High-strength H-shaped steel structure

Abstract

The utility model relates to the technical field of H-shaped steel, and discloses a high-strength H-shaped steel structure which comprises a flange plate, concrete is arranged in the middle of the flange plate, reinforcing steel bars are arranged in the concrete, stirrups are fixedly connected to the outer walls of the reinforcing steel bars, alignment grooves are formed in the outer wall of the flange plate, and the stirrups are arranged in the alignment grooves. A plurality of first clamping grooves are formed in the inner walls of the alignment grooves, webs are clamped between the adjacent flange plates, protruding blocks are fixedly connected to the outer walls of the webs, second clamping grooves are formed in the top faces and the bottom faces of the flange plates, and wedges are slidably connected to the outer walls of the first clamping grooves and the outer walls of the second clamping grooves. And a reinforcing rib structure is arranged on the outer wall of the web plate. According to the utility model, the flange plate is internally filled with concrete, so that the advantage that the steel of the external flange plate is easy to form is reserved, the rigidity and hardness of the core part are enhanced, and the special tenon-and-mortise joint is adopted at the connecting part to replace the traditional welding seam, so that the stress is uniform.

Description

TECHNICAL FIELD

[0001] The utility model relates to H shaped steel technical field especially relates to a high strength H shaped steel structure. BACKGROUND

[0002] At present, the H shaped steel structure widely used in the construction engineering and large equipment manufacturing industry is usually welded by steel plate, and this kind of structure is favored because of its good mechanical properties, but some limitations are exposed in practical application, especially under the condition that the demand of carrying capacity and deformation resistance is increasing. With the deepening of the importance of modern industry to the safety and durability of buildings and equipment, the traditional H shaped steel has been difficult to meet the high standard requirements.

[0003] The traditional method is generally to increase the thickness of steel to improve the strength, or to use higher grade alloy steel as raw material, however, these two ways will cause the cost to rise significantly, another common improvement measure is to optimize the cross section design, but this often needs complex calculation support, and may sacrifice the processing convenience, in addition, there is also a method of introducing microalloying treatment to improve the material performance, although it can enhance the steel quality to a certain extent, but due to the high complexity of production process, it is difficult to promote.

[0004] Through the search, the patent of China announcement number: CN219548000U discloses a kind of high strength H shaped steel structure, including lower flange plate and upper flange plate, its characterized in that, the top of lower flange plate is fixedly installed with web, the top of web and the bottom of upper flange plate are fixedly installed, the top of lower flange plate is equipped with sliding groove, the inner wall of sliding groove is provided with support mechanism. The surface of first fixed plate and second fixed plate is respectively pasted with the surface of upper fixed strip and lower fixed strip, so that a triangular mechanism is formed to strengthen the support of upper and lower flange plate, the first fixed plate and second fixed plate are further fixed to the connection of its folded edge and upper and lower flange plate to prevent the damage of folded edge caused by bending, the connection of web and upper and lower flange plate is further fixed by setting reinforcing strip, the design is reasonable, the structure is simple, production is convenient, it is also beneficial to improve the strength of H shaped steel structure, more meet modern development needs, but the above structure does not consider that the cost is increased and the weight is increased by increasing the structure, which is not conducive to the development trend of structure lightweight. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a kind of high strength H shaped steel structure, to improve the problems of increasing cost and increasing weight by thickening material or using high-grade alloy in prior art, which is not conducive to the development trend of structure lightweight.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a high strength structure, including flange plate, the middle part of flange plate is provided with concrete, the inside of concrete is provided with reinforcing steel bar, the outer wall of multiple reinforcing steel bars is fixedly connected with stirrup, the outer wall of flange plate is opened with alignment slot, the inner wall of alignment slot is opened with multiple slot one, the adjacent between two flange plates is clamped with web, the outer wall of web is fixedly connected with lug, the top surface and bottom surface of flange plate are opened with slot two, the outer wall of slot one and slot two is slidably connected with wedge, the outer wall of web is provided with reinforcing rib structure, and the reinforcing rib structure is used for strengthening the connection of flange plate and web.

[0007] Through the above technical scheme: the width and thickness of flange plate determine the bending resistance of H-shaped steel, the middle part of flange plate is provided with concrete, the addition of concrete greatly enhances the strength and stability of structure, the inside of concrete is provided with reinforcing steel bar, the combination of reinforcing steel bar and stirrup further improves the carrying capacity of concrete, so that the whole structure can withstand greater external force, the outer wall of flange plate is opened with alignment slot, so that two flange plates can be more accurately aligned when being connected, ensuring the precision and stability of structure, the web bears the shear force and part of the bending moment of structure, the outer wall of web is fixedly connected with lug, and the lug and the alignment slot on the flange plate cooperate with each other, further enhancing the connection stability of web and flange plate, the outer wall of slot one and slot two is slidably connected with wedge, and the wedge is used to tightly combine flange plate and web together through slot one and slot two, improving the overall stability of structure.

[0008] Further description of the above technical scheme:

[0009] The reinforcing rib structure includes a through hole, the through hole is opened in the top surface of the web, the outer wall of the through hole is slidably connected with a long screw, the middle and lower parts of the long screw are provided with a rib plate, one end of the long screw is threadedly connected with a nut, the other end of the rib plate is connected with an expansion screw, and the other end of the expansion screw is fixedly connected with the outer wall of the flange plate.

[0010] Through the above technical scheme: the long screw has sufficient length and strength, can penetrate the web and be firmly connected with other components, and will not deform or break during long-term use, the material of the rib plate is the same as that of the web to ensure the stability and reliability of the connection, the long screw and the rib plate are tightly combined by tightening the nut, thereby strengthening the connection between the web and the flange plate, and the expansion screw can be firmly connected with the outer wall of the flange plate, the reinforcing rib structure effectively strengthens the connection between the flange plate and the web in the high-strength H-shaped steel structure through the cooperation of the through hole, the long screw, the nut, the rib plate and the expansion screw, and improves the stability and carrying capacity of the whole structure.

[0011] As a further description of the above technical solution:

[0012] The two ends of the wedge are provided with round holes, and the outer wall of the round hole is provided with internal threads.

[0013] Through the above technical solution: the two ends of the wedge are provided with round holes, and the outer wall of the round hole is provided with internal threads, the internal threads can be connected with the wedge through bolts or other connecting components, further enhancing the fixing effect of the wedge and other structural components.

[0014] As a further description of the above technical solution:

[0015] The material of the web is SPHC cold rolled strip steel, and the web adopts a cold bending forming process.

[0016] Through the above technical solution: the material of the web is SPHC cold rolled strip steel, which has good strength and toughness and can withstand various stresses in the structure, and the web adopts a cold bending forming process, which can make the web have accurate shape and size, improve production efficiency while ensuring the accuracy of the structure, and the cold bending forming process can also make the surface of the web smoother, reduce stress concentration phenomenon, and improve the overall performance of the structure.

[0017] As a further description of the above technical solution:

[0018] The outer wall of the flange plate is provided with a lifting hole, and the middle part of the long screw is provided with a gasket.

[0019] Through the above technical solution: the design of the lifting hole provides convenience for the installation and transportation of the structure, and the material of the gasket is wear-resistant material, which can withstand the pressure of the long screw during tightening.

[0020] As a further description of the above technical solution:

[0021] The inside of the flange plate is provided with a shear-resistant rib, and the two ends of the shear-resistant rib are fixedly connected with the two side inner walls of the flange plate.

[0022] Through the above technical solution: the two ends of the shear-resistant rib are fixedly connected with the two side inner walls of the flange plate through firm welding, so that the shear-resistant rib can effectively withstand the shear force in the structure, improving the shear resistance of the flange plate.

[0023] As a further description of the above technical solution:

[0024] The inside of the flange plate is provided with a shear-resistant rib, and the two ends of the shear-resistant rib are fixedly connected with the two side inner walls of the flange plate.

[0025] Through the technical scheme, the two ends of the shear-resistant rib are fixedly connected with the two side inner walls of the flange plate through firm welding, so that the shear-resistant rib can effectively bear the shear force in the structure, the shear-resistant capacity of the flange plate is improved, and the adhesive enhances the bonding force between the flange plate and the concrete.

[0026] Further description of the technical scheme is as follows:

[0027] The outer walls of the flange plate and the web plate are provided with anticorrosive coating, and the stirrups are cross arranged.

[0028] Through the technical scheme, the stirrups play a role of restraining the reinforcing steel bars and enhancing the overall integrity of the concrete structure, the cross-arranged stirrups can better resist the deformation of the concrete in the stress process, and the anti-seismic performance and the bearing capacity of the structure are improved.

[0029] The utility model has the advantages of the following beneficial effects:

[0030] 1. In the utility model, the flange plate is filled with concrete inside, the advantages of easy molding of the outer flange plate steel are retained, the rigidity and hardness of the core part are greatly enhanced, the web plate is of single material, and a special mortise and tenon type interface is used to replace the traditional weld joint at the connecting part, so that the mechanical properties are uniform and consistent in the whole length range and no hidden danger is left.

[0031] 2. In the utility model, the long screw passes through the through hole and is locked by the nut at the other end, so that the rib plate is fixed on the web plate, the expansion screw is screwed in the outer wall of the flange plate at the other end of the rib plate, so that the rib plate is tightly fixed on the connecting joint of the flange plate and the web plate, the thickness and rigidity of the web plate can be increased by the rib plate, the critical buckling stress is improved, the force can be dispersed to the rib plate, and the deformation amount of the web plate is reduced. DETAILED DESCRIPTION

[0032] Figure 1 A front side perspective view of a high-strength H-shaped steel structure flange plate is provided in the utility model;

[0033] Figure 2 A partial structure diagram of a high-strength H-shaped steel structure alignment groove is provided in the utility model;

[0034] Figure 3 A partial structure diagram of a high-strength H-shaped steel structure stirrup is provided in the utility model;

[0035] Figure 4 A partial structure display diagram of a high-strength H-shaped steel structure rib plate is provided in the utility model;

[0036] Figure 5 A partial structure diagram of a high-strength H-shaped steel structure web plate is provided in the utility model.

[0037] Legend:

[0038] 1, flange plate; 2, reinforcing rib structure; 201, through hole; 202, long screw; 203, nut; 204, rib plate; 205, expansion screw; 3, web plate; 4, concrete; 5, stirrup; 6, steel bar; 7, wedge; 8, slot one; 9, slot two; 10, alignment slot; 11, protrusion; 12, round hole; 13, hoisting hole; 14, shear bar; 15, fiber; 16, gasket; 17, internal thread. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0040] Please refer to the drawings in the embodiments of the utility model Figure 1 - the drawings in the embodiments of the utility model Figure 3 The utility model provides an embodiment: a high-strength H-shaped steel structure, including flange plate 1, the middle part of flange plate 1 is provided with concrete 4, the inside of concrete 4 is provided with steel bar 6, the outer wall of multiple steel bars 6 is fixedly connected with stirrup 5, the outer wall of flange plate 1 is provided with alignment slot 10, the inner wall of alignment slot 10 is provided with multiple slot one 8, the adjacent between two flange plates 1 is clamped with web plate 3, the outer wall of web plate 3 is fixedly connected with protrusion 11, the top surface and bottom surface of flange plate 1 are provided with slot two 9, the outer wall of slot one 8 and slot two 9 is slidably connected with wedge 7, the outer wall of web plate 3 is provided with reinforcing rib structure 2, reinforcing rib structure 2 is used for reinforcing the connection of flange plate 1 and web plate 3;

[0041] Specifically, the flange plate 1 plays an important role in the whole structure, its width and thickness determine the bending resistance of the H-shaped steel, the middle part of the flange plate 1 is provided with concrete 4, the addition of the concrete 4 greatly enhances the strength and stability of the structure, the inside of the concrete 4 is provided with steel bars 6, the outer wall of the plurality of steel bars 6 is fixedly connected with the stirrups 5, the combination of the steel bars 6 and the stirrups 5 further improves the carrying capacity of the concrete 4, so that the whole structure can withstand greater external force, the outer wall of the flange plate 1 is provided with a positioning groove 10, the design of the positioning groove 10 enables the two flange plates 1 to be more accurately aligned when connected, ensuring the precision and stability of the structure, the web plate 3 is a key component for connecting the two flange plates 1, which bears the shear force and part of the bending moment of the structure, the outer wall of the web plate 3 is fixedly connected with a protruding block 11, the protruding block 11 cooperates with the positioning groove 10 on the flange plate 1, further enhancing the connection stability of the web plate 3 and the flange plate 1, the outer walls of the clamping groove one 8 and the clamping groove two 9 are both slidingly connected with a wedge 7, the wedge 7 functions to tightly combine the flange plate 1 and the web plate 3 together through the clamping groove one 8 and the clamping groove two 9, improving the overall stability of the structure.

[0042] Please refer to the accompanying drawings Figure 4 - the accompanying drawings Figure 5 The reinforcing rib structure 2 includes a through hole 201, which is provided on the top surface of the web plate 3, the outer wall of the through hole 201 is slidingly connected with a long screw 202, the middle and lower part of the long screw 202 is provided with a rib plate 204, one end of the long screw 202 is threadedly connected with a nut 203, the other end of the rib plate 204 is connected with an expansion screw 205, the other end of the expansion screw 205 is fixedly connected with the outer wall of the flange plate 1.

[0043] Specifically, the through hole 201 is connected with the long screw 202, which has sufficient length and strength to penetrate the web plate 3 and be firmly connected with other components, the material of the long screw 202 is strictly selected to ensure that it will not deform or break during long-term use, the material of the rib plate 204 is the same as that of the web plate 3 to ensure the stability and reliability of the connection, by tightening the nut 203, the long screw 202 and the rib plate 204 can be tightly combined, thereby strengthening the connection between the web plate 3 and the flange plate 1, the expansion screw 205 can be firmly connected with the outer wall of the flange plate 1, the reinforcing rib structure 2 effectively strengthens the connection between the flange plate 1 and the web plate 3 in the high-strength H-shaped steel structure through the cooperative action of the through hole 201, the long screw 202, the nut 203, the rib plate 204 and the expansion screw 205, and improves the stability and carrying capacity of the whole structure.

[0044] Please refer to the accompanying drawings Figure 2 - the accompanying drawings Figure 4The two ends of the wedge 7 are provided with round holes 12, the outer wall of the round hole 12 is provided with an internal thread 17, the material of the web plate 3 is SPHC cold rolled strip steel, the web plate 3 adopts a cold bending forming process, the outer wall of the flange plate 1 is provided with a lifting hole 13, the middle part of the long screw 202 is provided with a gasket 16;

[0045] Specifically, the two ends of the wedge 7 are provided with round holes 12, the outer wall of the round hole 12 is provided with an internal thread 17, the internal thread 17 makes it possible to be connected with the wedge 7 through bolts or other connecting components, further enhances the fixing effect of the wedge 7 and other structural components, can ensure that the wedge 7 can be firmly clamped in the card slot one 8 and the card slot two 9 in the structure, thereby strengthening the connection stability between the flange plate 1 and the web plate 3, the material of the web plate 3 is SPHC cold rolled strip steel, which has good strength and toughness and can withstand various stresses in the structure, the web plate 3 adopts a cold bending forming process, which can make the web plate 3 have accurate shape and size, improve production efficiency while ensuring the accuracy of the structure, the cold bending forming process can also make the surface of the web plate 3 smoother, reduce stress concentration phenomenon and improve the overall performance of the structure, the design of the lifting hole 13 provides convenience for the installation and transportation of the structure, the material of the gasket 16 is wear-resistant material and can withstand the pressure of the long screw 202 during tightening, the gasket 16 increases the contact area between the long screw 202 and the rib plate 204, disperses the pressure and prevents the long screw 202 from damaging the rib plate 204 during tightening.

[0046] Please refer to the accompanying drawings Figure 1 - the accompanying drawings Figure 3 The inside of the flange plate 1 is provided with a shear bar 14, the two ends of the shear bar 14 are fixedly connected with the two side inner walls of the flange plate 1, the inside of the concrete 4 is provided with a fiber 15, the inner wall of the flange plate 1 is provided with an adhesive, the outer walls of the flange plate 1 and the web plate 3 are provided with a corrosion-resistant coating, and the stirrups 5 are cross arranged.

[0047] Specifically, the two ends of the shear bar 14 are fixedly connected with the two side inner walls of the flange plate 1 through firm welding, so that the shear bar 14 can effectively withstand the shear force in the structure and improve the shear resistance of the flange plate 1, the addition of the fiber 15 can significantly improve the performance of the concrete 4, effectively prevent the generation and expansion of cracks in the concrete 4, improve the durability of the concrete 4 and prolong the service life of the structure, the adhesive enhances the bonding force between the flange plate 1 and the concrete 4, the adhesive is evenly applied on the inner wall of the flange plate 1, and then the concrete 4 is poured, so that the concrete 4 and the inner wall of the flange plate 1 are tightly combined together, the stirrups 5 play a role in restraining the steel bars 6 and enhancing the overall structure of the concrete 4, and the cross-arranged stirrups 5 can better resist the deformation of the concrete 4 during the stress process, improve the anti-seismic performance and carrying capacity of the structure.

[0048] Working principle: the flange plate 1 adopts double-layer composite plate form, fills a certain proportion of concrete 4 in the basis of the flange plate 1, retains the advantage that the outer flange plate 1 steel is easy to shape, and greatly enhances the rigidity and hardness of the core part, the web 3 keeps single material selection, adopts advanced cold bending forming process instead of traditional hot rolling process, which effectively avoids the adverse effects caused by the internal organization change of steel under high temperature, and further accurately controls the dimensional accuracy of the final product, special mortise and tenon type interface is used in the connecting part instead of traditional weld, the convex block 11 is clamped into the opposite slot 10 to determine the position, then the wedge 7 is inserted to fix and jam, so that the flange plate 1 and the web 3 are fixedly connected, and the uniform mechanical properties in the whole length range are ensured without hidden dangers.

[0049] The long screw 202 passes through the through hole 201, and the both ends are penetrated by the rib plate 204, and then the nut 203 at the other end is locked, so that the rib plate 204 is fixed on the web plate 3, the expansion screw 205 is screwed in the outer wall of the flange plate 1 through the other end of the rib plate 204, so that the rib plate 204 is tightly fixed on the connecting joint of the flange plate 1 and the web plate 3, the rib plate 204 can increase the thickness and rigidity of the web plate 3, improve the critical buckling stress, and prevent the local instability of the web plate 3, when the external force acts on the H-shaped steel, the rib plate 204 disperses part of the force to the rib plate 204 through the connection with the web plate 3, and reduces the deformation amount of the web plate 3.

[0050] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. made within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A high-strength H-shaped steel structure, comprising a flange plate (1), characterized in that: Concrete (4) is provided in the middle of the flange plate (1), steel bars (6) are provided inside the concrete (4), and stirrups (5) are fixedly connected to the outer walls of the plurality of steel bars (6). An alignment groove (10) is provided on the outer wall of the flange plate (1), and a plurality of first clamping grooves (8) are provided on the inner wall of the alignment groove (10). A web (3) is clamped between two adjacent flange plates (1), and a protrusion (11) is fixedly connected to the outer wall of the web (3). A second clamping groove (9) is provided on the top and bottom surfaces of the flange plate (1), and the outer walls of the first clamping groove (8) and the second clamping groove (9) are both slidably connected to a wedge (7). A reinforcing rib structure (2) is provided on the outer wall of the web (3), and the reinforcing rib structure (2) is used to strengthen the connection between the flange plate (1) and the web (3).

2. A high-strength H-shaped steel structure according to claim 1, characterized in that: The reinforcing rib structure (2) comprises a through hole (201), wherein the through hole (201) is provided on the top surface of the web (3), and the outer wall of the through hole (201) is slidably connected to a long screw (202), a rib plate (204) is provided at the middle and lower part of the long screw (202), one end of the long screw (202) is threadedly connected to a nut (203), and the other end of the rib plate (204) is connected to an expansion screw (205), and the other end of the expansion screw (205) is fixedly connected to the outer wall of the flange plate (1).

3. The high-strength H-shaped steel structure according to claim 1, characterized in that: Both ends of the wedge (7) are provided with circular holes (12), and the outer wall of the circular hole (12) is provided with an internal thread (17).

4. The high-strength H-shaped steel structure according to claim 1, characterized in that: The material of the web (3) is SPHC cold-rolled steel strip, and the web (3) is formed using a cold-bending process.

5. The high-strength H-shaped steel structure according to claim 2, characterized in that: A lifting hole (13) is provided on the outer wall of the flange plate (1), and a gasket (16) is provided in the middle of the long screw (202).

6. The high-strength H-shaped steel structure according to claim 1, characterized in that: Shear ribs (14) are provided inside the flange plate (1), and both ends of the shear ribs (14) are fixedly connected to the inner walls of both sides of the flange plate (1).

7. The high-strength H-shaped steel structure according to claim 1, characterized in that: Fibers (15) are provided inside the concrete (4), and an adhesive is provided on the inner wall of the flange plate (1).

8. The high-strength H-shaped steel structure according to claim 1, characterized in that: The outer walls of the flange plate (1) and the web plate (3) are provided with an anti-corrosion coating, and the stirrups (5) are arranged in a cross-like manner.

Images