A connecting node structure of an outer wall of a shock insulation layer and a first floor

Abstract

The application provides a connecting node structure of a seismic isolation layer outer wall and a first floor slab, and relates to the field of building structure seismic isolation, and comprises staggered heat insulation layers arranged along the length direction of the outer wall and flexible heat insulation layers located on both sides of the staggered heat insulation layers; the staggered heat insulation layers comprise fireproof sleeves which are arranged in multiple and are arranged at intervals along the length direction of the outer wall, one end of the fireproof sleeves is fixed to the top surface of the outer wall or the bottom surface of the floor slab, the fireproof sleeves are located in the interspace between two adjacent fireproof sleeves on the opposite side and abut each other, and the length of each fireproof sleeve is greater than half of the interspace between the top of the outer wall and the bottom of the floor slab. According to the technical scheme, the fireproof sleeves are arranged in multiple and staggered in the middle part to achieve the fireproof and heat insulation effect, the fixed ends of each fireproof sleeve are different, and the staggered arrangement can also be used to protect the integrity of each fireproof sleeve during the earthquake; the flexible fireproof material is used on both sides, which can meet the displacement during the earthquake and guarantee the fireproof effect.

Description

Technical Field

[0001] This invention generally relates to the field of seismic isolation in building structures, and specifically to a connection node structure between the outer wall of the seismic isolation layer and the first floor slab. Background Technology

[0002] In the field of building engineering, a seismic isolation layer refers to a structural layer consisting of seismic isolation bearings, damping devices, etc., installed between the building foundation or substructure and the superstructure. Its main function is to reduce the transmission of seismic energy to the superstructure through the elastic deformation and damping energy dissipation of the seismic isolation devices, thereby reducing the seismic response of the superstructure and improving the seismic performance of the building.

[0003] In buildings employing seismic isolation technology, a gap is typically required between the top of the isolation layer's exterior wall and the first-floor slab. This is because under seismic loading, the isolation layer will experience horizontal displacement. If the top of the exterior wall is directly connected to the first-floor slab, it will restrict the displacement of the isolation layer, affecting its isolation effect and potentially leading to structural damage. Therefore, setting a certain gap is a necessary measure to ensure the normal operation of the isolation layer.

[0004] However, installing fire-resistant and heat-insulating materials within this gap presents numerous challenges. On one hand, it is necessary to ensure that the fire-resistant and heat-insulating materials can effectively block the transfer of flames and heat, meeting the requirements of building fire codes. On the other hand, since the width and location of the gap will change under seismic action, the fire-resistant and heat-insulating materials need to possess good flexibility and durability to reduce post-earthquake damage. In existing technologies, commonly used fire-resistant and heat-insulating materials are prone to cracking and detachment after earthquakes, which not only affects the fire-resistant and heat-insulating effect but also requires frequent replacement, increasing maintenance costs. Furthermore, existing installation methods often fail to simultaneously meet the requirements of fire resistance, heat insulation, and deformation adaptation, leading to unstable performance at the connection points between the seismic isolation layer's exterior wall and the first-floor slab.

[0005] Therefore, how to reasonably install fireproof and heat-insulating materials in the gap between the outer wall of the seismic isolation layer and the first floor slab, so that they can meet the requirements of fireproof and heat insulation, reduce post-earthquake losses, and improve the reliability of the connection nodes, is a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0006] In view of the problems existing in the prior art, the present invention provides a connection node structure between the outer wall of the seismic isolation layer and the first floor slab, which is located between the top of the outer wall and the bottom of the floor slab, and includes: an interlaced heat insulation layer arranged along the length of the outer wall and a flexible heat insulation layer located on both sides of the interlaced heat insulation layer.

[0007] The interlaced thermal insulation layer includes

[0008] Fireproof sleeves are provided in multiples and spaced apart along the length of the exterior wall. One end of each sleeve is fixed to the top surface of the exterior wall or the bottom surface of the floor slab, and the other end extends toward the opposite exterior wall or floor slab. The fireproof sleeves are located in the gaps between two adjacent fireproof sleeves on opposite sides and are close to each other.

[0009] The length of each of the fireproof sleeves is greater than half the gap between the top of the exterior wall and the bottom of the floor slab.

[0010] With the above-mentioned technical features, the fireproof sleeves in the middle are staggered to achieve the function of fireproofing and heat insulation. During an earthquake, since the fixed ends of each fireproof sleeve are different, they can also be staggered to avoid each other, thus protecting the integrity of each fireproof sleeve. The two sides are made of flexible fireproof material, which can not only meet the displacement during an earthquake, but also ensure its own fireproof effect.

[0011] In some embodiments, the flexible thermal insulation layer includes

[0012] Fireproof cloth is laid along the length of the exterior wall, with one end fixed to the bottom of the floor slab and the other end extending towards the top of the exterior wall and fixed thereas. A staggered allowance is left in the middle area of ​​the fireproof cloth. Thus, the fireproof cloth is a flexible material, with both ends fixed to the upper and lower sides respectively, serving to connect the top of the exterior wall and the bottom of the floor slab. Even during an earthquake, if the floor slab and exterior wall shift, the fireproof cloth can reduce structural damage through its flexibility, thus ensuring its fireproof and heat-insulating function.

[0013] In some embodiments, the fireproof cloth is distributed in a wavy pattern along the length of the top of the exterior wall. This increases the length of the regional fireproof cloth, indirectly increasing its strength and further enhancing its fire-resistant effect.

[0014] In some embodiments, a fireproof column is provided within each crest and trough of the wavy fabric.

[0015] One end of the fireproof column is fixed to the top surface of the exterior wall, and the other end extends towards the floor slab. Thus, the fireproof column serves a limiting and guiding function. When fireproof fabric is installed in this area, a large amount of fireproof fabric will be stacked in this area to accommodate lateral displacement. Therefore, the fireproof column can support the stacked fireproof fabric, limiting the stacking effect of the fireproof fabric and maximizing the wave distribution of the fireproof fabric.

[0016] In some embodiments, the fireproof column is a tube filled with fireproof rock wool powder. Thus, the fireproof column itself is a fireproof material, making it more resistant to burning in a fire. During an earthquake, the fireproof rock wool powder inside will splash from the top into the surrounding environment due to the vibration. Since the fireproof rock wool powder is a fireproof material, the area it covers can have a wider range of fireproof and heat-resistant effects.

[0017] In some embodiments, the fireproof column has multiple leakage holes on its periphery that communicate with the internal cavity. Thus, during vibration, fireproof rock wool powder is dislodged through these leakage holes and scattered in the space at the bottom of the fireproof cloth, filling the gaps in the fixed area of ​​the fireproof cloth and increasing the regional fireproof effect.

[0018] In some embodiments, a gap is left between the fixing point of the fireproof column and the top of the exterior wall and the fixing area of ​​the fireproof cloth. This reduces direct contact between the fireproof column and the fireproof cloth, preventing damage to the fireproof column and further unnecessary safety hazards caused by the stretching of the fireproof cloth and rubbing against the fireproof column during earthquakes.

[0019] In some embodiments, a fire-resistant roll material is provided between adjacent fire-resistant sleeves. One end of the fire-resistant roll material is fixed to the top of the exterior wall or the bottom of the floor slab, and the other end of the fire-resistant roll material is sleeved inside the fire-resistant sleeve. Thus, the fire-resistant roll material is located inside the opposing fire-resistant sleeves, which on the one hand limits the movement of the fire-resistant sleeves, and on the other hand fills the gaps between the ends of the opposing fire-resistant sleeves. Even during vibrations or when the sleeves shift due to noise, the fire-resistant roll material can slide out from inside the fire-resistant sleeves, ensuring the normal displacement of the fire-resistant sleeves.

[0020] In some embodiments, elastic limiting layers are sprayed onto both sides of the staggered thermal insulation layer.

[0021] The elastic restraining layer is a foamed material of expandable polystyrene beads. Thus, the elastic restraining layer is located on both sides of the staggered insulation layer, filling the gaps in the staggered insulation layer itself with the foamed material, improving fireproof and heat insulation performance. Furthermore, during an earthquake, its elasticity allows it to deform and avoid damage caused by the staggered displacement between the exterior wall and the roof slab. In the event of a major earthquake, the elastic restraining layer may break under tensile stress and detach from the restraining effect on the staggered insulation layer, allowing the staggered insulation layer to reduce its own damage through displacement deformation.

[0022] In some embodiments, both the fireproof column and the fireproof sleeve are made of ceramicized silicone rubber. Therefore, at room temperature, the fireproof column and fireproof sleeve are elastic materials and do not generate noise when in contact with other materials. Upon contact with fire, they form a ceramicized shell, achieving a fire-repellent effect.

[0023] It should be understood that the description in the Summary of the Invention is not intended to limit the key or essential features of the embodiments of this disclosure, nor is it intended to restrict the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description. Attached Figure Description

[0024] Figure 1 This diagram shows an overall structural schematic of a connection node between the outer wall of the seismic isolation layer and the first floor slab according to an embodiment of the present invention.

[0025] Figure 2 An exploded structural diagram of the staggered thermal insulation layer in the connection node construction between the outer wall of the seismic isolation layer and the first floor slab according to an embodiment of the present invention is shown.

[0026] Figure 3 This diagram shows a longitudinal section of the staggered thermal insulation layer in the connection node structure between the outer wall of the seismic isolation layer and the first floor slab according to an embodiment of the present invention.

[0027] Figure 4 This diagram illustrates the structure of the flexible thermal insulation layer in the connection node between the outer wall of the seismic isolation layer and the first floor slab according to an embodiment of the present invention.

[0028] Figure 5 A schematic diagram of the fireproof column in the connection node between the outer wall of the seismic isolation layer and the first floor slab according to an embodiment of the present invention is shown.

[0029] Symbol Explanation

[0030] 1. Interlaced insulation layer; 11. Insulation unit; 111. Fireproof sleeve; 112. Fixing base; 113. Fireproof roll material; 114. Elastic limiting layer; 2. Flexible insulation layer; 21. Fireproof cloth; 22. Fireproof column; 221. Leakage hole. Detailed Implementation

[0031] The preferred embodiments (or implementation methods) of the present invention will now be described in detail with reference to the accompanying drawings.

[0032] The following is for reference. Figures 1-5 This invention describes the connection node structure between the outer wall of the seismic isolation layer and the first floor slab.

[0033] Figure 1 A schematic diagram of the overall structure of a connection node between the outer wall of the seismic isolation layer and the first-floor slab according to an embodiment of the present invention is shown. (Reference) Figure 1As shown, the gap between the outer wall of the seismic isolation layer and the bottom of the first-floor slab needs to be calculated based on the maximum horizontal displacement value of the seismic isolation bearing under a rare earthquake. The width of the vertical isolation joint should not be less than 1.2 times the maximum horizontal displacement value of the seismic isolation bearing under a rare earthquake, and not less than 300 mm. This embodiment provides a connection node structure between the outer wall of the seismic isolation layer and the first-floor slab, which includes a central staggered thermal insulation layer 1 and flexible thermal insulation layers 2 located on both sides of the staggered thermal insulation layer 1. The staggered thermal insulation layer 1 is arranged along the length of the outer wall and is located in the central region of the bottom of the outer wall.

[0034] Figure 2 An exploded structural diagram of the staggered thermal insulation layer 1 in the connection node construction between the outer wall of the seismic isolation layer and the first floor slab according to an embodiment of the present invention is shown. (See reference) Figure 2 As shown, the staggered insulation layer 1 includes insulation units 11 disposed on the top surface of the exterior wall and the bottom surface of the floor slab. Each insulation unit 11 includes multiple fireproof sleeves 111, one end of which is fixed to the top surface of the exterior wall or the bottom surface of the floor slab, and the other end extends towards the opposite side of the top surface of the exterior wall or the bottom surface of the floor slab. Moreover, there is a gap between two adjacent fireproof sleeves 111, and the fireproof sleeves 111 on the opposite side are inserted into the gap between two adjacent fireproof sleeves 111 on the same side, so that the fireproof sleeves 111 abut against each other.

[0035] Furthermore, the fireproof sleeve 111 is made of ceramicized silicone rubber, which possesses the elastic characteristics of rubber at room temperature. However, when exposed to fire, the ceramicized silicone rubber will ceramicize to form a protective shell, exhibiting excellent fire resistance. It is commonly used in fire-resistant cable protection materials and sealing materials for high-temperature equipment. In this embodiment, if an earthquake occurs and lateral displacement occurs between the floor slab and the exterior wall, due to the elastic properties of the rubber material in the fireproof sleeve 111 at room temperature, the upper and lower fireproof sleeves 111 will be misaligned and squeezed, and will avoid damage through elastic deformation. In a fire environment, the fireproof sleeve 111 blocks the airflow on both sides, and upon exposure to fire, it will ceramicize to form a hard shell, slowing the spread of fire. Therefore, the staggered insulation layer 1 not only reduces structural damage during earthquakes but also prevents the spread of fire during fire disasters.

[0036] Furthermore, the length of each fireproof sleeve 111 is greater than half the distance between the top of the exterior wall and the bottom of the floor slab, to ensure that the fireproof sleeves 111 on opposite sides remain in abutting state when they are plugged together. However, in order to reduce airflow on both sides of the staggered insulation layer 1, at least two sets of insulation units 11 need to be installed along the width direction of the exterior wall, and the insulation units 11 in each row are staggered, so as to make up for the gaps between the ends of the fireproof sleeves 111 and the opposite side by multiple rows of staggered fireproof sleeves 111.

[0037] In some embodiments, in order to improve construction efficiency, each fireproof sleeve 111 can be detachably connected to the same strip-shaped fixing base 112, and fixed to the top of the wall or the bottom of the floor slab through the fixing base 112, so as to reduce the time consumption of independently fixing each fireproof sleeve 111. Moreover, by connecting through the fixing base 112, the spacing between adjacent fireproof sleeves 111 can be unified and standardized, improving efficiency while also reducing the gaps generated when the insulation units 11 on both sides are inserted into each other.

[0038] In some embodiments, the length of the fireproof sleeve 111 can be equal to the gap between the top of the exterior wall and the bottom of the floor slab, minimizing airflow on both sides of the fireproof sleeve 111. Due to the limitations of its own material, even during an earthquake, it can reduce damage to its own structure through end wear and compression deformation, ensuring that in the event of a fire, it and the adjacent fireproof sleeves 111 form a fire barrier that can play a role in fire prevention and heat insulation.

[0039] like Figure 2 As shown, in some embodiments, the heat insulation unit 11 also includes a fireproof roll 113, which is a flexible material. It can be a glass fiber cloth coated with silicone rubber or a basalt limiting cloth. Both of them have the function of fireproofing and heat insulation and can withstand high temperatures of over 1000 degrees Celsius. Fireproof roll 113 is rolled into a column shape, with one end fixed between adjacent fireproof sleeves 111 and the other end extending into the opposite fireproof sleeve 111. The height of the fireproof roll 113 is slightly greater than the gap between the top of the opposite fireproof sleeve 111 and the top of the opposite exterior wall or the bottom of the floor slab. This allows the fireproof roll 113 to be inserted into the space between the opposite fireproof sleeves 111 through its own flexible deformation. On the one hand, the fireproof roll 113 itself has fireproof and heat insulation functions. On the other hand, its insertion into the opposite fireproof sleeve 111 fills the gaps generated by the interlaced heat insulation layer 1. Moreover, the insertion of the fireproof roll 113 also restricts the swing of the opposite fireproof sleeve 111, thus limiting the position of the fireproof sleeve 111. During an earthquake, lateral displacement occurs between the exterior wall and the floor slab. The end of the fireproof roll 113 will detach from the sleeve of the fireproof sleeve 111 on the opposite side, thus not damaging the structure of the fireproof sleeve 111. Even after the fireproof sleeve 111 returns to its original position, the fireproof roll 113 itself is a fabric roll. Although it is soft, its columnar winding provides a certain degree of support and can fill the gaps caused by the length limitation of the fireproof sleeve 111 on the opposite side to the maximum extent. Moreover, after the fireproof roll 113 detaches from the sleeve of the fireproof sleeve 111, it is in a wound state. After being unrestrained, it will slowly deform into a loose fan-shaped state, thereby filling the gaps between adjacent fireproof sleeves 111. While providing fire protection and heat insulation, it also greatly reduces airflow.

[0040] Figure 3This diagram shows a longitudinal section of the staggered thermal insulation layer 1 in the connection node structure between the outer wall of the seismic isolation layer and the first floor slab according to an embodiment of the present invention. Figure 3 As shown, elastic restraining layers 114 are also provided on both sides of the staggered insulation layer 1. The elastic restraining layer 114 is a spray-formed foam material, which can be a polystyrene bead foam material. While having fireproof and heat insulation functions, it forms a heat insulation layer with a thickness of 5-10cm. It not only fills the gaps in the structure of the staggered insulation layer 1 itself, but also has a restraining function. When a small earthquake occurs and the lateral displacement of the exterior wall and floor slab is between 0-3cm, the elastic restraining layer 114 can completely adhere tightly to both sides of the staggered insulation layer 1 through its own elastic deformation. While absorbing the vibration, it also restricts the vibration transmission of the fireproof sleeve 111, preventing the fireproof roll 113 from separating from the fireproof sleeve 111. As the earthquake magnitude increases, the elastic deformation of the elastic restraining layer 114 itself cannot guarantee the integrity of its own structure, causing the elastic restraining layer 114 to detach from the staggered insulation layer 1. At this time, the staggered insulation layer 1 can normally avoid the earthquake through its own structural characteristics.

[0041] Figure 4 This diagram illustrates the structure of the flexible insulation layer 2 in the connection node between the outer wall of the seismic isolation layer and the first-floor slab according to an embodiment of the present invention. (See reference) Figure 4 As shown, the flexible insulation layer 2 includes a fireproof cloth 21, which is laid along the length of the exterior wall. One edge is fixed to the bottom of the floor slab, and the other edge is fixed to the top of the exterior wall. A margin of excess fabric is left in the middle of the fireproof cloth 21 to allow for sufficient stretching when the exterior wall and floor slab intersect, ensuring the structural integrity of the fireproof cloth 21. The fireproof cloth 21 can be silicone rubber-coated fiberglass cloth or basalt restraining cloth; both have fireproof and heat-insulating properties and can withstand temperatures above 1000 degrees Celsius.

[0042] In some embodiments, the fireproof cloth 21 is laid out in a wavy structure, thereby increasing the length of the fireproof cloth 21 within a unit area and increasing the regional fireproof and heat insulation effect.

[0043] Furthermore, a fireproof column 22 is installed at the crest and trough of each wave of the fireproof cloth 21. The fireproof column 22 is a tubular structure, vertically installed in the gap between the top of the exterior wall and the roof slab, with its lower end fixed to the top area of ​​the exterior wall and leaving a gap between it and the bottom edge of the fireproof cloth 21, and its upper end leaving a gap between it and the bottom area of ​​the floor slab. The fireproof column 22 itself is a fireproof material, and can be made of ceramicized silicone rubber tubes. At room temperature, it has the elastic characteristics of rubber. However, when exposed to fire, the ceramicized silicone rubber will ceramicize to form a protective shell and has good fire resistance properties. On the one hand, the fireproof column 22 is located at each crest and trough of the fireproof cloth 21. Although there is a gap between it and the fireproof cloth 21, it plays a limiting and guiding role for the overall downward-hanging fireproof cloth 21, making the fireproof cloth 21 more evenly distributed in a wave shape, and also providing auxiliary support for the stacked fireproof cloth 21. On the other hand, during an earthquake, lateral displacement occurs between the exterior wall and the floor slab. Under normal temperature conditions, the fireproof cloth 21 is made of rubber elastic material. The shaking fireproof cloth 21 is hindered by the fireproof column 22, which reduces the mutual connection between the fireproof cloths 21, thereby ensuring the uniformity of the distribution of the fireproof cloth 21 after the earthquake, and also avoiding structural damage to the fireproof cloth 21 caused by mutual scraping.

[0044] Furthermore, the fireproof cloth 21 is also filled with fireproof rock wool powder. This fireproof rock wool powder has a melting point exceeding 1000℃, maintaining structural stability even at high temperatures and effectively slowing the spread of fire. After an earthquake, the structural shaking will cause the fireproof rock wool powder to splash through the top opening into the surrounding environment. Some of it will adhere to the fireproof cloth 21, while some will scatter throughout the area, preventing fires caused by the earthquake and thus slowing the spread of fire in that area.

[0045] Figure 5 A schematic diagram of the fire-resistant column 22 in the connection node between the outer wall of the seismic isolation layer and the first floor slab according to an embodiment of the present invention is shown. (Reference) Figure 5 As shown, the fireproof column 22 has multiple leakage holes 221 around its perimeter, and these holes 221 are located near the bottom of the fireproof column 22, evenly spaced horizontally. On the one hand, during an earthquake, the shaking of the fireproof column 22 increases the area of ​​fireproof rock wool powder splashing due to the opening of the leakage holes 221, thus facilitating the filling of gaps in the surrounding environment and hindering airflow. Furthermore, during an earthquake, the longitudinal vibration due to the opening of the leakage holes 221 increases the risk of breakage of the fireproof column 22 in the area of ​​the leakage holes 221, further increasing the leakage capacity of the fireproof rock wool powder and expanding its dispersion range. As the earthquake magnitude increases, structural damage to the flexible insulation layer 2 is inevitable; however, measures are also implemented to reduce the risk of fire spread caused by the earthquake.

[0046] In the description of this specification, the terms "connection," "installation," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0047] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A connection node structure between the outer wall of the seismic isolation layer and the first-floor slab, located between the top of the outer wall and the bottom of the floor slab, and comprising: An interlaced insulation layer (1) is provided along the length of the outer wall and flexible insulation layers (2) are located on both sides of the interlaced insulation layer (1); The staggered insulation layer (1) includes Fireproof sleeves (111) are provided in multiples and are spaced apart along the length of the exterior wall. One end of the sleeve is fixed to the top surface of the exterior wall or the bottom surface of the floor slab, and the other end extends toward the opposite exterior wall or floor slab. The fireproof sleeves (111) are located in the gap between two adjacent fireproof sleeves (111) on the opposite side and abut against each other. The length of each of the fireproof sleeves (111) is greater than half the gap between the top of the exterior wall and the bottom of the floor slab; The flexible thermal insulation layer (2) includes Fireproof cloth (21) is laid along the length of the outer wall, with one end fixed to the bottom of the floor slab and the other end extending towards the top of the outer wall and fixed to the top of the outer wall. The middle area of ​​the fireproof cloth (21) has an interlacing allowance.

2. The connection node structure between the outer wall of the seismic isolation layer and the first floor slab according to claim 1, characterized in that, The fireproof cloth (21) is distributed in a wavy shape along the length of the top of the outer wall.

3. The connection node structure between the outer wall of the seismic isolation layer and the first floor slab according to claim 2, characterized in that, The fireproof cloth (21) is provided with a fireproof column (22) in each crest and trough of the wave shape. One end of the fireproof column (22) is fixed to the top surface of the exterior wall, and the other end extends toward the floor slab.

4. The connection node structure between the outer wall of the seismic isolation layer and the first floor slab according to claim 3, characterized in that, The fireproof column (22) is a pipe filled with fireproof rock wool powder.

5. The connection node structure between the outer wall of the seismic isolation layer and the first floor slab according to claim 4, characterized in that, The fireproof column (22) has multiple material leakage holes (221) on its periphery that communicate with the internal cavity.

6. The connection node structure between the outer wall of the seismic isolation layer and the first floor slab according to claim 5, characterized in that, The fireproof column (22) has a gap between its fixing point at the top of the outer wall and the fixing area of ​​the fireproof cloth (21).

7. The connection node structure between the outer wall of the seismic isolation layer and the first floor slab according to claim 1, characterized in that, A fireproof roll (113) is provided between adjacent fireproof sleeves (111). One end of the fireproof roll (113) is fixed to the top of the exterior wall or the bottom of the floor slab, and the other end of the fireproof roll (113) is sleeved inside the fireproof sleeve (111).

8. The connection node structure between the outer wall of the seismic isolation layer and the first floor slab according to claim 7, characterized in that, The two sides of the interlaced heat insulation layer (1) are coated with elastic limiting layers (114). The elastic limiting layer (114) is a foaming material for expandable polystyrene beads.

9. The connection node structure between the outer wall of the seismic isolation layer and the first floor slab according to claim 4, characterized in that, Both the fireproof column (22) and the fireproof sleeve (111) are made of ceramicized silicone rubber.

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