67results about How to "Stable hysteresis performance" patented technology

The present invention relates to one kind of adjustable low yield point composite metal damper, and belongs to the field of shock resisting structural engineering technology and wind resisting technology. The adjustable low yield point composite metal damper consists of one first energy dissipating metal plate of material with yield strength greater than 200 MPa, one second energy dissipating metal plate of material with yield strength lower than 200 MPa, two horizontal connecting steel plates fixed to building structure, angle steel, high strength screws and one hollowed part. The first energy dissipating metal plate and the second energy dissipating metal plate are staggered and fixed between the horizontal connecting steel plates. The present invention is suitable for use in the crossed support point and the joint between beam and wall or column. The present invention has high energy dissipating capacity and other advantages.

The invention discloses a shear-type stiffened metal damper, which comprises an energy-dissipating steel plate, stiffening ribs are respectively arranged on the left and right sides of the energy-dissipating steel plate, horizontal connecting steel plates are respectively arranged on the upper end and the lower end of the energy-dissipating steel plate, Flange plates are arranged at the front end and rear end respectively, the stiffeners on the left side and the right side of the energy dissipation steel plate are arranged symmetrically or asymmetrically, and the stiffeners on the same side of the energy dissipation steel plate are arranged without crossing. The invention utilizes the advantages of relatively large initial rigidity when the steel plate is stressed in the plane, and prevents the buckling of the energy-dissipating steel plate by means of stiffening, thereby ensuring the energy-dissipating capacity and stability of the damper; There are no cross welds, and the stiffeners can be set in full length without truncating, which is convenient for welding, and the welding quality is easy to guarantee.

The invention discloses a double-rectangular tube buckled assembled buckling-restrained bracing member and belongs to the field of structural engineering. The bracing member consists of a linear inner core member and a peripheral restraining member, wherein the linear inner core member adopts a low-yield point high-ductility flat steel plate and hard rubber is adhered to the surface of the surface of the linear inner core member; the peripheral restraining member is bound by two restrained square steel tubes with extended steel plate strips; the binding function is realized by performing high-strength bolted connection on the square steel tubes; and a high-strength bolt passes through bolt holes on the extended steel plate strips of the square steel tubes, a steel plate arranged between the square steel tubes and a plurality of rubber gaskets so as to connect the two square steel tubes into a whole. The thickness of the steel plate is greater than that of the linear inner core member, and by adjusting the thickness of the rubber gaskets, a gap of 1-2mm is kept between the surface of the peripheral restraining member and the surface of the linear inner core member under the pretightening force of the high-strength bolt. The gap is filled by the hard rubber adhered to the surface of the linear inner core member so as to meet the requirement of expanding under pressure on the linear inner core member.

The invention is steel bar concrete cushion cap which is equipped with obliquely steel bar and its method for making and belongs to cushion cap construction. The blanking crack arises and develops along the direction of 45degree with the horizontal direction, but the prior resistant-plucking steel bars are installed vertically and oblique with the blanking crack, so the method does not give full play of the role of resistant-plucking steel bars. The features of the invention are: cross-installing steel bars which inner and outer are inclined around the steel legs (8) in cushion cap, the internal inclined steel bars (1) and the external inclined steel bars (2) are both orthogonal with the blanking broken surface(9) of the side approximately and the angle between them and the horizontal surface is 40degree-50degree; the ends of internal inclined steel bars (1) and the external inclined steel bars(2) are equipped with crotchs, the crotch butts on the horizontal or vertical reinforcement of the top and the bottom horizontal bar-mat reinforcement and is banded and fixed with the steel bar in p distribution which is vertical with the inclined steel bars. The invention restricts the blanking crack more effectively and limits new blanking cracks rising, enhances the anchorage capacity of cushion cap to steel legs and the ductili of cushion cap significantly.

The invention belongs to the technical field of structural engineering technique, more particularly relates to a flexure restriction stepping shock-absorption strut that consists of a flexure restriction strut, a lower sleeve, an upper sleeve, a wing plate and a girder, wherein, the lower sleeve is a columnar structure with a hollow middle part, the circumference of one end of the lower sleeve is provided with the wing plate and the other end thereof is sleeved at the bottom end of the flexure restriction strut, and the lower sleeve is fixed at one end of the flexure restriction strut by a bolt and the wing plate is fixed above a base by the bolt; the upper sleeve is a columnar structure with a hollow middle part, the circumference of one end of the upper sleeve is provided with a node plate, the upper sleeve is sleeved at the strut top of the flexure restriction strut and is fixed at the strut foot of the flexure restriction strut by the bolt and the node plate is fixed below the girder by the bolt. The invention has the advantages of no residual deformation and small shock effect and so on, and has excellent shock resistance performance and ductility and hysteresis energy consumption capability, thereby being a predominant shock-absorption energy consumption member.

The invention discloses an energy dissipation and shock absorption assembly type infilled wallboard structure. The energy dissipation and shock absorption assembly type infilled wallboard structure comprises a wallboard, the wallboard is a rectangular wallboard, the wallboard comprises two L-shaped sub-wallboards with the same size and shape; the horizontal contact interfaces of the two L-shaped sub-wallboards are filled with damping layers and are connected with each other through a bending deformation energy dissipation device in the plane of a steel plate; and the vertical contact interfaces of the two L-shaped sub-wallboards are located in the middle of the wallboard, impact buffer layers are fixedly arranged on the vertical contact interfaces correspondingly, and the space between theimpact buffer layers is filled with flexible filler. The energy dissipation and shock absorption assembly type infilled wallboard structure is provided with different levels of energy dissipation structures, the wallboard structure has the shock absorption and energy dissipation effects under the action of small earthquakes, medium earthquakes and large earthquakes; the wallboard structure has good deformation ability, the wallboard can be effectively prevented from being damaged under the conditions of small earthquakes and medium earthquakes; and the wallboard structure can play a supporting role under the condition of large earthquakes to prevent a wall body from collapsing.

The invention relates to an assembly type steel structure energy consumption type beam column joint and an assembling method thereof. The assembly type steel structure energy consumption type beam column joint comprises a steel frame column, an upper bracket and a lower bracket are vertically welded to the side face of the steel frame column, one end of the upper bracket is connected with one endof a shear plate through high-strength bolts, the other end of the shear plate is connected with a web of a steel frame beam through high-strength bolts, and the upper bracket and an upper flange of the steel frame beam are connected with a flange clamping plate through high-strength bolts; a lower flange of the steel frame beam is connected with a damper and the lower bracket through high-strength bolts. The assembly type steel structure energy consumption type beam column joint and the assembling method thereof have the advantage of improving the seismic energy consumption property of the structure.

This invention relates to a concrete composite shear wall concealed the eccentric supporting steel truss, in addition to a method for making it. Said shear wall allocates two-high mesh reinforcement in the shear wall plate, and adds blind steel shotcrete (10) and bearing bar (17) between the mesh reinforcement, characterized in that: the eccentric supporting steel truss is concealed in the concrete shear wall, and it comprises pattern steel column, pattern steel beam and pattern steel supporting, when the energy dissipating section reach to the yield point in shear, the rest section remains the no yield forced status. The bearing bar is located around the steer shotcrete and anchor fitted go beyond the pattern steel beam; the eccentric supporting steel and steer bearing bar composite the pattern steel concrete blind supporting, whose shape can be X, or the figure eight.

The invention discloses a self-resetting double-bow opposite-pull double energy dissipation supporting device. A belleville spring is adopted as a reset system, an arc-shaped steel plate is used as ametal energy dissipation element, in the case of the metal energy dissipation element, the arc-shaped steel plate belongs to a bending yield energy dissipation type, compared with other traditional metal energy dissipation modes, the energy dissipation performance of the arc-shaped steel plate is stable, damaged positions of the element are easy to control, in addition, the arc-shaped steel plateenergy dissipation element is easy to replace after an earthquake, recycling of integral support is realized, the economical and practical requirements are confirmed, and wide popularization is easy;in the case of a reset device, the price of the belleville spring is low, restoring force can be stably provided, and the influence on the temperature, humidity and other external factors is smaller;and no damage and low damage during the earthquake and self-resetting after the earthquake of the supporting device are realized, the structural construction is simple and clear, and the manufacturingand mounting process is simple and convenient.

The invention relates to a prestressed assembled board column structure with steel supports. The prestressed assembled board column structure consists of prefabricated columns (1) with built-in fittings (3), prefabricated boards (2) and steel supports (5), wherein the prefabricated boards are rib-dense prefabricated boards with ribs in dual directions; the built-in fittings and the prefabricated columns are molded integrally by pouring; the prefabricated columns are connected together with the prefabricated boards via prestress and friction force produced by prestressed ribs; and the steel supports are connected with the built-in fittings through high-strength bolts. Each built-in fitting consists of two pieces of single-angle steel (6), a node plate (7) and four bolts (9) with bent hooks; each node plate is spliced between the first sides of every two pieces of single-angle steel (6); and the bolts extend out of the second sides of the single-angle steel and are anchored in the prefabricated columns respectively. The prestressed assembled board column structure disclosed by the invention is convenient to install, is low in cost, is high in seismic resistance, and is suitable for the technical field of seismic resistance in building structures.

The invention provides a shock-resistant steel-bar concrete structure side coal bunker which comprises frame columns and frame beams. The shock-resistant steel-bar concrete structure side coal bunker is characterized in that the frame columns and the frame beams are respectively internally provided with steel bars, so as to form frame column steel bars and frame beam steel bars; the frame column steel bars are connected with the frame beam steel bars so as to form a steel framework; the parts, which correspond to the frame column steel bars and the frame beam steel bars, of the periphery of the steel framework are respectively bound with frame column steel ribs and frame beam steel ribs; the frame columns and the frame beams are respectively and internally filled with concrete inner cores, so that a steel-bar concrete frame is formed; the steel-bar concrete frame is provided with buckling restrained braces in a transverse direction and a longitudinal direction respectively. The shock-resistant steel-bar concrete structure side coal bunker achieves the technical purposes of reducing component sections, quickening the construction speed, improving the structural shock resistance and the like, can be used for saving construction materials, reducing the consumption of cement, gravel, sand, steel products and water and saving land, can be rapidly put into production again by virtue of simple maintenance after being subjected to great shock, so that the electric power supply is guaranteed and the society stability maintained.

The invention discloses a hydraulic inertia-capacitance balance tuning vibration damping device. The vibration damping device comprises a protective cylinder. A mass block is arranged inside the protective cylinder. Two opposite side faces of the mass block are connected with 'inertia-capacitance-damping' vibration damping units, the other two opposite side faces of the mass block are each connected with a positive-negative rigidity parallel-connection unit. Each 'inertia-capacitance-damping' vibration damping unit comprises two vibration damping cavities, a piston rod, a piston, a curved tubeand an induction control device, wherein the two vibration damping cavities communicate with each other through the curved tube, a power-on coil is wound around the local area of the curved tube, andthe power-on coil is connected with the induction control device; the mass block is connected with the pistons located in the vibration damping cavities through the piston rods. The two positive-negative rigidity parallel-connection units are located at the two sides of the mass block. Each positive-negative rigidity parallel-connection unit comprises an insulation cylinder, a magnet and a U-shaped soft steel bar. The mass block is connected with two rigidity rods. The two rigidity rods extend into the two insulation cylinders respectively to be connected with a linkage block. Two sleeved annular magnets are arranged inside each insulation cylinder. The two annular magnets are connected through U-shaped soft steel bars. The linkage blocks are connected with the annular magnet located at the inner ring.

The invention provides a damper for beam-column joints of a house. The damper comprises a first friction assembly, a second friction assembly, a first bracket assembly, and a second bracket assembly;the first bracket assembly is used for connecting the first friction assembly to the beam-column joints of the house, and the second bracket assembly is used for connecting the second friction assembly to the beam-column joints of the house; the first friction assembly includes at least two first friction plates disposed in an overlapping mode and a first connecting portion fixedly connected to the friction plates; the second friction assembly comprises at least two second friction plates disposed in an overlapping manner and a second connecting portion fixedly connected to the second frictionplates; and the first friction plates are interdigitated with the second friction plates, and the first connecting portion and the second connecting portion are connected in a hinged mode, so that the first friction plates and the second friction plates have a degree of freedom of rotation relative to an axis. The damper for beam-column joints of the house is simple in structure, small in occupied space, and obvious in shock absorption effect.

The invention discloses a connecting joint for an outer sleeve pipe type concrete filled steel tubular column and a steel girder end plate. The connecting joint comprises the concrete filled steel tubular column, a steel girder, an end plate, high-strength unidirectional self-fastening bolts and an outer sleeve pipe, wherein the edge of the outer sleeve pipe is welded to the outer side of a steel tubular column wall in the lap joint position of the steel girder and the concrete filled steel tubular column, and the end plate is located on the outer side of the outer sleeve pipe; the end of the steel girder is welded to the end plate; the unidirectional self-fastening bolts are inserted into bolt holes reserved in the end plate, the outer sleeve pipe and the steel tubular column wall from outside to inside; the heads of the unidirectional self-fastening bolts have a self-supply function, and riveting heads are formed on the inner side of the concrete filled steel tubular column; concrete is poured into the concrete filled steel tubular column. The connecting joint has good stress and anti-seismic properties, is simple in structure, definite in force transmission and fast in construction and facilitates structure layout. The problems that high-strength bolts are difficult to construct in a joint area, and the steel tubular column wall at the connecting joint of the unidirectional self-fastening bolts is prone to protrude outwards and deform due to lack of protection are solved. The connecting joint is a novel semi-rigidity connecting joint for the concrete filled steel tubular column and the steel girder.

Motorcycle tyres suited for agile motorcycles having low engine displacement have a tread pattern comprising grooves (21) which extend substantially in transverse direction from one lateral region of the tread band to the other lateral region of the tread band. Other grooves (22) extend substantially in longitudinal direction within a central region (M) of the tread band. Solid portions (23) are also located within the central region of the tread band an alternate with the latter grooves (22) in longitudinal direction.

The invention discloses an eddy current metal damper with multiplex damping and energy dissipating functions. The eddy current metal damper comprises an eddy current composite board and a metal damper, the eddy current composite board comprises a magnetism conducting board and an eddy current board, the magnetism conducting board is used for supporting and magnetism conducting, and the eddy current board is arranged at the inner side of the magnetism conducting board, is of a structure with an opened bottom face and is used for cutting a magnetic line generated by a permanent magnet, and generating eddy current to dissipate seismic energy; the top of the metal damper is embedded in the eddy current board, a gap is left, the metal damper comprises a metal board, and the metal board is filled with the permanent magnet. According to the eddy current metal damper, the limiting and yielding energy dissipating capacity of the metal damper and the electromagnetic induction energy dissipatingprinciple of the eddy current damper are comprehensively utilized, the damping and energy dissipating effects are achieved to the larger extent, the eddy current metal damper has the energy dissipating capacity large enough, and the limiting effect is also achieved.

The invention provides a vertical rib corrugated web steel-concrete combined coupling beam which at least comprises a plurality of steel flanges, steel corrugated webs, high-damping concrete, butt weld joints and reinforcing plates, wherein the steel flanges and the steel corrugated webs are assembled in a factory to form a coupling beam steel box which is used as a mold plate into which the high-damping concrete is cast on site. The steel corrugated webs have relatively large out-of plane stiffness, so that out-of plane deformation of a coupling beam outer steel plate can be effectively inhibited; the steel flanges and the steel corrugated webs are connected through the butt weld joints, so that connection strength can be ensured; due to adoption of the high-damping concrete, the couplingbeam has remarkable advantages in bearing capacities, energy consumption and rigidity; due to the structure of vertical rib corrugated webs, completeness of connection nodes of beams and walls can beensured. The coupling beam is applicable to connection of steel-concrete combined shearing walls in a high-rise hybrid structure system, is capable of meeting requirements of overall structures on deformation and energy consumption of coupling beams when being compared with a steel reinforced concrete coupling beam, and in addition is good in construction convenience, and the engineering manufacturing cost can be reduced while the construction progress is accelerated.

The invention discloses a full-length constrained solderless buckling constraint support, which comprises a core plate, a constraint plate and a filling plate. The core plate is sequentially providedwith a first end plate, an energy consumption section and a second end plate in the length direction; the constraint plate comprises a first constraint plate and a second constraint plate, wherein thefirst constraint plate and the second constraint plate are respectively overlapped on the outer sides of two opposite side surfaces of the core plate; the filling plate comprises two first end filling plates and two second end filling plates, the two first end filling plates are respectively overlapped on the outer sides of the two opposite side surfaces of the first end plate and are respectively positioned on the inner sides of the first constraint plate and second constraint plate, and the two second end filling plates are respectively overlapped on the outer sides of the two opposite sidesurfaces of the second end plate and are respectively positioned on the inner sides of the first constraint plate and second constraint plate. The whole length of the support is restrained without welding, the influence of welding seams on materials is eliminated, and the energy consumption capability is strong.