Split-level seismic isolation structure

Abstract

The utility model provides a split-level shock insulation structure, which belongs to the technical field of building shock insulation and comprises a foundation, an underground shock insulation layer and an overground shock insulation layer. The underground shock insulation layer and the overground shock insulation layer are both located above the foundation. The underground shock insulation layer is located in a shock insulation groove of the non-overhead part of the building, and an underground shock insulation device is arranged in the underground shock insulation layer and connected with the foundation and the first-layer supporting structure. The overground shock insulation layer is located at the overhead part of the building, and an overground shock insulation device is arranged in the overground shock insulation layer and connected with the foundation and the overhead supporting structure; the underground shock isolation device and the overground shock isolation device each comprise a shock isolation support. According to the split-level seismic isolation structure, split-level seismic isolation is achieved, an underground seismic isolation layer in an overhead area is omitted, and an overground seismic isolation layer is arranged for the overhead area; the construction difficulty of the junction part is avoided, meanwhile, the construction cost of the shock insulation layer of the overhead area is reduced, and construction is facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of building seismic isolation technology, and more specifically, it relates to a staggered seismic isolation structure. Background Technology

[0002] To simplify the seismic isolation structure of the infill wall and facilitate construction, seismic isolation buildings generally choose to set up a separate seismic isolation layer between the basement and the ground floor or on the ground floor. However, for buildings with a partially open ground floor, the practice of using a seismic isolation structure on the same floor is now more common. But setting up a seismic isolation structure on the same floor will lead to problems such as complex connections at the junction of the open and non-open ground floors and the perimeter of the non-open ground floor, as well as high costs for the seismic isolation layer in the open ground floor area. Therefore, the above-mentioned practice of setting up a separate seismic isolation layer is not suitable. Utility Model Content

[0003] The purpose of this utility model is to provide a staggered seismic isolation structure, which aims to simplify the seismic isolation construction of the first floor with a partial elevated floor and reduce the cost of the seismic isolation layer in the elevated floor area.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A staggered-level seismic isolation structure is provided, comprising a foundation, an underground seismic isolation layer, and an above-ground seismic isolation layer; both the underground and above-ground seismic isolation layers are located above the foundation; the underground seismic isolation layer is located within a seismic isolation trench in the non-elevated portion of the building, and contains an underground seismic isolation device that connects the foundation and the first-floor support structure; the above-ground seismic isolation layer is located in the elevated portion of the building, and contains an above-ground seismic isolation device that connects the foundation and the elevated support structure; both the underground and above-ground seismic isolation devices include seismic isolation bearings.

[0005] As another embodiment of this application, both the underground seismic isolation device and the above-ground seismic isolation device include seismic isolation support columns, each seismic isolation support column having a lower support pier and an upper support pier; the lower support pier is connected to the foundation, the upper support pier is connected to the first-floor support structure or the overhead support structure, and the seismic isolation support is located between the lower support pier and the upper support pier.

[0006] In another embodiment of this application, the seismic isolation bearing is located in the middle of the seismic isolation support column.

[0007] In another embodiment of this application, the seismic isolation support column in the underground seismic isolation layer is coaxially arranged with the structural column above the first-floor support structure, and the seismic isolation support column in the above-ground seismic isolation layer is coaxially arranged with the structural column above the overhead support structure.

[0008] As another embodiment of this application, the underground seismic isolation device further includes a seismic isolation beam, a seismic isolation layer, and a seismic isolation probe. The seismic isolation beam is used to support the seismic isolation layer and is connected to the support pier of the underground seismic isolation device. The seismic isolation beam has a seismic isolation probe extending outward on the side near the edge of the seismic isolation trench, and the seismic isolation probe covers the edge of the seismic isolation trench.

[0009] As another embodiment of this application, there is a longitudinal gap between the seismic isolation probe and the upper surface of the outer structure of the seismic isolation trench.

[0010] In another embodiment of this application, the upper surface of the outer structure of the seismic isolation trench protrudes from the outdoor ground level.

[0011] In another embodiment of this application, the foundation includes a foundation structure and a foundation beam, wherein the foundation beam connects two adjacent foundation structures; and the support pier is connected to the foundation structure.

[0012] The beneficial effects of the staggered seismic isolation structure provided by this utility model are as follows: Compared with the prior art, the staggered seismic isolation structure of this utility model achieves staggered seismic isolation, eliminates the underground seismic isolation layer in the elevated area, and sets an above-ground seismic isolation layer for the elevated area; it avoids the difficulty of construction at the junction, and at the same time reduces the cost of the seismic isolation layer in the elevated area, and facilitates construction. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the same-story seismic isolation structure proposed in the background art of this utility model;

[0015] Figure 2 A schematic diagram of the staggered seismic isolation structure provided in an embodiment of this utility model.

[0016] In the diagram: 1. Outdoor ground level; 2. Seismic isolation trench; 3. Overhead support structure; 4. Seismic isolation slab; 5. Seismic isolation beam; 6. Seismic isolation bearing; 7. Lower support pier of the bearing; 8. Upper support pier of the bearing; 9. Structural column; 10. Foundation structure; 11. Foundation beam; 12. Above-ground seismic isolation device; 13. Underground seismic isolation device. Detailed Implementation

[0017] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] Please see Figure 1 and Figure 2 The staggered-level seismic isolation structure provided by this utility model will now be described. The staggered-level seismic isolation structure includes a foundation, an underground seismic isolation layer, and an above-ground seismic isolation layer; both the underground and above-ground seismic isolation layers are located above the foundation; the underground seismic isolation layer is located within the seismic isolation trench 2 of the non-elevated part of the building, and contains an underground seismic isolation device 13, which connects the foundation and the first-floor support structure; the above-ground seismic isolation layer is located in the elevated part of the building, and contains an above-ground seismic isolation device 12, which connects the foundation and the elevated support structure 3; both the underground seismic isolation device 13 and the above-ground seismic isolation device 12 include seismic isolation bearings 6.

[0019] like Figure 1 As shown, the existing technology for in-situ seismic isolation involves setting up seismic isolation trenches 2 in both elevated and non-elevated areas. The height of the seismic isolation layer 4 at the top of the seismic isolation trench 2 is adjusted to accommodate both elevated and non-elevated areas, so that the seismic isolation layer in the elevated area is below the outdoor ground level 1, while the seismic isolation layer in the non-elevated area is above the outdoor ground level 1. Seismic isolation is achieved by setting up an underground seismic isolation device 13 in the seismic isolation trench 2. The underground seismic isolation device 13 includes a seismic isolation bearing 6.

[0020] In-floor seismic isolation presents complex structural issues at the boundary between elevated and non-elevated areas, as well as at the periphery of these areas. Furthermore, the practice requires the same isolation layer to be installed in all areas beneath the building, leading to high costs for the isolation layer itself.

[0021] The staggered seismic isolation structure provided by this utility model achieves staggered seismic isolation by eliminating the underground seismic isolation layer in the elevated area and setting an above-ground seismic isolation layer for the elevated area. It avoids the difficulty of construction at the junction, reduces the cost of the seismic isolation layer in the elevated area, and facilitates construction.

[0022] The underground seismic isolation layer is a conventional underground seismic isolation layer installed according to current national standards for the non-first-floor elevated area; the above-ground seismic isolation layer is a conventional above-ground seismic isolation layer installed according to current national standards for the first-floor elevated area. The seismic isolation trench 2 is a conventional seismic isolation trench 2 installed according to current national standards for the non-first-floor elevated area. The foundation structure 10 is a plate with a uniform or variable cross-section at the ends, generally made of reinforced concrete, located below the seismic isolation layer retaining wall and the outer-column seismic isolation layer retaining wall. The seismic isolation layer retaining wall and the outer-column seismic isolation layer retaining wall are constructed around the perimeter of the seismic isolation trench 2.

[0023] The underground seismic isolation device 13 is located within the seismic isolation trench 2, while the above-ground seismic isolation device 12 is located within the elevated area. The underground seismic isolation device 13 connects the foundation and the first-floor support structure, while the above-ground seismic isolation device 12 connects to the elevated support structure 3 of the first-floor elevated area. Synchronous seismic isolation of the elevated and non-elevated areas is achieved using the seismic isolation bearings 6 within the above-ground and underground seismic isolation devices 12 and 13. The seismic isolation bearing 6 is generally cylindrical and is typically a prefabricated, specialized component. The seismic isolation bearing 6 may have a rubber, metal, or rubber-metal core.

[0024] Please see Figure 2 Both the underground seismic isolation device 13 and the above-ground seismic isolation device 12 include seismic isolation support columns. The seismic isolation support columns have a lower support 7 and an upper support 8. The lower support 7 is connected to the foundation, and the upper support 8 is connected to the first-floor support structure or the overhead support structure 3. The seismic isolation support 6 is located between the lower support 7 and the upper support 8.

[0025] Both the underground seismic isolation device 13 and the above-ground seismic isolation device 12 adopt a seismic isolation support column structure. The seismic isolation bearing 6 is supported by a lower support pier 7 set on the foundation, and an upper support pier 8 is set on the upper end of the seismic isolation bearing 6. The upper support pier 8 is used to connect the first-floor support structure or the overhead support structure 3. This creates a seismic isolation structure in which the seismic isolation support column and the seismic isolation bearing 6 cooperate within both the underground seismic isolation layer and the overhead area in the seismic isolation trench 2.

[0026] The plan shape of the lower support 7 is generally rectangular, but it can also be circular. It is generally made of reinforced concrete and is located below the seismic isolation bearing 6, above the foundation, and inside the seismic joint.

[0027] The planar shape of the upper support 8 is generally rectangular, but it can also be circular. It is generally made of reinforced concrete and is located above the seismic isolation bearing 6, below the above-ground structural column or wall, and connected to the seismic isolation layer beam.

[0028] Optionally, the seismic isolation bearing 6 is located in the middle of the seismic isolation support column.

[0029] The seismic isolation support columns in the underground seismic isolation layer are coaxially arranged with the structural columns 9 above the first-floor support structure, and the seismic isolation support columns in the above-ground seismic isolation layer are coaxially arranged with the structural columns 9 above the overhead support structure 3.

[0030] The structural column 9 has a rectangular, circular, or irregular cross-sectional shape, and is generally made of reinforced concrete or steel. It is located above the underground seismic isolation layer.

[0031] In some possible embodiments, please refer to Figure 2The underground seismic isolation device 13 also includes a seismic isolation beam 5, a seismic isolation layer 4, and a seismic isolation probe. The seismic isolation beam 5 is used to support the seismic isolation layer 4. The seismic isolation beam 5 is connected to the support pier 8 on the support of the underground seismic isolation device 13. The seismic isolation beam 5 has a seismic isolation probe extending outward on the side near the edge of the seismic isolation trench 2. The seismic isolation probe covers the edge of the seismic isolation trench 2.

[0032] The seismic isolation beam 5 is located within the underground seismic isolation layer. The seismic isolation beam 5, located at the top of the underground seismic isolation layer, has a rectangular cross-section and is generally made of cast-in-place reinforced concrete. It is situated around and connected to the upper support pier 8. The seismic isolation slab 4, serving as the top floor slab of the underground seismic isolation layer, is also generally made of cast-in-place reinforced concrete.

[0033] The upper surface of the outer structure of the seismic isolation trench 2 protrudes above the outdoor ground level 1, that is, the seismic isolation layer retaining wall protrudes above the outdoor ground level 1. There is a longitudinal gap between the seismic isolation probe and the upper surface of the outer structure of the seismic isolation trench 2, that is, the seismic isolation probe extends horizontally to the top of the seismic isolation layer retaining wall and covers the seismic isolation layer retaining wall, and there is a longitudinal gap between the upper end of the seismic isolation probe and the seismic isolation layer retaining wall.

[0034] In some possible embodiments, please refer to Figure 2 The foundation includes a foundation structure 10 and a foundation beam 11, with the foundation beam 11 connecting two adjacent foundation structures 10; the support pier 7 is connected to the foundation structure 10.

[0035] The foundation beam 11 has a rectangular or inverted T-shaped cross-section and is generally made of reinforced concrete. It is located between two adjacent foundation structures and serves to increase the rigidity of the foundation structure 10.

[0036] In summary, the aforementioned staggered isolation structure utilizes the separate construction of the above-ground and underground isolation layers to isolate the ground-floor elevated area. Furthermore, it eliminates the need for complex joint construction at the junction of the elevated and non-elevated areas, requiring only standard underground isolation layer construction, thus reducing construction difficulty. The above-ground isolation layer structure also avoids the need for underground isolation construction in the ground-floor elevated area, saving on construction costs for the ground-floor elevated area.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A staggered seismic isolation structure, characterized by The base, the underground isolation layer and the ground isolation layer; the underground isolation layer and the ground isolation layer are located above the base; The underground isolation layer is located in the isolation trench (2) of the non-overhead part of the building, the underground isolation layer has underground isolation devices (13) therein, the underground isolation devices (13) connect the base and the first floor support structure; the ground isolation layer is located in the overhead part of the building, the ground isolation layer has ground isolation devices (12) therein, the ground isolation devices (12) connect the base and the overhead support structure (3); the underground isolation devices (13) and the ground isolation devices (12) both include isolation bearings (6).

2. The staggered structural system of claim 1, wherein, The underground isolation devices (13) and the ground isolation devices (12) both include isolation support columns, the isolation support columns have bearing lower buttresses (7) and bearing upper buttresses (8); the bearing lower buttresses (7) are connected to the base, the bearing upper buttresses (8) are connected to the first floor support structure or the overhead support structure (3), and the isolation bearings (6) are located between the bearing lower buttresses (7) and the bearing upper buttresses (8).

3. The staggered-floor seismic isolation structure according to claim 2, wherein The isolation bearings (6) are located in the middle of the isolation support columns.

4. The staggered-floor seismic isolation structure according to claim 2, wherein The isolation support columns in the underground isolation layer are coaxially arranged with structural columns (9) above the first floor support structure, and the isolation support columns in the ground isolation layer are coaxially arranged with structural columns (9) above the overhead support structure (3).

5. The staggered structural system of claim 2, wherein, The underground isolation devices (13) further include isolation beams (5), isolation layer plates (4) and isolation exploration plates, the isolation beams (5) are used for supporting the isolation layer plates (4), the isolation beams (5) are connected to the bearing upper buttresses (8) of the underground isolation devices (13); the isolation beams (5) have the isolation exploration plates extending outward on one side close to the edge of the isolation trench (2), and the isolation exploration plates cover the edge of the isolation trench (2).

6. The staggered structural system of claim 5, wherein, The isolation exploration plates have longitudinal gaps between upper end faces of peripheral structures of the isolation trench (2).

7. The staggered structural system of claim 6, wherein, The upper end faces of the peripheral structures of the isolation trench (2) protrude out of the outdoor terrace (1).

8. The staggered structural system of claim 2, wherein, The base includes base structures (10) and base beams (11), the base beams (11) connect two adjacent base structures (10); and the bearing lower buttresses (7) are connected to the base structures (10).

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