Anti-seismic structure for large-span space steel structure

Abstract

The utility model discloses an anti-seismic structure for a large-span space steel structure, and belongs to the technical field of steel structures, the anti-seismic structure comprises a steel frame structure, a connecting seat is fixedly mounted at the bottom end of the steel frame structure, a base is arranged below the connecting seat, the base is pre-buried in a mounting surface, a damping mechanism is mounted at the bottom of the connecting seat, and the damping mechanism comprises a plurality of L-shaped insertion rods; the steel frame structure shakes under the action of earthquake force, under the action of a spherical block, a connecting base is allowed to have a certain shaking freedom degree relative to a base, meanwhile, an L-shaped inserting rod is driven to shake to compress a spring, the spring absorbs and disperses earthquake energy through elastic deformation of the spring, structural vibration is reduced, and the rubber block and the spring act jointly, so that the structure is more stable. Meanwhile, due to the fact that the L-shaped inserting rods are evenly distributed on the four sides of the bottom of the connecting base, shaking force from different directions can be reduced in a balanced mode at the same time, the bearing capacity of the bottom foundation of the structure is improved, and the anti-seismic effect is enhanced.

Description

Technical Field

[0001] The present application relates to the technical field of steel structures, and in particular to an earthquake-resistant structure for large-span spatial steel structures. Background Art

[0002] With the continuous development of construction technology, large-span spatial steel structures are being used more and more widely in various large public buildings. The safety of such structures under earthquakes has always been a focus of attention in the engineering community.

[0003] The published patent document with announcement number CN213675373U provides a new type of large-span seismic-resistant steel structure, which relates to the technical field of steel structures and improves the problem of poor seismic resistance of large-span steel structures. It includes columns, beams and connecting rods. One end of the column is connected to the beam, and the other end of the column is connected to the ground. The columns and beams are a group of several columns and beams arranged at equal intervals in the same direction. The connecting rod connects two adjacent columns and beams. The column is composed of several seismic-resistant units, and the seismic-resistant unit has a reinforcing grid for external force conduction. The beam has a mesh structure composed of reinforcing rods. This application can enhance the connection strength and structural strength of the large-span steel structure, while increasing the seismic resistance of the large-span steel structure.

[0004] The upper seismic structure of the above-mentioned large-span seismic-resistant steel structure is relatively strong, but the huge horizontal shear force and overturning moment generated under the action of an earthquake, and the bearing capacity of the bottom foundation is insufficient, and it may overturn in an earthquake. For this reason, this application provides a seismic-resistant structure for large-span spatial steel structures. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the present application provides a seismic-resistant structure for large-span spatial steel structures, which overcomes the shortcomings of the existing technology and aims to solve the problem that the upper seismic-resistant structure of the above large-span seismic-resistant steel structures is strong, but the huge horizontal shear force and overturning moment generated under the action of an earthquake, and the bearing capacity of the bottom foundation is insufficient, which may cause overturning in an earthquake.

[0006] To achieve the above-mentioned objectives, the present application provides the following technical solutions: an earthquake-resistant structure for large-span spatial steel structures, comprising a steel frame structure, a connecting seat fixedly installed at the bottom end of the steel frame structure, a base provided below the connecting seat, the base pre-buried inside the mounting surface, a shock-absorbing mechanism installed at the bottom of the connecting seat, the shock-absorbing mechanism comprising several groups of L-shaped rods, several groups of L-shaped rods all fixedly installed at the bottom of the connecting seat, and several groups of L-shaped rods evenly distributed on the four sides of the bottom of the connecting seat, a spring installed at one end of the L-shaped rod away from the connecting seat, a rubber block installed at one end of the spring away from the L-shaped rod, and a spherical block fixedly installed at the bottom end of the connecting seat.

[0007] By adopting the above technical solution, the steel frame structure shakes under the action of earthquake force. Under the action of the spherical block, the connecting seat is allowed to have a certain degree of freedom to shake relative to the base, and at the same time, the L-shaped rod shakes to compress the spring. The spring absorbs and disperses earthquake energy through its elastic deformation, reducing structural vibration. The rubber block and the spring work together to further absorb and dissipate earthquake energy. At the same time, since several groups of L-shaped rods are evenly distributed on the four sides of the bottom of the connecting seat, the shaking force from different directions can be reduced simultaneously and evenly, thereby improving the bearing capacity of the bottom foundation of this structure and enhancing the earthquake resistance effect.

[0008] As a preferred technical solution of the present application, two groups of connecting rods are fixedly installed between the L-shaped plug rods located on the same side, and the two groups of connecting rods are distributed up and down.

[0009] By adopting the above technical solution, the L-shaped rods on the same side are connected by a connecting rod, thereby enhancing the overall rigidity of the L-shaped rods on the same side and improving the stability of the structure.

[0010] As a preferred technical solution of the present application, the steel frame structure includes four groups of columns, which are fixedly installed on the top of the connecting seat. Several groups of cross braces are fixedly installed between two adjacent groups of columns, and several groups of cross braces are distributed longitudinally along the direction of the columns.

[0011] By adopting the above technical solution, a stable support system is formed by four groups of columns and connecting seats, and the overall stability and lateral displacement resistance of the steel frame structure are enhanced by cross bracing.

[0012] As a preferred technical solution of the present application, a reinforcement frame is provided inside the base, and the reinforcement frame includes several groups of steel bars. Several groups of steel bars are evenly distributed around the outer circle of the connecting seat, and several groups of steel bars are fixedly installed with hoops on the upper and lower sides.

[0013] By adopting the above technical solution, additional anti-lateral stiffness is provided to the base through several groups of steel bars and hoops, which effectively enhances the overall strength and stability of the base structure, and enhances the anti-lateral force and foundation bearing capacity of the base.

[0014] As a preferred technical solution of the present application, a damper is provided inside the spring, one end of the damper is fixedly mounted on one side of the L-shaped rod, and the telescopic end of the damper is mounted on one side of the rubber block.

[0015] By adopting the above technical solution, the damper guides the spring and further improves the shock absorption effect, so that the structure can return to a stable state more quickly under the action of external forces such as earthquakes.

[0016] As a preferred technical solution of the present application, four groups of slots are provided inside the base, and the L-shaped rods located on the same side match the corresponding slots.

[0017] By adopting the above technical solution, the L-shaped rods on the same side are matched with the corresponding slots, so that the L-shaped rods on the same side can undergo a certain degree of relative movement in the slots, thereby absorbing and dissipating seismic energy through springs, rubber blocks and dampers.

[0018] As a preferred technical solution of the present application, the spherical block is semi-spherical, and a spherical groove matching the spherical block is provided on the top of the base.

[0019] By adopting the above technical solution, the spherical blocks are matched with the spherical grooves to form a tumbler effect, allowing the steel frame structure to have a certain degree of freedom to shake during an earthquake, thereby improving the adaptability and flexibility of the structure and reducing structural stress concentration and damage caused by ground deformation.

[0020] As a preferred technical solution of the present application, the outer surface of the steel frame structure is coated with a galvanized coating.

[0021] By adopting the above technical solution, a protective layer is formed on the outer surface of the steel frame structure through the galvanized coating, which minimizes rust and corrosion of the steel frame structure, extends the service life of the steel frame structure, and reduces maintenance costs.

[0022] Beneficial effects of this application:

[0023] 1. The steel frame structure shakes under the action of earthquake force. Under the action of the spherical block, the connecting seat is allowed to have a certain degree of freedom to shake relative to the base, and at the same time, the L-shaped rod shakes to compress the spring. The spring absorbs and disperses seismic energy through its elastic deformation, reducing structural vibration. The rubber block and the spring work together to further absorb and dissipate seismic energy. At the same time, since several groups of L-shaped rods are evenly distributed on the four sides of the bottom of the connecting seat, the shaking force from different directions can be reduced simultaneously and evenly, thereby improving the bearing capacity of the bottom foundation of this structure and enhancing the seismic effect.

[0024] 2. The L-shaped rods on the same side are connected by a connecting rod, thereby enhancing the overall rigidity of the L-shaped rods on the same side and improving the stability of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of this application;

[0026] Figure 2 Schematic diagram of the shock absorption mechanism structure;

[0027] Figure 3 for Figure 2 A schematic diagram of the structure at center A;

[0028] Figure 4 This is a schematic diagram of the cross-sectional structure of the base.

[0029] In the figure: 1. Steel frame structure; 101. Column; 102. Cross brace; 2. Connecting seat; 3. Base; 4. Shock-absorbing mechanism; 401. L-shaped rod; 402. Spring; 403. Rubber block; 404. Slot; 405. Spherical block; 406. Spherical groove; 5. Connecting rod; 6. Reinforcement frame; 601. Steel bar; 602. Hoop; 7. Damper. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0031] Reference Figure 1-4 , an earthquake-resistant structure for a large-span space steel structure, including a steel frame structure 1, a connecting seat 2 is fixedly installed at the bottom end of the steel frame structure 1, a base 3 is provided under the connecting seat 2, the base 3 is pre-buried in the mounting surface, and a shock-absorbing mechanism 4 is installed at the bottom of the connecting seat 2, the shock-absorbing mechanism 4 includes several groups of L-shaped plug rods 401, several groups of L-shaped plug rods 401 are fixedly installed at the bottom of the connecting seat 2, and several groups of L-shaped plug rods 401 are evenly distributed on the four sides of the bottom of the connecting seat 2, and a spring 402 is installed at one end of the L-shaped plug rod 401 away from the connecting seat 2, and a rubber block 403 is installed at one end of the spring 402 away from the L-shaped plug rod 401, and a spherical block 405 is fixedly installed at the bottom end of the connecting seat 2; the steel frame structure 1 includes four groups of columns 101, the columns 101 are fixedly installed at the top end of the connecting seat 2, and several groups of cross braces 102 are fixedly installed between two adjacent groups of columns 101, and several groups of cross braces 102 are distributed longitudinally along the direction of the columns 101.

[0032] The steel frame structure 1 shakes under the action of earthquake force. Under the action of the spherical block 405, the connecting seat 2 is allowed to have a certain degree of freedom to shake relative to the base 3, and at the same time drives the L-shaped rod 401 to shake to compress the spring 402. The spring 402 absorbs and disperses the earthquake energy through its elastic deformation, reducing structural vibration. The rubber block 403 and the spring 402 work together to further absorb and dissipate the earthquake energy. At the same time, since several groups of L-shaped rods 401 are evenly distributed on the four sides of the bottom of the connecting seat 2, the shaking forces from different directions can be reduced simultaneously and evenly, thereby improving the bearing capacity of the bottom foundation of the structure and enhancing the earthquake resistance effect. A stable support system is formed by the four groups of columns 101 and the connecting seat 2, and the overall stability and anti-lateral displacement ability of the steel frame structure 1 are enhanced by the cross braces 102.

[0033] Reference Figure 1-4 Two groups of connecting rods 5 are fixedly installed between the L-shaped insertion rods 401 on the same side, and the two groups of connecting rods 5 are distributed up and down; a reinforcement frame 6 is provided inside the base 3, and the reinforcement frame 6 includes several groups of steel bars 601. Several groups of steel bars 601 are evenly distributed around the outer circle of the connecting seat 2, and several groups of steel bars 601 are fixedly installed with hoops 602 on both the upper and lower sides; four groups of slots 404 are opened inside the base 3, and the L-shaped insertion rods 401 on the same side match the corresponding slots 404;

[0034] The L-shaped rods 401 on the same side are connected by the connecting rod 5, which enhances the overall stiffness of the L-shaped rods 401 on the same side and improves the stability of the structure; a plurality of groups of steel bars 601 and hoops 602 are used to provide additional anti-lateral stiffness for the base 3, effectively enhancing the overall strength and stability of the base 3 structure, and enhancing the anti-lateral force and foundation bearing capacity of the base 3; the L-shaped rods 401 on the same side are matched with the corresponding slots 404, so that the L-shaped rods 401 on the same side can undergo a certain degree of relative movement in the slots 404, thereby absorbing and dissipating seismic energy through the spring 402, the rubber block 403 and the damper 7.

[0035] Reference Figure 2-3 A damper 7 is provided inside the spring 402, one end of the damper 7 is fixedly mounted on one side of the L-shaped rod 401, and the telescopic end of the damper 7 is mounted on one side of the rubber block 403; the spherical block 405 is semi-spherical, and a spherical groove 406 matching the spherical block 405 is provided on the top of the base 3; the damper 7 plays a guiding role for the spring 402, and at the same time, the damper 7 further improves the shock absorption effect, so that the structure can restore a stable state more quickly under the action of external forces such as earthquakes; the spherical block 405 is matched with the spherical groove 406 to form a tumbler effect, allowing the steel frame structure 1 to have a certain degree of freedom of shaking during an earthquake, thereby improving the adaptability and flexibility of the structure and reducing the structural stress concentration and damage caused by ground deformation.

[0036] Reference Figure 1 The outer surface of the steel frame structure 1 is coated with a galvanized coating; a protective layer is formed on the outer surface of the steel frame structure 1 by the galvanized coating, which minimizes rust and corrosion of the steel frame structure 1, extends the service life of the steel frame structure 1, and reduces maintenance costs.

[0037] Working principle: The steel frame structure 1 shakes under the action of earthquake force. Under the action of the spherical block 405, the connecting seat 2 is allowed to have a certain degree of freedom of shaking relative to the base 3, and at the same time drives the L-shaped rod 401 to shake to compress the spring 402. The spring 402 absorbs and disperses the earthquake energy through its elastic deformation, reducing structural vibration. The rubber block 403 and the spring 402 work together to further absorb and dissipate the earthquake energy. At the same time, since several groups of L-shaped rods 401 are evenly distributed on the four sides of the bottom of the connecting seat 2, the shaking forces from different directions can be reduced simultaneously and evenly, thereby improving the bearing capacity of the bottom foundation of this structure and enhancing the earthquake resistance effect. The L-shaped rods 401 on the same side are connected by the connecting rod 5, which enhances the overall stiffness of the L-shaped rods 401 on the same side and improves the stability of the structure.

[0038] The four groups of columns 101 and the connecting base 2 form a stable support system, the cross braces 102 enhance the overall stability and lateral displacement resistance of the steel frame structure 1, and the multiple groups of steel bars 601 and hoops 602 provide additional lateral displacement resistance rigidity for the base 3, effectively enhancing the overall strength and stability of the base 3 structure, and increasing the lateral displacement resistance and foundation bearing capacity of the base 3.

[0039] At the same time, the damper 7 guides the spring 402 and further improves the shock absorption effect, so that the structure can more quickly return to a stable state under the action of external forces such as earthquakes. The L-shaped rods 401 on the same side match the corresponding slots 404, so that the L-shaped rods 401 on the same side can move relative to each other within the slots 404 to a certain extent, thereby absorbing and dissipating earthquake energy through the spring 402, the rubber block 403 and the damper 7.

[0040] In addition, by matching the spherical block 405 with the spherical groove 406, a tumbler effect is formed, allowing the steel frame structure 1 to have a certain degree of freedom to shake during an earthquake, thereby improving the adaptability and flexibility of the structure and reducing the structural stress concentration and damage caused by ground deformation. A protective layer is formed on the outer surface of the steel frame structure 1 by the galvanized coating, which minimizes rust and corrosion of the steel frame structure 1, extends the service life of the steel frame structure 1, and reduces maintenance costs.

[0041] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A seismic resistant structure for a large-span spatial steel structure, comprising a steel frame structure (1), characterized in that: A connecting seat (2) is fixedly installed at the bottom end of the steel frame structure (1), a base (3) is provided below the connecting seat (2), and the base (3) is pre-buried inside the installation surface. A shock-absorbing mechanism (4) is installed at the bottom of the connecting seat (2), and the shock-absorbing mechanism (4) includes a plurality of groups of L-shaped plug rods (401), and the plurality of groups of L-shaped plug rods (401) are fixedly installed at the bottom of the connecting seat (2), and the plurality of groups of L-shaped plug rods (401) are evenly distributed on the four sides of the bottom of the connecting seat (2), a spring (402) is installed at one end of the L-shaped plug rod (401) away from the connecting seat (2), and a rubber block (403) is installed at one end of the spring (402) away from the L-shaped plug rod (401), and a spherical block (405) is fixedly installed at the bottom end of the connecting seat (2).

2. The earthquake-resistant structure for a large-span space steel structure according to claim 1, characterized in that: Two groups of connecting rods (5) are fixedly installed between the L-shaped insertion rods (401) located on the same side, and the two groups of connecting rods (5) are distributed up and down.

3. The earthquake-resistant structure for a large-span space steel structure according to claim 1, characterized in that: The steel frame structure (1) comprises four groups of columns (101), wherein the columns (101) are fixedly mounted on the top of the connecting seat (2), and a plurality of groups of cross braces (102) are fixedly mounted between two adjacent groups of columns (101), and the plurality of groups of cross braces (102) are longitudinally distributed along the direction of the columns (101).

4. The earthquake-resistant structure for a large-span space steel structure according to claim 1, characterized in that: A reinforcement frame (6) is provided inside the base (3), and the reinforcement frame (6) comprises a plurality of groups of steel bars (601). The plurality of groups of steel bars (601) are evenly distributed around the outer ring of the connecting seat (2), and hoops (602) are fixedly mounted on both upper and lower sides of the plurality of groups of steel bars (601).

5. The earthquake-resistant structure for a large-span space steel structure according to claim 1, characterized in that: A damper (7) is provided inside the spring (402), one end of the damper (7) is fixedly mounted on one side of the L-shaped insertion rod (401), and the telescopic end of the damper (7) is mounted on one side of the rubber block (403).

6. The earthquake-resistant structure for a large-span space steel structure according to claim 1, characterized in that: Four groups of slots (404) are provided inside the base (3), and the L-shaped insertion rods (401) located on the same side match the corresponding slots (404).

7. The earthquake-resistant structure for a large-span space steel structure according to claim 1, characterized in that: The spherical block (405) is semi-spherical, and a spherical groove (406) matching the spherical block (405) is provided on the top of the base (3).

8. The earthquake-resistant structure for a large-span space steel structure according to claim 1, characterized in that: The outer surface of the steel frame structure (1) is coated with a galvanized coating.

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