128 results about "Aftershock" patented technology

The present invention discloses a method for overall exploration of a mature exploration area of oil-rich sags, the method including the following steps: building an area-wide seismic sequence framework for a study area based on uniform 3D seismic data of the study area; determining the spatial distribution characteristics of sedimentary reservoirs in the study area by sequence based on the area-wide seismic sequence framework; grading source rocks in the study area by sequence based on the area-wide seismic sequence framework: counting the spatial distribution characteristics of caprocks in the study area; determining a transporting system for the study area based on the unified 3D seismic data of the study area; classifying potential trap areas in the study area based on the spatial distribution characteristics of the sedimentary reservoirs and the spatial distribution characteristics of the caprocks; and deploying the overall exploration of the study area based on the classification of the potential trap areas, grading of the source rocks and the transporting system of the study area.

The invention relates to a bump seismic origin device used for the seismic exploration in the shallow layer of water areas by the sound wave of a pneumatic machine, which comprises a supporting body and a pneumatic hammer on the motherboard of the supporting body, wherein, the pneumatic hammer is connected with an air compressor by an air delivering pipe; the pneumatic hammer comprises an outer shell body and a hammer head arranged in the cavity of the shell body; the lower side of the hammer head is connected with a return spring; the upper part of the hammer head is fixedly provided with a magnet; a working air chamber connected with the air delivering pipe and a magnetic substrate used for producing upward suction force for the magnet are arranged above the hammer head; the air delivering pipe is connected with a three-way electromagnetic switch valve used for controlling the air intake to the working air chamber of the pneumatic hammer or controlling the air in the working air chamber of the pneumatic hammer to be discharged outside in series; the three-way electromagnetic switch valve is connected with a control box; the motherboard of the supporting body is made of sheet metals at least at the area used for arranging the pneumatic hammer. The bump seismic origin device not only has the seismic origin of wide frequency band of good properties, fast aftershock reduction, proper energy and pulse of good properties, but also is beneficial to ocean ecology and environmental protection.

The invention discloses an aftershock energy control-based method for reducing working blind areas of an ultrasonic energy transducer. The ultrasonic energy transducer can be equivalent to an inductance-resistance-capacitance oscillating circuit, a method that inductance-capacitance devices are connected in series with, in parallel with or in series and parallel with two ends of the ultrasonic energy transducer is adopted to be capable of improving the inductance-capacitance parameters of a working circuit of the ultrasonic energy transducer, thus being capable of improving the freely-degenerative oscillating frequency of the ultrasonic energy transducer, realizing accelerated consumption of the aftershock energy, and reducing the working blind areas of the ultrasonic energy transducer. The method can realize control on the consumption speed of the aftershock energy of the ultrasonic energy transducer, reduce the working blind areas of the ultrasonic energy transducer, and broaden the measurable acoustic path range of ultrasonic wave applied in detection on flow rate or objection detection.

The invention belongs to the field of earthquake alarming equipment, and in particular relates to a water optical shock sensor, an earthquake alarming system consisting of a sensor matrix and an alarming method. Light rays emitted from a laser generator of the sensor are reflected by a water surface, the reflected light rays irradiate photoelectric tubes and then optical signals are transmitted to a circuit module by the photoelectric tubes for processing. A plurality of shock sensors, together with an information analysis module, form the earthquake alarming system. The earthquake alarming system has the characteristics of relatively higher sensitivity, relatively lower cost, high reliability, the capacity of timely and accurately giving an alarm for an earthquake, high anti-interference capacity, and simple, light and convenient structure, is particularly applied to the alarming for aftershocks, mainly serves households, buildings, schools, enterprises or a certain town, and is applied to the timely alarming in middle and primary schools in earthquake-prone regions.

The invention discloses an obstacle detection method for a snow sweeping robot. The obstacle detection method comprises the following steps: (1) a left ultrasonic transducer, an intermediate ultrasonic transducer and a right ultrasonic transducer are arranged on the snow sweeping robot, and information of the distance between the snow sweeping robot and an obstacle is detected through the ultrasonic transducers; and (2) detection signals are processed: a, aftershock interference signals of probes of the ultrasonic transducers are processed; and b, suddenly generated strong interference signals are processed. The obstacle detection method for the snow sweeping robot can effectively inhibit influences from interference signals generated by mechanical vibration of the transducers per se, can also identify quickly moving objects and avoid false alarms probably generated by single measurement, and is good in interference prevention and high in detection accuracy. Meanwhile, in the snow sweeping process in different environments, the actual wind direction and the snow softness degree probably cause difference of such parameters as the robot running speed. The threshold value and the measurement times can be flexibly set through field tests, the demands for the accuracy and the sensitiveness of obstacle detection in different environments can be met and the adaptability is excellent.

The invention provides an earthquake data recording and analyzing system based on mobile phone earthquake monitoring network and belongs to the field of earthquake monitoring. The earthquake data recording and analyzing system comprises an earthquake monitoring network server and mobile phone user terminals. Mass measuring nodes of the earthquake monitoring network constituted by multiple mobile phone user terminals are densely distributed at random. By utilization of the characteristics of low cost and random widely distribution of mobile phones, the measured data that shocking and terrestrial magnetism of each location continuously changes along with time before, during and after the earthquake can be easily obtained, especially the whole-process earthquake data of the crucial earthquake monitoring points or other adjacent places. The construction cost of the earthquake monitoring network can be greatly reduced, and the monitoring nodes are densely distributed, relatively even and wide in covering surface. Therefore, The earthquake data recording and analyzing system based on the mobile phone earthquake monitoring network can effectively solve the problems that the early-warning data, the post-earthquake data and the aftershock data of professional seismic stations are not sufficient, and lays the foundation for the big data research and analysis of the earthquake properties and early warning.

The invention provides a Copula theory-based main shock and aftershock joint vulnerability analysis method. The method comprises the following steps of: selecting main shock and aftershock seismic records to form main shock and aftershock sequence seismic oscillations; establishing a numerical value finite element analysis model of a structure; inputting the main shock and aftershock sequence seismic oscillations to carry out dynamic and time-historical analysis, selecting maximum deformation and residual deformation as seismic demand parameters, and establishing a probability demand model, under the action of the main shock and aftershock sequence seismic oscillations, of the structure on the basis of a distribution strip method; establishing a joint probability seismic demand model, based on the maximum deformation and the residual deformation, of the structure on the basis of a Copula theory; establishing a main shock and aftershock joint vulnerability function of the structure; andgenerating a main shock and aftershock vulnerability hook face of the structure by adoption of a Monte Carlo simulation method. According to the method, continuous influences, on the structure, of the main shock and the aftershock are considered, and a main shock and aftershock vulnerability analysis result on the basis of the maximum deformation of the structure and a main shock and aftershock vulnerability analysis result on the basis of the residual deformation of the structure are combined by utilizing the Copula theory, so that the safety, under the action of the main shock and aftershock sequence seismic oscillations, of the structure can be comprehensively and quantitatively evaluated.

The invention relates to a main shock-aftershock sequence-based method for estimating a damage index, and aims at solving the problem that influence of an aftershock to a structure is ignored due to the fact that only single action of a main shock is considered in an existing method for estimating an earthquake damage index. The main shock-aftershock sequence-based method disclosed by the invention comprises the following steps: I: selecting a structural hysteresis model according to an actual earthquake motion type; II: selecting a period, mass and damping of a single-degree-of-freedom structure, and calculating a structural dynamic characteristic; III: performing elastic analysis on selected earthquake motion and the structural characteristic to obtain an elastic strength demand Fe; IV: selecting a strength reduction factor value R, and working out yield strength Fy of an inelastic structure; V: working out a reaction of the structure under action of an earthquake according to a structural dynamic method, and working out the damage index DI according to a damage calculation formula; VI: presenting a damage spectrum prediction model of a main shock-aftershock sequence according to a statistical result of the structural damage index DI. The main shock-aftershock sequence-based method for estimating the damage index disclosed by the invention can be applied to the field of earthquake engineering.

The invention relates to the technical field of damping supports, and particularly relates to a bidirectional rolling shaft multi-stage damping support. The problems that in the prior art, a lead coredamping support has difficulty in recovering deformation when a lead core is thick, internal damping distribution is nonuniform, and the damping effect cannot continue to be played in aftershock aresolved. The bidirectional rolling shaft multi-stage damping support comprises a first damping rolling shaft, a second damping rolling shaft, a lead core supporting column, a first connecting plate, asecond connecting plate and a third connecting plate, the lead core supporting column, the first damping rolling shaft and the second damping rolling shaft are arranged in a mounting space formed by the first connecting plate, the second connecting plate and the third connecting plate separately, when the lead core supporting column support fails, the first damping rolling shaft and the second damping rolling shaft roll to support the first connecting plate and the second connecting plate, when the support is used, the lead core supporting column absorbs energy generated by an earthquake firstto perform first-stage damping energy consumption, and in the aftershock, the first damping rolling shaft and the second damping rolling shaft perform second-stage damping energy consumption.

The invention belongs to the field of ultrasonic flow detection and particularly relates to a method of detecting the state of an ultrasonic flowmeter. According to the method, aftershock generated by a piezoceramic plate of an ultrasonic transducer after an exciting signal stops acting imparts after-wave to the exciting signal, transducer faults can be judged or troubleshot quickly just by subjecting the flowmeter to circuit detection in the tube emptiness or fault state, the tube emptiness state or fault causes are further ensured, and the maintenance process of the ultrasonic flowmeter is greatly simplified.

The invention relates to the technical field of bridge detection monitoring, in particular to a bridge state detection device and detection method. The bridge state detection device comprises an acquisition device, a communication unit and a monitoring unit and is used for receiving acquired data and forming a judging result according to the acquired data. Compared with the prior art, the bridge state detection device and detection method has the advantages that under an aftershock state after load passes through a bridge, the torsional vibration frequency of each plate beam is acquired according to the accelerated speed in the horizontal direction, the fact that the torsional vibration frequency of each plate beam is close to the torsional vibration frequency of each plate beam under an independent stressing state is judged through the monitoring unit, and the facts that a damage phenomenon occurs in a hinged gap and force transfer can not be achieved are judged according to the fact that the torsional vibration frequency of each plate beam is close to the torsional vibration frequency of each plate beam under the independent stressing state. By adopting the method, the traffic closing condition is not needed, the stress state of the hinged gap can be measured in real time, and then the transverse connection state of the plate beams can be obtained in real time.

The invention provides a car reversing radar system with low aftershock and a method for emitting the signal of the car reversing radar with low aftershock, which comprises a receiving and emitting sensing unit, an ultrasonic emitting circuit, an ultrasonic receiving circuit, a processing unit, an alarming unit and a storage unit, wherein, the receiving and emitting sensing unit comprises at least one piezoelectric ceramic piece; the processing unit can emit a control signal and a pulsing signal, wherein, the control signal has continuous positive and negative amplitude phases, and the initial amplitude of the pulsing signal has the same phase as the end amplitude of the control signal, which causes the receiving and emitting sensing unit to output an ultrasonic signal with low aftershock.

The invention discloses an intelligent dual-probe iron shoe with a precise detection function. The intelligent dual-probe iron shoe with the precise detection function comprises a shoe body, a detection module, a wireless communication module, a control module and a battery, wherein the detection module, the wireless communication module, the control module and the battery are arranged on the shoe body. The shoe body comprises a bottom part and a head part; and the detection module comprises an emitting probe and a receiving probe. The emitting probe is used for emitting a detecting signal used for detecting a target object; the receiving probe is used for receiving the detecting signal reflected by the target object; and the detecting signal is sent to a monitoring terminal through the wireless communication module after being processed by the control module. According to the intelligent dual-probe iron shoe with the precise detection function, the emitting probe and the receiving probe are arranged, detecting signals are sent out by the emitting probe continuously and reflected to the receiving probe by a train, the emitting probe is not affected by aftershock, detecting dead zones are greatly decreased, the detecting precision is improved, the position of the train can be better detected, the purpose of preventing slip of the train is achieved, and the problem that the labor intensity of workers is intensified due to false detection of the intelligent iron shoe is avoided.

The invention relates to a sensor, in particular to a novel ultrasonic wave sensor which comprises a hollow metal outer case. One end of the metal outer case is covered by a matching layer in a sealing mode. The inner side of the matching layer is provided with piezoelectric bimorphs in parallel in a pasted mode. The piezoelectric bimorphs in parallel are formed in the mode that the two opposite electrode faces of the two piezoelectric bimorphs are respectively pasted on two faces of a metal substrate, the other two electrode faces of the two piezoelectric bimorphs are electrically connected, and a common connecting end of the two piezoelectric bimorphs and the metal substrate are respectively connected with a connecting terminal. The novel ultrasonic wave sensor is simple in structure, high in sensitivity, and small in aftershock.

The invention provides a method and a system for realizing visualization of an aftershock fault structure. Acquired aftershock point cloud data is converted into a three-dimensional view point cloud,and the three-dimensional view point cloud is projected to a plane perpendicular to a fault to obtain a two-dimensional plane projection image; a plurality of points with linear features in the two-dimensional plane projection image are selected out, a fault plane is fitted out according to the selected points with the linear features, and the fault structure is positioned according to the fittedfault plane; and the positioned fault structure is input into a three-dimensional view to obtain a visual image of the three-dimensional fault. According to the method and the system provided by the invention, the aftershock point cloud data is converted into the visual image, so that the fault structure of an earthquake can be accurately presented, the space-time process of aftershocks can be reproduced, and technical support is provided for research personnel in earthquake mechanism recognition and earthquake risk assessment.

The invention discloses a special shock-absorbing supporting device for a pipeline elbow. The device comprises a sleeve and a vertically-arranged stand column; the sleeve is fixedly mounted on the ground and has an upward opening; one end of the stand column is fixedly connected below the elbow; a flange shock-absorbing device is arranged in the middle of the stand column; the bottom end of the stand column is inserted in the sleeve and is in clearance fit with the sleeve; and a rubber shock-absorbing pad is arranged at the bottom of the sleeve. With the special shock-absorbing supporting device for the pipeline elbow, the flange shock-absorbing device is arranged in the middle of the stand column for first-time shock absorption, shocks of the pipeline elbow above are received, aftershock fluctuations are continuously downwards transferred, repeated vertical and transverse shock absorption is realized through second-time shock absorption by the aid of clearance fitting between the stand column and the sleeve and third-time shock absorption by the aid of the rubber shock-absorbing pad at the bottom of the sleeve, the good shock absorbing effect is realized, and the device is applied to the field of shock-absorbing devices.

The invention discloses new controlling method for the sensibility and residual vibration of an ultrasonic sensor. The sensibility and residual vibration are precisely controlled by changing the pre stress of a piezoelectric chip. A novel ultrasonic sensor is provided, which essentially comprises a metallic casing, a piezoelectric chip, a circuit board, a lead-out pin, a pressure block for controlling the stress of the piezoelectric chip, a silencing cotton layer for absorbing the residual vibration of the sensor, and a silica gel filler. In the circuit board, a threaded through hole is provided. In the through hole, an adjuster is provided. The lower end of the adjuster is movably connected with the upper end of the pressure block. The invention can accurately control the sensibility and residual vibration of a product by simply changing the production equipment and without changing the raw materials, so that the product can meet requirements from different customers, and the applicability and the acceptance rate of product can be improved. The invention saves cost, improves productivity, and the most important benefit with the invention is that the performance consistency of the adjusted product is almost up to 100%.

The invention discloses a seismic wave first arrival picking method and system. The method comprises the steps of obtaining a seismic record sequence of a reference seismic trace containing a first arrival wave to obtain the reference seismic sequence; obtaining a seismic trace to be detected; utilizing a slide window to divide the seismic trace to be detected into multiple seismic record sequences to obtain multiple seismic sequences to be detected; calculating the mutual information amount between each seismic sequence to be detected and the reference earthquake sequence; screening the seismic sequence to be detected corresponding to a maximum value in the mutual information amount to obtain the seismic sequence containing the first arrival; according to the time interval of the seismicsequence containing the first arrival and the reference seismic sequence, calculating the moment containing the first arrival seismic sequence to obtain the seismic wave first interval. By means of the method and system, noise interference can be avoided, and the accuracy of picking the first arrival is improved.

The invention discloses a thin bed identification method of seismic prospecting, and belongs to the field of oil-gas geophysical prospecting engineering. The method comprises the following steps that (1) Hilbert transform is carried out on a seismic post-stack signal to obtain an instant phase of the seismic post-stack signal; (2) a time-phase relation diagram of the seismic post-stack signal is obtained according to the instant phase; (3) wavelet transform is carried out on the basis of the time-phase relation diagram of the seismic post-stack signal to obtain a time-scale relation diagram; (4) an abnormal point is extracted on the basis of the time-scale relation diagram; and (5) information of a reflected wave signal is obtained on the basis of the abnormal point. According to the method provided by the invention, seismic phase data can be re-explained by utilizing Hilbert transform on the basis of a phase criterion, further a position identification research can be carried out, the thin bed identification capability can be improved effectively, and interference of aftershock in a result can be eliminated to certain extent.

The invention discloses a rescue aircraft task allocation method (TLP) based on a two-stage planning algorithm in earthquake rescue. The method comprises an earthquake rescue simulator and a two-stage planning rescue algorithm (TLP). The earthquake rescue simulator simulates the conditions of affected people in a ground medical area and an affected area in an earthquake. Task distribution of the rescue aircraft is optimized online through the TLP algorithm, and the optimization comprises three parts of rescue task level planning, rescue aircraft level planning and rescue aircraft position distribution. The first part is used for completing clustering of rescue tasks and task distribution of rescue aircrafts. The second part is used for carrying out rescue target sequence planning on each task group and the corresponding rescue aircraft group based on a particle swarm algorithm, and the third part is used for carrying out position distribution on each rescue aircraft after the tasks are completed, so that rescue work in the next rescue period is conveniently carried out. The TLP algorithm maximizes the total number of successfully rescued people under the condition that the occurrence of earthquakes and aftershocks has randomness and unpredictability, and the rescue effect is improved.

The invention relates to a portable on-site aftershock alarm device for earthquake salvation, which mainly comprises a pendulum bob spike shaft, a pendulum bob, and an inverse ratio rod, a fixed ring contact and an alarm circuit that are arranged on a pendulum shaft and the like. The swinging of the inverse ratio rod of the pendulum bob leads the inverse ratio rod and the peripheral fixed contacts to generate collision, which is taken as alarm reference, so as to achieve that the alarm for aftershock is sent automatically, and the invention belongs to the closing type automatic alarm technology of a swinging trigger circuit. When the pendulum bob is static, the alarm device does not give the alarm, and in the state, the second falling of the collapsed buildings ruins does not happen without foundation; and if the pendulum bob starts to swing and the alarm device to give the alarm, the swinging of the ground surface represents the premonitor of the aftershock or the coming of small aftershock. The alarm device is suitable for being carried owing to the small size and can be more suitable for being matched to use on the site of earthquake salvation as a direct current battery is used as well as the alarm device can be arranged on the collapsed and flat ruins after earthquake or in the gap near the ruins and can automatically and continuously give the alarm by a plurality of times without manual operation during the process.

The invention discloses a seismic intensity rapid correction and drawing method. The method comprises the following steps: generating an initially evaluated seismic intensity thematic map; generatinga primarily corrected seismic intensity thematic map; obtaining the range of the meizoseismal region and the long-axis trend of the intensity circle; establishing an envelope line; obtaining a highestintensity circle; obtaining a seismic intensity dynamic correction result; generating a dynamically corrected seismic intensity thematic map; and generating a final seismic intensity thematic map. According to the invention, automatic generation of the seismic intensity thematic map is realized; multi-source disaster data is fully applied; preliminary correction is performed on the intensity circle through a data fusion technology; the influence of aftershocks and the like on the intensity circle is fully considered, and meanwhile, the intensity circle is further dynamically corrected throughthe self-adaptive technology; the automation degree is very high, manpower and material resources can be greatly reduced while the reliability of the intensity circle is improved, and the efficiencyis very high; and the earthquake intensity thematic map can be rapidly generated after an earthquake happens.

The invention relates to the technical field of damping supports, in particular to a sliding ball multi-stage damping support. The problems that in the prior art, according to a lead core damping support, deformation recovery is hard when a lead core is thick and large, internal damping distribution is not uniform, and the damping effect cannot continue to be brought into play when an aftershock happens are solved. The sliding ball multi-stage damping support comprises damping balls, a lead core supporting column, and a first connecting plate and a second connecting plate which are arranged from bottom to top in a spaced mode, and an installing space is formed between the first connecting plate and the second connecting plate, the lead core supporting column supports the first connecting plate and the second connecting plate, and the damping balls are arranged inside the installing space for supporting the first connecting plate in a rolling mode when supporting of the lead core supporting column loses efficacy. When the support is in use, the lead core supporting column absorbs energy generated by an earthquake at first for primary damping and energy dissipation, when the lead core supporting column loses efficacy, the damping balls drive the first connecting plate and the second connecting plate to slide horizontally in a staggered mode, energy generated by aftershocks is absorbed, and secondary damping energy dissipation can be performed.

The invention provides a silicon foaming adhesive composition, by taking the total mass of the silicon foaming adhesive composition as a reference, the silicon foaming adhesive composition has the following ingredients: 50-75% of polydimethylsiloxane, 15-40% of dimethicone, 5-20% of silica micropowder, 0.5-2% of silicone resin, 1-10% of coupling agent, 0.5-3% of 4,4'-oxydibenzenesulfonyl hydrazide, 0.5-3% of crystalline hydrate. The invention also provides a preparation method of the silicon foaming adhesive composition, a silicon foaming adhesive prepared by the silicon foaming adhesive composition and an ultrasonic sensor containing the silicon foaming adhesive. The silicon foaming adhesive has large porosity and uniform aperture distribution, the ultrasonic sensor by using the silicon foaming adhesive has the advantages of small aftershock and low impedance.

The invention discloses a method and a device for detecting an obstacle. The method comprises the following steps: monitoring an aftershock time, comparing the aftershock time with a preset time threshold value, determining whether the obstacle exists in a short distance or not, sequentially transmitting two ultrasonic waves with opposite vibration directions, judging whether an echo signal is received or not, accurately calculating a distance between the obstacle and an ultrasonic sensor according to the echo signal if the echo signal is received, and determining that the obstacle is very close to the ultrasonic sensor and is located in a very small detection blind area if not. The obstacle in the area close to the ultrasonic sensor can be accurately detected, so it is ensured that a parking system can accurately detect the obstacle close to a vehicle, thereby intelligent parking is achieved, and the method and the device are of great significance to reducing traffic accidents and protecting life safety.

The invention relates to a phase-criterion-based identification and extraction method of a physical detection echo signal. The method comprises: (1), carrying out Hilbert transform on an echo signal to obtain a corresponding parsing signal; (2), according to corresponding parsing, obtaining an instantaneous value of a phase theta (t); (3), carrying out phase compensation on instantaneous phase information of the signal and extracting preliminary abnormity; and (4), carrying out wavelet transform on a signal extracted by the preliminary abnormity and extracting abnormal information in an original waveform accurately. According to the method provided by the invention, echo information from the deep place of the stratum can be picked up accurately under the condition of the same source energy. Moreover, echo information of a weak reflection layer can be extracted accurately and echo information of the top surface and bottom surface of the thin layer can be separated and extracted accurately. Meanwhile, the aftershock can be suppressed effectively and the multiple influence can be reduced.

The invention discloses a method for simulation of the scope of aftershocks, and the method comprises the steps of establishing a coordinate system with the aftershock point longitude as an X axis, the aftershock point latitude as a Y axis and the aftershock point magnitude as a Z axis; taking a plane of the X axis and the Y axis as a projection plane, and transforming the coordinate system into a projection coordinate system; obtaining a relationship mode of the distance among aftershock points through fitting by using a correlation analysis method of point pattern analysis, decomposing the relationship mode into different scale-free intervals in which a numerical value is less than a numerical value of the next adjacent scale-free interval; performing nuclear density simulation analysis of points in the scale-free intervals, and obtaining corresponding pattern layers to the scale-free intervals respectively; determining a shielding content between adjacent pattern layers Li and Li+1, removing the corresponding shielding content of the Li+1, then combining the Li and the Li+1, processing all the pattern layers in sequence, and outputting a pattern layer Ri after the combination. The invention can quickly evaluate the scope of the aftershocks based on point data of aftershocks released publicly.

A device for avoiding aftershock damage in earthquake relief is characterized in that sleeve rings A are fixedly connected to two ends of a joint lever, wherein the joint lever is connected to a connecting rod through the sleeve rings at two end; a sleeve ring B sleeves each connecting rod; a branched pipe is fixedly connected to each sleeve ring B; a clamping pipe is inserted into each branched pipe; one end of each clamping pipe is inserted into the corresponding branched pipe; the other end of one branched pipe is provided with a lug, and the other end of another branched pipe is provided with a through hole; the other end of each clamping pipe is connected though a bolt; a handle is arranged on each bolt; three rows of sawteeth are arranged on the outer walls of the clamping pipes; three grooves in which clamping blocks are movably clamped are arranged at upper openings of the branched pipes; an extending plate is arranged at one end of each clamping block; three clamping bucklingswitches are arranged at the outer parts of the branched pipes; the bottom part of each clamping buckle switch is arranged in the corresponding branched pipe and is connected to the extending plate ofthe corresponding clamping bock through a spring. According to the device, the structure is subjected to irreversible stretching; the device is safe, and easy to operate.

The invention discloses a prefabricated assembly-type seismic toughness reinforced concrete frame structure and a construction method. The frame structure is constructed on the basis of concrete and comprises a reinforced concrete column, an anchor rod, a reinforced concrete beam, a pull rod and a damper. According to the prefabricated assembly-type seismic toughness reinforced concrete frame structure, a hole is formed in each of the reinforced concrete column and the reinforced concrete beam, a disc spring group is installed in each hole, the disc spring groups are fixedly connected with beam and column joints through the pull rod and fixedly connected with column and foundation joints through the anchor bolt, densified stirrups or spiral stirrups or exterior steel plates are arranged atthe ends of the reinforced concrete beam and the reinforced concrete column correspondingly, the damper is arranged on the lower side of the beam end, the periphery of the gaps of reserved grooves ofthe reinforced concrete column and a concrete foundation is filled with an elastic scalable material, the ductility of the seismic toughness frame structure is high, the aftershock residual displacement is low, an aftershock main structure basically keeps elastic, and the prefabricated assembly-type seismic toughness reinforced concrete frame structure can be widely used in building structures.