Vibration double-control modular support
By designing a modular bearing with dual vibration control, and adopting elastic damping blocks and a horizontal constraint frame structure, the problem of insufficient vertical vibration reduction capacity of rubber seismic isolation bearings was solved, achieving the dual effects of vertical vibration reduction and horizontal seismic isolation, and improving the comfort of the building.
Patent Information
- Application Number
- CN202423080663.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-12-12
AI Technical Summary
Existing rubber seismic isolation bearings have limited vertical vibration reduction and isolation capabilities, which restricts their application in subway superstructures.
A modular seismic isolation bearing with dual control is designed, comprising an upper connecting plate for the seismic isolation bearing, a transition shear plate for the seismic isolation bearing, pre-compression limiting bolts, a horizontal constraint frame, elastic damping blocks, and a layer partition plate and a lower connecting plate for the seismic isolation bearing, which are fixed by bolts. The structure adopts elastic damping blocks and a horizontal constraint frame. The elastic damping blocks are pre-compressed and installed in the horizontal constraint frame to restrict their horizontal shear motion and only perform vertical vibration reduction.
It achieves vertical vibration reduction and isolation capabilities without affecting vertical load-bearing capacity and horizontal seismic isolation function, effectively dissipating vertical vibrations caused by subway traffic and earthquakes, and improving the comfort of buildings.
Smart Images
Figure CN223633781U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of building, bridge three-dimensional seismic isolation support, and specifically discloses a vibration and shock double-control modular support. BACKGROUND
[0002] Rubber seismic isolation support is widely used in various housing construction, highway bridges and structural reinforcement, and has a series of advantages such as good horizontal performance, damping coefficient, vertical performance and vertical bearing capacity by adopting excellent bonding of multiple steel plates and multiple rubber layers. With the emergence of more and more rail transit, there are more and more subway cover building modes, and the vehicle-induced vibration caused by the subway brings vertical vibration to the subway cover building, thereby affecting the comfort. The current rubber seismic isolation support can effectively isolate the horizontal vibration caused by the earthquake, but the vertical vibration reduction and isolation capacity of the rubber seismic isolation support is limited. Therefore, the deficiency of the rubber seismic isolation support limits the use range and popularization and application of the rubber seismic isolation support. SUMMARY
[0003] The utility model discloses a kind of vibration and shock double-control modular supports, which overcome the deficiencies in the prior art, and have vertical seismic isolation capacity while not affecting the vertical bearing and horizontal seismic isolation function, achieving vibration and shock double control.
[0004] According to the technical scheme provided by the utility model, the vibration and shock double-control modular support includes an isolation support upper connecting plate, an isolation support body, an isolation support transition shear plate, a pre-pressing limit bolt, a horizontal constraint frame, an elastic shock-absorbing block, an interlayer partition plate and an isolation support lower connecting plate.
[0005] The upper end of the isolation support body is fixed with the isolation support upper connecting plate, and the lower end of the isolation support body is fixed with the isolation support transition shear plate. Pre-pressing limit bolt mounting holes are formed in the side surface of the isolation support transition shear plate. The upper surface of the isolation support lower connecting plate is fixed with the horizontal constraint frame. The isolation support transition shear plate is installed in the horizontal constraint frame, and the isolation support transition shear plate and the inner wall of the horizontal constraint frame are in clearance fit.
[0006] Limiting guide grooves are formed in the side plates of the horizontal constraint frame in a vertical arrangement. The positions of the limiting guide grooves and the pre-pressing limit bolt mounting holes are matched. Pre-pressing limit bolts are arranged in the limiting guide grooves. The inner ends of the pre-pressing limit bolts are installed in the pre-pressing limit bolt mounting holes of the isolation support transition shear plate.
[0007] At least two interlayer partitions are arranged in the horizontal constraint frame, the upper surface of the uppermost interlayer partition is in contact with the lower surface of the transition shear plate of the seismic isolation support, the lower surface of the lowermost interlayer partition is in contact with the upper surface of the lower connecting plate of the seismic isolation support, the interlayer partition is in clearance fit with the inner wall of the horizontal constraint frame, at least two elastic damping blocks are arranged between the adjacent two interlayer partitions, the adjacent two elastic damping blocks are arranged in a spaced manner, and the elastic damping blocks are arranged in a spaced manner with the inner wall of the horizontal constraint frame.
[0008] As preferred, the elastic damping block is circular or square.
[0009] As preferred, the elastic damping blocks between the adjacent two interlayer partitions are arranged in a matrix or circularly.
[0010] The utility model has the following advantages:
[0011] 1, the utility model discloses simple and efficient upper and lower combined structure design, the ordinary seismic isolation rubber support of upper part combines the vibration control structure of lower part, and plays the role of double control of vibration under the condition that the structure modification is not needed on the ordinary seismic isolation rubber support.
[0012] 2, the utility model discloses the inside of lower part's vibration control structure adopts modular design, and adopts the elastic damping block (may be circular, can be square) of small size according to actual scene control frequency requirement free series connection (can be arranged in matrix, can be circularly arranged), free parallel connection (can be parallel connected 1 layer, 2 layers or multiple layers), and the degree of modularization is high, and flexible configuration is required performance.
[0013] 3, the utility model discloses the vibration control structure of lower part adopts horizontal constraint frame structure and carries out horizontal limiting, plays the role of limiting the horizontal shear movement of elastic damping block, makes elastic damping block only carry out vertical damping.
[0014] 4, the utility model discloses the elastic damping block in the vibration control structure of lower part adopts precompression process and installs in the horizontal constraint frame after a certain pressure is applied in advance, and precompression not only can offset the vertical compression displacement produced due to the quality of the structure on the support in advance, but also better maintains elasticity and stability under the action of vibration or impact force, and increases fatigue life.
[0015] 5, the utility model discloses the elastic damping block made of thick rubber block can effectively consume vibration energy, and more effectively controls low-frequency vibration. DRAWINGS
[0016] Figure 1 It is the front view of the utility model.
[0017] Figure 2is a sectional view of the utility model.
[0018] Figure 3 is a perspective view of the utility model.
[0019] Figure 4 is one of the layout of the elastic shock absorbing block in the utility model.
[0020] Figure 5 is the second layout of the elastic shock absorbing block in the utility model.
[0021] Figure 6 is the third layout of the elastic shock absorbing block in the utility model.
[0022] Figure 7 is the structure diagram of the shock insulation support body after generating horizontal displacement deformation in the utility model. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical scheme and advantage of the utility model embodiment clearer, the technical scheme of the utility model will be described clearly and completely below by combining with the drawings in the utility model embodiment, obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the protection scope of the utility model.
[0024] A shock and vibration double control modular support, as shown in Figures 1-7 It includes shock insulation support upper connecting plate 1, shock insulation support body 2, shock insulation support transition shear plate 3, pre-pressing limit bolt 4, horizontal constraint frame 5, elastic shock absorbing block 6, interlayer partition plate 7 and shock insulation support lower connecting plate 8.
[0025] The shock insulation support body 2 can generate horizontal displacement deformation, the shock insulation support upper connecting plate 1 is fixed on the upper end of the shock insulation support body 2, the shock insulation support transition shear plate 3 is fixed on the lower end of the shock insulation support body 2, the pre-pressing limit bolt mounting hole 3.1 is formed in the side of the shock insulation support transition shear plate 3; the horizontal constraint frame 5 is fixed on the upper surface of the shock insulation support lower connecting plate 8, the shock insulation support transition shear plate 3 is installed in the horizontal constraint frame 5, and the shock insulation support transition shear plate 3 and the inner wall of the horizontal constraint frame 5 are in clearance fit.
[0026] The limiting guide slot 5.1 in vertical arrangement is formed on the side plate of the horizontal constraint frame 5, and the limiting guide slot 5.1 is matched with the position of the pre-pressing limit bolt mounting hole 3.1, the pre-pressing limit bolt 4 is arranged in the limiting guide slot 5.1, and the inner end of the pre-pressing limit bolt 4 is arranged in the pre-pressing limit bolt mounting hole 3.1 of the shock insulation support transition shear plate 3.
[0027] At least two interlayer partitions 7 are arranged in the horizontal constraint frame 5, the upper surface of the uppermost interlayer partition 7 is in contact with the lower surface of the transition shear plate 3 of the seismic isolation support, the lower surface of the lowermost interlayer partition 7 is in contact with the upper surface of the lower connecting plate 8 of the seismic isolation support, the interlayer partition 7 is in clearance fit with the inner wall of the horizontal constraint frame 5, at least two elastic damping blocks 6 are arranged between adjacent two interlayer partitions 7, the adjacent two elastic damping blocks 6 between adjacent two interlayer partitions 7 are arranged in a spaced manner, and the elastic damping blocks 6 are arranged in a spaced manner with the inner wall of the horizontal constraint frame 5.
[0028] As shown in Figure 4 The elastic damping block 6 is square, and the elastic damping blocks 6 between adjacent two interlayer partitions 7 are arranged in a circular manner.
[0029] As shown in Figure 5 The elastic damping block 6 is square, and the elastic damping blocks 6 between adjacent two interlayer partitions 7 are arranged in a matrix manner.
[0030] As shown in Figure 6 The elastic damping block 6 is circular, and the elastic damping blocks 6 between adjacent two interlayer partitions 7 are arranged in a matrix manner.
[0031] The elastic damping block 6 adopts a thick rubber block.
[0032] The seismic isolation support body 2 is a well-bonded vulcanized integrated support alternately composed of multiple layers of steel plates and multiple layers of rubber.
[0033] When the seismic vibration double-control modular support is installed, the upper connecting plate 1 of the seismic isolation support, the seismic isolation support body 2 and the transition shear plate 3 of the seismic isolation support are fixed together through bolts, a vertical pre-applied pressure compresses the elastic damping block 6 by a certain deformation amount, the pre-compression limiting bolt 4 is installed in the pre-compression limiting bolt mounting hole 3.1 formed in the side of the seismic rubber support transition shear plate 3 through the limiting guide groove 5.1, and the installation is completed. The elastic damping block 6 is always in a pre-compressed state.
[0034] The working principle of the utility model is as follows:
[0035] The elastic damping block 6 is in series and is limited by the horizontal constraint frame 5 after being connected in series, and can only provide downward compression deformation, when the vertical vibration generated by the subway traffic or the earthquake is transmitted to the seismic vibration double-control combined support, the elastic damping block 6 consumes the vibration energy, and the comfort of the personnel in the building is ensured. However, when the horizontal vibration of the building is generated by the earthquake, the upper seismic isolation support body 2 can produce horizontal displacement deformation to reduce the damage to the building (such as Figure 7), isolate seismic energy. Therefore, the whole of the vibration double-control combined support can isolate horizontal vibration, can also consume vertical vibration, and plays a three-dimensional double-control role of seismic mitigation.
[0036] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the examples, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.
Claims
1. A dual control seismic module, characterized by: It includes isolation bearing upper connecting plate (1), isolation bearing body (2), isolation bearing transition shear plate (3), pre-pressing limiting bolt (4), horizontal constraint frame (5), elastic damping block (6), interlayer partition plate (7) and isolation bearing lower connecting plate (8). The isolation bearing upper connecting plate (1) is fixed to the upper end of the isolation bearing body (2), the isolation bearing transition shear plate (3) is fixed to the lower end of the isolation bearing body (2), and the pre-pressing limiting bolt mounting hole (3.1) is formed in the side of the isolation bearing transition shear plate (3); the horizontal constraint frame (5) is fixed to the upper surface of the isolation bearing lower connecting plate (8), the isolation bearing transition shear plate (3) is installed in the horizontal constraint frame (5), and the isolation bearing transition shear plate (3) is in gap cooperation with the inner wall of the horizontal constraint frame (5); The limiting guide groove (5.1) is vertically formed in the side plate of the horizontal constraint frame (5), the limiting guide groove (5.1) is matched with the position of the pre-pressing limiting bolt mounting hole (3.1), the pre-pressing limiting bolt (4) is arranged in the limiting guide groove (5.1), and the inner end of the pre-pressing limiting bolt (4) is installed in the pre-pressing limiting bolt mounting hole (3.1) of the isolation bearing transition shear plate (3); At least two interlayer partition plates (7) are arranged in the horizontal constraint frame (5), the upper surface of the uppermost interlayer partition plate (7) is in contact with the lower surface of the isolation bearing transition shear plate (3), the lower surface of the lowermost interlayer partition plate (7) is in contact with the upper surface of the isolation bearing lower connecting plate (8), the interlayer partition plate (7) is in gap cooperation with the inner wall of the horizontal constraint frame (5), at least two elastic damping blocks (6) are arranged between the adjacent two interlayer partition plates (7), the adjacent two elastic damping blocks (6) between the adjacent two interlayer partition plates (7) are arranged in a spaced manner, and the elastic damping block (6) is arranged in a spaced manner with the inner wall of the horizontal constraint frame (5).
2. The dual seismic and vibration control modular mount of claim 1, wherein: The elastic damping block (6) is circular or square.
3. The dual seismic and vibration control modular mount of claim 1, wherein: The elastic damping blocks (6) between the adjacent two interlayer partition plates (7) are arranged in a matrix or circular manner. The elastic damping blocks (6) between the adjacent two interlayer partition plates (7) are arranged in a matrix or circular manner.