31results about How to "Energy consumption mechanism is clear" patented technology

The invention discloses a friction-lasso composite energy-consumption type assembly style steel beam column system capable of vibrating multi-levelly. The composite energy-consumption type assembly style steel beam column system can be prefabricated and assembled quickly on the spot; the occupied space is small. In the case of many earthquakes or wind vibrations, a limiting type friction energy-consumption device in the system can locally strengthen a plastic hinge area of a steel beam, the energy of the structure is dissipated through the friction and a small-titled trans-lasso energy-consumption device provides anti-lateral stiffness for the structure; when rare earthquakes occur, the limiting type friction energy-consumption device locally strengthen the plastic hinge area and limit sliding at the same moment. The small-titled trans-lasso energy-consumption device in the system makes a damper fully consume energy by amplifying the horizontal displacement. The system achieves multi-level control energy consumption and the energy consumption mechanism is clear, and has strong energy consumption capacity; the system can reduce the main injury and damage of the steel structure, and can be applied to steel structure buildings where the installed position of the energy-consumption device is limited and the requirement to the using space is high.

The invention discloses a fabricated steel structure containing a replaceable beam end rotating energy dissipation hinge and a small inclined-span lariat. The fabricated steel structure comprises fabricated steel beams, fabricated steel columns, dampers, joint plates, bolt pins, lug plates, lower connecting rods, upper connecting rods, ladder type haunched beams, bolts, end plates, front and rear cover plates, rotating plates, annular grooves, shearing blocks, shearing keys, rotating shafts, flange notches and web rib strips. A plastic-hinge region is locally weakened through the beam end rotating energy dissipation hinge of the fabricated steel structure; not only is the design concept of strong columns and weak beams reflected, but also the energy of the structure is dissipated through shearing deformation; while providing resist lateral stiffness for the structure, a small inclined-span lariat energy dissipation device conducts full energy dissipation of the dampers by enlarging horizontal displacement; and the fabricated steel structure is definite in energy dissipation mechanism and has strong energy dissipation capacity under the moving action of an earthquake, main damage and destroy of the steel structure can be alleviated, and the structure is easy to replace after the earthquake or the damage.

The invention provides a self-resetting shearing-constrained buckling damage-controllable fabricated beam-column joint. The self-resetting shearing-constrained buckling damage-controllable fabricatedbeam-column joint comprises a prefabricated column (1), a prefabricated beam (2), a pin shaft (8), a shear buckling plate (9) and an elastic piece (12); the prefabricated column (1) and the prefabricated beam (2) are fixedly connected with a column double-T-shaped connecting plate (6) and a beam T-shaped connecting plate (7) respectively; the column double-T-shaped connecting plate (6) is connected with the beam T-shaped connecting plate (7) in a hinged mode through the pin shaft (8); the shearing buckling plate (9) is constrained between a first constraining plate (10) and a second constraining plate (11) through bolts; and the shearing buckling plate (9) and the elastic piece (12) are respectively fixed between the column double-T-shaped connecting plate (6) and the beam T-shaped connecting plate (7) through bolts and clamps (13). Deformation and energy consumption of beams are concentrated at connecting positions, energy consumption and flexural rigidity are provided for multiple benches, large plastic damage to components is avoided, and the structure function can be rapidly recovered.

The invention relates to a friction self-locking type prefabricated section spliced pier connecting device. Prestressed tendons in a traditional section spliced pier connecting device are omitted. A concrete-filled steel tube mode is adopted for locally reinforcing a connecting area. An outer casing tube with a larger diameter and an inner casing tube with a smaller diameter are adopted as concrete-filled steel tubes at the two ends for connection respectively. The inner steel tube and the outer steel tube are connected in a sleeved mode in the section splicing process, self-locking pins are struck into the part between the inner steel tube and the outer steel tube, friction self-locking is made to be formed between the inner casing tube and the outer casing tube, and the tight connection between sections is ensured. Due to the fact that the thickness of the outer casing tube and the gradient of the self-locking pins are reasonably designed, the connecting structure can maintain flexibility during frequent earthquakes and have sliding friction during rare occurrence earthquakes, and thus earthquake energy is dissipated.

The invention discloses a self-resetting rigidity self-adaptive control assembly type beam-column joint. A prefabricated column (1) and a prefabricated beam (2) are connected in a hinged mode througha column T-shaped connecting plate (6), a beam T-shaped connecting plate (7) and a hinge pin (11), a saddle-shaped circular plate (8) and a rubber circular plate (9) which can achieve variable rigidity are installed between a first lug plate (6-2) of the column T-shaped connecting plate and a second lug plate (7-2) of the beam T-shaped connecting plate, and a high-elasticity piece (13) is tensioned, fixed and bolted between U-shaped clamping grooves (12) of a first vertical plate (6-1) of the column T-shaped connecting plate and U-shaped clamping grooves (12) of a second vertical plate (7-1) of the beam T-shaped connecting plate through a clamp (14). According to the self-resetting rigidity self-adaptive control assembly type beam-column joint, self-adaptive control over the structure under the action of external loads of different strengths is achieved, large plastic damage to components is avoided, meanwhile, complete reset can be basically achieved after an earthquake, dry operationconstruction of the whole joint is achieved, connection is reliable, installation is convenient, and rapid replacement can be achieved.

The invention discloses a spring yield type energy dissipator for a slope flexible protection system and a design method. The energy dissipator comprises spring steel, a rotating shaft, a pin shaft, aC-shaped clamp and an arc-shaped lug plate. The spring steel is tightly wound on the rotating shaft, the end, provided with a hole, of the spring steel extends out for a certain distance in the tangential direction of the rotating shaft and is connected with a supporting rope of the flexible protection system through the hole, and the other end of the spring steel is welded to the rotating shaft.The pin shaft is sleeved with the rotating shaft, a small gap is reserved, the pin shaft is connected with upper and lower clamp flange plates of the C-shaped clamp through bolts, the arc-shaped lugplate is welded to a C-shaped clamp web, and a lug plate reserved hole is connected with another supporting rope of the flexible protection system. When the flexible protection system is impacted, thespring steel connected with the corresponding supporting rope is pulled and rotated around the rotating shaft, the spring steel is changed into a straightened state from a bent state, and energy is dissipated through plastic deformation of the spring steel. After impact, the spring steel can be coiled into a spring shape around the rotating shaft from the straightened state for repeated use. Theenergy dissipator is reasonable in structural design, clear in energy dissipation mechanism, high in energy dissipation capability, convenient to disassemble, assemble and maintain, suitable for narrow space installation and capable of being repeatedly used.

The invention belongs to the technical field of vibration and impact, and relates to a high-energy pipeline impact energy absorber which is mainly applied to weakening of whipping of high-energy pipelines in a nuclear power plant or a chemical plant and dissipation of kinetic energy of broken pipelines. The energy absorber comprises an outer sleeve, an inner sleeve, an energy-dissipation lead body, an impact pipe, a sleeve end baffle and an impact pipe end baffle, wherein the outer sleeve and the inner sleeve are welded to the sleeve end baffle; the space between the two sleeves is filled with the energy-dissipation lead body, after being impacted, the impact pipe squeezes the energy-dissipation lead body, so that the energy-dissipation lead body plastically deforms and moves towards the internal space of the energy absorber to fill the internal space. The high-energy pipeline impact energy absorber is simple in structure, convenient to mount, high in reliability, good in corrosion resistance and high in cost performance; impact energy is effectively absorbed, and the secondary impact problem of the high-energy pipelines is solved.

The invention relates to a U-shaped variable cross-section soft steel damper with a quasi-linear hysteresis damping characteristic and a combined device. The U-shaped variable cross-section soft steeldamper comprises an equal-section semicircle section, an upper variable cross-section section, an upper connecting section, a lower variable-section section and a lower connecting section. The combined device with the U-shaped variable cross-section soft steel dampers comprises one group or multiple groups of the U-shaped variable cross-section soft steel dampers, the one group or multiple groupsof the U-shaped variable cross-section soft steel dampers are fixed in a box-shaped opening device, and the box-shaped opening device comprises an upper panel, a lower panel, two side panels, a fixedend bottom plate, the U-shaped variable cross-section soft steel dampers are connected with the upper panel or the lower panel through bolts; meanwhile, the U-shaped variable cross-section soft steeldampers are also connected with a connecting moving steel plate through bolts; the connecting moving steel plate is inserted into the groove of the side panel; and the extending part of the connecting moving steel plate is connected with a loading device. The device can achieve the increase of the output of the damper along with the increase of the displacement, and has the quasi-linear hysteresis damping characteristic.

The invention relates to a two-stage performance target self-resetting friction type energy consumption support which comprises a connecting power transmission mechanism, a self-resetting mechanism and an energy consumption mechanism. Compared with the prior art, a shape memory alloy cable with two-stage working states and a high-strength steel bar serve as a core tension component to provide self-resetting driving force and a certain energy consumption capability for a structure, main energy consumption capability is provided by the aid of a friction type energy consumption device, the resetting capability of the support under an extreme earthquake is furthest ensured by the aid of reasonable construction design, and structural collapse and the like caused by failure of the support are prevented.

The invention discloses a prefabricated composite energy-dissipated steel beam and column structure with multi-stage damping and secondary amplification of displacement. The prefabricated composite energy-dissipated steel beam and column structure comprises a prefabricated steel beam, a prefabricated steel column, energy dissipation walls, notches, door and window holes, an upper connecting plate,a lower connecting plate, a vertical type moving displacement support, a displacement amplification rod, a L-shaped fixed support, a U-shaped sliding rod, lug plates, a gear rotating shaft, bolt pins, bolts, front and rear cover plates, fan-shaped notches, column type bearing blocks, limiting rotating plates, an annular groove, shear-resistant keys, shearing blocks, an outer circular ring, low yield point steel and an inner limiting ring. The prefabricated composite energy-dissipated steel beam and column structure is clear in energy dissipation mechanism, realizes multistage control energy dissipation and gives full play to the functions of each energy dissipation part at different stages through shear deformation of the shearing blocks and the yield energy dissipation of the low yield point steel. Furthermore, the horizontal displacement between layers of a structure is subjected to secondary amplification, the efficiency of energy dissipation is improved, the damage and failure ofa main body of a steel structure can be effectively reduced, and replacement is convenient after the earthquake or after the damage.

The invention belongs to the technical field of civil engineering, and particularly relates to a tension-pressure equal-strength type metal energy consumption re-centering damper and an installation and using method thereof. The tension-pressure equal-strength type metal energy consumption re-centering damper comprises a cylinder body, a guide rod, a first metal corrugated pipe, a belleville spring set, a pressure sensor and a second metal corrugated pipe, wherein the first metal corrugated pipe, the belleville spring set, the pressure sensor and the second metal corrugated pipe are connectedto the guide rod, the guide rod is connected with the cylinder body through a first connecting plate, a first limiting plate, a first connecting bolt and a third connecting bolt, a first lug plate anda second lug plate are arranged on the cylinder body and the guide rod respectively, and the first lug plate and the second lug plate are connected to the stress positions of a building structure. The tension-pressure equal-strength type metal energy consumption re-centering damper can be applied to the fields of shock absorption control of building and bridge structures, rapid recovery of the using function of the structure after an earthquake and the like, the metal corrugated pipes are used for energy consumption, the energy consumption capacity of the metal corrugated pipes is stable, theenergy consumption mechanism is clear, the out-of-plane instability problem does not exist during stress, and the tension-pressure equal-strength type metal energy consumption re-centering damper hasgood application prospects in the field of the civil engineering.

The invention discloses a self-positioning mounting steel wood energy dissipation combined joint. The self-positioning mounting steel wood energy dissipation combined joint comprises vertical columns,horizontal beams, oblique bracket supports, steel wedge hangs and energy dissipation rods, the steel oblique bracket supports are composed of side steel plates and bracket supports, the steel obliquebracket supports are solidified to the side surfaces of the vertical wood columns through the side steel plates, the steel wedge hangs are composed of end steel plates and sphenocephalys, the steel wedge hangs are fixed to the end parts of the horizontal beams through the end steel plates, the energy dissipation rods are parallel to the beams and located on the lower parts, one ends of the energydissipation rods are solidified with the wood columns, and the other ends of the energy dissipation rods are solidified with the end parts of the horizontal beams. According to the self-positioning mounting steel wood energy dissipation combined joint, beam column mounting self-positioning can be driven by wood beam bearing, under the action of earthquake, the mounted energy dissipation rods canform hysteretic energy dissipation capacity through pull pressing depending on connection construction in the joint rotation process, replacement of the energy dissipation rods after earthquake is further facilitated, and rapid repair of the joint is realized.

The invention provides a metal energy dissipation damper comprising a connecting piece and a metal energy dissipation element. The connecting piece is fixedly connected with a building, the metal energy dissipation element is connected with the building by the connecting piece, and the energy dissipation element consists of a pair of T-shaped section steels after the middle portion is relatively bent in a welding connection. The medal energy dissipation element is divided into a straight-line segment and a circular segment, and the two ends of the circular segment are separately connected withthe building by the straight-line segment and the connecting piece. The straight-line segment of the metal energy dissipation element is provided with a plurality of first bolts, and the two ends ofthe pair of the T-shaped section steels are in a fixed connection by first bolts; the straight-line segment of the metal energy dissipation element is connected with the connecting piece by a second bot. The metal energy dissipation damper is explicit in energy dissipation mechanism, simple in structure, low in cost, flexible in using, strong in applicability. The seismic behavior of the buildingstructure is enhanced efficiently, the wind-induced dynamic response of the high-rise and super high-rise structure also can be reduced, meanwhile, the metal energy dissipation damper applies to the rapid construction of an assembled building structure, and marketing application prospects is good in generalization.

The invention relates to a novel energy dissipation and shock absorption inter-tower connection structure of a framing tower-connected cable-stayed bridge. The structure comprises bridge tower bearing platforms, bridge tower columns are fixed to the bridge tower bearing platforms, the bridge tower columns are divided into upper tower columns and lower tower columns through bridge tower cross beams arranged on the bridge tower columns, and the bottom ends of two bridge towers are connected through a combined structure bearing platform straining beam between the bridge tower bearing platforms; inter-tower steel box inclined struts are arranged between tower limbs of the lower tower columns, so that the two bridge towers form local connection; and steel corbels are installed on the tower columns at the positions of the bridge tower cross beams, and dampers are installed between the two bridge towers through the steel corbels. According to the framing tower connecting structure form provided by the invention, on the basis of not influencing the construction period of the bridge tower and not increasing the construction difficulty, the transverse bridge direction earthquake response of the bridge tower is greatly reduced, and the anti-seismic property, the safety and the economical efficiency of the bridge tower are greatly improved.

The invention relates to the technical field of building structures, and discloses a slotted energy-consuming steel pipe shear wall with hybrid dampers. The slotted energy-consuming steel pipe shear wall comprises steel plate concrete, steel pipe concrete and the hybrid dampers, wherein the steel plate concrete is fixed to the outer side of the steel pipe concrete to form a section of wall limb; each hybrid damper comprises an E-shaped steel plate, a pi-shaped steel plate and a soft steel damping piece; at least one part of each pi-shaped steel plate is inserted into the corresponding E-shaped steel plate, so that a cross part is formed between each E-shaped steel plate and the corresponding pi-shaped steel plate; each soft steel damping piece penetrates through the corresponding cross part and is connected with the cross part; the two ends of each soft steel damping piece are fixedly connected with the corresponding E-shaped steel plate; the outer side walls of each E-shaped steel plate and the corresponding pi-shaped steel plate are fixedly connected with the corresponding steel plate concrete, so that a section of wall limb is connected into the shear wall; and a plurality of sets of hybrid dampers are arranged between every two adjacent sections of wall limbs. The slotted energy-consuming steel pipe shear wall has the beneficial effects that the hybrid dampers can be directly welded to steel plates, the steel plates do not need to be pre-buried, anchoring steel bars do not need to be arranged, and the joint construction difficulty is lowered.

The invention relates to an automatic-reset support equipped with a stepless regulating friction energy dissipation device. The support comprises a connection transmission mechanism, an automatic-reset mechanism and a friction energy dissipation mechanism, wherein the connection transmission mechanism comprises an outer sleeve, an inner sleeve, two end connecting plates and two end plates, the inner sleeve is arranged in the outer sleeve and is fixed to the outer sleeve in a radial direction, the two end connecting plates are located at two opposite ends and are fixedly connected to the ends of the inner sleeve and the outer sleeve correspondingly, the two end plates are located on the two axial sides of the outer sleeve and the inner sleeve correspondingly; and the friction energy dissipation mechanism comprises two inner friction plates, two outer friction plates and pre-tightening bolts, wherein the two inner friction plates, the two outer friction plates and the pre-tightening bolts are fixed on the outer sleeve and the inner sleeve, and the two outer friction plates clamp the two inner friction plates through pre-tightening bolts. Compared with the prior art, the support can solve the conflict between supporting energy dissipation capacity and the automatic-reset capacity, obstruction of supporting reset is reduced while the reliable energy dissipation capacity is provided, and flexibility of supporting loading and unloading rigidity and yield bearing capacity adjustment is realized.

The invention relates to a two-stage performance target self-resetting friction type energy consumption support which comprises a connecting power transmission mechanism, a self-resetting mechanism and an energy consumption mechanism. Compared with the prior art, a shape memory alloy cable with two-stage working states and a high-strength steel bar serve as a core tension component to provide self-resetting driving force and a certain energy consumption capability for a structure, main energy consumption capability is provided by the aid of a friction type energy consumption device, the resetting capability of the support under an extreme earthquake is furthest ensured by the aid of reasonable construction design, and structural collapse and the like caused by failure of the support are prevented.

The invention relates to a friction self-locking type prefabricated section spliced pier connecting device. Prestressed tendons in a traditional section spliced pier connecting device are omitted. A concrete-filled steel tube mode is adopted for locally reinforcing a connecting area. An outer casing tube with a larger diameter and an inner casing tube with a smaller diameter are adopted as concrete-filled steel tubes at the two ends for connection respectively. The inner steel tube and the outer steel tube are connected in a sleeved mode in the section splicing process, self-locking pins are struck into the part between the inner steel tube and the outer steel tube, friction self-locking is made to be formed between the inner casing tube and the outer casing tube, and the tight connection between sections is ensured. Due to the fact that the thickness of the outer casing tube and the gradient of the self-locking pins are reasonably designed, the connecting structure can maintain flexibility during frequent earthquakes and have sliding friction during rare occurrence earthquakes, and thus earthquake energy is dissipated.

The invention discloses a spring-type yielding energy dissipator and a design method for a slope flexible protection system. The energy dissipator includes spring steel, a rotating shaft, a pin shaft, a C-shaped clamp, and an arc-shaped ear plate. Among them, the spring steel is tightly wound on the rotating shaft, and at the same time, one end with a hole extends a distance along the tangential direction of the rotating shaft and is connected to the support rope of the flexible protection system through the hole, and the other end is welded to the rotating shaft. The rotating shaft is sleeved with a pin shaft with a small gap. The pin shaft is connected to the upper and lower clamp flange plates of the C-shaped clamp through bolts. The web of the C-shaped clamp is welded with arc-shaped lugs, and the reserved holes in the lugs are connected to the other side of the flexible protection system. A support rope is attached. When the flexible protection system is impacted, the spring steel connected to the support rope is pulled and rotated around the axis of rotation, changing from a bent state to a straight state, consuming energy through its plastic deformation. After the impact is over, the spring steel can be coiled around the axis of rotation into a spring shape from a straightened state to achieve repeated use. The energy dissipation device of the invention has reasonable structural design, clear energy dissipation mechanism, strong energy dissipation capability, convenient disassembly, assembly and maintenance, suitable for installation in a narrow space, and can be used repeatedly.

Provided is a mountable and replaceable type low yield point compound energy dissipation multiple-seam type coupling beam system. According to the multiple-seam type coupling beam system, open seam can be conducted on an ordinary coupling beam, a compound energy dissipation device which is constituted by low yield point steel, energy dissipation lead and the like can be assembled to the open seam of the coupling beam, thus sufficient energy dissipation and seismic mitigation can be conducted through the compound energy dissipation device in an earthquake, the situation that severe destroying occurs on a shear wall body is avoided, the situation that brittle failure of the coupling beam is prevented, and thus the overall safety of the structure is guaranteed. The mountable and replaceable type low yield point compound energy dissipation multiple-seam type coupling beam system mainly comprises the reinforced concrete multiple-layer coupling beam in the shear wall structure, upper and lower part covering plates of the compound energy dissipation device, the low yield point steel, the energy dissipation lead, environmentally friendly coating, a bolt and a bolt hole. According to the mountable and replaceable type low yield point compound energy dissipation device, mountable construction can be achieved, the device is time saving, and it is convenient to replace the device after the earthquake. According to the coupling beam system, obvious adjusting does not need to be conducted on a design scheme, the cost is low, and the system is safe and environmentally friendly, convenient in construction, easy in maintenance after the earthquake, and high in reliability.

The invention relates to a design method of a perforated yield type energy dissipator,. The energy dissipator comprises a perforated metal disc, a clamp, a protection rope and a connecting structure. The metal disc is provided with spirally distributed through small holes to form a preset tearing path, and holes are reserved in the two ends of the metal disc and are detachably connected with a steel wire rope of a flexible protection system. The protection rope is connected with the steel wire rope through the connecting structure. When the flexible protection system is impacted, the metal disc is torn along the perforation path to form two stretching arms which extend in opposite directions, and the purposes of buffering and energy consumption are achieved through yield deformation of steel. The deformation and brittleness braking performance of the steel are combined onto the modular energy dissipator, the number of the energy dissipators can be designed according to the actual energy consumption requirement for assembly, and the interaction between assemblies in the slope flexible protection system is optimized by adjusting a characteristic response curve. The energy dissipator is reasonable in design, clear in energy dissipation mechanism and capable of being used in a combined mode, and the energy dissipation capacity of the protection system is effectively improved.

The invention discloses a self-damping wallboard and a damper thereof and a manufacturing method of the wallboard, and belongs to the technical field of damping of architecture wallboards. The damper is arranged on the top of the wallboard, and the damper comprises multiple vertical metal rods and multiple horizontal metal rods; the vertical metal rods are arrayed into one or more rows in the length direction, and one or more horizontal vertical rods are connected between two adjacent vertical metals rods in each row. The wallboard uses the elastic-plastic performance of the damper to retard energy consumption, is explicit in energy dissipation mechanism, can achieve remarkable energy dissipation and shock absorption effects under the earthquake effect, and absorbs earthquake waves which are transmitted to the upper portion, and the wallboard itself cannot be damaged.

The invention discloses a self-positioning mounting steel wood energy dissipation combined joint. The self-positioning mounting steel wood energy dissipation combined joint comprises vertical columns,horizontal beams, oblique bracket supports, steel wedge hangs and energy dissipation rods, the steel oblique bracket supports are composed of side steel plates and bracket supports, the steel obliquebracket supports are solidified to the side surfaces of the vertical wood columns through the side steel plates, the steel wedge hangs are composed of end steel plates and sphenocephalys, the steel wedge hangs are fixed to the end parts of the horizontal beams through the end steel plates, the energy dissipation rods are parallel to the beams and located on the lower parts, one ends of the energydissipation rods are solidified with the wood columns, and the other ends of the energy dissipation rods are solidified with the end parts of the horizontal beams. According to the self-positioning mounting steel wood energy dissipation combined joint, beam column mounting self-positioning can be driven by wood beam bearing, under the action of earthquake, the mounted energy dissipation rods canform hysteretic energy dissipation capacity through pull pressing depending on connection construction in the joint rotation process, replacement of the energy dissipation rods after earthquake is further facilitated, and rapid repair of the joint is realized.