Building seismic mitigation and isolation structure

Abstract

The utility model relates to a building shock absorption and isolation structure, which belongs to the technical field of buildings and comprises a steel structure base, a steel structure mounting table, two rubber shock absorption blocks, a steel hoop, a plurality of through holes, a plurality of locking screws, a plurality of locking nuts and a plurality of positioning steel bars. The multiple positioning steel bars movably penetrate through the steel structure base, and the multiple positioning steel bars are wrapped with the two rubber damping blocks which are combined and spliced with each other. According to the building shock absorption and isolation structure, the steel structure base is integrally poured and fixed to the concrete ground for installation, meanwhile, the steel structure installation table is used for installing the structure, and therefore when the steel structure vibrates, the rubber shock absorption blocks are prevented from being directly stressed for shock absorption through the vertical sliding vibration force of the arranged buffering assembly; and meanwhile, the buffer shock absorber and the friction resistance increasing device which are arranged in a matched mode convert vertical force generated by vibration into transverse force to share stress points, and the shock absorption and isolation effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of construction, in particular to a building seismic isolation structure. Background Art

[0002] Steel structure seismic isolation is a technology that reduces the impact of earthquakes on buildings by using steel in building structures. The steel structure seismic isolation base is a base structure used to support and fix the seismic isolation system. In seismic isolation technology, the main structure of the building reduces the vibration caused by earthquakes through the connection between the shock absorber and the foundation, and this connection is usually achieved through the base. The base is usually made of steel and has sufficient strength and rigidity to support the weight of the building and can effectively transfer the seismic force to the seismic isolation system.

[0003] Among them, the steel structure seismic isolation base is usually built through rubber shock-absorbing blocks, but it will bear all vertical pressures during the shock absorption process, which may easily cause excessive force on the rubber shock-absorbing blocks, and fail to achieve good shock absorption effects and are easily damaged. Based on the above-mentioned defects in the prior art, the present application designs a building seismic isolation structure that relieves vibration pressure and improves shock absorption effects to solve this defect in the prior art. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a building seismic isolation structure, which has the advantages of alleviating vibration pressure and improving shock absorption effect.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a building seismic isolation structure, comprising a steel structure base, a steel structure mounting platform, two rubber shock-absorbing blocks, a steel hoop, a plurality of perforations, a plurality of locking screws, a plurality of locking nuts and a plurality of positioning steel bars;

[0006] A plurality of positioning steel bars are movably passed through the steel structure base, and the exterior of the plurality of positioning steel bars is wrapped with two rubber shock-absorbing blocks that are combined and spliced ​​with each other, and the exterior of the rubber shock-absorbing blocks is fixedly locked with the steel hoop ring by fastening screws, and a steel structure mounting platform is installed between the tops of the positioning steel bars, and a plurality of through holes are opened on the steel structure mounting platform, and a plurality of locking screws passing through the through holes are installed on the top of the steel structure base, and the outer top threads of the locking screws are locked with locking nuts;

[0007] A buffer assembly for reducing vertical vibration is provided between the steel structure base and the steel structure mounting platform;

[0008] The steel structure mounting platform is provided with a buffer shock absorber which converts the vertical vibration impact force into the lateral vibration impact force;

[0009] The buffer shock absorber is provided with a friction resistance increasing device to alleviate the vibration amplitude.

[0010] As a preferred technical solution of the utility model, the buffer assembly includes a plurality of mounting grooves opened on the top of the rubber damping block and a steel structure limiting ring installed on the bottom of the steel structure mounting platform and attached to the outside of the rubber damping block;

[0011] Wherein, a buffer spring is installed in the installation groove.

[0012] As a preferred technical solution of the utility model, when the buffer spring is in a normal contraction state, the top surface of the buffer spring is higher than the top surface of the rubber shock absorbing block, and the rubber shock absorbing blocks are combined and spliced ​​into a cylinder.

[0013] As a preferred technical solution of the utility model, the buffer shock absorber includes a plurality of steel structure rotating rods rotatably connected to the bottom of the steel structure mounting platform and distributed in a ring-shaped manner with equal distances, the other end of the steel structure rotating rod is rotatably connected to a steel structure moving rod, the outside of the steel structure moving rod is slidably connected to a steel structure outer cylinder, and the other end of the steel structure moving rod is installed with a stainless steel spring placed in the steel structure outer cylinder through a fastening screw;

[0014] A stainless steel annular seat is installed between the other ends of the steel structure outer cylinder.

[0015] As a preferred technical solution of the utility model, the friction resistance increasing device comprises a friction resistance increasing rod installed at the other end of the steel structure moving rod, penetrating the steel structure outer cylinder and the stainless steel annular seat and extending to the outside of the stainless steel annular seat, and a resistance increasing through hole is opened on the friction resistance increasing rod;

[0016] Among them, a number of steel structure mounting rods passing through the resistance increasing holes are installed on the outside of the stainless steel annular seat by fastening screws, and resistance increasing plates in contact with the friction resistance increasing rods are provided on the front and rear sides of the steel structure mounting rods. An elastic part is provided between the steel structure mounting rods and the resistance increasing plates to ensure that the friction resistance increasing rods and the resistance increasing plates fit tightly.

[0017] As a preferred technical solution of the utility model, the elastic member includes placement grooves opened on the front and rear sides of the steel structure mounting rod for placing the resistance-increasing plate, and a plurality of mounting tubes equidistantly distributed between the placement grooves are embedded in the steel structure mounting rod. Telescopic springs are installed on both sides of the left and right sides of the mounting tube, and a push rod in contact with the resistance-increasing plate is installed at the other end of the telescopic spring.

[0018] As a preferred technical solution of the utility model, when the telescopic spring is in an extended state, the resistance increasing sheet and the placement groove are inseparable.

[0019] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0020] The seismic isolation structure of the building is fixed to the concrete floor through an integral casting of a steel structure base. When the steel structure vibrates, the force of the vibration is slid up and down by the buffer assembly, thereby avoiding direct force and shock absorption of the rubber shock-absorbing blocks. At the same time, the vertical force generated by the vibration is converted into a lateral force to share the force points in cooperation with the buffer shock absorbers and friction resistance increasers, thereby ensuring the seismic isolation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional diagram of the utility model;

[0022] Figure 2 It is a cross-sectional view of the utility model;

[0023] Figure 3 It is a partial stereogram of the utility model;

[0024] Figure 4 It is a partial cross-sectional view of the utility model;

[0025] Figure 5 It is a side perspective view of the utility model;

[0026] Figure 6 This is a bottom view of the utility model;

[0027] Figure 7 It is a cross-sectional view of the steel structure installation rod of the utility model;

[0028] Figure 8 It is a top view of the utility model.

[0029] In the figure: 1. Steel structure base; 2. Steel structure mounting platform; 3. Perforation; 4. Rubber shock-absorbing block; 5. Steel hoop; 6. Locking screw; 7. Locking nut; 8. Steel structure limit ring; 9. Mounting groove; 10. Buffer spring; 11. Steel structure rotating rod; 12. Steel structure moving rod; 13. Steel structure outer cylinder; 14. Stainless steel spring; 15. Stainless steel annular seat; 16. Friction resistance increasing rod; 17. Resistance increasing perforation; 18. Steel structure mounting rod; 19. Placement groove; 20. Mounting cylinder; 21. Telescopic spring; 22. Push rod; 23. Resistance increasing sheet; 24. Positioning steel bar. DETAILED DESCRIPTION

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

[0031] See also Figure 1-8 In this embodiment, a building seismic isolation structure includes a steel structure base 1, a steel structure mounting platform 2, two rubber shock absorbing blocks 4, a steel hoop 5, a plurality of through holes 3, a plurality of locking screws 6, a plurality of locking nuts 7 and a plurality of positioning steel bars 24;

[0032] A plurality of equally spaced steel bars are welded to the bottom of the steel structure base 1 to facilitate the embedding and fixing of the concrete pouring platform.

[0033] A number of circular equidistantly distributed positioning steel bars 24 are movably penetrated on the steel structure base 1, and movable through-holes through which the positioning steel bars 24 pass are opened on the steel structure base 1. The outside of the several positioning steel bars 24 is wrapped with two rubber shock-absorbing blocks 4 which are combined and spliced ​​with each other, and the outside of the rubber shock-absorbing blocks 4 is fixed with steel hoops 5 by fastening screws, and a steel structure mounting platform 2 is installed between the tops of the positioning steel bars 24. The steel structure mounting platform 2 is provided with a number of circular equidistantly distributed through-holes 3, and a number of locking screws 6 passing through the through-holes 3 are installed on the top of the steel structure base 1. The locking screws 6 pass through the through-holes 3 one by one, and the outer top thread of the locking screw 6 is locked with a locking nut 7.

[0034] The steel structure mounting platform 2 is provided with a plurality of equidistantly distributed fastening rods for mounting the steel structure. The fastening rods pass through the steel structure and are locked and fixed by fastening nuts.

[0035] In this embodiment, a buffer component for reducing vertical vibration is provided between the steel structure base 1 and the steel structure mounting platform 2 .

[0036] It should be noted that the buffer assembly includes a plurality of annular mounting grooves 9 equidistantly distributed on the top of the rubber damping block 4 and a steel structure limiting ring 8 installed on the bottom of the steel structure mounting platform 2 and in contact with the outside of the rubber damping block 4 .

[0037] Wherein, a buffer spring 10 is installed in the installation groove 9 .

[0038] When the buffer spring 10 is in a normal contracted state, the top surface of the buffer spring 10 is higher than the top surface of the rubber shock absorbing block 4, and the rubber shock absorbing blocks 4 are combined and spliced ​​into a cylinder.

[0039] When the locking nut 7 is locked and limited during installation, and the steel structure installation platform 2 is in the maximum upward movement state, the steel structure limiting ring 8 and the rubber shock absorbing block 4 are inseparable.

[0040] The steel structure mounting platform 2 in this embodiment is provided with a buffer shock absorber which converts the vertical vibration impact force into the lateral vibration impact force.

[0041] It should be noted that the buffer shock absorber includes a plurality of steel structure rotating rods 11 rotatably connected to the bottom of the steel structure mounting platform 2 and distributed in a circular shape and at equal distances. The other end of the steel structure rotating rod 11 is rotatably connected to a steel structure moving rod 12. The outside of the steel structure moving rod 12 is slidably connected to a steel structure outer cylinder 13. The other end of the steel structure moving rod 12 is installed with a stainless steel spring 14 placed in the steel structure outer cylinder 13 through a fastening screw.

[0042] The steel structure rotating rod 11, the steel structure mounting platform 2 and the steel structure moving rod 12 all rotate up and down.

[0043] The steel structure outer cylinder 13 is a hollow cylinder. A cover passed through the steel structure moving rod 12 is installed at the opening of the steel structure outer cylinder 13 by fastening screws. The cover limits the stainless steel spring 14 and places it out. The stainless steel spring 14 can be disassembled and replaced by opening the cover.

[0044] A stainless steel annular seat 15 is installed between the other ends of the steel structure outer cylinder 13 .

[0045] The buffer shock absorber in this embodiment is provided with a friction resistance increasing device to mitigate the vibration amplitude.

[0046] It should be noted that the friction resistance increasing device includes a friction resistance increasing rod 16 installed on the other end of the steel structure moving rod 12, penetrating the steel structure outer tube 13 and the stainless steel annular seat 15 and extending to the outside of the stainless steel annular seat 15, and a resistance increasing through hole 17 is opened on the friction resistance increasing rod 16.

[0047] The stainless steel annular seat 15 is provided with a plurality of annular connection seats which are equally spaced and fixed to the concrete floor by screws.

[0048] Among them, a number of steel structure mounting rods 18 passing through the resistance increasing through holes 17 are installed on the outside of the stainless steel annular seat 15 by fastening screws. The steel structure mounting rods 18 pass through the resistance increasing through holes 17 one by one. Resistance increasing plates 23 in contact with the friction resistance increasing rod 16 are provided on the front and rear sides of the steel structure mounting rods 18. An elastic part is provided between the steel structure mounting rods 18 and the resistance increasing plates 23 to ensure that the friction resistance increasing rod 16 and the resistance increasing plates 23 fit tightly.

[0049] The elastic part includes placement grooves 19 opened on the front and rear sides of the steel structure mounting rod 18 for placing the resistance-increasing plate 23. A plurality of mounting tubes 20 equidistantly distributed between the placement grooves 19 are embedded in the steel structure mounting rod 18. Telescopic springs 21 are installed on the left and right sides of the inside of the mounting tube 20. A push rod 22 in contact with the resistance-increasing plate 23 is installed at the other end of the telescopic spring 21.

[0050] The resistance increasing sheet 23 can be replaced by dismantling the steel structure installation rod 18 , thereby ensuring the contact friction resistance increasing effect between the resistance increasing sheet 23 and the friction resistance increasing rod 16 .

[0051] When the telescopic spring 21 is in the extended state, the resistance increasing sheet 23 and the placement groove 19 are inseparable.

[0052] The working principle of the above embodiment is:

[0053] The steel structure mounting platform 2 is provided to install and fix the steel structure in cooperation with the fastening screws, and the locking screw 6 provided in cooperation passes through the through hole 3 on the steel structure mounting platform 2 and locks the locking nut 7, so that when the steel structure mounting platform 2 is installed and fixed, when the steel structure mounting platform 2 vibrates, the steel structure mounting platform 2 moves up and down to compress and buffer the buffer spring 10, and when the steel structure mounting platform 2 moves down and contacts the rubber shock-absorbing block 4, further compression and buffering are performed to avoid direct force and shock absorption of the rubber shock-absorbing block 4, thereby reducing the service life of the rubber shock-absorbing block 4. At the same time, the steel hoop 5 provided in cooperation with the two rubber shock-absorbing blocks 4 is installed and fixed by screw combination, so that the rubber shock-absorbing block 4 and the buffer spring 10 in the rubber shock-absorbing block 4 are conveniently inspected and replaced regularly (it should be noted that the positioning steel bar 24 on the steel structure mounting platform 2 passes through the steel structure base 1 and cooperates with the locking screw to realize the directional up and down movement of the steel structure mounting platform 2);

[0054] In addition, the stainless steel annular seat 15 is installed on the concrete base by fastening screws. When the steel structure mounting platform 2 vibrates, the steel structure mounting platform 2 moves downward, driving the steel structure rotating rod 11 to rotate, thereby pushing the steel structure moving rod 12 to move in a directional manner in the steel structure outer tube 13. At the same time, the stainless steel spring 14 is compressed to convert the vertical pressure of the vibration into a lateral pressure to buffer the pressure. At the same time, the movement of the steel structure moving rod 12 synchronously drives the friction resistance increasing rod 16 to move. Since the set steel structure mounting rod 18 passes through the resistance increasing through hole 17 on the friction resistance increasing rod 16, the push rod 22 is pushed under the elastic expansion and contraction action of the telescopic spring 21 so that it pushes the resistance increasing plate 23 to always fit the friction resistance increasing rod 16, ensuring that the friction resistance increasing rod 16 is driven to move left and right with the vibration, while the friction with the resistance increasing plate 23 increases the resistance to alleviate the vibration amplitude, thereby helping to improve the seismic isolation effect (it should be noted that the stainless steel annular seat 15 is installed on the concrete floor to become a lateral force point).

Claims

1. A building seismic isolation structure, comprising a steel structure base (1), a steel structure mounting platform (2), two rubber shock absorbing blocks (4), a steel hoop (5), a plurality of through holes (3), a plurality of locking screws (6), a plurality of locking nuts (7) and a plurality of positioning steel bars (24); A plurality of positioning steel bars (24) are movably inserted through the steel structure base (1), and the exterior of the plurality of positioning steel bars (24) is wrapped with two rubber shock-absorbing blocks (4) which are assembled and spliced ​​together. A steel structure mounting platform (2) is installed between the tops of the positioning steel bars (24), and a plurality of through holes (3) are opened on the steel structure mounting platform (2). A plurality of locking screws (6) are installed on the top of the steel structure base (1), and a locking nut (7) is threadedly locked on the exterior top of the locking screws (6); Features: A buffer component for reducing vertical vibration is provided between the steel structure base (1) and the steel structure mounting platform (2); The steel structure mounting platform (2) is provided with a buffer shock absorber for converting vertical vibration impact force into lateral vibration impact force; The buffer shock absorber is provided with a friction resistance increasing device to alleviate the vibration amplitude.

2. A building seismic isolation structure according to claim 1, characterized in that: The buffer assembly comprises a plurality of mounting grooves (9) provided on the top of the rubber damping block (4) and a steel structure limiting ring (8) mounted on the bottom of the steel structure mounting platform (2) and in contact with the outside of the rubber damping block (4); Wherein, a buffer spring (10) is installed in the installation groove (9).

3. The building seismic isolation structure according to claim 1, characterized in that: The buffer shock absorber comprises a plurality of steel structure rotating rods (11) rotatably connected to the bottom of the steel structure mounting platform (2) and distributed in a circular shape and at equal distances; the other end of the steel structure rotating rod (11) is rotatably connected to a steel structure moving rod (12); the outside of the steel structure moving rod (12) is slidably connected to a steel structure outer cylinder (13); the other end of the steel structure moving rod (12) is mounted with a stainless steel spring (14) placed in the steel structure outer cylinder (13) via a fastening screw; A stainless steel annular seat (15) is installed between the other ends of the steel structure outer cylinder (13).

4. The building seismic isolation structure according to claim 3, characterized in that: The friction resistance increasing device comprises a friction resistance increasing rod (16), and a resistance increasing through hole (17) is formed on the friction resistance increasing rod (16); A plurality of steel structure mounting rods (18) passing through the resistance increasing through holes (17) are mounted on the outside of the stainless steel annular seat (15) by means of fastening screws; resistance increasing plates (23) in contact with the friction resistance increasing rod (16) are arranged on the front and rear sides of the steel structure mounting rod (18); and an elastic member is arranged between the steel structure mounting rod (18) and the resistance increasing plate (23) to ensure that the friction resistance increasing rod (16) and the resistance increasing plate (23) are tightly fitted.

5. The building seismic isolation structure according to claim 4, characterized in that: The elastic member comprises a placement groove (19), a plurality of installation tubes (20) equidistantly distributed between the placement grooves (19) are embedded in the steel structure installation rod (18), telescopic springs (21) are installed on both left and right sides of the installation tube (20), and a push rod (22) in contact with the resistance increasing plate (23) is installed at the other end of the telescopic spring (21).

6. The building seismic isolation structure according to claim 5, characterized in that: When the telescopic spring (21) is in an extended state, the resistance increasing sheet (23) and the placement groove (19) are inseparable.

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