Building seismic isolation device and method based on principle of electro-magnetic generation

Abstract

The application discloses a building shock insulation device and method based on the principle of electromagnetism, and belongs to the technical field of building shock absorption. The building shock insulation device based on the principle of electromagnetism divides a high-rise building into at least two sections in the horizontal direction, and comprises a section A building at the bottom and a section B building at the upper part. A magnetic attraction layer is arranged between the section A building and the section B building. The magnetic attraction layer generates magnetic attraction, so that the section B building moves appropriately through the magnetic attraction when an earthquake occurs, thereby absorbing and dissipating the earthquake energy. The application solves the contradiction between reducing the self-weight of the building and increasing the heavy lateral resisting member, and reduces the resonance of the building. The application divides the building into sections, and arranges the magnetic attraction layer at the connecting part, thereby solving the contradiction between reducing the self-weight of the building to reduce the earthquake force and increasing the heavy lateral resisting member to increase the structural stiffness to resist the horizontal earthquake action to a certain extent.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of building shock absorption technology, in particular to a building shock absorption device and method based on the principle of electromagnetism. BACKGROUND

[0002] Buildings are mainly damaged by the transverse waves of earthquakes, but in the existing structural design, most of the structures resist the force of earthquakes to offset the action of earthquakes. Such structural design needs to have a large stiffness of the structure (the most common method to increase the stiffness is to increase the lateral resisting member, which is mostly a shear wall and a cylinder structure, and the self-weight of the member is large); on the other hand, it is necessary to reduce the self-weight of the building to achieve the purpose of reducing the action of earthquakes, which is a common contradiction in structural design. At the same time, the building often resonates with the action of earthquakes during the earthquake process, which increases the damage of the building by the earthquake. SUMMARY

[0003] The purpose of the present application is to provide a building shock absorption device and method based on the principle of electromagnetism, which solves the contradiction between the need to reduce the self-weight of the building to reduce the action of earthquakes and the need to increase the heavy lateral resisting member to increase the stiffness of the structure to resist the horizontal action of earthquakes, and solves the problem of the resonance of the building and the "whiplash effect" of the building caused by the earthquake damage to the building, and solves the problems raised in the above background technology.

[0004] To achieve the above purpose, the present application provides the following technical scheme:

[0005] A building shock absorption device based on the principle of electromagnetism, comprising a segment A building at the bottom and a segment B building at the upper part, a magnetic attraction layer is arranged between the segment A building and the segment B building, the magnetic attraction layer comprises a first magnetic force layer and a second magnetic force layer, the first magnetic force layer is arranged at the top of the segment A building, the second magnetic force layer is arranged at the bottom of the segment B building, and an electromagnetism device is arranged in the first magnetic force layer and the second magnetic force layer;

[0006] The bottom of the segment B building is provided with at least four sliding supports, the top of the segment A building is provided with connecting grooves matched with the sliding supports, the sliding supports are correspondingly inserted into the connecting grooves, at least 8 dampers are horizontally arranged in each connecting groove, the dampers are arranged around the four sides of the sliding supports, one end of the damper is installed on the side wall of the connecting groove, and the other end is installed on the side wall of the sliding support;

[0007] The upper part of the segment B building is provided with a steel structure connecting layer, and a steel structure support is obliquely arranged between the outer edge of the steel structure connecting layer and the ground.

[0008] Preferably, the electromagnetism generating device comprises an alternating current power supply, a bridge rectifier, a capacitor, a winding coil a and a winding coil b, the winding coil a and the winding coil b are arranged in the first magnetic force layer and the second magnetic force layer respectively, and the alternating current power supply, the bridge rectifier, the capacitor, the winding coil a and the winding coil b form a current loop.

[0009] Preferably, the electromagnetism generating device is matched with a control unit.

[0010] Preferably, the A section building adopts a shear wall structure or a cylinder structure, and the B section building adopts a steel structure.

[0011] Preferably, a conversion layer is arranged at the bottom of the B section building.

[0012] A building seismic isolation method based on the principle of electromagnetism, which is realized based on a building seismic isolation device based on the principle of electromagnetism, and comprises the following steps:

[0013] Step one, when the earthquake early warning system detects impending seismic activity, start the control unit;

[0014] Step two, ensure stable supply of alternating current power supply, and gradually activate the bridge rectifier to convert alternating current into direct current;

[0015] Step three, monitor and manage the charging process of the capacitor, and accurately adjust the current supplied to the winding coil a and the winding coil b, so that magnetic attraction is generated between the first magnetic force layer and the second magnetic force layer, so that the B section building moves appropriately through the magnetic attraction when the earthquake occurs, thereby absorbing and dissipating the seismic energy, and the energy generated by the displacement of the B section building is consumed through the damper when the B section building moves;

[0016] Step four, adjust the magnetic field strength according to the relative displacement state between the A section building and the B section building;

[0017] Step five, when the seismic activity weakens, gradually reduce the magnetic field strength until the shutdown state, and perform the final safety power-off check.

[0018] Compared with the prior art, the building seismic isolation method based on the principle of electromagnetism has the following beneficial effects:

[0019] 1. The building seismic isolation method based on the principle of electromagnetism divides the high-rise building into two sections in the horizontal direction, uses a lighter steel structure as the main structure of the B section building, connects the upper and lower two parts through the magnetic attraction generated by the electromagnetism generating device, so that the A section building can adopt a simple shear wall or cylinder structure, and the B section building uses a steel structure to reduce the self weight, thereby reducing the overall self weight of the building, reducing the influence of the seismic force, reducing the gravity center of the A section building, reducing the seismic force, and the B section building below has electromagnetic attraction from the A section building, which can offset part of the seismic force, and the damping purpose is achieved.

[0020] 2、The present application sets up the electric magnetic device between the A section building and the B section building, activates the device before the earthquake, and makes the two section buildings produce certain magnetic attraction. This design can simulate the role of damper in the earthquake process, avoids the resonance between the building and the seismic wave, and has positive effect on the mitigation of the whip effect, that is, the upper structure will not be damaged due to excessive shaking.

[0021] 3、The present application sets up the first magnetic force layer 31 and the second magnetic force layer 32 to produce magnetic attraction therebetween, so that the B section building moves appropriately through the magnetic attraction when the earthquake occurs, thereby absorbing and dissipating the seismic energy. When the B section building moves, the damper consumes the energy generated due to displacement, and the cooperation of the sliding support and the damper can effectively reduce the resonance effect of the building in the earthquake process, and further enhances the seismic performance. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is the overall structure of the present application;

[0023] Figure 2 is the magnetic attraction layer of the present application;

[0024] Figure 3 is the top view of the connection relationship between the damper and the sliding support of the present application;

[0025] Figure 4 is the longitudinal sectional view of the damper and the sliding support of the present application;

[0026] Figure 5 is the schematic diagram of the electric magnetic device of the present application.

[0027] In the figure: 1, A section building; 2, B section building; 3, magnetic attraction layer; 31, first magnetic force layer; 32, second magnetic force layer; 4, sliding support; 5, connecting groove; 6, damper; 7, steel structure connecting layer; 8, steel structure support; 9, alternating current power supply; 10, bridge rectifier; 11, capacitor; 12, winding coil a; 13, winding coil b. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] In order to solve the contradiction between reducing the self weight of the building and increasing the lateral force of the building in the prior art, and to reduce the resonance of the building, please refer to Figures 1-5 The embodiment provides the following technical scheme:

[0030] In order to effectively isolate the energy transmission of the earthquake wave, a high-rise building is divided into at least two sections in the horizontal direction, including a bottom A section building 1 and a top B section building 2, and a magnetic attraction layer 3 is arranged between the A section building 1 and the B section building 2. The purpose of the design is to ensure that the bottom A section building 1 can be relatively stably fixed on the foundation when an earthquake occurs, and the top B section building 2 can be appropriately moved through the magnetic attraction layer 3, so as to absorb and dissipate the earthquake energy.

[0031] Due to the separation of the A section building 1 and the B section building 2, the earthquake force acting on the whole building can be calculated as two structural units, thereby reducing the self weight and the earthquake force. For the A section building 1, the design reduces the center of gravity, thereby reducing the earthquake force, and the upper end of the A section building 1 can reduce the “whipping effect” under the horizontal action of the earthquake due to the action of the electromagnetic force, thereby reducing the damage caused by the earthquake. For the B section building 2, when a major earthquake occurs, the B section building 2 will be damaged first, and the collapse of the B section building 2 will not have a great impact on the A section building 1. The collapse direction of the B section building 2 can be artificially controlled on the steel structure support 8, so as to reduce the impact on the surrounding buildings as much as possible.

[0032] The magnetic attraction layer 3 includes a first magnetic force layer 31 and a second magnetic force layer 32. The first magnetic force layer 31 is arranged at the top of the A section building 1, and the second magnetic force layer 32 is arranged at the bottom of the B section building 2. The first magnetic force layer 31 and the second magnetic force layer 32 generate magnetic attraction, so that the B section building 2 moves appropriately through the magnetic attraction when an earthquake occurs, thereby absorbing and dissipating the earthquake energy.

[0033] At least four sliding supports 4 are arranged at the bottom of the B section building 2, and connecting grooves 5 matched with the sliding supports 4 are arranged at the top of the A section building 1. The sliding supports 4 correspondingly penetrate into the connecting grooves 5. At least eight dampers 6 are arranged horizontally in each connecting groove 5. The dampers 6 are arranged around the four sides of the sliding supports 4. One end of the damper 6 is mounted on the side wall of the connecting groove 5, and the other end is mounted on the side wall of the sliding support 4. When the B section building 2 moves, the energy generated by the displacement is consumed through the damper 6. Through the cooperation of the sliding support 4 and the damper 6, the resonance effect of the building in the earthquake process can be effectively reduced, the anti-seismic performance is further enhanced, and the building can be returned after the earthquake.

[0034] A steel structure connecting layer 7 is arranged at the upper part of the B section building 2, and a steel structure support 8 is arranged between the outer edge of the steel structure connecting layer 7 and the ground, so that the main stress of the B section building 2 is transmitted to the ground through the steel structure support 8, and the steel structure support 8 around the B section building 2 is not connected with the A section building 1.

[0035] An electrically generated magnetic device is arranged in the first magnetic force layer 31 and the second magnetic force layer 32 for generating magnetic attraction, and the electrically generated magnetic device comprises:

[0036] An alternating current power supply 9 is arranged for providing a power source;

[0037] A bridge rectifier 10 is arranged for converting alternating current into direct current with unchanged current direction;

[0038] A capacitor 11 is arranged for adjusting the direct current to be more flat and stable direct current;

[0039] A winding coil a 12 and a winding coil b 13 are arranged in the interior of the first magnetic force layer 31 and the second magnetic force layer 32 respectively, and the winding coil a 12 and the winding coil b 13 generate a magnetic field with unchanged direction “N / S” after being input with direct current, so that a heterogeneous magnetic field is generated between the first magnetic force layer 31 and the second magnetic force layer 32, thereby generating magnetic attraction between the A section building 1 and the B section building 2.

[0040] The specific arrangement and shape of the winding coil a 12 and the winding coil b 13 need to be determined according to the site, and subsequently the input power strength and the number of coils can be changed according to the size of the earthquake grade, and a sliding rheostat can be designed here to change the number of coils to change the magnetic field strength.

[0041] The electrically generated magnetic device is matched with a control unit, and the control unit is used for receiving a seismic warning signal and controlling the start and stop of the electrically generated magnetic device and the magnetic field strength, and specifically:

[0042] After the control unit receives the seismic P-wave warning signal, the stable supply of the alternating current power supply 9 is ensured first, and the voltage and frequency are adjusted, then the bridge rectifier 10 is activated step by step to convert alternating current into direct current, and the charging process of the capacitor 11 is monitored and managed, and then the current supplied to the winding coil a 12 and the winding coil b 13 is accurately adjusted to enhance the magnetic field strength, and the start is completed by using the time difference before the arrival of the seismic S-wave, and the magnetic field is adjusted according to the relative displacement between the A section building 1 and the B section building 2, when the seismic activity weakens, the control unit gradually reduces the magnetic field strength until the shutdown state, and performs the final safety power-off check.

[0043] The A section building 1 adopts a shear wall structure or a cylinder structure, and the self-weight force thereof is directly applied to the foundation. The B section building 2 adopts a lighter steel structure, and the self-weight force thereof is directly applied to the steel structure support 8 through the steel structure connecting layer 7. The above-mentioned materials can save the cost and reduce the weight, which is beneficial to the anti-seismic. Since the construction materials of the A section building 1 and the B section building 2 are different, the conversion layer is arranged at the bottom of the B section building 2, so as to better adapt to the possible deformation.

[0044] Working principle: When the earthquake early warning system detects the impending seismic activity, the control unit receives the P-wave warning signal and quickly starts a series of response mechanisms. First, ensure the stable supply of AC power 9, then convert AC to DC through the bridge rectifier 10, and then adjust it to a flat and stable DC through the capacitor 11. This current is accurately delivered to the wire coil a12 and wire coil b13 in the first magnetic layer 31 arranged at the top of the A section building 1 and the second magnetic layer 32 arranged at the bottom of the B section building 2, thereby generating a direction-invariant "N / S" magnetic field, so that the magnetic attraction of opposite sex is generated between the two buildings.

[0045] At the same time, at least four sliding supports 4 arranged at the bottom of the B section building 2 allow it to horizontally displace relative to the A section, and at least eight dampers 6 arranged around the sliding supports 4 in each connecting groove 5 are used to consume the energy generated by displacement, thereby reducing the vibration. The steel structure connecting layer 7 and the steel structure support 8 obliquely arranged between the outer edge of the steel structure connecting layer 7 and the ground further ensure that the main stress of the B section building 2 can be directly transmitted to the ground, avoiding additional stress concentration.

[0046] Before the arrival of the S-wave, the control system uses the time difference to complete the above-mentioned starting process, and adjusts the magnetic field strength according to the relative displacement between the A section building 1 and the B section building 2. As the seismic activity weakens, the control unit gradually reduces the magnetic field strength until it is turned off, and performs a safety power-off check.

[0047] It should be noted that the relationship terms such as first and second in this text are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0048] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and changes can be made by those skilled in the art without departing from the spirit and principles of the present application.

Claims

1. A building seismic isolation device based on the principle of electromagnetism, comprising a building section A (1) at the bottom and a building section B (2) at the top, characterized in that: A magnetic attraction layer (3) is provided between the section A building (1) and the section B building (2), the magnetic attraction layer (3) comprising a first magnetic layer (31) and a second magnetic layer (32), the first magnetic layer (31) being provided at the top of the section A building (1), the second magnetic layer (32) being provided at the bottom of the section B building (2), and an electromagnetism device being provided in the first magnetic layer (31) and the second magnetic layer (32); At least four sliding supports (4) are provided at the bottom of the section B building (2), and a connecting groove (5) matching with the sliding support (4) is provided at the top of the section A building (1). The sliding support (4) is correspondingly inserted into the connecting groove (5). At least eight dampers (6) are horizontally provided in each connecting groove (5). The dampers (6) are arranged around the sliding support (4). One end of the damper (6) is mounted on the side wall of the connecting groove (5), and the other end is mounted on the side wall of the sliding support (4). A steel structure connection layer (7) is provided on the upper portion of the B-section building (2), and a steel structure support (8) is obliquely erected between the outer edge of the steel structure connection layer (7) and the ground.

2. The building seismic isolation device based on the electromagnetism principle according to claim 1 is characterized in that: The electromagnetism device comprises an AC power supply (9), a bridge rectifier (10), a capacitor (11), a winding coil a (12) and a winding coil b (13), wherein the winding coil a (12) and the winding coil b (13) are respectively arranged inside a first magnetic layer (31) and a second magnetic layer (32), and the AC power supply (9), the bridge rectifier (10), the capacitor (11), the winding coil a (12) and the winding coil b (13) form a current loop.

3. The building seismic isolation device based on the electromagnetism principle according to claim 2 is characterized in that: The electromagnetism device cooperates with the control unit.

4. The building seismic isolation device based on the electromagnetism principle according to claim 3 is characterized in that: The section A building (1) adopts a shear wall structure or a cylindrical structure, and the section B building (2) adopts a steel structure.

5. The building seismic isolation device based on the electromagnetism principle according to claim 4 is characterized in that: A transfer layer is provided at the bottom of the B-section building (2).

6. A building seismic isolation method based on the electromagnetism principle, implemented based on the building seismic isolation device based on the electromagnetism principle according to any one of claims 1 to 5, characterized in that: The following steps are involved: Step 1: When the earthquake early warning system detects an imminent earthquake activity, the control unit is activated; Step 2: Ensure the stable supply of AC power (9) and gradually activate the bridge rectifier (10) to convert AC power into DC power; Step 3: Monitor and manage the charging process of the capacitor (11), and accurately adjust the current supplied to the winding coil a (12) and the winding coil b (13), so that a magnetic attraction is generated between the first magnetic layer (31) and the second magnetic layer (32), so that when an earthquake occurs, the section B building (2) moves appropriately through the magnetic attraction, thereby absorbing and dissipating the earthquake energy. When the section B building (2) moves, the energy generated by the displacement is consumed through the damper (6); Step 4: Dynamically adjust the magnetic field strength according to the relative displacement between the building in section A (1) and the building in section B (2); Step 5. When seismic activity subsides, gradually reduce the magnetic field strength until it is off and perform a final safety power-off check.

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