A corrugated steel plate shock absorption and isolation energy dissipation foundation device for masonry structure
By using corrugated steel plate seismic isolation and energy dissipation foundation devices in masonry buildings, the problems of insufficient applicability and incomplete seismic resistance of existing technologies for heavy masonry buildings have been solved, achieving the effect of masonry buildings not being damaged in minor earthquakes, being repairable in moderate earthquakes, and not collapsing in major earthquakes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GANSU TIEKE GEOLOGICAL HAZARD PREVENTION & CURE TECH ENG CO
- Filing Date
- 2025-04-03
- Publication Date
- 2026-06-19
Smart Images
Figure CN224378928U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building vibration reduction technology, and in particular to a corrugated steel plate vibration reduction and energy dissipation foundation device for masonry structures. Background Technology
[0002] Watchtower clusters are a unique architectural form found in the ethnic minority areas of Southwest China. They are primarily stone masonry structures, especially those with significant self-weight and important protective value. The areas where these watchtowers are located typically have complex geological formations and intense neotectonic activity. Furthermore, the sites of these watchtower clusters are situated on active fault zones, leading to frequent seismic activity in the surrounding area and significantly impacting the stability of the mountains where the watchtower clusters are located.
[0003] If a watchtower exhibits tilting, partial damage, or collapse, it will crumble in the event of an earthquake, causing irreparable damage. Therefore, appropriate reinforcement measures are urgently needed. Foundation underpinning is a commonly used engineering technique for improving or reinforcing building foundations. Its purpose is to enhance the stability and bearing capacity of the foundation, thereby ensuring the safety and service life of the building. However, the foundation used for underpinning is a typical raft foundation. Raft foundations have drawbacks, including the difficulty in controlling settlement, which can easily lead to uneven settlement. Furthermore, they require high soil bearing capacity and are applicable only to limited soil conditions.
[0004] A Chinese patent with publication number CN214940336U discloses a vibration-damping foundation for a building. This technology involves excavating a pit in the building foundation; placing a bottom precast foundation in the pit; placing a bottom vibration-damping pad on the bottom precast foundation; placing an intermediate precast foundation on the bottom vibration-damping pad, with the top surface of the bottom precast foundation and the bottom surface of the intermediate precast foundation in a concave-convex fit; placing an intermediate vibration-damping pad on the intermediate precast foundation; placing an upper precast foundation on the intermediate vibration-damping pad, with the bottom surface of the upper precast foundation and the top surface of the intermediate precast foundation in a concave-convex fit; placing an upper vibration-damping pad on the upper precast foundation; placing a foundation beam on the upper vibration-damping pad; and finally, attaching a cast-in-place floor slab to the foundation beam.
[0005] The technical defects of this existing technology are as follows:
[0006] (1) This technology is more suitable for ordinary building structures and is not applicable to heavy stone masonry, especially large cultural relic buildings.
[0007] (2) The seismic isolation bearing proposed by this technology only considers vertical and lateral damping, and has less consideration for longitudinal damping, and does not have comprehensive seismic resistance. Summary of the Invention
[0008] In order to overcome or alleviate one or more of the above technical problems, the purpose of this utility model is to provide a corrugated steel plate seismic isolation and energy dissipation foundation device for masonry structures. It has a corrugated steel plate seismic isolation and energy dissipation foundation. This seismic isolation and energy dissipation foundation device is suitable for the seismic isolation function of masonry building structures and can be used to replace the original foundation, improve its seismic resistance and stability, and achieve the purpose of no damage in small earthquakes, repairable in moderate earthquakes, and no collapse in large earthquakes.
[0009] This utility model provides the following technical solution:
[0010] A corrugated steel plate seismic isolation and energy dissipation foundation device for a masonry structure comprises, from top to bottom, a first concrete ring beam (1), a first seismic isolation layer (2), an energy dissipation layer (3), a second seismic isolation layer (4), and a second concrete ring beam (5). The first and second concrete ring beams are both cast in concrete. The first and second seismic isolation layers have the same structure and are used to reduce the force of seismic vibration on the upper masonry structure. The energy dissipation layer (3) includes a corrugated steel plate (9) for dissipating seismic energy through plastic deformation.
[0011] According to some embodiments, the corrugated steel plate (9) is fixed to the steel ring beam (11) by fixing bolts (8).
[0012] According to some implementation methods, both the first and second vibration isolation layers include several layers of interleaved rubber sheets (6) and steel plates (7).
[0013] According to some implementations, the first and second vibration isolation layers are connected by PBL shear studs (10) pre-fixed to the steel ring beam (11).
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] 1) This utility model proposes a corrugated steel plate vibration-damping and energy-dissipating foundation for masonry building structures. This vibration-damping and energy-dissipating foundation device is suitable for the vibration-damping and isolation functions of masonry building structures and can be used to replace the original foundation. It has a five-layer hamburger-like structure consisting of a concrete ring beam, a vibration-damping and isolation layer, an energy-dissipating layer, another vibration-damping and isolation layer, and a concrete ring beam. It can not only isolate small earthquakes, but also dissipate the energy of large earthquakes that cannot be completely isolated based on the concept of a fuse, thus improving the overall seismic resistance of the superstructure and having a certain degree of comprehensiveness.
[0016] 2) This utility model is a shock-absorbing and energy-dissipating foundation installed at the bottom of a stone masonry cultural relic building structure, which is composed of a corrugated steel plate energy-dissipating layer, a rubber-steel plate vibration-damping layer and a concrete ring beam. However, the foundation device can be used for building structures of the same structural type, and it has strong universality.
[0017] 3) This utility model is based on a performance-driven, multi-stage deformation energy dissipation design concept. During minor earthquakes, the vibration-damping layer formed by the rubber-steel plate composite resists the earthquake, significantly reducing the impact on the stone masonry structure, thus ensuring no damage during minor earthquakes. During moderate earthquakes, the energy is dissipated through the plastic deformation of the corrugated steel plate, and the corrugated steel plate can be replaced with bolts after the earthquake, thus enabling repair after moderate earthquakes. During major earthquakes, the vibration-damping layer and the energy dissipation layer work together to isolate and dissipate earthquake energy, thereby ensuring the integrity of the stone masonry structure and ensuring it does not collapse during major earthquakes. Attached Figure Description
[0018] Figure 1 A schematic diagram of the assembled corrugated steel plate shock-absorbing and energy-dissipating foundation for masonry building structures provided in this utility model example.
[0019] Figure 2 An exploded view of the corrugated steel plate shock-absorbing and energy-dissipating foundation for masonry building structures provided in this utility model example.
[0020] Figure 3 A schematic diagram illustrating the structure of the vibration damping and isolation layer provided in this utility model example.
[0021] Figure 4 A schematic diagram of the energy-consuming layer provided for this utility model embodiment.
[0022] Figure 5 An installation diagram of a corrugated steel plate vibration damping and energy dissipation foundation for a masonry building structure provided as an example of this utility model.
[0023] In the picture:
[0024] 1. First concrete ring beam; 2. First seismic isolation layer; 3. Energy dissipation layer; 4. Second seismic isolation layer; 5. Second concrete ring beam; 6. Rubber sheet; 7. Steel plate; 8. Fixing bolt; 9. Corrugated steel plate; 10. PBL shear nail; 11. Steel ring beam; 12. Masonry building structure; 13. Foundation. Detailed Implementation
[0025] The present invention will be described in detail below with reference to examples and accompanying drawings. However, it should be understood that the examples and drawings are for illustrative purposes only and do not constitute any limitation on the scope of protection of the present invention. All reasonable modifications and combinations that fall within the scope of the inventive spirit of the present invention are within the scope of protection of the present invention.
[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "front," and "rear," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0027] The present invention will be further described below with reference to the accompanying drawings.
[0028] This example provides a corrugated steel plate seismic isolation and energy dissipation foundation device for masonry structures, hereinafter referred to as the seismic isolation and energy dissipation foundation device. This seismic isolation and energy dissipation foundation device has a five-layer hamburger structure. The top layer is a ring beam formed by cast concrete, used to bear the weight from the building structure. The second layer is a seismic isolation layer composed of stacked steel plates and rubber sheets, used to reduce the impact of earthquakes on the superstructure. The third layer is an energy dissipation layer composed of corrugated steel plates and a steel ring beam, which dissipates seismic energy through the plastic deformation of the core corrugated steel plate. The fourth and bottom layers are also seismic isolation layers and concrete ring beams.
[0029] like Figures 1-2 The vibration damping and energy dissipation foundation device consists of, from top to bottom, the first concrete ring beam 1, the first vibration damping and isolation layer 2, the energy dissipation layer 3, the second vibration damping and isolation layer 4, and the second concrete ring beam 5. The first and second vibration damping and isolation layers are constructed by setting a rubber layer under the steel plate; the energy dissipation layer 3 is a corrugated steel plate.
[0030] The first concrete ring beam 1 on the upper level is for connecting with the stone masonry cultural relic building structure above, and the second concrete ring beam 5 on the lower level is for connecting with the foundation below.
[0031] The energy dissipation layer 3 is located in the middle layer of the vibration damping and energy dissipation foundation device, with the first vibration isolation layer 2 and the second vibration isolation layer 4 above and below it, respectively.
[0032] like Figure 3The first and second seismic isolation layers are both composed of stacked rubber sheets 6 and steel plates 7, with two sets of cross-stacked rubber sheets 6 and steel plates 7 from top to bottom. The rubber sheets 6 and steel plates 7 can be stacked in multiple layers, and the number of stacked layers is determined by the weight of the upper masonry structure.
[0033] like Figure 4 The energy dissipation layer 3 is composed of corrugated steel plate 9 and steel ring beam 11. The corrugated steel plate 9 and steel ring beam 11 are connected by fixing bolts 8. PBL shear nails 10 are pre-welded to the steel ring beam 11 to better fix the first and second vibration isolation layers and connect the first and second concrete ring beams.
[0034] A schematic diagram of a vibration damping and energy dissipation foundation device for masonry building structures is shown below. Figure 5 As shown, the upper part is a stone masonry building structure 12, and the lower part is a foundation 13.
[0035] When an earthquake occurs, the earthquake is transmitted from the foundation 3 to the vibration damping and energy dissipation foundation device provided in this embodiment. The vibration damping and energy dissipation foundation device weakens and dissipates part of the earthquake vibration before transmitting it to the masonry building structure 12.
[0036] like Figure 2 When seismic vibrations are transmitted to the damping and energy-dissipating foundation, the overall vibration period of the structure is altered by the first damping and isolation layer 2 and the second damping and isolation layer 4, thus reducing the impact of the seismic vibrations. Seismic vibrations that cannot be dampened are transmitted to the energy-dissipating layer 3.
[0037] like Figure 4 The steel ring beam 11 will undergo significant deformation under seismic loading, which will cause the corrugated steel plate 9 to deform as well. Since the corrugated steel plate 9 is more prone to plastic deformation, it can dissipate seismic energy and thus further reduce the impact of earthquakes on the superstructure.
[0038] Multiple components work together to mitigate the damage to the stone masonry architectural structure caused by earthquakes.
[0039] The above examples are merely preferred embodiments of this utility model, and the protection scope of this utility model is not limited to the above examples. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that improvements and modifications made by those skilled in the art without departing from the principle of this utility model should also be considered within its protection scope.
Claims
1. A corrugated steel plate seismic mitigation and energy dissipation foundation device for masonry structures, characterized by: From top to bottom, it includes a first concrete ring beam (1), a first seismic isolation layer (2), an energy dissipation layer (3), a second seismic isolation layer (4), and then a second concrete ring beam (5). The first and second concrete ring beams are both cast in concrete. The first and second seismic isolation layers have the same structure and are used to reduce the force of earthquake vibration on the upper masonry structure. The energy dissipation layer (3) includes a corrugated steel plate (9) for dissipating earthquake energy through plastic deformation.
2. The corrugated steel plate energy dissipation base device for masonry structure according to claim 1, characterized in that: The corrugated steel plate (9) is fixed to the steel ring beam (11) by fixing bolts (8).
3. The corrugated steel plate energy dissipation base device for masonry structure according to claim 2, characterized in that: Both the first and second damping and isolation layers consist of several layers of interleaved rubber sheets (6) and steel plates (7).
4. The corrugated steel plate energy dissipation base device for masonry structures according to claim 3, characterized in that: The first and second vibration isolation layers are connected by PBL shear studs (10) that are pre-fixed to the steel ring beam (11).