55results about How to "Realize self-resetting function" patented technology

The invention relates to a wheel leg bounce movable robot, wherein it uses four-wheel body, with front and back swinging wheel legs and bounce structure. The invention combines wheel structure and leg structure, to change motion mode via different conditions. Via the back swinging wheel leg, when the robot is turnover, it can return by itself. The bottom bounce structure can fly over the obstacle; the table with CCD camera is mounted in the detecting table which can lift, to expand the view sight.

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 discloses a replaceable transversely-arranged prestressing tendon self-resetting energy dissipation bridge pier, and belongs to the field of structural engineering earthquake resistance and reduction. The replaceable transversely-arranged prestressing tendon self-resetting energy dissipation bridge pier comprises a prestressing steel bar concrete column, a longitudinal prestressing tendon, common stirrups, a rubber layer, reinforcing stirrups, transverse prestressing tendons, anchorage devices and a foundation. The transverse prestressing tendons of the bridge pier provide elastic restoring force, meanwhile, the rubber layer dissipates energy of the earthquake under the action of the earthquake, the self-resetting energy dissipation function of the bridge pier under the action of normal loads and the earthquake can be achieved, and finally the energy dissipation and earthquake disaster reduction functions of the whole bridge pier are achieved. The replaceable transversely-arranged prestressing tendon self-resetting energy dissipation bridge pier has the advantages of being capable of conducting self-resetting, being replaceable, reducing the earthquake disaster, dissipating the energy and the like.

The invention relates to an energy-dissipation self-resetting bridge pier column structure, which belongs to the field of earthquake resistance and shock absorption of structural engineering. The energy-dissipation self-resetting bridge pier column structure comprises a reinforcement concrete column, a stay cable, a damping energy dissipation device, a foundation, a longitudinal bar, a hoop bar, a curved reinforcing steel bar, a rubber layer, a stay cable anchor tool, an anchor rod and an anchor rod anchor tool, wherein the damping energy dissipation device comprises a spring, a liquid viscous damper and a gear. The damping energy dissipation device is cable-stayed to the top end of the reinforcement concrete column through the stay cable, the self-resetting function of a pier column is realized through the spring in the damping energy dissipation device, and the energy dissipation of the pier column in the reciprocating movement in the earthquake can be realized through the liquid viscous damper in the damping energy dissipation device. In addition, the energy dissipation function under the effect of the earthquake can be realized through the rubber layer between the reinforcement concrete column and the foundation, so that the self-resetting energy dissipation function of the bridge pier column system is realized, and the energy-dissipation shock absorption of the bridge can be realized.

The invention relates to a self-resetting energy-consuming steel beam capable of eliminating the frame expansion effect and a construction method thereof. The two ends of the H-shaped steel beam are wedge-shaped cutting, and a turning space is reserved on the upper part; the lower flange of the H-shaped steel beam passes through the welded wing The flange stiffener is indirectly connected to the flange of the H-shaped steel column; the shear plate is provided with a long hole so that the beam end can rotate relatively freely; The stranded wire passes through the reserved hole between the stiffener connector and the flange of the H-shaped steel column, and then prestresses the shape memory alloy stranded wire and anchors it through the anchor; the steel beam has a self-resetting function under earthquake action, and can Dissipate the energy input by the earthquake, and at the same time avoid the expansion effect of the overall frame when the beam-column joints appear openings.

The invention discloses a self-resetting viscous damper based on a combined spring, which includes a viscous damping energy-consuming device, a spring return device and a force transmission device. The force device includes an external force transmission component and an internal force transmission component; the external force transmission component includes a cylinder, the viscous damping energy dissipation device and the spring return device are installed in the cylinder, the internal force transmission component is a guide rod, and the guide rod is along the cylinder body. Arranged in the axial direction, the piston in the viscous damping energy dissipation device is fixedly connected to the guide rod. The spring return device includes a return spring and two pressure bearing plates arranged at both ends of the return spring in the axial direction. The return spring and the pressure bearing plate All are sleeved on the periphery of the guide rod, and can slide relative to the guide rod. The invention has excellent self-resetting ability and controllability, can consume energy stably under high and low frequency excitation, has overload protection characteristics, symmetrical tension and compression performance, convenient assembly, and easy disassembly and maintenance.