Flexible suspended ceiling system with seismic reinforcement nodes and method of installation

Abstract

The present application relates to a kind of tough ceiling system with anti-seismic reinforced node, including longitudinal and transverse main keel, secondary keel, the secondary keel is segmented, is connected by first lock catch at segmented position, main keel leaves first hole, the first lock catch passes from the first hole, still include a anti-seismic clip, the anti-seismic clip has a arch in the middle;The arch is clamped on the main keel;Arch both sides are equipped with clamping plate part, the clamping plate part clamps the secondary keel, and a anti-seismic clip is fixedly connected with secondary keel using first fixed screw.The present application uses the design idea of "strong node weak component", proposes a kind of tough ceiling system with anti-seismic reinforced node and its construction method, to realize the quick, efficient promotion of the seismic performance of ceiling system.

Description

Technical Field

[0001] This invention relates to a ceiling system, and more particularly to a resilient ceiling system with seismic-enhanced nodes and its installation method, belonging to the field of non-structural component vibration reduction technology. Background Technology

[0002] Suspended ceiling systems offer excellent thermal insulation, sound insulation, and aesthetics, and are widely used in various public buildings and critical disaster-prevention structures, such as emergency centers, hospitals, schools, and stadiums. Earthquake damage surveys and testing have revealed that suspended ceilings are susceptible to severe damage under seismic loads. Typical damage modes include detachment of the ceiling joists from the edge joists, joint failure, panel detachment, and even large-scale collapse. Such damage not only causes significant direct economic losses but also easily disrupts the building's functionality, severely impacting post-earthquake recovery and posing a potential threat to human safety. Therefore, improving the seismic performance of suspended ceilings is crucial for enhancing their seismic resilience, maintaining building functionality, and facilitating post-earthquake recovery.

[0003] Existing methods for improving the seismic performance of suspended ceilings generally rely on damping devices to dissipate seismic energy, thereby protecting the ceiling system. However, these devices typically require significant horizontal displacement to function effectively. In actual earthquakes, the horizontal movement space of a suspended ceiling system, constrained by surrounding walls and other structural members, is often limited, resulting in limited energy dissipation and the system still susceptible to damage due to insufficient load-bearing capacity at the joist joints. Furthermore, existing damping devices are generally complex in design, fabrication, and installation, making them inconvenient for practical engineering applications, and particularly difficult to meet the seismic performance improvement needs of existing suspended ceiling systems. Therefore, developing a novel device that can rapidly and efficiently improve the seismic performance of suspended ceiling systems has significant engineering application value for effectively mitigating seismic damage to suspended ceilings.

[0004] Prior art citations:

[0005] Chinese patent document CN117926967A, published on April 26, 2024, discloses a ceiling main and secondary keel node with a return spring. By consuming seismic energy and providing return capability through the return spring, the stiffness, load-bearing capacity and return performance of the keel node can be effectively improved, thereby enhancing the seismic performance of the ceiling system.

[0006] Chinese patent document published on February 6, 2024, with publication number CN117513571, discloses a ceiling system with a damping structure, which reduces the seismic response of the ceiling through a damping unit, thereby protecting the ceiling system from serious damage.

[0007] Chinese patent document CN119041623A, published on November 29, 2024, discloses a ceiling system with a friction damper and a vibration isolation hanger. The friction damper is used to dissipate seismic energy, and the vibration isolation hanger is used to provide the ceiling with a restoring ability to improve the seismic toughness of the ceiling system.

[0008] Publication No. 2024-01-02 and Publication Date CN117328603A authorize a ceiling system with a shock absorber, which consumes seismic energy to improve the seismic performance of the ceiling system. Summary of the Invention

[0009] To address the aforementioned problems, this invention adopts a "strong node, weak component" design concept, proposing a resilient ceiling system with seismic-enhanced nodes and its construction method to achieve a rapid and efficient improvement in the seismic performance of the ceiling system. The resilient ceiling system with seismic-enhanced nodes proposed in this invention mainly includes seismic-resistant keel nodes with I-shaped seismic clamps and self-resetting damping edge nodes with L-shaped seismic clamps. Its purpose is achieved through the following technical solutions:

[0010] A resilient ceiling system with earthquake-resistant reinforced nodes includes a crisscrossing main keel 2 and secondary keels 1. The secondary keels 1 are segmented and connected at the segment positions by latches 101. The main keel 2 has a first hole through which the latches 101 pass. The system also includes a straight earthquake-resistant clip 4 with an arched section in the middle. The arched section is secured to the main keel 2. Clamping plates are provided on both sides of the arched section, which clamp the secondary keel 1. The straight earthquake-resistant clip 4 is fixedly connected to the secondary keel 1 by a first fixing screw 401.

[0011] Preferably, it also includes a cross brace 3, which is parallel to the main keel 2 and is segmented. Adjacent cross braces 3 are connected by a second latch 301 at the segmented positions. The secondary keel 1 has a second hole. At the intersection of the cross brace 3 and the secondary keel 1: the second latch 301 passes through the second hole; the arched part of the straight-type anti-seismic clamp 4 is locked on the secondary keel 1; the clamping plate part of the straight-type anti-seismic clamp 4 clamps the cross brace 3, and the straight-type anti-seismic clamp 4 is fixedly connected to the cross brace 3 by a first fixing screw 401.

[0012] Furthermore, it also includes a side keel 6 and an L-shaped seismic clamp 5; the side keel 6 has an L-shaped cross-section, with one end fixed to the perimeter components 7 of the ceiling, and the other end forming a bearing surface; the secondary keel 1, main keel 2, and cross brace keel 3, which are perpendicular to and directly opposite the side keel 6, are collectively referred to as keel components; the keel components rest on the bearing surface; the L-shaped seismic clamps 5 are arranged in pairs on their sides to form guide grooves for limiting the keel components; one end plate of the L-shaped seismic clamp 5 is a rigid connector 501, which is connected to the side keel by a second fixing screw 502. The keel 6 and the surrounding components 7 of the ceiling are fixedly connected. A sliding groove 506 is opened in the vertical surface of the other end plate. A sliding screw 505 passes through the sliding groove 506 and is fixedly connected to the keel component, so that the keel component can slide slightly along the sliding groove 506 with the sliding screw 505. A damping rubber block 503 is fixedly installed at one end of the keel 6 near the edge in the sliding groove 506. A non-linear spring 504 is installed between the damping block 503 and the sliding screw 505. The non-linear spring 504 is fixedly connected to the damping rubber block 503.

[0013] Preferably, it also includes a hanger rod 9 and a hanger 10, wherein the hanger 10 is fixed on the main keel 2 at a node near the secondary keel 1, and the hanger rod 9 is connected to the hanger 10.

[0014] Furthermore, it also includes a panel 8, which is square and fixed within the square area formed by the secondary keel 1, the main keel 2, and the cross brace 3.

[0015] An installation method for the above-mentioned resilient ceiling system with seismic-enhanced nodes includes the following steps:

[0016] S1. Assemble the ceiling system: The keel components are arranged at intervals, and the panel 8 is placed in the grid formed by the orthogonal keel components; the upper end of the hanger 9 is fixed to the bottom of the structural floor slab with bolts, and the lower end is connected to the main keel 2 with the hanger 10; the hanger 10 is fixed to the hanger 9 and the main keel 2 with nuts.

[0017] S2. Installation of main and secondary keel nodes with I-shaped seismic clamps: Two secondary keels 1 are mechanically connected by the first locking buckle 101 to form a main and secondary keel node; holes are drilled on the two secondary keels 1 respectively, and the size of the holes is the same as the size of the reserved holes on the I-shaped seismic clamp 4; after aligning the two holes on the I-shaped seismic clamp 4 with the holes on the two secondary keels 1, they are connected using the first fixing screw 401; for the holes on the secondary keels 1, the holes for newly built ceiling systems are drilled in the factory and then assembled on site, while the holes for existing ceiling systems that need seismic reinforcement are drilled directly on the construction site;

[0018] S3. Install the secondary keel-cross brace keel node with the I-shaped seismic clamp: The two cross braces keels 3 are mechanically connected to form the secondary keel-cross brace keel node; Drill holes on the two cross braces keels 3 respectively, and the size of the holes is the same as the size of the reserved holes on the I-shaped seismic clamp 4; After aligning the two holes on the I-shaped seismic clamp 4 with the holes on the two cross braces keels 3, connect them using the first fixing screw 401;

[0019] S4. Install the self-resetting damping edge node with L-shaped anti-seismic clamp 5: Different types of keel components are placed on the web of the edge keel 6, with a certain gap reserved between them and the flange to ensure that the ceiling has horizontal sliding space; the damping rubber block 503 and the nonlinear spring 504 are connected in series; one end of the rigid connector 501 is fixed to the perimeter component 7 of the ceiling with a second fixing screw 502, and the other end is connected to the keel component with a sliding screw 505; the sliding screw 505 is installed in the middle of the slide groove 506 of the L-shaped anti-seismic clamp 5 to ensure that it can slide along the slide groove 506. Axial sliding occurs; when the sliding screw 505 slides towards the edge keel 6, the sliding screw 505 gradually contacts the nonlinear spring 504 and compresses the spring. After being compressed, the nonlinear spring 504 stores some energy to provide self-resetting capability for the ceiling. At the same time, the nonlinear spring 504 further transmits the force to the damping rubber block 503. The damping rubber block 503 deforms after being compressed and dissipates seismic energy in the process. Meanwhile, the sliding screw 505 dissipates some seismic energy through friction between itself and the groove 506 throughout the sliding process.

[0020] Furthermore, in step S2, to prevent the I-shaped anti-vibration clip 4 from affecting the installation of the panel 8 during installation, the distance between its bottom and the flange of the secondary keel 1 is... And its height Hs must meet the following requirements:

[0021]

[0022]

[0023] In the formula: H is the cross-sectional height of the secondary keel 1; for the secondary keel-cross brace keel node with a straight seismic clamp, H is the cross-sectional height of the cross brace keel 3; h0 is the thickness of the panel.

[0024] The axial stiffness K of the straight seismic clamp 4 itself shall not be less than the axial stiffness K0 of the keel node, specifically satisfying the following requirement:

[0025]

[0026] In the formula: E is the elastic modulus of the material of the I-shaped seismic clamp 4, A and L are the cross-sectional area and length of the I-shaped seismic clamp 4, respectively; K0 is the elastic axial stiffness of the primary and secondary keel nodes.

[0027] Furthermore, in step S4, the gap width D between the keel component and the flange of the side keel 6 satisfies the following condition:

[0028]

[0029] In the formula: B is the distance between the end of the nonlinear spring 504 and the end of the groove 506; The width of the web of the edge keel 6.

[0030] The beneficial effects of this invention are as follows:

[0031] 1) Installing a straight-line seismic clamp at the keel joint enables direct transfer of internal forces between keel components, fully utilizing the load-bearing capacity of the keel components while protecting the keel joint from damage. Furthermore, by rationally designing the dimensions of this seismic clamp, it is possible to avoid impacting panel installation.

[0032] 2) Install L-shaped seismic clamps on all four sides of the ceiling to form self-resetting damping edge nodes. These clamps not only prevent the ends of the keel from detaching from the edge keel, but also allow the keel to slide axially to provide a certain deformation space. During the sliding process, the compression spring provides a certain self-resetting capability for the ceiling. The spring drives the high-damping rubber block to deform, which can dissipate seismic energy. In addition, the sliding screw can dissipate some seismic energy through friction during the sliding process.

[0033] 3) By setting self-resetting shock-absorbing edge nodes on the four sides of the ceiling to dissipate energy, and using straight-line anti-seismic clamps to improve the seismic resistance of the keel nodes, a resilient ceiling system with good seismic performance is formed.

[0034] 4) The seismic clamps used can all be prefabricated in the factory, which can improve the efficiency of on-site construction and facilitate replacement after an earthquake;

[0035] 5) Seismic clamps can be easily installed at ceiling joints, and can be used not only for new ceiling systems, but also for rapidly improving the seismic performance of existing ceiling systems. Attached Figure Description

[0036] Figure 1 This is an overall rendering of the resilient ceiling system with earthquake-resistant and reinforced nodes of the present invention.

[0037] Figure 2 yes Figure 1 A magnified view of the upper left corner.

[0038] Figure 3 This is a three-dimensional overall view of the main and secondary keel nodes with I-shaped seismic clamps.

[0039] Figure 4 This is a three-dimensional overall view of the secondary keel-cross brace keel node with a straight seismic clamp.

[0040] Figure 5 Detailed drawing of the main and secondary keel joints with I-shaped seismic clamps.

[0041] Figure 6 Detailed drawing of the joints of the horizontal bracing keel and secondary keel with I-shaped seismic clamps.

[0042] Figure 7 This is a three-dimensional overall view of a self-resetting damping edge node with an L-shaped seismic clamp.

[0043] Figure 8 This is a top view of an L-shaped seismic clamp.

[0044] Figure 9 This is a detailed drawing of a self-resetting damping edge node.

[0045] Symbol explanations in the diagram: 1-Secondary keel, 101-First locking buckle, 2-Main keel, 3-Horizontal bracing keel, 301-Second locking buckle, 4-Slotted anti-seismic clamp, 401-First fixing screw, 5-L-shaped anti-seismic clamp, 501-Rigid connector, 502-Second fixing screw, 503-Damping rubber block, 504-Nonlinear spring, 505-Sliding screw, 506-Slide groove, 6-Side keel, 7-Ceiling peripheral components, 8-Panel, 9-Hanging rod, 10-Hanging component. Detailed Implementation

[0046] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0047] See Figure 1-8 A resilient ceiling system with earthquake-resistant reinforced nodes includes crisscrossing main keels 2 and secondary keels 1, wherein the secondary keels 1 are segmented (e.g., Figure 3 ), connected at the segment position by the first latch 101 (e.g. Figure 5 The main keel 2 has a first hole through which the first latch 101 passes. It also includes a straight-line seismic clamp 4 with an arched section in the middle. The arched section is secured to the main keel 2. Clamping plates are provided on both sides of the arched section, clamping the secondary keel 1. The straight-line seismic clamp 4 is fixedly connected to the secondary keel 1 using a first fixing screw 401. It should be noted that the first hole is not shown separately in the attached diagram, but it can be seen as a joint. Figure 3 and Figure 5 To understand.

[0048] In this embodiment, combined with Figure 4It also includes a cross brace 3, which is parallel to the main keel 2 and is segmented. Adjacent cross braces 3 are connected at the segment positions by a second latch 301. The secondary keel 1 has a second hole. At the intersection of the cross brace 3 and the secondary keel 1: the second latch 301 passes through the second hole; the arched part of the I-shaped seismic clamp 4 is engaged with the secondary keel 1; the clamping plate part of the I-shaped seismic clamp 4 clamps the cross brace 3, and the I-shaped seismic clamp 4 is fixedly connected to the cross brace 3 using a first fixing screw 401. It should be noted that the second hole is not shown separately in the attached diagram, but it can be considered in conjunction with... Figure 4 and Figure 6 To understand.

[0049] In this embodiment, combined with Figure 7-9 It also includes a side keel 6 and an L-shaped seismic clamp 5; the side keel 6 has an L-shaped cross-section, with one end fixed to the perimeter components 7 of the ceiling, and the other end forming a bearing surface; the secondary keel 1, main keel 2, and cross brace keel 3, which are perpendicular to and directly opposite the side keel 6, are collectively referred to as keel components; the keel components rest on the bearing surface; the L-shaped seismic clamps 5 are arranged in pairs on their sides to form guide grooves for limiting the position of the keel components; one end plate of the L-shaped seismic clamp 5 is a rigid connector 501, which is connected to the side keel 6 by a second fixing screw 502. The ceiling perimeter components 7 are fixedly connected, and a sliding groove 506 is opened in the vertical surface of the other end plate. A sliding screw 505 passes through the sliding groove 506 and is fixedly connected to the keel component, so that the keel component can slide slightly along the sliding groove 506 with the sliding screw 505. A damping rubber block 503 is fixedly installed at one end of the keel 6 near the edge in the sliding groove 506. A non-linear spring 504 is installed between the damping block 503 and the sliding screw 505. The non-linear spring 504 is fixedly connected to the damping rubber block 503.

[0050] Because the sliding screw 505 can slide within the groove 506 of the L-shaped seismic clamp, it provides a certain amount of deformation space for the ceiling system. When the sliding screw 505 contacts the spring, the spring is compressed and deformed to store seismic energy, providing a certain degree of self-resetting capability for the ceiling. Simultaneously, the compression of the spring causes the high-damping rubber block to deform under pressure, thereby dissipating seismic energy. Furthermore, the sliding screw can also dissipate some seismic energy through friction during its sliding process.

[0051] See Figure 1-2 It also includes a hanger 9 and a hanger 10. The hanger 10 is fixed on the main keel 2 at a node near the secondary keel 1, and the hanger 9 is connected to the hanger 10.

[0052] See also Figure 1-2 It also includes a panel 8, which is square and fixed within the square area formed by the secondary keel 1, the main keel 2, and the cross brace keel 3.

[0053] This embodiment provides a ceiling system with seismic-enhanced nodes and its installation method to improve the overall seismic performance of the ceiling system. It mainly includes the following steps:

[0054] S1. Assemble the ceiling system. The ceiling system mainly consists of different types of keel components 1, 2, and 3, edge keels 6, panels 8, and hangers 9. Keel components 1, 2, and 3 are arranged at intervals according to conventional ceiling construction methods. Panels 8 are placed within the grid formed by the orthogonal arrangement of keel components 1, 2, and 3. The upper end of the hanger 9 is fixed to the bottom of the structural floor slab with bolts, and the lower end is connected to the main keel 2 with hangers 10. Hangers 10 are fixed to both the hanger 9 and the main keel 2 with nuts.

[0055] S2. Install the main and secondary keel nodes with I-shaped seismic clamps. Two secondary keels 1 are mechanically connected via locking clips 101 to form a main and secondary keel node. Drill holes in both secondary keels 1, the size of which matches the pre-drilled holes in the I-shaped seismic clamps 4. Align the two holes on the I-shaped seismic clamps 4 with the holes on the two secondary keels 1, and then connect them using screws 401. For the holes on the secondary keels 1, newly constructed ceiling systems can have the holes drilled in the factory and then assembled on-site; existing ceiling systems requiring seismic reinforcement can have the holes drilled directly on-site. To avoid the I-shaped seismic clamps 4 interfering with the installation of the panel 8 during installation, the distance between its bottom and the flange of the secondary keel 1 is... and its own height H s The following requirements should be met respectively:

[0056]

[0057]

[0058] In the formula: H is the cross-sectional height of the secondary keel 1. It should be noted that for the secondary keel-cross brace keel node with I-shaped seismic clamp, H is the cross-sectional height of the cross brace keel 3; h0 is the thickness of the panel.

[0059] To ensure that the I-shaped seismic clamp 4 can effectively transfer the internal forces between the keels, its own axial stiffness K should not be less than the axial stiffness K0 of the keel joint, specifically satisfying the following requirement:

[0060]

[0061] In the formula: E is the elastic modulus of the seismic clamp 4, A and L are the cross-sectional area and length of the seismic clamp 4A, respectively; K0 is the elastic axial stiffness of the primary and secondary keel nodes.

[0062] S3. Install the secondary keel-cross brace keel node with a straight-type seismic clamp. Similar to the primary and secondary keel nodes, the two cross braces 3 are mechanically connected to form the secondary keel-cross brace keel node. Drill holes in both cross braces 3, with the hole size matching the pre-drilled holes in the straight-type seismic clamp 4. After aligning the two holes on the straight-type seismic clamp 4 with the holes on the two cross braces 3, connect them using screws 401.

[0063] S4. Install the self-resetting damping edge node with L-shaped seismic clamp. Different types of keel components 1 / 2 / 3 are placed on the web of the edge keel 6, with a certain gap reserved between them and the flange to ensure that the ceiling has horizontal sliding space. The L-shaped seismic clamp 5 is mainly composed of a rigid connector 501, a high-damping rubber block 503, and a nonlinear spring 504, wherein the high-damping rubber block 503 and the nonlinear spring 504 are connected in series. One end of 501 is fixed to the perimeter component 7 of the ceiling with a fixing screw 502, and the other end is connected to the keel component 1 / 2 / 3 with a sliding screw 505. The sliding screw 505 is installed in the middle of the sliding groove 506 of the L-shaped seismic clamp 5 to ensure that it can slide axially along the sliding groove 506. As the sliding screw 505 slides towards the edge joist 6, it gradually contacts and compresses the nonlinear spring 504. Under compression, the spring 504 stores some energy to provide self-resetting capability for the ceiling. Simultaneously, the spring 504 further transmits force to the high-damping rubber block 503. The high-damping rubber block 503 deforms under compression, dissipating seismic energy in the process. Meanwhile, the sliding screw 505 also dissipates some seismic energy through friction between itself and the groove 506 throughout the sliding process.

[0064] S5. To ensure sufficient sliding space for the ceiling system, the gap width D between the keel components 1, 2, and 3 and the flange of the edge keel 6 must meet the following conditions:

[0065]

[0066] In the formula: B is the distance between the end of the nonlinear spring 504 and the end of the groove 506; The width of the web of the edge keel 6.

[0067] It should be noted that in actual engineering projects, all four sides of the ceiling system should be set as semi-free sides with L-shaped seismic clamps 5, so as to ensure that all seismic clamps can play an effective role and thus improve the overall seismic performance of the ceiling system.

[0068] The above are preferred embodiments of the present invention. Those skilled in the art can make various modifications or improvements based on these embodiments. Without departing from the overall concept of the present invention, such modifications or improvements should fall within the scope of protection claimed by the present invention.

Claims

1. A resilient ceiling system with earthquake-resistant reinforced nodes, comprising crisscrossing main keels (2) and secondary keels (1), wherein the secondary keels (1) are segmented and connected at the segment positions by first latches (101), and the main keels (2) have first holes through which the first latches (101) pass, characterized in that: It also includes a straight seismic clamp (4), which has an arched part in the middle; the arched part is attached to the main keel (2); Both sides of the arched part are provided with clamping plates. The clamping plates clamp the secondary keel (1) and the first fixing screw (401) is used to fix the straight-line anti-seismic clamp (4) to the secondary keel (1).

2. The resilient ceiling system with seismic-enhanced nodes as described in claim 1, characterized in that: It also includes a cross brace (3), which is parallel to the main keel (2) and is segmented. Adjacent cross braces (3) are connected by a second latch (301) at the segment position. The secondary keel (1) has a second hole. At the intersection of the transverse keel (3) and the secondary keel (1): The second latch (301) passes through the second hole; the arched part of the straight anti-seismic clip (4) is locked on the secondary keel (1); the clamping plate part of the straight anti-seismic clip (4) clamps the cross brace keel (3), and the straight anti-seismic clip (4) and the cross brace keel (3) are fixedly connected by the first fixing screw (401).

3. The resilient ceiling system with seismic-enhanced nodes as described in claim 1 or 2, characterized in that: It also includes the side keel (6) and the L-shaped anti-seismic clamp (5); The side keel (6) has an L-shaped cross section, with one end fixed to the perimeter components (7) of the ceiling and the other end forming a bearing surface; The secondary keel (1), main keel (2), and cross brace keel (3) that are perpendicular to the side keel (6) are collectively referred to as keel components; The keel component rests on the bearing surface; The L-shaped seismic clamps (5) are arranged in pairs on the sides to form guide grooves for limiting the keel components; one end plate of the L-shaped seismic clamps (5) is a rigid connector (501), which is fixedly connected to the side keel (6) and the ceiling perimeter components (7) by the second fixing screw (502), and the other end plate has a sliding groove (506) in the vertical surface. The sliding screw (505) passes through the sliding groove (506) and is fixedly connected to the keel component, so that the keel component can slide slightly along the sliding groove (506) with the sliding screw (505); A damping rubber block (503) is fixedly installed at one end of the near-side keel (6) in the groove (506), and a nonlinear spring (504) is installed between the damping block (503) and the sliding screw (505), and the nonlinear spring (504) is fixedly connected to the damping rubber block (503).

4. The resilient ceiling system with seismic-enhanced nodes as described in claim 1, characterized in that: It also includes a hanger (9) and a hanger (10), wherein the hanger (10) is fixed on the main keel (2) at a node near the secondary keel (1), and the hanger (9) is connected to the hanger (10).

5. The resilient ceiling system with seismic-enhanced nodes as described in claim 2, characterized in that: It also includes a panel (8), which is square and fixed within the square area formed by the secondary keel (1), the main keel (2), and the cross brace keel (3).

6. An installation method for a resilient suspended ceiling system with seismic-enhanced nodes as described in claims 3-5, characterized in that, Includes the following steps: S1. Assemble the ceiling system: The keel components are arranged at intervals, and the panel (8) is placed in the grid formed by the orthogonal keel components; the upper end of the hanger (9) is fixed to the bottom of the structural floor slab with bolts, and the lower end is connected to the main keel (2) with the hanger (10); the hanger (10) is fixed to the hanger (9) and the main keel (2) with nuts. S2. Install the main and secondary keel nodes with the I-shaped seismic clamp: The two secondary keels (1) are mechanically connected by the first lock (101) to form the main and secondary keel nodes; Drill holes on the two secondary keels (1) respectively, and the size of the holes is consistent with the size of the reserved holes on the I-shaped seismic clamp (4); After aligning the two holes on the straight seismic clamp (4) with the holes on the two secondary keels (1), they are connected using the first fixing screw (401). For the holes on the secondary keels (1), the newly built ceiling system is drilled in the factory and then assembled on site, while the existing ceiling system that needs seismic reinforcement is drilled directly on the construction site. S3. Install the secondary keel-cross brace keel node with the I-shaped seismic clamp (4): The two cross braces (3) are mechanically connected to form the secondary keel-cross brace keel node; Drill holes on the two cross braces (3) respectively, and the size of the holes is consistent with the size of the reserved holes on the I-shaped seismic clamp (4); After aligning the two holes on the I-shaped seismic clamp (4) with the holes on the two cross braces (3), connect them using the first fixing screw (401); S4. Install the self-resetting damping edge node with L-shaped anti-seismic clamp (5): Different types of keel components are placed on the web of the edge keel (6), and a certain gap is reserved between them and the flange to ensure that the ceiling has horizontal sliding space; the damping rubber block (503) and the nonlinear spring (504) are connected in series; one end of the rigid connector (501) is fixed to the perimeter component (7) of the ceiling with a second fixing screw (502), and the other end is connected to the keel component with a sliding screw (505); install the sliding screw (505) in the middle of the groove (506) of the L-shaped anti-seismic clamp (5) to ensure that it can slide along the groove (506) 6) Axial sliding occurs; when the sliding screw (505) slides towards the side keel (6), the sliding screw (505) gradually contacts the nonlinear spring (504) and compresses the spring. After being compressed, the nonlinear spring (504) stores some energy to provide self-resetting capability for the ceiling. At the same time, the nonlinear spring (504) will further transmit the force to the damping rubber block (503). The damping rubber block (503) deforms after being compressed and dissipates seismic energy in the process. Meanwhile, the sliding screw (505) dissipates some seismic energy through friction between itself and the groove (506) during the entire sliding process.

7. The installation method of the resilient ceiling system with seismic-enhanced nodes as described in claim 6, characterized in that: In step S2, to prevent the straight-line anti-vibration clip (4) from affecting the installation of the panel (8) during the installation process, the distance between its bottom and the flange of the secondary keel (1) is... And its height Hs must meet the following requirements: In the formula: H is the cross-sectional height of the secondary keel (1), and for the secondary keel-cross brace keel node with a straight seismic clamp, H is the cross-sectional height of the cross brace keel (3); h0 is the thickness of the panel; The axial stiffness K of the straight seismic clamp (4) shall not be less than the axial stiffness K0 of the keel node, and shall specifically meet the following requirements: In the formula: E is the elastic modulus of the material of the straight seismic clamp (4), A and L are the cross-sectional area and length of the straight seismic clamp (4) respectively; K0 is the elastic axial stiffness of the main and secondary keel nodes.

8. The installation method of the resilient ceiling system with seismic-enhanced nodes as described in claim 6, characterized in that: In step S4, the gap width D between the keel component and the flange of the side keel (6) satisfies the following condition: In the formula: B is the distance between the end of the nonlinear spring (504) and the end of the groove (506); The width of the web of the side keel (6).

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