56results about How to "Consumes seismic energy" patented technology

The invention discloses a beam-column anti-seismic connecting joint and a connecting method thereof, and the problem of brittle fracture is solved. The beam-column anti-seismic connecting joint is used for connecting of a steel column and an I-shaped steel beam, and a first space and a second space are arranged on connecting parts of the two ends of the steel beam; a laminated component is arranged in the first space, and a grouting groove is formed in the second space; a transition connecting piece is fixed on the steel column, and an inserting groove of the transition connecting piece is a U-shaped groove structure with upward opening and is composed of a bottom plate and side plates on the two sides; a connecting part is connected with the inserting groove in an inserted mode, and high strength long bolts are fixed on the two side walls of the inserting groove; and high strength long bolts pass through a strip hole I in a steel sheet, a strip hole II in a beam web and a pin hole in a friction slice. By means of grouting, rigid connecting is formed between the steel beam and the transition connecting piece. Under the action of an strong earthquake, concrete blocks are damaged and crushed, then flexible connecting is formed between the steel beam and the transition connecting piece through the laminated component and the concrete blocks.

The invention discloses a square sleeve type self-reset metal friction damper. The square sleeve type self-reset metal friction damper comprises an outer sleeve and an inner cylinder arranged in the outer sleeve, the damper is connected with an external structure through connecting rods at the two ends, wherein the connecting rod at one end penetrates through the one end of the outer sleeve and isconnected with one end of the inner barrel, and the connecting rod at the other end is connected with the other end of the outer sleeve; and a reset spring is further arranged between the other end of the inner barrel and the other end of the outer sleeve, and a friction structure is arranged between the outer sleeve and the inner barrel. According to the square sleeve type self-reset metal friction damper, metal friction energy dissipation and SMA spring energy dissipation are achieved, damping force is increased by forming grooves in the inner barrel and forming bolt holes in the outer sleeve, and the self-reset function during the two states of being pressed and being pulled by hands is achieved; and the square sleeve type self-reset metal friction damper is simple in manufacturing, reasonable in stress, large in damping force, large in initial stiffness, large in energy dissipation capacity, low in price, stable in vibration reduction and energy dissipation and good in durability.

The invention discloses a fabricated building steel structure system and a construction method thereof. The fabricated building steel structure system comprises a three-dimensional frame system constituted by steel pipe columns and steel beams, the steel pipe columns are a polygon prism formed by a plurality of steel belts which are welded, inserting parts are arranged on the steel pipe columns, the ends of the steel beams and the inserting parts are connected in an inserted mode, and emulsified asphalt is arranged at inserting points according to needs. According to a technology, fully-coatedstructures are formed between the two ends of the steel beams and the inserting parts, the effective area of coating is large, the bonding strength is higher, and thus shock resistance and the firm degree of joints are much larger than those of a traditional connecting technology; and through using of the emulsified asphalt, cold and heat broken bridges can be formed at the joints, and building energy conservation is facilitated.

The invention discloses a fabricated subway station central column and arc-shaped rubber supporting seat self-resetting shock absorption structure. The fabricated subway station central column and arc-shaped rubber supporting seat self-resetting shock absorption structure comprises a subway station space composed of a precast top plate, a precast bottom plate, precast side walls and a precast central column, the joints of the precast side walls and the precast top plate and the joints of the precast side walls and the precast bottom plate are provided with arc-shaped rubber supporting seats enabling a whole structure to form 'hinge connection' from 'rigid connection' correspondingly, prestressed steel bars penetrating through the two edges of the arc-shaped rubber supporting seats and communicating with the precast top plate and the precast bottom plate are arranged in the left sides and the right sides of the precast side walls correspondingly, the two end tips of the prestressed steel bars are anchored and fixed through nuts, the precast central column is of an 'I-shaped' structure, the two end tips of the precast central column are connected with the middle of the precast top plate and the middle of the precast bottom plate through mortise and tenon joint structures correspondingly, through the mortise and tenon joint structures, under the action of an earthquake, the bending moment at the joint position between the central column and the station top plate and the joint position between the central column and the station bottom plate is released, and thus the damage to the station is reduced; and the central column is precast through steel cylinder concrete, the strength of the central column is greatly improved, deformation of the central column is reduced, and theearthquake resistance ability of the central column is improved.

The invention relates to a vertical variable-rigidity seismic isolation bearing, belonging to the field of structure ventilating control. The bearing comprises steel tubes, rubber, a lead core, a variable-rigidity guiding device. The variable-rigidity guiding device includes a shaft, a top plate and tapered variable-rigidity curve plate, wherein the upper end of the shaft is fixedly connected withthe top plate, one end of the tapered variable-rigidity curve plate is fixedly connected with the top plate, the other end is fixedly connected with the side surface of the shaft, multiple layers ofrubber and multiple steel tubes are alternatively arranged on the shaft below the variable-rigidity curve plate, the lead core arranged horizontally intersects with the shaft through the multiple layers of rubber and the multiple steel tubes, the lower end surfaces of the rubber and the steel plates form a tapered space having a small upper end and large lower end. The bearing has large initial rigidity and small yield rigidity in the vertical direction, and has enough vertical deformability and reset ability, after the lead yields, the vertical seismic isolation rigidity can be adjusted according to the vertical deformation, thus vertical earthquake can be effectively insulated, and the bearing the stable when no earthquake occurs.

The bi-aluminum alloy plate assembly-type buckling-constrained support described in the present invention uses upper and lower channel steels and middle I-steel to fix the core plate on both sides of the I-steel through bolts, which can provide a larger overall bending stiffness of the support and is easier to meet Constraint ratio requirements, the support can quickly enter the plastic energy dissipation state when it is subjected to reciprocating loads, and consume seismic energy to a greater extent, and the core plate is made of aluminum alloy, which can reduce the structural weight to a certain extent. , easy to disassemble, easy to replace damaged parts after the earthquake, outstanding economic and social benefits.

The invention relates to the technical field of structural engineering, in particular to a connection node of a steel structure. Including steel columns and steel beams, the steel beams are connected to the steel columns through the node base and the node roof, and shear bolts are set between the steel beams and the node roof; a damping cylinder is set in the node base, and the damping cylinder is connected to the The steel beams are movable and hinged, and disc springs are set between two adjacent damping cylinders and between the damping cylinders and the joint base; the steel beam shakes left and right in the earthquake and drives the damping cylinders to move up and down, and the damping cylinders move up and down during the earthquake. The disc spring is stretched or compressed so that the disc spring cooperates with the damping cylinder to dissipate the seismic energy. The steel structure connection node of the present invention forms triple energy consumption measures through the mutual cooperation of shear bolts, damping cylinders and disc springs, which greatly improves the seismic capacity of the nodes while ensuring the connection strength of the nodes, and ensures the safety of the building reliable.