CN113309249A - Shock isolation device for building - Google Patents
Shock isolation device for building Download PDFInfo
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- CN113309249A CN113309249A CN202110658305.1A CN202110658305A CN113309249A CN 113309249 A CN113309249 A CN 113309249A CN 202110658305 A CN202110658305 A CN 202110658305A CN 113309249 A CN113309249 A CN 113309249A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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Abstract
The invention relates to a shock isolation device for a building, which relates to the technical field of building construction and comprises an embedded upper plate and an embedded lower plate, wherein two connecting plates are symmetrically arranged between the embedded upper plate and the embedded lower plate, and the inner walls of the connecting plates are provided with pressure sensors; a plurality of tracks are symmetrically arranged on the lower surface of the embedded upper plate, moving blocks are connected in the tracks in a sliding mode, a first support is arranged at one end, far away from the buffer plate, of each track, a first push rod is connected to one side, close to the moving blocks, of each first support, and the first push rods are used for applying acting force to the moving blocks located on the same track; the two sides of the upper surface of the embedded lower plate are symmetrically provided with fixed struts, one side of each fixed strut, which is close to the movable plate, is provided with a plurality of second push rods, and each second push rod is used for applying acting force to the movable plate at the position opposite to the second push rod. The invention effectively improves the shock insulation efficiency of the shock insulation device.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a shock isolation device for a building.
Background
Earthquake is a natural phenomenon which cannot be avoided in human society, and casualties and economic losses caused by earthquake are 90% or more caused by building collapse. Therefore, all countries in the world aim to make engineering earthquake resistance and disaster reduction work, improve the earthquake fortification level of construction engineering and improve the earthquake resistance of the construction engineering.
The base isolation technique is characterized by that it adopts flexible connection between upper structure of building and foundation, and sets a sufficiently safe isolation system, and because of the action of "isolation" and "shock absorption" of isolation layer, the upper structure can be made into approximate translation movement during earthquake so as to "isolate" earthquake
In the prior art, most of the basic shock isolation devices are static, the self shock absorption state can not be adjusted in time according to the stress of an earthquake, the service life of the device is prolonged while the earthquake feeling is relieved, and particularly the shock absorption effect of the device is seriously influenced in an earthquake frequent region.
Disclosure of Invention
Therefore, the invention provides a shock isolation device for a building, which is used for solving the problem of low shock isolation efficiency caused by the fact that the shock isolation device in the prior art cannot adjust the self shock absorption state in real time according to the earthquake intensity.
In order to achieve the above objects, the present invention provides a seismic isolation apparatus for buildings, comprising,
the embedded type pressure sensor comprises an embedded upper plate and an embedded lower plate, wherein two connecting plates are symmetrically arranged between the embedded upper plate and the embedded lower plate, and the inner walls of the connecting plates are provided with pressure sensors which are used for detecting the external pressure applied to the connecting plates;
a plurality of tracks are symmetrically arranged on the lower surface of the embedded upper plate, moving blocks are connected in the tracks in a sliding mode, a first support is arranged at one end, far away from the buffer plate, of each track, a first push rod is connected to one side, close to the moving blocks, of each first support, and the first push rods are used for applying acting force to the moving blocks located on the same track;
the two sides of the upper surface of the embedded lower plate are symmetrically provided with fixed struts, one side of each fixed strut, which is close to the movable plate, is provided with a plurality of second push rods, and each second push rod is used for applying acting force to the movable plate at the position opposite to the second push rod;
a sliding groove is formed in the middle of the upper surface of the embedded lower plate, a moving strut is arranged on the sliding groove in a sliding mode, a controller is arranged on the moving strut, and the controller is used for controlling the first push rod and the second push rod to move;
the controller monitors the external pressure on the connecting plate in real time through the pressure sensor, judges the intensity of the received vibration according to the detected external pressure A, and controls the motion of each first push rod according to the duration t of the light vibration when judging that the light vibration is influenced;
when the controller judges that the controller is influenced by moderate vibration, the controller calculates the initial thrust of the first push rod during moderate vibration according to the thrust of the first push rod during light vibration, and controls the first push rods to move towards the moving block direction according to the initial thrust of the first push rod during moderate vibration, and meanwhile, the controller regulates and controls the thrust of the first push rods according to the detected displacement B of the moving block;
when the controller judges that the controller is influenced by strong vibration, the controller controls the first push rods and the second push rods to move simultaneously and respectively sets the thrust of the first push rods and the thrust of the second push rods, the controller regulates and controls the thrust of the push rods according to the detected displacement C of the movable plate, and when the regulation and control are performed, the controller respectively regulates the thrust of the first push rods and the thrust of the second push rods according to the displacement D of the movable support and controls the push rods to move according to the regulated thrust.
Further, the controller monitors the external pressure on the connecting plate in real time, compares the detected external pressure A with each preset external pressure, and judges the vibration intensity according to the comparison result, wherein,
when A < A1, the controller determines that the light shock is affected, and further makes a determination based on the shock duration;
when A1 is more than or equal to A and less than A2, the controller judges that the first push rod is influenced by medium vibration and controls the first push rod to move;
when A2 is not more than A, the controller judges that the first push rod and the second push rod are influenced by strong vibration and controls the first push rods and the second push rods to move simultaneously;
wherein A1 is the first preset ambient pressure, A2 is the second preset ambient pressure, A1 is less than A2.
Further, when the controller judges that the controller is influenced by light vibration, the controller records the duration time t of the light vibration, compares the duration time t with a preset duration time t0, and controls the first push rods to move according to the comparison result, wherein,
when t is less than t0, the controller judges that the vibration is in a controllable range and does not adjust;
when t is larger than or equal to t0, the controller controls the first push rods to move towards the moving block direction by the aid of the thrust Fa, and Fa is the preset push rod thrust.
Further, when the controller determines that the controller is affected by a moderate shock, the controller controls each of the first push rods to move in a moving block direction, and sets the pushing force to Fb, which is set to Fa x [1+ (a-a1)/a1 ].
Further, when the vehicle is affected by moderate vibration, the controller regulates and controls the thrust of each first push rod according to the detected displacement B of the moving block, compares the detected displacement B of the moving block with the displacement of each preset moving block, and controls the first push rods to move according to the comparison result, wherein,
when B is less than B1, the controller adjusts the thrust of each first push rod in real time according to the intermediate vibration duration ta, the controller sets the thrust of each first push rod as Fb', and sets Fb × (1+ ta/10), wherein the unit of the intermediate vibration duration ta is second;
when B1 is not less than B and is less than B2, the controller controls each first push rod to move towards the moving block by thrust Fb', and when the duration ta of the middle vibration is more than ta1, the controller controls each second push rod to move towards the moving plate by thrust Ga, and Ga is set to Fa x [1+ (B-B1)/B1 ];
when B2 is not more than B, the controller controls each first push rod to move towards the moving block direction by a thrust Fb ″, and sets Fb ═ Fb' × [1+ (B-B2)/B2], and when the vibration duration ta is more than ta2, the controller controls each second push rod to move towards the moving plate direction by a thrust Gb, and sets Gb ═ Ga × [1+ (B-B2)/B2 ];
the moving block displacement amount is B1, the moving block displacement amount is B2, the moving block displacement amount is B1 < B2, the duration time of the vibration in the first preset is ta1, the duration time of the vibration in the second preset is ta2, and ta1 is greater than ta 2.
Further, when the controller determines that the controller is affected by strong vibration, the controller controls each of the first push rods to move in a moving block direction and controls each of the second push rods to move in a moving plate direction, and the controller sets a thrust of each of the first push rods to Fc, sets Fc ═ Fb "× [1+ (a-a2)/a2], sets a thrust of each of the second push rods to Gc, and sets Gc ═ Gb × [1+ (a-a2)/a2 ].
Further, when the push rod is influenced by strong vibration, the controller regulates and controls the thrust of each push rod according to the detected displacement C of the movable plate, compares the detected displacement C of the movable plate with the displacement of each preset movable plate, and controls the push rods to move according to the comparison result, wherein,
when C is less than C1, the controller does not regulate and control;
when C1 ≦ C < C2, the controller sets the thrust force of each of the first pushrods to Fc ', sets Fc' ═ fcx [1+ (C-C1)/C1], sets the thrust force of each of the second pushrods to Gc ', sets Gc' ═ Gc x [1+ (C-C1)/C1 ];
when C2 is not more than C, the controller regulates and controls the thrust of each push rod according to the displacement D of the movable support;
wherein, C1 is the displacement of the first preset movable plate, C2 is the displacement of the second preset movable plate, and C1 < C2.
Further, when the controller regulates and controls the thrust of each push rod according to the displacement D of the movable strut, the controller compares the displacement D of the movable strut with a preset displacement D0 of the movable strut and controls the movement of each push rod according to the comparison result, wherein,
when D < D0, the controller sets the thrust force of each of the first pushrods to Fc ″, sets Fc ″ ═ Fc '× [1+ (C-C2)/C2], sets the thrust force of each of the second pushrods to Gc ″, sets Gc ″ ═ Gc' × [1+ (C-C2)/C2 ];
when D is larger than or equal to D0, the controller sets the thrust of each first push rod to Fc0, Fc0 to Fc "× [1+ (D-D0)/D0], sets the thrust of each second push rod to Gc0, and sets Gc0 to Gc" × [1+ (D-D0)/D0 ].
Further, the shock insulation rubber support is characterized in that a plurality of struts are arranged between the embedded upper plate and the embedded lower plate, the struts are symmetrically distributed between the embedded upper plate and the embedded lower plate and used for supporting the embedded upper plate and the embedded lower plate, a plurality of grooves are formed in one side wall, away from the shock insulation rubber support, of the buffer plate, the grooves are matched with the struts in size, and the struts are located in the grooves.
Furthermore, both sides of the movable support are hinged with first dampers, the other ends of the first dampers are hinged with the movable block, one side face, away from the buffer ring, of the movable plate is hinged with a second damper, and the other end of the second damper is hinged with the movable block.
Compared with the prior art, the vibration isolation device has the beneficial effects that when the vibration isolation device is subjected to transverse pressure, the controller makes different judgments on vibration grades according to the stress and makes different measures according to different vibration grades, so that the vibration isolation effect for dealing with vibrations of different grades can be effectively improved, meanwhile, the damage of the vibrations to the vibration isolation device is reduced, the service life of the vibration isolation device is effectively prolonged, when the controller judges that the vibration isolation device is influenced by light vibration, the controller controls the movement of each first push rod according to the duration time t of the light vibration, the movement of each first push rod is controlled through the duration time t of the light vibration, the abrasion degree of the vibration isolation device per se can be effectively reduced, and meanwhile, the vibration isolation effect of the vibration isolation device is effectively improved; when the controller judges that the controller is influenced by medium vibration, the controller calculates the initial thrust of the first push rod during medium vibration according to the thrust of the first push rod during light vibration, obtains different thrusts according to different stress sizes, can effectively ensure the accuracy of the calculated thrust, further improves the shock insulation effect of the shock insulation device, simultaneously regulates and controls the thrust of each first push rod according to the detected displacement B of the moving block, the displacement B of the moving block is equivalent to the deformation quantity of the spring, controls each first push rod to move in different states according to different deformation quantities, can effectively improve the shock insulation efficiency of the shock insulation device, and controls each second push rod to move when the displacement B of the moving block reaches a preset value, so that the shock insulation efficiency of the shock insulation device can be further improved, and meanwhile, the damage of the shock to the shock insulation device is reduced, the service life of the shock isolation device is prolonged; when the controller judges that the controller is influenced by strong vibration, the controller controls the first push rods and the second push rods to move simultaneously so as to increase the sliding resistance of the moving block and the movable plate simultaneously, thereby enhancing the consumption of stress, reducing the vibration sensation, and the controller calculates the thrust of each first push rod and the thrust of each second push rod according to a formula, the thrust of each push rod is regulated and controlled according to the displacement C of the movable plate, so that the supporting strength of each first push rod and each second push rod is effectively ensured to meet the requirement, thereby effectively reducing the damage of the vibration to the vibration isolation device, prolonging the service life of the vibration isolation device, meanwhile, the shock insulation efficiency of the shock insulation device is improved, and the motion state of each push rod is further adjusted through the displacement D of the movable support column, so that the shock insulation efficiency of the shock insulation device can be further improved.
Particularly, the controller judges the vibration intensity by comparing the detected external pressure A with each preset external pressure, and further makes different reaction states according to different judgment results, so that the vibration isolation efficiency of the vibration isolation device is effectively improved, and the service life of the vibration isolation device is prolonged.
Particularly, the controller controls the first push rods to move by comparing the duration time t with the preset duration time t0, so that the vibration stress can be effectively ensured to be within a controllable range, and the vibration isolation efficiency of the vibration isolation device is improved.
Particularly, when the vibration isolation device is judged to be influenced by the vibration, the controller calculates the thrust according to the magnitude of the external pressure, the calculated thrust can be effectively ensured to reduce the vibration sense, and the vibration isolation efficiency of the vibration isolation device is further improved.
Particularly, the controller controls the first push rods to move by comparing the detected displacement amount B of the moving block with the displacement amount of each preset moving block, and when the displacement amounts of the moving blocks are different, the controller adopts different measures to further improve the shock insulation efficiency of the shock insulation device.
Particularly, when strong vibration influences are judged, the controller calculates the thrust of each push rod according to the stress magnitude, the motion thrust of each push rod can be effectively guaranteed to effectively offset the external pressure, and the shock insulation efficiency of the shock insulation device can be further improved.
Particularly, the controller controls the motion of each push rod by comparing the detected displacement C of the movable plate with the displacement of each preset movable plate, and when the displacements C of the movable plates are different, the controller takes different measures to further improve the shock insulation efficiency of the shock insulation device.
Especially, the controller is through the displacement volume D with removing the pillar with predetermineeing the displacement volume D0 of removing the pillar and compare each the control push rod motion, when the displacement volume D of removing the pillar is different, the controller takes different measures of answering, can further improve seismic isolation device's shock insulation efficiency.
Drawings
FIG. 1 is a schematic structural view of a seismic isolation device for a building according to this embodiment;
FIG. 2 is a plan view of the buffer plate of the present embodiment;
fig. 3 is a top view of the riser and the fixing rod of the present embodiment.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the invention is further described below with reference to examples; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and do not limit the scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1, a schematic structural diagram of a seismic isolation device for a building according to the present embodiment is shown, including,
the shock insulation device comprises a pre-buried upper plate 2 and a pre-buried lower plate 1, wherein the pre-buried upper plate 2 and the pre-buried lower plate 1 are both steel plates, a plurality of connecting bolts are arranged on the outer side surfaces of the pre-buried upper plate 2 and the pre-buried lower plate 1, two connecting plates 3 are symmetrically arranged between the pre-buried upper plate 2 and the pre-buried lower plate 1, the inner walls of the connecting plates 3 are provided with pressure sensors 23, the pressure sensors 23 are used for detecting the external pressure applied to the connecting plates 3, the connecting plates 3 are used for supporting the pre-buried upper plate 2 and the pre-buried lower plate 1, the side wall of each connecting plate 3 is connected with a shock insulation rubber support 4, the other side surface of the shock insulation rubber support 4 is connected with a buffer plate 5, a rubber pad is arranged outside the buffer plate 5, a plurality of support posts 6 are arranged between the pre-buried upper plate 2 and the pre-buried lower plate 1, and the support posts 6 are symmetrically distributed between the pre-buried upper plate 2 and the pre-buried lower plate 1, the struts 6 are used for supporting the embedded upper plate 2 and the embedded lower plate 1, and two groups of vertical plates 7 are symmetrically arranged on two sides of the upper surface of the embedded lower plate 1;
referring to fig. 2, a plurality of fixing rods 8 are connected between the vertical plates 7 of each group, and each fixing rod 8 is movably connected with a movable block 9;
as shown in fig. 1, a movable plate 10 is connected to a top of each movable block 9, a buffer ring 11 is connected to a side wall of the movable plate 10 close to the buffer plate 5, the buffer ring 11 is made of rubber, another end of the buffer ring 11 is connected to the buffer plate 5, a second distance measuring sensor is disposed on a side surface of the movable plate 10 connected to the buffer ring 11, and the second distance measuring sensor is configured to measure a distance between the movable plate 10 and the buffer plate 5 to determine a displacement of the movable plate 10;
a plurality of tracks 12 are symmetrically arranged on the lower surface of the embedded upper plate 2, a moving block 13 is slidably connected in the tracks 12, a buffer spring 14 is connected to one side surface of the moving block 13 close to the buffer plate 5, the other end of the buffer spring 14 is connected with the buffer plate 5, a first distance measuring sensor is arranged on one side surface of the moving block 13 connected with the buffer spring 14 and used for measuring the distance between the moving block 13 and the buffer plate 5 so as to determine the displacement of the moving block 13, a first support 21 is arranged at one end of the tracks 12 far away from the buffer plate 5, a first push rod 22 is connected to one side of the first support 21 close to the moving block 13, and the first push rod 22 is used for applying acting force to the moving block 13 in the same track 12 as the first push rod 22;
two sides of the upper surface of the embedded lower plate 1 are symmetrically provided with fixed struts 19, one side of the fixed struts 19 close to the movable plate 10 is provided with a plurality of second push rods 20, and each second push rod 20 is used for applying acting force to the movable plate 10 opposite to the second push rod 20;
a sliding groove 18 is formed in the middle of the upper surface of the embedded lower plate 1, a moving strut 15 is slidably arranged on the sliding groove 18, a third distance measuring sensor is arranged on one side surface of the moving strut 15 and used for measuring the distance between the moving strut 15 and the fixed strut 19 so as to determine the displacement of the moving strut 15, a controller 24 is arranged on the moving strut 15 and used for controlling the movement of each of the first push rod 22 and the second push rod 20, first dampers 16 are hinged to two sides of the moving strut 15, the other end of each first damper 16 is hinged to the moving block 13, a second damper 17 is hinged to one side surface of the moving plate 10 away from the buffering ring 11, and the other end of each second damper 17 is hinged to the moving block 13;
referring to fig. 3, a plurality of grooves are formed in a side wall of the buffer plate 5 away from the seismic isolation rubber support 4, the size of each groove is matched with that of the support 6, and the support 6 is located in the groove.
It is understood that the number of the grooves of the buffer plate 5 is not limited in this embodiment, and may be set according to the actual ground area.
Specifically, the controller monitors the external pressure on the connecting plate in real time, compares the detected external pressure A with each preset external pressure, and judges the vibration intensity according to the comparison result, wherein,
when A < A1, the controller determines that the light shock is affected, and further makes a determination based on the shock duration;
when A1 is more than or equal to A and less than A2, the controller judges that the first push rod is influenced by medium vibration and controls the first push rod to move;
when A2 is not more than A, the controller judges that the first push rod and the second push rod are influenced by strong vibration and controls the first push rods and the second push rods to move simultaneously;
wherein A1 is the first preset ambient pressure, A2 is the second preset ambient pressure, A1 is less than A2.
Specifically, the controller of the embodiment determines the vibration intensity by comparing the detected external pressure a with each preset external pressure, and then makes different response states according to different determination results, so that the vibration isolation efficiency of the vibration isolation device is effectively improved, and the service life of the vibration isolation device is prolonged.
Specifically, when the controller determines that the controller is affected by light vibration, the controller records the duration time t of light vibration, compares the duration time t with a preset duration time t0, and controls the first push rods to move according to the comparison result, wherein,
when t is less than t0, the controller judges that the vibration is in a controllable range and does not adjust;
when t is larger than or equal to t0, the controller controls the first push rods to move towards the moving block direction by the aid of the thrust Fa, and Fa is the preset push rod thrust.
Specifically, when the controller determines that the controller is affected by a moderate shock, the controller controls each of the first pushrods to move in a moving block direction, and sets the thrust force to Fb, which is set to Fa × [1+ (a-a1)/a1 ].
Specifically, when the vehicle is affected by moderate vibration, the controller regulates and controls the thrust of each first push rod according to the detected displacement B of the moving block, compares the detected displacement B of the moving block with the displacement of each preset moving block, and controls the first push rods to move according to the comparison result, wherein,
when B is less than B1, the controller adjusts the thrust of each first push rod in real time according to the intermediate vibration duration ta, the controller sets the thrust of each first push rod as Fb', and sets Fb × (1+ ta/10), wherein the unit of the intermediate vibration duration ta is second;
when B1 is not less than B and is less than B2, the controller controls each first push rod to move towards the moving block by thrust Fb', and when the duration ta of the middle vibration is more than ta1, the controller controls each second push rod to move towards the moving plate by thrust Ga, and Ga is set to Fa x [1+ (B-B1)/B1 ];
when B2 is not more than B, the controller controls each first push rod to move towards the moving block direction by a thrust Fb ″, and sets Fb ═ Fb' × [1+ (B-B2)/B2], and when the vibration duration ta is more than ta2, the controller controls each second push rod to move towards the moving plate direction by a thrust Gb, and sets Gb ═ Ga × [1+ (B-B2)/B2 ];
the moving block displacement amount is B1, the moving block displacement amount is B2, the moving block displacement amount is B1 < B2, the duration time of the vibration in the first preset is ta1, the duration time of the vibration in the second preset is ta2, and ta1 is greater than ta 2.
Specifically, in the embodiment, the controller controls the first push rods to move by comparing the detected displacement amount B of the moving block with the displacement amount of each preset moving block, and when the displacement amounts of the moving blocks are different, the controller takes different measures to further improve the vibration isolation efficiency of the vibration isolation device.
Specifically, when the controller determines that the controller is affected by strong vibration, the controller controls the first push rods to move in the moving block direction and controls the second push rods to move in the movable plate direction, and the controller sets the thrust of the first push rods to Fc, sets Fc ═ Fb "× [1+ (a-a2)/a2], sets the thrust of the second push rods to Gc, and sets Gc ═ Gb × [1+ (a-a2)/a2 ].
Particularly, when judging that the shock insulation device is influenced by strong shock, the controller calculates each thrust of the push rod according to the stress, can effectively ensure that each motion thrust of the push rod can effectively offset the external pressure, and can further improve the shock insulation efficiency of the shock insulation device.
Specifically, when the vehicle is affected by strong vibration, the controller controls the thrust of each push rod according to the detected displacement C of the movable plate, compares the detected displacement C of the movable plate with the displacement of each preset movable plate, and controls the push rods to move according to the comparison result, wherein,
when C is less than C1, the controller does not regulate and control;
when C1 ≦ C < C2, the controller sets the thrust force of each of the first pushrods to Fc ', sets Fc' ═ fcx [1+ (C-C1)/C1], sets the thrust force of each of the second pushrods to Gc ', sets Gc' ═ Gc x [1+ (C-C1)/C1 ];
when C2 is not more than C, the controller regulates and controls the thrust of each push rod according to the displacement D of the movable support;
wherein, C1 is the displacement of the first preset movable plate, C2 is the displacement of the second preset movable plate, and C1 < C2.
Specifically, when the controller regulates and controls the thrust of each push rod according to the displacement D of the movable strut, the controller compares the displacement D of the movable strut with a preset displacement D0 of the movable strut and controls the movement of each push rod according to the comparison result, wherein,
when D < D0, the controller sets the thrust force of each of the first pushrods to Fc ″, sets Fc ″ ═ Fc '× [1+ (C-C2)/C2], sets the thrust force of each of the second pushrods to Gc ″, sets Gc ″ ═ Gc' × [1+ (C-C2)/C2 ];
when D is larger than or equal to D0, the controller sets the thrust of each first push rod to Fc0, Fc0 to Fc "× [1+ (D-D0)/D0], sets the thrust of each second push rod to Gc0, and sets Gc0 to Gc" × [1+ (D-D0)/D0 ].
Particularly, this embodiment the controller is through the displacement volume D with removing the pillar with predetermineeing the displacement volume D0 of removing the pillar and comparing control each the push rod motion, when the displacement volume D of removing the pillar is different, the controller takes different measures of answering, can further improve seismic isolation device's shock insulation efficiency.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (10)
1. A seismic isolation device for buildings is characterized by comprising,
the embedded type pressure sensor comprises an embedded upper plate and an embedded lower plate, wherein two connecting plates are symmetrically arranged between the embedded upper plate and the embedded lower plate, and the inner walls of the connecting plates are provided with pressure sensors which are used for detecting the external pressure applied to the connecting plates;
a plurality of tracks are symmetrically arranged on the lower surface of the embedded upper plate, moving blocks are connected in the tracks in a sliding mode, a first support is arranged at one end, far away from the buffer plate, of each track, a first push rod is connected to one side, close to the moving blocks, of each first support, and the first push rods are used for applying acting force to the moving blocks located on the same track;
the two sides of the upper surface of the embedded lower plate are symmetrically provided with fixed struts, one side of each fixed strut, which is close to the movable plate, is provided with a plurality of second push rods, and each second push rod is used for applying acting force to the movable plate at the position opposite to the second push rod;
a sliding groove is formed in the middle of the upper surface of the embedded lower plate, a moving strut is arranged on the sliding groove in a sliding mode, a controller is arranged on the moving strut, and the controller is used for controlling the first push rod and the second push rod to move;
the controller monitors the external pressure on the connecting plate in real time through the pressure sensor, judges the intensity of the received vibration according to the detected external pressure A, and controls the motion of each first push rod according to the duration t of the light vibration when judging that the light vibration is influenced;
when the controller judges that the controller is influenced by moderate vibration, the controller calculates the initial thrust of the first push rod during moderate vibration according to the thrust of the first push rod during light vibration, and controls the first push rods to move towards the moving block direction according to the initial thrust of the first push rod during moderate vibration, and meanwhile, the controller regulates and controls the thrust of the first push rods according to the detected displacement B of the moving block;
when the controller judges that the controller is influenced by strong vibration, the controller controls the first push rods and the second push rods to move simultaneously and respectively sets the thrust of the first push rods and the thrust of the second push rods, the controller regulates and controls the thrust of the push rods according to the detected displacement C of the movable plate, and when the regulation and control are performed, the controller respectively regulates the thrust of the first push rods and the thrust of the second push rods according to the displacement D of the movable support and controls the push rods to move according to the regulated thrust.
2. The seismic isolation apparatus as claimed in claim 1, wherein the controller monitors the external pressure applied to the connection plate in real time, compares the detected external pressure A with each preset external pressure, and determines the vibration intensity according to the comparison result, wherein,
when A < A1, the controller determines that the light shock is affected, and further makes a determination based on the shock duration;
when A1 is more than or equal to A and less than A2, the controller judges that the first push rod is influenced by medium vibration and controls the first push rod to move;
when A2 is not more than A, the controller judges that the first push rod and the second push rod are influenced by strong vibration and controls the first push rods and the second push rods to move simultaneously;
wherein A1 is the first preset ambient pressure, A2 is the second preset ambient pressure, A1 is less than A2.
3. The seismic isolation apparatus as claimed in claim 2, wherein when the controller determines that the controller is affected by light vibration, the controller records a duration t of light vibration, compares the duration t with a preset duration t0, and controls the movement of each first push rod according to the comparison result, wherein,
when t is less than t0, the controller judges that the vibration is in a controllable range and does not adjust;
when t is larger than or equal to t0, the controller controls the first push rods to move towards the moving block direction by the aid of the thrust Fa, and Fa is the preset push rod thrust.
4. The seismic isolation apparatus as claimed in claim 2, wherein when the controller determines that the controller is affected by a moderate shock, the controller controls each of the first push rods to move in a moving block direction and sets a thrust force to Fb, which is Fa x [1+ (a-a1)/a1 ].
5. The seismic isolation device for buildings according to claim 4, wherein when affected by moderate vibration, the controller regulates and controls the thrust of each first push rod according to the detected displacement B of the moving block, compares the detected displacement B of the moving block with the displacement of each preset moving block, and controls the movement of each first push rod according to the comparison result, wherein,
when B is less than B1, the controller adjusts the thrust of each first push rod in real time according to the intermediate vibration duration ta, the controller sets the thrust of each first push rod as Fb', and sets Fb × (1+ ta/10), wherein the unit of the intermediate vibration duration ta is second;
when B1 is not less than B and is less than B2, the controller controls each first push rod to move towards the moving block by thrust Fb', and when the duration ta of the middle vibration is more than ta1, the controller controls each second push rod to move towards the moving plate by thrust Ga, and Ga is set to Fa x [1+ (B-B1)/B1 ];
when B2 is not more than B, the controller controls each first push rod to move towards the moving block direction by a thrust Fb ″, and sets Fb ═ Fb' × [1+ (B-B2)/B2], and when the vibration duration ta is more than ta2, the controller controls each second push rod to move towards the moving plate direction by a thrust Gb, and sets Gb ═ Ga × [1+ (B-B2)/B2 ];
the moving block displacement amount is B1, the moving block displacement amount is B2, the moving block displacement amount is B1 < B2, the duration time of the vibration in the first preset is ta1, the duration time of the vibration in the second preset is ta2, and ta1 is greater than ta 2.
6. The seismic isolation apparatus for buildings according to claim 2, wherein when the controller determines that the controller is affected by strong vibration, the controller controls the first push rods to move in a moving block direction and controls the second push rods to move in a moving plate direction, and the controller sets the thrust of the first push rods to Fc, sets Fc ═ Fb "× [1+ (a-a2)/a2], sets the thrust of the second push rods to Gc, and sets Gc ═ Gb × [1+ (a-a2)/a2 ].
7. The seismic isolation device for buildings according to claim 6, wherein when being affected by strong vibration, the controller controls the thrust of each push rod according to the detected displacement C of the movable plate, compares the detected displacement C of the movable plate with the displacement of each preset movable plate, and controls the motion of each push rod according to the comparison result, wherein,
when C is less than C1, the controller does not regulate and control;
when C1 ≦ C < C2, the controller sets the thrust force of each of the first pushrods to Fc ', sets Fc' ═ fcx [1+ (C-C1)/C1], sets the thrust force of each of the second pushrods to Gc ', sets Gc' ═ Gc x [1+ (C-C1)/C1 ];
when C2 is not more than C, the controller regulates and controls the thrust of each push rod according to the displacement D of the movable support;
wherein, C1 is the displacement of the first preset movable plate, C2 is the displacement of the second preset movable plate, and C1 < C2.
8. The seismic isolation device for buildings according to claim 7, wherein when the controller regulates and controls the thrust of each push rod according to the displacement D of the movable support, the controller compares the displacement D of the movable support with a preset displacement D0 of the movable support and controls the movement of each push rod according to the comparison result, wherein,
when D < D0, the controller sets the thrust force of each of the first pushrods to Fc ″, sets Fc ″ ═ Fc '× [1+ (C-C2)/C2], sets the thrust force of each of the second pushrods to Gc ″, sets Gc ″ ═ Gc' × [1+ (C-C2)/C2 ];
when D is larger than or equal to D0, the controller sets the thrust of each first push rod to Fc0, Fc0 to Fc "× [1+ (D-D0)/D0], sets the thrust of each second push rod to Gc0, and sets Gc0 to Gc" × [1+ (D-D0)/D0 ].
9. The seismic isolation device for the building as claimed in claim 1, wherein a plurality of struts are arranged between the embedded upper plate and the embedded lower plate, the struts are symmetrically distributed between the embedded upper plate and the embedded lower plate, the struts are used for supporting the embedded upper plate and the embedded lower plate, a plurality of grooves are formed in one side wall of the buffer plate, which is far away from the seismic isolation rubber support, each groove is matched with the size of the strut, and the struts are located in the grooves.
10. The seismic isolation device for the building as claimed in claim 1, wherein first dampers are hinged to two sides of the movable support, the other ends of the first dampers are hinged to the movable block, a second damper is hinged to one side face, away from the buffering ring, of the movable plate, and the other end of the second damper is hinged to the movable block.
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