Anti-seismic reinforcing device for historic building with brick-wood framework
By designing a seismic reinforcement device containing fixed plates, steel columns, movable vertical poles and tightening devices, the problems of column foot slipping and node pulling in high-intensity earthquakes of wooden structures are solved, and the ancients are achieved The reversible restoration and landscape protection of the building are adapted to earthquakes of different levels, ensuring safety and effectiveness.
Patent Information
- Application Number
- CN202411675946.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2024-12-27
AI Technical Summary
The existing seismic reinforcement technology has poor protection effect on wooden frame ancient buildings, especially in high-intensity earthquakes, which can easily cause column foot slips and node tenon extraction. Conventional reinforcement methods will destroy the appearance and charm of ancient buildings, and cannot adapt to local conditions. Earthquakes of different magnitudes.
Design a seismic reinforcement device for ancient brick and wood frames, including buried fixed plates, fixed steel columns, movable vertical poles, curved pads and tightening devices, and use limiting springs, energy-consuming springs and carbon nanotube resin spraying devices Strengthen the connection strength, adjust the structural rigidity in different earthquake situations through movable vertical poles and tightening devices, protect the appearance of ancient buildings and achieve reversible restoration.
The original appearance of ancient buildings is protected to the greatest extent, adapt to earthquake conditions of different levels, ensures safety and excellent results, and achieves earthquake resistance reinforcement according to local conditions, avoids column foot slips and node pulling, and enhances the overall stability of the structure.
Smart Images
Figure CN119195529A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of earthquake-resistant reinforcement, and more specifically to an earthquake-resistant reinforcement device for an ancient brick-wood frame building. Background Art
[0002] The main impact of earthquake damage on ancient wooden buildings is the slippage of column bases and the pulling out of joints, which is caused by the mechanical properties of wood itself and the limitations of traditional connection methods. In areas with high-intensity earthquakes, the situation is even more serious. Due to the heavy weight of surrounding structures such as brick walls and the high level of energy released by earthquakes, the mortise and tenon joints of wooden frames often break due to the huge stress, and the purlins fall off due to loss of support, and even the entire frame tilts or even collapses.
[0003] Although existing technologies provide certain solutions to the problem of seismic reinforcement of ancient wooden frame buildings, there are still many shortcomings. For example, although the use of steel skeleton reinforcement can significantly improve the overall stability of the structure, the introduction of steel is significantly different from the original wooden materials of the ancient buildings in terms of visual and texture, which seriously damages the original style and charm of the ancient buildings. Although chemical grouting technology can fill structural cracks and strengthen node connections, the residual chemical substances may cause corrosion to ancient building materials and affect long-term preservation. The iron reinforcement method also faces the problem of style damage, and the reinforcement effect is often too rigid, which is not conducive to the flexible energy consumption mechanism of ancient buildings in earthquakes. The original style is destroyed after repair, which is irreversible. It is impossible to adapt to local conditions for earthquakes of different levels. Summary of the invention
[0004] In order to overcome the shortcomings of the above-mentioned prior art, the present invention provides a brick-wood frame ancient building earthquake-resistant reinforcement device. The reinforcement device can protect the original style of the ancient building as much as possible, with minimal damage to the original style, and the ancient building can be reversibly repaired. It can be adapted to different levels of earthquakes and adapt to different levels of earthquake conditions, with good safety and excellent effect.
[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: A device for seismic reinforcement of an ancient building with a brick-wood frame is provided between the ancient building's wood frame and a brick wall, and comprises an embedded fixing plate, a fixed steel column, a movable vertical pole, an arc-shaped pad and a tightening device, wherein the fixed steel column is provided inside the ancient building's wood column, the embedded fixing plate is fixedly provided at the bottom of the fixed steel column, the arc-shaped pad is provided on the ancient building's wood column, a plurality of limit springs are provided between the fixed steel column and the arc-shaped pad, the limit springs are evenly arranged at different heights in the vertical direction, the movable vertical pole is provided on a side of the fixed steel column away from the ancient building's wood column, the movable vertical pole is connected to the fixed steel column through a plurality of groups of energy-absorbing springs, the movable vertical pole is connected to the ancient building's brick wall, and the tightening device is provided on a side surface of the fixed steel column close to the movable vertical pole.
[0006] The embedded fixing plate includes a steel plate and anchor rods. The bottom of the fixed steel column is fixedly connected to the steel plate. The anchor rods are arranged at the bottom of the steel plate. Eight groups of anchor rods are arranged.
[0007] The top and the bottom plate of the movable upright pole are both provided with polytetrafluoroethylene sliding plates, and a side of the movable upright pole close to the brick wall of the ancient building is provided with a plurality of tooth joint blocks in the vertical direction.
[0008] A central rod is arranged inside the energy-absorbing spring. The central rod is arranged horizontally, and two sides of the central rod are respectively fixedly connected to the fixed steel column and the movable vertical rod.
[0009] A carbon nanotube resin spraying device is arranged at the top end of the fixed steel column, and the carbon nanotube resin spraying device is arranged toward the bracket node of the ancient building.
[0010] The tightening device includes a motor, a bracket, a reel, a winding drum, a steel cable and a guide wheel. The motor is arranged on the fixed steel column through the bracket. The reel and the winding drum are both connected to the motor output shaft. The guide wheel is arranged between the wooden frame of the ancient building and the brick wall of the ancient building. Both ends of the steel cable are wound around the winding drum, and the steel cable is correspondingly arranged on the guide wheel.
[0011] The reel is provided with a spiral track, and the movable upright rod is provided with a positioning card corresponding to the position of the reel, and the positioning card is engaged with the spiral track on the reel.
[0012] The tightening device is provided in two groups at different height positions of the fixed steel column.
[0013] The fixed steel column is connected to the wooden pile of the ancient building through a hoop.
[0014] Compared with the prior art, the present invention has the following beneficial effects: The embedded fixing plate can stabilize the fixed steel column on the ground, and the limit spring and arc pad can strengthen the connection between the fixed steel column and the wooden structure pile of the ancient building, ensuring the structural strength of the wooden structure pile of the ancient building. In case of earthquake fortification and rare earthquake, the carbon nanotube resin spraying device is activated to spray the resin coating on the bracket nodes to increase the node strength and fill the gaps, so as to achieve the effect of strengthening the stability of the wooden frame; when the earthquake intensity is large, the tightening device can enhance the overall rigidity of the wooden structure of the ancient building through steel cables, and at the same time control the movement of the movable pole through the drum, actively self-destruct the brick wall surface, and prevent the wooden structure from being affected by the rotating wall and then destroyed, achieving the effect of "sacrificing the car to save the driver"; the hoop is made of carbon fiber reinforced composite material, which is equivalent to the role of stirrups and resists the shear force of the wood node The device can protect the original appearance of ancient buildings to the greatest extent possible, with minimal damage to the original appearance. The ancient buildings can be reversibly repaired, and it can be adapted to local conditions and different levels of earthquakes. It has good safety and excellent results. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the splitting of the present invention; Figure 3 It is a schematic diagram of the limit spring of the present invention; Figure 4 It is a schematic diagram of the energy dissipation spring of the present invention; Figure 5 It is a schematic diagram of the tightening device of the present invention; Figure 6 It is a schematic diagram of the reel of the present invention; Figure 7 This is a schematic diagram of the clamp of the present invention; In the figure: 1 is an embedded fixing plate, 2 is a fixed steel column, 3 is a movable upright pole, 31 is a polytetrafluoroethylene slide plate, 32 is a positioning card, 33 is a tooth joint block, 4 is a limit spring, 5 is an energy-absorbing spring, 51 is a center rod, 6 is a carbon nanotube resin spraying device, 7 is an arc pad, 8 is a tightening device, 81 is a motor, 82 is a bracket, 83 is a reel, 84 is a winding reel, 85 is a steel cable, 86 is a guide wheel, and 9 is a hoop. DETAILED DESCRIPTION
[0016] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.
[0017] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from the description. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.
[0018] like Figures 1 to 7 As shown, a brick-wood frame ancient building seismic reinforcement device is arranged between the ancient building wood frame and the brick wall, comprising an embedded fixed plate 1, a fixed steel column 2, a movable upright pole 3, an arc pad 7 and a tightening device 8, the fixed steel column 2 is arranged inside the ancient building wood column, the embedded fixed plate 1 is fixedly arranged at the bottom of the fixed steel column 2, the arc pad 7 is arranged on the ancient building wood column, a plurality of limit springs 4 are arranged between the fixed steel column 2 and the arc pad 7, the limit springs 4 are evenly arranged at different heights in the vertical direction, the movable upright pole 3 is arranged on the side of the fixed steel column 2 away from the ancient building wood column, the movable upright pole 3 is connected to the fixed steel column 2 through a plurality of groups of energy-consuming springs 5, the movable upright pole 3 is connected to the ancient building brick wall, and the tightening device 8 is arranged on a side surface of the fixed steel column 2 close to the movable upright pole 3. It ensures that the ancient building wood column consumes seismic energy and limits the excessive displacement of the wood column to avoid the collapse of the brick-wood frame. The arc pad 7 prevents the wood column from being partially damaged due to excessive concentrated force.
[0019] In the event of frequent earthquakes, the reinforcement device simultaneously stabilizes and strengthens the wooden frame and brick walls of the ancient building; In the case of earthquakes of the design intensity, the reinforcement device stabilizes and reinforces the wooden frame of the ancient building, and the reinforcement device is disconnected from the brick wall; In the predicted rare earthquake situation, the reinforcement device will only stabilize and reinforce the wooden frame of the ancient building. The reinforcement device will self-destruct the wall, reduce the deadweight of the ancient building, and reduce the absorption of earthquake energy.
[0020] Preferably, the embedded fixing plate 1 includes a steel plate 11 and anchor rods 12. The bottom of the fixed steel column 2 is fixedly connected to the steel plate 11. The anchor rods 12 are arranged at the bottom of the steel plate 11. Eight groups of anchor rods 12 are arranged.
[0021] Preferably, the top and bottom plates of the movable upright pole 3 are both provided with polytetrafluoroethylene slide plates 31, and the side of the movable upright pole 3 close to the brick wall of the ancient building is provided with a plurality of tooth joint blocks 33 in the vertical direction. The integral connection between the movable upright pole 3 and the wall is increased.
[0022] Preferably, a central rod 51 is provided in the energy-absorbing spring 5, the central rod 51 is arranged horizontally, and the two sides of the central rod 51 are respectively fixedly connected to the fixed steel column 2 and the movable vertical rod 3. When a fortification earthquake or a rare earthquake is detected, the energy allocated by the structure to the movable vertical rod 3 and the central rod 51 in the energy-absorbing spring 5 is greater than the torsional moment, triggering the twist-off mechanism, and the central rod 51 and the fixed steel column 2 are immediately twisted off and disconnected, so as to avoid the overall stability of the wooden frame being dragged down due to too much earthquake energy absorbed by the brick wall.
[0023] Preferably, a carbon nanotube resin spraying device 6 is provided at the top of the fixed steel column 2, and the carbon nanotube resin spraying device 6 is arranged toward the bracket nodes of the ancient building. In case of a fortified earthquake or a rare earthquake, the carbon nanotube resin spraying device 6 is started to spray the resin coating on the bracket nodes, thereby increasing the node strength and filling the gaps, thereby achieving the effect of strengthening the stability of the wooden frame.
[0024] Preferably, the tightening device 8 comprises a motor 81, a bracket 82, a reel 83, a winding drum 84, a steel cable 85 and a guide wheel 86. The motor 81 is arranged on the fixed steel column 2 through the bracket 82. The reel 83 and the winding drum 84 are both connected to the output shaft of the motor 81. The guide wheel 86 is arranged between the wooden frame of the ancient building and the brick wall of the ancient building. Both ends of the steel cable 85 are wound around the winding drum, and the steel cable 85 is correspondingly arranged on the guide wheel 86. The guide wheel 86 is arranged between the wooden frame and the wall to reduce damage to the style and appearance of the ancient building.
[0025] When the earthquake is detected, the tightening device 8 is started, and the motor 81 drives the reel 83 and the winding drum 84 to rotate, tightening the steel cable 85. The entire wooden frame ancient building earthquake-resistant reinforcement device is interconnected and tightened, and is firmly fixed to the ground to resist severe damage at high earthquake levels. Preferably, a spiral track is provided on the reel 83, and a positioning card 32 is provided on the movable upright pole 3 at a position corresponding to the reel 83, and the positioning card 32 is engaged with the spiral track on the reel 83. The purpose of driving the movable upright pole 3 to slide inside and outside is achieved when the reel 83 rotates; polytetrafluoroethylene slide plates 31 are laid on the upper and lower ends of the movable upright pole 3 to increase the sliding property of the movable upright pole 3 on the ground.
[0026] Preferably, two sets of tightening devices 8 are arranged at different heights of the fixed steel column 2. The tightening devices 8 are arranged at the upper and lower ends of the wooden column of the brick-wood frame to respectively maintain the integrity of the bracket nodes and the column foot nodes under earthquake action.
[0027] Preferably, the fixed steel column 2 is connected to the ancient building wood pile through a hoop 9. Two groups of hoops 9 are provided, which are respectively provided near the top and bottom of the fixed steel column 2. The hoops 9 are made of carbon fiber reinforced composite materials, which are equivalent to the role of stirrups to resist the shear force of the wood node.
[0028] In the case of a rare earthquake, the central rod 51 is disconnected and separated from the fixed steel column 2 and the wooden frame structure; at the same time, under the rotation of the reel 83 with a spiral track on the surface, the brick wall surface moves outward and self-destructs; the movable upright rod 3 is not on the same plane as the fixed steel column 2 and the wooden frame structure, and the device fully protects the stability of the wooden frame, achieving the effect of "losing the car to save the driver" Only the preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention, and various changes should be included in the protection scope of the present invention.
Claims
1. A brick-wood frame ancient building seismic reinforcement device, which is arranged between the ancient building wood frame and the brick wall, and is characterized by: The invention comprises an embedded fixing plate (1), a fixed steel column (2), a movable vertical rod (3), an arc-shaped pad (7) and a tightening device (8), wherein the fixed steel column (2) is arranged on the inner side of the wooden column of the ancient building, the embedded fixing plate (1) is fixedly arranged at the bottom of the fixed steel column (2), the arc-shaped pad (7) is arranged on the wooden column of the ancient building, a plurality of limit springs (4) are arranged between the fixed steel column (2) and the arc-shaped pad (7), the limit springs (4) are evenly arranged at different heights in the vertical direction, the movable vertical rod (3) is arranged on a side of the fixed steel column (2) away from the wooden column of the ancient building, the movable vertical rod (3) is connected to the fixed steel column (2) through a plurality of groups of energy-absorbing springs (5), the movable vertical rod (3) is connected to the brick wall of the ancient building, and the tightening device (8) is arranged on a side surface of the fixed steel column (2) close to the movable vertical rod (3).
2. The device for seismic reinforcement of ancient brick-wood frame buildings according to claim 1, characterized in that: The embedded fixing plate (1) comprises a steel plate (11) and anchor rods (12); the bottom of the fixing steel column (2) is fixedly connected to the steel plate (11); the anchor rods (12) are arranged at the bottom of the steel plate (11); and eight groups of the anchor rods (12) are arranged.
3. The device for seismic reinforcement of ancient brick-wood frame buildings according to claim 1, characterized in that: The top and bottom plate of the movable upright pole (3) are both provided with polytetrafluoroethylene sliding plates (31), and a plurality of tooth joint blocks (33) are provided in the vertical direction on one side of the movable upright pole (3) close to the brick wall of the ancient building.
4. The device for seismic reinforcement of ancient brick-wood frame buildings according to claim 1, characterized in that: A central rod (51) is arranged inside the energy-absorbing spring (5). The central rod (51) is arranged horizontally, and two sides of the central rod (51) are respectively fixedly connected to the fixed steel column (2) and the movable vertical rod (3).
5. The device for seismic reinforcement of ancient brick-wood frame buildings according to claim 1, characterized in that: A carbon nanotube resin spraying device (6) is provided at the top end of the fixed steel column (2), and the carbon nanotube resin spraying device (6) is arranged toward the bracket node of the ancient building.
6. The device for seismic reinforcement of ancient brick-wood frame buildings according to claim 1, characterized in that: The tightening device (8) comprises a motor (81), a bracket (82), a reel (83), a winding drum (84), a steel cable (85) and a guide wheel (86); the motor (81) is arranged on the fixed steel column (2) via the bracket (82); the reel (83) and the winding drum (84) are both connected to the output shaft of the motor (81); the guide wheel (86) is arranged between the wooden frame of the ancient building and the brick wall of the ancient building; two ends of the steel cable (85) are wound around the winding drum, and the steel cable (85) is correspondingly arranged on the guide wheel (86).
7. The device for seismic reinforcement of ancient brick-wood frame buildings according to claim 6, characterized in that: The reel (83) is provided with a spiral track, and the movable upright rod (3) is provided with a positioning card (32) at a position corresponding to the reel (83), and the positioning card (32) is engaged with the spiral track () on the reel (83).
8. The device for seismic reinforcement of ancient brick-wood frame buildings according to claim 6, characterized in that: The tightening device (8) is provided in two groups at different height positions on the fixed steel column (2).
9. The device for seismic reinforcement of ancient brick-wood frame buildings according to claim 1, characterized in that: The fixed steel column (2) is connected to the wooden pile of the ancient building via a hoop (9).