Damping structure applied between seismic isolation building and non-seismic isolation building
By adding brittle precast concrete slabs to the seismic isolation joints between seismic isolation buildings and non-seismic isolation buildings, the problem of obstacles in front of the seismic isolation groove cover plate is solved, the structural joint width is reduced, the swing space of the seismic isolation building during vibration is ensured, and the damage to the main structure is avoided.
Patent Information
- Application Number
- CN202421664162.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-15
AI Technical Summary
Obstacles are prone to appear in front of the seismic isolation groove cover between existing seismic isolation buildings and non-seismic isolation buildings, which may touch objects during vibration, causing damage to the main structure, and the gap between the two buildings is too wide, making it inconvenient to use.
The shock-absorbing structure is adopted that includes seismic piers, seismic trench beams and seismic trench retaining walls, and brittle precast concrete slabs are added between the seismic slits. The precast concrete slabs are broken during vibration, ensuring sufficient swing space for the seismic slabs.
The structural joint width is reduced, the damage to the main structure and greater stress is avoided, and the swing space of the earthquake-isolated building during vibration is ensured, while maintaining the smoothness and waterproof performance of the building.
Smart Images
Figure CN222797186U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of seismic isolation buildings, and in particular relates to a structure for reducing the distance between seismic isolation buildings and non-seismic isolation buildings. Background Art
[0002] For building structures with three floors or more, if seismic isolation technology is not used, the conventional beam and column sections often cannot meet the seismic fortification requirements. Under the influence of this factor, seismic isolation technology is currently used in multi-story schools, hospitals and other buildings in high-intensity areas.
[0003] The design principle of seismic isolation buildings is to separate the superstructure from the foundation and the ground. When an earthquake occurs, the natural seismic cycle is extended through different vibrations, reducing the horizontal seismic effect input to the superstructure. In the case where the seismic isolation layer is set between the foundation and the superstructure, a seismic isolation trench needs to be set around the building to ensure that the superstructure is separated from the main body and can vibrate freely. At the same time, the cover plate set above the seismic isolation trench should ensure that there are no obstacles in front, and will not hit objects during vibration to avoid damage to the main structure.
[0004] If the seismic isolation building is an independent building with no other buildings around it, it is only necessary to set up a circle of seismic isolation trenches around the building. If two adjacent buildings are both seismically isolated, this can be achieved by merging the seismic isolation trenches. However, if the seismic isolation building is adjacent to a non-seismic isolation building, in order to achieve no obstacles in front of the seismic isolation trench cover, the main structure of the non-seismic isolation needs to retreat a specified distance outside the seismic isolation trench. This practice has a great impact on the building's plan layout, and the gap between the two buildings is too wide, which is extremely inconvenient to use. Utility Model Content
[0005] In order to solve the technical problems existing in the prior art, the utility model provides a shock-absorbing structure applied between a seismic isolation building and a non-seismic isolation building, which reduces the width of the structural seam and does not affect the main structure.
[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a seismic isolation structure used between a seismic isolation building and a non-seismic isolation building, including seismic isolation piers, seismic isolation floor beams and seismic isolation trench retaining walls, the seismic isolation piers are placed at the bottom, the seismic isolation piers and the seismic isolation floor beams are supported by seismic isolation pads, the top of the seismic isolation trench retaining wall is equipped with a non-seismic isolation floor beam, and a seismic isolation joint is formed between the seismic isolation trench retaining wall and the seismic isolation piers.
[0007] A first steel plate is pre-buried on the seismic isolation floor beam, and the first steel plate is arranged along the length direction of the seismic isolation joint.
[0008] A second steel plate is pre-embedded on the non-seismic isolation floor beam, the second steel plate is arranged along the length direction of the seismic isolation joint, and the first steel plate and the second steel plate are arranged symmetrically.
[0009] A first base is provided on the seismic isolation floor beam, and a second base is provided on the non-seismic isolation floor beam. The first base and the second base are arranged symmetrically. A precast concrete slab is installed between the first steel plate and the second steel plate. One end of the precast concrete slab is placed on the first base, and the other end of the precast concrete slab is placed on the second base. The precast concrete slab is arranged horizontally. The precast concrete slab is made of brittle concrete material. When squeezed, the precast concrete slab breaks, thereby ensuring that the seismic isolation floor has sufficient swing space when vibrating.
[0010] A plurality of first bolts are arranged on the front side of the first steel plate, the first bolts are arranged horizontally, the plurality of first bolts are arranged equidistantly along the length direction of the first steel plate, and the plurality of first bolts are pressed against one side of the precast concrete slab; a plurality of second bolts are arranged on the front side of the second steel plate, the second bolts are arranged horizontally, the plurality of second bolts are arranged equidistantly along the length direction of the second steel plate, and the plurality of second bolts are pressed against the other side of the precast concrete slab.
[0011] The precast concrete panel and the first steel panel are caulked with sealant, the precast concrete panel and the first base are caulked with sealant, the precast concrete panel and the second steel panel are caulked with sealant, and the precast concrete panel and the second base are caulked with sealant. In the absence of vibration, the sealant caulking structure can ensure the sealing performance of the precast concrete panel.
[0012] A plurality of first embedded bars are provided on the back of the first steel plate, and the plurality of first embedded bars are fixed to the first steel plate by means of perforated plug welding, and the plurality of first embedded bars are fixed in a pre-embedded manner in the seismic isolation floor beam; a second embedded bar is provided on the back of the second steel plate, and the plurality of second embedded bars are fixed to the second steel plate by means of perforated plug welding, and the plurality of second embedded bars are fixed in a pre-embedded manner in the non-seismic isolation floor beam.
[0013] In order to ensure the crushing effect on the precast concrete slab, the first bolt is placed in the middle of the first steel plate, and the second bolt is placed in the middle of the second steel plate.
[0014] Compared with the prior art, the utility model has the following specific beneficial effects: the utility model adds brittle precast concrete slabs between the seismic isolation joints; when an earthquake does not occur, the precast concrete slabs are laid flat on the first base and the second base, and the precast concrete slabs have built-in steel bars to ensure the safe passage of pedestrians; when an earthquake occurs, the precast concrete slabs are flexibly connected; when an earthquake occurs, the main structure vibrates, and the precast concrete slabs collide with the bolts on both sides and break, having active crushing capabilities; the precast concrete slabs will not generate structural internal forces such as bending moment and shear force, ensuring that the seismic isolation main body has sufficient swinging space in the seismic isolation joints, and the precast concrete slabs will not damage the main structures on both sides, and will not generate large stress on the main structures on both sides.
[0015] In addition, the precast concrete panels and the main structures on both sides are caulked with building sealants to ensure that the building has good waterproof performance. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural schematic diagram of the utility model.
[0017] Figure 2 for Figure 1 Schematic diagram of the structure of the first steel plate.
[0018] Figure 3 for Figure 1 A partial enlarged view of point A in the middle.
[0019] Figure 4 for Figure 1 A partial enlarged view of point B in the middle.
[0020] In the figure, 1 is the seismic isolation pier column, 2 is the seismic isolation floor beam, 21 is the first base, 3 is the seismic isolation trench retaining wall, 4 is the seismic isolation pad, 5 is the non-seismic isolation floor beam, 51 is the second base, 6 is the seismic isolation joint, 7 is the first steel plate, 71 is the first stud, 72 is the first embedded reinforcement, 8 is the second steel plate, 81 is the second stud, 82 is the second embedded reinforcement, and 9 is the precast concrete slab. DETAILED DESCRIPTION
[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0022] like Figure 1-4 As shown, a seismic isolation structure used between a seismic isolation building and a non-seismic isolation building includes a seismic isolation pier column 1, a seismic isolation floor beam 2 and a seismic isolation trench retaining wall 3. The seismic isolation pier column 1 is placed at the bottom, and the seismic isolation pier column 1 and the seismic isolation floor beam 2 are supported by seismic isolation pads 4. The top of the seismic isolation trench retaining wall 3 is equipped with a non-seismic isolation floor beam 5, and a seismic isolation joint 6 is formed between the seismic isolation trench retaining wall 3 and the seismic isolation pier column 1.
[0023] A first steel plate 7 is pre-buried on the seismic isolation floor beam 2 , and the first steel plate 7 is arranged along the length direction of the seismic isolation joint 6 .
[0024] A second steel plate 8 is pre-embedded on the non-seismic isolation floor beam 5 . The second steel plate 8 is arranged along the length direction of the seismic isolation joint 6 . The first steel plate 7 and the second steel plate 8 are arranged symmetrically.
[0025] A first base 21 is provided on the seismic isolation floor beam 2, and a second base 51 is provided on the non-seismic isolation floor beam 5. The first base 21 and the second base 51 are arranged symmetrically. A precast concrete slab 9 is installed between the first steel plate 7 and the second steel plate 8. One end of the precast concrete slab 9 is placed on the first base 21, and the other end of the precast concrete slab 9 is placed on the second base 51. The precast concrete slab 9 is arranged horizontally. The precast concrete slab 9 is made of brittle concrete. The precast concrete slab 9 can be a foam concrete slab. When squeezed, the precast concrete slab 9 is broken, thereby ensuring that the seismic isolation floor has sufficient swing space when vibrating.
[0026] A plurality of first bolts 71 are arranged on the first steel plate 7, the first bolts 71 are arranged horizontally, and the plurality of first bolts 71 are arranged equidistantly along the length direction of the first steel plate 7, and the plurality of first bolts 71 are pressed against one side of the precast concrete slab 9; a plurality of second bolts 81 are arranged on the second steel plate 8, the second bolts 81 are arranged horizontally, and the plurality of second bolts 81 are arranged equidistantly along the length direction of the second steel plate 8, and the plurality of second bolts 81 are pressed against the other side of the precast concrete slab 9.
[0027] The precast concrete panel 9 and the first steel panel 7 are caulked with building sealant, the precast concrete panel 9 and the first base 21 are caulked with building sealant, the precast concrete panel 9 and the second steel panel 8 are caulked with building sealant, and the precast concrete panel 9 and the second base 51 are caulked with building sealant. In the absence of vibration, the sealant caulking structure can ensure the sealing performance of the precast concrete panel 9.
[0028] A plurality of first embedded ribs 72 are provided on the back of the first steel plate 7, and the plurality of first embedded ribs 72 are fixed to the first steel plate 7 by means of perforated plug welding, and the plurality of first embedded ribs 72 are fixed in the seismic isolation floor beam 2 in a pre-embedded manner. A second embedded rib 82 is provided on the back of the second steel plate 8, and the plurality of second embedded ribs 82 are fixed to the second steel plate 8 by means of perforated plug welding, and the plurality of second embedded ribs 82 are fixed in the non-seismic isolation floor beam 5 in a pre-embedded manner.
[0029] In order to ensure the crushing effect on the precast concrete slab 9 , the first bolt 71 is placed in the middle of the first steel plate 7 , and the second bolt 81 is placed in the middle of the second steel plate 8 .
[0030] The utility model adds a brittle precast concrete slab 9 between the seismic isolation joints 6. When an earthquake does not occur, the precast concrete slab 9 is laid flat on the first base 21 and the second base 51. The precast concrete slab 9 has built-in steel bars, and the building plane is flat and can be used normally, ensuring the safe passage of pedestrians without causing a major structural impact on the main structure.
[0031] The top of the seismic isolation joint 6 is covered by a precast concrete slab 9, abandoning the traditional steel plate structure. The precast concrete slab 9 and the main structure on both sides are caulked by building sealant to ensure the sealing and waterproof performance of the structural joint.
[0032] The precast concrete slab 9 is connected flexibly. When an earthquake occurs, the main structure vibrates, but the precast concrete slab 9 will not generate internal forces such as bending moment and shear force of the structure. The precast concrete slab 9 collides with the bolts on both sides and breaks actively, ensuring that the seismic isolation body has enough swing space in the seismic isolation joint 6, reducing the width of the structural joint, and the precast concrete slab 9 will not damage the main structure on both sides, and will not generate large stress on the main structure on both sides. In addition, after the earthquake, the precast concrete slab 9 only collides with the first steel plate 7 and the second steel plate 8, and only indentations appear on the steel plates on both sides, and the main structure is not damaged.
[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the scope of the present invention.
Claims
1. A seismic isolation structure used between a seismic isolation building and a non-seismic isolation building, comprising a seismic isolation pier column (1), a seismic isolation floor beam (2) and a seismic isolation trench retaining wall (3), wherein the seismic isolation pier column (1) and the seismic isolation floor beam (2) are supported by seismic isolation pads (4), a non-seismic isolation floor beam (5) is installed on the top of the seismic isolation trench retaining wall (3), and a seismic isolation joint (6) is formed between the seismic isolation pier column (1), characterized in that: A first steel plate (7) is pre-buried on the seismic isolation floor beam (2), and the first steel plate (7) is arranged along the length direction of the seismic isolation joint (6); A second steel plate (8) is pre-embedded on the non-seismic isolation floor beam (5), the second steel plate (8) is arranged along the length direction of the seismic isolation joint (6), and the first steel plate (7) and the second steel plate (8) are arranged symmetrically; A first base (21) is provided on the seismic isolation floor beam (2), and a second base (51) is provided on the non-seismic isolation floor beam (5), the first base (21) and the second base (51) are symmetrically arranged, a precast concrete slab (9) is installed between the first steel plate (7) and the second steel plate (8), one end of the precast concrete slab (9) is placed on the first base (21), and the other end of the precast concrete slab (9) is placed on the second base (51); A plurality of first bolts (71) are arranged on the first steel plate (7), the plurality of first bolts (71) are arranged at equal intervals along the length direction of the first steel plate (7), and the plurality of first bolts (71) are pressed against one side of the precast concrete plate (9); a plurality of second bolts (81) are arranged on the second steel plate (8), the plurality of second bolts (81) are arranged at equal intervals along the length direction of the second steel plate (8), and the plurality of second bolts (81) are pressed against the other side of the precast concrete plate (9).
2. The seismic isolation structure used between a seismic isolation building and a non-seismic isolation building according to claim 1, characterized in that: Sealant is used to caulk the precast concrete panel (9) and the first steel panel (7), sealant is used to caulk the precast concrete panel (9) and the first base (21), sealant is used to caulk the precast concrete panel (9) and the second steel panel (8), and sealant is used to caulk the precast concrete panel (9) and the second base (51).
3. The seismic isolation structure used between a seismic isolation building and a non-seismic isolation building according to claim 1, characterized in that: The back of the first steel plate (7) is provided with a plurality of first embedded bars (72), and the plurality of first embedded bars (72) are placed in the seismic isolation floor beam (2); the back of the second steel plate (8) is provided with second embedded bars (82), and the plurality of second embedded bars (82) are placed in the non-seismic isolation floor beam (5).
4. The shock absorbing structure used between a seismic isolation building and a non-seismic isolation building according to claim 3, characterized in that: The first bolt (71) is placed in the middle of the first steel plate (7), and the second bolt (81) is placed in the middle of the second steel plate (8).