177 results about "Earthquake intensity" patented technology

The invention relates to a mobile-terminal-based real-time earthquake monitoring method and a mobile-terminal-based real-time earthquake monitoring system, and aims to supplement the conventional earthquake monitoring station, improve the density of earthquake monitoring points and solve the problem of earthquake monitoring dead zones. According to the technical scheme, the mobile-terminal-based real-time earthquake monitoring method is characterized by comprising the following steps that 1, a mobile terminal monitors the current shock intensity of an area with the mobile terminal in real time, and transmits a shock event to a server through a network if the shock intensity exceeds a preset threshold value; and 2, the server receives the shock event from the mobile terminal, performs real-time statistical analysis, and calculates a potential earthquake position and relative earthquake intensity.

The invention discloses a side slope stability prediction method under an earthquake effect. The method comprises the following steps of 1, stability influence factor determination of a side slope to be predicted wherein 6 influence factors comprises 4 internal factors and 2 external factors; the 4 internal factors are a geological condition of the side slope to be predicted, a slope angle A, a slope height H and a fracture zone distance R; the 2 external factors are a rainfall intensity and an earthquake intensity s of an area of the side slope to be predicted; 2, side slope stability influence index assignment: carrying out assignment on 6 side slope stability influence indexes of the side slope to be predicted respectively; 3, slope stability influence integration index value calculation of the side slope to be predicted: calculating the stability influence integration index value H of the side slope to be predicted according to the 6 side slope stability influence indexes; 4, stability prediction of the side slope to be predicted. Steps of the method in the invention are simple, the design is reasonable and realization is convenient. A usage effect is good. A prediction process of side slope stability under the earthquake effect can be simply and rapidly completed and prediction precision is high.

The invention discloses an assembled profile steel concrete shear wall structure. An installing hole is arranged on an outside wing edge of the end cross beam at the upper end or lower end of the assembled profile steel concrete shear wall structure; one end without the cross beam is provided with a connecting steel plate base, and the installing hole is also arranged on the connecting steel platebase; the installing hole is corresponding to that on the outside wing edge of the end cross beam; the place corresponding to the installing hole on the outside wing edge of the prefabricated concrete and end cross beam is provided with a technical slot for installing bolts or nuts. The assembled profile steel concrete shear wall structure is high in factory prefabrication degree and less in field wet work; full bolt connection methods are applied to the middle of the assembled profile steel concrete shear walls and between the assembled profile steel concrete shear wall and surrounding steelbeams; the field construction speed is quick, the anti-seismic property is good; the assembled profile steel concrete shear wall structure is applicable to the area with high seismic intensity, and the structure applicable height is big.

The invention provides a television-based earthquake early warning information publishing method, which is characterized by comprising the following steps of: comparing earthquake magnitude and forecast intensity obtained by an earthquake early warning center with earthquake magnitude and intensity threshold values set in a comparison unit by the comparison result to distinguish small earthquake from great earthquake when an earthquake occurs; and displaying the earthquake early warning information through a television set in the following two publishing modes, wherein the first mode is that the earthquake center position, the earthquake magnitude information and information on the forecast earthquake intensity that the area of a television audience will suffer are displayed by using scroll caption for the small earthquake, and the count down for earthquake wave to reach the area can also be displayed on the screen as required; and the second mode is that the earthquake early warning information, including earthquake center position and forecast intensity and count down for the destructive earthquake to reach the area of the television audience, is displayed by using a pop-up window mode for the great earthquake, the earthquake magnitude and the origin time of the earthquake can also be displayed, and alarm song can also be triggered according to conditions.

The invention discloses a built-in FRP locally restrained concrete combined member, which comprises FRP constrained concrete sub pillars formed by filling FRP tubes with concrete. Multiple FRP constrained concrete sub pillars are embedded in concrete pillars to jointly bear force with the external concrete pillars so as to form a built-in FRP locally restrained concrete combined pillar; and the multiple FRP constrained concrete sub pillars are embedded in a concrete shear wall to form an FRP locally constrained concrete combined shear wall. According to the invention, the combined pillar and combined shear wall adopt the built-in FRP constrained concrete sub pillars to improve the integral forced performance, the combined pillar is applicable to such engineering fields as large-scale bridge piers, high-bearing capacity concrete piles and super high-rise structure colossal columns, and the combined shear wall is applicable to super high-rise structures and high structures in high seismic intensity areas.

The invention discloses a fabricated self-resetting concrete frame soft steel energy dissipation composite joint. The fabricated self-resetting concrete frame soft steel energy dissipation composite joint includes a prefabricated reinforced concrete column, a prefabricated reinforced concrete beam, soft steel dampers, a pre-stressed steel strand, embedded high-strength bolts and anchored steel bars, wherein the prefabricated reinforced concrete beam is provided with a beam end embedded steel sleeve, and a column end embedded steel plate is arranged at the butt-joint position between the prefabricated reinforced concrete column and the beam end embedded steel sleeve; the pre-stressed steel strand penetrates through a pre-stressed steel strand hole channel of the prefabricated reinforced concrete column, a pre-stressed steel strand opening of the column end embedded steel plate, a pre-stressed steel strand opening of the beam end embedded steel sleeve and the pre-stressed steel strand channel of the prefabricated reinforced concrete beam in sequence, so that the prefabricated reinforced concrete column and the prefabricated reinforced concrete beam are spliced together; and the soft steel dampers are arranged on both sides of a web plate of the section steel part of the beam end embedded steel sleeve. The fabricated self-resetting concrete frame soft steel energy dissipation composite joint enables the prefabricated concrete frame structure to have excellent seismic performance and self-resetting ability under high earthquake intensity.

The invention relates to an aseismic design method of an engineering structure in the field of civil engineering, in particular to a performance-based aseismic design method. A forecast method for the aseismic intensity of the engineering structure comprises the following steps: (1) a capability curve of the engineering structure is obtained by adopting an analytical method; (2) the capability curve of the engineering structure is standardized according to an elastoplastic double broken line model; (3) the overall capability curve of the engineering structure is converted into a function that can obtain displacement and equivalence capabilities in a single-degree-of-freedom system; and (4) the corresponding aseismic intensity can be forecasted according to a set performance displacement objective and an intensity curve. The forecast method for the aseismic intensity of the engineering structure is based on the performance objective to evaluate an intensity level of the engineering structure, and aseismic measures are designed according to an evaluation result of the engineering structure.

The invention provides a seismic-resistant-columned rock bolt foundation with an enlarged toe and a construction method of the seismic-resistant-columned rock bolt foundation with the enlarged toe. The seismic-resistant-columned rock bolt foundation comprises a vertical cylindrical foundation body, the vertical cylindrical foundation body is equal to an upper seismic-resistance column in cross sectional size, and the cylindrical foundation body is inlaid in bed rock and provided with an enlarged bottom. The enlarged bottom is provided with a plurality of radial anchor bolts, and the cylindrical foundation body and the bed rock are anchored integrally with concrete by in-trench placement. Excavated volume of the rock foundation can be reduced effectively, the problems of large project amount, high manpower and material consumption and high cost are solved, and excavation cost is lowered greatly. The foundation is reliably connected with the bed rock by bottom enlargement and radial distribution of anchor bolts, connection of the column with the bed rock is enhanced effectively, extraction resistance, shear resistance, compression resistance and antidumping bearing capacity of the foundation are enhanced, horizontal or vertical displacement or separation between the column bottom and the bed rock in a high earthquake intensity area under the action of earthquake when an earthquake occurs is avoided, and seismic resistance of a building on the rock foundation is improved effectively.

The invention discloses a method and a device for reducing a wind pressure to a building, which solve problems about the method and interface for accessing conventional structural calculation and analysis software and problems about the method and the device for handling noises, rainy weather and condensed water during the reduction of the action applied by the wind pressure onto the building. Passages are arranged between the windward side and leeward side of the building so as to make wind run through a building body; positions, number and cross-sectional sizes of the passages on the surfaces of the building are determined to acquire input parameter values required by the conventional structural calculation software; and the conventional structural calculation software is utilized to finish the structural calculation, force analysis and the design of a structure and components of the building. Therefore, the method and the device for reducing the wind pressure can be actually applied to engineering, engineering cost is reduced and structural security is improved; mufflers and rainwater and condensed water drainage systems are arranged in the wind passages; and the method and thedevice are mainly applied to super high-rise buildings and high-rise buildings of shallow rectangular shapes, particularly regions with strong wind and low earthquake intensity.

The invention provides a probabilistic earthquake economic loss calculation method and system. The method comprises the following steps: selecting a seismic zone and a potential seismic source regioninfluencing a target region, and determining a seismic activity model and seismic activity parameters; generating a seismic event database through a Monte Carlo random simulation method; selecting anattenuation model, and calculating the seismic intensity of any field point in the target area according to the seismic directory library; calculating the economic loss of the target area according tothe seismic intensity and the macroeconomic vulnerability model; and calculating the earthquake loss occurrence probability of any field point in t years and the economic loss of the field point under the specified probability condition in combination with a large number theorem and a full probability formula. The system comprises a model and parameter determination unit, an earthquake event database generation unit, an earthquake intensity calculation unit, an economic loss calculation unit and an earthquake loss occurrence probability and loss calculation unit. The method considers that thefield points may suffer from the same intensity influence for many times, and provides technical support for earthquake loss prediction.

The invention discloses an assembly type steel-concrete composite structure residential system. In the assembly type steel-concrete composite structure residential system, mounting holes are formed inoutside flanges of end cross beams at the upper ends or the lower ends of multilayer of prefabricated steel reinforced concrete shear walls; connecting steel plate seats are arranged at one ends without cross beams, and mounting holes are formed in the connecting steel plate seats and correspond to the mounting holes in the outside flanges of the end cross beams in position; and processing slotsfor installing bolts or nuts are formed in parts, corresponding to the mounting holes in the flanges of the outer sides of the end cross beams in position, of prefabricated concrete. According to theassembly type steel-concrete composite structure residential system, the factory prefabrication degree is high, and wet work on site is less. Fabricated structural steel concrete shearing walls as well as the fabricated structural steel concrete shearing walls and peripheral steel beams are in bolted connection, and the on-site construction speed is high. The assembly type steel-concrete compositestructure residential system has good seismic performance, can be applied to areas with high seismic intensity, and is suitable for large heights.

The present invention discloses an earthquake detection control system, comprising: a detection device, having a plurality of vibration sensors and a microprocessor, the detection device uses the ON/OFF states of the vibration sensors to detect the occurrence of earthquake and uses the microprocessor to calculate the number of the ON/OFF states so as to obtain vibration data; a central monitor computer 2 for receiving, analyzing and judging the vibration data and outputting an output signal representing earthquake intensity; and a control device 3 for generating a control signal according to the output signal so as to perform a predetermined control action.

The invention discloses a method and equipment for monitoring fall damage of farm houses in an earthquake stricken area. The method comprises the following steps of identifying house structures of the farm houses according to remote-sensing images before the disaster; dividing the farm houses with the same house structure in the same seismic intensity area into the same block; interpreting remote-sensing images after the disaster and determining a first ratio of the farm houses of different damage types in each block according to an interpreted result; determining a second ratio of the farm houses of different damage types in each block according to survey data of a disaster scene; and determining a final ratio of the farm houses of different damage types in each block according to the first ratio and the second ratio. According to the method and the equipment, the damage condition of the farm houses in the disaster area can be more objectively and accurately mastered, and the damage condition of the farm houses in the whole disaster area can be mastered by utilizing the incomplete remote-sensing data especially under the condition that the remote-sensing data cannot cover the whole disaster area.

For determining an impact index which indicates the image or damage caused by an earthquake to a portfolio, an equation is stored for calculating a local earthquake intensity for a geographical location. The portfolio includes geographical locations and individual weighting factors assigned to the geographical locations. Furthermore, for the geographical locations stored are one or more impact ratio tables including impact ratios for different earthquake intensity levels. The impact index is calculated for the geographical locations by determining in each case the impact ratio for the local intensity at the respective geographical location, and adding up the impact ratios weighted in each case by the weighting factor assigned to the respective geographical location. An impact index that reflects the geographical distribution of the portfolio can be determined, without the need for a network of seismological measurement stations associated with the geographical locations.

The invention discloses an earthquake-resistance shock-absorption damping device for a building. The earthquake-resistance shock-absorption damping device is characterized by comprising an upper connecting part, a buffer part and a lower connecting part, wherein the upper connecting part comprises a plurality of layers of steel plates, channel steel, an earthquake monitoring alarm device and expansion bolts; the plurality of layers of steel plates are connected with the channel steel by welding; the earthquake monitoring alarm device is mounted on the channel steel; the upper connecting part is fixed with the building by connecting through the expansion bolts; the buffer part is mounted between the upper connecting part and the lower connecting part by welding; the lower connecting part is fixed with the building by connecting through the expansion bolts; the earthquake monitoring alarm device can be used for timely finding occurrence of an earthquake and earthquake intensity; and the buffer part is great in deformation strength and is clear in stress. The earthquake-resistance shock-absorption damping device is creative design scheme, and is beneficial to popularization and application.

The invention discloses a quasi-holographic dense monitoring system for forecast and fast reporting of earthquakes. The quasi-holographic dense monitoring system comprises ultra-microearthquake observation stations arranged at an interval of 10+/-5 km, strong earthquake observation stations arranged at an interval of 30+/-10 km, earthquake mass prediction and prevention centers set in prefecture-level cities, and provincial earthquake mass prediction and prevention centers that are built in all provinces, wherein the earthquake mass prediction and prevention centers set in prefecture-level cities are used for receiving and displaying in real time data information transmitted by the ultra-microearthquake observation stations and the strong earthquake observation stations, and the provincial earthquake mass prediction and prevention centers are used for receiving in real time the data information of earthquakes with a magnitude greater than 6 in prefecture-level cities. Thus an intensive quasi-holographic monitoring system for forecast and fast reporting of earthquakes is formed and can be used for monitoring local earthquakes with a magnitude ranging from -1 to +9. The quasi-holographic dense monitoring system is advantageous in that monitoring spots are densely arranged, earthquake information can be quickly obtained through networks, the position of the epicentral area of a local earthquake with a magnitude greater than 4 can be reported quickly within one minute with epicenter error being +/-5 km, and the efficiency of disaster rescue and relief work can be improved.

The invention discloses a L-shaped steel reinforced concrete special-shaped column matching with fasting skeleton of channel steel, comprising L-shaped reinforced concrete special-shaped columns and fasting skeleton of channel steel. The fasting skeleton of channel steel is matched with said L-shaped reinforced concrete special-shaped columns and said fasting skeletons of channel steel are connected by cross battened column. The L-shaped steel reinforced concrete special-shaped columns matching with fasting skeleton of channel steel can ensure section steel and concrete work in phase by reasonably matching section steel so as to improve the bearing ability and anti-shock performance of common RC special-shaped column. It makes special-shaped column structure apply widely in high-rise building and the building in the region with high earthquake intensity , especially the high-rise building in the region against more than eight degree of anti-shock.

The invention discloses a horizontal elastic limiting and longitudinal hydraulic fusing damping combined support system. A hydraulic fusing damping support is utilized to achieve longitudinal restraining, a limiting height-adjusting rubber support is utilized to achieve horizontal restraining, the hydraulic fusing damping support is arranged on the same midspan side between the top of a first main pier and the bottom of a girder, the limiting height-adjusting rubber support is arranged between the inner side of an arch springing and the outer side of the girder, and a second main pier opposite to the first main pier is provided with a bidirectional movable spherical steel support. The longitudinal restraining is in a locked state in normal situation to guarantee that the longitudinal restraining can be achieved under the action of brake force and the action of track force in an application period. When earthquake happens, the longitudinal restraining is unlocked to have a damping function. The longitudinal restraining is also in the locked state after the earthquake. The horizontal restraining can guarantee horizontal limiting in the application period, prevent the support from being hung in the air and reduce horizontal earthquake force. In earthquake or rare-occurrence earthquake, pier bodies and a foundation can work in an elastic range, so that the resistance of a bridge to the earthquake intensity is improved, traffic smoothness at key traffic nodes is maintained, and significance in earthquake relief work is achieved.

The invention discloses a construction method for prefabricated substation. The construction method for prefabricated substation comprises the following steps: selecting the devices for the prefabricated substation, building, detecting the stress safety for prefabricated substation box body, and building the prefabricated substation under high altitude and high earthquake intensity. The construction method for prefabricated substation is used for having related design and building researching for the prefabricated substation under different environments and has very realistic guiding significance for building the prefabricated substation under different environments, reducing the consumption and occupation of the resource, reducing the impact to the environment and raising the building quality.

The invention provides a concrete shear wall with a lead core energy-consuming device and a built-in steel plate and a manufacturing method, and belongs to the field of earthquake resistance and disaster prevention and reduction of engineering structures. Connection plates with bolt holes are welded to the middle of the inner side of a structural steel frame, and studs are welded to the two sides of the steel plate with round holes distributed in a diagonal mode. The steel plate is connected with the connection plates with the bolt holes in a splicing and fastening mode through high-strength bolts, cake-shaped lead blocks with round holes are embedded in the round holes distributed in the diagonal mode, tie bars penetrate through the cake-shaped lead blocks with the round holes to be bound with reinforcing mats, and concrete is poured in the two sides of the steel plate with the round holes distributed in the diagonal mode to form the concrete shear wall. Under the action of earthquakes with common intensity, the steel plate shear wall provides sufficient rigidity for a structure; the tie bars and the lead blocks extrude to dissipate part of earthquake energy, and house structures can be normally used; under the action of earthquakes with rare earthquake intensity, the tie bars and the studs are effectively bound with a reinforced concrete wall, the steel plate is prevented from buckling outside a plane, and the structural earthquake resistance is enhanced.

The embodiment of the invention discloses an earthquake early warning method, device and equipment, and the method comprises the steps: receiving earthquake information transmitted by earthquake monitoring equipment, wherein the earthquake information comprises the epicenter position information of an earthquake and the intensity information corresponding to a plurality of different earthquake intensities, and the intensity information at least comprises the distance between the intensity information and the epicenter position; obtaining the current position information of a terminal device tobe warned, and determining the seismic intensity of the position corresponding to the position information according to the position information, the epicenter position information and the intensityinformation corresponding to the plurality of different seismic intensities; if the determined seismic intensity is greater than a first predetermined intensity threshold, sending seismic prompt information to a terminal device.

The invention discloses an LED earthquake early-warning emergency light with multi-color identification, digital intensity display and countdown. A main PCB is connected with a full-color LED display screen, a sound alarm and an early-warning emergency light, and a main processor, an RF module, a voltage stabilizing module, a voice module and a driving module are welded onto the main PCB. The LED earthquake early-warning emergency light with multi-color identification, digital intensity display and countdown can play an automatic emergency illumination role during power failure, the RF module receives a data signal from an earthquake early warning server or an exercise signal from a remote control switch, and transmits data to the main processor for processing, the main processor controls the LED display screen, the sound alarm and the early-warning emergency light via multiple interfaces, the LED display screen displays the intensity color of earthquake intensity, the earthquake intensity number and countdown, the sound alarm emits different early-warning sound alarm according to the earthquake intensity, emergency illumination is started at the same time, and requirements in multiple aspects can be met.