Anti-seismic steel structure bearing component

Abstract

The invention discloses an anti-seismic steel structure bearing component which comprises a foundation pile, an inner bearing plate, a drill rod, a connecting plate and an elastic connecting piece. The inner bearing plate is arranged in the foundation pile; the connecting plates are fixed to the side wall faces of the foundation piles and the cross beams, and every two opposite connecting plates are fixedly assembled with each other after bolt rods penetrate through the assembling cavities. The elastic connecting pieces are arranged between the cross beam and the foundation pile and between the connecting plate and the foundation pile. The invention relates to the technical field of steel structures, the anti-seismic property of the building steel structure is improved through the design of the inclined plane structure, and the main beam is allowed not to be fractured due to complete fixation with the foundation pile during transverse irregular displacement; therefore, the integrity of the structure is ensured. And when the end part of the cross beam is loosened and moves up and down and left and right, effective limiting and supporting can be carried out. Excessive up-and-down swinging of the cross beam caused by vibration is avoided, the stability of the cross beam is greatly enhanced, and the connecting strength of the cross beam and the foundation pile is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of steel structures, in particular to an earthquake-resistant steel structure load-bearing component. Background Art

[0002] In the modern construction industry, steel structures are widely used in various types of buildings due to their high strength, good earthquake resistance and fast construction speed. In the composition of building steel structures, main beams, cross beams and foundation piles are key load-bearing components. Together, they form the skeleton of the building and undertake the important task of transmitting and bearing various loads. In the existing steel structure load-bearing system, the main beams and cross beams are usually directly connected to the top and sides of the foundation piles by bolts to form a stable load-bearing structure.

[0003] However, this traditional connection method has certain safety risks when earthquakes or other external forces cause structural vibrations. When an earthquake occurs, strong ground vibrations will be transmitted to the building structure, causing the beams and main beams connected to the foundation piles to bear huge dynamic loads. In this case, the connection points may become loose and the structure may also deform. This looseness and deformation will not only reduce the overall stiffness and stability of the structure, but in extreme cases, it may cause partial or complete collapse of the entire steel structure load-bearing system, causing serious casualties and property losses.

[0004] In order to solve this problem, engineers have conducted a lot of research and attempts, including strengthening the strength of connecting parts, improving welding processes, using high-strength bolts, etc. However, these methods have improved the seismic resistance of the structure to a certain extent, but there are still limitations, especially in the face of strong earthquakes, how to ensure the stability of the connection between the main beam and the cross beam and the foundation piles is still a problem that needs to be solved. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an earthquake-resistant steel structure load-bearing component, which solves the problem that the main beams, cross beams and foundation piles in the existing building steel structure are easily loosened and deformed by a single connection method of bolts.

[0006] To achieve the above object, the present invention is implemented through the following technical solutions: A seismic-resistant steel structure load-bearing component, comprising:

[0007] Foundation piles, the top and sides of which are connected with main beams and cross beams;

[0008] An inner receiving plate is arranged inside the foundation pile to divide the interior of the foundation pile into an assembly cavity and a casting cavity;

[0009] A drill rod is fixed on the inner receiving plate, the top of the drill rod extends into the assembly cavity, and the bottom of the drill rod extends out of the foundation pile;

[0010] A connecting plate is fixed to the side wall of the foundation pile and the crossbeam, and two connecting plates are fixed to each other after a bolt rod passes through the assembly cavity, and the bolt rod is located above the drill rod;

[0011] The elastic connecting member is arranged between the cross beam and the foundation pile and between the connecting plate and the foundation pile.

[0012] Preferably, the elastic connecting member includes a plate, a third corrugated surface with continuous bends is formed in the middle of the plate, and a first corrugated surface with continuous bends is formed at both ends, and a second corrugated surface with continuous bends is formed between the first corrugated surface and the third corrugated surface, wherein the bending radius of the first corrugated surface and the third corrugated surface is R1, and the bending radius of the second corrugated surface is R2, and R2>R1.

[0013] Preferably, the first corrugated surface is in contact with the cross beam and the foundation pile, and the third corrugated surface is in contact with the connecting plate and the foundation pile; the plate is arc-shaped under normal conditions, and when the plate is squeezed between the cross beam and the foundation pile and the connecting plate is fixed on the foundation pile, the plate is squeezed to make the second corrugated surface bend to form an arc-shaped supporting portion, and the arc-shaped supporting portion is pressed against the cross beam.

[0014] Preferably, both sides of the inner supporting plate are bent downward to form a bending portion, the bending portion extends outward to form an extension portion, and the extension portion passes through the outer wall surface of the foundation pile; the bottom surface of the end of the crossbeam overlaps the part of the extension portion passing through the foundation pile.

[0015] Preferably, the connecting plate comprises a first wall panel and a second wall panel arranged in an L shape, the first wall panel is fixed on the crossbeam, and the second wall panel is fixed on the outer wall surface of the foundation pile;

[0016] The opposite surface of the second wall panel is provided with a third wall panel connected by a bent plate, and the third wall panel is fixed on the inner wall surface of the foundation pile.

[0017] Preferably, a cavity is formed between the second wall panel, the third wall panel and the bent plate, and the cavity wraps around the outer edge of the foundation pile.

[0018] Preferably, a support plate is provided on the top of the drill rod, and a second gap is formed between the support plate and the bolt rod.

[0019] Preferably, an inclined surface structure is provided at the contact surface between the main beam and the foundation pile, and the inclined surface structure includes a first inclined surface portion located at the outer edge of the contact surface between the main beam and the foundation pile and a second inclined surface portion located in the middle of the contact surface between the main beam and the foundation pile, and a first gap is formed circumferentially along the contact surface between the main beam and the foundation pile and between the first inclined surface portion and the second inclined surface portion.

[0020] Preferably, the first inclined portion includes a first inclined contact surface and a second inclined contact surface which are formed on the circumferential outer edge of the contact surface between the main beam and the foundation pile and are in contact with each other; wherein the first inclined contact surface and the second inclined contact surface are inclined inwardly and upwardly along the circumferential outer edge of the contact surface between the main beam and the foundation pile.

[0021] Preferably, the second inclined portion includes a third inclined contact surface and a fourth inclined contact surface which are formed at the center of the contact surface between the main beam and the foundation pile and fit each other; wherein the third inclined contact surface and the fourth inclined contact surface are inclined inwardly and downwardly along the first gap.

[0022] Beneficial effects of the present invention: By using the earthquake-resistant steel structure load-bearing component provided by the present invention, compared with the prior art, the earthquake-resistant performance of the building steel structure is improved through the inclined structure design. When large-scale vibration causes the connecting bolts of the main beam between the foundation piles to break, thereby causing the main beam to be laterally irregularly displaced on the foundation piles, the inclined structure provides a fixed displacement space and friction force for the main beam, allowing the main beam to not break when it is laterally irregularly displaced due to being completely fixed to the foundation piles, thereby ensuring the integrity of the structure.

[0023] In addition, the setting of the inclined structure also allows the main beam to be reset along the inclined surface after displacement, ensuring the stability of the main beam on the foundation piles and improving the seismic resistance of the main beam and the foundation piles.

[0024] On the other hand, internal receiving plates, connecting plates and elastic connectors are set between the crossbeam and the foundation piles, which can effectively limit and support the crossbeam when the end of the crossbeam becomes loose and moves up and down or left and right. This prevents the crossbeam from swinging up and down excessively due to vibration, greatly enhances the stability of the crossbeam, and effectively improves the connection strength with the foundation piles. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is the front view of the present invention;

[0026] Figure 2 This is a schematic diagram of the structure of the connection surface between the main beam and the foundation pile of the present invention;

[0027] Figure 3 It is a schematic diagram of the three-dimensional structure of the connecting plate of the present invention;

[0028] Figure 4 This is a schematic diagram of the connection structure between the crossbeam and the foundation pile of the present invention;

[0029] Figure 5 It is a schematic diagram of the structure of the elastic connector of the present invention;

[0030] Figure 6 It is a schematic diagram of the three-dimensional connection between the cross beam and the foundation pile of the present invention;

[0031] Figure 7This is a schematic diagram of the three-dimensional structure of the first form of the elastic connector of the present invention;

[0032] Figure 8 It is a schematic diagram of the three-dimensional structure of the second form of the elastic connecting piece of the present invention.

[0033] Description of reference numerals in the figures

[0034] 1. Main beam, 2. Cross beam, 3. Foundation piles, 4. Elastic connector, 41. First corrugated surface, 42. Second corrugated surface, 43. Third corrugated surface, 44. Arc-shaped support portion, 5. Connecting plate, 51. First wall panel, 52. Second wall panel, 53. Bent plate, 54. Third wall panel, 55. Clamp cavity, 6. Bolt rod, 7. Inner supporting plate, 71. Extension portion, 72. Bending portion, 8. Casting cavity, 9. Drill rod, 10. First oblique contact surface, 11. Second oblique contact surface, 12. Third oblique contact surface, 13. Fourth oblique contact surface, 14. First gap, 15. Support plate, 16. Second gap. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. As long as the effects of the present invention can be exerted, various changes can be made to the implementation scheme.

[0036] By those skilled in the art, the components in this case are connected in sequence. The specific connection and operation sequence should refer to the following working principle. The detailed connection means are well-known technologies in the art. The following mainly introduces the working principle and process.

[0037] Reference Figure 1-8 An earthquake-resistant steel structure load-bearing component according to this implementation scheme is described.

[0038] like Figure 1 As shown, the steel structure load-bearing member of this embodiment mainly includes a main beam 1, a cross beam 2 and a foundation pile 3. The main beam 1 is assembled and connected to the top of the foundation pile 3, and the cross beam 2 is assembled and connected to the side of the foundation pile 3.

[0039] An inclined surface structure is provided at the contact surface between the main beam 1 and the foundation pile 3. Figure 1 and Figure 2As shown, the inclined surface structure includes a first inclined surface located at the outer edge of the contact surface between the main beam 1 and the foundation pile 3 and a second inclined surface located in the middle of the contact surface between the main beam 1 and the foundation pile 3. A first gap 14 is formed in the circumferential direction of the contact surface between the main beam 1 and the foundation pile 3 and between the first inclined surface and the second inclined surface. The spacing of the first gap 14 should be greater than 6mm and less than 20mm. Its function is to provide a fixed displacement space for the main beam 1 when a large vibration occurs and causes the connecting bolts of the main beam 1 between the foundation piles 3 to break and cause irregular lateral displacement on the foundation pile 3, so as to ensure that the main beam 1 will not break when it is irregularly displaced laterally because it is completely fixed with the foundation pile 3. The first inclined surface and the second inclined surface can perform oblique friction between the foundation pile 3 and the main beam 1 when the main beam 1 is irregularly displaced laterally. Since it is an inclined surface structure, it can increase resistance during displacement and friction to prevent the transition displacement of the main beam 1; at the same time, the main beam 1 can also be reset after the displacement on the foundation pile 3, ensuring the stability of the main beam 1 on the foundation pile 3 and improving the seismic resistance of the main beam 1 and the foundation pile 3.

[0040] Specific as Figure 2 As shown, the first inclined surface portion includes a first inclined contact surface 10 and a second inclined contact surface 11 formed at the outer circumferential edge of the contact surface between the main beam 1 and the foundation pile 3 and fitted with each other; wherein the first inclined contact surface 10 and the second inclined contact surface 11 are inclined upward and inward along the outer circumferential edge of the contact surface between the main beam 1 and the foundation pile 3. The second inclined surface portion includes a third inclined contact surface 12 and a fourth inclined contact surface 13 formed at the center of the contact surface between the main beam 1 and the foundation pile 3 and fitted with each other; wherein the third inclined contact surface 12 and the fourth inclined contact surface 13 are inclined downward and inward along the first gap 14.

[0041] It should be noted that the lengths of the third oblique contact surface 12 and the fourth oblique contact surface 13 are greater than the lengths of the first oblique contact surface 10 and the second oblique contact surface 11. The first oblique contact surface 10 and the second oblique contact surface 11 both have four oblique edges formed in the circumference of the first gap 14. The third oblique contact surface 12 is formed at the bottom end of the main beam 1, specifically as four inclined surface structures, so that the bottom end of the main beam 1 forms a four-sided cone; the fourth oblique contact surface 13 is formed on the inner wall of the top end of the foundation pile 3, specifically as four inclined surface structures, so that the inner side of the top end of the foundation pile 3 forms a four-sided concave groove, which is completely matched with the four-sided cone, that is, the main beam 1 is completely fitted with the foundation pile 3. The use of the four-sided cone and the four-sided conical groove can form friction and reset effects when the main beam 1 moves forward and backward or left and right during vibration.

[0042] On the basis of the above, if Figure 1As shown, in this embodiment, an inner receiving plate 7 is provided inside the foundation pile 3, so that the inside of the foundation pile 3 is divided into an assembly cavity and a casting cavity 8. When the bottom of the foundation pile 3 is buried underground, the cast cement mortar enters the casting cavity 8, forming a stable connection between the foundation pile 3 and the ground foundation. A drill rod 9 is provided inside the foundation pile 3, and the drill rod 9 is fixed on the inner receiving plate 7. The top of the drill rod 9 extends into the assembly cavity, and the bottom extends out of the foundation pile 3. After casting and shaping, the drill rod 9 is inserted into the foundation to strengthen the connection effect between the foundation pile 3 and the foundation.

[0043] Further, such as Figure 1 As shown, the inner receiving plate 7 is bent downward on both sides to form a bending portion 72, and the bending portion 72 extends outward to form an extension portion 71, so that the inner receiving plate 7 is an arch structure in the projection of the main view, so that the inner receiving plate 7 has a certain load-bearing capacity and pressure resistance; the extension portion 71 penetrates the outer wall of the foundation pile 3, and the bottom surface of the end of the cross beam 2 when fixed on the foundation pile 3 overlaps the part of the extension portion 71 that penetrates the foundation pile 3, so that the downward pressure of the cross beam 2 is distributed to the inner receiving plate 7. When a large vibration occurs and causes the connection point between the cross beam 2 and the foundation pile 3 to loosen or break, causing the cross beam 2 to move downward, the downward pressure directly acts on the inner receiving plate 7. At this time, the inner receiving plate 7 is bent and deformed to distribute the force on the drill rod 9. Since the drill rod 9 is completely fixed in the foundation, the extension portion 71 of the inner receiving plate 7 forms a stable connection with the cross beam 2, and then effectively limits and supports when the end of the cross beam 2 becomes loose and moves downward to generate downward pressure. Furthermore, since the extension portion 71 limits the bottom of the cross beam 2 , it is also possible to avoid excessive up and down swinging of the cross beam 2 due to vibration, thereby greatly enhancing the stability of the cross beam 2 and effectively improving the connection strength with the foundation pile 3 .

[0044] On the basis of the above, if Figure 1 As shown, in this embodiment, a connecting plate 5 is fixed to the side wall of the foundation pile 3 and the cross beam 2, and the connecting plate 5 wraps the edge of the foundation pile 3. The two connecting plates 5 are fixed to each other after the bolt rod 6 penetrates the assembly cavity. The front and rear positions of the cross beam 2 and the foundation pile 3 are limited and fixed, and effective limitation is performed when the end of the cross beam 2 becomes loose and a lateral front and rear displacement occurs. In addition, due to the front and rear limit of the cross beam 2 by the connecting plate 5, excessive left and right swing of the cross beam 2 due to vibration can also be avoided, thereby greatly enhancing the stability of the cross beam 2 and effectively improving the connection strength with the foundation pile 3.

[0045] Specific as Figure 3As shown, the connecting plate 5 includes a first wall panel 51 and a second wall panel 52 arranged in an L shape, wherein the first wall panel 51 is fixed to the cross beam 2, and the second wall panel 52 is fixed to the outer wall surface of the foundation pile 3, so that the cross beam 2 is fixed to the foundation pile 3. The opposite surface of the second wall panel 52 is provided with a third wall panel 54 connected by a bent plate 53, and the third wall panel 54 is fixed to the inner wall surface of the foundation pile 3.

[0046] Furthermore, a clamping cavity 55 is formed between the second wall panel 52, the third wall panel 54 and the bent plate 53, and the clamping cavity 55 is wrapped around the outer edge of the foundation pile 3. The wrapping design of the clamping cavity 55 enables the second wall panel 52 and the third wall panel 54 to be clamped on the inner and outer wall surfaces of the side wall of the foundation pile 3, so as to form a clamping fixation. When the end of the cross beam 2 becomes loose and a lateral front-to-back displacement occurs, effective position limiting is performed. For example, when the cross beam 2 moves forward, the bent plate 53 on the rear side will contact the outer edge of the foundation pile 3, and when it moves backward, the bent plate 53 on the front side will also contact the outer edge of the foundation pile 3, thereby greatly enhancing the stability of the cross beam 2 and effectively improving the connection strength with the foundation pile 3.

[0047] In a preferred embodiment, Figure 1 and Figure 4 and Figure 6 As shown, elastic connectors 4 are provided between the cross beam 2 and the foundation pile 3 and between the connecting plate 5 and the foundation pile 3 to mitigate vibrations between the cross beam 2 and the connecting plate 5 and the foundation pile 3 and to provide support when stress deformation occurs at the end of the supporting cross beam 2.

[0048] Specifically, Figure 5 As shown, the elastic connecting member 4 includes a plate, a third corrugated surface 43 with continuous bending is formed in the middle of the plate, and a first corrugated surface 41 with continuous bending is formed at both ends, and a second corrugated surface 42 with continuous bending is formed between the first corrugated surface 41 and the third corrugated surface 43, wherein the bending radius of the first corrugated surface 41 and the third corrugated surface 43 is R1, and the bending radius of the second corrugated surface 42 is R2, and R2>R1.

[0049] Among them, the first corrugated surface 41 is in contact with the cross beam 2 and the foundation pile 3, and its continuously curved surface is used to reduce the vibration between the cross beam 2 and the foundation pile 3. The third corrugated surface 43 is in contact with the connecting plate 5 and the foundation pile 3; its continuously curved surface is used to reduce the vibration between the connecting plate 5 and the foundation pile 3. Before installation, the plate is arc-shaped under normal conditions and has a certain elastic deformation force. When the plate is squeezed between the cross beam 2 and the foundation pile 3 and the connecting plate 5 is fixed on the foundation pile 3, the plate is squeezed to make the second corrugated surface 42 bend to form an arc-shaped support portion 44, and the arc-shaped support portion 44 is pressed against the cross beam 2 to support the end of the cross beam 2 when stress deformation occurs, thereby ensuring its overall shape. It should be noted that the elastic connector 4 can have two forms, one of which is as Figure 7As shown, the two ends of the plate are disconnected from the middle area, and the disconnected strip-shaped parts are pressed together by the connecting plate 5, while the middle area is still in an arc shape and supported on the upper and lower walls of the inner cavity of the beam 2. Figure 8 What is shown is a frame-shaped structure, which lacks the arc-shaped part in the middle compared with the first structure.

[0050] In a preferred embodiment, Figure 4 As shown, the bolt rod 6 is located above the drill rod 9, a support plate 15 is provided on the top of the drill rod 9, and a second gap 16 is formed between the support plate 15 and the bolt rod 6. When the beams 2 at both ends move upward due to vibration force, the bolt rod 6 connected to the beam 2 bends downward and deforms, and then contacts the support plate 15. The fixed arrangement of the drill rod 9 can effectively support the bolt rod 6, and prevent the bolt rod 6 from excessive bending and breaking.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A seismic-resistant steel structure load-bearing component, characterized in that: include: Foundation piles, the top and sides of which are connected with main beams and cross beams; An inner receiving plate is arranged inside the foundation pile to divide the interior of the foundation pile into an assembly cavity and a casting cavity; A drill rod is fixed on the inner receiving plate, the top of the drill rod extends into the assembly cavity, and the bottom of the drill rod extends out of the foundation pile; A connecting plate is fixed to the side wall of the foundation pile and the crossbeam, and two connecting plates are fixed to each other after a bolt rod passes through the assembly cavity, and the bolt rod is located above the drill rod; The elastic connecting member is arranged between the cross beam and the foundation pile and between the connecting plate and the foundation pile.

2. The earthquake-resistant steel structure load-bearing component according to claim 1, characterized in that: The elastic connecting member includes a plate, a third corrugated surface with continuous bending is formed in the middle of the plate, and a first corrugated surface with continuous bending is formed at both ends, and a second corrugated surface with continuous bending is formed between the first corrugated surface and the third corrugated surface, wherein the bending radius of the first corrugated surface and the third corrugated surface is R1, and the bending radius of the second corrugated surface is R2, and R2>R1.

3. The earthquake-resistant steel structure load-bearing component according to claim 1, characterized in that: The first corrugated surface is in contact with the cross beam and the foundation pile, and the third corrugated surface is in contact with the connecting plate and the foundation pile; the plate is arc-shaped under normal conditions, and when the plate is squeezed between the cross beam and the foundation pile and the connecting plate is fixed on the foundation pile, the plate is squeezed to make the second corrugated surface bend to form an arc-shaped support portion, and the arc-shaped support portion is pressed against the cross beam.

4. The earthquake-resistant steel structure load-bearing component according to claim 1, characterized in that: Both sides of the inner supporting plate are bent downward to form a bending portion, and the bending portion extends outward to form an extension portion, and the extension portion penetrates the outer wall surface of the foundation pile; the bottom surface of the end of the crossbeam overlaps the part of the extension portion that penetrates the foundation pile.

5. The earthquake-resistant steel structure load-bearing component according to claim 1, characterized in that: The connecting plate comprises a first wall panel and a second wall panel arranged in an L shape, wherein the first wall panel is fixed on the cross beam, and the second wall panel is fixed on the outer wall surface of the foundation pile; The opposite surface of the second wall panel is provided with a third wall panel connected by a bent plate, and the third wall panel is fixed on the inner wall surface of the foundation pile.

6. The earthquake-resistant steel structure load-bearing component according to claim 5, characterized in that: A clamping cavity is formed between the second wall panel, the third wall panel and the bent plate, and the clamping cavity wraps around the outer edge of the foundation pile.

7. The earthquake-resistant steel structure load-bearing component according to claim 1, characterized in that: A supporting plate is arranged on the top of the drill rod, and a second gap is formed between the supporting plate and the bolt rod.

8. The earthquake-resistant steel structure load-bearing component according to claim 1, characterized in that: A slope structure is provided at the contact surface between the main beam and the foundation pile, and the slope structure includes a first slope portion located at the outer edge of the contact surface between the main beam and the foundation pile and a second slope portion located in the middle of the contact surface between the main beam and the foundation pile. A first gap is formed circumferentially along the contact surface between the main beam and the foundation pile and between the first slope portion and the second slope portion.

9. The earthquake-resistant steel structure load-bearing component according to claim 8, characterized in that: The first inclined portion includes a first inclined contact surface and a second inclined contact surface formed on the circumferential outer edge of the contact surface between the main beam and the foundation pile and fitting each other; wherein the first inclined contact surface and the second inclined contact surface are inclined inwardly and upwardly along the circumferential outer edge of the contact surface between the main beam and the foundation pile.

10. The earthquake-resistant steel structure load-bearing component according to claim 8, characterized in that: The second inclined surface portion includes a third inclined contact surface and a fourth inclined contact surface which are formed at the center of the contact surface between the main beam and the foundation pile and fit each other; wherein the third inclined contact surface and the fourth inclined contact surface are inclined inwardly and downwardly along the first gap.

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