392 results about "Earthquake energy" patented technology

The invention relates to a friction energy consumption type node connection device for a self-centering pier column structure, which is a device used for connecting a bridge pier or a frame column with a pile cap (a foundation), so as to improve the energy consumption of the pier column structure under the action of earthquake and eliminate or reduce the residual deformation and the injuries of the structure. The device comprises a pier column strengthening steel plate, a foundation pre-embedded steel plate, an angle steel, a friction bolt, a friction plate, unbonded prestressed tendons, an anchor bolt and the like. The device can connect a concrete pier column and the foundation into a whole through the unbonded prestressed tendons which are vertically arranged. When the earthquake strength achieves a certain degree, the pier column-foundation contact surface is open, and the pier column can produce a certain rotation relative to the foundation. A friction device can dissipate earthquake energy through friction at this time, and the prestress provided by the prestressed tendons can recover the structure to the initial position after the earthquake. A pre-embedded part at the end part of the pier column is used for improving the local bearing pressure of the concrete when the pier column rotates relatively.

The invention discloses a self-reset beam column friction energy consumption node which comprises an upper flange plate, a lower flange plate, a web and a self-reset angle brace. One end of the upper flange plate, one end of the lower flange plate and one end of the web are all fixedly connected to the side face of a steel frame column to form a connecting short beam. One end of the connecting short beam is connected to the steel frame column, and the other end is connected with a steel frame beam. The joint of the connecting short beam and the steel frame beam can generate left-right displacement when bearing external force. The self-reset angle brace is connected with the steel frame column and the steel frame beam through ear plates at the two ends respectively. Through the sliding friction of a friction base plate at the upper flange plate or the lower flange plate or the web and the self-reset angle brace at the lower flange position of the steel frame beam, earthquake energy is consumed, and the node can automatically restore the initial state after an earthquake. The self-reset beam column friction energy consumption node is simple in structure and convenient to construct and can be widely applied to various steel structure buildings.

The invention discloses a composite three-dimensional shock isolation support of a sandwich rubber-high damping disc spring. The composite three-dimensional shock isolation support of the sandwich rubber-high damping disc spring comprises a horizontal shock isolation support, a disc spring vertical shock isolator, a guide rod, a cylindrical viscoelastic damping layer, an external cylindrical vertical connection steel plate, an internal cylindrical vertical connection steel plate, a lower connecting plate, a middle connecting plate and an upper connecting plate. The composite three-dimensional shock isolation support of the sandwich rubber-high damping disc spring isolates horizontal earthquakes through the horizontal shock isolation support, improves certain damping, and reduces vibration of a structure under the effects of the horizontal earthquakes. The disc spring vertical shock isolator isolates vertical earthquakes, the cylindrical viscoelastic damping layer increases damping of the shock isolation support under the effects of the vertical earthquakes, vertical earthquake energy transmitted to the structure by the earthquakes is consumed, and swing of the structure under the effects of the vertical earthquakes is reduced.

The invention discloses a shock resisting and reducing structure spanning movable fault tunnel, for reducing the influence of the movable fault on the tunnel and effectively improving the shock resisting and reducing performance of the tunnel. A lining structure of the tunnel comprises an inner liner (10) and an outer liner (11); a shock reducing area extending toward the two sides of the movable fault along the vertical direction of the tunnel is set at the rock movable fault part, and the shock reducing area is composed of a foam concrete layer (20) filled between the inner liner (10) and the outer liner (11). The shock resisting and reducing structure spanning movable fault tunnel can effectively absorb the earthquake energy, resist main earthquake load, stop the vertical transmission of the movable fault area load, and reduce the influence of the movable fault on the tunnel; thus, the invention has good shock resistance and reducing effect and can guarantee the safety of the lining structure spanning the movable fault tunnel.

The invention discloses a self-resetting steel framework comprising a steel framework column, a steel framework beam, a self-resetting column foot and a self-resetting beam-column friction energy consumption joint. One end of the self-resetting column foot is connected with a foundation, the other end of the self-resetting column foot is connected with one end of the steel framework column, and the other end of the steel framework column is connected with the steel framework beam through the self-resetting beam-column friction energy consumption joint; and the connecting position of the steel framework beam and the steel framework column can make horizontal displacement when bearing the external force effect. According to the self-resetting steel framework, earthquake energy can be dissipated through the self-resetting column foot and the self-resetting beam-column friction energy consumption joint, the energy consumption performance of the overall structure is improved significantly, self-resetting force can be provided, and the self-resetting steel framework can return to the initial state when an earthquake occurs. The self-resetting steel framework is convenient to connect and easy to construct and has high energy consumption capacity and self-resetting capacity.

The invention discloses a fabricated beam-column bolt joint connection device with a cover plate and double flanges, and belongs to the technical field of structural engineering. The fabricated beam-column bolt joint connection device comprises an upper column flange plate (2), an upper column square-steel tubular column (1), column base flange plates (3) and (5), a column base square-steel tubular column (4), a shear plate (8), a lower column flange plate (6), a lower column square-steel tubular column (7), an H-shaped steel beam C, an attaching plate D and a clamping plate E. The upper square-steel tubular column and the lower square-steel tubular column are welded to the flange plates integrally in a factory. A column base in the middle is formed by integral welding of the upper flange plate, the lower flange plate, the middle square-steel tubular column and the shear plate in the factory. The welded portions can be completed in the factory, bolts are adopted for on-site assembly and are fastened conveniently and quickly, construction speed and quality are increased greatly, and the fabricated beam-column bolt joint connection device is suitable for the development of fabricated steel structures. According to the fabricated beam-column bolt joint connection device, joints are semi-rigid, with high ductility and bearing capability; clamping plates are made from steel material with low strength, so that earthquake energy can be dissipated fully and post-earthquake restoration is facilitated.

The invention provides a multilayer fabricated concrete wallboard structure system. The multilayer fabricated concrete wallboard structure system comprises a foundation, prefabricated wallboards and post-tensioned unbonded prestressed bars. The prefabricated wallboards are arranged on the foundation, at least two prefabricated wallboards are vertically spliced, and the prefabricated wallboards and the foundation are connected into a whole through the unbonded prestressed bars. One end of each unbonded prestressed bar is anchored in the foundation, and after being connected with the prefabricated wallboards in series, the unbonded prestressed bars are anchored to the ends of the prefabricated wallboards. Horizontal seam connecting pieces are arranged at the corners of the prefabricated wallboards, and the vertically-spliced prefabricated wallboards are connected and positioned through the horizontal seam connecting pieces. According to the multilayer fabricated concrete wallboard structure system, dry construction is adopted, fabrication accuracy and fabrication speed are high, and the requirement for building industrialization development is met. Because the multilayer fabricated concrete wallboard structure system has high capacity for dissipating earthquake energy, when an earthquake hazard happens, the requirement that the multilayer fabricated concrete wallboard structure system is not damaged in a small earthquake, can be recovered in a medium earthquake and does not collapse in a strong earthquake can be met, and the safety level of a multilayer fabricated building can be substantially improved.

The invention provides a combined column foot capable of being repaired in situ, which is good in anti-earthquake performance and capable of being rapidly repaired after an earthquake. The combined column foot comprises a steel plate bucket, a damper with one end connected to the outer side surface of the steel plate bucket, and a connection plate connected with the other end of the damper, wherein the connection plate is fixedly installed on a ground beam corresponding to a reinforced concrete column, the damper is provided with a detachable flexible steel plate, and the flexible steel plate is vertically placed. By arranging the damper (the flexible steel plate), in case of a small earthquake, the flexible steel plate used as an energy-consuming plate of the damper is capable of generating a concentrated deformation to absorb most of earthquake energy due to a relatively good plasticity; in case of a strong earthquake, the flexible steel plate generates a shear yield to consume the earthquake energy, thus greatly protecting the reinforced concrete column from being damaged or collapsing and further achieving good anti-earthquake performance; meanwhile, because the flexible steel plate is detachable, the damaged flexible steel plate can be taken off and replaced by a complete flexible steel plate after the strong earthquake, thus realizing post-earthquake rapid repair.

Provided is a novel post-earthquake easy-to-repair steel irregular column- center support. Double-channel steel beams are connected with irregular columns through beam end sealing plates to form a welding-gap-free full-bolt connection mode. Prestress steel cables are applied to welding-gap-free full-bolt nodes to form prestress self-resetting nodes. Axial and horizontal stress performance of the bottoms of the columns are optimized through reinforcing plates by self-resetting column legs and prestress column legs, bending-proof steel plates are mainly used for dissipating earthquake energy, and shearing plates are used for preventing shearing force from being too large and leading to local bending of the bottoms of the columns. Key members of the prestress column legs are prestress pull rods which are used for providing prestress for the columns to enable the columns to be closely connected with the beams, the column legs can be in rigid connection similarly when the torque borne by the column legs is small, and a post-earthquake self-resetting capability is achieved. By means of the center support, the structure achieves better side shock resistance.

The invention belongs to the structural engineering technical field, particularly to a friction-type limitation tilting shock absorption post. The upper and the lower posts of a device are in splicing connection; posts are connected with a splice plate through a high strength bolt, and a ribbed stiffener is arranged on the splice plate on the outer side of a section steel post flange; the section steel post provides vertical bearing force and restoring force, so that the sliding generated by the friction force between the section steel post and the splice plate can be overcome to enable the upper structure to tilt; the arrangement of an oblong hole stops the structure from tilting, thereby enabling the side displacement of the structure not to be too large and preventing the structure from tilting; and the friction between the section steel post and the splice plate can dissipate the earthquake energy, and a friction sheet can increase friction effect and transfer the vertical force through the friction when the posts are fixed. The invention has the advantages of structure side-displacement limitation, small residual deformation, good shock resistance performance, ductility, hysteretic energy consumption capacity, convenient installation and replacement, installations on different floors, and realization of tilting of local floors. Therefore, the shock absorption post is an excellent structural member with shock resistance and energy consumption.

The invention mainly discloses a pulling-resistant bidirectional sliding friction bearing applied to the field of bridge, flume and building engineering. The bearing comprises upper and lower bearing plates, upper and lower sliding blocks, a pulling-resistant system and a limiting pulling-resistant device, wherein the upper sliding block and the lower sliding block can horizontally slide on the upper bearing plate and the lower bearing plate respectively; and a pulling-resistant disc is embedded into a pulling-resistant spherical segment. In the state of a normal load and a small earthquake, the rotation between the pulling-resistant disc and the pulling-resistant spherical segment of the bearing adapts to that of an upper structure under the temperature and the normal load; in the state of a big earthquake, the vibration cycle of a structure system can be changed and the partial earthquake energy can be dissipated by the sliding movement of the sliding block so as to reduce the earthquake response of the upper structure; the pulling-resistant system can be used for preventing the upper structure from being overturned or collapsed due to a pulling force with the control effect caused by larger vertical ground motion component under the action of a near field and a near-fault earthquake; and the bearing is strong in pulling-resistant capability and good in durability, has a definite seismic mitigation and absorption mechanism, and is suitable for various structures such as bridges, flumes, buildings and the like with high seismic performance requirements.

The invention relates to a ribbed composite wallboard used in a ribbed structural system, which comprises a gridding cavity consisting of reinforced concrete beams and columns, wherein more than two precast light blocks are filled in the gridding cavity; the light blocks are regular block bodies made from raw materials including industrial slag, fly ash, cement perlite, quartz sand particles and the like; the size of the light blocks is matched with that of the gridding cavity which is provided with gaps allowing the light blocks to move; the light blocks are arranged in a longitudinal sequence mode, a transverse sequence mode or a longitudinal and transverse sequence mode; and the contact surfaces between the adjacent light blocks can overcome friction to perform relative movement. Through changing the number of the friction surfaces among filling materials in the ribbed composite wallboard, the ribbed composite wallboard achieves the effect of consuming earthquake energy through component changes.

The invention relates to an assembly honeycomb steel plate shear wall and belongs to the technical field of structural engineering. The assembly honeycomb steel plate shear wall comprises an internal embedded honeycomb steel plate, angle steel, high-strength bolts, vertical edge members, frame pillars, frame beams, connectors and a pressed steel plate. The internal embedded honeycomb steel plate is connected with the angle steel and the edge members; the angle steel is connected with the frame beams. The assembly honeycomb steel plate shear wall belongs to a novel lateral force resistant member of a high-rise building or other structures, has the characteristics of good earthquake resistance, high ductility, full energy consumption hysterisis loop and the like and is an excellent earthquake energy consumption member.

The invention discloses a concrete column base joint containing a high-ductility replaceable energy-dissipation connecting assembly. The concrete column base joint is arranged on the bottom of a rectangular-section column of a concrete structure, and comprises a concrete column, the high-ductility replaceable energy-dissipation connecting assembly and a concrete base, wherein the high-ductility replaceable energy-dissipation connecting assembly is separately welded with the concrete column and a steel connecting block pre-embedded in the concrete base to form a continuous reliable force transmission system. The bottom of the concrete column is equipped with a column bottom reinforcing core column, so that column bottom pressure can be borne under action of an earthquake, and damages are avoided; and the high-ductility replaceable energy-dissipation connecting assembly is mounted on four side surfaces of the column base joint, so that stressed longitudinal bars on the original positionsare replaced, and therefore, hysteretic behavior can be utilized to dissipate earthquake energy during a medium earthquake or a big earthquake, and damages can be controlled inside.

The invention provides a method capable of dissipating the effect of a horizontal earthquake force during an earthquake and a bridge bearing. In the method, an elastic-plastic damper, a speed locking device and a movable bearing are combined together to form the combined bridge bearing, and the effect of the horizontal earthquake force on a bridge is dissipated through the combined bridge bearing during an earthquake; under normal circumstances, the speed locking device moves slowly, and the elastic-plastic damper does not work; and in case of earthquake, the speed locking device executes a locking function so as to drive the elastic-plastic damper to move, and the elastic-plastic damper quickly enters a plastic stage from an elastic stage and starts energy consumption so as to reduce damage of earthquake energy on the bridge. The bridge bearing provided by the invention has the beneficial effects of meeting normal working condition of the bridge and playing a role of protecting the bridge.

The invention discloses a buckling restrained steel plate shear wall with out-plane deformation space and belongs to the technical field of structural engineering. The shear wall comprises an embedded steel plate, concrete cover plates, edge members and at least eight longitudinal stiffening ribs, wherein the edge members comprise edge beams and edge columns; the embedded steel plate is fixedly connected with the edge beams; the longitudinal stiffening ribs are symmetrically fixed on two sides of the embedded steel plate; every two adjacent longitudinal stiffening ribs on the same side form a longitudinal stiffening rib group; the distance between every two adjacent longitudinal stiffening rib groups ranges from 200 to 300 mm; all the concrete cover plates are fixed on the embedded steel plate between the two longitudinal stiffening ribs of each longitudinal stiffening rib group through connecting pieces; clearances are reserved between the concrete cover plates and the edge members, the reinforcing parts of the longitudinal stiffening ribs and the embedded steel plates. The shear wall has higher lateral stiffness and later bearing capacity and can effectively dissipate earthquake energy under the action of a rare earthquake.

The invention provides an earthquake energy dissipation structure of a multi-pillar pier. The earthquake energy dissipation structure of the multi-pillar pier aims to improve the vibration reducing performance of a bridge so that the bridge keeps the structural integrity after an earthquake. The earthquake energy dissipation structure of the multi-pillar pier comprises a left side pier pillar (11) and a right side pier pillar (12) which are adjacent to each other, wherein an energy dissipation cross tie beam (20) is arranged between the left side pier pillar (11) and the right side pier pillar (12) or a plurality of energy dissipation cross tie beams (20) are longitudinally arranged at intervals between the left side pier pillar (11) and the right side pier pillar (12); the energy dissipation cross tie beam (20) comprises a steel structure cross beam (22), and soft steel energy dissipation members which are fixedly arranged at the two longitudinal ends of the steel structure cross beam (22); the soft steel energy dissipation members are connected with the left side pier pillar (11) and the right side pier pillar (12).

In an earthquake resisting design method of a PC construction, a column and a beam, which are high-strength precast prestress concrete members, is joined by binding juncture with a prestressing tendon. A grout is filled and bonded. A first stage linear resilient design is employed, where all construction members are not damaged, for earthquakes up to a predetermined earthquake load design value. A second stage linear resilient design is employed, where earthquake energy is absorbed by breakage of the bond of the grout, and principal construction members are not damaged, for earthquakes exceeding the predetermined earthquake load design value. By employing a non-linear resilient design in which the first stage linear resilient design and the second stage linear resilient design is combined, an earthquake-resisting design level is significantly increased, the construction can resist earthquakes exceeding a seismic intensity 6 upper.

The invention discloses a damage repairing assembly type combined column with a self-reset function. The combined column comprises a lower column segment connected to the upper portion of a ground beam, an upper column segment connected to the upper portion of the lower column segment and a damper connected between the lower column segment and the ground beam; the lower column segment comprises a reinforced concrete column body and a steel sleeve, wherein the lower end of the reinforced concrete column body is sleeved with the steel sleeve from bottom to top; the damper comprises a plurality of soft and rigid damping plates arranged at intervals along the periphery of the lower column segment, the soft and rigid damping plates are vertically placed, the inner ends of the soft and rigid damping plates are connected with the steel sleeve, the outer ends of the soft and rigid damping plates are connected with T-shaped connecting plate components, and the bottoms of the T-shaped connecting plate components and the ground beam are connected together; the soft and rigid damping plates are weak in strength and good in plasticity, concentrated deformation can be generated, most earthquake energy can be absorbed, during the strong shock, the e soft and rigid damping plates generate violent deformation and even are damaged, prestress applied by prestress anchor tools can help the reinforced concrete column body of the lower column segment to be reset by itself, oversize deformation is not generated, after the shock, dismounting is carried out, the damper is replaced, and in-situ rapid repairing of a house after the shock can be achieved.

The invention belongs to the technical field of structural engineering, and particularly relates to a mixed integrated high-rise structural system, which comprises main towers 1, connectors 2 in a strong connection mode and connectors 3 in a weak connection mode. The mixed integrated high-rise structural system is characterized in that each main tower 1 is a tube structure or a frame and core tube structure with symmetric rigidity and mass arrangement, each connector 2 in the strong connection mode is a spatial truss consisting of horizontal steel truss arranged along a floor and vertical diagonal web members jointly, the spatial trusses are reliably and rigidly connected with the core tube structures of the main towers, each connector 3 in the weak connection mode is a single-layer light steel truss connected with the corresponding main tower by seismic isolation supports, and a sufficient space is reserved between each connector and the corresponding tower, so that the connectors are prevented from being collided with the towers under effects of severe earthquake. The mixed integrated high-rise structural system is applicable to a high-rise structural system with multiple connectors, has a series of advantages of large structural rigidity adjustment range, low integral structural deformation, high earthquake energy dissipation capacity, convenience in repair after the earthquake and the like, and is a superior integrated high-rise structural system.

The invention provides an I-shaped energy dissipation connecting part for a coupled shear wall structure and belongs to the technical field of prefabricated concrete component structures. The I-shapedenergy dissipation connecting part comprises a T-shaped connecting piece I, a T-shaped connecting piece II, friction plates and friction type high-strength bolts. T-shaped structural parts are arranged between shear wall columns and a connecting beam, the friction plates and the friction type high-strength bolts are arranged between the structural parts, and the friction energy dissipation function is realized. The I-shaped energy dissipation connecting part has good energy dissipation capacity, has sufficient strength and rigidity and high energy dissipation efficiency and can have a function of protecting a main structure by dissipating earthquake energy when the main structure is under the action of an earthquake, besides, the connecting beam can be timely repaired and replaced when damaged, and the cost is reduced.

The invention discloses a base oscillating shock-isolation device for a pile foundation bridge pier. The base oscillating shock-isolation device is characterized by consisting of an overturn-preventing steel strand or reinforcing bar, a pier body, a spread foundation, rubber, a separation face and a foundation. The pier body is connected with the spread foundation and is perpendicular to the same and embedded into the same; the four sides of the spread foundation are filled with the rubber; the overturn-preventing steel strand or reinforcing bar, with one end anchored to a pier top and the other end anchored to the foundation, is inserted into the pier body. According related design specifications, the pier body is separated from the foundation, earthquake energy to the bridge pier is filtered by means of oscillating during design earthquake or rare earthquake, so that application function requirements of the bridge pier under normal service load and frequent earthquake are guaranteed. As the pier body and the foundation are separated in the design earthquake or rare earthquake, both the bridge pier and the foundation can be protected against earthquake.

The invention discloses an assembly type beam column joint and a construction method thereof. An upper flange of a connecting pair is connected with an upper flange of an H-shaped steel beam through bolts; a lower flange of the connecting pair is connected with a lower flange of the H-shaped steel beam through bolts; holes, which are connected with the bolts, of the upper flange and the lower flange of the connecting pair are slot holes of which the length directions are positioned in the length direction of the H-shaped steel beam; and an end plate of the connecting pair is attached to a concrete column. The construction method comprises the following steps of (1) manufacturing the concrete column; (2) manufacturing the H-shaped steel beam and the connecting pair; (3) mounting a particle damping energy-consuming device; (4) connecting the H-shaped steel beam and the connecting pair; and (5) connecting the column and the beam. When an earthquake comes, the bolts can slide in the slot holes, and earthquake energy can be consumed. Even if the joint deforms greatly, attenuation of strength and rigidity and participation deformation are small, residual deformation of the joint can be reduced after the earthquake, and the assembly type beam column joint has good deformation recovery capability and structure function recoverability.

The invention discloses a dissipative element of a grouting sleeve, comprising an inner tube and an outer tube which are arranged coaxially. The slit between the lap sections of the outer tube and the inner tube is provided with expanding cement slurry, and an expanding cement sheath is formed after the expanding cement slurry is cured. The pretension force of the expanding cement slurry enables the friction force of the contact surface between the expanding cement sheath and the sleeve body to be increased. At normal operating condition, the dissipative element can be used as ordinary support to bear axial loading; with the effect of earthquake loading, the dissipative element consumes and absorbs the earthquake energy by relative sliding of inner and outer tubes. The member has no too high requirement for machining precision, thereby saving steel material and having low cost. After the dissipative element is damaged and inactive in earthquake hazard, the dissipative element of a grouting sleeve is just needed to be replaced and the operation is very convenient.

The invention provides a function-restorable bridge. The function-restorable bridge comprises a pier, a bent cap, a main girder, a first inner stop block, a second inner stop block, a first outer stop block, a second outer stop block, a first transverse self-restoring inhaul cable, a second transverse self-restoring inhaul cable and a lengthways self-restoring inhaul cable, wherein the bent cap is arranged on the upper end surface of the pier; the main girder is arranged on the upper end surface of the bent cap; the first inner stop block and the second inner stop block are both arranged on the upper end surface of the bent cap and are respectively positioned on the left side and the right side of the main girder; the first outer stop block is arranged on the upper end surface of the bent cap and on the left side of the first inner stop block, and the second outer stop block is arranged on the upper end surface of the bent cap and on the right side of the second inner stop block; the first transverse self-restoring inhaul cable is connected with the first outer stop block and the right side surface of the main girder respectively; the second transverse self-restoring inhaul cable is connected with the second outer stop block and the left side surface of the main girder respectively; the lengthways self-restoring inhaul cable is connected with the main girder and the bent cap respectively. The function-restorable bridge provided in the embodiment of the invention can effectively consume earthquake energy, and can be resorted quickly after being damaged.