39results about "Protective buildings/shelters" patented technology

The storage system comprises a metal structure in which vertical column are connected by means of diagonal members and linking members, whereby at least two diagonal members are provided with at least one dissipative zone, while the linking members are adapted for undergoing elastic deformation when at least one dissipative zone is undergoing a plastic stretching.

A multiple-level bicycle storing system includes a framework with a vertical support and a mounting frame defining upper and lower storing spaces. Each storing space includes a receiver to hold a bicycle. The upper receiver has a distal end, a proximal end and a U-shaped channel along the top surface. The upper receiver is pivotally attached to the mounting frame, enabling the upper receiver to tilt from horizontal to a loading and unloading position. The proximal end of the upper receiver is located near the floor when pivoted into the loading and unloading position. The upper receiver pivots up from the loading and unloading position into the horizontal storage position. The bicycles and the storing spaces are enclosed, and a floor separates the lower storing space from the upper storing space. Each storing space includes a lockable door and conceals the pivot point, upper receiver and bicycles inside the enclosure.

The invention discloses a self-centering buckling restrained brace end connecting device which comprises an interlayer rubber end plate, an I-shaped connecting plate and friction plates, wherein the I-shaped connecting plate penetrates through the interlayer rubber end plate, and the friction plates are connected to the two sides of a web of the unrestrained end of the I-shaped connecting plate. The interlayer rubber end plate comprises a rubber pad, an end plate, an outer cushion plate and two inner cushion plates, wherein the end plate is arranged on the side, facing the friction plate, of the rubber pad, and the outer cushion plate and the two inner cushion plates are arranged on the other side of the rubber pad. Slots are formed in the web of the unrestrained end of the I-shaped connecting plate in the longitudinal direction, and the I-shaped connecting plate and the friction plate can slide relatively along the slots. According to the connection mode of the self-centering buckling restrained brace end connecting device and a self-centering buckling restrained brace, the restrained end of the I-shaped connecting plate is welded to one end of a core plate and an outer sleeve, the outer cushion plates are in contact with the outer sleeve, the inner cushion plate is in contact with an inner sleeve, and a pre-tensioning rod arranged in the inner sleeve is anchored on the end plate after prestress is applied.

The invention discloses a replaceable connecting beam with a double-security mechanism. The replaceable connecting beam comprises a replaceable member and concrete connecting beams at the two ends ofthe replaceable member, the replaceable member comprises a metal damper, a limiting anti-buckling restrained supporting device, a replaceable member connecting plate and a metal damper connecting plate. According to the replaceable connecting beam with a double-security mechanism, under the action of a large earthquake and a principal earthquake, the metal damper centralizes plastic damage, underthe action of a super-large earthquake or a large aftershock, when the metal damper fails and there is not enough time to replace the metal damper, therefore, the plastic damage is centralized into the replaceable member all the time, and other parts of the structure can be protected against unrepairable damage.

The invention discloses a test device with convenient installation and unloading for testing the dynamic characteristics of a seismic isolation building structure. The device comprises a reaction force wall, a hydraulic jack, a quick disassembly assembly, an auxiliary disassembly assembly, a hydraulic jack support mechanism and a seismic isolation support assembly. The quick disassembly assembly includes a first unloading block and a second unloading block whose connecting ends are inclined surfaces fitted to each other. The hydraulic jack supporting mechanism includes a first supporting plate, a second supporting plate, a horizontal screw and a lifting and leveling assembly. The test device provided by the invention can quickly complete the unloading work of a seismic isolation building during an experiment, so that the seismic isolating building can generate and complete free vibration during an initial displacement test process, and the accuracy and operability of an experiment result are effectively improved. According to the hydraulic jack support mechanism of the device, different types of hydraulic jacks can be quickly installed, a certain degree of initial displacement is applied to the seismic isolation building by using the hydraulic jack, and human and financial resources are saved.

A method of constructing seismic shock absorbing structure which transfers horizontal and vertical forces from the floor to allow buildings to withstand earthquake shocks. In a first embodiment, foundation column is structurally designed and casted in the form of a fin shape below plinth level. In another embodiment, strength of the construction frame is enhanced by structurally designing, casting and slotting in at least one of rhombus shaped beams, diagonal cross beams, corner beams, plus shaped beams, rectangle shaped beams, semi-quarter circular beams in horizontal, vertical and inclined directions at the plinth level, below and above the plinth level. In another embodiment, wall is interlocked with at least one of Reinforced Cement Concrete (RCC), cement composites, steel, iron, metal, concrete, polystyrene, polyurethane, wood, plastic, fired bricks, cardboard and clay blocks. In another embodiment, interlocked wall is reinforced with GI (Galvanized) welded mesh, fiberglass mesh and wire mesh.

The invention provides an all-steel fabricated double-limb steel pipe constrained anti-buckling steel plate shear wall, and belongs to the technical field of structural engineering. An embedded steelplate is welded in an edge frame through an upper splice bar, a lower splice bar, a left splice bar and a right splice bar, double-limb constraint steel pipes are arranged at equal intervals on the two faces of the embedded steel plate, and the embedded steel plate is clamped through connecting bolts. According to the all-steel fabricated double-limb steel pipe constrained anti-buckling steel plate shear wall, the shear bearing capacity and the hysteresis energy consumption capability of the steel plate shear wall are improved, the bearing capacity and rigidity of the shear wall can be conveniently adjusted by adjusting the number of the double-limb constraint steel pipes, and the structural design is facilitated; the constraint steel pipes are small in size, light in self weight and convenient to transport and hoist.

The invention discloses a conventional hospital and infectious disease hospital ordinary and infectious disease period combined hospital and a construction method thereof, and relates to the field ofbuildings. The conventional hospital and infectious disease hospital ordinary and infectious disease period combined hospital comprises at least one floor structure, each floor structure comprises atleast one medical care office area, a plurality of wards and at least one inner side corridor, the at least one inner side corridor is used for communicating the medical care office areas with the wards, each ward is communicated with a small private room ward, and each ward and the small private room ward are separated by a longitudinal partition wall with a door and window, the small private room wards are separated by detachable assembly type transverse partition walls, and after the assembly type transverse partition walls are detached, the small private room wards are communicated with atleast one ward to form a contaminated area outer side corridor. According to the conventional hospital and infectious disease hospital ordinary and infectious disease period combined hospital and theconstruction method thereof, efficient conversion between a conventional hospital and an infectious disease hospital can be achieved, and therefore conventional patients can be received and cured atordinary times, and infectious disease patients can be received and cured in the infectious disease period.

The invention discloses a low-frequency tuned mass damper, and belongs to the technical field of civil engineering structure shock absorption. The low-frequency tuned mass damper comprises spiral steel springs. The spiral steel springs are arranged between a mass block and spring height overlapping arrangement supports and between the spring height overlapping arrangement supports and horizontal supports, or the spiral steel springs are arranged between the mass block and the spring height overlapping arrangement supports, between adjacent spring height overlapping arrangement supports and between the spring height overlapping arrangement supports and the horizontal supports. Height staggered bosses are arranged on the spring height overlapping arrangement supports, and the spiral steel springs on the upper side and the lower side of a same spring height overlapping arrangement support are matched with the height staggered bosses correspondingly so that a part height overlapping statecan be achieved. Damping devices are arranged between the mass block and the spring height overlapping arrangement supports or/and between the mass block and the horizontal supports or/and between theadjacent spring height overlapping arrangement supports or/and between the spring height overlapping arrangement supports and the horizontal supports. The low-frequency tuned mass damper can be suitable for control of structure vibration of 0.5 Hz or even lower frequency.

The invention provides a limiting reset high-seismic-mitigation friction type combined support, and belongs to the field of building structure vibration control. The combined support is formed by combining two movable tensile and compression devices and a fixed mounting sleeve. According to the combined support, when the movable tensile and compression devices and the fixed mounting sleeve move ina reciprocating motion to generate tensile and compression friction, a friction energy dissipation outer plate is driven to realize dissipate energy by adopting the friction tensile and compression energy dissipation plates, a matrix and an energy dissipation material extrude and rub each other so as to effectively improve the energy dissipation effect,a friction-resistant layer is large in friction coefficient, the friction tensile and compression energy dissipation plates overcomes friction to apply work, the friction-resistant layer rubs to realize energy dissipation, so that the energy dissipation efficiency is improved, moreover, the overall safety performance is greatly improved under the cooperation of limiting holes and limiting baffles, an SMA regulating limiting reset wire is arranged, so that the whole can be automatically reset after the load disappears, strong impact load can be dissipated, meanwhile, a stable damping force and an automatic reset function can be providedfor the whole in the tensile and compression direction, a combined structure of limiting reset protection is adopted, so that the overall safety performance is improved, and meanwhile, multiple energydissipation and seismic mitigation effects are achieved.

The invention relates to a nested and filled type particle damper comprising large solid particle units, small solid particle units, buffer liquid parts and buffer material parts. Large particles arespheres, and the large particles are hollow. Small particles can be placed in the single large particle in a suspended mode, that is, the nested and filled type particle damper is formed by nesting the large particles and the small particles, meanwhile, gaps between the large particles and the small particles can be filled with buffer liquid, and buffer materials can be selectively pasted to the inner walls of the large particle units 1. Under the action of wind load, earthquakes and the like, kinetic energy of the structure is transferred and dissipated through friction and collision of largeparticle groups and friction and collision between the large particles and the small particles, between the large particles and the buffer liquid, as well as between the small particles and the buffer liquid, the collision efficiency between the particles can be improved through the nesting form of the large circular particles and the small circular particles, so that dissipation is improved, andthe energy dissipating capacity of the damper is further improved through introducing of the buffer materials.

A lateral force resisting system according to the present disclosure includes a metal lateral force resisting panel and holdowns. A foundation bolt placement template may be used to locate and support the foundation bolts during fabrication of the foundation and to further secure the frame foundation interface. The metal lateral force resisting panel may be formed from a single piece of material and may include a plurality of ductility apertures forming lateral force resisting elements to enable the panel to flex without catastrophic failure. In a hybrid configuration, a wooden structural frame may be combined with the metal structural panel. The structural panel may be subdivided into multiple panes using ductility apertures to tailor the response of the panel to the lateral force load. The holdowns secure the rigid structural panel to the foundation bolts and may be either a folded strap and pin configuration or self-tightening.

The invention discloses a buckling restraint support provided with an L-shaped energy-dissipation element, a building and an assembling method, and belongs to the field of external force resisting components for construction structural engineering. The buckling restraint support provided with the L-shaped energy-dissipation element comprises a stretchy inner restraint component, an outer restraint component arranged outside the inner restraint component in a sleeving mode, and the L-shaped energy-dissipation element located between the inner restraint component and the outer restraint component. The inner restraint component comprises a first square steel pipe and a second square steel pipe, and the first square steel pipe and the second square steel pipe are connected in an inserted mode. The L-shaped energy-dissipation element comprises four L-shaped core boards, wherein the two ends of the four L-shaped core boards are connected to the four right-angled edges of the first square steel pipe and the second square steel pipe through bolts correspondingly. The inner section of the outer restraint component is square, the outer restraint component is used for wrapping the L-shaped energy-dissipation element, and a certain gap is formed between the outer restraint component and the L-shaped energy-dissipation element. The buckling restraint support provided with the L-shaped energy-dissipation element is easy to dismount and replace, and the buckling restraint components can be repeatedly used conveniently.

The invention provides a concrete buckling-proof steel plate shear wall for a bottom strengthening zone of a steel structure dwelling. The concrete buckling-proof steel plate shear wall comprises a concrete buckling-proof cover plate and a steel plate wall provided with vertical stiffened ribs; the concrete buckling-proof cover plate is arranged on the outer side face of the steel plate wall provided with the vertical stiffened ribs, so that all cover plate bolt holes are concentrically aligned with corresponding steel plate wall bolt holes; and the tail ends of bolts sequentially penetrate through the steel plate wall bolt holes and the corresponding cover plate bolt holes, and nuts are screwed at the tail ends of the bolts. The concrete buckling-proof steel plate shear wall has the advantages that the concrete buckling-proof cover plate is installed on the outer side of the steel plate shear wall through the bolts, and by adjusting the hole diameter of reserved bolt holes of the concrete buckling-proof cover plate, it is ensured that relative slip can be generated between the steel plate shear wall and the concrete buckling-proof cover plate when the lateral force of the wall reaches a certain value, appearance of a tensile force band of the steel plate shear wall can be delayed due to existence of the concrete buckling-proof cover plate, and the shearing ability, the bearingcapacity and the earthquake resistance ability of the steel plate shear wall can be improved accordingly.

The invention discloses a novel lightweight steel structural plate. The novel lightweight steel structural plate comprises a foundation support, upright columns and steel bodies, wherein the foundation support is trapezoidal; grooves are formed in the foundation support; first shock-absorbing devices are arranged inside the grooves; the first shock-absorbing devices are connected with the upright columns; supporting plates are arranged at the lower ends of the upright columns; second shock-absorbing devices are arranged at the lower ends of the supporting plates; the second shock-absorbing devices are connected with the supporting plates; springs are arranged at the upper ends of the upright columns; the upper ends of the springs are connected with a roof; the lower ends of the springs are connected with the upright columns; the steel bodies are connected with the upright columns; each steel body is divided into a waterproof layer, a fireproof layer and a soundproof layer. The novel lightweight steel structural plate is high in shock resistance, good in wear resistance, light in steel body weight and firm in structure.

The invention discloses a shear type metal damper. The shear type metal damper comprises a core plate, a lower connecting plate, a connecting sleeve and connecting pieces, wherein the connecting sleeve comprises an upper connecting plate and two wall plates, a plurality of position adjusting holes are formed in the wall plates, the connecting pieces penetrate through the position adjusting holes and the core plate, and gaps are formed between the connecting pieces and the position adjusting holes in the vertical direction. According to the shear type metal damper, the core plate is connected with the connecting sleeve through the connecting pieces, on the one hand, the connecting sleeve transmits shear force in the horizontal direction to the core plate through the connecting pieces, so that the core plate generates shear deformation, and on the other hand, when the damper is squeezed or stretched vertically, the core plate can generate relative displacement with the connecting sleevealong with the connecting pieces, so that the axial force is effectively released, the transmission of the shear force is not influenced, the adverse effect caused by vertical axial force is avoided,and the energy dissipation and damping capacity of the damper is improved, and the damper is used in the technical field of damping.

The invention relates to a preparation method of flexible hydrophobic reversible photochromic wood and wood prepared thereby, and belongs to the field of wood manufacturing. The method comprises the following steps: removing lignin of a wood sample by using alkali liquor, then immersing the wood sample into an ethanol solution of a spiro-oxazine photochromic compound; blending epoxy resin crystalglue and hard glue, injecting the blend into a polytetrafluoroethylene mold, placing the glue layer on a plant leaf with a natural super-hydrophobic property, carrying out vacuum constant-temperaturestanding for 12-24 hours, and taking down the leaf to obtain a polytetrafluoroethylene mold with a reverse super-hydrophobic structure; blending epoxy resin crystal glue and flexible glue, injecting the blend into a mold, putting a wood sample on the glue surface, removing bubbles in the glue solution and ethanol molecules in the wood sample, standing for 12-24 hours at a constant temperature, andpeeling off the wood sample from the mold to obtain the flexible hydrophobic reversible photochromic wood. Raw materials used in the method are environmentally friendly, the method is simple, reaction conditions are mild, and various shapes can be customized according to use requirements.

The invention relates to a shockisolation support using waste tires. Theshock isolation support comprises the waste tires, natural sand, pebbles and steel wire rope nets, the waste tires are integral intactwaste automobile tires, the waste tires are filled withthe natural sand, and compacting in a layered mode is carried out. The pebbles with hard texture, smooth surface, no cracks and flat shape are buried horizontally in the natural sand in a layered mode. The pebbles are arranged in 3 to 5 layers. Thesteel wire rope nets wovenby steel wire ropes are tightly enclosed the exterior of the waste tires by tightening the steel wire ropes. The difficulties in the promotion and application of a rubber support shock isolation technology in the village and town buildingscan be overcome, and meanwhile, the problem of recycling of the waste tirescan be solved. The performance requirements of a building shock isolation support can be met, theshock isolation support is suitable for buildings with 1 to 5 floors and building height not exceeding 20 m, especially the shockisolation of the village buildings, and the seismic response of ahousestructure can be reducedto a certain extent.

The invention discloses a main-tower-torsion-preventing power transmission tower with a metal damper capable of dissipating energy and hydraulically resetting. The tower comprises a main tower, a lowhanging point rotating arm, a hydraulic metal damper torsion support and a high hanging point support, wherein the low hanging point rotating arm, the hydraulic metal damper torsion support and the high hanging point support are all arranged at the top end of the main tower, and a main tower rotating shaft is installed at the top end of the main tower and sleeved with a low-hanging-point rotatingarm sleeve. According to the main tower torsion preventing power transmission tower with the metal damper capable of dissipating energy and hydraulically resetting, through the dual buffering effect,torsion and vibration borne by the power transmission tower can be effectively reduced, the very good effect of protecting the power transmission tower is achieved, in addition, during maintenance orinstallation, the rotating angle of the low-hanging-point rotating arm can be adjusted, and therefore after an accident happens, the convenience of installation and maintenance is achieved.

The invention discloses a topological interlocking-based concrete infilled wall with a self-resetting function. The concrete infilled wall is characterized in that an object of a large structure is decomposed into small blocks which are mutually constrained, and the whole is re-constructed through the small blocks, so that better external load and damage resistance can be obtained; the fragmented units are constructed to achieve the mutual constraint condition through special geometrical shape design and are fixed through auxiliary means such as pre-stressed steel bars or pre-compression springs, and finally global constraint is completed through a rigid frame; the problems that an existing infilled wall does not have the self-resetting capacity, local damage often occurs under the action of loads such as impact, and resetting is difficult can be solved; and the effects of the pre-stressed steel bars and concrete blocks are fully exerted, the pre-stressed steel bars bear smaller shearing force in the load acting process, the service life of the structure is remarkably prolonged, the structure has certain displacement tolerance capacity, and it is guaranteed that the whole can be repaired under the extreme load effect.

The invention relates to a connection joint of buckling-constrained steel plate walls for strengthening an existing frame structure. The connection joint comprises U-shaped hoops, T-shaped steel plates, reinforcing plates, the buckling-constrained steel plate walls, studs and fixing devices; the buckling-constrained steel plate walls are arranged in spans of existing frame beams, and the upper ends and the lower ends are connected with the T-shaped steel plates on two sides through the fixing devices, and the other ends of the T-shaped steel plates are fixed to the reinforcing plates and are fastened to the end parts of existing frame columns through the studs; the U-shaped hoops are arranged at the upper ends and the lower ends of the buckling-constrained steel plate walls, bottom steel plates of the U-shaped hoops are fixedly connected with the T-shaped steel plates, steel plates on both sides of the U-shaped hoops are fastened to both sides of the existing frame beams through studs,and the studs extend into the existing frame beams. The connection joint strengthens the existing frame beams and strengthens the connection between the existing frame and the buckling-constrained steel plate walls, improves the anti-seismic performance of the existing frame structure, and can be pre-made in a factory to facilitate construction.

The invention discloses a ceiling shock absorber. The ceiling shock absorber is simple in structure, easy to install, good in shock absorption effect, high in stability, small in occupied space in theheight direction and capable of facilitating ceiling element installation and positioning and ceiling leveling. The ceiling shock absorber comprises a frame (1) and a main bolt (2); a first through hole (11) allowing the main bolt (2) to penetrate through is formed in the middle of the frame (1); the rod portion of the main bolt (2) faces upwards and penetrates through the first through hole (11)from bottom to top; a fastening connecting part (9) used for being connected with a suspended ceiling is arranged on the upper portion of the rod portion of the main bolt (2); an elastic part (3) isarranged between the main bolt (2) and the frame (1) in a sleeved mode; and ceiling connecting parts used for being connected with ceiling elements (001) are arranged at the left side and the right side of the frame (1) respectively. The ceiling shock absorber is suitable for ceiling shock absorption.

The invention relates to a wall type composite damper capable of improving lateral resistance performance of a modularized building structure and a manufacturing method. The wall type composite dampercomprises an upper structure and a lower structure; the upper structure and the lower structure comprise end plates, connecting plates, clamping plates, rib plates, grooves and copper pieces; the ends of the connecting plates are connected with the end plates, the clamping plates are arranged in the middles of the connecting plates, the connecting plates are connected with the clamping plates through high-strength bolts, the rib plates are respectively arranged on the two sides of each connecting plate, the ends of the rib plates make contact with the end plates, and the other ends of the ribplates extend to the clamping plates; the grooves are formed in the inner side surfaces of the ends of the clamping plates, and the copper pieces are arranged in the grooves and make rubbing contactwith the connecting plates; the construction of the lower structure is completely same with that of the upper structure, and the connecting plate of the lower structure is connected with the connecting plate of the upper structure. The damper is simple in structure, small in plane size, small in thickness and convenient to install, cannot be limited by holes of doors and windows, and can be widelyapplied to the multi-layer structure and the above-mentioned modularized building structure.

Disclosed is an anchor kit for pool enclosures. The anchor kit includes top and bottom gripper plates secured to a hollow pool enclosure frame creating a solid I-beam. The gripper plates and ground anchors are permanently installed. Upon the event of a wind storm, an adjustable tie down is placed between the gripper plate and an anchor installed in the earth. The assembly effectively prevents lifting of the frame during the wind event.

The invention discloses a portable heat preservation and temperature rise collaborative system for plateau alpine equipment in the field of heat preservation and temperature rise. The portable heat preservation and temperature rise collaborative system comprises a protective cover and a heating device. The heating device is arranged in the heat preservation cover; the heating device comprises a diesel warm air blower, an oil tank and a battery; the diesel warm air blower is communicated with the oil tank through an oil way, and an electromagnetic regulating valve is arranged on the oil way; the combustion-supporting air inlet and the tail gas exhaust port are communicated with the atmospheric environment outside the heat preservation cover through connecting pipes; the fan air outlet and the fan air inlet are formed in the heat preservation cover; a plurality of temperature sensors are arranged in the heat preservation cover; the temperature sensor is electrically connected with the input end of the controller; the driver and the electromagnetic regulating valve are electrically connected with the output end of the controller; heat preservation is carried out through the heat preservation cover, the oil inlet amount and the fan power of the diesel warm air blower are controlled according to the average temperature, heating and heat preservation are carried out on equipment in the plateau cold and cold environment, and the device has the advantages of being low in energy consumption and convenient to carry.

The invention provides a bidirectional variable-curvature variable-friction pendulum type tuned mass damper. The supporting seat plate of the bidirectional variable-curvature variable-friction pendulum type tuned mass damper comprises a seat plate body, the seat plate body is provided with a contact face matched with a lower sliding face of a sliding block, the contact face is a concave arc face, a plurality of spherical concave faces which are in smooth connection are sequentially arranged on the contact face from bottom to top, a friction layer is arranged on each spherical concave face, and the friction layers are arranged on the spherical concave faces. The radiuses of the plurality of spherical concave surfaces are sequentially reduced from bottom to top, and the friction coefficients of the friction layers of the plurality of spherical concave surfaces are sequentially increased from bottom to top. The bidirectional variable-curvature variable-friction pendulum type tuned mass damper can provide a stable and continuous self-adaptive effect and an excellent bidirectional damping and energy dissipation effect for a controlled structure under different environmental loads, and the purpose of effectively controlling vibration of the structure in three main shaft directions under a Cartesian coordinate system at the same time through one inertial mass block can be achieved; the structure is simple, and the construction is convenient.