Corrosion-resistant and bending-resistant steel structure

Abstract

The corrosion-resistant and bending-resistant steel structure comprises a steel body and a stand column, the steel body is I-shaped steel, the steel body is sleeved with a splicing shell used for fixing the steel body in a sliding mode, and the splicing shell is rectangular and fixedly connected with the stand column; a connecting frame used for enhancing the bending resistance of the profile steel body is arranged between the splicing shell and the profile steel body in a sleeved mode, an anti-torsion clamping piece is slidably inserted between the profile steel body and the connecting frame, and one end of the anti-torsion clamping piece is fixedly connected with the splicing shell. The structural steel has the effect of improving the bending strength and the torsional strength of the structural steel.

Description

Technical Field

[0001] This application relates to the technical field of bending-resistant steel profiles, and particularly to a corrosion-resistant bending-resistant steel structure. Background Art

[0002] I-beam is a long steel bar with an I-shaped cross-section. I-beams are divided into ordinary I-beams and light I-beams. Their cross-sectional shapes are reasonable, and the normal stress distribution of the stressed straight bar is uniform, with excellent load-bearing capacity.

[0003] Currently, the fixed size of the I-shaped steel is relatively fixed, and adjacent I-beams are supported by columns after connection. In actual engineering, if the columns supporting the I-beams undergo uneven settlement, the heights of the two ends of the I-beams will be inconsistent, causing the I-beams to be subjected to torsion and bending forces, which greatly tests the bending and torsion resistance of the steel structure. Summary of the Utility Model

[0004] In order to improve the bending and torsion resistance of the steel structure, this application provides a corrosion-resistant bending-resistant steel structure.

[0005] The corrosion-resistant bending-resistant steel structure provided by this application adopts the following technical solutions:

[0006] A corrosion-resistant bending-resistant steel structure includes a steel profile body and columns. The steel profile body is an I-beam. A splicing shell for fixing the steel profile body is slidably sleeved outside the steel profile body. The splicing shell is rectangular and fixedly connected to the columns. A connecting frame for enhancing the bending resistance of the steel profile body is sleeved between the splicing shell and the steel profile body. A torsion-resistant clip is slidably inserted between the steel profile body and the connecting frame, and one end of the torsion-resistant clip is fixedly connected to the splicing shell.

[0007] By adopting the above technical solutions, the steel profile body is supported by columns. When the columns settle or are affected by external forces, the splicing shell can effectively fix the steel profile body. The connecting frame sleeved between the splicing shell and the steel profile body enhances the bending resistance of the steel profile body. The setting of the torsion-resistant clip prevents the steel profile body from twisting relative to the splicing shell, further improving the torsion resistance of the steel profile body. In addition, if the steel profile body directly contacts the columns, there may be some gaps, and stress concentration will occur at the contact points at this time. The setting of the connecting plate can disperse the stress over a larger area, reducing the risk of local stress concentration.

[0008] Optionally, placing grooves for placing the torsion-resistant clips are opened at both ends of the steel profile body close to the splicing shell. The torsion-resistant clip is L-shaped, and the torsion-resistant clip is attached to the side wall of the placing groove and slidably matched with the side wall of the connecting frame.

[0009] By adopting the above technical solution, the torsion-resistant clip can better fit the side wall of the placement groove. At this time, when an external force acts on the profiled steel body, the torsion-resistant clip can resist the deformation torque of the profiled steel, thereby reducing the possibility of torsion of the profiled steel body. The profiled steel body is in sliding fit with the side wall of the connecting frame, and through a multi-layer connection structure, the torsion resistance of the profiled steel body is effectively improved.

[0010] Optionally, threaded holes are provided in the splicing shell, and the torsion-resistant clip is connected to the splicing shell by bolts.

[0011] By adopting the above technical solution, the torsion-resistant clip is connected to the splicing shell by bolts, enhancing the connection stability, facilitating installation, improving the reliability of the overall structure at the same time, and reducing the installation cost.

[0012] Optionally, convex blocks corresponding to the profiled steel body are provided on the inner side of the splicing shell, and the convex blocks abut against the inwardly concave side of the profiled steel body.

[0013] By adopting the above technical solution, the convex blocks provided on the inner side of the splicing shell can effectively abut against the inwardly concave side of the profiled steel body, thereby improving the positioning accuracy and stability of the profiled steel body in the splicing shell. At the same time, by thickening the convex blocks, the ability to resist the bending and torsion force of the profiled steel body is improved, thereby enhancing the bending resistance of the profiled steel body.

[0014] Optionally, the connecting frame is attached to the inner side wall of the splicing shell, and the connecting frame and the splicing shell are connected by bolts.

[0015] By adopting the above technical solution, the connecting frame is attached to the inner side wall of the splicing shell and is connected by bolts, enhancing the connection stability between the connecting frame and the splicing shell. The multi-layer connection structure further improves the bending resistance of the I-shaped steel as a whole.

[0016] Optionally, the side of the torsion-resistant clip perpendicular to the profiled steel body and in contact with the profiled steel body is attached to the side wall of the placement groove.

[0017] By adopting the above technical solution, the stability of the torsion-resistant clip is improved. In addition, during the construction process, the connecting frame is first fixed to the inner side of the splicing shell by bolts, and then the torsion-resistant clip is fixed to the splicing shell by bolts. Since the splicing shell is prefabricated, the position of the torsion-resistant clip can be fixed in advance. Subsequently, the profiled steel body is slid into the splicing shell from one side. When the side wall of the torsion-resistant clip comes into contact with the profiled steel body, it means that the profiled steel body is installed in place. Finally, the profiled steel body is welded and bolted.

[0018] Optionally, an anti-corrosion coating is provided on the outside of the profiled steel body.

[0019] By adopting the above technical solution, the corrosion resistance of the profiled steel body is effectively enhanced, and the service life of the I-shaped steel is prolonged.

[0020] In summary, the present application includes at least one of the following beneficial technical effects:

[0021] 1. By providing a splicing shell, torsion-resistant clips, a profiled steel body and a placement groove, the torsion-resistant clips are arranged in the placement groove to resist the torsional force of the profiled steel body and improve the bending resistance effect. At the same time, the prefabricated splicing shell positions the torsion-resistant clips. When installing the profiled steel body, when the torsion-resistant clips contact the side wall of the placement groove, the construction personnel can clearly know that the profiled steel body has been inserted in place, and then the profiled steel body can be limited and fixed;

[0022] 2. By providing a connecting plate, the connecting plate fits against the inner side wall of the splicing shell during installation. Through a multi-stage connection structure, the bending resistance performance of the profiled steel body is further enhanced. At the same time, the connecting plate prevents the profiled steel body from directly contacting the column, reducing the wear between the column and the profiled steel body during long-term use, improving the service life, and at the same time avoiding the possible partial gaps that may exist when the profiled steel body directly contacts the column, and stress concentration may occur at the contact points. The setting of the connecting plate can disperse the stress over a larger area, reducing the risk of local stress concentration. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the construction state of the profiled steel body and the column in the embodiment of the present application.

[0024] Figure 2 is a schematic diagram of the positional relationship among the splicing shell, the connecting frame and the torsion-resistant clip in the embodiment of the present application.

[0025] Figure 3 is a cross-sectional view of the structure of the splicing shell and the connecting frame in the embodiment of the present application.

[0026] Figure 4 is a schematic diagram of the profiled steel body structure in the embodiment of the present application.

[0027] Description of the reference numerals: 1, column; 2, splicing shell; 3, profiled steel body; 4, convex block; 5, connecting frame; 6, torsion-resistant clip; 7, bolt; 8, placement groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The following is a further detailed description of the present application in conjunction with the attached Figures 1-4 drawings.

[0029] The embodiment of the present application discloses a corrosion-resistant and bending-resistant steel structure. Refer to Figure 1, A corrosion-resistant and bending-resistant steel structure includes a column 1, on which a splicing shell 2 is fixedly arranged. The splicing shell 2 is a rectangular shell, and a profiled steel body 3 is slidably inserted into the splicing shell 2. The profiled steel body 3 is an I-beam. To improve the service life of the profiled steel body 3, an anti-corrosion coating (not marked in the figure) is applied to the outer surface of the profiled steel body 3. To facilitate the insertion of the profiled steel body 3, the internal dimensions of the splicing shell 2 are slightly larger than the external dimensions of the profiled steel body 3.

[0030] Referring to Figure 1 and Figure 2 , to improve the bending resistance of the profiled steel body 3, convex blocks 4 corresponding to the profiled steel body 3 are arranged on the inner side of the splicing shell 2. Since the profiled steel body 3 is an I-beam, the convex blocks 4 abut against the inwardly concave side of the profiled steel body 3. A connecting frame 5 is inserted between the splicing shell 2 and the profiled steel body 3. By setting the double-layer connection structure of the splicing shell 2 and the connecting frame 5, the bending resistance of the profiled steel body 3 is strengthened. The bottom of the connecting frame 5 contacts the column 1, and the connecting frame 5 is attached to the inner side wall of the splicing shell 2. During construction, the connecting frame 5 is slid into the splicing shell 2 from the outside. When the bottom of the connecting frame 5 contacts the column 1, the installation is in place. Subsequently, the connecting frame 5 and the splicing shell 2 are fixedly connected by bolts 7.

[0031] Referring to Figure 1 , Figure 2 and Figure 3 , a torsion-resistant clip 6 for enhancing the bending and torsion resistance of the profiled steel body 3 is slidably inserted between the profiled steel body 3 and the connecting frame 5. The torsion-resistant clip 6 is L-shaped, and one end of the torsion-resistant clip 6 is attached to the side wall of the splicing shell 2. Threaded holes for fixing the torsion-resistant clip 6 are provided on the splicing shell 2 (not shown in the figure). During installation, the position of the torsion-resistant clip 6 can be fixed in advance through the threaded holes, and the torsion-resistant clip 6 and the splicing shell 2 are fixed by bolts 7, which facilitates the subsequent installation of the profiled steel body 3.

[0032] Referring to Figure 1 , Figure 3 and Figure 4 , a placement groove 8 is provided on one side of the profiled steel body 3 inserted into the splicing shell 2. Since the profiled steel body 3 is an I-beam, placement grooves 8 are provided on both the upper flange and the lower flange of the profiled steel body 3. The side of the torsion-resistant clip 6 parallel to the side wall of the splicing shell 2 is in sliding fit with the bottom wall of the placement groove 8. To facilitate determining whether the profiled steel body 3 is installed in place during installation, the side of the torsion-resistant clip 6 perpendicular to the profiled steel body 3 and in contact with the profiled steel body 3 is attached to the side wall of the placement groove 8. When the two surfaces are attached, the profiled steel body 3 is installed in place. At this time, the splicing shell 2, the connecting frame 5 and the profiled steel body 3 can be fixed by bolts 7, and finally the profiled steel body 3 and the connecting frame 5 are welded to improve the connection strength.

[0033] The implementation principle of a corrosion-resistant and bending-resistant steel structure in an embodiment of this application is as follows: By combining a splicing shell 2 arranged on the outside with an internal connecting frame 5, it is achieved that the steel profile body 3 not only has a significant enhancement in bending resistance, but also its corrosion resistance and torsional stability have been greatly improved. During construction, splicing shells 2 are prefabricated on the columns 1, and the connecting frames 5 are slid into from one side of the splicing shells 2. When the bottom wall of the connecting frame 5 touches the columns 1, it is placed in place. The bending resistance of the steel profile body 3 can be strengthened through a multi-layer connection structure. In addition, if the steel profile body 3 directly contacts the columns 1, there may be some gaps, and stress concentration will occur at the contact points at this time. The setting of the connecting frame 5 can disperse the stress over a larger area, reducing the risk of local stress concentration;

[0034] Then, the anti-torsion clamping pieces 6 are installed. Threaded holes are pre-opened on the side walls of the splicing shells 2, and the anti-torsion clamping pieces 6 are fixed to the splicing shells 2 through bolts 7. Subsequently, the steel profile body 3 is inserted from the open side of the connecting frame 5. When the side wall of the placement groove 8 abuts against the side wall of the anti-torsion clamping piece, it indicates that the steel profile body 3 is installed in place. Finally, the steel profile body 3 is fixed to the splicing shells 2 and the connecting frames 5 through bolts 7.

[0035] The above are all the preferred embodiments of this application. Without limiting the protection scope of this application accordingly, therefore: All equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A corrosion-resistant and bending-resistant steel structure, comprising a steel body (3) and a column (1), characterized in that: The steel body (3) is an I-beam, and a splicing shell (2) for fixing the steel body (3) is slidably sleeved outside the steel body (3), and the splicing shell (2) is rectangular and fixedly connected to the column (1), and a connecting frame (5) for enhancing the bending resistance of the steel body (3) is sleeved between the splicing shell (2) and the steel body (3), and an anti-torsion clip (6) is slidably inserted between the steel body (3) and the connecting frame (5), and one end of the anti-torsion clip (6) is fixedly connected to the splicing shell (2).

2. A corrosion-resistant bending-resistant steel structure according to claim 1, characterized in that: A placement groove (8) for placing the anti-torsion clip (6) is provided on the steel body (3) and close to the two ends of the splicing shell (2); the anti-torsion clip (6) is L-shaped; the anti-torsion clip (6) is in contact with the side wall of the placement groove (8) and is slidably matched with the side wall of the connecting frame (5).

3. The corrosion-resistant bending-resistant steel structure according to claim 1, characterized in that: A threaded hole is provided on the spliced ​​shell (2), and the anti-torsion clip (6) is connected to the spliced ​​shell (2) via bolts (7).

4. The corrosion-resistant bending-resistant steel structure according to claim 1, characterized in that: A convex block (4) corresponding to the profiled steel body (3) is arranged on the inner side of the spliced ​​shell (2), and the convex block (4) abuts against the inwardly concave side of the profiled steel body (3).

5. The corrosion-resistant bending-resistant steel structure according to claim 1, characterized in that: The connecting frame (5) is in contact with the inner side wall of the spliced ​​shell (2), and the connecting frame (5) and the spliced ​​shell (2) are connected via bolts (7).

6. The corrosion-resistant bending-resistant steel structure according to claim 2, characterized in that: The anti-twist clip (6) is perpendicular to the profiled steel body (3), and the side in contact with the profiled steel body (3) is in contact with the side wall of the placement groove (8).

7. The corrosion-resistant bending-resistant steel structure according to claim 1, characterized in that: The steel body (3) is provided with an anti-corrosion coating on the outside.

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