1163 results about "Seismic resistance" patented technology

The invention discloses an autoclaved aerated concrete building block, which is prepared by adding water into 50 to 55 weight parts of ceramic polishing waste, 10 to 15 weight parts of fine sand, 20 to 24 weight parts of calcined lime, 10 to 20 weight parts of cement, 0.05 to 0.09 weight part of aluminum powder and 3 to 5 weight parts of gypsum. The invention also discloses a preparation method for the autoclaved aerated concrete building block, which comprises the production processes of raw material fetching, slurry preparation, proportioning and pouring, standing and curing in a hot chamber, blank cutting, grouping, autoclaved maintenance, finished product inspection, recycle of waste liquid, waste slag and waste products and the like. The obtained autoclaved aerated concrete building block has the characteristics of high forming speed, light weight, high strength, heat insulation, sound insulation, good fireproof performance, low elasticity, seismic resistance, convenient construction and the like. The preparation method realizes utilization of the ceramic polishing waste, reduces the discharge of wastes of the ceramic industry, and is favorable for protection of ecological environment.

An elongated tension-only or centering brace for a structural frame is provided where the brace is anchored at a first attachment point and to a second attachment point that is removed from the first attachment point. The elongated tension-only brace has one or more elastic restoring force elements that have effective lengths greater than the length of the tension only brace between the attachment points.

The invention discloses an ultralow frequency vibration isolator based on parallel connection of a positive stiffness spring and a negative stiffness spring, comprising a guide post, a sheath cover, a sliding block, a negative stiffness spring, a lower cover, a guide seat, a ball and a main spring. According to the invention, the main spring (a positive stiffness spring) is connected with the negative stiffness spring in parallel, thus a vibration damper can have the characteristics of high static stiffness and low dynamic stiffness, and zero-hertz ultralow frequency vibration isolation is realized; connection of a screw thread pair is adjusted, thus a stiffness curve of a vibration isolator is adjusted according to vibration isolation quality, and vibration isolation performance can be adjustable; and rolling friction is realized by adopting balls, thus frictional resistance is reduced. The ultralow frequency vibration isolator disclosed by the invention can be used as one component and is applicable to an environment under vibrational excitation, especially an environment under low frequency vibrational excitation, such as a vehicle seat, a suspension, precise instrument vibration isolation as well as vibration attenuation and seismic resistance.

The invention belongs to novel materials in tunnel construction, in particular to shield synchronous grouting slurry capable of effectively controlling stratum displacement caused by shield construction and tunnel floating after escaping from the shield tail. The properties of the novel shield synchronous grouting slurry material relate to the control of stratum settlement caused by shield construction, the tunnel floating after escaping from the shield tail, and the long-term stability of the tunnel. The invention aims at overcoming the shortcoming in condensation time of conventional single-fluid activity and inertia material, mainly adopts yellow sand, lime putty and fly ash, and adds proper amount of additives to prepare the high-quality synchronous grouting material with high density, high early strength, small shrinkage deformation, good fluidity, good filling property, good stability, seismic resistance and no liquefaction. By the application of the synchronous grouting slurry in engineering test, the invention effectively controls the ground settlement and the tunnel floating after escaping from the shield tail, simultaneously excellent performance and construction effect of the synchronous grouting material obtain general consent from the building side and the construction side, and the synchronous grouting slurry has practicality and promotion value.

The invention relates to a multifunctional rotating life-saving device. The multifunctional rotating life-saving device enables people and articles which are positioned in the multifunctional rotating life-saving device to all keep in an upright state forever without being injured by seism and collision through the free rotation of a cube shell and a spherical rotating inner shell and is used in the fields of seismic resistance, collision resistance of transportation means, and the like and for manufacturing a large-size seismic-resistant life-saving rockerie, a seismic-resistant life-saving bed, a seismic-resistant life-saving table, seismic-resistant life-saving student desks and chairs, a seismic-resistant life-saving TV cabinet, a seismic-resistant life-saving safety box, a seismic-resistant life-saving anti-theft door, a vertically lifting seismic-resistant life-saving elevator, a seismic-resistant life-saving bathtub, a seismic-resistant life-saving closestool, a high-grade winerotating winebottle, an underground mine seismic-resistant life-saving system, a marine perils preventing life-saving ship, a collision-resistant life-saving automobile, a life-saving plane, an alienspacecraft, a movable combined seismic-resistant life-saving building, a multifunctional rotating seismic-resistant cabinet, a multifunctional rotating seismic-resistant filing cabinet, a multifunctional rotating seismic-resistant wardrobe, a high-seismic-resistant rotating tumbler building, and the like. The multifunctional rotating life-saving device and related products thereof are suitable for each family and unit.

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 an energy dissipating and damping type multi-ribbed composite wallboard and a manufacturing method thereof, and relates to an energy-consumption wallboard which is applied to seismic fortification areas or building structures with higher requirement on seismic fortification. The composite wallboard comprises infilled bricks, reinforced concrete ribbed beams and reinforced concrete ribbed columns, wherein the reinforced concrete ribbed beams and the reinforced concrete ribbed columns form a reinforced concrete grid; the top surfaces and bottom surfaces of the infilled bricks are connected with the reinforced concrete ribbed beams in the reinforced concrete grid through concave-convex grooves and tongues, and a layer of colloidal graphite is formed therebetween; and viscous-elastic materials are arranged between the two side faces of the infilled bricks and the reinforced concrete ribbed columns. The manufacturing method comprises the following steps of: binding steel bars of the reinforced concrete grid, manufacturing templates according to groove forms, and pouring concrete for curing; respectively arranging a graphite lubricating layer and a viscous-elastic material cushion on the inner surface of the grid; and pouring the infilled bricks and curing. The invention solves the problem that the infilled bricks are cracked under small seism, so that the seismic resistance of the multi-ribbed wall is enhanced.

The invention discloses a self-resetting multidimensional damping pipe pile group foundation and a construction method, and belongs to the technical field of building seismic resistance. The foundation comprises a bearing platform, a PHC (prestressed high strength concrete) pipe pile, damping supports and a damping ground anchor, wherein the damping supports are connected between peripheral foundation piles and the bearing platform, and each damping support comprises an upper seal plate, a lower seal plate, a soft steel core rubber pad, radial reset springs, an outer sleeve and an inner sleeve and extends into a groove in the bottom of the bearing platform, and the bottom of each damping support is arranged at the top of the corresponding pile through the corresponding inner sleeve in a sleeving manner for fixing; the damping ground anchor below a central pipe pile comprises a shearing damper and anchor rods, the shearing damper comprises vertical reset springs, soft steel clamps and steel clamping grooves, the ground anchor is used for penetrating into the soil layer at a pile end of the central pipe pile, and the upper end of the ground anchor is anchored on the top surface of the bearing platform through a steel pulling cable. By means of the foundation and the construction method, vibration energy during reciprocating motion of seism is effectively absorbed, the multidimensional damping effect of the pile group foundation is realized, pile-bearing platform joints with ductile energy consumption capacity are formed, and the problem that pipe pile heads are prone to seismic damage under the action of strong seism is solved.

The invention discloses a multi-dimensional collision energy consumption mass pendulum damper which consists of a mass ball, a steel cable, a metal cylinder and a viscose elastic material layer, wherein the metal cylinder is an inverted cylinder opening vertically downward; the mass ball, the steel cable and the viscose elastic material layer are all located in the metal cylinder; the mass ball and the steel cable are located in the middle of the metal cylinder; the upper end of the steel cable is fixedly connected with a cylinder bottom plate of the metal cylinder; the lower end of the steel cable is fixedly connected with the mass ball; the mass ball is suspended in the metal cylinder; the viscose elastic material layer is attached to the inner wall of the metal cylinder; and the viscose elastic material layer is arranged in a position capable of enabling collision with the mass ball when the mass ball swings in the metal cylinder so as to realize energy absorption, energy consumption and shock absorption. The damper disclosed by the invention can reduce the vibration reaction of the structure and solve the problem of the structure in seismic resistance and wind resistance.

The invention discloses a semi-active variable-stiffness energy dissipation and seismic mitigation control anchor bolt. The anchor bolt consists of a controller (1), a communicating line (2), a sensor (3), a variable-stiffness control device (12), a sleeve (20), a hollow anchor pipe (5), an anchor gear (10), an anchoring spring (11) and a support structure (4), wherein the variable-stiffness control device (12) consists of a hydraulic cylinder (13), a dual-striking piston (14), oil (16), a bypass pipeline (17), an electro-hydraulic servo valve (18), a stiffness spring (19a), a stiffness spring (19b), and a support box (21) and a base plate (22) connected through a bolt (23). According to the semi-active variable-stiffness energy dissipation and seismic mitigation control anchor bolt, the unrecoverable problems of excessive deformation of an anchoring and shotcreting support structure, unavailable self-adjustment of the support structure, even damages and the like caused by seismic actions are solved, and the seismic resistance of the anchoring and shotcreting support structure and the safety stability of a support body are improved.

The invention relates to the field of building structure seismic resistance and energy-dissipation seismic-mitigation control, in particular to an energy-dissipation and seismic-mitigation oblique prestress shear wall structural system suitable for prefabrication and assembly construction. The structural system includes a prefabricated shear wall, a prestressed inhaul cable, a prefabricated frame column, turning angle constraint connection pieces and an energy-dissipation component; corrugated hoses are embedded in the prefabricated shear wall and internally provided with the prestressed inhaul cable, the four corners of the prefabricated shear wall are provided with the turning angle constraint connection pieces, and the turning angle constraint connection pieces are connected with the energy-dissipation component. The structural system has the advantages that the overall deformation of an upper wall body and the overall deformation of a lower wall body are consistent, a whole control structure is laterally displaced, at the same time, the shear wall structure has a certain self-resetting ability, the overall deformation helps energy-dissipation steel plates give full play to energy dissipations characteristics, a single weak link does not appear, the assembly efficiency of the overall structure is improved, site construction is convenient to achieve, the construction period is effectively shortened, and the cost is saved.

The invention relates to the technical field of bridge seismic resistance, in particular to a self-resetting multi-directional limiting energy-dissipation anti-seismic check block structure which comprises a stop block, wherein the bottom of the stop block is fixedly connected with the top edge of a bent cap; a steel frame which comprises a steel plate, wherein the steel plate is of an L-shaped structure composed of a transverse plate arranged at the top of the stop block and a vertical plate arranged at the outer end of the bottom of the transverse plate, a damping spring is arranged betweenthe vertical plate and the outer side wall of the stop block, and the inner end of the transverse plate is fixedly connected with the side face of a beam body; and a limiting stopper which is arrangedbetween the stop block and the beam body, wherein the limiting stopper comprises a first limiting stopper support fixed to the inner side wall of the stop block and a second limiting stopper supportfixed to the outer side of the beam body, and a limiting stopper elastic belt is arranged between the first limiting stopper support and the second limiting stopper support in a sleeved mode. Relativelarge displacement of the bridge body and the bent cap in multiple directions in an earthquake can be effectively limited, the support is prevented from being damaged, and beam falling and earthquakedamage are prevented.

The invention discloses a concrete composite shear wall, which includes a wall body and side columns, wherein the wall body is fixedly connected with the side columns. The wall body comprises a binding bar array and double-layer metal plates; interlayer is formed between the double-layer metal plates; concrete wallboards are arranged in the interlayer, the binding bar array penetrates the double-layer metal plates, and the concrete wallboards are tightly fixed inside the double-layer metal plates through the binding bar array; the binding bar array is distributed in block form or in quincuncial form; the side columns are steel pipe concrete side columns formed by steel pipes and concrete columns in the steel pipes; the steel pipes of the steel pipe concrete side columns are welded and fixed with the double-layer metal plates. The concrete composite shear wall has high bearing capacity, excellent seismic resistance, high ductility, reasonable stress and the like, thereby being suitable for high level and super high level core tube shear walls.

The invention relates to an assembled shear wall with a corner and an assembled construction method thereof, and belongs to the technical field of assembled buildings. The wall comprises a straight section demoulding free concrete template, a PCF board outside the corner, an inner side template of the corner, an end edge banding template and a fixing device for clamping the PCF board outside the corner, the inner side template of the corner and the end edge banding template; the demoulding free concrete template comprises concrete boards on the inner side and outer side and pulling rods uniformly distributed between the two concrete boards; the fixing device comprises profile steels and a pulling bar, and the profile steels are symmetrically arranged between the PCF board outside the corner and the inner side template of the corner. The wall not only has the advantages of the cast-in-situ structure of being good in integrity, good in seismic resistance, and not prone to cracks, but also has the advantages of assembled buildings of being capable of saving on-site labor, clean and neat in construction site, capable of shortening the construction period and the like.

The invention provides a foam filling body for coal mine goaf filling and a preparation filling method of the foam filling body and belongs to the technical field of coal mine goaf filling and underground construction engineering. The foam filling body comprises the following ingredients in parts by weight: 60 to 70 parts of coal ash, 20 to 40 parts of cement, 20 to 45 parts of water, 0.2 to 0.6 parts of water reducing agents, 0.4 to 1.6 parts of coagulation accelerators and 0 to 20 parts of active agents, and the volume percentage ratio of foam to gelling slurry is 100-250 percent. The gelling slurry solidification time of the filling body is about 3 to 4 days, the single-axis stress intensity is 0.5 to 1.7MPa after 28 days, the apparent density is 650 to 940kg/m<3>, the pumpable time is 11 hours, and the heat conductivity is 0.255 to 0.376 W/(m.k). The foaling filling body can be used for the coal mine goaf filling and has the beneficial effects that the coal ash consumption of the foam filing body is obviously increased, the preparation is simple, the cost is lower, the functions of light weight, cracking resistance, heat insulation, seismic resistance and the like are realized, the on-site application prospects is wide, and obvious economic benefits are realized.

The invention relates to a sleeve confined buckling-restrained brace. The brace comprises an energy dissipation steel tube, an inner isolation thin-wall steel tube, an outer isolation thin-wall steel tube, an outer confined steel tube, inner confined concrete, outer confined concrete, end plates, strengthening steel tubes, installation plates and strengthening ribs. The inner isolation thin-wall steel tube, the energy dissipation steel tube, the outer isolation thin-wall steel tube and the outer confined steel tube are arranged successively from inside to outside and have an identical center; the outer confined concrete is poured between the outer isolation thin-wall steel tube and the outer confined steel tube; the inner confined concrete is poured in the inner isolation thin-wall steel tube, and the strengthening steel tubes are arranged at two ends of the energy dissipation steel tube respectively; two ends of the energy dissipation steel tube and the strengthening steel tubes are connected with the installation plates, the connection is strengthened by the strengthening ribs, and screw holes are arranged in the installation plates. According to the sleeve confined buckling-restrained brace, an effective isolation mode is used, so that the confined concrete is prevented from being destroyed, and the energy dissipation capability is improved apparently. The sleeve confined buckling-restrained brace has the advantages of being high in energy dissipation capability, simple to process, convenient to mount and the like, and has good seismic resistance, ductility and hysteretic energy dissipation capabilities.

The invention belongs to the field of seismic resistance of civil engineering and specifically to a novel automatic anti-seismic bed which is mainly used for lifesaving when a strong shock occurs. In particular, when a strong shock occurs at night, the anti-seismic bed can be automatically started in a short time to protect safety of people on the bed. The anti-seismic bed mainly comprises an acceleration switch, a motor, a fixed bed board, a rotary bedcover and the like. Different acceleration limit values can be set according to different seismic fortification intensity of local buildings; when an earthquake occurs and a shear wave accelerated velocity exceeds a limit value, the acceleration switch is triggered and a circuit is turned on so as to allow the rotary bedcover to be opened until the bed is enclosed. The apparatus is provided with a self-locking zone, when the bedcover completely encloses the bed, self-locking is started to fix the rotary bedcover, so the whole bed forms an approximately-enclosed stable system; and protection materials like sponge are placed in the rotary bedcover to protect safety of people. The apparatus is provided with multiple protection circuits to guarantee effective starting. The limit value of the acceleration switch is adjustable, which facilitates usage of the bed in different regions. A large container is arranged in the bed, which facilitates storage of food, oxygen, emergency supplies and communication articles in the bed.