90 results about "Earthquake intensity" patented technology

The invention discloses an optical terminal intensity instrument and an earthquake monitoring service system and method, and the optical terminal intensity instrument comprises an optical fiber modem and an MEMS sensor module. The optical fiber modem comprises an MCU (Microprogrammed Control Unit) and an optical communication module electrically connected with the MCU; the optical communication module is used for realizing network access and data uploading; the MEMS sensor module is electrically connected with the MCU; the MEMS sensor module is used for collecting seismic intensity data in real time; and the optical fiber modem is used for providing a dual data transmission channel comprising broadband communication and the seismic intensity data. According to the technical scheme provided by the invention, the MEMS sensor is embedded in the optical fiber modem, and a more dense, more efficient and more economical solution is provided for earthquake early warning and intensity rapid reporting.

The invention belongs to the technical field of mine safety and engineering earthquake monitoring, and particularly relates to a mine earthquake earth surface vibration intensity prediction method and system based on an improved sine and cosine algorithm, and the method comprises the steps: firstly constructing a mine earthquake intensity prediction model containing geometric attenuation, inelastic attenuation and an earthquake source energy item, and then constructing a target function based on measured data, and optimizing model parameters by adopting an improved sine and cosine algorithm. The algorithm improvement comprises the following steps: adaptively adjusting a search step size through a dynamic amplitude exponential decay strategy, and balancing global exploration and local development capabilities; and a periodic random restart mechanism is introduced, and the position of the individual with the worst fitness is reset to avoid premature convergence. Through the combination of the physical model and the intelligent optimization algorithm, the problems of fixed function form and low parameter optimization efficiency of the traditional empirical model are solved, and high-precision prediction of the mining induced earthquake surface vibration intensity is realized.

The invention relates to an earthquake intensity field disaster situation acquisition system, and discloses an earthquake intensity field disaster situation acquisition system, which comprises the following modules: an unmanned aerial vehicle hardware platform, a disaster situation data acquisition module, an intelligent disaster situation analysis module, a disaster situation prediction and decision support module and a disaster situation return and dynamic response module. The unmanned aerial vehicle carries a high-definition camera, a thermal imager, a laser radar sensor and a meteorological sensor, collects image data, thermal imaging data, three-dimensional point cloud data and meteorological data of a disaster area in real time, and carries out disaster identification and evaluation through a deep convolutional neural network. In combination with multi-sensor data, the system can automatically identify disaster information such as building damage degree, fire areas, casualties and the like, intelligently optimizes resource allocation according to disaster assessment results, and ensures that rescue resources can be timely and accurately allocated to most required places of disaster areas.

The invention discloses an intelligent anti-seismic structure optimization design method and system for a high-rise building, and relates to the technical field of anti-seismic design of the high-rise building. A working condition database considering multidirectional seismic oscillation and soil-structure interaction is established in combination with seismic oscillation time history and site investigation parameters; constructing a structure model on the BIM platform, and importing frequency characteristics and load to generate a preliminary design; an inter-story displacement angle, a story acceleration, a plastic rotation angle and an energy dissipation ratio index are set in the model, an anti-seismic performance comprehensive function is constructed, constraints are set according to a standard limit value, the structure model is converted into an optimizable problem, and optimal design is achieved by iteratively calling a working condition database and automatically correcting key component parameters and damping arrangement. According to the method disclosed by the invention, the structural optimization design of the high-rise building under the multidirectional earthquake action is realized by establishing an earthquake working condition database and parameterizing structural modeling and performance function constraint.

The invention provides a railroad bridge intelligent seismic mitigation and isolation system, and relates to the technical field of railroad bridge engineering, the railroad bridge intelligent seismic mitigation and isolation system comprises a seismic mitigation support arranged on a bridge, the seismic mitigation support comprises a first seat body, a second seat body, a third seat body, a fourth seat body, a first limiting assembly and a second limiting assembly, the first seat body is slidably connected with the second seat body, and the second seat body is slidably connected with the third seat body; the fourth seat body is connected between the second seat body and the third seat body in a sliding mode, the first limiting assembly limits relative displacement of the first seat body and the second seat body, and the second limiting assembly limits relative displacement of the second seat body and the third seat body. The first limiting assembly and the second limiting assembly cut off and release the displacement constraint under different earthquake intensities, graded damping is achieved in combination with the multi-direction sliding structure, the displacement constraint can be released in a graded mode according to the earthquake intensities, and track structure safety and bridge main body structure protection are effectively balanced.

The invention relates to the technical field of rail bridge engineering, and particularly discloses a rail-bridge system residual traffic capacity assessment method, medium and equipment, and the assessment method comprises the steps: constructing a rail-bridge system seismic response model and a train-rail-bridge system coupling vibration model of a research object; constructing an earthquake-induced irregularity sample library; establishing a simplified calculation model of the shock-actuated irregularity equivalent coefficient; performing curved surface fitting to obtain a shock-induced composite unsmooth fitting curved surface; putting forward earthquake-induced irregularity thresholds in different driving performance index states, and establishing a linear mapping relation between the earthquake-induced irregularity thresholds and the driving speed; and establishing a mapping relationship among the seismic oscillation intensity, the structure natural vibration period and the post-earthquake driving speed limit value in different driving performance index states, and outputting a residual traffic capacity evaluation result according to the post-earthquake driving speed limit value. According to the method, the problem that in an existing method, the quantitative mapping relation between the current rail surface irregularity after the earthquake and the train operation performance is not clear is effectively solved.

The invention discloses a rail transit bridge shock resistance toughness grading evaluation standard construction method. The method comprises the following steps: determining post-earthquake function target requirements under different seismic levels; carrying out earthquake vulnerability and function vulnerability analysis, and determining structural damage levels and post-earthquake residual functions under different earthquake intensities; determining a component repairing procedure and a repairing path of the rail transit bridge system, calculating to obtain a repairing work amount and a component repairing period, and obtaining a repairing period of the rail transit bridge system; analyzing to obtain a passing function in the repairing process; drawing a stepped function recovery function and calculating to obtain a toughness index; calculating the number of effective influence days of different damage levels under different seismic intensities; and establishing a relationship between damage grades and effective influence days, determining an effective influence day range of different damage degree grades, and obtaining an anti-seismic toughness grading evaluation standard. According to the method, the number and calculation amount of bridge samples are reduced, the post-earthquake function recovery condition is accurately reflected, and the method is used for guiding earthquake fortification of the bridge.

The invention relates to the technical field of power system operation and control, in particular to a power system recovery capability evaluation method, device and equipment considering unconventional risks and a medium, and the method comprises the steps: determining parameters for calculating the occurrence probability of earthquake disasters of different earthquake magnitudes; calculating intensity distribution by using an earthquake intensity diffusion model; calculating transmission tower and transmission line fault probabilities to obtain a fault line set; according to the operation power flow and the maximum allowable power flow, the cascading failure situation is divided into high risk and low risk; aiming at the two conditions, respectively enumerating a first-order fault state set and a second-order fault state set to obtain a system recovery capability initial value; the value serves as input, a convergence threshold value is set, a ULBI-IISE algorithm is adopted for iterative calculation, when the difference value of the upper cut set and the lower complementary set is smaller than the threshold value, the recovery capacity and the interval are output, and the method reduces high-order fault complete enumeration and the calculation amount while guaranteeing the precision, and is suitable for rapid evaluation of emergency scenes such as earthquakes.

The invention discloses a construction method of a shale gas exploitation area seismic oscillation parameter prediction model, and belongs to the technical field of seismic safety evaluation. Comprising the following steps of: by supplementing seismic line data such as existing destructive earthquakes and adopting a long and short axis seismic intensity joint attenuation relation model, performing regression to obtain an intensity attenuation relation of a moderate-intensity region; based on an NGA-West2 strong earthquake database, screening bedrock records of a free site of the reference area, and establishing an earthquake motion parameter prediction equation based on the hypo-central distance; then, converting the reference region prediction equation into a hypo-central distance prediction equation suitable for a moderately strong region through an intensity mapping method; and utilizing broadband speed records around the shale gas exploitation area, and adopting a step-by-step regression method to correct the magnitude item to obtain a corrected seismic oscillation prediction equation. According to the method, the adaptability of shallow source induced earthquakes is remarkably improved, the lower limit of the earthquake magnitude is expanded to 4.0, the regional characteristics are fully considered, and the method is suitable for earthquake safety evaluation of the southern Sichuan shale gas exploitation area.

The invention provides a seismic intensity field prediction method and system and electronic equipment, and the method comprises the steps: obtaining the seismic data of each station according to the triggering sequence of each station, determining the resultant acceleration sequence and the resultant speed sequence of each station according to the seismic data of each station, and obtaining the seismic intensity field of each station according to the resultant acceleration sequence and the resultant speed sequence. Determining a seismic oscillation energy characteristic parameter and a seismic oscillation amplitude characteristic parameter of each station according to the resultant acceleration sequence and the resultant speed sequence of each station, and determining a characteristic pattern sequence of the station network according to the seismic oscillation energy characteristic parameter and the seismic oscillation amplitude characteristic parameter of each station, and inputting the feature map sequence of the station network into a seismic intensity field prediction model, and performing prediction by the seismic intensity field prediction model to obtain a seismic intensity field prediction result. The seismic intensity field prediction accuracy is improved, and the prediction complexity is reduced.

The application discloses a kind of UHPC connection's double post-tensioning prefabricated prestressed concrete frame structure system, including prefabricated concrete upper column, prefabricated concrete lower column, double post-tensioning prefabricated prestressed concrete composite beam, UHPC node core area and composite slab.The upper longitudinal main reinforcement, lower longitudinal main reinforcement, ordinary steel and post-tensioning prestressed tendon are directly anchored in UHPC node core area.The structure system is not only convenient and fast in field construction, improves component installation efficiency, but also can greatly reduce the anchoring length of steel bar, greatly reduce the amount of stirrup in node core area, avoid crowded steel bar in node core area, and reduce the cross-sectional height of component, reduce self weight, improve component crack resistance and self-recovery performance, thereby improve the seismic performance of overall frame structure.Double post-tensioning design can be reasonably designed according to different span, different load, different seismic intensity and other requirements, reduce cost, meet the use requirements.

The application discloses a kind of track traffic bridge seismic toughness grading evaluation standard construction methods, comprising: determining the function target requirement after earthquake under different earthquake levels;Carry out seismic vulnerability and function vulnerability analysis, determine the structure damage grade and post-earthquake residual function under different earthquake intensity;Determine the repair procedure and repair path of track traffic bridge system component, calculate the repair quantity and component repair period, obtain the repair period of track traffic bridge system;Analysis obtains the traffic function in repair process;Draw ladder type function recovery function and calculate to obtain toughness index;Calculate the effective influence days of different damage grades under different earthquake intensity;Establish the relationship between damage grade and effective influence days, determine the effective influence days range of different damage degree grade, obtain the seismic toughness grading evaluation standard.The application reduces the number and calculation amount of bridge samples, accurately reflects the function recovery situation after earthquake, and is used to guide the seismic fortification of bridge.

Provided is an earthquake prediction method for predicting that a specific period is a period with a high likelihood of earthquake occurrence on the basis of information on a seismic intensity or magnitude of interest for prediction in a particular area on the earth.　An earthquake prediction method according to the present invention comprises: an astronomical information collection step S1 for collecting astronomical information for a predetermined period in the past and a predetermined period in the future; a parameter acquisition step S2 for acquiring a parameter based on the collected astronomical information; an earthquake occurrence range identification step S3 for identifying an earthquake occurrence range, which is a range of the parameter in an earthquake occurrence period in which an earthquake actually occurred with the seismic intensity or magnitude of interest for prediction in the predetermined period in the past; and an earthquake prediction step S4 for extracting a period in which the parameter is within the earthquake occurrence range from the predetermined period in the future and predicting that the extracted period is a period with a likelihood of earthquake occurrence.

This invention relates to the field of seismic isolation bearing technology, specifically a horizontal seismic isolation bearing based on air springs, comprising a lower connecting steel plate, an upper connecting steel plate, a lead-core rubber bearing element, a supporting sliding element, a sector-shaped air spring, and a dust cover. The lead-core rubber bearing element is fixedly connected to the upper part of the supporting sliding element, and the supporting sliding element and the lower connecting steel plate are connected through sliding contact, forming a sliding friction pair. Multiple sector-shaped air springs are arranged circumferentially around the supporting sliding element, and the outer sides of the sector-shaped air springs are connected to steel limiting rings fixed to the lower connecting steel plate. The sector-shaped air springs are internally equipped with limiting devices and buffer rubber to prevent excessive displacement and compression damage. A dust cover is installed on the upper part of the steel piston rod of the sector-shaped air spring. The bearing of this invention can automatically adjust its working state according to the earthquake intensity, primarily using sliding and air springs during minor earthquakes, and activating the lead-core rubber for energy dissipation during major earthquakes, achieving intelligent graded seismic isolation.

This invention provides a method for linking earthquake warnings with the identification of the number of people inside a room. [Solution] The method includes acquiring seismic waves in real time using an acceleration sensor, performing band-pass filtering to obtain seismic waves with a high signal-to-noise ratio, determining the maximum acceleration, maximum velocity, and maximum displacement based on the seismic waves with a high signal-to-noise ratio, predicting the seismic intensity of a seismometer, acquiring earthquake parameters announced by the national public warning system, acquiring the location of the building inside and the seismic design intensity, calculating the source distance based on the epicenter, source depth, and location of the building inside, calculating the earthquake warning intensity from the magnitude and source distance, calculating the earthquake intensity from the seismometer intensity and the earthquake warning intensity, acquiring the number of people inside in real time using a human presence sensor, determining the linked alarm level based on the earthquake intensity, seismic design intensity, and number of people inside, and issuing an alarm and transmitting alarm information according to the linked alarm level.

This invention provides a seismic intensity estimation system that can improve the accuracy of estimation when estimating the seismic intensity class based on the acceleration waveform obtained by the acceleration sensor of a smart device, while the smart device is placed on a stand on the floor. [Solution] The seismic intensity estimation system 1 includes: an acceleration waveform collection unit 23 that collects acceleration waveforms from each of a plurality of smart devices 10 during an earthquake; an acceleration waveform adjustment unit 24 that rotates the acceleration waveforms of the plurality of smart devices 10 so that their orientations in the horizontal plane coincide with each other to generate orientation-adjusted acceleration waveforms; a frame vibration characteristic derivation unit 25 that derives the vibration characteristics of at least one frame based on the orientation-adjusted acceleration waveforms of at least one pair of smart devices 10; and a floor seismic intensity class estimation unit 26 that derives the Fourier spectrum of the floor based on the acceleration waveform on the frame and the vibration characteristics of the frame to estimate the seismic intensity class of the floor.

The invention provides a high arch dam earthquake vulnerability analysis method and system based on an extreme gradient lifting tree theory, and the method comprises the steps: obtaining a plurality of pieces of earthquake vibration data meeting the feature requirements of a high arch dam site, and constructing an engineering demand parameter set and an earthquake vibration intensity parameter set; constructing a high arch dam probability earthquake demand model based on an extreme gradient lifting tree model, and fitting a non-linear relationship between engineering demand parameters and earthquake intensity parameters; fitting a change curve of the engineering demand parameters with respect to the acceleration response spectrum value in the first-order natural vibration period based on a scalar model, and extracting boundary values divided by different anti-seismic performance levels; and on the basis of an engineering demand parameter logarithmic normal distribution hypothesis, using the fitted high arch dam probability earthquake demand model to construct an earth surface vulnerability function, and inputting an earth vibration strength parameter and boundary values of different anti-seismic performance levels for calculation to obtain earthquake vulnerability probabilities of the high arch dam under the different anti-seismic performance levels.

The invention provides an earthquake scene simulation system and method and computer equipment, and relates to the technical field of earthquake emergency. The system comprises a natural language interaction layer, a central scheduling module, a multi-source data fusion layer, a professional calculation layer and a visualization and decision support layer. The earthquake scene simulation system receives a natural language instruction based on a natural language interaction layer under the condition of earthquake scene simulation; the central scheduling module is used for sequentially sending trigger instructions to other levels of the system based on the structured instruction; the multi-source data fusion layer is used for querying seismic data and obtaining a unified seismic feature data set based on association integration of a knowledge graph; the professional calculation layer is used for generating a structured decision scheme and determining seismic intensity and seismic loss evaluation results; and the visualization and decision support layer is used for constructing a city-level three-dimensional scene and generating multi-class earthquake thematic maps. The system can improve scientificity and timeliness of earthquake disaster response decisions.

The invention relates to the technical field of water conservancy projects, and discloses a high seismic intensity area and reservoir area bridge scheme comparison and selection method and system, and the method comprises the steps: building a multi-field coupling model based on the earthquake, landslide and large water level rise and fall, and obtaining a safety index, a function index and an ecological index in SPI values of a comprehensive performance index SPI based on the multi-field coupling model; establishing a dynamic full-life-cycle dynamic LCC model; an improved NSGA-III algorithm is adopted, optimization is carried out to generate a plurality of initial candidate schemes by taking minimization of the LCC value of the dynamic full-life-cycle dynamic LCC model, maximization of the comprehensive performance index SPI and minimization of carbon emission as multiple objectives, and an optimal candidate scheme is screened from the initial candidate schemes in combination with TOPSIS multi-attribute decision, the comprehensive performance index SPI comprises a safety index, a functional index, an ecological index and a cultural index. According to the method, the slope instability probability is reduced by arranging the multi-field coupling model based on earthquake, landslide and great water level rising and falling.

The utility model discloses a low-prestress double-slope friction variable-stiffness self-resetting concrete beam column joint device which comprises a precast concrete column, a precast concrete beam located on one side of the precast concrete column and a variable-stiffness energy dissipater connecting the precast concrete column and the precast concrete beam into a whole. The variable stiffness energy dissipater comprises a middle slope surface steel plate with a fluctuating surface, an outer slope surface steel plate with a fluctuating surface and an inner plane steel plate connected to the prefabricated concrete beam. The anti-seismic structure is provided with a three-section type multi-section flag-shaped hysteretic curve, so that the anti-seismic requirement of the structure under the intensity of small earthquakes and medium earthquakes can be met, and the energy under the action of large earthquakes can be better consumed; the interlayer angular displacement, the floor acceleration and the like of the structure are obviously reduced under the conditions of small earthquakes, medium earthquakes and large earthquakes; the connecting structure has the advantages of small residual deformation after an earthquake, light structural damage and the like, and meanwhile, obvious plastic deformation of main structural members such as precast concrete beam columns and the like is avoided.

This invention discloses a high-voltage DC bypass switch for improving reliability in areas with strong winds and high seismic intensity. It includes a switch body, a support bushing, and an operating mechanism. To enhance mechanical stability, a parallel insulating support structure is added beside the support bushing. This structure is rigidly connected to the flange at the top of the support bushing via a connecting plate, forming a triangular support frame. For the independent high-voltage node introduced by this structure, a split-type voltage equalization assembly is provided: a first voltage equalization ring is fixed to the top of the insulating support structure, and a second voltage equalization ring is fixed to the flange. Both voltage equalization rings are U-shaped, with opposite openings and electrical isolation, optimizing the electric field at two locations and effectively suppressing partial discharge. This invention synergistically solves the problem of improving the mechanical strength and insulation performance of high-voltage DC switches in harsh environments.

The present invention discloses a transverse bridge direction post-earthquake driving safety analysis method considering the seismic damage state of a longitudinally connected ballastless track-continuous beam bridge system, establishes a vehicle-track-bridge coupling dynamic model considering the seismic damage state, analyzes the post-earthquake damage law of the longitudinally connected ballastless track-continuous beam bridge system, so as to clarify the seismic damage state of key inter-layer components, and conducts a post-earthquake operation safety performance evaluation of the train considering the seismic damage state. It is clarified that the over-limit of the train safety index is significantly stronger when the seismic damage state is considered than when the seismic damage state is not considered. If the seismic damage state is not considered, the judgment of post-earthquake driving safety will be underestimated. It is also clarified that the over-limit risk of the train safety index at different earthquake intensities when the seismic damage state is considered and not considered provides more sufficient protection to avoid the risk of post-disaster driving, which has important practical value.

The invention discloses an earthquake response modeling and analysis method for a deep underground chamber structure. The method comprises the following steps: firstly, constructing a finite element and infinite element coupled three-dimensional calculation model; then, a mapping relation between the initial crustal stress data and stress field parameters is constructed, the stress field parameters are assigned to a three-dimensional calculation model, and the initial stress field parameters are iteratively corrected by applying pressure to the model; then, converting the seismic load into an equivalent acceleration load, applying the equivalent acceleration load to the boundary of the bottom of the model, and continuously spreading the equivalent acceleration load between near-field and far-field rock masses; and finally, earthquake response calculation is carried out, the displacement, stress distribution, acceleration response and development process of the chamber structure under the earthquake action are simulated, and key indexes are extracted to analyze the response rules of the chamber structure under different earthquake intensities and different burial depths. According to the method, the refinement of the model and the high efficiency of calculation are both considered, the error of cross-software operation is reduced, the working efficiency is improved, and a direct numerical basis can be provided for the aseismic design of the deeply-buried underground chamber structure.

The present invention provides a video-based earthquake intensity calculation method, device, and equipment. The method comprises: obtaining surveillance video of a target area where an earthquake occurred during a target time period before and after the earthquake, and calibrating a target object in the surveillance video; tracking the target object in the surveillance video and outputting the tracking result; if the tracking result indicates that the target object is lost in the surveillance video, recording the image of the target object in the surveillance video at the time of loss as the target image, performing full-image feature extraction on the target image, and determining a suspected target object; recording the image of the target object in the surveillance video before the target object was lost as a historical image, and calculating the motion prediction area of ​​the target object at the time of loss based on the historical image; re-determining the target object based on the suspected target object and the motion prediction area; and calculating the earthquake intensity of the target area based on the historical image and the target image after the target object was re-determined. The present invention can promptly and accurately calculate earthquake intensity.

The invention relates to the technical field of earthquake disaster assessment, and particularly discloses a multi-precision earthquake disaster rapid assessment method, which comprises the following steps: step 1, processing building basic data, and dividing the precision of the collected building data from high to low; step 2, calculating and generating seismic intensity distribution through a seismic intensity attenuation formula on the basis of three-element information of seismic time, magnitude and epicenter position of the earthquake; 3, selecting an evaluation precision strategy, wherein the evaluation precision strategy comprises an optimal precision strategy and a manual specified precision strategy; and step 4, based on the processed building basic data, calculating the obtained seismic intensity distribution and the screened building data participating in the calculation. According to the method, the building basic data is graded according to the precision, the optimal precision strategy and the manual specified precision strategy are supported, the method can adapt to the basic data precision of different areas, the maximum benefit of the data precision is fully played, and the problem that the evaluation precision of an existing method is single is solved.

The invention discloses a probabilistic grading fault scene generation method for an electrical integrated energy system, and relates to the technical field of integrated energy system optimization, and the method comprises the steps: firstly, considering the earthquake intensity uncertainty, discretizing a target earthquake magnitude range into a plurality of equidistant intervals, and calculating the occurrence probabilities of earthquakes of different earthquake magnitudes; secondly, modeling disaster-causing properties of earthquakes with different earthquake magnitudes by adopting a vulnerability curve, and calculating expected values of damaged elements of a power distribution system and a natural gas system; then, randomly generating a fault scene under each classification magnitude by using a Monte Carlo method, carrying out analogue simulation on the cascade fault of the electrical integrated energy system under the random fault scene, and recording the total loss load of the system; and finally, calculating an average load loss amount under each classification magnitude, and selecting a typical fault scene to form a classification fault scene set. According to the method, the tail risk of the small-probability extreme event is quantified, and a scene basis is provided for formulating a toughness improvement strategy of a comprehensive energy system.

The invention relates to the technical field of power system grounding protection and seismic resistance, and discloses an equipment grounding connection structure suitable for a high seismic intensity region, which comprises a copper woven belt flexible connection unit bridged between an external equipment bracket and a grounding lead-up copper bar. The unit is a prefabricated integrated assembly and comprises a middle flexible braided section, rigid ends at two ends and a local insulating sheath. The upper end of the grounding lead-up copper bar is fastened with a grounding lug plate at the bottom of the support through an anti-loosening bolt assembly, and the lower end is fused with the grounding lead-up copper bar through exothermic welding and conductive paste filling. During installation, the flexible section is kept loose, and the length allowance which is 1.2-1.5 times of the designed displacement amount is reserved. Relative displacement caused by earthquakes is absorbed through flexible geometric deformation, mechanical tension is converted into deformation energy, the problem that traditional rigid connection is prone to breakage is solved, and the physical integrity and electrical conduction safety of a grounding loop in the high-intensity earthquake environment are ensured.

The invention discloses a power transmission tower earthquake vulnerability evaluation method and system considering foundation degradation. The method comprises the steps that a degradation model of pile characteristics and pile-soil interface characteristics along with corrosion time is established; establishing a power transmission tower single-tower finite element model containing the pile foundation according to the degradation model and the model constraint; time-history analysis is carried out to obtain structural response results of the power transmission tower under different seismic oscillation intensity indexes, and nonlinear static pushing analysis is carried out to obtain a structural damage quantitative index; carrying out earthquake vulnerability analysis on the power transmission tower by adopting a vulnerability analysis theory according to the structure response result and the damage quantitative index; the system comprises a construction module, a finite element module, a quantitative analysis module and a vulnerability analysis module. Reference is provided for anti-seismic research of the power transmission tower; the method is of great significance in guaranteeing safe operation of the power transmission line, reducing loss of the power transmission line caused by an earthquake and guiding pre-disaster prevention and disaster management decision of the power transmission tower.

A prefabricated lightweight aggregate fiber concrete sandwich insulated composite wall with a frame structure is disclosed. The composite wall consists of prefabricated lightweight aggregate fiber concrete sandwich insulated composite wall panels connected to the frame structure to form an integral whole. The top and bottom ends of the prefabricated lightweight sandwich insulated composite wall are connected to the crossbeams via sliding energy-dissipating nodes. Limiting devices are provided between the left and right sides of the prefabricated lightweight sandwich insulated composite wall and the frame columns, and filling material is also adhered between the left and right sides of the prefabricated lightweight sandwich insulated composite wall and the frame columns. The lightweight aggregate fiber concrete uses fine ceramsite as coarse aggregate to reduce the weight of the wall and decrease seismic forces. The addition of polypropylene fibers to the formula improves the ductility and crack resistance of the concrete. This invention features fire resistance, thermal insulation, earthquake resistance, and convenient connection, effectively improving the seismic performance and thermal insulation performance of buildings in high seismic intensity and cold regions, while reducing construction difficulty.