which makes the stud welding work amount large and the manufacturing troublesome, and the shear capacity of the stud cannot be completely calculated. As shown in FIG. 12, the steel-concrete composite beam includes beam main reinforcement 11, beam stirrup 12, steel plate 13, stud 14, patch plate 15 and concrete structure 16. The beam main reinforcement 11 is arranged on the upper and lower layers of the composite beam, and a plurality of beam stirrups 12 are arranged outside the beam main reinforcement 11. The steel plate 13 is arranged between the two layers of beam main reinforcement 11, and the side of the steel plate 13 close to the corresponding beam main reinforcement 11 is provided with a stud 14. The steel plate 13 is provided with two plates arranged in an upper and lower manner, and the two steel plates 13 are supported and connected by a plurality of patch plates 15, and then a beam formwork is supported to pour concrete to form a concrete structure 16. The concrete structure 16 wraps the beam main reinforcement 11, the beam stirrup 12, the steel plate 13, the stud 14 and the patch plate 15. The arrangement of the beam main reinforcement and the beam stirrup can improve the structural strength of the concrete cover of the composite structure. However, such construction method has many steps and is inconvenient for construction. SUMMARY

[0003] The present application aims to overcome the defects of the prior art and provide a hot-rolled ribbed steel plate for SC composite structure. The ribs added on the surface of the steel plate can solve the tangential bond force problem between the steel plate and the concrete and the normal (out-of-plane) bond force problem between the steel plate and the concrete, thereby eliminating the studs on the surface of the steel plate and the steel reinforcement framework outside the steel plate, saving the amount of steel and reducing the processing cost.

[0004] The technical solution to achieve the above-mentioned purpose is:

[0005] The present application provides a hot-rolled ribbed steel plate for SC composite structure. The surface of the steel plate is provided with a plurality of outwardly protruding ribs. The steel plate and the ribs are integrally formed by hot rolling.

[0006] The ribbed steel plate is integrally formed by hot rolling, a plurality of ribs protruding outward are arranged on the surface of the steel plate, the combination between the steel plate and the concrete can be improved, the longitudinal shearing effect of the surface of the steel plate can be improved due to the ribs, the ribbed steel plate is integrally formed by hot rolling, and the manufacturing is simple and convenient, and the problems of large welding operation amount and manufacturing difficulty of the existing bolt operation are solved. The ribbed steel plate can also provide a normal hoop effect for the composite structure, so that the main reinforcement and stirrup structures are not arranged on the outer side of the steel plate, and the construction is simple.

[0007] The further improvement of the hot-rolled ribbed steel plate for the SC composite structure is that the ribs are arranged in an inclined manner.

[0008] The further improvement of the hot-rolled ribbed steel plate for the SC composite structure is that the ribs are arranged in an inclined manner.

[0009] The further improvement of the hot-rolled ribbed steel plate for the SC composite structure is that the ribs are arranged in an inclined manner.

[0010] The further improvement of the hot-rolled ribbed steel plate for the SC composite structure is that the ribs are arranged in an inclined manner.

[0011] The further improvement of the hot-rolled ribbed steel plate for the SC composite structure is that the ribs are arranged in an inclined manner.

[0012] The further improvement of the hot-rolled ribbed steel plate for the SC composite structure is that the ribs are arranged in an inclined manner.

[0013] The further improvement of the hot-rolled ribbed steel plate for the SC composite structure is that the ribs are arranged in an inclined manner.

[0014] The further improvement of the hot-rolled ribbed steel plate for the SC composite structure is that the ribs are arranged in an inclined manner.

[0015] The application also provides a manufacturing method of the hot-rolled ribbed steel plate for the SC composite structure, characterized by comprising the following steps:

[0016] The hot rolling roller is manufactured according to the style of the rib.

[0017] When the steel plate is hot-rolled, the last hot continuous rolling of the steel plate is performed by using the hot rolling roller, and then the hot-rolled steel plate with ribs on the surface is obtained. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 is a top view of the first embodiment of the hot-rolled ribbed steel plate for the SC composite structure.

[0019] Fig. 2 is a partial enlarged view of a side view of a first embodiment of the hot-rolled ribbed steel plate for SC composite structure according to the present application.

[0020] Fig. 3 is a partial enlarged view of a side view of a second embodiment of the hot-rolled ribbed steel plate for SC composite structure according to the present application.

[0021] Fig. 4 is a plan view of a third embodiment of the hot-rolled ribbed steel plate for SC composite structure according to the present application.

[0022] Fig. 5 is a partial enlarged view of a side view of the third embodiment of the hot-rolled ribbed steel plate for SC composite structure according to the present application.

[0023] Fig. 6 is a side view of a rib of a fourth embodiment of the hot-rolled ribbed steel plate for SC composite structure according to the present application.

[0024] Fig. 7 is a plan view of a fifth embodiment of the hot-rolled ribbed steel plate for SC composite structure according to the present application.

[0025] Fig. 8 is a partial enlarged view of a side view of the fifth embodiment of the hot-rolled ribbed steel plate for SC composite structure according to the present application.

[0026] Fig. 9 is a partial enlarged view of a side view of a sixth embodiment of the hot-rolled ribbed steel plate for SC composite structure according to the present application.

[0027] Fig. 10 is a partial enlarged view of a side view of a seventh embodiment of the hot-rolled ribbed steel plate for SC composite structure according to the present application.

[0028] Fig. 11 is a sectional view of the hot-rolled ribbed steel plate for SC composite structure according to the present application applied to a composite beam.

[0029] Fig. 12 is a sectional view of a steel-concrete composite beam according to the prior art. DETAILED DESCRIPTION

[0030] The present application will be further described below in conjunction with the drawings and specific embodiments.

[0031] Referring to Fig. 1, the present application provides a hot-rolled ribbed steel plate for SC composite structure and a manufacturing method thereof. The surface of the hot-rolled ribbed steel plate is integrally formed with a plurality of ribs by hot-rolling. The ribs project outward from the surface of the steel plate. The ribs improve the tangential and normal adhesive forces between the steel plate and the concrete. The ribs also improve the tangential shear resistance and the normal anti-falling adhesive action of the concrete on the surface of the steel plate, so that the composite structure does not need to be provided with stirrups or steel bars on the outside of the steel plate. The hot-rolled ribbed steel plate of the present application is simple and convenient to manufacture, and solves the problems of large welding work and high manufacturing cost in the existing operation of providing studs and steel bar framework on the steel plate. The hot-rolled ribbed steel plate for SC composite structure and the manufacturing method thereof according to the present application will be described below in conjunction with the drawings.

[0032] Referring to Fig. 1, a top view of a first embodiment of the hot-rolled ribbed steel plate for SC composite structure according to the present application is shown. Referring to Fig. 2, a partially enlarged view of a side view of the first embodiment of the hot-rolled ribbed steel plate for SC composite structure according to the present application is shown. The hot-rolled ribbed steel plate for SC composite structure according to the present application will be described below in conjunction with Figs. 1 and 2.

[0033] As shown in Figs. 1 and 2, the hot-rolled ribbed steel plate 21 for SC composite structure according to the present application is provided with a plurality of ribs 22 protruding outward from the surface of the steel plate 21, and the steel plate 21 and the ribs 22 are integrally formed by hot-rolling.

[0034] In the first embodiment shown in Figs. 1 and 2, the ribs 22 are arranged in an inclined manner.

[0035] Preferably, the ribs 22 are arranged on the surface of the steel plate 21 at an inclined angle, and the ribs 22 are arranged at intervals along the arrangement direction, the inclined angle of the ribs 22 being between 30° and 60°, and preferably being 45°.

[0036] Further, the side surface of the ribs 22 is an inclined surface, and the angle A between the side surface and the surface of the steel plate 21 is between 30° and 60°, and preferably is 45°. The cross section of the ribs 22 is a parallelogram.

[0037] In the first embodiment, the thickness of the steel plate 21 is 20 mm, the width of the ribs 22 is 2 mm, the height of the ribs 22 is 2 mm, the length of the ribs 22 is 35 mm or 36 mm, and the interval between the adjacent two ribs 22 is 14 mm.

[0038] In one embodiment of the present application, the ribs 22 are arranged at intervals along the length direction of the steel plate 21.

[0039] As shown in Fig. 1, in the first embodiment, the ribs 22 are arranged in a plurality of rows, each row of ribs 22 is arranged along the length direction of the steel plate 21, and the adjacent two rows of ribs are arranged in a mirror image manner.

[0040] As shown in Fig. 2, in the second embodiment, the ribs 22 are arranged in a vertical manner, and the ribs 22 are arranged perpendicularly to the surface of the steel plate 21. The cross section of the ribs 22 is a square.

[0041] In the second embodiment, the thickness of the steel plate 21 is 20 mm, the width of the ribs 22 is 2 mm, the height of the ribs 22 is 2 mm, the length of the ribs 22 is 35 mm or 36 mm, and the interval between the adjacent two ribs 22 is 14 mm.

[0042] In one embodiment of the present application, as shown in Figs. 1 and 4, the adjacent two rows of ribs 22 are arranged in a herringbone manner.

[0043] As shown in Figs. 4 and 5, in the third embodiment, the cross section of the rib 22 is trapezoidal.

[0044] In the third embodiment, the thickness of the steel plate 21 is 20 mm, the top width of the rib 22 is 2 mm, the bottom width is 4.31 mm, the height is 2 mm, the length is 35 mm or 36 mm, and the interval between two adjacent ribs 22 is 14 mm.

[0045] As shown in Fig. 6, a schematic view of the structure of the rib in the fourth embodiment is shown, in which the cross section of the rib 22 is trapezoidal, the top width is 2 mm, the bottom width is 6.62 mm, and the height is 4 mm. The two end surfaces 223 of the rib 22 are arc surfaces. The rib 22 comprises a bottom surface 221 and a top surface 222, and the bottom surface 221 is connected with the surface of the steel plate 21.

[0046] In one specific embodiment of the present application, as shown in Figs. 7 and 8, the ribs 22 are arranged in a crosswise and lengthwise staggered manner.

[0047] The ribs 22 are crosswise and lengthwise staggered on the surface of the steel plate 21 to form a plurality of grids. The length of the crosswise arranged rib 22 is adapted to the length of the steel plate 21, and the width of the lengthwise arranged rib 22 is adapted to the width of the steel plate 21.

[0048] In the fifth embodiment, the thickness of the steel plate 21 is 20 mm, the width of the rib 22 is 2 mm, the height is 4 mm, and the interval between two adjacent ribs 22 is 14 mm.

[0049] As shown in Fig. 8, in the sixth embodiment, the thickness of the steel plate 21 is 20 mm, the width of the rib 22 is 4 mm, the height is 10 mm, and the interval between two adjacent ribs 22 is 28 mm.

[0050] As shown in Fig. 9, in the seventh embodiment, the thickness of the steel plate 21 is 20 mm, the width of the rib 22 is 2 mm, the height is 12 mm, and the interval between two adjacent ribs 22 is 14 mm.

[0051] In one specific embodiment of the present application, the cross section of the rib 22 is square, rectangular, parallelogram or trapezoidal.

[0052] Further, the rib 22 is arranged on the upper surface of the steel plate 21.

[0053] Still further, the thickness of the steel plate 21 is greater than the thickness of the rib 22.

[0054] The SC combined structure of the present application refers to a steel-concrete combined structure, in which a steel structure is arranged inside a concrete structure, such as a steel-concrete combined beam, a steel-concrete combined column, a steel-concrete combined plate, etc.

[0055] As shown in Fig. 11, the ribbed steel plate 21 of the present application is applied to a steel-concrete composite beam, the steel plate 21 is provided with two pieces, which are arranged oppositely, the surfaces of the two steel plates 21 with the ribs 22 are arranged oppositely, a plurality of support bars 23 are supported and connected between the two steel plates 21, then the formwork of the beam is arranged outside the steel plate 21 to pour concrete to form a concrete structure 24 wrapping the steel plate 21 and the support bars 23, and the steel-concrete composite beam is formed after the formwork is removed. In the steel-concrete composite beam, the ribs 22 arranged on the surface of the steel plate 21 improve the tangential shear resistance and normal anti-falling adhesion of the concrete on the surface of the steel plate, and the arrangement of the steel bars and stirrups in the existing steel-concrete composite beam is also saved.

[0056] The present application also provides a manufacturing method of the hot-rolled ribbed steel plate for SC composite structure.

[0057] The manufacturing method of the present application comprises the following steps:

[0058] The hot-rolling roller is manufactured according to the style of the rib.

[0059] In the hot-rolling of the steel plate, the hot-rolling roller is used for the last pass of the hot-continuous rolling to obtain the hot-rolled steel plate with the ribs on the surface.

[0060] In the manufacturing of the hot-rolling roller, the recesses with the shape and size matching the ribs are formed on the surface of the hot-rolling roller.

[0061] In the hot-rolling of the steel plate, the hot-rolling roller is arranged at the last pass of the hot-rolling equipment, which can be six-pass, and the ribbed steel plate is obtained through the hot-rolling.

[0062] The present application is described in detail in the above embodiments combined with the drawings, and those skilled in the art can make various changes to the present application according to the above description. Therefore, some details in the embodiments should not be regarded as the limitation of the present application, and the protection scope of the present application is defined by the appended claims.

Claims

1. A hot-rolled ribbed steel sheet for SC composite structures, characterized by, The surface of the steel plate is provided with a plurality of ribs protruding outward, and the steel plate and the ribs are integrally formed by hot rolling.

2. The hot-rolled ribbed steel sheet for SC combination structure as claimed in claim 1, wherein The ribs are arranged in an inclined manner.

3. The hot-rolled ribbed steel sheet for SC combination structure as claimed in claim 1, wherein The ribs are arranged in a spaced manner along the length direction of the steel plate.

4. The hot-rolled ribbed steel sheet for SC combination structure as claimed in claim 1, wherein Two adjacent rows of ribs are arranged in a splayed manner.

5. The hot-rolled ribbed steel sheet for SC combination structure as recited in claim 1, wherein The ribs are arranged in a staggered manner along the horizontal and vertical directions.

6. The hot-rolled ribbed steel sheet for SC combination structure as claimed in claim 1, wherein The cross section of the ribs is square, rectangular, parallelogram or trapezoidal.

7. The hot-rolled ribbed steel sheet for SC combination structure as claimed in claim 1, wherein The end surface of the ribs is arc-shaped.

8. The hot-rolled ribbed steel sheet for SC combination structure as claimed in claim 1, wherein The ribs are arranged on the upper surface of the steel plate.

9. The hot-rolled ribbed steel sheet for SC combination structure as claimed in claim 1, wherein The thickness of the steel plate is greater than the thickness of the ribs.

10. A method of producing a hot-rolled ribbed steel sheet for an SC composite structure according to claim 1, characterized by, The method comprises the following steps: According to the pattern of the ribs, a hot rolling roller is made; When the steel plate is hot rolled, the hot rolling roller is used for the last hot continuous rolling of the steel plate, so as to obtain a hot rolled steel plate with ribs on the surface.

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