25 results about "Structure Collapse" patented technology

The invention relates to the technical field of virtual training, in particular to a firefighter search, rescue and escape virtual training method and system, and the system comprises a virtual scene dynamic construction module which abstracts a room and a corridor intersection into nodes according to a planar graph of a building, abstracts a door and a channel into edges with geometric distance weights, and carries out the virtual scene dynamic construction module; and responding to a fire spreading or structure collapse event in the virtual training, adjusting the weight of a corresponding edge to be infinite, obtaining a shortest path, and establishing a reference rescue path set. According to the method, through dynamic analysis of building plan structure information, rooms and corridor intersections are abstracted as nodes, doors and channels are abstracted as edges with geometric weights, the accessibility of the edges is adjusted in real time after fire spreading or structure collapse occurs, impassable conditions are introduced during path calculation, and the path calculation accuracy is improved. And the real-time adaptability and rescue simulation precision of the path generation process are improved.

The invention relates to a mechanical arm scattering and grabbing planning method based on multi-mode sensing, and belongs to the technical field of mechanical arm control. The problems that in the waste steel recovery process, sensing is not accurate due to the fact that workpieces are complex in shape and tightly stacked, structure collapse is caused by direct grabbing, and the generalization ability of a traditional algorithm is poor are solved. According to the technical scheme, the method comprises the steps that an image and point cloud data are synchronously obtained through a structured light sensor, and after a unified pose is calibrated through hands and eyes, a workpiece is segmented through super voxel clustering; constructing a grabability index based on the spatial topological relation, the support stability, the pose and the surface area ratio, generating a layered scattering cost map, and planning a minimum disturbance path; and a surface normal vector is adopted to generate candidate grabbing point pairs, and the optimal grabbing pose is evaluated through the grabbing quality convolutional network. And high-precision workpiece segmentation, scientific scattering decision making and self-adaptive grabbing planning are achieved, and the operation safety and efficiency are remarkably improved.

The utility model belongs to the technical field of foundation construction, and discloses a supporting plate for foundation construction, which comprises a fixing plate and a fixing seat, the fixing seat is fixedly connected to the outer wall of one end of the fixing plate, a drainage assembly is arranged at the bottom of the fixing plate, a positioning seat is fixedly connected to the other end of the fixing plate, and a connecting block is arranged on the outer wall of the positioning seat. A supporting assembly is installed on the outer wall of the connecting block, a containing groove is formed in the top of the fixing plate, an extending plate is slidably connected into the containing groove, a connecting sleeve is fixedly connected to the outer wall of the fixing base, and a connecting rod is connected into the connecting sleeve in a sleeved mode. According to the supporting structure, through the arranged drainage assembly, drainage can be conveniently conducted on one side of the supporting plate in time in the rainy season or when rainwater is too much, supporting structure collapse caused by rainwater accumulation is avoided, through the arranged supporting assembly, adjacent supporting plates can be conveniently connected, the supporting position can be conveniently adjusted according to needs, and the stability of the supporting plates is improved.

A movable vault structure of a combustion furnace, comprising a furnace body steel structure of the combustion furnace vault part and a furnace lining masonry structure composed of a heat insulation layer, a refractory layer and a support component, characterized in that: the heat insulation layer and the refractory layer are fixed by the support component, the support component is connected to the furnace body steel structure, and the furnace lining masonry structure is a movable structure relative to the furnace body steel structure. The advantages of the present invention are as follows: by adopting a movable support component, the refractory layer and the heat insulation layer have a certain amount of movement during thermal expansion, offsetting the adverse effects of thermal expansion on the refractory layer, reducing the probability of the vault structure collapsing due to thermal expansion, and at the same time, Y-shaped anchoring studs are provided to prevent a collapse accident from occurring when the support component accidentally breaks.

The invention provides a method and system for obtaining lateral bearing capacity of a fabricated composite wall, and belongs to the technical field of constructional engineering.The method comprises the steps that the lateral bearing capacity of a concrete-filled steel tube frame column is calculated according to the ultimate bending moment of the frame column and the height of a shear wall; obtaining the lateral bearing capacity of the middle wallboard based on the lateral bearing capacity provided by the concrete and the building blocks and the lateral bearing capacity of the rib beams and the rib columns; and the ultimate lateral bearing capacity of the fabricated composite wall is obtained through summation calculation of the lateral bearing capacity of the concrete-filled steel tube frame columns and the lateral bearing capacity of the middle wallboards. On the basis, a cooperative work coefficient is introduced, and the ultimate lateral bearing capacity of the composite wall is optimized. The lateral bearing capacity of the fabricated composite wall is reasonably determined, the design of a shear wall is optimized, potential safety hazards or the risk of collapse of a building structure are reduced, and the safety margin of a wall body structure is guaranteed.

The utility model provides a kind of anti-twist high-pressure rubber tube reinforcing rib structure, it is related to high-pressure rubber tube technical field, including rubber tube inner tube, the outside of protection pipe is provided with rubber tube reinforcing rib subassembly, the rubber tube reinforcing rib subassembly includes the circular support ring of installation in the surface of protection pipe, the middle of the circular support ring is uniformly provided with cross torsion core, the middle of the cross torsion core is provided with rectangular pad groove, shock pad layer is installed in the inside of rectangular pad groove;Circular support ring is with the elasticity and strength of elastic stainless steel material itself, when the deformation of rubber tube inner tube occurs, circular support ring can generate effective constraint force, when the internal pressure of rubber tube inner tube is too large, can assist dispersion pressure, improve overall stability, cross torsion core utilizes the elastic stainless steel structure of cross distribution, cooperate circular support ring to enhance overall torsion and compression resistance capacity, effectively inhibit deformation when rubber tube is stressed to bend or twist, and prevent structure collapse.

A novel double-limited rotary damping structure for a coupler includes a hook body and a base, and is characterized in that: a rotary damping mechanism is symmetrically arranged on each side of the base, and the front end surface of the base between the two rotary damping mechanisms is a centrally symmetrical wedge-shaped surface. When a train collision occurs, the positioning surface of the hook body cooperates with the wedge-shaped surface of the base to achieve positioning. Through the rotary damping mechanism of the coupler, the deflection tendency of the coupler is effectively limited during a train collision, so that the coupler can correctly transmit the longitudinal collision interface force, and the crushing area of ​​the vehicle structure can function correctly, orderly and controllably, thereby realizing the passive safety protection function of the vehicle. By applying the completely different mechanical properties of the gas-liquid plunger under quasi-static and dynamic conditions, this collision anti-rotation device scheme is designed and implemented to reduce the design and modification costs, and has great promotion and practical value.

The application relates to a building structure collapse early warning method, system, device and medium based on acoustic fingerprint characteristics. The method comprises the following steps: constructing a collapse prediction model embedded with structure mechanics and crack propagation dynamics constraints based on historical mixed acoustic signals; performing blind source separation and acoustic fingerprint feature extraction on real-time mixed acoustic signals; obtaining damage index evolution trend, uncertainty estimation value and critical state discriminant through mutation theory enhanced time series prediction; generating a comprehensive collapse risk index and predicting the remaining safe time; realizing three-dimensional positioning of the damage source based on the time difference of arrival, and generating a four-dimensional damage evolution map; and outputting multi-level visual warning signals in combination with the risk threshold and the building information model. The method can accurately capture the mutation characteristics of structure damage, and improve the real-time performance, accuracy and reliability of the collapse early warning.

The utility model discloses a water retaining structure for riverway regulation, and relates to the technical field of riverway regulation, the water retaining structure for riverway regulation comprises an inclined panel and a connecting plate arranged on one side of the inclined panel, both sides of the top surface of the connecting plate are provided with slots, the middle part of the top surface of the connecting plate is provided with a clamping groove A, and the top surface of the clamping groove A is provided with a clamping groove B; the water retaining structure further comprises connecting columns arranged in the inserting grooves, water retaining piles are welded to the top ends of the connecting columns, and assembling grooves are formed in the two sides of one water retaining pile and one side of the other water retaining pile. By arranging the moving block, the adjusting assembly, the hydraulic supporting rod, the mounting assembly, the hydraulic rod and the buffering assembly, the effects of relieving water flow impact, prolonging the service life of the water retaining structure and improving the supporting stability can be achieved, and the situation that in the river regulation process, the water flow impact is large, consequently, the water retaining structure collapses, and the service life of the water retaining structure is prolonged is avoided. And the service life and the supporting stability of the water retaining structure are improved.

The utility model discloses a novel prestress thin-wall steel constraint square bamboo column which comprises a thin-wall square steel tube with split bolt holes and a recombined square bamboo column, and a plurality of split bolt holes which are arranged at equal intervals are arranged on two sides of the recombined square bamboo column. The combination of the thin-wall square steel tube and the recombined square bamboo column is realized by applying active constraint confining pressure and mucilage glue to the internal square bamboo column, and the defects of low elasticity modulus, large influence of creep on mechanical properties, strength degradation, high possibility of cracks and other mechanical properties caused by independent use of bamboos are overcome. The current situation that an existing bamboo structure and an existing steel-bamboo combined structure are hindered from wide use due to the fact that raw bamboo material resources are reduced is improved, a layer of flame-retardant gypsum rock wool board is arranged between the protective layer bamboo plywood and the thin-wall square steel pipe, and the flammability of the internal square bamboo column under the fire disaster condition can be effectively improved; and the possibility of bearing capacity failure and overall structure collapse caused by bamboo column combustion under the fire disaster condition is reduced.

This utility model relates to the field of ceramic packaging cartons, specifically disclosing a ceramic packaging carton with corner reinforcement sleeves. The carton includes a main body, with a reinforcing protective mechanism on its outer side. This mechanism includes an outer frame, and four corners of the lower inner wall of the outer frame are each provided with a first reinforcing sleeve that fits against the outer wall of the main body. A cover is provided on the top of the outer frame. The first and second reinforcing sleeves work together to form a fully enclosed reinforcing structure for the upper and lower corners of the main body, providing targeted reinforcement to the corners. This effectively solves the problems of tearing, deformation, and structural collapse caused by stress concentration at the corners of traditional cartons, preventing ceramic products from losing protection. The sponge pad absorbs the vibration energy generated by transport bumps through elastic cushioning, effectively preventing ceramic products from rolling, colliding, or shifting within the main body of the carton, thereby improving the transport safety of ceramic products and reducing the breakage rate.

The invention relates to an anti-overturning crane for highway construction, which is applied to the field of highway construction. The anti-overturning crane comprises a crane body, the crane comprises a crane body, two sets of supporting structures are arranged, the two sets of supporting structures are mounted on the two sides of the crane body correspondingly, and each supporting structure is composed of two mounting base frames, two side supporting assemblies, a center supporting assembly and a driving mechanism; the two mounting base frames are fixedly mounted at the two ends of the outer wall of one side of the crane body. The effect of increasing the supporting area of an anti-overturning area is achieved, a traditional anti-overturning supporting mode adopting four supporting leg structures is improved, the problem that overturning still exists when a ground area of a certain supporting leg structure collapses is solved, the supporting bottom plate can be adjusted to different areas of the bottom of the center supporting assembly, and the supporting effect is improved. Stronger supporting force is effectively provided for a certain side supporting assembly, and the stability performance is better.

The utility model relates to a fault recognition device and an escalator, the fault recognition device is matched with a step structure, the fault recognition device comprises an installation module, the installation module comprises a transition plate and multiple sets of pressing weights and fastening assemblies, the transition plate is arranged at the triangular supporting position of the step structure, the pressing weights abut against the laminated changing positions of the step structure and the transition plate, and the fastening assemblies are arranged on the transition plate; the fastening assembly penetrates through the pressing weight and the transition plate, and the transition plate is externally connected to the step structure. The at least one detection element is fixed on the transition plate, and the detection element is used for detecting the running state of the step structure; the step structure fixing device can be suitable for installation and fixation of various detection elements on different step structures, is good in universality, and is high in quality safety risk such as step structure deformation, step structure collapse and personnel collapse, and the safety is high.

The application belongs to the technical field of precision casting, and particularly relates to a heat preservation riser for precision casting and a preparation method thereof. The heat preservation riser comprises the following components in parts by weight: heavy refractory aggregate 25-40 parts, light refractory aggregate 10-20 parts, aluminum silicate fiber 35-55 parts, high-temperature resistant binder 2-5 parts, heat preservation modifier 0.5-2 parts, dispersing agent 0.3-1 part, and high-temperature reinforcing agent 10-20 times the total weight of the aggregate. The heat preservation riser is formed by using silica sol or water glass as the high-temperature resistant binder, matching with high-content aluminum silicate fiber and heavy and light refractory aggregates, and can stably withstand high-temperature baking at 800-1200 DEG C. After baking, the heat preservation riser has no cracking, deformation or structure collapse, solves the core pain point that traditional resin-based risers are thermally decomposed at 500-600 DEG C, can be directly embedded into a shell mold for baking, does not need additional treatment, is suitable for the whole process of investment precision casting, and greatly simplifies the production process.

The application discloses a safety rope system for structure collapse identification and quick release control, which comprises a full-body safety belt, an anchoring end, an energy-absorbing buffer assembly, a quick release assembly, a sensing assembly and a control module; the anchoring end is fixed on a construction structure, and the energy-absorbing buffer assembly is connected between the anchoring end and the full-body safety belt; the quick release assembly is connected with the anchoring end, and is kept in a locked state in a normal state or when an individual falls; when a structure collapse trigger signal is received, the quick release assembly is automatically released, so that the safety rope is separated from the anchoring end; the sensing assembly is used for acquiring multi-parameter information of the safety rope system; the control module acquires the multi-parameter information, judges whether the structure collapses or not, and outputs a control signal to the quick release assembly. Compared with the prior art, the safety rope system for structure collapse identification and quick release control and the method thereof have the advantages that the safety rope can distinguish between individual falling and structure collapse, and the safety of users is ensured.

The invention discloses a post-earthquake building semi-ruin structure collapse probability prediction method based on image recognition and deep learning. The method comprises the following steps of: (1) acquiring a building ruin image capable of representing key damage characteristics such as a concrete peeling area (S), a steel bar buckling degree (Y), a structure overall inclination angle (alpha), a component node cracking and local falling degree (F), ruin overall integrity and residual support degree (E) and the like through an unmanned aerial vehicle; (2) constructing a deep learning model CVCB-Net fusing a convolutional neural network, a visual Transform, a convolutional long-short term memory network and a Bayesian network; and (3) based on the quantized multi-dimensional damage characteristics, generating a collapse probability curve and risk distribution under different aftershock peak acceleration conditions by adopting Bayesian inference, and carrying out risk rating division. According to the method, non-contact, rapid and intelligent safety assessment of the post-earthquake semi-ruin structure can be realized, and a scientific basis is provided for emergency rescue and reinforcement decision during aftershock.

The application provides a concrete structure health monitoring method and system based on a distributed piezoelectric ceramic sensor, which detects pressure data of a concrete structure by using a distributed piezoelectric ceramic sensor, obtains corresponding pressure field distribution information of the concrete structure, and performs vectorization calibration on stress conditions of the concrete structure; based on the pressure field distribution information, obtains pressure deformation trends of all regions of the concrete structure, identifies abnormal pressure regions, performs regional calibration on the concrete structure, visually identifies the abnormal pressure regions, obtains structure defect information, combines with environmental information, judges whether there is a structure defect deterioration trend, and effectively predicts structure defect changes of the concrete structure; based on internal stress information of the concrete structure, accurately judges whether the concrete structure collapses, and performs alarm notification operation, so that long-time continuous and comprehensive monitoring of the concrete structure is realized, and real-time performance and reliability of the concrete structure health monitoring are improved.

The spray-on refractory coating composition is made by recycling acidic or neutral waste refractories, and contains 10-80% by weight of residual aggregate from acidic or neutral waste refractories, 5-55% by weight of binder, 5-35% by weight of heat absorbing material, 0.3-1.7% by weight of organic fiber, 0.5-3.5% by weight of quick-setting agent, 0.1-0.7% by weight of thickener, 0.1-0.9% by weight of fluidizing agent, and 0.05-0.15% by weight of AE (Air Entraining agent). Most of the acidic and neutral waste firebricks that are used as firebricks for blast furnaces in steel factories and then landfilled in public waters can be recycled and used as the main component of a fire-resistant spray coating material, which can reduce the amount of waste firebricks discarded and contribute to resource conservation and global environmental protection. It can prevent the collapse of structures by preventing concrete explosions in the event of a fire at construction and civil engineering sites, as well as the risk of steel structures collapsing in the event of a fire due to high temperatures. It has good insulation properties at high temperatures and can be used to repair and reinforce damaged areas of existing concrete structures.

The invention discloses a nondestructive detection device for loess structure collapsibility under water-heat-force coupling, comprising a pressure chamber, a consolidation box, a loading unit and an electric heating unit, wherein the pressure chamber is a closed chamber, and a water inlet and a water outlet are provided at the bottom to communicate with the inside of the consolidation box; the consolidation box comprises a pressure plate, a permeable stone, a ring knife and a clay plate, and a bending element transmitting end is installed on the permeable stone and extends into the box; the ring knife is installed directly under the permeable stone to form a consolidation box body; the clay plate is installed under the ring knife to form a consolidation box bottom plate, and a bending element receiving end is installed on the clay plate and extends into the box; the loading unit is a loading rod that passes through the top of the pressure chamber; and the electric heating unit is used to heat the loess sample in the consolidation box body. The invention can detect the change characteristics of loess collapsible structure under high stress environment, has high heating efficiency, and can conveniently control different loess collapsible temperature environments, so as to realize continuous nondestructive quantitative detection of different stages of the whole process of loess structure collapsibility.

The application discloses a polymer modified phase change fireproof structure for a roof eVTOL apron and a method thereof, and belongs to the technical field of low-altitude traffic infrastructure safety. The structure is laid on an existing or newly built building reinforced concrete floor, and sequentially comprises a thermal barrier insulation layer, a phase change heat absorption bearing layer and a grid fireproof isolation flow guide component from bottom to top. The phase change bearing layer is packaged with phase change aggregates by using high-performance polymer cement mortar, and has the characteristics of fire resistance, high toughness and active heat absorption. The isolation flow guide component is made of high-temperature and corrosion-resistant material and is used for blocking the flowing fire. The application also discloses a quantitative design method based on the "heat-power-flow" coupling theory, which accurately calculates the thickness of the functional layer and the groove parameters, and gives a standardized construction process. The application effectively solves the problems of fire spread and structure collapse caused by the extremely hot impact of lithium batteries and the flowing fire of the roof apron through passive structure protection.

The battery pack according to the present invention may include a battery module, a pack tray that houses the battery module therein and is provided such that the upper end is open, a pack cover disposed on the upper portion of the pack tray so as to seal the accommodation space in which the battery module is housed, and a variable coupling portion that interconnects the pack tray and the pack cover and elastically couples the pack cover to the pack tray so that the accommodation space is variably expanded in response to an increase in pressure when an event occurs.

A battery pack according to the present disclosure may include: a battery module; a pack tray configured to accommodate the battery module therein and have a top opening; a pack cover disposed on the top of the pack tray to seal an accommodation space where the battery module is accommodated; and a variable coupling part configured to connect the pack tray and the pack cover to each other and elastically couple the pack cover to the pack tray such that the accommodation space is variably expanded in response to an increase in pressure when an event occurs.

The application provides an assembled composite wall lateral bearing capacity obtaining method and system, and belongs to the technical field of building engineering, and comprises the following steps: calculating the lateral bearing capacity of the steel pipe concrete frame column according to the limit bending moment of the frame column and the height of the shear wall; obtaining the lateral bearing capacity of the intermediate wallboard based on the lateral bearing capacity provided by the concrete and the blocks and the lateral bearing capacity of the rib beam and the rib column; and calculating the limit lateral bearing capacity of the assembled composite wall by summing the lateral bearing capacity of the steel pipe concrete frame column and the lateral bearing capacity of the intermediate wallboard. On this basis, the synergistic work coefficient is introduced to optimize the limit lateral bearing capacity of the composite wall. Reasonably determining the lateral bearing capacity of the assembled composite wall helps to optimize the design of the shear wall, reduces the risk of safety hazards or building structure collapse, and ensures the safety margin of the wall structure.

The utility model discloses a hydraulic ring geological exploration soil sampling device which comprises a drilling assembly, a support, a lifting piece, a servo motor, a sampling piece, a supporting piece and a fixing block, the lifting piece is arranged on the support, the servo motor is arranged on the lifting piece, the sampling piece is arranged on the servo motor, and the supporting piece is arranged on the supporting piece. The supporting piece is arranged on the support, and the fixing block is fixedly installed on the support. The spliced sampling device has the beneficial effects that the spliced sampling pipes are adopted, the sampling pipes are spliced together to be fixedly connected with sampling equipment during sampling and go deep into soil for sampling treatment, and after sampling is finished, the sampling pipes are detached from transmission equipment and are decomposed into two parts, and the internal sample soil is integrally taken out; the problems that the original structure of the soil collapses due to vibration and impact force generated by knocking and the sampling pipe is damaged during sampling in a traditional mode of knocking the sampling pipe are solved.

The utility model relates to the technical field of scaffolds for building construction, and discloses a steel pipe fastener with a novel structural form capable of simultaneously fastening three steel pipes. The clamping mechanism is located on the top of the base and used for fixing the multiple steel pipes at the same time, the clamping mechanism comprises a bearing base arranged on the top of the base and a movable base installed on the top of the bearing base, and the clamping mechanism further comprises a hinge assembly, a fixing assembly and a threaded assembly. The hinge assembly and the threaded assembly are located on the two sides of the bearing base correspondingly and used for rotating the movable base and fixing the movable base correspondingly. Through the arrangement of the clamping mechanism, the multiple steel pipes can be fixed at the same time, the stability of the whole structure is greatly improved, the problem that an existing device is prone to inclination or deformation under the condition that stress is large is solved, meanwhile, under the action of wind power, the clamped steel pipes can effectively resist wind pressure, and the situation that the structure collapse risk is increased is avoided.