38results about How to "Achieving shock resistance" patented technology

The invention relates to a siliceous heat-insulation composite material for a wall, which comprises base materials and water. The base materials mainly comprise closed-cell expanded perlite, cement, building gypsum, inorganic mineral substance fibers, high-viscosity attapulgite clay, redispersible rubber powder, hydroxypropyl methyl cellulose auxiliaries and a water repellent, wherein the inorganic mineral substance fibers comprise alumina silicate fibers, brucite fibers, mineral cotton fibers and the like, and when the material is used, the weight ratio of the base materials to the water is 1:1.2-1.3. The material as an amorphous powdery heat-insulation material is excellent in energy conservation, heat insulation, sound absorption, flame retardance reaching level A1, fireproofing, seismic resistance, crack control, flexibility and weatherability, does not chemically react with the wall, is high in strength and ageing resistance, avoids deformation, crack, hollowing, shedding and is the same as the wall in service life in use. The material is green, environment-friendly and non-toxic, is applicable to heat insulation of an inner wall and an outer wall made of various wall base materials, a splitting wall and heat-insulation energy-saving projects such as roofs, basements, garages, stairs, corridors, fire-fighting accesses and the like.

The invention discloses a combined type high-rise structure energy dissipation and shock absorption enhancement layer. The combined type high-rise structure energy dissipation and shock absorption enhancement layer comprises a core tube positioned in the middle of a building and frame columns on the periphery of the building, wherein an energy dissipation and shock absorption outrigger truss is connected between the middle core tube and each peripheral frame column; an energy dissipation and shock absorption band truss is connected between the peripheral frame columns. The energy dissipation and shock absorption outrigger trusses can improve the integral structural lateral stiffness, thus providing the additional structural damping and reducing the structural horizontal lateral displacement; the energy dissipation and shock absorption band trusses can strengthen the interaction among the peripheral frame columns, thus coordinating the deformation of the frame columns, reducing the deformation difference, strengthening the structural integrality and enabling the structural stress to be uniform. The side span of each energy dissipation and shock absorption outrigger truss is internally provided with a metal yielding type damper, and the side span of each energy dissipation and shock absorption band truss is internally provided with a viscous damper. Under the load effect of wind and the effect of frequent seismic intensity earthquakes, main structural energy dissipation components are viscous dampers; under the effect of design intensity and frequent seismic intensity earthquakes, main structural energy dissipation components are metal yielding type dampers.

The invention discloses a concrete filled wall and cast-in-place structure synchronous construction structure and method. The synchronous construction structure comprises structure beams surrounding the upper and lower portion of a filled wall, and shear walls on the two sides. Rebars are distributed in the filled wall horizontally and vertically. Plastic cushion plates are arranged between the vertical two sides of the filled wall and the shear walls, as well as between the lower side of the filled wall and the structure beams on the lower side correspondingly so as to form separation seams.No separation seam is formed between the upper end and the filled wall and the structure beams on the upper side, and the upper end and the filled wall and the structure beams on the upper side are connected into a whole after concrete pouring. The filled wall and an original structure are separated through structure separation seam materials so as to achieve flexible connection, and structural rigidity is restored. Anchor bars of which the tops are connected with a concrete structure and the separation seam materials serve as damping devices, an anti-seismic effect is achieved, the anti-seismic mode is similar to that of a swing wall system, and certain advantages are more achieved in the aspect of anti-seismic ability compared with a masonry filled wall.

The invention relates to a welding structure of a 460MPa-grade anti-seismic fireproof and weather-resistant building structure and belongs to the technical field of welding. The welding method comprises the following steps of: selecting a welding wire for submerged-arc welding and 460MPa fireproof weather-resistant steel meeting demands on component and mechanical properties; and pre-heating a steel plate to 20-150 DEG C before welding, controlling the interlayer-temperature at 20-200 DEG C, polishing a groove smoothly with a grinding machine before welding, performing priming, filling and capping by adopting the welding wire for submerged-arc welding with SJ101 flux, and finally, performing a mechanical property test on the welded steel plate. The welding method provided by the invention has the advantages that the welding method is easy to operate, is not sensitive to parameters of a welding process and can achieve demands on lightweight, no coating, anti-seismic and fire-resistant services of a high rise steel structure.

The invention discloses a tool changing error detection prewarning device for a machining centre in the technical field of machining. The tool changing error detection prewarning device comprises a prewarning system, a compensating system, a tool loading brake switch, a displacement sensor, a brake block, a tool unloading brake switch, a magnetic base and a connecting rod, wherein the displacement sensor is fixedly connected with the magnetic base to transmit tool change errors of the machining centre to the prewarning system, the prewarning system is arranged on the magnetic base and connected with the tool loading brake switch and the compensating system to transmit tool changing error prewarning decision information of the machining centre, the tool loading brake switch is connected with the magnetic base to brake a tool changing mechanism of the machining center, the compensating system is connected with the base to transmit a tool changing error compensating strategy, and the brake block and the connecting rod are fixedly connected and move simultaneously to trigger the tool loading brake switch for realizing tool changing error hard braking.

The invention discloses a multi-cable compounded damping cable. The technical key point lies in that the multi-cable compounded damping cable comprises a main cable and at least one secondary cable distributed around the main cable, and the at least one secondary cable is located on the upper portion of the main cable. The lower ends of the main cable and the secondary cables are connected with a concrete anchor fixed to the ground. The upper end of the main cable is connected with an upper anchoring end stand column fixedly connected with a structure through a main cable shock absorption device. The upper ends of the secondary cables are connected with the upper anchoring end stand column fixedly connected with the structure through a secondary cable shock absorption device. Hanging rods are arranged between the main cable and each secondary cable as well as between the secondary cables. According to the multi-cable compounded damping cable, the multi-cable compounded damping cable can be installed between two structures which are at a long distance and move relatively, and has the energy dissipation and shock absorption effects basically equal to those of a damper installed between two structures very close to each other.

The invention relates to an anti-seismic house building structure, and relates to the technical field of constructional engineering. The anti-seismic house building structure comprises a foundation pit, a fixing plate fixedly installed at the bottom of the foundation pit, a supporting plate arranged in the foundation pit, a first anti-seismic mechanism installed between the supporting plate and the foundation pit and used for resisting earthquakes on the horizontal plane, a second anti-seismic mechanism installed between the fixing plate and the foundation pit and used for resisting earthquakes in the vertical direction, and a stand column fixedly arranged on the supporting plate, wherein the first anti-seismic mechanism comprises a plurality of horizontal springs fixedly connected to thecircumferential face of the supporting plate, and fixing blocks fixedly installed at the free ends of the horizontal springs correspondingly; the fixing blocks abut against the side wall of the foundation pit through the horizontal springs; the second anti-seismic mechanism comprises a plurality of dampers; the two ends of each damper are hinged to the supporting plate and the fixing plate correspondingly; and the area of the area defined by connecting the multiple dampers to the supporting plate is smaller than the area of the area defined by connecting the multiple dampers to the fixing plate. The anti-seismic house building structure has the effect of increasing the anti-seismic coefficient of a house.

The invention discloses a reinforced concrete frame structure anti-seismic analysis method based on Revit-OpenSEES, and belongs to the technical field of civil engineering. According to the technical scheme, finite element model conversion is carried out from a BIM model of Revit to OpenSEES, and anti-seismic analysis setting and output setting are carried out; the analysis data output by the OpenSEES are grouped, sorted and extracted, and are displayed and output in the form of a graph, a table or a document and the like; according to the concrete and steel bar strain data output by the OpenSEES, earthquake damage secondary analysis is carried out on the structure; key structure earthquake damage information is automatically stored in a Revit structure model; the earthquake damage state is displayed through a three-dimensional view, or virtual roaming is carried out through VR software. The method has the beneficial effects that the integration of common BIM software and a finite element analysis program is realized, the anti-seismic analysis and damage evaluation of the reinforced concrete frame structure directly based on the BIM model are realized, and a solution is provided for the structural anti-seismic analysis to participate in the cooperative work of the BIM.

The invention discloses an outer wall full-shearing structure and a construction process thereof. The full-shearing structure comprises a structural wall and a bearing wall, the bearing wall is connected with the structural wall through a seam pulling structure, the structural wall and the bearing wall are both of a reinforced concrete cast-in-place structure, and the seam pulling structure is used for separating the cast-in-place structural wall from the cast-in-place bearing wall. According to the outer wall full-shearing structure, the structural wall and the bearing wall can be cast in place at the same time, the building construction efficiency is improved, and the cast-in-place structural wall and the cast-in-place bearing wall are kept in flexible connection through the seam pullingstructure. On the one hand, the anti-seismic property and safety performance of the building structure are improved, the anti-permeability performance of the outer wall is improved, and the probability of leakage of the outer wall is greatly reduced; and on the other hand, the outer wall is not integrally poured, certain relative displacement still can be generated between the structural wall andthe bearing wall under an earthquake, so that beams and columns deform along with earthquake waves, the wall body damage is avoided, and the structural safety of a building is guaranteed. The outer wall full-shearing is simple in structure, convenient to manufacture and good in effect.

The invention provides an external enclosure weight-reduction pre-fabricated wall connecting joint and a construction method thereof. The external enclosure weight-reduction pre-fabricated wall connecting joint comprises a first pre-fabricated double-sided composite wall and a second pre-fabricated double-sided composite wall; the first pre-fabricated double-sided composite wall and the second pre-fabricated double-sided composite wall are spliced in the vertical direction and are connected and fixed through a cast-in-situ beam; inserting ribs and partition boards are disposed at the upper endof the first pre-fabricated double-sided composite wall; the inserting ribs are buried in the first pre-fabricated double-sided composite wall and are partially exposed out of the upper end of the first pre-fabricated double-sided composite wall; the portions, exposed out of the first pre-fabricated double-sided composite wall, of the inserting ribs penetrate through the partition boards to extend into the cast-in-situ beam; a first pre-buried part is buried in the lower end of the second pre-fabricated double-sided composite wall; a second pre-buried part is buried in the upper end of the cast-in-situ beam; the second pre-fabricated double-sided composite wall is fixed to the cast-in-situ beam in a matched mode through the first pre-buried part and the second pre-buried part; and accordingly construction and popularization of a pre-fabricated enclosure wall are facilitated.

The invention belongs to the technical field of new energy and energy saving technologies, and particularly discloses a fabricated hollow outer wall structure. The fabricated hollow outer wall structure comprises building block bodies and building block fixing devices matched with the adjacent building block bodies; and building block anti-seismic devices matched with the building block fixing devices are arranged on the building block bodies. Adjusting sliding mechanisms matched with the building block fixing devices are arranged on the inner side faces of the two opposite sides of the building block bodies correspondingly. According to the fabricated hollow outer wall structure, the adjacent building block bodies are fixed through the arranged building block fixing devices, the adjacent building block bodies can be mounted and fixed rapidly and conveniently, the requirement for construction experience of constructors is reduced, and the mounting speed and quality of a hollow outer wall can be effectively improved; after the building block fixing devices are adopted, the strength of the hollow outer wall is greatly improved; and through cooperation of the building block anti-seismic devices, the anti-seismic property of the hollow outer wall is effectively improved, and the situations of falling off, separation and the like of the whole building block bodies can further be effectively reduced through the building block anti-seismic devices.

The invention discloses a fireproof shock-resistant alternating-current low-voltage power distribution cabinet which comprises a cabinet body. A high-voltage bottle is connected into the cabinet bodythrough bolts, a valve is connected to a bottle opening of the high-voltage bottle through threads, a connecting pipe is connected to the top of the valve through threads, and a fire-fighting spray head is connected to the end, away from the valve, of the connecting pipe through threads. A damping base is arranged at the bottom of the cabinet body, guide columns are connected to the outer wall ofthe bottom of the cabinet body through bolts, the bottoms of the guide columns penetrate through the outer wall of the top of the damping base to be welded with connecting plates located in the damping base, and guide rods are welded to the inner wall of the bottom of the damping base. Through the arrangement of the high-pressure bottle, the connecting pipe and the fire-fighting spray head, compressed carbon dioxide is contained in the high-pressure bottle, and the fire-fighting spray head is burst and opened at high temperature, so that the carbon dioxide in the high-pressure bottle is sprayed out from the fire-fighting spray head through the connecting pipe to extinguish fire in the cabinet body, and the fireproof effect of the power distribution cabinet is realized.

The invention provides a three-dimensional anti-seismic steel structure factory building structure. The three-dimensional anti-seismic steel structure factory building structure comprises a pre-buriedstructure and a supporting structure arranged on the pre-buried structure. The pre-buried structure comprises an underground supporting unit and an anti-seismic element arranged on the underground supporting unit and used for being connected with a supporting column. The supporting structure comprises a supporting column installed at the upper end of the pre-buried structure, a beam structure installed on the supporting column and a roof structure installed on the beam structure. The overall structural design is reasonable, and the anti-seismic performance of the overall building can be achieved through the anti-seismic elements. The overall structure is low in manufacturing cost, has the advantages of light weight, high strength and large span of a steel structure building, and is suitable for large-scale popularization.

The invention discloses a radar speedometer with a damping function in the radar speed measuring anti-seismic and shock absorption technology field. The center of the top of a protection box is provided with a support seat. The top of the support seat is provided with a buffer cavity. A support block is nested in the buffer cavity. The left and right sides of the bottom of the support block are provided with two groups of spring rod with a same structure. The top of a support frame is provided with a buffer plate. The top of the buffer plate is provided with a speedometer. The left and right side walls of the support frame are provided with second buffer devices. One side wall of each second buffer device, which is far away from the support frame, is nested with a support plate. The bottomof the support plate is provided with a support rod. The bottom end of the support rod passes through the top of the protection box and then is extended into a first buffer device. The vibration of avehicle passing a road surface next to the installation position of the speedometer can be effectively absorbed so that an influence on the speedometer can be reduced, and the accuracy of the speed measurement of the passing vehicle by the speedometer is increased.

The invention discloses a permanent magnet clutch and an assembling method thereof. The permanent magnet clutch comprises a driving disc and a driven disc. The driving disc comprises a driving inner shaft, a magnet fixing disc, a plurality of first magnetic rings, a driving outer shaft, a plurality of back iron blocks and a plurality of second magnetic rings. The driven disc comprises a driven shaft, an outer sleeve and an inner sleeve. The magnet fixing disc is coaxial with the driving inner shaft, the first magnetic rings are installed on the magnet fixing disc, and the magnetic poles of every two adjacent first magnetic rings are arranged oppositely. The driving inner shaft is sleeved with the driving outer shaft, and the back iron blocks are embedded into the outer wall of the drivingouter shaft. The second magnetic rings are fixed to the driving outer shaft, and the magnetic poles of every two adjacent second magnetic rings are arranged oppositely. The second magnetic rings coverthe corresponding back iron blocks and are separated from the inner sleeve. The outer sleeve is sleeved outside the driving outer shaft, is fixed with the driven shaft and accommodates the driving disc. The inner sleeve is fixed on the inner wall of the outer sleeve. A master part and a slave part in the clutch are not in direct contact, so that mechanical abrasion of the clutch is avoided, the lubricating requirement is reduced, and the clutch has the advantages of vibration isolation and noise reduction.

The invention discloses a construction method of a self-monitoring type slope anti-seismic flexible supporting structure. The self-monitoring type slope anti-seismic flexible supporting structure comprises a slope anti-seismic flexible supporting structure and a flexible supporting structure intelligent monitoring system. The slope anti-seismic flexible supporting structure comprises a flexible concrete supporting frame and anti-seismic anchor rods. The supporting method comprises the following six steps: 1, slope repairing; 2, lofting; 3, anchor rod construction; 4, constructing a supporting frame; 5, mounting an anchor head, and tensioning and locking an anchor rod; and 6, switching on a monitoring system. The prestress recovery comprises the following steps: 1, unsealing the anchor head; 2, applying prestress; and 3, sealing the anchor. The problems that under the earthquake action, a traditional slope supporting structure is poor in deformation control capacity and weak in earthquake resistance, and damage of a supporting system after an earthquake cannot be evaluated are effectively solved; the construction method of the self-monitoring type slope anti-seismic flexible supporting structure has the advantages that the anti-seismic concept is advanced, the anti-seismic performance is excellent, the self-monitoring and self-checking functions are achieved, construction is convenient, and construction equipment is miniaturized.