Anti-seismic keel suspended ceiling structure

Abstract

The invention discloses an anti-seismic keel suspended ceiling structure which comprises a hanging assembly arranged on the lower portion of a concrete roof, the lower end of the hanging assembly is connected with a hanging bracket assembly through a vertical anti-seismic assembly, the hanging bracket assembly comprises a main keel, and two transverse anti-seismic assemblies are distributed on the inner side of the main keel in a central symmetry mode. The hanging assembly is composed of an expansion bolt fixedly connected to the lower end of the concrete roof and a steel rope fixed to the lower end of the expansion bolt. The invention belongs to the technical field of keel suspended ceilings, and particularly relates to an anti-seismic keel suspended ceiling structure which is characterized in that a keel and a suspended ceiling decorative plate are elastically fixed together to reduce the influence of vibration on the suspended ceiling decorative plate, and meanwhile, the keel is elastically connected relative to a roof floor to further reduce the transmission of vibration and reduce the vibration loss when an earthquake occurs. And the possibility that a fixed object on the suspended ceiling falls off is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of keel ceilings, and in particular relates to an earthquake-resistant keel ceiling structure. Background Art

[0002] The main keel is the main load-bearing component in the ceiling structure. It is generally installed along the length of the room or the main force direction. It bears most of the weight of the ceiling, including the weight of suspended objects such as ceiling panels, lamps, ventilation equipment, etc., and transfers this weight to the main structure of the building such as beams and floor slabs. Most of the existing ceiling installation methods are through rigid connections directly fixed to the roof. The advantages are firm fixation, simple installation and low cost.

[0003] However, most of the existing keel ceiling installation methods use rigid connections. For example, the main keel is directly fixed to the main structure of the building, such as a floor or beam, through a hanger, and the secondary keel is also connected to the main keel through a simple clip or screw. This rigid connection cannot effectively buffer and absorb energy under the action of external forces such as earthquakes (vibrations). When the impact force generated by the earthquake (vibration) is transmitted to the keel ceiling, the connection part cannot produce appropriate displacement and deformation to consume energy. The force will directly act on the keel structure, which can easily cause the keel to deform and break, and then damage the ceiling.

[0004] In the existing installation method, elastic buffer elements are rarely set at the connection parts. If an elastic buffer device can be set at the connection point between the keel and the main structure or the keel, just like the rubber isolation bearings used in some building isolation structures, energy can be absorbed by the compression, tension or shear deformation of the elastic element during an earthquake (vibration) to reduce the transmission of force. However, the current installation method does not use such a connection element that can effectively increase the shock-absorbing effect. Generally, the roof above the keel ceiling needs to be installed with comprehensive pipelines such as ventilation ducts and water pipes. The pipelines are subject to vibration during the trial run and normal operation. The ceiling structure of a large space has a large vertical deflection deformation due to the empty space and the floor. If no shock-absorbing measures are taken, the building ceiling structure will inevitably be affected, which may cause the connection between the keel ceiling and the roof, and the pipelines or ceiling structure components may accidentally fall and hit the staff, which will lead to irreversible danger.

[0005] Therefore, in view of the above problems, an earthquake-resistant keel ceiling structure is proposed. Summary of the invention

[0006] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an earthquake-resistant keel ceiling structure, in which the keel and the ceiling decorative panels are elastically fixed together to reduce the impact of vibration on the ceiling decorative panels. At the same time, the keel is elastically connected to the roof floor to further reduce the transmission of vibration and reduce the possibility of fixed objects on the ceiling falling off during an earthquake.

[0007] The technical solution adopted by the present invention is as follows: The present invention proposes an earthquake-resistant keel ceiling structure, including a hanging assembly arranged at the lower part of a concrete roof, and the lower end of the hanging assembly is connected to a hanger assembly through a vertical shock-absorbing assembly, wherein the hanger assembly includes a main keel, and two horizontal shock-absorbing assemblies are centrally symmetrically distributed on the inner side of the main keel, and the hanging assembly is composed of an expansion bolt fixedly connected to the lower end of the concrete roof and a steel rope fixed to the lower end of the expansion bolt.

[0008] Furthermore, the lateral shock-absorbing assembly includes two fixed mounting blocks fixedly connected to the main keel, and a lateral sliding rod is fixedly connected between the fixed mounting blocks, a sliding sleeve is slidingly connected to the middle part of the sliding rod, and a buffer spring movably mounted on the sliding rod is provided between the sliding sleeve and the fixed mounting blocks.

[0009] Furthermore, the vertical shock-absorbing assembly includes an upper suspension rod and a frame, wherein the upper end of the upper suspension rod is fixed to the lower end of the steel rope, and the frame is slidably connected to the upper suspension rod.

[0010] Furthermore, a rubber damping pad and a spring positioning plate are fixed at the upper and lower ends of the inner side of the frame respectively, wherein the lower end of the rubber damping pad is fixedly connected to a rubber pressure plate, and the lower end of the upper suspension rod passes through the rubber damping pad and the rubber pressure plate and is fixedly connected to the spring pressure plate, and an installation spring is provided between the spring pressure plate and the spring positioning plate.

[0011] Furthermore, two symmetrical suspension connection blocks are fixed on the inner side of the main keel, the lower end of the upper suspension rod passes through the spring pressure plate and the frame and is fixedly connected to a suspension hook, and the main keel is hung on the suspension hook through the suspension connection block.

[0012] Furthermore, a support assembly is provided between the concrete roof and the hanger assembly, and the support assembly includes a forward support rod and a reverse support rod that cross each other, and the lower ends of the forward support rod and the reverse support rod are respectively rotatably connected to the middle parts of the two sliding sleeves.

[0013] Furthermore, an angle bracket is fixed to the lower end of the concrete roof, and the upper ends of the forward support rod and the reverse support rod are rotatably connected to the two angle brackets respectively.

[0014] Furthermore, the spring pressure plate and the rubber pressure plate are arranged in parallel, and the angle code is arranged in a strip shape with an L-shaped cross section.

[0015] The beneficial effects achieved by the present invention using the above structure are as follows:

[0016] 1. This solution provides reverse support force through reverse support rods. When an object is vibrated and displaced, the shock absorber will generate a force in the opposite direction of the displacement to resist the displacement. This force is the reverse support force. Through the positive support rods, the positive support force is provided to support the weight of the object and keep the object stable. In the mechanical system, when an object is placed on the support surface, the support surface will exert a positive support force on the object. When an earthquake (vibration) occurs, the positive support force ensures that the building will not collapse due to its own weight, and the reverse support force reduces the horizontal or vertical vibration caused by the earthquake (vibration), so that the building can still maintain a relatively stable state under complex dynamic loads;

[0017] 2. This solution uses the elastic deformation of steel ropes to absorb and buffer vibration energy. At the same time, when the vibration is large, the roof cracks and the lateral spacing of the roof cracks increases, or the lateral spacing of the large-space roof increases due to the increase in deflection. The flexible characteristics of the steel rope can prevent the problem of increased lateral spacing;

[0018] 3. This solution helps to enhance the overall lateral stability by arranging the buffer springs in a lateral manner and cooperating with each other among the various parts of the lateral shock-absorbing assembly. When an earthquake occurs, these lateral springs can generate elastic restoring forces in the opposite direction of the earthquake force, limiting the lateral deformation of the structure, thereby improving the seismic performance of the building and reducing the structural damage that may be caused by the impact force caused by the earthquake and its accidents;

[0019] 4. This solution is set up as a vertical spring by installing the spring. At the same time, through the mutual cooperation between the various parts of the vertical shock-absorbing assembly, it can well cope with the impact of the object in the vertical direction. The vertically installed spring can produce corresponding elastic deformation to absorb and buffer the impact force according to Hooke's law F=KX, where F is the force exerted on the spring, K is the spring constant, and X is the deformation of the spring. It can buffer the impact force caused by the fall of the upper ventilation duct. At the same time, in conjunction with the steel rope connected to it, it can buffer the impact force caused by the explosion in the event of an accidental explosion, reduce the risk of falling, and increase safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the overall structure of this embodiment;

[0021] Figure 2 It is a schematic diagram of the overall installation structure in this embodiment;

[0022] Figure 3 Schematic diagram of the cross-sectional structure of the frame in this embodiment;

[0023] Figure 4 is a schematic diagram of the overall structure of the lateral shock-absorbing assembly in this embodiment;

[0024] Figure 5 It is a schematic diagram of the overall structure of the angle code in this embodiment.

[0025] Among them, 1. concrete roof; 2. hanger assembly; 3. lateral shock absorber assembly; 4. support assembly; 5. hanging assembly; 6. vertical shock absorber assembly; 201. main keel; 202. hanging connection block; 301. fixed installation block; 302. sliding rod; 303. sliding sleeve; 304. buffer spring; 401. angle code; 402. forward support rod; 403. reverse support rod; 501. steel rope; 502. expansion bolt; 601. upper hanging rod; 602. frame; 603. rubber damping pad; 604. rubber pressure plate; 605. spring pressure plate; 606. installation spring; 607. spring positioning plate; 608. suspension hook.

[0026] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] Reference Figure 1 - Figure 5 As shown, an earthquake-resistant keel ceiling structure in a preferred embodiment of the present invention comprises a concrete roof 1, a hanger assembly 2 is provided below the concrete roof 1, a pair of transverse shock-absorbing assemblies 3 are provided at the upper end of the hanger assembly 2, and the pair of transverse shock-absorbing assemblies 3 are staggered, a support assembly 4 is provided between the hanger assembly 2 and the concrete roof 1, a hanging assembly 5 is provided at the lower end of the concrete roof 1, and a vertical shock-absorbing assembly 6 is provided at the lower end of the hanging assembly 5;

[0029] The hanger assembly 2 includes a main keel 201 , and two groups of symmetrical hanging connection blocks 202 are fixed on the inner wall of the upper end of the main keel 201 .

[0030] Reference Figure 1 - Figure 4 As shown, the transverse shock-absorbing assembly 3 includes two pairs of fixed mounting blocks 301 fixedly connected to the upper end of the main keel 201, a sliding rod 302 is fixedly connected between each pair of fixed mounting blocks 301, a sliding sleeve 303 is slidably connected to the middle of the sliding rod 302, a buffer spring 304 is sleeved on the middle of the sliding rod 302, and the buffer spring 304 is arranged between the sliding sleeve 303 and the fixed mounting block 301;

[0031] This solution can generate an elastic restoring force in the opposite direction of the earthquake force through the transverse spring, limit the lateral deformation of the structure, thereby improving the seismic performance of the building and reducing the structural damage that may be caused by an earthquake.

[0032] Reference Figure 1 - Figure 4 As shown, the support assembly 4 includes a pair of angle brackets 401 fixedly connected to the lower end of the concrete roof 1, and the pair of angle brackets 401 are arranged in a one-to-one correspondence with the pair of sliding sleeves 303, wherein the lower end of one group of angle brackets 401 is rotatably connected to a positive support rod 402, and the lower end of the positive support rod 402 is rotatably connected to the middle of a corresponding group of sliding sleeves 303, and the lower end of the other group of angle brackets 401 is rotatably connected to a reverse support rod 403, and the lower end of the reverse support rod 403 is rotatably connected to the middle of the other group of sliding sleeves 303;

[0033] This solution uses the positive support rod 402 to provide a positive support force for supporting the weight of an object and maintaining the stability of the object. In a mechanical system, when an object is placed on a support surface, the support surface will exert a positive support force on the object. The reverse support rod 403 provides a reverse support force. When an object is vibrated and displaced, the shock absorber will generate a force in the opposite direction of the displacement to resist the displacement. This force is the reverse support force.

[0034] Reference Figure 1 - Figure 4 As shown, the hanging assembly 5 includes a pair of expansion bolts 502 fixedly connected to the lower end of the concrete roof 1, and the lower ends of the pair of expansion bolts 502 are fixedly connected with steel ropes 501;

[0035] The expansion bolt 502 of this solution is any one of M10, M12 or M14;

[0036] The steel rope 501 model is: 6×19S + FC or IWR.

[0037] Reference Figure 1 - Figure 4As shown, the vertical shock-absorbing assembly 6 includes a pair of upper suspension rods 601 fixedly connected to the lower ends of a pair of steel ropes 501, a frame 602 is slidably connected to the middle part of the upper suspension rods 601, a rubber damping pad 603 is fixedly connected to the internal upper end of the frame 602, a rubber pressure plate 604 is fixedly connected to the lower end of the rubber damping pad 603, and the upper suspension rod 601 penetrates the rubber damping pad 603 and the rubber pressure plate 604. At the same time, a spring pressure plate 605 is fixedly connected to the lower end of the upper suspension rod 601 and located inside the frame 602, and a mounting spring 606 is fixedly connected to the lower end of the spring pressure plate 605, and a spring positioning plate 607 is fixedly connected to the internal lower end of the frame 602, and the upper end of the spring positioning plate 607 is fixedly connected to the lower end of the mounting spring 606, and a suspension hook 608 is fixedly connected to the lower end of the frame 602, and an open end of the suspension hook 608 is plugged into and pulled out of the suspension connection block 202;

[0038] This solution is set up as a vertical spring by installing spring 606. At the same time, through the mutual cooperation between the various parts of the vertical shock-absorbing component 6, it can well cope with the impact of the object in the vertical direction. The vertically installed spring can produce corresponding elastic deformation to absorb and buffer the impact force according to Hooke's law F=KX, where F is the force exerted on the spring, K is the spring constant, and X is the deformation of the spring.

[0039] As shown in FIG5 , the angle code 401 is arranged in a strip shape with an L-shaped cross section;

[0040] Specific implementation process: A pair of mutually symmetrical hanging connection blocks 202 are fixedly connected to the upper end of the main keel 201. The hanging connection block 202 is a key part for connecting with other components. It is connected to the lateral shock-absorbing component 3, etc. The main keel 201, as the main load-bearing structure, bears the weight of the suspended objects such as the ceiling panels, lamps, ventilation equipment, etc. below, and transmits these weights and possible external forces to the lateral shock-absorbing component 3 and the entire support and shock-absorbing system through the hanging connection block 202, thus constructing the basic load-bearing frame of the entire ceiling structure, ensuring that the weight of the suspended objects below can be reasonably dispersed and transmitted, providing a stable force foundation for the subsequent shock-absorbing components to play a role, and ensuring the structural stability of the ceiling during normal use and when encountering external forces such as earthquakes. The anti-vibration assembly 3 includes two pairs of fixed mounting blocks 301 fixedly connected to the upper end of the main keel 201, and a sliding rod 302 is fixedly connected between each pair of fixed mounting blocks 301. A sliding sleeve 303 is slidably connected to the middle part of the sliding rod 302, and a buffer spring 304 is sleeved on the middle part of the sliding rod 302. Under the action of external forces such as earthquakes (vibrations), when the main keel 201 is subjected to horizontal forces such as the lateral impact force generated by earthquake waves, the force will be transmitted to the fixed mounting blocks 301, and then transmitted to the sliding rod 302. The sliding sleeve 303 will slide relatively on the sliding rod 302. In this process, the buffer spring 304 is compressed or stretched. According to Hooke's law, the buffer spring 304 will generate an elastic restoring force opposite to the direction of the external force. For example, when the earthquake force makes When the sliding sleeve 303 slides to the left, the buffer spring 304 is compressed, and it generates an elastic restoring force to the right to resist this displacement, thereby limiting the lateral deformation of the structure. The elastic deformation of the buffer spring 304 absorbs and buffers the earthquake force in the horizontal direction, thereby enhancing the lateral stability of the entire ceiling structure and reducing the lateral deformation damage of the structure that may be caused by an earthquake, so that the ceiling can remain relatively stable when subjected to lateral force, thereby ensuring its normal use function and safety. The support assembly 4 includes a pair of angle codes 401 fixedly connected to the lower end of the concrete roof 1, and the pair of angle codes 401 are arranged in a one-to-one correspondence with the pair of sliding sleeves 303. The lower end of one of the angle codes 401 is fixedly connected to a positive support rod 402, and the lower end of the positive support rod 402 is connected to one of the The middle part of the sliding sleeve 303 is rotatably connected, and the lower end of another angle code 401 is fixedly connected with a reverse support rod 403. The reverse support rod 403 is rotatably connected to the middle part of another sliding sleeve 303. The angle code 401 serves as a transition component connecting the concrete roof 1 and the support rod, and firmly connects the roof with the positive and reverse support rods. Under normal conditions, the positive support rod 402 provides an upward support force to support the weight of the entire ceiling structure and its suspended objects, ensuring that the building will not collapse due to its own weight, just like the positive support force exerted by the support surface when an object is placed on the support surface. When an earthquake occurs and shaking occurs, the reverse support rod 403 comes into play. According to the principle that when an object is displaced by vibration, the shock-absorbing device generates a reverse force to resist displacement,The reverse support rod 403 will generate a force in the opposite direction to the displacement caused by the earthquake to resist the horizontal or vertical vibration caused by the earthquake wave. At the same time, the positive support rod 402 continues to provide support force to maintain the stability of the structure. Moreover, since the support rod and the sliding sleeve 303 are rotatably connected, the angle change can be flexibly adapted to avoid stress concentration during the force transmission and structural deformation process. Through the synergistic effect of the positive and reverse support rods, the overall stability of the ceiling structure is guaranteed during an earthquake (vibration) to prevent collapse due to its own weight, and the horizontal and vertical vibrations caused by the earthquake (vibration) can be effectively resisted, reducing the shaking and deformation of the structure, so that the building can still maintain a relatively stable state under complex dynamic loads. The hanging assembly 5 includes a fixed connection A pair of expansion bolts 502 are provided at the lower end of the concrete roof 1, and the lower ends of the pair of expansion bolts 502 are fixedly connected with steel ropes 501. The remaining parts and principles are used as follows: the expansion bolts 502 firmly fix the steel ropes 501 on the concrete roof 1. The steel ropes 501 have good elastic deformation ability. When an earthquake occurs and cracks appear on the roof, and the lateral spacing of the roof increases, the steel ropes 501 can extend accordingly by utilizing their flexible characteristics to avoid being pulled and broken due to rigid connection. At the same time, the steel ropes 501 can also transmit the gravity of the suspended ceiling and the seismic force to the vertical shock-absorbing assembly 6, and can absorb and buffer part of the vibration energy through their own elastic deformation during the transmission process, thereby reducing the impact force transmitted to the structure below, thereby realizing the connection between the suspended ceiling structure and the vertical shock-absorbing assembly 6. The soft connection of the roof improves the ability of the structure to cope with roof deformation in the lateral direction, enhances the seismic toughness of the overall structure, reduces the occurrence of damage such as ceiling falling due to changes in the roof structure, and also lays the foundation for the subsequent vertical shock-absorbing assembly 6 to better play its shock-absorbing role. The upper suspension rod 601, the frame 602, the rubber damping pad 603, the rubber pressure plate 604, the spring pressure plate 605, the installation spring 606, the spring positioning plate 607 and the suspension hook 608, the vertical shock-absorbing assembly 6 includes a pair of upper suspension rods 601 fixedly connected to the lower ends of a pair of steel ropes 501, the middle part of the upper suspension rod 601 is slidably connected to the frame 602, the inner upper end of the frame 602 is fixedly connected to the rubber damping pad 603, and the lower end of the rubber damping pad 603 is fixedly connected to the rubber The pressure plate 604, the lower end of the upper suspension rod 601 and the interior of the frame 602 are fixedly connected with a spring pressure plate 605, the lower end of the spring pressure plate 605 is fixedly connected with a mounting spring 606, the lower end of the interior of the frame 602 is fixedly connected with a spring positioning plate 607, the upper end of the spring positioning plate 607 is fixedly connected to the lower end of the mounting spring 606, and the lower end of the frame 602 is fixedly connected with a suspension hook 608. When the ceiling is subjected to external forces in the vertical direction, such as the up and down vibration impact force caused by an earthquake or its own gravity, the force is transmitted to the upper suspension rod 601 through the steel rope 501, and the upper suspension rod 601 will slide in the frame 602. During the sliding process, the rubber damping pad 603 and the rubber pressure plate 604 will be squeezed first. The damping characteristics of the rubber material can consume part of the energy.It plays a preliminary shock-absorbing and buffering role. At the same time, the installation spring 606 will also be compressed or stretched. According to Hooke's law, where is the force exerted on the spring, is the stiffness coefficient of the spring, and is the deformation of the spring. The installation spring 606 produces corresponding elastic deformation to absorb and buffer this impact force. The spring positioning plate 607 is used to fix the lower end position of the installation spring 606 to ensure the normal operation of the spring. Through the synergistic effect of the rubber damping pad 603 and the installation spring 606, the impact of the vertical impact force on the ceiling structure is effectively reduced, and it can well cope with the impact of the object in the vertical direction, ensure the stability of the ceiling structure under vertical force, and reduce structural damage caused by vertical vibration, such as the falling of the ceiling board and the deformation of the keel, further improve the seismic performance of the entire seismic keel ceiling structure, so that it can still maintain a relatively stable state under the action of complex external forces such as earthquakes, and ensure its use function and safety;

[0041] When an earthquake occurs, all components of the entire seismic keel ceiling structure work together. The lateral shock-absorbing component 3 resists the horizontal seismic force. The supporting component 4 maintains the overall horizontal and vertical stability of the structure through the positive and reverse support rods. The steel rope 501 of the hanging component 5 responds to the lateral deformation of the roof and transmits force. The vertical shock-absorbing component 6 buffers the impact force in the vertical direction. The various parts cooperate with each other to absorb and buffer the seismic force from different directions and angles, reduce the deformation and damage of the structure, and enable the ceiling structure to remain relatively stable under complex dynamic load environments, thereby ensuring its normal use and safety performance in extreme situations such as earthquakes.

[0042] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. An earthquake-resistant keel ceiling structure, characterized in that: The invention comprises a hanging assembly (5) arranged at the bottom of a concrete roof (1), wherein the lower end of the hanging assembly (5) is connected to a hanger assembly (2) via a vertical shock-absorbing assembly (6), wherein the hanger assembly (2) comprises a main keel (201), two transverse shock-absorbing assemblies (3) are centrally symmetrically distributed on the inner side of the main keel (201), and the hanging assembly (5) comprises an expansion bolt (502) fixedly connected to the lower end of the concrete roof (1) and a steel rope (501) fixed to the lower end of the expansion bolt (502).

2. The seismic keel ceiling structure according to claim 1, characterized in that: The transverse shock-absorbing assembly (3) comprises two fixed mounting blocks (301) fixedly connected to the main keel (201), and a transverse sliding rod (302) is fixedly connected between the fixed mounting blocks (301), a sliding sleeve (303) is slidably sleeved in the middle of the sliding rod (302), and a buffer spring (304) movably sleeved on the sliding rod (302) is provided between the sliding sleeve (303) and the fixed mounting blocks (301).

3. The seismic keel ceiling structure according to claim 1, characterized in that: The vertical shock-absorbing assembly (6) comprises an upper suspension rod (601) and a frame (602), wherein the upper end of the upper suspension rod (601) is fixed to the lower end of the steel rope (501), and the frame (602) is slidably connected to the upper suspension rod (601).

4. The seismic keel ceiling structure according to claim 1, characterized in that: A rubber damping pad (603) and a spring positioning plate (607) are fixed to the upper and lower ends of the inner side of the frame (602), respectively, wherein the lower end of the rubber damping pad (603) is fixedly connected to a rubber pressure plate (604), and the lower end of the upper suspension rod (601) passes through the rubber damping pad (603) and the rubber pressure plate (604) and is fixedly connected to the spring pressure plate (605), and an installation spring (606) is provided between the spring pressure plate (605) and the spring positioning plate (607).

5. The seismic keel ceiling structure according to claim 4, characterized in that: Two symmetrical suspension connection blocks (202) are fixed on the inner side of the main keel (201); the lower end of the upper suspension rod (601) passes through the spring pressure plate (605) and the frame (602) and is fixedly connected to a suspension hook (608); and the main keel (201) is hung on the suspension hook (608) through the suspension connection block (202).

6. The seismic keel ceiling structure according to claim 1, characterized in that: A support assembly (4) is provided between the concrete roof (1) and the hanger assembly (2), the support assembly (4) comprising a forward support rod (402) and a reverse support rod (403) that cross each other, the lower ends of the forward support rod (402) and the reverse support rod (403) being rotatably connected to the middle parts of the two sliding sleeves (303).

7. The seismic keel ceiling structure according to claim 6, characterized in that: An angle bracket (401) is fixed to the lower end of the concrete roof (1), and the upper ends of the forward support rod (402) and the reverse support rod (403) are rotatably connected to the two angle brackets (401) respectively.

8. An earthquake-resistant keel ceiling structure according to any one of claims 2, 3 and 5, characterized in that: The spring pressure plate (605) and the rubber pressure plate (604) are arranged in parallel, and the angle code (401) is arranged in the shape of a strip with an L-shaped cross section.

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