CN110424250B - System for actively preventing concrete beam from colliding and using method thereof - Google Patents
System for actively preventing concrete beam from colliding and using method thereof Download PDFInfo
- Publication number
- CN110424250B CN110424250B CN201910633393.2A CN201910633393A CN110424250B CN 110424250 B CN110424250 B CN 110424250B CN 201910633393 A CN201910633393 A CN 201910633393A CN 110424250 B CN110424250 B CN 110424250B
- Authority
- CN
- China
- Prior art keywords
- electromagnet
- circuit
- main
- concrete beam
- distance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The invention discloses a system for actively preventing a concrete beam from colliding, which comprises a concrete beam A and a concrete beam B which are adjacent, wherein a main electromagnet A is packaged in the concrete beam A through a steel plate A, a main electromagnet B is packaged in the concrete beam B through a steel plate B, the concrete beam A is provided with a left side electromagnet A and a right side electromagnet A, and the concrete beam B is provided with a left side electromagnet B and a right side electromagnet B; a central displacement monitoring device is arranged in the opening A of the steel plate A, and displacement monitoring devices are respectively arranged in the left side electromagnet A and the right side electromagnet A; the single chip microcomputer circuit system forms a circuit with the main electromagnet A, the main electromagnet B, the left side electromagnet A, the left side electromagnet B, the right side electromagnet A and the right side electromagnet B respectively, the current in the circuit changes in size and direction according to the monitoring result of the displacement monitoring device, and attraction or repulsion between every two electromagnets is controlled, so that the concrete beam A and the concrete beam B are kept at a proper distance, and collision is prevented.
Description
Technical Field
The invention belongs to the field of traffic engineering and bridge technical treatment, and particularly relates to a system for actively preventing a concrete beam from colliding and a using method thereof.
Background
When the bridge encounters a strong earthquake, explosion or impact, large impact and dynamic load are born instantaneously, large relative displacement is generated between the upper part and the lower part of the bridge, and if the displacement exceeds the limit value of the laying length of the main beams, collision can occur between the adjacent main beams. The bridge is used as a junction project on a traffic line, once the bridge is crashed due to collision, the whole traffic network is paralyzed, and great difficulty is brought to disaster relief work.
In the related patents disclosed in the prior art, a metal damping type anti-falling beam damping support or a buffering type steel strand stay cable type anti-falling beam device is adopted, and the collision of a bridge body is prevented by arranging an energy consumption limiting device and the like. The devices passively and mechanically prevent collision of adjacent beams, and intelligent active control of relative displacement between adjacent beams is not realized by monitoring the relative displacement between the beams so as to prevent collision of the beams. The system for preventing concrete collision can monitor the relative displacement between adjacent beams in real time, actively and intelligently control the relative positions of the beams according to the monitoring result, and is simple in structure and convenient to implement.
Disclosure of Invention
The invention provides a system for actively preventing a concrete beam from colliding, which aims at the existing problems and comprises a concrete beam A and a concrete beam B which are adjacent to each other, and further comprises a main electromagnet A, a left side electromagnet A, a right side electromagnet A, a main electromagnet B, a left side electromagnet B and a right side electromagnet B which are connected with a single chip microcomputer circuit system, wherein the main electromagnet A is packaged in the concrete beam A through a steel plate A, the main electromagnet B is packaged in the concrete beam B through a steel plate B, the surfaces of the steel plate A and the steel plate B are opposite, and are respectively provided with an opening A and an opening B; the lower part of the left side flange plate and the lower part of the right side flange plate of the concrete beam A are respectively provided with a left side electromagnet A and a right side electromagnet A, and the lower part of the left side flange plate and the lower part of the right side flange plate of the concrete beam B are respectively provided with a left side electromagnet B and a right side electromagnet B; a central displacement monitoring device is arranged in the opening A of the steel plate A, and a left displacement monitoring device and a right displacement monitoring device are respectively arranged in the left side electromagnet A and the right side electromagnet A; the single chip microcomputer circuit system respectively forms a circuit with the main electromagnet A, the main electromagnet B, the left side electromagnet A, the left side electromagnet B, the right side electromagnet A and the right side electromagnet B, the current in the circuit changes in size and direction according to the monitoring result of the displacement monitoring device, and the attraction or repulsion between every two electromagnets is controlled through the current direction, so that the concrete beam A and the concrete beam B are kept at a proper distance, and collision is prevented.
In order to achieve the purpose, the invention adopts the technical scheme that: a system for actively preventing concrete beam collision comprises a concrete beam A and a concrete beam B which are adjacent, and further comprises a main electromagnet A, a left side electromagnet A, a right side electromagnet A, a main electromagnet B, a left side electromagnet B and a right side electromagnet B which are connected with a single chip microcomputer circuit system,
the main electromagnet A is packaged in the concrete beam A through a steel plate A, the main electromagnet B is packaged in the concrete beam B through a steel plate B, the surfaces of the steel plate A and the steel plate B are opposite, and the steel plate A and the steel plate B are respectively provided with an opening A and an opening B;
the lower part of the left side flange plate and the lower part of the right side flange plate of the concrete beam A are respectively provided with a left side electromagnet A and a right side electromagnet A, and the lower part of the left side flange plate and the lower part of the right side flange plate of the concrete beam B are respectively provided with a left side electromagnet B and a right side electromagnet B;
a central displacement monitoring device is arranged in the opening A of the steel plate A, and a left displacement monitoring device and a right displacement monitoring device are respectively arranged in the left side electromagnet A and the right side electromagnet A;
the single chip microcomputer circuit system respectively forms a circuit with the main electromagnet A, the main electromagnet B, the left side electromagnet A, the left side electromagnet B, the right side electromagnet A and the right side electromagnet B, the current in the circuit changes the size and the direction according to the monitoring result of the displacement monitoring device, and the attraction or the repulsion between every two electromagnets is controlled through the current direction; the strength of the electromagnetic ferromagnetism is controlled by the current.
As an improvement of the invention, the singlechip circuit system and the main electromagnet A and the main electromagnet B respectively form a main circuit A and a main circuit B, the main circuit A controls the main electromagnet A, the main circuit B controls the main electromagnet B, when current is introduced into the main circuit A and the main circuit B, the main electromagnet B generates an S-pole or N-pole magnetic field at one end close to the steel plate B4 according to the current direction in the main circuit B, and the main electromagnet A generates an N-pole magnetic field at one end close to the steel plate A3.
As another improvement of the invention, the singlechip circuit system and the left side electromagnet A and the left side electromagnet B respectively form a left side circuit A and a left side circuit B, the left side circuit A controls the left side electromagnet A, the left side circuit B controls the left side electromagnet B, when current is introduced into the left side circuit A and the left side circuit B, the left side electromagnet B generates an S pole or N pole magnetic field at the end close to the left side electromagnet A according to the current direction in the left side circuit B, and the left side electromagnet A generates an N pole magnetic field at the end close to the left side electromagnet B.
As another improvement of the invention, the singlechip circuit system and the right side electromagnet A and the right side electromagnet B respectively form a right side circuit A and a right side circuit B, the right side circuit A controls the right side electromagnet A, the right side circuit B controls the right side electromagnet B, when current is introduced into the right side circuit A and the right side circuit B, the right side electromagnet B generates an S pole or N pole magnetic field at the end close to the right side electromagnet A according to the current direction in the right side circuit B, and the right side electromagnet A generates an N pole magnetic field at the end close to the right side electromagnet B.
As a further improvement of the invention, when the concrete beam A keeps a normal distance with the concrete beam B, no current flows in the main circuit A, the main circuit B, the left circuit A, the left circuit B, the right circuit A and the right circuit B, and all electromagnets have no magnetism.
As another improvement of the invention, a support frame A is cast in the concrete beam A, the main electromagnet A is anchored on the support frame A through a bolt A, the steel plate A is welded with the main electromagnet A, and the main electromagnet A is packaged in the concrete beam A; a support frame B is poured in the concrete beam B, the main electromagnet B is anchored on the support frame B through a bolt B, the steel plate B is welded with the main electromagnet B, and the main electromagnet B is packaged in the concrete beam B;
in order to achieve the purpose, the invention also adopts the technical scheme that: a use method of the active concrete beam collision prevention system comprises the following steps:
s1, determining a critical minimum distance F1 and a maximum distance F2 between a main electromagnet A and a main electromagnet B, wherein F2 is greater than F1, determining a critical minimum distance T1 and a maximum distance T2 between a left side electromagnet A and a left side electromagnet B, wherein T2 is greater than T1, determining a critical minimum distance L1 and a maximum distance L2 between the right side electromagnet A and the right side electromagnet B, wherein L2 is greater than L1, and the critical minimum distances F1, T1 and L1 are respectively the minimum distances between the main electromagnet A and the main electromagnet B, between the left side electromagnet A and the left side electromagnet B and between the right side electromagnet A and the right side electromagnet B under the normal condition of the concrete beam;
s2, presetting a singlechip circuit system, and inputting maximum distances F2, L2 and T2 and critical minimum distances F1, L1 and T1;
s3, monitoring the distance between the main electromagnet A and the main electromagnet B through a central displacement monitoring device, comparing the distance with F1 and F2 respectively, and when the distance between the two main electromagnets is larger than F1 and smaller than F2, controlling the main circuit A and the main circuit B to be not operated by the single chip microcomputer circuit system, wherein the main electromagnet A and the main electromagnet B are nonmagnetic; when the distance between the two main electromagnets is smaller than F1, the singlechip circuit system controls the main circuit A and the main circuit B to be electrified, the main electromagnet B generates an N-pole magnetic field at one end close to the steel plate B4 according to the current direction in the main circuit B, the main electromagnet A generates an N-pole magnetic field at one end close to the steel plate A3, and the main electromagnet A and the main electromagnet B repel each other and are far away from each other to prevent collision; when the distance between the two main electromagnets is larger than F2, the singlechip circuit system controls the main circuit A and the main circuit B to be electrified, the main electromagnet B generates an S-pole magnetic field at one end close to the steel plate B4 according to the current direction in the main circuit B, the main electromagnet A generates an N-pole magnetic field at one end close to the steel plate A3, and the main electromagnet A and the main electromagnet B attract each other and are close to each other;
s4, monitoring the distance between the left electromagnet A and the left electromagnet B through a left displacement monitoring device, comparing the distance with T1 and T2 respectively, and controlling the left circuit A and the left circuit B to be out of work by the singlechip circuit system when the distance between the two left electromagnets is larger than T1 and smaller than T2, wherein the two left electromagnets have no magnetism; when the distance between the two left electromagnets is smaller than T1, the single chip microcomputer circuit system controls the left circuit A and the left circuit B to be electrified, the left electromagnet B generates an N-pole magnetic field at the end close to the left electromagnet A according to the current direction in the left circuit B, the left electromagnet A generates an N-pole magnetic field at the end close to the left electromagnet B, the left electromagnet A and the left electromagnet B repel each other, the distance is increased, and collision is prevented; when the distance between the two left electromagnets is larger than T2, the single chip microcomputer circuit system controls the left circuit A and the left circuit B to be electrified, the left electromagnet B generates an S-pole magnetic field at the end close to the left electromagnet A according to the current direction in the left circuit B, the left electromagnet A generates an N-pole magnetic field at the end close to the left electromagnet B, and the left electromagnet A and the left electromagnet B attract each other and are close to each other;
s5, monitoring the distance between the right electromagnet A and the right electromagnet B through a right displacement monitoring device, comparing the distance with L1 and L2 respectively, and controlling the right circuit A and the right circuit B to be out of work by the singlechip circuit system when the distance between the two right electromagnets is larger than L1 and smaller than L2, wherein the two right electromagnets have no magnetism; when the distance between the two right electromagnets is smaller than L1, the singlechip circuit system controls the right circuit A and the right circuit B to be electrified, the right electromagnet B generates an N-pole magnetic field at the end close to the right electromagnet A according to the current direction in the right circuit B, the right electromagnet A generates an N-pole magnetic field at the end close to the right electromagnet B, the right electromagnet A and the right electromagnet B repel each other, the distance is increased, and collision is prevented; when the distance between the two right electromagnets is larger than T2, the singlechip circuit system controls the right circuit A and the right circuit B to be electrified, the right electromagnet B generates an S-pole magnetic field at the end close to the right electromagnet A according to the current direction in the right circuit B, the right electromagnet A generates an N-pole magnetic field at the end close to the right electromagnet B, and the right electromagnet A and the right electromagnet B attract each other and are close to each other.
In order to achieve the purpose, the invention also adopts the technical scheme that: when the monitoring result of a central displacement monitoring device is smaller than the preset value of a single chip microcomputer circuit system, collision danger exists between a concrete beam A and the concrete beam B, the single chip microcomputer circuit system controls the main circuit A and the main circuit B to generate current, a main electromagnet B generates an N-pole magnetic field at the end close to a steel plate B according to the current direction, the main electromagnet A generates an N-pole magnetic field at the end close to the steel plate A, and the main electromagnet A and the main electromagnet B repel each other to drive the concrete beam A and the concrete beam B to repel each other and separate to prevent collision.
Compared with the prior art, the invention discloses an anti-collision system for a concrete beam, which has the following advantages:
1. intelligent regulation and control: according to the system for preventing the concrete beams from colliding, when the adjacent concrete beam bodies are close to each other and the distance exceeds the minimum limit value, the electromagnet is excited to work, and repulsion occurs between the concrete beam bodies; when the adjacent concrete beam bodies are far away from each other, and the distance exceeds the maximum limit value, the electromagnet is excited to work, the concrete beam bodies are mutually attracted, the method is scientific, reasonable, economical and effective, the data operation mode of the single chip microcomputer circuit system is more in line with the current demand of artificial intelligence, and the method is safer and more reliable.
2. Simple structure, it is convenient to implement: the system for preventing the concrete beams from colliding is simple in structural form, and can ensure that the adjacent concrete beams do not generate overlarge or undersize relative displacement through the control of the electromagnet and the related control single chip microcomputer circuit system, so that the adjacent concrete beams are prevented from colliding.
3. The application range is wide: the system for preventing the concrete beam from colliding provided by the invention can be used for not only beams made of concrete materials, but also steel-concrete composite structure bridges; the main beam not only can be used for a simply supported girder bridge, but also can be used for a continuous girder bridge, an arch bridge, a cable-stayed bridge and a suspension bridge.
Drawings
FIG. 1 is a structural exploded view of an active concrete beam impact prevention system of the present invention;
FIG. 2 is a schematic view of the internal bracing frame structure of the concrete beam of the present invention;
in the figure: 1. the concrete beam A comprises 1-1 of a left flange plate of the concrete beam A and 1-2 of a right flange plate of the concrete beam A;
2. 2-1, 2-2 and 2-2 right flange plates of the concrete beam B;
3. steel plates A, 4, steel plates B, 5, main electromagnets A, 6 and main electromagnet B;
7-1, a support frame A in the concrete beam A, 7-2, and a support frame B in the concrete beam B;
8-1 left electromagnet A, 8-2 left electromagnet B, 9-1 right electromagnet A, 9-2 right electromagnet B,
10-1 central displacement monitoring device, 10-2 left side displacement monitoring device, 10-3 right side displacement monitoring device, 11-1 opening A, 11-2 opening B, 12-1 bolt A, 12-2 bolt B
Detailed Description
The invention will be explained in more detail below with reference to the drawings and examples.
Example 1
A system for actively preventing a concrete beam from colliding comprises an adjacent concrete beam A1 and an adjacent concrete beam B2, and further comprises a main electromagnet A5, a left side electromagnet A8-1, a right side electromagnet A9-1, a main electromagnet B6, a left side electromagnet B8-2 and a right side electromagnet B9-2 which are connected with a single chip microcomputer circuit system, wherein the main electromagnet A5 is packaged in the concrete beam A1 through a steel plate A3, the main electromagnet B6 is packaged in the concrete beam B2 through a steel plate B4, the surfaces of the steel plate A3 and the steel plate B4 are opposite, and an opening A11-1 and an opening B11-2 are respectively formed in the steel plate A3 and the steel plate B4; as shown in fig. 2, a support frame A7-1 is cast in the concrete beam A1, the main electromagnet A5 is anchored on the support frame A7-1 through a bolt a 12-1, the steel plate A3 is welded with the main electromagnet A5, and the main electromagnet A5 is encapsulated in the concrete beam A1; a support frame B7-2 is poured in the concrete beam B2, the main electromagnet B6 is anchored on the support frame B7-2 through a bolt B12-2, the steel plate B4 and the main electromagnet B6 are welded together, and the main electromagnet B6 is packaged in the concrete beam B2.
The lower part of a left flange plate 1-1 and the lower part of a right flange plate 1-2 of the concrete beam A1 are respectively provided with a left side electromagnet A8-1 and a right side electromagnet A8-2, and the lower part of a left side flange plate 2-1 and the lower part of a right side flange plate 2-2 of the concrete beam B2 are respectively provided with a left side electromagnet B9-1 and a right side electromagnet B9-2;
a central displacement monitoring device 10-1 is arranged in an opening A11-1 of the steel plate A3, an opening B11-2 of the steel plate B4 is used for connecting the displacement monitoring device and the right side electromagnet by a circuit, and a left displacement monitoring device 10-2 and a right displacement monitoring device 10-3 are respectively arranged in the left side electromagnet A8-1 and the right side electromagnet A8-2;
the single chip microcomputer circuit system respectively forms circuits with the main electromagnet A5, the main electromagnet B6, the left side electromagnet A8-1, the left side electromagnet B9-1, the right side electromagnet A8-2 and the right side electromagnet B8-2, the power supply controls the displacement monitoring device to work, after the work result of the displacement monitoring device is input into the single chip microcomputer circuit system, the single chip microcomputer circuit system drives the electromagnets to form the circuits, the single chip microcomputer circuit system, the main electromagnet A5 and the main electromagnet B6 respectively form a main circuit A and a main circuit B, the main circuit A controls the main electromagnet A5, the main circuit B controls the main electromagnet B6, when current is introduced into the main circuit A and the main circuit B, the main electromagnet B6 generates an S pole or N pole magnetic field at one end close to the steel plate B4 according to the current direction in the main circuit B, the main electromagnet A generates an N-pole magnetic field at one end close to the steel plate A3; the single chip microcomputer circuit system and the left side electromagnet A8-1 and the left side electromagnet B9-1 respectively form a left side circuit A and a left side circuit B, the left side circuit A controls the left side electromagnet A8-1, the left side circuit B controls the left side electromagnet B9-1, when current is introduced into the left side circuit A and the left side circuit B, the left side electromagnet B9-1 generates an S pole or N pole magnetic field at the end close to the left side electromagnet A8-1 according to the current direction in the left side circuit B, and the left side electromagnet A8-1 generates an N pole magnetic field at the end close to the left side electromagnet B9-1; the singlechip circuit system and the right side electromagnet A8-2 and the right side electromagnet B9-2 respectively form a right side circuit A and a right side circuit B, the right side circuit A controls the right side electromagnet A8-2, the right side circuit B controls the right side electromagnet B9-2, when current is introduced into the right side circuit A and the right side circuit B, the right side electromagnet B9-2 generates an S pole or N pole magnetic field at the end close to the right side electromagnet A8-2 according to the current direction in the right side circuit B, the right side electromagnet A8-2 generates an N pole magnetic field at the end close to the right side electromagnet B9-2, the current in the circuit changes direction according to the monitoring result of the displacement monitoring device, and the attraction or repulsion between every two electromagnets is controlled through the current direction, so that the normal distance is kept between the adjacent concrete beams, the collision is prevented, and the specific steps are as follows:
the singlechip circuit system, the main electromagnet A and the main electromagnet B respectively form a main circuit A and a main circuit B, and when the central distance between the main electromagnet A5 of the concrete beam A1 and the main electromagnet B6 of the concrete beam B2 measured by the central displacement monitoring device 10-1 is greater than a preset value F1 and less than a preset value F2, the current of the circuit A and the circuit B in the singlechip circuit system is 0; when the central distance between the main electromagnet A5 of the concrete beam A1 and the main electromagnet B6 of the concrete beam B2, which is measured by the central displacement monitoring device 10-1, is greater than or equal to a preset value F2, the main circuit A and the main circuit B in the single chip microcomputer circuit system generate current, the current can increase along with the increase of the distance, the main electromagnet B6 generates a magnetic field with an S pole at the steel plate 4 in the current direction in the main circuit B, the electromagnet A5 generates a magnetic field with an N pole at the steel plate 3 in the current direction in the main circuit A, and the two magnetic fields attract each other, so that the concrete beam A1 and the concrete beam B2 are close to each other to prevent separation; when the center distance between the main electromagnet A5 of the concrete beam A1 and the main electromagnet B6 of the concrete beam B2 measured by the center displacement monitoring device 10-1 is smaller than or equal to the preset value F1, the two concrete beams are too close to each other at the moment, and a collision phenomenon is about to occur, so that the circuit a and the circuit B in the single chip microcomputer circuit system generate current, the current is increased along with the decrease of the distance, the current direction in the circuit B enables the main electromagnet B6 to generate a magnetic field with an N pole at the end of the steel plate 4, the current direction in the circuit a enables the main electromagnet A5 to generate a magnetic field with an N pole at the end of the steel plate 3, the two magnetic fields repel each other, and the two concrete beams are separated from each other to prevent collision.
The left circuit A and the left circuit B are respectively formed by the singlechip circuit system, the left electromagnet A8-1 and the left electromagnet B9-1, the left circuit A controls the left electromagnet A8-1, the left circuit B controls the left electromagnet B9-1, and when the central distance between the electromagnet A8-1 at the position of a left flange plate 1-1 of the concrete beam A1 and the electromagnet B9-1 at the position of a left flange plate 2-1 of the concrete beam B2, which is measured by the left displacement monitoring device 10-2, is greater than a preset value T1 and smaller than a preset value T2, the left circuit A and the left circuit B do not work in the singlechip circuit system, and the current is 0; when the distance between the centers of the left electromagnet A8-1 of the beam 1 and the left electromagnet B9-1 of the concrete beam B2, measured by the left displacement monitoring device 10-2, is smaller than or equal to a preset value T1, the distance between the two concrete beams is too close, collision danger is about to occur, at the moment, the single chip microcomputer circuit system and the left circuit A and the left circuit B generate currents, the currents can be increased along with the reduction of the distance, the current direction in the left circuit A enables the left electromagnet A8-1 to generate an N-pole magnetic field at the end close to the left electromagnet B9-1, the current direction in the left circuit B enables the left electromagnet B9-1 to generate an N-pole magnetic field at the end close to the left electromagnet A8-1, the two magnetic fields repel each other, and the concrete beams are far away from each other; when the distance between the centers of the left electromagnet A8-1 of the beam A1 and the left electromagnet B9-1 of the concrete beam B2, measured by the left displacement monitoring device 10-2, is greater than or equal to a preset value T2, the single-chip microcomputer circuit system, the left circuit A and the left circuit B generate currents, the currents can increase along with the increase of the distance, the current direction is such that the left electromagnet A8-1 generates an S-pole magnetic field, the electromagnet B9-1 generates an N-pole magnetic field, the two magnetic fields attract each other, and the concrete beam A and the concrete beam B approach each other.
The right side circuit A and the right side circuit B are respectively formed by the singlechip circuit system, the right side electromagnet A8-2 and the right side electromagnet B9-2, the right side circuit A controls the right side electromagnet A8-2, the right side circuit B controls the right side electromagnet B9-2, and when the center distance between the right side electromagnet A8-2 of the concrete beam A1 and the right side electromagnet B9-2 of the concrete beam B2, which is measured by the right side displacement monitoring device 10-3, is greater than a preset value L1 and smaller than a preset value L2, the currents of the right side circuit A and the right side circuit B in the singlechip circuit system are 0; when the distance between the centers of the right electromagnet A8-2 of the concrete beam A1 and the right electromagnet B9-2 of the concrete beam B2, which is measured by the right displacement monitoring device 10-3, is smaller than or equal to a preset value L1, the single chip microcomputer circuit system, the right circuit A and the right circuit B generate currents, the currents can increase along with the reduction of the distance, the current direction is such that the right electromagnet A8-2 generates an N-pole magnetic field at the end close to the right electromagnet B9-2, and the right electromagnet B9-2 generates an N-pole magnetic field at the end close to the right electromagnet A8-2; when the distance between the centers of the right electromagnet A8-2 of the concrete beam A1 and the right electromagnet B9-2 of the concrete beam B2, which is measured by the right displacement monitoring device 10-3, is greater than or equal to a preset value L2, the single chip microcomputer circuit system, the right circuit A and the right circuit B generate currents, the currents can increase along with the increase of the distance, the current direction is that the right electromagnet A8-2 generates an S-pole magnetic field at the end close to the right electromagnet B9-2, the right electromagnet B9-2 generates an N-pole magnetic field at the end close to the right electromagnet A8-2, the two magnetic fields attract each other, and the concrete beams approach each other.
Example 2
A method for using a system for actively preventing a concrete beam from colliding is characterized in that the components in the system are assembled through the following steps:
step 1: a support frame A7-1 and a support frame B7-2 are respectively cast in advance in the box chambers of the concrete beam A1 and the concrete beam B2;
step 2: a left electromagnet A8-1, a right electromagnet B8-2, a left electromagnet B9-1 and a right electromagnet B9-2 are pre-installed below the flange plates of the concrete beam A1 and the concrete beam B2;
and step 3: a steel plate A3 and a steel plate B4 are arranged at the end parts of the concrete beam A1 and the concrete beam B2 which are close to each other, a hole groove 11-1 of a single chip microcomputer circuit system circuit is reserved on the steel plate A3, and a hole groove 11-2 of a single chip microcomputer circuit system passage is reserved on the steel plate B4;
and 4, step 4: respectively placing a main electromagnet A5 and a main electromagnet B6 in a concrete beam A1 and a concrete beam B2;
and 5: welding a main electromagnet A5 and a main electromagnet B6 on a steel plate A3 and a steel plate B4 respectively, and fixing the main electromagnets and the main electromagnets respectively through a support frame A7-1 and a support frame B7-2 through a bolt A13-1 and a bolt B13-2;
step 6: installing a central displacement monitoring device 10-1, a left side displacement monitoring device 10-2 and a right side displacement monitoring device 10-3;
and 7: switching on a circuit system of the single chip microcomputer, and setting distance values F1, F2, T1, T2, L1 and L2;
and 8: and starting the displacement monitoring devices 10-1-10-3.
A use method of the active concrete beam collision prevention system comprises the following steps:
s1, determining a critical minimum distance F1 and a maximum distance F2 between a main electromagnet A and a main electromagnet B, wherein F2 is greater than F1, determining a critical minimum distance T1 and a maximum distance T2 between a left side electromagnet A and a left side electromagnet B, wherein T2 is greater than T1, determining a critical minimum distance L1 and a maximum distance L2 between the right side electromagnet A and the right side electromagnet B, wherein L2 is greater than L1, and the critical minimum distances F1, T1 and L1 are respectively the minimum distances between the main electromagnet A and the main electromagnet B, between the left side electromagnet A and the left side electromagnet B and between the right side electromagnet A and the right side electromagnet B under the normal condition of the concrete beam;
s2, presetting a singlechip circuit system, and inputting maximum distances F2, L2 and T2 and critical minimum distances F1, L1 and T1;
s3, the distance between the main electromagnet A and the main electromagnet B is monitored through a central displacement monitoring device and is compared with F1 and F2 respectively, when the distance between the two main electromagnets is larger than F1 and smaller than F2, the distance between the two concrete beams is normal, the main circuit A and the main circuit B are controlled by a single chip microcomputer circuit system to be out of operation, and the main electromagnet A and the main electromagnet B are nonmagnetic; when the distance between the two main electromagnets is smaller than F1, the distance between the two concrete beams is near critical, and collision danger can occur, so that the single chip microcomputer circuit system controls the main circuit A and the main circuit B to be electrified, the main electromagnet B generates an N-pole magnetic field at one end close to the steel plate B4 according to the current direction in the main circuit B, the main electromagnet A generates an N-pole magnetic field at one end close to the steel plate A3, the main electromagnet A and the main electromagnet B repel each other, the distance is increased, collision is prevented, the magnetism is increased along with the increase of the current, the repulsion of the main electromagnet A and the main electromagnet B is further ensured, and the concrete beam A and the concrete beam B are prevented from colliding with each other; when the distance between the two main electromagnets is larger than F2, the distance between the concrete beam A and the concrete beam B is far, the single chip microcomputer circuit system controls the main circuit A and the main circuit B to be electrified, the main electromagnet B generates an S-pole magnetic field at one end close to the steel plate B4 according to the current direction in the main circuit B, the main electromagnet A generates an N-pole magnetic field at one end close to the steel plate A3, the main electromagnet A and the main electromagnet B are attracted, the distance is close, the magnetism is increased along with the increase of the current and is decreased along with the decrease of the current, and the magnetism of the main electromagnet A and the main electromagnet B can be determined through manually controlling the current, so that the separation distance is determined;
s4, the distance between the left electromagnet A and the left electromagnet B is monitored through a left displacement monitoring device and is compared with T1 and T2 respectively, when the distance between the two left electromagnets is larger than T1 and smaller than T2, the distance between the left flange plates of the two concrete beams is normal, the left circuit A and the left circuit B are controlled by a single-chip microcomputer circuit system to be out of work, and the two left electromagnets are nonmagnetic; when the distance between the two left electromagnets is smaller than T1, the distance between the left flange plates of the two concrete beams is too close to cause collision danger, the single chip microcomputer circuit system controls the left circuit A and the left circuit B to be electrified, the left electromagnet B generates an N-pole magnetic field at the end close to the left electromagnet A according to the current direction in the left circuit B, the left electromagnet A generates an N-pole magnetic field at the end close to the left electromagnet B, the left electromagnet A and the left electromagnet B repel each other, the distance is increased, and collision is prevented; when the distance between the two left electromagnets is larger than T2, the single chip microcomputer circuit system controls the left circuit A and the left circuit B to be electrified, the left electromagnet B generates an S-pole magnetic field at the end close to the left electromagnet A according to the current direction in the left circuit B, the left electromagnet A generates an N-pole magnetic field at the end close to the left electromagnet B, and the left electromagnet A and the left electromagnet B attract each other and are close to each other;
s5, monitoring the distance between the right electromagnet A and the right electromagnet B through a right displacement monitoring device, comparing the distance with L1 and L2 respectively, and controlling the right circuit A and the right circuit B to be out of work by the singlechip circuit system when the distance between the two right electromagnets is larger than L1 and smaller than L2, wherein the two right electromagnets have no magnetism; when the distance between the two right electromagnets is smaller than L1, the singlechip circuit system controls the right circuit A and the right circuit B to be electrified, the right electromagnet B generates an N-pole magnetic field at the end close to the right electromagnet A according to the current direction in the right circuit B, the right electromagnet A generates an N-pole magnetic field at the end close to the right electromagnet B, the right electromagnet A and the right electromagnet B repel each other, the distance is increased, and collision is prevented; when the distance between the two right electromagnets is larger than T2, the singlechip circuit system controls the right circuit A and the right circuit B to be electrified, the right electromagnet B generates an N-pole magnetic field at the end close to the right electromagnet A according to the current direction in the right circuit B, the right electromagnet A generates an N-pole magnetic field at the end close to the right electromagnet B, and the right electromagnet A and the right electromagnet B attract each other and are close to each other.
Through the steps, the distance between the concrete beams can be scientifically and effectively judged according to the distance value measured by the displacement monitoring device, and the adjacent concrete beam bodies can be prevented from generating overlarge or undersize relative displacement through the control of the electromagnet and the related control single chip circuit system, so that the collision between the adjacent concrete beam bodies is avoided.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited by the foregoing examples, which are provided to illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, which is also intended to be covered by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A system for actively preventing a concrete beam from colliding is characterized by comprising a concrete beam A and a concrete beam B which are adjacent, and further comprising a main electromagnet A, a left side electromagnet A, a right side electromagnet A, a main electromagnet B, a left side electromagnet B and a right side electromagnet B which are connected with a single chip microcomputer circuit system,
the main electromagnet A is packaged in the concrete beam A through a steel plate A, the main electromagnet B is packaged in the concrete beam B through a steel plate B, the surfaces of the steel plate A and the steel plate B are opposite, and the steel plate A and the steel plate B are respectively provided with an opening A and an opening B;
the lower part of the left side flange plate and the lower part of the right side flange plate of the concrete beam A are respectively provided with a left side electromagnet A and a right side electromagnet A, and the lower part of the left side flange plate and the lower part of the right side flange plate of the concrete beam B are respectively provided with a left side electromagnet B and a right side electromagnet B;
a central displacement monitoring device is arranged in the opening A of the steel plate A, and a left displacement monitoring device and a right displacement monitoring device are respectively arranged in the left side electromagnet A and the right side electromagnet A;
the single chip microcomputer circuit system respectively forms a circuit with the main electromagnet A, the main electromagnet B, the left side electromagnet A, the left side electromagnet B, the right side electromagnet A and the right side electromagnet B, the current in the circuit changes the size and the direction according to the monitoring result of the displacement monitoring device, and the attraction or the repulsion between every two electromagnets is controlled through the current direction; the strength of the electromagnetic ferromagnetism is controlled by the current.
2. An active concrete beam impact prevention system as claimed in claim 1, wherein: when current is introduced into the main circuit A and the main circuit B, the main electromagnet B generates an S-pole magnetic field or an N-pole magnetic field at one end close to the steel plate B according to the current direction in the main circuit B, and the main electromagnet A generates an N-pole magnetic field at one end close to the steel plate A.
3. An active concrete beam impact prevention system as claimed in claim 2, wherein: the single chip microcomputer circuit system and the left side electromagnet A and the left side electromagnet B respectively form a left side circuit A and a left side circuit B, the left side circuit A controls the left side electromagnet A, the left side circuit B controls the left side electromagnet B, when current is introduced into the left side circuit A and the left side circuit B, the left side electromagnet B generates an S pole magnetic field or an N pole magnetic field near the left side electromagnet A end according to the current direction in the left side circuit B, and the left side electromagnet A generates an N pole magnetic field near the left side electromagnet B end.
4. A system for actively preventing a concrete beam from colliding as set forth in claim 2 or 3, wherein: the single chip microcomputer circuit system and the right side electromagnet A and the right side electromagnet B respectively form a right side circuit A and a right side circuit B, the right side circuit A controls the right side electromagnet A, the right side circuit B controls the right side electromagnet B, when current is introduced into the right side circuit A and the right side circuit B, the right side electromagnet B generates an S pole or N pole magnetic field at the right side electromagnet A end according to the current direction in the right side circuit B, and the right side electromagnet A generates an N pole magnetic field at the right side electromagnet B end.
5. An active concrete beam impact prevention system as claimed in claim 4, wherein: when the concrete beam A keeps a normal distance with the concrete beam B, no current exists in the main circuit A, the main circuit B, the left circuit A, the left circuit B, the right circuit A and the right circuit B, and all electromagnets are nonmagnetic.
6. An active concrete beam collision prevention system according to claim 1 or 5, wherein: a support frame A is poured in the concrete beam A, the main electromagnet A is anchored on the support frame A through a bolt A, the steel plate A is welded with the main electromagnet A, and the main electromagnet A is packaged in the concrete beam A; and a support frame B is poured in the concrete beam B, the main electromagnet B is anchored on the support frame B through a bolt B, and the steel plate B is welded with the main electromagnet B and encapsulates the main electromagnet B in the concrete beam B.
7. An active concrete beam impact prevention system as claimed in claim 1, wherein: when the monitoring result of the central displacement monitoring device is smaller than the preset value of the single chip microcomputer circuit system, the concrete beam A and the concrete beam B are in collision danger, the single chip microcomputer circuit system controls the main circuit A and the main circuit B to generate current, the main electromagnet B generates an N-pole magnetic field at one end close to the steel plate B according to the current direction, the main electromagnet A generates an N-pole magnetic field at one end close to the main steel plate A, the main electromagnet A and the main electromagnet B repel each other to drive the concrete beam A and the concrete beam B to repel each other and separate from each other to prevent collision.
8. A use method of a system for actively preventing a concrete beam from colliding is characterized in that: assembling the components in the system by the following steps:
step 1: respectively casting a support frame A and a support frame B in advance in the box chambers of the concrete beam A and the concrete beam B;
step 2: a left electromagnet A, a right electromagnet B, a left electromagnet B and a right electromagnet B are pre-installed below the flange plates of the concrete beam A and the concrete beam B;
and step 3: a steel plate A and a steel plate B are arranged at the end parts of the concrete beam A and the concrete beam B which are close to each other, a hole groove of a circuit of the single chip microcomputer circuit system is reserved on the steel plate A, and a hole groove of a channel of the single chip microcomputer circuit system is reserved on the steel plate B;
and 4, step 4: respectively placing a main electromagnet A and a main electromagnet B in a concrete beam A and a concrete beam B;
and 5: welding a main electromagnet A and a main electromagnet B on a steel plate A and a steel plate B respectively, and fixing the main electromagnet A and the main electromagnet B by a support frame A and a support frame B through a bolt A and a bolt B respectively;
step 6: installing a central displacement monitoring device, a left side displacement monitoring device and a right side displacement monitoring device;
and 7: switching on a circuit system of the single chip microcomputer, and setting distance values F1, F2, T1, T2, L1 and L2;
and 8: starting the displacement monitoring device, wherein the using method comprises the following steps:
s1, determining a critical minimum distance F1 and a maximum distance F2 between a main electromagnet A and a main electromagnet B, wherein F2 is greater than F1, determining a critical minimum distance T1 and a maximum distance T2 between a left side electromagnet A and a left side electromagnet B, wherein T2 is greater than T1, determining a critical minimum distance L1 and a maximum distance L2 between the right side electromagnet A and the right side electromagnet B, wherein L2 is greater than L1, and the critical minimum distances F1, T1 and L1 are respectively the minimum distances between the main electromagnet A and the main electromagnet B, between the left side electromagnet A and the left side electromagnet B and between the right side electromagnet A and the right side electromagnet B under the normal condition of the concrete beam;
s2, presetting a singlechip circuit system, and inputting maximum distances F2, L2 and T2 and critical minimum distances F1, L1 and T1;
s3, monitoring the distance between the main electromagnet A and the main electromagnet B through a central displacement monitoring device, comparing the distance with F1 and F2 respectively, and when the distance between the two main electromagnets is larger than F1 and smaller than F2, controlling the main circuit A and the main circuit B to be not operated by the single chip microcomputer circuit system, wherein the main electromagnet A and the main electromagnet B are nonmagnetic; when the distance between the two main electromagnets is smaller than F1, the singlechip circuit system controls the main circuit A and the main circuit B to be electrified, the main electromagnet B generates an N-pole magnetic field at one end close to the steel plate B according to the current direction in the main circuit B, the main electromagnet A generates an N-pole magnetic field at one end close to the steel plate A, and the main electromagnet A and the main electromagnet B repel each other and are far away from each other to prevent collision; when the distance between the two main electromagnets is larger than F2, the singlechip circuit system controls the main circuit A and the main circuit B to be electrified, the main electromagnet B generates an S-pole magnetic field at the end close to the steel plate B according to the current direction in the main circuit B, the main electromagnet A generates an N-pole magnetic field at the end close to the steel plate A, and the main electromagnet A and the main electromagnet B attract each other and are close to each other;
s4, monitoring the distance between the left electromagnet A and the left electromagnet B through a left displacement monitoring device, comparing the distance with T1 and T2 respectively, and controlling the left circuit A and the left circuit B to be out of work by the singlechip circuit system when the distance between the two left electromagnets is larger than T1 and smaller than T2, wherein the two left electromagnets have no magnetism; when the distance between the two left electromagnets is smaller than T1, the single chip microcomputer circuit system controls the left circuit A and the left circuit B to be electrified, the left electromagnet B generates an N-pole magnetic field at the end close to the left electromagnet A according to the current direction in the left circuit B, the left electromagnet A generates an N-pole magnetic field at the end close to the left electromagnet B, the left electromagnet A and the left electromagnet B repel each other, the distance is increased, and collision is prevented; when the distance between the two left electromagnets is larger than T2, the single chip microcomputer circuit system controls the left circuit A and the left circuit B to be electrified, the left electromagnet B generates an S-pole magnetic field at the end close to the left electromagnet B according to the current direction in the left circuit B, the left electromagnet A generates an N-pole magnetic field at the end close to the left electromagnet B, and the left electromagnet A and the left electromagnet B attract each other and are close to each other;
s5, monitoring the distance between the right electromagnet A and the right electromagnet B through a right displacement monitoring device, comparing the distance with L1 and L2 respectively, and controlling the right circuit A and the right circuit B to be out of work by the singlechip circuit system when the distance between the two right electromagnets is larger than L1 and smaller than L2, wherein the two right electromagnets have no magnetism; when the distance between the two right electromagnets is smaller than L1, the singlechip circuit system controls the right circuit A and the right circuit B to be electrified, the right electromagnet B generates an N-pole magnetic field at the end close to the right electromagnet A according to the current direction in the right circuit B, the right electromagnet A generates an N-pole magnetic field at the end close to the right electromagnet B, the right electromagnet A and the right electromagnet B repel each other, the distance is increased, and collision is prevented; when the distance between the two right electromagnets is larger than T2, the singlechip circuit system controls the right circuit A and the right circuit B to be electrified, the right electromagnet B generates an S-pole magnetic field close to the electromagnet A end on the right side according to the current direction in the right circuit B, the right electromagnet A generates an N-pole magnetic field close to the right electromagnet A end, and the right electromagnet A and the right electromagnet B attract each other and are close to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910633393.2A CN110424250B (en) | 2019-07-12 | 2019-07-12 | System for actively preventing concrete beam from colliding and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910633393.2A CN110424250B (en) | 2019-07-12 | 2019-07-12 | System for actively preventing concrete beam from colliding and using method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110424250A CN110424250A (en) | 2019-11-08 |
| CN110424250B true CN110424250B (en) | 2021-03-09 |
Family
ID=68409400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910633393.2A Active CN110424250B (en) | 2019-07-12 | 2019-07-12 | System for actively preventing concrete beam from colliding and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110424250B (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58144221A (en) * | 1982-02-19 | 1983-08-27 | Mitsubishi Electric Corp | Vibration controller |
| JPH108771A (en) * | 1996-06-21 | 1998-01-13 | Mitsubishi Steel Mfg Co Ltd | Damper for building |
| CN1275448A (en) * | 1999-05-26 | 2000-12-06 | 神钢电机株式会社 | Vibration-damper for steel sheet |
| JP2005009211A (en) * | 2003-06-20 | 2005-01-13 | Ohbayashi Corp | Structure supporting structure |
| CN1588586A (en) * | 2004-09-14 | 2005-03-02 | 北京理工大学 | Repul sive force type electromagnetic shift executing system |
| JP2005083090A (en) * | 2003-09-09 | 2005-03-31 | Tokai Univ | Prop type damping device |
| JP2009180628A (en) * | 2008-01-31 | 2009-08-13 | Biikku Kk | Building diagnostic device |
| JP5201946B2 (en) * | 2007-11-07 | 2013-06-05 | 中国電力株式会社 | Overhead traveling crane |
| CN105507135A (en) * | 2016-01-29 | 2016-04-20 | 石家庄铁道大学 | Seismic isolation control method having anti-girder-falling and anti-collision functions and seismic isolation control structure |
| CN105544380A (en) * | 2016-01-29 | 2016-05-04 | 石家庄铁道大学 | Seismic-mitigation-and-isolation control method and structure with self-reset function |
| CN206267580U (en) * | 2016-12-01 | 2017-06-20 | 陕西长恨歌演艺文化有限公司 | A kind of flexible grandstand automatic deviation rectifying device |
| CN107084218A (en) * | 2017-05-05 | 2017-08-22 | 东南大学 | A kind of adaptive controllable electromagnetic damper |
| CN107101588A (en) * | 2017-04-26 | 2017-08-29 | 东南大学 | A kind of long-life high-performance bridge expansion joint installation |
| CN108385510A (en) * | 2018-02-09 | 2018-08-10 | 石家庄铁道大学 | A kind of electromagnetic type bridge earthquake resistance anti-fall girder apparatus |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3233796B2 (en) * | 1994-09-30 | 2001-11-26 | 三菱重工業株式会社 | Linear drive actuator |
| CN100436718C (en) * | 2006-09-05 | 2008-11-26 | 武汉理工大学 | Hybrid system for controlling longitudinal vibration reaction of girder of cable stayed bridge in float type |
| CN104179118B (en) * | 2014-08-20 | 2016-01-20 | 重庆邮电大学 | The method for designing of the magnetorheological bearing-damper of anti-impact vibration isolation type bridge pier and device |
| CN206800174U (en) * | 2017-06-06 | 2017-12-26 | 广州大学 | A kind of soft collision protector suitable for super earthquake intensity geological process |
| CN108729571B (en) * | 2018-08-01 | 2019-02-26 | 山东大学 | A kind of magnetorheological energy damper of piezoelectricity of half active |
-
2019
- 2019-07-12 CN CN201910633393.2A patent/CN110424250B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58144221A (en) * | 1982-02-19 | 1983-08-27 | Mitsubishi Electric Corp | Vibration controller |
| JPH108771A (en) * | 1996-06-21 | 1998-01-13 | Mitsubishi Steel Mfg Co Ltd | Damper for building |
| CN1275448A (en) * | 1999-05-26 | 2000-12-06 | 神钢电机株式会社 | Vibration-damper for steel sheet |
| JP2005009211A (en) * | 2003-06-20 | 2005-01-13 | Ohbayashi Corp | Structure supporting structure |
| JP2005083090A (en) * | 2003-09-09 | 2005-03-31 | Tokai Univ | Prop type damping device |
| CN1588586A (en) * | 2004-09-14 | 2005-03-02 | 北京理工大学 | Repul sive force type electromagnetic shift executing system |
| JP5201946B2 (en) * | 2007-11-07 | 2013-06-05 | 中国電力株式会社 | Overhead traveling crane |
| JP2009180628A (en) * | 2008-01-31 | 2009-08-13 | Biikku Kk | Building diagnostic device |
| CN105507135A (en) * | 2016-01-29 | 2016-04-20 | 石家庄铁道大学 | Seismic isolation control method having anti-girder-falling and anti-collision functions and seismic isolation control structure |
| CN105544380A (en) * | 2016-01-29 | 2016-05-04 | 石家庄铁道大学 | Seismic-mitigation-and-isolation control method and structure with self-reset function |
| CN206267580U (en) * | 2016-12-01 | 2017-06-20 | 陕西长恨歌演艺文化有限公司 | A kind of flexible grandstand automatic deviation rectifying device |
| CN107101588A (en) * | 2017-04-26 | 2017-08-29 | 东南大学 | A kind of long-life high-performance bridge expansion joint installation |
| CN107084218A (en) * | 2017-05-05 | 2017-08-22 | 东南大学 | A kind of adaptive controllable electromagnetic damper |
| CN108385510A (en) * | 2018-02-09 | 2018-08-10 | 石家庄铁道大学 | A kind of electromagnetic type bridge earthquake resistance anti-fall girder apparatus |
Non-Patent Citations (1)
| Title |
|---|
| 相邻结构地震反应的半主动控制分析;杨佑发等;《工业建筑》;20110420(第04期) * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110424250A (en) | 2019-11-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20170011842A1 (en) | Variable magnetic coupling reactor having two integrated reactor elements, power supply system including the same, and method of use of composite magnetic component having two integrated reactor elements | |
| US6408987B2 (en) | Elevator guidance device | |
| CN110424250B (en) | System for actively preventing concrete beam from colliding and using method thereof | |
| CN110761430B (en) | Coupling beam damper based on magnetorheological elastomer material | |
| FR2772294B1 (en) | ELECTROMAGNETIC BRAKING EQUIPMENT OF A MOLTEN METAL IN A CONTINUOUS CASTING SYSTEM | |
| EP3835110A1 (en) | Suspended rail transport device and magnetic-electric hybrid suspension rail system thereof | |
| CN101814821A (en) | Hybrid excitation structure | |
| CN111810583B (en) | Electromechanical device fixing frame and mounting method thereof | |
| CN102556102A (en) | Electromagnetic magnetic rail brake and control method thereof | |
| CN107142832B (en) | A kind of construction method of arc steel box-girder | |
| US5140208A (en) | Self-adjusting magnetic guidance system for levitated vehicle guideway | |
| CN110761180A (en) | Intelligent pier and construction method thereof | |
| CN102296751B (en) | Prestressing anti-fatigue girder | |
| CN201458544U (en) | Carrying pole for mounting component | |
| CN110424249B (en) | System for actively preventing concrete beam from falling and using method thereof | |
| CN1046907C (en) | Magnetomotive tansport equipment | |
| CN216662210U (en) | Truss type lifting frame suitable for power distribution room module | |
| CN215160350U (en) | Self-lifting mechanism for door slot construction device and door slot construction system | |
| CN109778717A (en) | A kind of passive method of adjustment of the mechanical state of cantilever beam | |
| CN110106777B (en) | Magnetic pole buffer type communicating inhaul cable damping limiter | |
| CN202390978U (en) | Self-centering prestressed concrete frame floor slab structure | |
| CN210177350U (en) | Magnetic pole buffering type communicated inhaul cable damping limiter | |
| CN203782969U (en) | Magnetic-suspension shockproof floor steel truss | |
| CN112681113B (en) | Multifunctional adjustable bridge electromagnetic damper and bridge | |
| CN214531257U (en) | Self-resetting device with adjustable transverse rigidity and energy consumption capability |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |