Building structure quakeproof joint

Abstract

The invention provides a building structure quakeproof joint, and belongs to the technical field of building structure quakeproof, the building structure quakeproof joint comprises a top plate, a side plate and a support plate, the top plate is fixedly connected with the bottom of a cross beam, the side plate is fixedly connected with the side wall of a stand column, the top plate is rotatably connected with the side plate, and the support plate is fixed on the side wall of the side plate and is parallel to the top plate; the supporting plate is elastically connected with the side plate through a supporting structure; the supporting structure comprises a longitudinal support and a plurality of inclined supports, the top of the longitudinal support is perpendicularly arranged at the bottom of the top plate and rotationally connected with the top plate, the bottom of the longitudinal support is rotationally connected with the inclined supports, the tops of the inclined supports are slidably connected with the top plate, and the bottoms of the inclined supports are rotationally connected with the longitudinal support. The middle of the inclined bracket is rotationally connected with the side wall of the opening of the side plate; the cross beam can be supported, and the situation that the cross beam descends due to vibration when an earthquake occurs, and a building structure is damaged is avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of earthquake prevention for building structures, and more specifically, relates to an earthquake prevention node for building structures. Background Art

[0002] In construction projects, the seismic reinforcement design and safety construction measures of building structures are of extremely important significance. Earthquake disaster prevention, as a key task before an earthquake occurs, mainly includes engineering defense measures and non-engineering defense measures. Among them, engineering defense measures are the main way to reduce earthquake disasters, mainly achieved through the seismic fortification and reinforcement of buildings and structures to prevent buildings and structures from being damaged by earthquakes and reduce earthquake disasters. Because the direct cause of casualties in earthquakes is often the damage to the ground surface and the damage and collapse of buildings and structures.

[0003] However, there are some deficiencies in the existing earthquake prevention nodes for building structures. First of all, their stability is insufficient. When the building structure vibrates, it is difficult to effectively increase the supporting area of the building structure. In the traditional earthquake prevention node design, when an earthquake occurs, it cannot effectively support the cross beam. The cross beam is prone to drop due to vibration, resulting in the internal space of the building structure being squeezed, and problems such as cracks and peeling in the walls and ceilings, which not only affect the normal use function of the building but may also trigger secondary disasters and pose a threat to the safety of personnel. In addition, the existing earthquake prevention nodes cannot automatically adjust their own structures to enhance the supporting effect on the building structure during an earthquake, and it is difficult to meet the stability requirements of the building structure under earthquake action. Summary of the Invention

[0004] In view of this, the present invention provides an earthquake prevention node for building structures, which can support the cross beam and prevent the cross beam from dropping due to vibration during an earthquake, thereby preventing damage to the building structure.

[0005] The present invention is implemented as follows: The present invention provides an earthquake prevention node for building structures, which includes a top plate, side plates, and a support plate. The top plate is fixedly connected to the bottom of the cross beam, the side plates are fixedly connected to the side walls of the columns, the top plate is rotatably connected to the side plates, the support plate is fixed to the side wall of the side plate and is parallel to the top plate, and the support plate is elastically connected to the side plate through a support structure; the support structure includes a longitudinal bracket and a plurality of inclined brackets. The top of the longitudinal bracket is vertically arranged at the bottom of the top plate and is rotatably connected to the top plate, and the bottom is rotatably connected to the inclined bracket. The top of the inclined bracket is slidably connected to the top plate, and the bottom is rotatably connected to the longitudinal bracket. An opening is provided in the side plate corresponding to the position of the inclined bracket, and the middle of the inclined bracket is rotatably connected to the side wall of the opening in the side plate.

[0006] The technical effects of a seismic shockproof joint for a building structure provided by the present invention are as follows: The fixed connections between the top plate and the cross beam, and between the side plates and the columns construct a stable joint framework. When an earthquake occurs and the top plate drops, the longitudinal support follows the top plate to drop, and the downward movement of its bottom drives the bottom of the inclined support to move synchronously downward and rotate relative to the side plate, while the top of the inclined support moves towards the longitudinal support to provide a supporting force for the top plate. This interaction forms an organic force transmission and energy dissipation system. The longitudinal support and the inclined support cooperate with each other during movement. On the one hand, they consume seismic energy through their own elastic deformation and relative movement, and on the other hand, they maintain the overall stability of the joint, preventing the structure from undergoing excessive deformation or instability under the action of an earthquake, effectively improving the stability and safety of the building structure during an earthquake.

[0007] Claim 2 On the basis of the above technical solution, a seismic shockproof joint for a building structure of the present invention can be further improved as follows: Among them, the top of the inclined support is slidably connected to the top plate through a sliding mechanism. The sliding mechanism includes a slide rail, a slider, and a moving spring. The slide rail is a long strip-shaped depression at the bottom of the top plate, with a slider embedded inside. The bottom of the slider is rotatably connected to the inclined support. One side of the slider is slidably connected to the slide rail through the moving spring. The longitudinal section of the slide rail is arc-shaped, the longitudinal section of the slider is adapted to the cross-section of the slide rail, and the radius of the moving spring is equal to the radius of the arc.

[0008] The beneficial effects of adopting the above improvement scheme are as follows: When an earthquake occurs, the longitudinal support 21 drops as the top plate 11 drops, and the top of the inclined support 22 moves towards the longitudinal support 21. At this time, the slider slides along the slide rail towards the longitudinal support 21. One side of the slider is connected to the moving spring 33, and the moving spring 33 is compressed or stretched and deformed. When the top of the inclined support 22 moves towards the longitudinal support 21, the moving spring 33 exerts a force on the slider in the same or opposite direction to the movement direction of the slider. If the moving spring 33 is compressed, it exerts a force on the slider in the opposite direction to the movement direction of the slider, providing a damping effect, slowing down the moving speed of the inclined support 22, and preventing it from colliding with the longitudinal support 21, playing a buffering role. If the moving spring 33 is stretched, it exerts a force on the slider in the same direction as the movement direction of the slider, pulling the slider towards the longitudinal support 21, making it easier for the inclined support 22 to move towards the longitudinal support 21, ensuring that the inclined support 22 can adjust its position in time to provide effective support for the top plate 11, thereby improving the stability and seismic resistance of the entire seismic shockproof joint. Generally speaking, the presence of the moving spring 33 makes the movement of the inclined support 22 smoother, enhancing the adaptability and reliability of the joint under the action of an earthquake.

[0009] Furthermore, a plurality of protrusions are provided on the inner side surface of the slide rail, and depressions adapted to the protrusions are provided at positions corresponding to the protrusions on the outer surface of the slider.

[0010] The beneficial effect of adopting the above-mentioned improved solution is that the design of the protrusion and the depression can effectively prevent the oblique bracket 22 from moving away from the longitudinal bracket 21. When the depression of the slider 32 is away from the protrusion, the moving spring 33 will give the slider 32 a force in the direction of the longitudinal bracket 21, so that the oblique bracket 22 can be closer to the longitudinal bracket 21, providing better support for the top plate 11. This design can ensure that the oblique bracket 22 is close to the longitudinal bracket 21 in time when an earthquake occurs, enhance the support force for the top plate 11, and improve the stability and seismic performance of the entire earthquake-proof node.

[0011] Furthermore, the cross-sectional shape of the protrusion is a right triangle, and the right-angled side of the triangle faces the direction of the longitudinal support.

[0012] The beneficial effects of adopting the above-mentioned improved scheme are as follows: the cross section of the protrusion is a right-angled triangle with the right-angled side facing the longitudinal support. When an earthquake occurs, the top plate falls and drives the slider to slide along the slide rail. The triangle hypotenuse produces a precise reverse force on the slider, guiding the slider to move strictly in the predetermined direction, ensuring that the top of the oblique support moves stably toward the longitudinal support direction, and accurately providing upward support for the top plate. This shape design can also enhance the force performance of the slider and the slide rail under repeated earthquakes, avoid the slider from being skewed or stuck, and ensure the continuous effectiveness of the node energy consumption and stability effect.

[0013] Furthermore, the middle part of the oblique bracket is rotatably connected to the support plate through a rotating mechanism, and the rotating mechanism includes a guide cylinder and a guide shaft. The guide cylinder is a barrel-shaped structure, which is sleeved on the outer wall of the oblique bracket and is slidably connected to the oblique bracket. The side wall of the guide cylinder is rotatably connected to the support plate through the guide shaft, and the guide shaft is located on one side of the guide cylinder.

[0014] The beneficial effect of adopting the above-mentioned improved scheme is that when an earthquake occurs, the longitudinal bracket 21 moves downward with the top plate, and the bottom of the oblique bracket 22 slides inside the guide cylinder 41 and drives the guide cylinder 41 to rotate, changing the angle between it and the support plate. This design allows the oblique bracket 22 to flexibly adjust its position and angle when subjected to force to adapt to the complex deformation requirements under the action of an earthquake. At the same time, the cooperation between the guide shaft 42 and the guide cylinder 41 ensures the smoothness of the rotation, so that the oblique bracket 22 can smoothly transmit the force to the support plate, thereby enhancing the stability and seismic resistance of the entire node.

[0015] Furthermore, the guide shaft is a ball bearing sleeve, the inner sleeve is fixedly connected to the support plate, and the outer sleeve is fixedly connected to the guide cylinder.

[0016] The beneficial effects of adopting the above improvement scheme are as follows: The guiding shaft adopts a ball bearing sleeve design, with the inner sleeve fixed to the support plate and the outer sleeve fixed to the guiding cylinder, which greatly reduces the rotational friction force. During an earthquake, when the roof slab drops and the inclined support needs to quickly adjust its angle, the ball bearing sleeve can ensure rapid and smooth relative rotation between the inclined support and the support plate, making the node more sensitive to seismic forces, promptly adjusting the positions of various components to maintain structural stability, avoiding untimely force transmission and stress concentration caused by rotational hysteresis, and improving the seismic performance of the node.

[0017] Further, a slide rail is provided on the inner side wall of the guiding cylinder, and a slideway matching with the slide rail is provided on the outer side wall of the inclined support.

[0018] The beneficial effects of adopting the above improvement scheme are as follows: The cooperation between the slide rail on the inner side wall of the guiding cylinder and the slideway on the outer side wall of the inclined support enables the inclined support to slide within the guiding cylinder during an earthquake. The slide rail and the slideway accurately restrict the movement trajectory of the inclined support, preventing it from undergoing excessive deviation or skew under force. This ensures that the inclined support always remains in the correct position during the downward movement and rotation, stably providing support for the roof slab, avoiding uneven force transmission and node failure caused by position deviation, and enhancing the stability and reliability of the node under complex seismic forces.

[0019] Further, the included angle between the longitudinal support and the inclined support is 45 - 60°.

[0020] The beneficial effects of adopting the above improvement scheme are as follows: The included angle between the longitudinal support and the inclined support is 45 - 60°. Within this angle range, when the roof slab drops during an earthquake, the downward movement of the longitudinal support drives the bottom of the inclined support to move downward. The inclined support can not only provide effective lateral support for the longitudinal support but also reasonably transfer the force to the support plate and the side plate through its inclined angle. This angle design enables the forces on each component to be balanced, fully exerts the material strength, avoids excessive or insufficient forces caused by improper angles, improves the overall support efficiency and energy dissipation capacity of the node, and enhances the resistance of the building structure during an earthquake.

[0021] Further, the support plate is of a C-shaped structure, and the length of the bottom plate of the C-shape is greater than the length of the top plate.

[0022] The beneficial effects of adopting the above improvement scheme are as follows: The C-shaped structure of the support plate with the length of the bottom plate greater than the length of the top plate provides a wider support surface for the side plate, enhancing the lateral stability of the node. During an earthquake, when the roof slab drops and various components move, the longer bottom plate can better adapt to the deformation of the side plate, avoiding support disengagement or failure caused by the deformation of the side plate, continuously and stably participating in force transmission and dissipation, and improving the adaptability of the node to seismic deformation and the overall seismic performance.

[0023] Further, a reinforcing rib is provided in the middle of the support plate, and the top of the reinforcing rib is fixedly connected to the side plate.

[0024] The beneficial effects of adopting the above improvement scheme are as follows: The reinforcing rib in the middle of the support plate is fixedly connected to the side plate, significantly enhancing the strength of the support plate itself. In complex stress situations such as the top plate falling during an earthquake and the inclined support applying force to the support plate, it can prevent the support plate from being overly deformed or damaged, ensuring its integrity and the continuity of force transmission. The connection between the reinforcing rib and the side plate strengthens the integrity of the node, enabling the node to resist external forces as a tight whole during an earthquake and improving the stability and safety of the building structure.

[0025] Compared with the prior art, the beneficial effects of a building structure earthquake-proof node provided by the present invention are as follows: The fixed connections between the top plate and the cross beam, and between the side plate and the column construct a stable framework. During an earthquake, the longitudinal support follows the top plate and drops, driving the bottom of the inclined support to move downward and rotate relative to the side plate, and the top of the inclined support moves towards the longitudinal support to provide a supporting force to the top plate. The coordinated cooperation of the longitudinal support and the inclined support forms a force transmission and energy dissipation system, consuming earthquake energy, maintaining the stability of the node, and preventing the structure from being overly deformed or unstable. The design of the sliding mechanism and the rotating mechanism enables the inclined support and the longitudinal support to flexibly adjust their positions and angles to adapt to the earthquake deformation requirements and ensure smooth force transmission. At the same time, the optimized design of the structures of each component, such as the cooperation between the slide rail and the slider, the setting of the protrusions and depressions, and the use of the ball bearing sleeve, further improves the adaptability, reliability, and earthquake resistance of the node, enhancing the stability and safety of the building structure during an earthquake. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a side view schematic diagram of a building structure earthquake-proof node; Figure 2 It is a schematic diagram of a building structure earthquake-proof node; Figure 3 It is a cross-sectional view of a building structure earthquake-proof node; Figure 4 It is Figure 3 The enlarged view of A in Figure 5 It is a schematic diagram of the sliding mechanism of a building structure earthquake-proof node; In the drawings, the list of components represented by each reference numeral is as follows: 11. Top plate; 12. Side plate; 13. Support plate; 2. Support structure; 21. Longitudinal support; 22. Inclined support; 3. Sliding mechanism; 31. Slide rail; 32. Slider; 33. Moving spring; 4. Rotating mechanism; 41. Guide cylinder; 42. Guide shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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.

[0028] AsFigures 1 - 5 As shown in the figure, it is the first embodiment of a seismic node for a building structure provided by the present invention. In this embodiment, it includes a top plate 11, side plates 12 and a support plate 13. The top plate 11 is fixedly connected to the bottom of the cross beam, the side plates 12 are fixedly connected to the side walls of the columns, the top plate 11 is rotatably connected to the side plates 12, the support plate 13 is fixed to the side wall of the side plate 12 and is parallel to the top plate 11. The support plate 13 is elastically connected to the side plate 12 through a support structure 2; the support structure 2 includes a longitudinal bracket 21 and a plurality of inclined brackets 22. The top of the longitudinal bracket 21 is vertically arranged at the bottom of the top plate 11 and is rotatably connected to the top plate 11, and the bottom is rotatably connected to the inclined bracket 22. The top of the inclined bracket 22 is slidably connected to the top plate 11, and the bottom is rotatably connected to the longitudinal bracket 21. An opening is provided at the position of the side plate 12 corresponding to the inclined bracket 22, and the middle of the inclined bracket 22 is rotatably connected to the side wall of the opening of the side plate 12.

[0029] During an earthquake, the top plate 11 drops, squeezing the longitudinal bracket 21. Since the longitudinal bracket 21 is a rigid structure, the longitudinal bracket 21 follows the top plate 11 and drops. The bottom of the longitudinal bracket 21 moves downward, and the bottom of the inclined bracket 22 follows the longitudinal bracket 21 and moves downward, making a relative rotation with the side plate 12. The top of the inclined bracket 22 moves towards the longitudinal bracket 21, giving an upward force to the top plate 11 to support the top plate 11.

[0030] Among them, in the above technical solution, the top of the inclined bracket 22 is slidably connected to the top plate 11 through a sliding mechanism 3. The sliding mechanism 3 includes a slide rail 31, a slider 32 and a moving spring 33. The slide rail 31 is a long strip-shaped depression at the bottom of the top plate 11, and the slider 32 is embedded inside. The bottom of the slider 32 is rotatably connected to the inclined bracket 22. One side of the slider 32 is slidably connected to the slide rail 31 through the moving spring 33. The longitudinal section of the slide rail 31 is circular arc-shaped, the longitudinal section of the slider 32 is adapted to the cross section of the slide rail 31, and the radius of the moving spring 33 is equal to the radius of the arc.

[0031] When the longitudinal bracket 21 drops, the top of the inclined bracket 22 moves towards the longitudinal bracket 21. At this time, the moving spring 33 gives a force to the inclined bracket 22 to move towards the longitudinal bracket 21, making the inclined bracket 22 more capable of moving towards the longitudinal bracket 21.

[0032] Furthermore, in the above technical solution, a plurality of protrusions are provided on the inner side surface of the slide rail 31, and depressions adapted to the protrusions are provided at the positions corresponding to the protrusions on the outer surface of the slider 32.

[0033] Furthermore, in the above technical solution, the cross-sectional shape of the protrusion is a right triangle, and the right-angled side of the triangle faces the direction of the longitudinal bracket 21.

[0034] Further, in the above technical solution, the middle part of the inclined support 22 is rotatably connected to the support plate 13 through a rotating mechanism 4. The rotating mechanism 4 includes a guiding cylinder 41 and a guiding shaft 42. The guiding cylinder 41 is of a barrel-shaped structure, sleeved on the outer side wall of the inclined support 22 and slidably connected to the inclined support 22. The side wall of the guiding cylinder 41 is rotatably connected to the support plate 13 through the guiding shaft 42, and the guiding shaft 42 is located on one side of the guiding cylinder 41.

[0035] During an earthquake, the longitudinal support 21 moves downward, and the bottom of the inclined support 22 moves downward and slides inside the guiding cylinder 41, driving the guiding cylinder 41 to rotate and the angle to change.

[0036] Further, in the above technical solution, the guiding shaft 42 is a ball bearing sleeve, the inner sleeve is fixedly connected to the support plate 13, and the outer sleeve is fixedly connected to the guiding cylinder 41.

[0037] Further, in the above technical solution, a slide rail is provided on the inner side wall of the guiding cylinder 41, and a slideway matching the slide rail is provided on the outer side wall of the inclined support 22.

[0038] Further, in the above technical solution, the included angle between the longitudinal support 21 and the inclined support 22 is 45 - 60°.

[0039] Further, in the above technical solution, the support plate 13 is of a C-shaped structure, and the length of the bottom plate of the C-shape is greater than the length of the top plate.

[0040] Further, in the above technical solution, a reinforcing rib is provided in the middle of the support plate 13, and the top of the reinforcing rib is fixedly connected to the side plate 12.

[0041] The present invention provides a seismic joint for a building structure, including a top plate 11, side plates 12 and a support plate 13. The top plate 11 and the bottom of the cross beam are fixedly connected by high-strength bolts to ensure the firmness and reliability of the connection, which can withstand the large forces generated during an earthquake, and at the same time is convenient for construction and later maintenance and repair.

[0042] The side plates 12 and the side walls of the columns are also fixedly connected by high-strength bolts. The top plate 11 and the side plates 12 are rotatably connected through a rotating connector, and the rotating connector is a high-precision rotating bearing, which can ensure that the top plate 11 rotates smoothly and flexibly relative to the side plates 12 during an earthquake.

[0043] The support plate 13 is made of high-strength steel, fixed on the side wall of the side plate 12 and kept parallel to the top plate 11. The support plate 13 and the side plate 12 are connected by an elastic connector, and the elastic connector is a high-performance elastic rubber pad, which can provide good elastic deformation ability during an earthquake and effectively dissipate seismic energy.

[0044] The support structure 2 includes a longitudinal bracket 21 and a plurality of diagonal brackets 22. The top of the longitudinal bracket 21 is vertically arranged at the bottom of the top plate 11 and is rotatably connected to the top plate 11 through a rotating bearing. The bottom of the longitudinal bracket 21 is connected to the diagonal bracket 22 by a universal rotating connector, which can adapt to the force transmission and displacement changes in different directions.

[0045] The top of the diagonal bracket 22 is slidably connected to the top plate 11. The sliding mechanism 3 includes a slide rail 31, a slider 32 and a moving spring 33. The slide rail 31 is embedded at the bottom of the top plate 11. The slider 32 is installed in the slide rail 31, and the bottom of the slider 32 is connected to the diagonal bracket 22 by a universal rotating connector. One end of the moving spring 33 is fixed to the inner side of the slide rail 31, and the other end is connected to the slider 32, which can provide buffering and reset functions during an earthquake.

[0046] A plurality of protrusions are provided on the inner side surface of the slide rail 31, and depressions are provided on the outer surface of the slider 32 to cooperate with them. The cross-sectional shape of the protrusion is a right triangle, and the right-angled side of the triangle faces the direction of the longitudinal bracket 21, which can effectively limit the moving direction of the slider 32 and ensure that the diagonal bracket 22 moves stably towards the longitudinal bracket 21.

[0047] The middle part of the diagonal bracket 22 is rotatably connected to the support plate 13 through a rotating mechanism 4. The rotating mechanism 4 includes a guide cylinder 41 and a guide shaft 42. The guide cylinder 41 is sleeved on the outer side wall of the diagonal bracket 22 and is slidably connected to the diagonal bracket 22. The side wall of the guide cylinder 41 is rotatably connected to the support plate 13 through a ball bearing sleeve. The inner sleeve of the ball bearing sleeve is fixed to the support plate 13, and the outer sleeve is fixed to the guide cylinder 41, which can reduce the rotational friction and ensure smooth rotation.

[0048] A slide rail is provided on the inner side wall of the guide cylinder 41, and a slideway is provided on the outer side wall of the diagonal bracket 22 to cooperate with it, which can constrain the movement trajectory of the diagonal bracket 22 in the guide cylinder 41 and ensure its stable sliding.

[0049] The included angle between the longitudinal bracket 21 and the diagonal bracket 22 is designed to be 45° - 60°. Within this included angle range, the supporting effect of the diagonal bracket 22 on the longitudinal bracket 21 can be fully exerted, and at the same time, sufficient space is ensured for the diagonal bracket 22 to displace and rotate to adapt to the deformation requirements during an earthquake.

[0050] The support plate 13 adopts a C-shaped structure. The length of the bottom plate of the C shape is greater than the length of the top plate, which can provide a larger supporting area for the side plate 12 and improve the lateral stability of the joint. Reinforcing ribs are provided in the middle of the support plate 13. The top of the reinforcing ribs is fixedly connected to the side plate 12 by welding, which can enhance the bending and shear strength of the support plate 13 and ensure that the support plate 13 will not deform or be damaged under the action of an earthquake, guaranteeing the stability and reliability of the entire joint.

[0051] The present invention provides a seismic isolation joint for a building structure, which includes a top plate 11, a side plate 12 and a support plate 13. The top plate 11 is fixedly connected to the bottom of the cross beam by welding, ensuring that the connection has high strength and stiffness, and can effectively resist the huge forces generated during an earthquake, and is suitable for building structures with extremely high strength requirements.

[0052] The side plate 12 is also fixedly connected to the side wall of the column by welding. The top plate 11 and the side plate 12 are rotationally connected through a special rotational connection mechanism, which is a high-precision universal joint and can achieve flexible rotation in multiple directions, ensuring that the top plate 11 can adapt to various complex deformation requirements relative to the side plate 12 during an earthquake.

[0053] The support plate 13 is made of high-strength aluminum alloy material, fixed on the side wall of the side plate 12, and is parallel to the top plate 11. The support plate 13 and the side plate 12 are connected by a special elastic connection mechanism, which is a high-damping rubber spring and can provide good elastic deformation ability and high damping characteristics during an earthquake, effectively dissipating seismic energy.

[0054] The support structure 2 includes a longitudinal bracket 21 and a plurality of inclined brackets 22. The top of the longitudinal bracket 21 is vertically arranged at the bottom of the top plate 11 and is rotationally connected to the top plate 11 through a universal joint. The bottom of the longitudinal bracket 21 is connected to the inclined bracket 22 by a spherical rotating connector, which can adapt to force transmission in different directions and complex displacement changes.

[0055] The top of the inclined bracket 22 is slidably connected to the top plate 11. The sliding mechanism 3 includes a slide rail 31, a slider 32 and a moving spring 33. The slide rail 31 is embedded at the bottom of the top plate 11, and a guide groove is provided inside the slide rail 31. The slider 32 is installed in the slide rail 31, and the bottom of the slider 32 is connected to the inclined bracket 22 by a spherical rotating connector. The moving spring 33 is a high-strength helical spring, one end of which is fixed to the inner side of the slide rail 31 and the other end is connected to the slider 32, and can provide strong buffering and reset functions during an earthquake.

[0056] A plurality of protrusions are provided on the inner side surface of the slide rail 31, and depressions are provided on the outer surface of the slider 32 for cooperation. The cross-sectional shape of the protrusion is a right triangle, and the right-angled side of the triangle faces the direction of the longitudinal bracket 21, which can more effectively limit the moving direction of the slider 32 and ensure that the inclined bracket 22 can move stably towards the longitudinal bracket 21 under the action of an earthquake.

[0057] The middle part of the inclined support 22 is rotationally connected to the support plate 13 through a rotating mechanism 4. The rotating mechanism 4 includes a guide cylinder 41 and a guide shaft 42. The guide cylinder 41 is sleeved on the outer side wall of the inclined support 22 and is in high-precision sliding connection with the inclined support 22. The side wall of the guide cylinder 41 is rotationally connected to the support plate 13 through a ball bearing sleeve. The inner sleeve of the ball bearing sleeve is fixed to the support plate 13, and the outer sleeve is fixed to the guide cylinder 41. The ball bearing sleeve is made of a special low-friction material, which can further reduce the rotational friction force and ensure smoother rotation.

[0058] A slide rail is provided on the inner side wall of the guide cylinder 41, and a slideway matching with it is provided on the outer side wall of the inclined support 22. A self-lubricating device is provided between the slide rail and the slideway, which can ensure that the sliding performance is not affected during long-term use.

[0059] The included angle between the longitudinal support 21 and the inclined support 22 is designed to be 45°-60°. Within this included angle range, the supporting effect of the inclined support 22 on the longitudinal support 21 can be fully exerted, and at the same time, enough space is ensured for the inclined support 22 to displace and rotate to meet the deformation requirements during an earthquake.

[0060] The support plate 13 adopts a C-shaped structure. The length of the bottom plate of the C shape is greater than the length of the top plate, which can provide a larger supporting area for the side plate 12 and improve the lateral stability of the node. A reinforcing rib is provided in the middle of the support plate 13. The top of the reinforcing rib is fixedly connected to the side plate 12 by high-strength bolts. This can enhance the bending and shear strength of the support plate 13, and at the same time, it is convenient for installation and disassembly, facilitating inspection and maintenance after an earthquake, and ensuring the stability and reliability of the entire node under earthquake action. Specifically, the principle of the present invention is: when an earthquake occurs, the earthquake energy is dissipated through the coordinated movement of each component of the earthquake-proof node of the building structure. The top plate and the cross beam, and the side plate and the column construct a stable framework. During an earthquake, the top plate drops, the longitudinal support follows the top plate and drives the bottom of the inclined support to move downward, and the inclined support rotates relative to the side plate, and its top moves towards the longitudinal support. With the buffering and resetting effects of the moving spring, as well as the cooperation of the slide rail and the slider, and the protrusion and the depression, the inclined support moves smoothly and provides support for the top plate. At the same time, the middle part of the inclined support is connected to the support plate through a rotating mechanism. When the earthquake force acts, the inclined support slides in the guide cylinder and drives the guide cylinder to rotate, changing the angle to meet the deformation requirements. The ball bearing sleeve reduces the friction force to ensure smooth rotation. The C-shaped structure and the reinforcing rib of the support plate enhance the strength and stability of the node.

[0061] Fix the top plate to the bottom of the cross beam to ensure a firm and reliable connection, and welding or high-strength bolt connection methods can be adopted. Fix the side plate to the side wall of the column, also using welding or high-strength bolt connection to ensure the stability of the side plate on the column. Install the longitudinal bracket so that its top is vertically arranged at the bottom of the top plate and is rotatably connected to the top plate. Rotating bearings and other components can be used to achieve the rotational connection. Rotatably connect the bottom of the inclined bracket to the bottom of the longitudinal bracket. At the same time, install a slide rail at the bottom of the top plate, embed the slider into the slide rail, and then rotatably connect the top of the inclined bracket to the bottom of the slider. Install the support plate so that it is fixed on the side wall of the side plate and is parallel to the top plate. Adjust the position of the support plate so that it is elastically connected to the side plate through a support structure. Install a guide cylinder in the middle of the inclined bracket and rotatably connect it to the support plate through a guide shaft. Ensure the installation accuracy of the guide shaft to make the rotation flexible. Check the tightness and flexibility of each connection part to ensure that the entire anti-seismic node meets the design requirements after installation.

[0062] As mentioned above, the above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention.

Claims

1. An earthquake-proof joint for a building structure, characterized in that, It includes a top plate (11), side plates (12) and a support plate (13). The top plate (11) is fixedly connected to the bottom of the cross beam, the side plates (12) are fixedly connected to the side walls of the columns, the top plate (11) is rotatably connected to the side plates (12), the support plate (13) is fixed to the side wall of the side plate (12) and is parallel to the top plate (11), and the support plate (13) is elastically connected to the side plate (12) through a support structure (2); the support structure (2) includes a longitudinal bracket (21) and a plurality of inclined brackets (22). The top of the longitudinal bracket (21) is vertically arranged at the bottom of the top plate (11) and is rotatably connected to the top plate (11), the bottom is rotatably connected to the inclined bracket (22), the top of the inclined bracket (22) is slidably connected to the top plate (11), the bottom is rotatably connected to the longitudinal bracket (21), and the side plate (12) is provided with an opening at the position corresponding to the inclined bracket (22), and the middle of the inclined bracket (22) is rotatably connected to the side wall of the opening of the side plate (12).

2. The aseismic joint of a building structure according to claim 1, characterized in that, The top of the inclined bracket (22) is slidably connected to the top plate (11) through a sliding mechanism (3). The sliding mechanism (3) includes a slide rail (31), a slider (32) and a moving spring (33). The slide rail (31) is a long strip-shaped depression at the bottom of the top plate (11), and the slider (32) is embedded inside. The bottom of the slider (32) is rotatably connected to the inclined bracket (22), and one side of the slider (32) is slidably connected to the slide rail (31) through the moving spring (33). The longitudinal section of the slide rail (31) is arc-shaped, the longitudinal section of the slider (32) is adapted to the section of the slide rail (31), and the radius of the moving spring (33) is equal to the radius of the arc.

3. The aseismic joint of a building structure according to claim 2, characterized in that, A plurality of protrusions are provided on the inner side surface of the slide rail (31), and depressions adapted to the protrusions are provided at the positions corresponding to the protrusions on the outer surface of the slider (32).

4. The aseismic joint of a building structure according to claim 3, characterized in that The cross-sectional shape of the protrusion is a right triangle, and the right-angle side of the triangle faces the direction of the longitudinal bracket (21).

5. The aseismic joint of a building structure according to claim 4, characterized in that, The middle of the inclined bracket (22) is rotatably connected to the support plate (13) through a rotating mechanism (4). The rotating mechanism (4) includes a guide cylinder (41) and a guide shaft (42). The guide cylinder (41) is a barrel-shaped structure, sleeved on the outer side wall of the inclined bracket (22) and is slidably connected to the inclined bracket (22). The side wall of the guide cylinder (41) is rotatably connected to the support plate (13) through the guide shaft (42), and the guide shaft (42) is located on one side of the guide cylinder (41).

6. The aseismic joint of a building structure according to claim 5, characterized in that, The guide shaft (42) is a ball bearing sleeve, the inner sleeve is fixedly connected to the support plate (13), and the outer sleeve is fixedly connected to the guide cylinder (41).

7. The aseismic joint of a building structure according to claim 6, characterized in that, A slide rail is provided on the inner side wall of the guide cylinder (41), and a slideway matched with the slide rail is provided on the outer side wall of the inclined bracket (22).

8. The aseismic joint of a building structure according to claim 7, characterized in that, The included angle between the longitudinal bracket (21) and the inclined bracket (22) is 45 - 60°.

9. The aseismic joint of a building structure according to claim 8, characterized in that, The support plate (13) is a C-shaped structure, and the length of the bottom plate of the C shape is greater than the length of the top plate.

10. The aseismic joint of a building structure according to claim 9, wherein, Reinforcing ribs are provided in the middle of the support plate (13), and the top of the reinforcing ribs is fixedly connected to the side plate (12).

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